1 ;;; gnus-start.el --- startup functions for Gnus
2 ;; Copyright (C) 1996,97,98,99 Free Software Foundation, Inc.
4 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
7 ;; This file is part of GNU Emacs.
9 ;; GNU Emacs is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; GNU Emacs is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 ;; Boston, MA 02111-1307, USA.
28 (eval-when-compile (require 'cl))
29 (eval-when-compile (require 'static))
39 (defcustom gnus-startup-file (nnheader-concat gnus-home-directory ".newsrc")
41 `.newsrc-SERVER' will be used instead if that exists."
45 (defcustom gnus-product-directory
46 (nnheader-concat gnus-directory (concat "." gnus-product-name))
47 "Product depend data files directory."
49 :type '(choice directory (const nil)))
51 (defcustom gnus-init-file (nnheader-concat gnus-home-directory ".gnus")
52 "Your Gnus Emacs-Lisp startup file name.
53 If a file with the `.el' or `.elc' suffixes exists, it will be read instead."
57 (defcustom gnus-site-init-file
59 (concat (file-name-directory
60 (directory-file-name installation-directory))
61 "site-lisp/gnus-init")
63 "The site-wide Gnus Emacs-Lisp startup file name, or nil if none.
64 If a file with the `.el' or `.elc' suffixes exists, it will be read instead."
66 :type '(choice file (const nil)))
68 (defcustom gnus-default-subscribed-newsgroups nil
69 "List of newsgroups to subscribe, when a user runs Gnus the first time.
70 The value should be a list of strings.
71 If it is t, Gnus will not do anything special the first time it is
72 started; it'll just use the normal newsgroups subscription methods."
74 :type '(choice (repeat string) (const :tag "Nothing special" t)))
76 (defcustom gnus-use-dribble-file t
77 "*Non-nil means that Gnus will use a dribble file to store user updates.
78 If Emacs should crash without saving the .newsrc files, complete
79 information can be restored from the dribble file."
80 :group 'gnus-dribble-file
83 (defcustom gnus-dribble-directory nil
84 "*The directory where dribble files will be saved.
85 If this variable is nil, the directory where the .newsrc files are
87 :group 'gnus-dribble-file
88 :type '(choice directory (const nil)))
90 (defcustom gnus-check-new-newsgroups 'ask-server
91 "*Non-nil means that Gnus will run `gnus-find-new-newsgroups' at startup.
92 This normally finds new newsgroups by comparing the active groups the
93 servers have already reported with those Gnus already knows, either alive
96 When any of the following are true, `gnus-find-new-newsgroups' will instead
97 ask the servers (primary, secondary, and archive servers) to list new
98 groups since the last time it checked:
99 1. This variable is `ask-server'.
100 2. This variable is a list of select methods (see below).
101 3. `gnus-read-active-file' is nil or `some'.
102 4. A prefix argument is given to `gnus-find-new-newsgroups' interactively.
104 Thus, if this variable is `ask-server' or a list of select methods or
105 `gnus-read-active-file' is nil or `some', then the killed list is no
106 longer necessary, so you could safely set `gnus-save-killed-list' to nil.
108 This variable can be a list of select methods which Gnus will query with
109 the `ask-server' method in addition to the primary, secondary, and archive
113 (setq gnus-check-new-newsgroups
114 '((nntp \"some.server\") (nntp \"other.server\")))
116 If this variable is nil, then you have to tell Gnus explicitly to
117 check for new newsgroups with \\<gnus-group-mode-map>\\[gnus-find-new-newsgroups]."
119 :type '(choice (const :tag "no" nil)
120 (const :tag "by brute force" t)
121 (const :tag "ask servers" ask-server)
122 (repeat :menu-tag "ask additional servers"
123 :tag "ask additional servers"
125 (sexp :format "%v"))))
127 (defcustom gnus-check-bogus-newsgroups nil
128 "*Non-nil means that Gnus will check and remove bogus newsgroup at startup.
129 If this variable is nil, then you have to tell Gnus explicitly to
130 check for bogus newsgroups with \\<gnus-group-mode-map>\\[gnus-group-check-bogus-groups]."
131 :group 'gnus-start-server
134 (defcustom gnus-read-active-file 'some
135 "*Non-nil means that Gnus will read the entire active file at startup.
136 If this variable is nil, Gnus will only know about the groups in your
139 If this variable is `some', Gnus will try to only read the relevant
140 parts of the active file from the server. Not all servers support
141 this, and it might be quite slow with other servers, but this should
142 generally be faster than both the t and nil value.
144 If you set this variable to nil or `some', you probably still want to
145 be told about new newsgroups that arrive. To do that, set
146 `gnus-check-new-newsgroups' to `ask-server'. This may not work
147 properly with all servers."
148 :group 'gnus-start-server
149 :type '(choice (const nil)
153 (defconst gnus-level-subscribed 5
154 "Groups with levels less than or equal to this variable are subscribed.")
156 (defconst gnus-level-unsubscribed 7
157 "Groups with levels less than or equal to this variable are unsubscribed.
158 Groups with levels less than `gnus-level-subscribed', which should be
159 less than this variable, are subscribed.")
161 (defconst gnus-level-zombie 8
162 "Groups with this level are zombie groups.")
164 (defconst gnus-level-killed 9
165 "Groups with this level are killed.")
167 (defcustom gnus-level-default-subscribed 3
168 "*New subscribed groups will be subscribed at this level."
169 :group 'gnus-group-levels
172 (defcustom gnus-level-default-unsubscribed 6
173 "*New unsubscribed groups will be unsubscribed at this level."
174 :group 'gnus-group-levels
177 (defcustom gnus-activate-level (1+ gnus-level-subscribed)
178 "*Groups higher than this level won't be activated on startup.
179 Setting this variable to something low might save lots of time when
180 you have many groups that you aren't interested in."
181 :group 'gnus-group-levels
184 (defcustom gnus-activate-foreign-newsgroups 4
185 "*If nil, Gnus will not check foreign newsgroups at startup.
186 If it is non-nil, it should be a number between one and nine. Foreign
187 newsgroups that have a level lower or equal to this number will be
188 activated on startup. For instance, if you want to active all
189 subscribed newsgroups, but not the rest, you'd set this variable to
190 `gnus-level-subscribed'.
192 If you subscribe to lots of newsgroups from different servers, startup
193 might take a while. By setting this variable to nil, you'll save time,
194 but you won't be told how many unread articles there are in the
196 :group 'gnus-group-levels
197 :type '(choice integer
198 (const :tag "none" nil)))
200 (defcustom gnus-read-newsrc-file t
201 "*Non-nil means that Gnus will read the `.newsrc' file.
202 Gnus always reads its own startup file, which is called
203 \".newsrc.eld\". The file called \".newsrc\" is in a format that can
204 be readily understood by other newsreaders. If you don't plan on
205 using other newsreaders, set this variable to nil to save some time on
210 (defcustom gnus-save-newsrc-file t
211 "*Non-nil means that Gnus will save the `.newsrc' file.
212 Gnus always saves its own startup file, which is called
213 \".newsrc.eld\". The file called \".newsrc\" is in a format that can
214 be readily understood by other newsreaders. If you don't plan on
215 using other newsreaders, set this variable to nil to save some time on
220 (defcustom gnus-save-killed-list t
221 "*If non-nil, save the list of killed groups to the startup file.
222 If you set this variable to nil, you'll save both time (when starting
223 and quitting) and space (both memory and disk), but it will also mean
224 that Gnus has no record of which groups are new and which are old, so
225 the automatic new newsgroups subscription methods become meaningless.
227 You should always set `gnus-check-new-newsgroups' to `ask-server' or
228 nil if you set this variable to nil.
230 This variable can also be a regexp. In that case, all groups that do
231 not match this regexp will be removed before saving the list."
235 (defcustom gnus-ignored-newsgroups
237 '("^to\\." ; not "real" groups
238 "^[0-9. \t]+ " ; all digits in name
239 "^[\"][]\"[#'()]" ; bogus characters
242 "*A regexp to match uninteresting newsgroups in the active file.
243 Any lines in the active file matching this regular expression are
244 removed from the newsgroup list before anything else is done to it,
245 thus making them effectively non-existent."
246 :group 'gnus-group-new
249 (defcustom gnus-subscribe-newsgroup-method 'gnus-subscribe-zombies
250 "*Function called with a group name when new group is detected.
251 A few pre-made functions are supplied: `gnus-subscribe-randomly'
252 inserts new groups at the beginning of the list of groups;
253 `gnus-subscribe-alphabetically' inserts new groups in strict
254 alphabetic order; `gnus-subscribe-hierarchically' inserts new groups
255 in hierarchical newsgroup order; `gnus-subscribe-interactively' asks
256 for your decision; `gnus-subscribe-killed' kills all new groups;
257 `gnus-subscribe-zombies' will make all new groups into zombies;
258 `gnus-subscribe-topics' will enter groups into the topics that
260 :group 'gnus-group-new
261 :type '(radio (function-item gnus-subscribe-randomly)
262 (function-item gnus-subscribe-alphabetically)
263 (function-item gnus-subscribe-hierarchically)
264 (function-item gnus-subscribe-interactively)
265 (function-item gnus-subscribe-killed)
266 (function-item gnus-subscribe-zombies)
267 (function-item gnus-subscribe-topics)
270 (defcustom gnus-subscribe-options-newsgroup-method
271 'gnus-subscribe-alphabetically
272 "*This function is called to subscribe newsgroups mentioned on \"options -n\" lines.
273 If, for instance, you want to subscribe to all newsgroups in the
274 \"no\" and \"alt\" hierarchies, you'd put the following in your
277 options -n no.all alt.all
279 Gnus will the subscribe all new newsgroups in these hierarchies with
280 the subscription method in this variable."
281 :group 'gnus-group-new
282 :type '(radio (function-item gnus-subscribe-randomly)
283 (function-item gnus-subscribe-alphabetically)
284 (function-item gnus-subscribe-hierarchically)
285 (function-item gnus-subscribe-interactively)
286 (function-item gnus-subscribe-killed)
287 (function-item gnus-subscribe-zombies)
290 (defcustom gnus-subscribe-hierarchical-interactive nil
291 "*If non-nil, Gnus will offer to subscribe hierarchically.
292 When a new hierarchy appears, Gnus will ask the user:
294 'alt.binaries': Do you want to subscribe to this hierarchy? ([d]ys):
296 If the user pressed `d', Gnus will descend the hierarchy, `y' will
297 subscribe to all newsgroups in the hierarchy and `s' will skip this
298 hierarchy in its entirety."
299 :group 'gnus-group-new
302 (defcustom gnus-auto-subscribed-groups
303 "nnml\\|^nnfolder\\|^nnmbox\\|^nnmh\\|^nnbabyl"
304 "*All new groups that match this regexp will be subscribed automatically.
305 Note that this variable only deals with new groups. It has no effect
306 whatsoever on old groups.
308 New groups that match this regexp will not be handled by
309 `gnus-subscribe-newsgroup-method'. Instead, they will
310 be subscribed using `gnus-subscribe-options-newsgroup-method'."
311 :group 'gnus-group-new
314 (defcustom gnus-options-subscribe nil
315 "*All new groups matching this regexp will be subscribed unconditionally.
316 Note that this variable deals only with new newsgroups. This variable
317 does not affect old newsgroups.
319 New groups that match this regexp will not be handled by
320 `gnus-subscribe-newsgroup-method'. Instead, they will
321 be subscribed using `gnus-subscribe-options-newsgroup-method'."
322 :group 'gnus-group-new
323 :type '(choice regexp
324 (const :tag "none" nil)))
326 (defcustom gnus-options-not-subscribe nil
327 "*All new groups matching this regexp will be ignored.
328 Note that this variable deals only with new newsgroups. This variable
329 does not affect old (already subscribed) newsgroups."
330 :group 'gnus-group-new
331 :type '(choice regexp
332 (const :tag "none" nil)))
334 (defcustom gnus-modtime-botch nil
335 "*Non-nil means .newsrc should be deleted prior to save.
336 Its use is due to the bogus appearance that .newsrc was modified on
341 (defcustom gnus-check-bogus-groups-hook nil
342 "A hook run after removing bogus groups."
343 :group 'gnus-start-server
346 (defcustom gnus-startup-hook nil
347 "A hook called at startup.
348 This hook is called after Gnus is connected to the NNTP server."
352 (defcustom gnus-before-startup-hook nil
353 "A hook called at before startup.
354 This hook is called as the first thing when Gnus is started."
358 (defcustom gnus-started-hook nil
359 "A hook called as the last thing after startup."
363 (defcustom gnus-setup-news-hook nil
364 "A hook after reading the .newsrc file, but before generating the buffer."
368 (defcustom gnus-get-new-news-hook nil
369 "A hook run just before Gnus checks for new news."
370 :group 'gnus-group-new
373 (defcustom gnus-after-getting-new-news-hook
374 (when (gnus-boundp 'display-time-timer)
375 '(display-time-event-handler))
376 "A hook run after Gnus checks for new news when Gnus is already running."
377 :group 'gnus-group-new
380 (defcustom gnus-save-newsrc-hook nil
381 "A hook called before saving any of the newsrc files."
385 (defcustom gnus-save-quick-newsrc-hook nil
386 "A hook called just before saving the quick newsrc file.
387 Can be used to turn version control on or off."
391 (defcustom gnus-save-standard-newsrc-hook nil
392 "A hook called just before saving the standard newsrc file.
393 Can be used to turn version control on or off."
397 (defcustom gnus-always-read-dribble-file nil
398 "Unconditionally read the dribble file."
402 (defvar gnus-startup-file-coding-system (static-if (boundp 'MULE)
405 "*Coding system for startup file.")
407 ;;; Internal variables
409 (defvar gnus-newsrc-file-version nil)
410 (defvar gnus-override-subscribe-method nil)
411 (defvar gnus-dribble-buffer nil)
412 (defvar gnus-newsrc-options nil
413 "Options line in the .newsrc file.")
415 (defvar gnus-newsrc-options-n nil
416 "List of regexps representing groups to be subscribed/ignored unconditionally.")
418 (defvar gnus-newsrc-last-checked-date nil
419 "Date Gnus last asked server for new newsgroups.")
421 (defvar gnus-current-startup-file nil
422 "Startup file for the current host.")
424 ;; Byte-compiler warning.
425 (defvar gnus-group-line-format)
427 ;; Suggested by Brian Edmonds <edmonds@cs.ubc.ca>.
428 (defvar gnus-init-inhibit nil)
429 (defun gnus-read-init-file (&optional inhibit-next)
430 ;; Don't load .gnus if the -q option was used.
432 (if gnus-init-inhibit
433 (setq gnus-init-inhibit nil)
434 (setq gnus-init-inhibit inhibit-next)
435 (let ((files (list gnus-site-init-file gnus-init-file))
438 (and (setq file (pop files))
439 (or (and (file-exists-p file)
440 ;; Don't try to load a directory.
441 (not (file-directory-p file)))
442 (file-exists-p (concat file ".el"))
443 (file-exists-p (concat file ".elc")))
447 (error "Error in %s: %s" file var)))))))))
449 ;; For subscribing new newsgroup
451 (defun gnus-subscribe-hierarchical-interactive (groups)
452 (let ((groups (sort groups 'string<))
453 prefixes prefix start ans group starts)
455 (setq prefixes (list "^"))
456 (while (and groups prefixes)
457 (while (not (string-match (car prefixes) (car groups)))
458 (setq prefixes (cdr prefixes)))
459 (setq prefix (car prefixes))
460 (setq start (1- (length prefix)))
461 (if (and (string-match "[^\\.]\\." (car groups) start)
464 (concat "^" (substring (car groups) 0 (match-end 0))))
465 (string-match prefix (cadr groups)))
467 (push prefix prefixes)
468 (message "Descend hierarchy %s? ([y]nsq): "
469 (substring prefix 1 (1- (length prefix))))
470 (while (not (memq (setq ans (read-char-exclusive))
471 '(?y ?\n ?\r ?n ?s ?q)))
473 (message "Descend hierarchy %s? ([y]nsq): "
474 (substring prefix 1 (1- (length prefix)))))
478 (setq group (car groups))))
479 (push group gnus-killed-list)
480 (gnus-sethash group group gnus-killed-hashtb)
481 (setq groups (cdr groups)))
482 (setq starts (cdr starts)))
486 (setq group (car groups))))
487 (gnus-sethash group group gnus-killed-hashtb)
488 (gnus-subscribe-alphabetically (car groups))
489 (setq groups (cdr groups)))
490 (setq starts (cdr starts)))
493 (setq group (car groups))
494 (push group gnus-killed-list)
495 (gnus-sethash group group gnus-killed-hashtb)
496 (setq groups (cdr groups))))
498 (message "Subscribe %s? ([n]yq)" (car groups))
499 (while (not (memq (setq ans (read-char-exclusive))
500 '(?y ?\n ?\r ?q ?n)))
502 (message "Subscribe %s? ([n]yq)" (car groups)))
503 (setq group (car groups))
505 (gnus-subscribe-alphabetically (car groups))
506 (gnus-sethash group group gnus-killed-hashtb))
509 (setq group (car groups))
510 (push group gnus-killed-list)
511 (gnus-sethash group group gnus-killed-hashtb)
512 (setq groups (cdr groups))))
514 (push group gnus-killed-list)
515 (gnus-sethash group group gnus-killed-hashtb)))
516 (setq groups (cdr groups)))))))
518 (defun gnus-subscribe-randomly (newsgroup)
519 "Subscribe new NEWSGROUP by making it the first newsgroup."
520 (gnus-subscribe-newsgroup newsgroup))
522 (defun gnus-subscribe-alphabetically (newgroup)
523 "Subscribe new NEWSGROUP and insert it in alphabetical order."
524 (let ((groups (cdr gnus-newsrc-alist))
526 (while (and (not before) groups)
527 (if (string< newgroup (caar groups))
528 (setq before (caar groups))
529 (setq groups (cdr groups))))
530 (gnus-subscribe-newsgroup newgroup before)))
532 (defun gnus-subscribe-hierarchically (newgroup)
533 "Subscribe new NEWSGROUP and insert it in hierarchical newsgroup order."
534 ;; Basic ideas by mike-w@cs.aukuni.ac.nz (Mike Williams)
536 (set-buffer (nnheader-find-file-noselect gnus-current-startup-file))
537 (let ((groupkey newgroup)
539 (while (and (not before) groupkey)
540 (goto-char (point-min))
542 (concat "^\\(" (regexp-quote groupkey) ".*\\)[!:]")))
543 (while (and (re-search-forward groupkey-re nil t)
545 (setq before (match-string 1))
546 (string< before newgroup)))))
547 ;; Remove tail of newsgroup name (eg. a.b.c -> a.b)
549 (when (string-match "^\\(.*\\)\\.[^.]+$" groupkey)
550 (substring groupkey (match-beginning 1) (match-end 1)))))
551 (gnus-subscribe-newsgroup newgroup before))
552 (kill-buffer (current-buffer))))
554 (defun gnus-subscribe-interactively (group)
555 "Subscribe the new GROUP interactively.
556 It is inserted in hierarchical newsgroup order if subscribed. If not,
558 (if (gnus-y-or-n-p (format "Subscribe new newsgroup: %s " group))
559 (gnus-subscribe-hierarchically group)
560 (push group gnus-killed-list)))
562 (defun gnus-subscribe-zombies (group)
563 "Make the new GROUP into a zombie group."
564 (push group gnus-zombie-list))
566 (defun gnus-subscribe-killed (group)
567 "Make the new GROUP a killed group."
568 (push group gnus-killed-list))
570 (defun gnus-subscribe-newsgroup (newsgroup &optional next)
571 "Subscribe new NEWSGROUP.
572 If NEXT is non-nil, it is inserted before NEXT. Otherwise it is made
573 the first newsgroup."
575 (goto-char (point-min))
576 ;; We subscribe the group by changing its level to `subscribed'.
577 (gnus-group-change-level
578 newsgroup gnus-level-default-subscribed
579 gnus-level-killed (gnus-gethash (or next "dummy.group")
581 (gnus-message 5 "Subscribe newsgroup: %s" newsgroup)))
583 (defun gnus-read-active-file-p ()
584 "Say whether the active file has been read from `gnus-select-method'."
585 (memq gnus-select-method gnus-have-read-active-file))
587 ;;; General various misc type functions.
589 ;; Silence byte-compiler.
590 (defvar gnus-current-headers)
591 (defvar gnus-thread-indent-array)
592 (defvar gnus-newsgroup-name)
593 (defvar gnus-newsgroup-headers)
594 (defvar gnus-group-list-mode)
595 (defvar gnus-group-mark-positions)
596 (defvar gnus-newsgroup-data)
597 (defvar gnus-newsgroup-unreads)
598 (defvar nnoo-state-alist)
599 (defvar gnus-current-select-method)
601 (defun gnus-clear-quick-file-variables ()
602 "Clear all variables in quick startup files."
603 (let ((variables gnus-variable-list))
604 ;; Clear Gnus variables.
606 (set (car variables) nil)
607 (setq variables (cdr variables))))
608 (let ((files gnus-product-variable-file-list))
610 (let ((variables (nthcdr 3 (car files))))
612 (set (car variables) nil)
613 (setq variables (cdr variables))))
614 (setq files (cdr files)))))
616 (defun gnus-clear-system ()
617 "Clear all variables and buffers."
618 ;; Clear gnus variables.
619 (gnus-clear-quick-file-variables)
620 ;; Clear other internal variables.
621 (setq gnus-list-of-killed-groups nil
622 gnus-have-read-active-file nil
623 gnus-newsrc-alist nil
624 gnus-newsrc-hashtb nil
627 gnus-killed-hashtb nil
628 gnus-active-hashtb nil
629 gnus-moderated-hashtb nil
630 gnus-description-hashtb nil
631 gnus-current-headers nil
632 gnus-thread-indent-array nil
633 gnus-newsgroup-headers nil
634 gnus-newsgroup-name nil
635 gnus-server-alist nil
636 gnus-group-list-mode nil
637 gnus-opened-servers nil
638 gnus-group-mark-positions nil
639 gnus-newsgroup-data nil
640 gnus-newsgroup-unreads nil
642 gnus-current-select-method nil
643 gnus-ephemeral-servers nil)
644 (gnus-shutdown 'gnus)
645 ;; Kill the startup file.
646 (and gnus-current-startup-file
647 (get-file-buffer gnus-current-startup-file)
648 (kill-buffer (get-file-buffer gnus-current-startup-file)))
649 ;; Clear the dribble buffer.
651 ;; Kill global KILL file buffer.
652 (when (get-file-buffer (gnus-newsgroup-kill-file nil))
653 (kill-buffer (get-file-buffer (gnus-newsgroup-kill-file nil))))
654 (gnus-kill-buffer nntp-server-buffer)
655 ;; Kill Gnus buffers.
656 (let ((buffers (gnus-buffers)))
658 (mapcar 'kill-buffer buffers)))
659 ;; Remove Gnus frames.
660 (gnus-kill-gnus-frames))
662 (defun gnus-no-server-1 (&optional arg slave)
664 If ARG is a positive number, Gnus will use that as the
665 startup level. If ARG is nil, Gnus will be started at level 2.
666 If ARG is non-nil and not a positive number, Gnus will
667 prompt the user for the name of an NNTP server to use.
668 As opposed to `gnus', this command will not connect to the local server."
670 (let ((val (or arg (1- gnus-level-default-subscribed))))
672 (make-local-variable 'gnus-group-use-permanent-levels)
673 (setq gnus-group-use-permanent-levels val)))
675 (defun gnus-1 (&optional arg dont-connect slave)
677 If ARG is non-nil and a positive number, Gnus will use that as the
678 startup level. If ARG is non-nil and not a positive number, Gnus will
679 prompt the user for the name of an NNTP server to use."
684 (switch-to-buffer gnus-group-buffer)
685 (gnus-group-get-new-news
688 (max (car gnus-group-list-mode) arg))))
692 (gnus-run-hooks 'gnus-before-startup-hook)
693 (nnheader-init-server-buffer)
694 (setq gnus-slave slave)
695 (gnus-read-init-file)
697 (when gnus-simple-splash
698 (setq gnus-simple-splash nil)
702 ((and (eq window-system 'x)
703 (= (frame-height) (1+ (window-height))))
706 (let ((level (and (numberp arg) (> arg 0) arg))
712 (gnus-start-news-server (and arg (not level))))))
713 (if (and (not dont-connect)
716 (gnus-run-hooks 'gnus-startup-hook)
717 ;; NNTP server is successfully open.
719 ;; Find the current startup file name.
720 (setq gnus-current-startup-file
721 (gnus-make-newsrc-file gnus-startup-file))
723 ;; Read the dribble file.
724 (when (or gnus-slave gnus-use-dribble-file)
725 (gnus-dribble-read-file))
727 ;; Allow using GroupLens predictions.
728 (when gnus-use-grouplens
730 (add-hook 'gnus-summary-mode-hook 'gnus-grouplens-mode))
732 ;; Do the actual startup.
733 (gnus-setup-news nil level dont-connect)
734 (gnus-run-hooks 'gnus-setup-news-hook)
735 (gnus-start-draft-setup)
736 ;; Generate the group buffer.
737 (gnus-group-list-groups level)
738 (gnus-group-first-unread-group)
739 (gnus-configure-windows 'group)
740 (gnus-group-set-mode-line)
742 (set-language-info "Japanese" 'gnus-info "gnus-ja")
743 (gnus-run-hooks 'gnus-started-hook))))))
745 (defun gnus-start-draft-setup ()
746 "Make sure the draft group exists."
747 (gnus-request-create-group "drafts" '(nndraft ""))
748 (unless (gnus-gethash "nndraft:drafts" gnus-newsrc-hashtb)
749 (let ((gnus-level-default-subscribed 1))
750 (gnus-subscribe-group "nndraft:drafts" nil '(nndraft "")))
751 (gnus-group-set-parameter
752 "nndraft:drafts" 'gnus-dummy '((gnus-draft-mode)))))
755 (defun gnus-unload ()
756 "Unload all Gnus features."
758 (unless (boundp 'load-history)
759 (error "Sorry, `gnus-unload' is not implemented in this Emacs version"))
760 (let ((history load-history)
763 (and (string-match "^\\(gnus\\|nn\\)" (caar history))
764 (setq feature (cdr (assq 'provide (car history))))
765 (unload-feature feature 'force))
766 (setq history (cdr history)))))
773 (defvar gnus-dribble-ignore nil)
774 (defvar gnus-dribble-eval-file nil)
776 (defun gnus-dribble-file-name ()
777 "Return the dribble file for the current .newsrc."
779 (if gnus-dribble-directory
780 (concat (file-name-as-directory gnus-dribble-directory)
781 (file-name-nondirectory gnus-current-startup-file))
782 gnus-current-startup-file)
785 (defun gnus-dribble-enter (string)
786 "Enter STRING into the dribble buffer."
787 (when (and (not gnus-dribble-ignore)
789 (buffer-name gnus-dribble-buffer))
790 (let ((obuf (current-buffer)))
791 (set-buffer gnus-dribble-buffer)
792 (goto-char (point-max))
794 (set-window-point (get-buffer-window (current-buffer)) (point-max))
795 (bury-buffer gnus-dribble-buffer)
797 (set-buffer gnus-group-buffer)
798 (gnus-group-set-mode-line))
801 (defun gnus-dribble-touch ()
802 "Touch the dribble buffer."
803 (gnus-dribble-enter ""))
805 (defun gnus-dribble-read-file ()
806 "Read the dribble file from disk."
807 (let ((dribble-file (gnus-dribble-file-name)))
809 (set-buffer (setq gnus-dribble-buffer
810 (gnus-get-buffer-create
811 (file-name-nondirectory dribble-file))))
813 (setq buffer-file-name dribble-file)
815 (buffer-disable-undo)
816 (bury-buffer (current-buffer))
817 (set-buffer-modified-p nil)
818 (let ((auto (make-auto-save-file-name))
819 (gnus-dribble-ignore t)
821 (when (or (file-exists-p auto) (file-exists-p dribble-file))
822 ;; Load whichever file is newest -- the auto save file
823 ;; or the "real" file.
824 (if (file-newer-than-file-p auto dribble-file)
825 (nnheader-insert-file-contents auto)
826 (nnheader-insert-file-contents dribble-file))
827 (unless (zerop (buffer-size))
828 (set-buffer-modified-p t))
829 ;; Set the file modes to reflect the .newsrc file modes.
831 (when (and (file-exists-p gnus-current-startup-file)
832 (file-exists-p dribble-file)
833 (setq modes (file-modes gnus-current-startup-file)))
834 (set-file-modes dribble-file modes))
835 ;; Possibly eval the file later.
836 (when (or gnus-always-read-dribble-file
838 "Gnus auto-save file exists. Do you want to read it? "))
839 (setq gnus-dribble-eval-file t)))))))
841 (defun gnus-dribble-eval-file ()
842 (when gnus-dribble-eval-file
843 (setq gnus-dribble-eval-file nil)
845 (let ((gnus-dribble-ignore t))
846 (set-buffer gnus-dribble-buffer)
847 (eval-buffer (current-buffer))))))
849 (defun gnus-dribble-delete-file ()
850 (when (file-exists-p (gnus-dribble-file-name))
851 (delete-file (gnus-dribble-file-name)))
852 (when gnus-dribble-buffer
854 (set-buffer gnus-dribble-buffer)
855 (let ((auto (make-auto-save-file-name)))
856 (when (file-exists-p auto)
859 (set-buffer-modified-p nil)))))
861 (defun gnus-dribble-save ()
862 (when (and gnus-dribble-buffer
863 (buffer-name gnus-dribble-buffer))
865 (set-buffer gnus-dribble-buffer)
868 (defun gnus-dribble-clear ()
869 (when (gnus-buffer-exists-p gnus-dribble-buffer)
871 (set-buffer gnus-dribble-buffer)
873 (set-buffer-modified-p nil)
874 (setq buffer-saved-size (buffer-size)))))
878 ;;; Active & Newsrc File Handling
881 (defun gnus-setup-news (&optional rawfile level dont-connect)
882 "Setup news information.
883 If RAWFILE is non-nil, the .newsrc file will also be read.
884 If LEVEL is non-nil, the news will be set up at level LEVEL."
886 (let ((init (not (and gnus-newsrc-alist gnus-active-hashtb (not rawfile))))
887 ;; Binding this variable will inhibit multiple fetchings
888 ;; of the same mail source.
889 (nnmail-fetched-sources (list t)))
892 ;; Clear some variables to re-initialize news information.
893 (setq gnus-newsrc-alist nil
894 gnus-active-hashtb nil)
895 ;; Read the newsrc file and create `gnus-newsrc-hashtb'.
896 (gnus-read-newsrc-file rawfile))
898 ;; Make sure the archive server is available to all and sundry.
899 (when gnus-message-archive-method
900 (setq gnus-server-alist (delq (assoc "archive" gnus-server-alist)
902 (push (cons "archive" gnus-message-archive-method)
905 ;; If we don't read the complete active file, we fill in the
907 (when (or (null gnus-read-active-file)
908 (eq gnus-read-active-file 'some))
909 (gnus-update-active-hashtb-from-killed))
911 ;; Read the active file and create `gnus-active-hashtb'.
912 ;; If `gnus-read-active-file' is nil, then we just create an empty
913 ;; hash table. The partial filling out of the hash table will be
914 ;; done in `gnus-get-unread-articles'.
915 (and gnus-read-active-file
917 (gnus-read-active-file nil dont-connect))
919 (unless gnus-active-hashtb
920 (setq gnus-active-hashtb (gnus-make-hashtable 4096)))
922 ;; Initialize the cache.
926 ;; Possibly eval the dribble file.
928 (or gnus-use-dribble-file gnus-slave)
929 (gnus-dribble-eval-file))
931 ;; Slave Gnusii should then clear the dribble buffer.
932 (when (and init gnus-slave)
933 (gnus-dribble-clear))
935 (gnus-update-format-specifications)
937 ;; See whether we need to read the description file.
938 (when (and (boundp 'gnus-group-line-format)
939 (let ((case-fold-search nil))
940 (string-match "%[-,0-9]*D" gnus-group-line-format))
941 (not gnus-description-hashtb)
943 gnus-read-active-file)
944 (gnus-read-all-descriptions-files))
946 ;; Find new newsgroups and treat them.
947 (when (and init gnus-check-new-newsgroups (not level)
948 (gnus-check-server gnus-select-method)
951 (gnus-find-new-newsgroups))
953 ;; We might read in new NoCeM messages here.
954 (when (and gnus-use-nocem
957 (gnus-nocem-scan-groups))
959 ;; Read any slave files.
960 (gnus-master-read-slave-newsrc)
962 ;; Find the number of unread articles in each non-dead group.
963 (let ((gnus-read-active-file (and (not level) gnus-read-active-file)))
964 (gnus-get-unread-articles level))
966 (when (and init gnus-check-bogus-newsgroups
967 gnus-read-active-file (not level)
968 (gnus-server-opened gnus-select-method))
969 (gnus-check-bogus-newsgroups))))
971 (defun gnus-find-new-newsgroups (&optional arg)
972 "Search for new newsgroups and add them.
973 Each new newsgroup will be treated with `gnus-subscribe-newsgroup-method'.
974 The `-n' option line from .newsrc is respected.
976 With 1 C-u, use the `ask-server' method to query the server for new
978 With 2 C-u's, use most complete method possible to query the server
979 for new groups, and subscribe the new groups as zombies."
981 (let* ((gnus-subscribe-newsgroup-method
982 gnus-subscribe-newsgroup-method)
984 ((or (and (= (or arg 1) 4)
985 (not (listp gnus-check-new-newsgroups)))
986 (null gnus-read-active-file)
987 (eq gnus-read-active-file 'some))
990 (setq gnus-subscribe-newsgroup-method
991 'gnus-subscribe-zombies)
993 (t gnus-check-new-newsgroups))))
994 (unless (gnus-check-first-time-used)
995 (if (or (consp check)
996 (eq check 'ask-server))
997 ;; Ask the server for new groups.
998 (gnus-ask-server-for-new-groups)
999 ;; Go through the active hashtb and look for new groups.
1001 group new-newsgroups)
1002 (gnus-message 5 "Looking for new newsgroups...")
1003 (unless gnus-have-read-active-file
1004 (gnus-read-active-file))
1005 (setq gnus-newsrc-last-checked-date (current-time-string))
1006 (unless gnus-killed-hashtb
1007 (gnus-make-hashtable-from-killed))
1008 ;; Go though every newsgroup in `gnus-active-hashtb' and compare
1009 ;; with `gnus-newsrc-hashtb' and `gnus-killed-hashtb'.
1012 (if (or (null (setq group (symbol-name sym)))
1014 (null (symbol-value sym))
1015 (gnus-gethash group gnus-killed-hashtb)
1016 (gnus-gethash group gnus-newsrc-hashtb))
1018 (let ((do-sub (gnus-matches-options-n group)))
1020 ((eq do-sub 'subscribe)
1021 (setq groups (1+ groups))
1022 (gnus-sethash group group gnus-killed-hashtb)
1023 (funcall gnus-subscribe-options-newsgroup-method group))
1024 ((eq do-sub 'ignore)
1027 (setq groups (1+ groups))
1028 (gnus-sethash group group gnus-killed-hashtb)
1029 (if gnus-subscribe-hierarchical-interactive
1030 (push group new-newsgroups)
1031 (funcall gnus-subscribe-newsgroup-method group)))))))
1033 (when new-newsgroups
1034 (gnus-subscribe-hierarchical-interactive new-newsgroups))
1036 (gnus-message 5 "%d new newsgroup%s arrived."
1037 groups (if (> groups 1) "s have" " has"))
1038 (gnus-message 5 "No new newsgroups.")))))))
1040 (defun gnus-matches-options-n (group)
1041 ;; Returns `subscribe' if the group is to be unconditionally
1042 ;; subscribed, `ignore' if it is to be ignored, and nil if there is
1043 ;; no match for the group.
1045 ;; First we check the two user variables.
1047 ((and gnus-options-subscribe
1048 (string-match gnus-options-subscribe group))
1050 ((and gnus-auto-subscribed-groups
1051 (string-match gnus-auto-subscribed-groups group))
1053 ((and gnus-options-not-subscribe
1054 (string-match gnus-options-not-subscribe group))
1056 ;; Then we go through the list that was retrieved from the .newsrc
1057 ;; file. This list has elements on the form
1058 ;; `(REGEXP . {ignore,subscribe})'. The first match found (the list
1059 ;; is in the reverse order of the options line) is returned.
1061 (let ((regs gnus-newsrc-options-n))
1063 (not (string-match (caar regs) group)))
1064 (setq regs (cdr regs)))
1065 (and regs (cdar regs))))))
1067 (defun gnus-ask-server-for-new-groups ()
1068 (let* ((date (or gnus-newsrc-last-checked-date (current-time-string)))
1069 (methods (cons gnus-select-method
1071 (when (gnus-archive-server-wanted-p)
1074 (and (consp gnus-check-new-newsgroups)
1075 gnus-check-new-newsgroups)
1076 gnus-secondary-select-methods))))
1078 (new-date (current-time-string))
1079 group new-newsgroups got-new method hashtb
1080 gnus-override-subscribe-method)
1081 (unless gnus-killed-hashtb
1082 (gnus-make-hashtable-from-killed))
1083 ;; Go through both primary and secondary select methods and
1084 ;; request new newsgroups.
1085 (while (setq method (gnus-server-get-method nil (pop methods)))
1086 (setq new-newsgroups nil
1087 gnus-override-subscribe-method method)
1088 (when (and (gnus-check-server method)
1089 (gnus-request-newgroups date method))
1092 hashtb (gnus-make-hashtable 100))
1093 (set-buffer nntp-server-buffer)
1094 ;; Enter all the new groups into a hashtable.
1095 (gnus-active-to-gnus-format method hashtb 'ignore))
1096 ;; Now all new groups from `method' are in `hashtb'.
1099 (if (or (null (setq group (symbol-name group-sym)))
1100 (not (boundp group-sym))
1101 (null (symbol-value group-sym))
1102 (gnus-gethash group gnus-newsrc-hashtb)
1103 (member group gnus-zombie-list)
1104 (member group gnus-killed-list))
1105 ;; The group is already known.
1107 ;; Make this group active.
1108 (when (symbol-value group-sym)
1109 (gnus-set-active group (symbol-value group-sym)))
1110 ;; Check whether we want it or not.
1111 (let ((do-sub (gnus-matches-options-n group)))
1113 ((eq do-sub 'subscribe)
1115 (gnus-sethash group group gnus-killed-hashtb)
1116 (funcall gnus-subscribe-options-newsgroup-method group))
1117 ((eq do-sub 'ignore)
1121 (gnus-sethash group group gnus-killed-hashtb)
1122 (if gnus-subscribe-hierarchical-interactive
1123 (push group new-newsgroups)
1124 (funcall gnus-subscribe-newsgroup-method group)))))))
1126 (when new-newsgroups
1127 (gnus-subscribe-hierarchical-interactive new-newsgroups)))
1129 (gnus-message 5 "%d new newsgroup%s arrived"
1130 groups (if (> groups 1) "s have" " has"))
1131 (gnus-message 5 "No new newsgroups"))
1133 (setq gnus-newsrc-last-checked-date new-date))
1136 (defun gnus-check-first-time-used ()
1138 (let ((files (list gnus-current-startup-file
1139 (concat gnus-current-startup-file ".el")
1140 (concat gnus-current-startup-file ".eld")
1142 (concat gnus-startup-file ".el")
1143 (concat gnus-startup-file ".eld"))))
1145 (when (file-exists-p (pop files))
1146 (throw 'ended nil))))
1147 (gnus-message 6 "First time user; subscribing you to default groups")
1148 (unless (gnus-read-active-file-p)
1149 (let ((gnus-read-active-file t))
1150 (gnus-read-active-file)))
1151 (setq gnus-newsrc-last-checked-date (current-time-string))
1152 (let ((groups gnus-default-subscribed-newsgroups)
1156 (setq groups (or groups gnus-backup-default-subscribed-newsgroups))
1159 (if (null (setq group (symbol-name sym)))
1161 (let ((do-sub (gnus-matches-options-n group)))
1163 ((eq do-sub 'subscribe)
1164 (gnus-sethash group group gnus-killed-hashtb)
1165 (funcall gnus-subscribe-options-newsgroup-method group))
1166 ((eq do-sub 'ignore)
1169 (push group gnus-killed-list))))))
1172 (when (gnus-active (car groups))
1173 (gnus-group-change-level
1174 (car groups) gnus-level-default-subscribed gnus-level-killed))
1175 (setq groups (cdr groups)))
1177 (set-buffer gnus-group-buffer)
1178 (gnus-group-make-help-group))
1179 (when gnus-novice-user
1180 (gnus-message 7 "`A k' to list killed groups"))))))
1183 (defun gnus-subscribe-group (group &optional previous method)
1184 "Subcribe GROUP and put it after PREVIOUS."
1185 (gnus-group-change-level
1187 (list t group gnus-level-default-subscribed nil nil method)
1189 gnus-level-default-subscribed gnus-level-killed previous t)
1192 ;; `gnus-group-change-level' is the fundamental function for changing
1193 ;; subscription levels of newsgroups. This might mean just changing
1194 ;; from level 1 to 2, which is pretty trivial, from 2 to 6 or back
1195 ;; again, which subscribes/unsubscribes a group, which is equally
1196 ;; trivial. Changing from 1-7 to 8-9 means that you kill a group, and
1197 ;; from 8-9 to 1-7 means that you remove the group from the list of
1198 ;; killed (or zombie) groups and add them to the (kinda) subscribed
1199 ;; groups. And last but not least, moving from 8 to 9 and 9 to 8,
1200 ;; which is trivial.
1201 ;; ENTRY can either be a string (newsgroup name) or a list (if
1202 ;; FROMKILLED is t, it's a list on the format (NUM INFO-LIST),
1203 ;; otherwise it's a list in the format of the `gnus-newsrc-hashtb'
1205 ;; LEVEL is the new level of the group, OLDLEVEL is the old level and
1206 ;; PREVIOUS is the group (in hashtb entry format) to insert this group
1208 (defun gnus-group-change-level (entry level &optional oldlevel
1209 previous fromkilled)
1210 (let (group info active num)
1211 ;; Glean what info we can from the arguments
1213 (if fromkilled (setq group (nth 1 entry))
1214 (setq group (car (nth 2 entry))))
1216 (when (and (stringp entry)
1218 (< oldlevel gnus-level-zombie))
1219 (setq entry (gnus-gethash entry gnus-newsrc-hashtb)))
1220 (if (and (not oldlevel)
1222 (setq oldlevel (gnus-info-level (nth 2 entry)))
1223 (setq oldlevel (or oldlevel gnus-level-killed)))
1224 (when (stringp previous)
1225 (setq previous (gnus-gethash previous gnus-newsrc-hashtb)))
1227 (if (and (>= oldlevel gnus-level-zombie)
1228 (gnus-gethash group gnus-newsrc-hashtb))
1229 ;; We are trying to subscribe a group that is already
1233 (unless (gnus-ephemeral-group-p group)
1235 (format "(gnus-group-change-level %S %S %S %S %S)"
1236 group level oldlevel (car (nth 2 previous)) fromkilled)))
1238 ;; Then we remove the newgroup from any old structures, if needed.
1239 ;; If the group was killed, we remove it from the killed or zombie
1240 ;; list. If not, and it is in fact going to be killed, we remove
1241 ;; it from the newsrc hash table and assoc.
1243 ((>= oldlevel gnus-level-zombie)
1244 (if (= oldlevel gnus-level-zombie)
1245 (setq gnus-zombie-list (delete group gnus-zombie-list))
1246 (setq gnus-killed-list (delete group gnus-killed-list))))
1248 (when (and (>= level gnus-level-zombie)
1250 (gnus-sethash (car (nth 2 entry)) nil gnus-newsrc-hashtb)
1252 (setcdr (gnus-gethash (car (nth 3 entry))
1255 (setcdr (cdr entry) (cdddr entry)))))
1257 ;; Finally we enter (if needed) the list where it is supposed to
1258 ;; go, and change the subscription level. If it is to be killed,
1259 ;; we enter it into the killed or zombie list.
1261 ((>= level gnus-level-zombie)
1262 ;; Remove from the hash table.
1263 (gnus-sethash group nil gnus-newsrc-hashtb)
1264 ;; We do not enter foreign groups into the list of dead
1266 (unless (gnus-group-foreign-p group)
1267 (if (= level gnus-level-zombie)
1268 (push group gnus-zombie-list)
1269 (push group gnus-killed-list))))
1271 ;; If the list is to be entered into the newsrc assoc, and
1272 ;; it was killed, we have to create an entry in the newsrc
1273 ;; hashtb format and fix the pointers in the newsrc assoc.
1274 (if (< oldlevel gnus-level-zombie)
1275 ;; It was alive, and it is going to stay alive, so we
1276 ;; just change the level and don't change any pointers or
1277 ;; hash table entries.
1278 (setcar (cdaddr entry) level)
1280 (setq info (cdr entry)
1282 (setq active (gnus-active group))
1284 (if active (- (1+ (cdr active)) (car active)) t))
1285 ;; Shorten the select method if possible, if we need to
1286 ;; store it at all (native groups).
1287 (let ((method (gnus-method-simplify
1288 (or gnus-override-subscribe-method
1289 (gnus-group-method group)))))
1291 (setq info (list group level nil nil method))
1292 (setq info (list group level nil)))))
1295 (let ((p gnus-newsrc-alist))
1299 (setq entry (cons info (cddr previous)))
1302 (setcdr (cdr previous) entry)
1303 (gnus-sethash group (cons num (cdr previous))
1304 gnus-newsrc-hashtb))
1305 (setcdr previous entry)
1306 (gnus-sethash group (cons num previous)
1307 gnus-newsrc-hashtb))
1309 (setcdr (gnus-gethash (caadr entry) gnus-newsrc-hashtb) entry))
1312 "(gnus-group-set-info '%S)" info)))))
1313 (when gnus-group-change-level-function
1314 (funcall gnus-group-change-level-function
1315 group level oldlevel previous)))))
1317 (defun gnus-kill-newsgroup (newsgroup)
1318 "Obsolete function. Kills a newsgroup."
1319 (gnus-group-change-level
1320 (gnus-gethash newsgroup gnus-newsrc-hashtb) gnus-level-killed))
1322 (defun gnus-check-bogus-newsgroups (&optional confirm)
1323 "Remove bogus newsgroups.
1324 If CONFIRM is non-nil, the user has to confirm the deletion of every
1326 (let ((newsrc (cdr gnus-newsrc-alist))
1327 bogus group entry info)
1328 (gnus-message 5 "Checking bogus newsgroups...")
1329 (unless (gnus-read-active-file-p)
1330 (gnus-read-active-file t))
1331 (when (gnus-read-active-file-p)
1332 ;; Find all bogus newsgroup that are subscribed.
1334 (setq info (pop newsrc)
1335 group (gnus-info-group info))
1336 (unless (or (gnus-active group) ; Active
1337 (gnus-info-method info)) ; Foreign
1338 ;; Found a bogus newsgroup.
1339 (push group bogus)))
1342 "Remove bogus group %s? "
1344 ;; Remove all bogus subscribed groups by first killing them, and
1345 ;; then removing them from the list of killed groups.
1346 (when (setq entry (gnus-gethash group gnus-newsrc-hashtb))
1347 (gnus-group-change-level entry gnus-level-killed)
1348 (setq gnus-killed-list (delete group gnus-killed-list))))
1349 bogus '("group" "groups" "remove"))
1350 (while (setq group (pop bogus))
1351 ;; Remove all bogus subscribed groups by first killing them, and
1352 ;; then removing them from the list of killed groups.
1353 (when (setq entry (gnus-gethash group gnus-newsrc-hashtb))
1354 (gnus-group-change-level entry gnus-level-killed)
1355 (setq gnus-killed-list (delete group gnus-killed-list)))))
1356 ;; Then we remove all bogus groups from the list of killed and
1357 ;; zombie groups. They are removed without confirmation.
1358 (let ((dead-lists '(gnus-killed-list gnus-zombie-list))
1361 (setq killed (symbol-value (car dead-lists)))
1363 (unless (gnus-active (setq group (pop killed)))
1364 ;; The group is bogus.
1366 (set (car dead-lists)
1367 (delete group (symbol-value (car dead-lists))))))
1368 (setq dead-lists (cdr dead-lists))))
1369 (gnus-run-hooks 'gnus-check-bogus-groups-hook)
1370 (gnus-message 5 "Checking bogus newsgroups...done"))))
1372 (defun gnus-check-duplicate-killed-groups ()
1373 "Remove duplicates from the list of killed groups."
1375 (let ((killed gnus-killed-list))
1377 (gnus-message 9 "%d" (length killed))
1378 (setcdr killed (delete (car killed) (cdr killed)))
1379 (setq killed (cdr killed)))))
1381 ;; We want to inline a function from gnus-cache, so we cheat here:
1383 (defvar gnus-cache-active-hashtb)
1384 (defun gnus-cache-possibly-alter-active (group active)
1385 "Alter the ACTIVE info for GROUP to reflect the articles in the cache."
1386 (when gnus-cache-active-hashtb
1387 (let ((cache-active (gnus-gethash group gnus-cache-active-hashtb)))
1389 (when (< (car cache-active) (car active))
1390 (setcar active (car cache-active)))
1391 (when (> (cdr cache-active) (cdr active))
1392 (setcdr active (cdr cache-active))))))))
1394 (defun gnus-activate-group (group &optional scan dont-check method)
1395 ;; Check whether a group has been activated or not.
1396 ;; If SCAN, request a scan of that group as well.
1397 (let ((method (or method (inline (gnus-find-method-for-group group))))
1399 (and (inline (gnus-check-server method))
1400 ;; We escape all bugs and quit here to make it possible to
1401 ;; continue if a group is so out-there that it reports bugs
1405 (gnus-check-backend-function 'request-scan (car method))
1406 (gnus-request-scan group method))
1409 (inline (gnus-request-group group dont-check method))
1412 (setq active (gnus-parse-active))
1413 ;; If there are no articles in the group, the GROUP
1414 ;; command may have responded with the `(0 . 0)'. We
1415 ;; ignore this if we already have an active entry
1417 (if (and (zerop (car active))
1418 (zerop (cdr active))
1419 (gnus-active group))
1421 (gnus-set-active group active)
1422 ;; Return the new active info.
1425 (defun gnus-get-unread-articles-in-group (info active &optional update)
1427 ;; Allow the backend to update the info in the group.
1429 (gnus-request-update-info
1430 info (inline (gnus-find-method-for-group
1431 (gnus-info-group info)))))
1432 (gnus-activate-group (gnus-info-group info) nil t))
1434 (let* ((range (gnus-info-read info))
1436 ;; If a cache is present, we may have to alter the active info.
1437 (when (and gnus-use-cache info)
1438 (inline (gnus-cache-possibly-alter-active
1439 (gnus-info-group info) active)))
1440 ;; Modify the list of read articles according to what articles
1441 ;; are available; then tally the unread articles and add the
1442 ;; number to the group hash table entry.
1444 ((zerop (cdr active))
1447 (setq num (- (1+ (cdr active)) (car active))))
1448 ((not (listp (cdr range)))
1449 ;; Fix a single (num . num) range according to the
1450 ;; active hash table.
1451 ;; Fix by Carsten Bormann <cabo@Informatik.Uni-Bremen.DE>.
1452 (and (< (cdr range) (car active)) (setcdr range (1- (car active))))
1453 (and (> (cdr range) (cdr active)) (setcdr range (cdr active)))
1454 ;; Compute number of unread articles.
1455 (setq num (max 0 (- (cdr active) (- (1+ (cdr range)) (car range))))))
1457 ;; The read list is a list of ranges. Fix them according to
1458 ;; the active hash table.
1459 ;; First peel off any elements that are below the lower
1461 (while (and (cdr range)
1463 (or (and (atom (cadr range)) (cadr range))
1465 (if (numberp (car range))
1468 (or (and (numberp (cadr range))
1472 (or (and (numberp (nth 1 range)) (nth 1 range))
1474 (setcdr range (cddr range)))
1475 ;; Adjust the first element to be the same as the lower limit.
1476 (when (and (not (atom (car range)))
1477 (< (cdar range) (car active)))
1478 (setcdr (car range) (1- (car active))))
1479 ;; Then we want to peel off any elements that are higher
1480 ;; than the upper active limit.
1481 (let ((srange range))
1482 ;; Go past all valid elements.
1483 (while (and (cdr srange)
1484 (<= (or (and (atom (cadr srange))
1488 (setq srange (cdr srange)))
1490 ;; Nuke all remaining invalid elements.
1491 (setcdr srange nil))
1493 ;; Adjust the final element.
1494 (when (and (not (atom (car srange)))
1495 (> (cdar srange) (cdr active)))
1496 (setcdr (car srange) (cdr active))))
1497 ;; Compute the number of unread articles.
1499 (setq num (+ num (- (1+ (or (and (atom (car range)) (car range))
1501 (or (and (atom (car range)) (car range))
1503 (setq range (cdr range)))
1504 (setq num (max 0 (- (cdr active) num)))))
1505 ;; Set the number of unread articles.
1507 (setcar (gnus-gethash (gnus-info-group info) gnus-newsrc-hashtb) num))
1510 ;; Go though `gnus-newsrc-alist' and compare with `gnus-active-hashtb'
1511 ;; and compute how many unread articles there are in each group.
1512 (defun gnus-get-unread-articles (&optional level)
1513 (let* ((newsrc (cdr gnus-newsrc-alist))
1514 (level (or level gnus-activate-level (1+ gnus-level-subscribed)))
1517 (cond ((and gnus-activate-foreign-newsgroups
1518 (not (numberp gnus-activate-foreign-newsgroups)))
1519 (1+ gnus-level-subscribed))
1520 ((numberp gnus-activate-foreign-newsgroups)
1521 gnus-activate-foreign-newsgroups)
1524 scanned-methods info group active method retrievegroups)
1525 (gnus-message 5 "Checking new news...")
1528 (setq active (gnus-active (setq group (gnus-info-group
1529 (setq info (pop newsrc))))))
1531 ;; Check newsgroups. If the user doesn't want to check them, or
1532 ;; they can't be checked (for instance, if the news server can't
1533 ;; be reached) we just set the number of unread articles in this
1534 ;; newsgroup to t. This means that Gnus thinks that there are
1535 ;; unread articles, but it has no idea how many.
1537 ;; To be more explicit:
1538 ;; >0 for an active group with messages
1539 ;; 0 for an active group with no unread messages
1540 ;; nil for non-foreign groups that the user has requested not be checked
1541 ;; t for unchecked foreign groups or bogus groups, or groups that can't
1542 ;; be checked, for one reason or other.
1543 (if (and (setq method (gnus-info-method info))
1547 (setq method (gnus-server-get-method nil method)))))
1548 (not (gnus-secondary-method-p method)))
1549 ;; These groups are foreign. Check the level.
1550 (when (<= (gnus-info-level info) foreign-level)
1551 (setq active (gnus-activate-group group 'scan))
1552 ;; Let the Gnus agent save the active file.
1553 (when (and gnus-agent gnus-plugged active)
1554 (gnus-agent-save-group-info
1555 method (gnus-group-real-name group) active))
1556 (unless (inline (gnus-virtual-group-p group))
1557 (inline (gnus-close-group group)))
1558 (when (fboundp (intern (concat (symbol-name (car method))
1559 "-request-update-info")))
1560 (inline (gnus-request-update-info info method))))
1561 ;; These groups are native or secondary.
1563 ;; We don't want these groups.
1564 ((> (gnus-info-level info) level)
1565 (setq active 'ignore))
1567 ((not gnus-read-active-file)
1568 (if (gnus-check-backend-function 'retrieve-groups group)
1569 ;; if server support gnus-retrieve-groups we push
1570 ;; the group onto retrievegroups for later checking
1571 (if (assoc method retrievegroups)
1572 (setcdr (assoc method retrievegroups)
1573 (cons group (cdr (assoc method retrievegroups))))
1574 (push (list method group) retrievegroups))
1575 ;; hack: `nnmail-get-new-mail' changes the mail-source depending
1576 ;; on the group, so we must perform a scan for every group
1577 ;; if the users has any directory mail sources.
1578 (if (and (null (assq 'directory
1580 (if (listp nnmail-spool-file)
1582 (list nnmail-spool-file)))))
1583 (member method scanned-methods))
1584 (setq active (gnus-activate-group group))
1585 (setq active (gnus-activate-group group 'scan))
1586 (push method scanned-methods))
1587 (inline (gnus-close-group group))))))
1589 ;; Get the number of unread articles in the group.
1591 ((eq active 'ignore)
1592 ;; Don't do anything.
1595 (inline (gnus-get-unread-articles-in-group info active t)))
1597 ;; The group couldn't be reached, so we nix out the number of
1598 ;; unread articles and stuff.
1599 (gnus-set-active group nil)
1600 (let ((tmp (gnus-gethash group gnus-newsrc-hashtb)))
1601 (if tmp (setcar tmp t))))))
1603 ;; iterate through groups on methods which support gnus-retrieve-groups
1604 ;; and fetch a partial active file and use it to find new news.
1605 (while retrievegroups
1606 (let* ((mg (pop retrievegroups))
1607 (method (or (car mg) gnus-select-method))
1609 (gnus-check-server method)
1610 ;; Request that the backend scan its incoming messages.
1611 (when (gnus-check-backend-function 'request-scan (car method))
1612 (gnus-request-scan nil method))
1613 (gnus-read-active-file-2 (mapcar (lambda (group)
1614 (gnus-group-real-name group))
1616 (dolist (group groups)
1618 ((setq active (gnus-active (gnus-info-group
1619 (setq info (gnus-get-info group)))))
1620 (inline (gnus-get-unread-articles-in-group info active t)))
1622 ;; The group couldn't be reached, so we nix out the number of
1623 ;; unread articles and stuff.
1624 (gnus-set-active group nil)
1625 (setcar (gnus-gethash group gnus-newsrc-hashtb) t))))))
1627 (gnus-message 5 "Checking new news...done")))
1629 ;; Create a hash table out of the newsrc alist. The `car's of the
1630 ;; alist elements are used as keys.
1631 (defun gnus-make-hashtable-from-newsrc-alist ()
1632 (let ((alist gnus-newsrc-alist)
1633 (ohashtb gnus-newsrc-hashtb)
1635 (setq gnus-newsrc-hashtb (gnus-make-hashtable (length alist)))
1637 (setq prev (setq gnus-newsrc-alist
1638 (if (equal (caar gnus-newsrc-alist)
1641 (cons (list "dummy.group" 0 nil) alist)))))
1645 ;; Preserve number of unread articles in groups.
1646 (cons (and ohashtb (car (gnus-gethash (caar alist) ohashtb)))
1650 alist (cdr alist)))))
1652 (defun gnus-make-hashtable-from-killed ()
1653 "Create a hash table from the killed and zombie lists."
1654 (let ((lists '(gnus-killed-list gnus-zombie-list))
1656 (setq gnus-killed-hashtb
1657 (gnus-make-hashtable
1658 (+ (length gnus-killed-list) (length gnus-zombie-list))))
1660 (setq list (symbol-value (pop lists)))
1662 (gnus-sethash (car list) (pop list) gnus-killed-hashtb)))))
1664 (defun gnus-parse-active ()
1665 "Parse active info in the nntp server buffer."
1667 (set-buffer nntp-server-buffer)
1668 (goto-char (point-min))
1669 ;; Parse the result we got from `gnus-request-group'.
1670 (when (looking-at "[0-9]+ [0-9]+ \\([0-9]+\\) [0-9]+")
1671 (goto-char (match-beginning 1))
1672 (cons (read (current-buffer))
1673 (read (current-buffer))))))
1675 (defun gnus-make-articles-unread (group articles)
1676 "Mark ARTICLES in GROUP as unread."
1677 (let* ((info (nth 2 (or (gnus-gethash group gnus-newsrc-hashtb)
1678 (gnus-gethash (gnus-group-real-name group)
1679 gnus-newsrc-hashtb))))
1680 (ranges (gnus-info-read info))
1683 (when (gnus-member-of-range
1684 (setq article (pop articles)) ranges)
1685 (push article news)))
1688 info (gnus-remove-from-range (gnus-info-read info) (nreverse news)))
1689 (gnus-group-update-group group t))))
1691 ;; Enter all dead groups into the hashtb.
1692 (defun gnus-update-active-hashtb-from-killed ()
1693 (let ((hashtb (setq gnus-active-hashtb (gnus-make-hashtable 4096)))
1694 (lists (list gnus-killed-list gnus-zombie-list))
1697 (setq killed (car lists))
1699 (gnus-sethash (car killed) nil hashtb)
1700 (setq killed (cdr killed)))
1701 (setq lists (cdr lists)))))
1703 (defun gnus-get-killed-groups ()
1704 "Go through the active hashtb and mark all unknown groups as killed."
1705 ;; First make sure active file has been read.
1706 (unless (gnus-read-active-file-p)
1707 (let ((gnus-read-active-file t))
1708 (gnus-read-active-file)))
1709 (unless gnus-killed-hashtb
1710 (gnus-make-hashtable-from-killed))
1711 ;; Go through all newsgroups that are known to Gnus - enlarge kill list.
1715 (group (symbol-name sym)))
1716 (if (or (null group)
1717 (gnus-gethash group gnus-killed-hashtb)
1718 (gnus-gethash group gnus-newsrc-hashtb))
1720 (let ((do-sub (gnus-matches-options-n group)))
1721 (if (or (eq do-sub 'subscribe) (eq do-sub 'ignore))
1723 (setq groups (1+ groups))
1724 (push group gnus-killed-list)
1725 (gnus-sethash group group gnus-killed-hashtb))))))
1727 (gnus-dribble-touch))
1729 ;; Get the active file(s) from the backend(s).
1730 (defun gnus-read-active-file (&optional force not-native)
1731 (gnus-group-set-mode-line)
1734 (lambda (m) (if (stringp m) (gnus-server-get-method nil m) m))
1736 (if (and (not not-native)
1737 (gnus-check-server gnus-select-method))
1738 ;; The native server is available.
1739 (cons gnus-select-method gnus-secondary-select-methods)
1740 ;; The native server is down, so we just do the
1742 gnus-secondary-select-methods)
1743 ;; Also read from the archive server.
1744 (when (gnus-archive-server-wanted-p)
1745 (list "archive")))))
1747 (setq gnus-have-read-active-file nil)
1749 (set-buffer nntp-server-buffer)
1750 (while (setq method (pop methods))
1751 ;; Only do each method once, in case the methods appear more
1752 ;; than once in this list.
1753 (unless (member method methods)
1755 (gnus-read-active-file-1 method force)
1756 ;; We catch C-g so that we can continue past servers
1757 ;; that do not respond.
1760 (defun gnus-read-active-file-1 (method force)
1762 (setq where (nth 1 method)
1763 mesg (format "Reading active file%s via %s..."
1764 (if (and where (not (zerop (length where))))
1765 (concat " from " where) "")
1767 (gnus-message 5 mesg)
1768 (when (gnus-check-server method)
1769 ;; Request that the backend scan its incoming messages.
1770 (when (gnus-check-backend-function 'request-scan (car method))
1771 (gnus-request-scan nil method))
1773 ((and (eq gnus-read-active-file 'some)
1774 (gnus-check-backend-function 'retrieve-groups (car method))
1776 (let ((newsrc (cdr gnus-newsrc-alist))
1777 (gmethod (gnus-server-get-method nil method))
1779 (while (setq info (pop newsrc))
1783 (gnus-find-method-for-group
1784 (gnus-info-group info) info))
1786 (push (gnus-group-real-name (gnus-info-group info))
1788 (gnus-read-active-file-2 groups method)))
1792 (if (not (gnus-request-list method))
1793 (unless (equal method gnus-message-archive-method)
1794 (gnus-error 1 "Cannot read active file from %s server"
1796 (gnus-message 5 mesg)
1797 (gnus-active-to-gnus-format method gnus-active-hashtb nil t)
1798 ;; We mark this active file as read.
1799 (push method gnus-have-read-active-file)
1800 (gnus-message 5 "%sdone" mesg)))))))
1802 (defun gnus-read-active-file-2 (groups method)
1803 "Read an active file for GROUPS in METHOD using gnus-retrieve-groups."
1806 (set-buffer nntp-server-buffer)
1807 (gnus-check-server method)
1808 (let ((list-type (gnus-retrieve-groups groups method)))
1809 (cond ((not list-type)
1811 1.2 "Cannot read partial active file from %s server."
1813 ((eq list-type 'active)
1814 (gnus-active-to-gnus-format method gnus-active-hashtb nil t))
1816 (gnus-groups-to-gnus-format method gnus-active-hashtb t)))))))
1818 ;; Read an active file and place the results in `gnus-active-hashtb'.
1819 (defun gnus-active-to-gnus-format (&optional method hashtb ignore-errors
1822 (setq method gnus-select-method))
1823 (let ((cur (current-buffer))
1825 (if (and gnus-active-hashtb
1826 (not (equal method gnus-select-method)))
1828 (setq gnus-active-hashtb
1829 (if (equal method gnus-select-method)
1830 (gnus-make-hashtable
1831 (count-lines (point-min) (point-max)))
1832 (gnus-make-hashtable 4096)))))))
1833 ;; Delete unnecessary lines.
1834 (goto-char (point-min))
1836 ((string= gnus-ignored-newsgroups "")
1837 (delete-matching-lines "^to\\."))
1839 (delete-matching-lines (concat "^to\\.\\|" gnus-ignored-newsgroups))))
1841 (goto-char (point-min))
1842 (unless (re-search-forward "[\\\"]" nil t)
1843 ;; Make the group names readable as a lisp expression even if they
1844 ;; contain special characters.
1845 (goto-char (point-max))
1846 (while (re-search-backward "[][';?()#]" nil t)
1849 ;; Let the Gnus agent save the active file.
1850 (when (and gnus-agent real-active gnus-plugged)
1851 (gnus-agent-save-active method))
1853 ;; If these are groups from a foreign select method, we insert the
1854 ;; group prefix in front of the group names.
1855 (when (not (gnus-server-equal
1856 (gnus-server-get-method nil method)
1857 (gnus-server-get-method nil gnus-select-method)))
1858 (let ((prefix (gnus-group-prefixed-name "" method)))
1859 (goto-char (point-min))
1860 (while (and (not (eobp))
1862 (when (= (following-char) ?\")
1865 (zerop (forward-line 1)))))))
1866 ;; Store the active file in a hash table.
1867 (goto-char (point-min))
1868 (let (group max min)
1872 (narrow-to-region (point) (gnus-point-at-eol))
1873 ;; group gets set to a symbol interned in the hash table
1874 ;; (what a hack!!) - jwz
1875 (setq group (let ((obarray hashtb)) (read cur)))
1876 ;; ### The extended group name scheme makes
1877 ;; the previous optimization strategy sort of pointless...
1878 (when (stringp group)
1879 (setq group (intern group hashtb)))
1880 (if (and (numberp (setq max (read cur)))
1881 (numberp (setq min (read cur)))
1883 (skip-chars-forward " \t")
1885 (or (eq (char-after) ?=)
1886 (eq (char-after) ?x)
1887 (eq (char-after) ?j)))))
1889 (set group (cons min max))
1890 ;; if group is moderated, stick in moderation table
1891 (when (eq (char-after) ?m)
1892 (unless gnus-moderated-hashtb
1893 (setq gnus-moderated-hashtb (gnus-make-hashtable)))
1894 (gnus-sethash (symbol-name group) t
1895 gnus-moderated-hashtb)))
1901 (unless ignore-errors
1902 (gnus-message 3 "Warning - invalid active: %s"
1904 (gnus-point-at-bol) (gnus-point-at-eol))))))
1906 (forward-line 1)))))
1908 (defun gnus-groups-to-gnus-format (method &optional hashtb real-active)
1909 ;; Parse a "groups" active file.
1910 (let ((cur (current-buffer))
1912 (if (and method gnus-active-hashtb)
1914 (setq gnus-active-hashtb
1915 (gnus-make-hashtable
1916 (count-lines (point-min) (point-max)))))))
1918 (not (gnus-server-equal
1919 (gnus-server-get-method nil method)
1920 (gnus-server-get-method nil gnus-select-method)))
1921 (gnus-group-prefixed-name "" method))))
1923 ;; Let the Gnus agent save the active file.
1924 (if (and gnus-agent real-active gnus-plugged (gnus-agent-method-p method))
1926 (gnus-agent-save-groups method)
1927 (gnus-active-to-gnus-format method hashtb nil real-active))
1929 (goto-char (point-min))
1930 ;; We split this into to separate loops, one with the prefix
1931 ;; and one without to speed the reading up somewhat.
1933 (let (min max opoint group)
1937 (read cur) (read cur)
1938 (setq min (read cur)
1941 (skip-chars-forward " \t")
1944 (set (let ((obarray hashtb)) (read cur))
1946 (error (and group (symbolp group) (set group nil))))
1948 (let (min max group)
1951 (when (eq (char-after) ?2)
1952 (read cur) (read cur)
1953 (setq min (read cur)
1955 (set (setq group (let ((obarray hashtb)) (read cur)))
1957 (error (and group (symbolp group) (set group nil))))
1958 (forward-line 1)))))))
1960 (defun gnus-read-newsrc-file (&optional force)
1962 If FORCE is non-nil, the .newsrc file is read."
1963 ;; Reset variables that might be defined in the .newsrc.eld file.
1964 (gnus-clear-quick-file-variables)
1965 (let* ((newsrc-file gnus-current-startup-file)
1966 (quick-file (concat newsrc-file ".el")))
1968 ;; We always load the .newsrc.eld file. If always contains
1969 ;; much information that can not be gotten from the .newsrc
1970 ;; file (ticked articles, killed groups, foreign methods, etc.)
1971 (gnus-read-newsrc-el-file quick-file)
1973 (when (and gnus-read-newsrc-file
1974 (file-exists-p gnus-current-startup-file)
1976 (and (file-newer-than-file-p newsrc-file quick-file)
1977 (file-newer-than-file-p newsrc-file
1978 (concat quick-file "d")))
1979 (not gnus-newsrc-alist)))
1980 ;; We read the .newsrc file. Note that if there if a
1981 ;; .newsrc.eld file exists, it has already been read, and
1982 ;; the `gnus-newsrc-hashtb' has been created. While reading
1983 ;; the .newsrc file, Gnus will only use the information it
1984 ;; can find there for changing the data already read -
1985 ;; i. e., reading the .newsrc file will not trash the data
1986 ;; already read (except for read articles).
1988 (gnus-message 5 "Reading %s..." newsrc-file)
1989 (set-buffer (nnheader-find-file-noselect newsrc-file))
1990 (buffer-disable-undo)
1991 (gnus-newsrc-to-gnus-format)
1992 (kill-buffer (current-buffer))
1993 (gnus-message 5 "Reading %s...done" newsrc-file))))))
1995 (defun gnus-read-newsrc-el-file (file)
1996 (let ((ding-file (concat file "d")))
1997 ;; We always, always read the .eld file.
1998 (gnus-message 5 "Reading %s..." ding-file)
1999 (let (gnus-newsrc-assoc)
2000 (when (file-exists-p ding-file)
2004 (insert-file-contents-as-coding-system
2005 gnus-startup-file-coding-system ding-file)
2006 (eval-region (point-min) (point-max)))
2009 (or (not (or (zerop (buffer-size))
2010 (eq 'binary gnus-startup-file-coding-system)
2011 (gnus-re-read-newsrc-el-file ding-file)))
2013 (format "Error in %s; continue? " ding-file))
2014 (error "Error in %s" ding-file)))))
2015 (when gnus-newsrc-assoc
2016 (setq gnus-newsrc-alist gnus-newsrc-assoc))))
2017 (gnus-make-hashtable-from-newsrc-alist)
2018 (when (file-newer-than-file-p file ding-file)
2019 ;; Old format quick file
2020 (gnus-message 5 "Reading %s..." file)
2021 ;; The .el file is newer than the .eld file, so we read that one
2023 (gnus-read-old-newsrc-el-file file)))
2024 (when (and gnus-product-directory
2025 (file-directory-p gnus-product-directory))
2026 (let ((list gnus-product-variable-file-list))
2028 (apply 'gnus-product-read-variable-file-1 (car list))
2029 (setq list (cdr list))))))
2031 (defun gnus-re-read-newsrc-el-file (file)
2032 "Attempt to re-read .newsrc.eld file. Returns `nil' if successful.
2033 The backup file \".newsrc.eld_\" will be created before re-reading."
2034 (message "Error in %s; retrying..." file)
2037 (let ((backup (concat file "_")))
2038 (copy-file file backup 'ok-if-already-exists 'keep-time)
2039 (message " (The backup file %s has been created)" backup)
2043 (insert-file-contents-as-binary file nil nil nil 'replace)
2044 (when (re-search-forward
2045 "^[\t ]*([\t\n\r ]*setq[\t\n\r ]+gnus-format-specs" nil t)
2046 (delete-region (goto-char (match-beginning 0)) (forward-list 1))
2047 (decode-coding-region (point-min) (point-max)
2048 gnus-startup-file-coding-system)
2051 (eval-region (point-min) (point-max))
2056 (message "Error in %s; retrying...done" file))
2057 (message "Error in %s; retrying...failed" file)
2060 (defun gnus-product-read-variable-file-1 (file checking-methods coding
2062 (let (gnus-product-file-version method file-ver)
2063 (if (or (condition-case err
2064 (let ((coding-system-for-read coding)
2065 (input-coding-system coding))
2066 (load (expand-file-name file gnus-product-directory) t t t)
2068 (error (message "%s" err)))
2069 (and (assq 'emacs-version checking-methods)
2070 (not (string= emacs-version
2071 (cdr (assq 'emacs-version
2072 gnus-product-file-version)))))
2073 (and (setq method (assq 'product-version checking-methods))
2074 (or (not (setq file-ver
2075 (cdr (assq 'product-version
2076 gnus-product-file-version))))
2077 (< (product-version-compare file-ver (cadr method)) 0))))
2079 (set (car variables) nil)
2080 (gnus-product-variable-touch (car variables))
2081 (setq variables (cdr variables))))))
2083 ;; Parse the old-style quick startup file
2084 (defun gnus-read-old-newsrc-el-file (file)
2085 (let (newsrc killed marked group m info)
2087 (let ((gnus-killed-assoc nil)
2088 gnus-marked-assoc gnus-newsrc-alist gnus-newsrc-assoc)
2092 (setq newsrc gnus-newsrc-assoc
2093 killed gnus-killed-assoc
2094 marked gnus-marked-assoc)))
2095 (setq gnus-newsrc-alist nil)
2096 (while (setq group (pop newsrc))
2097 (if (setq info (gnus-get-info (car group)))
2099 (gnus-info-set-read info (cddr group))
2100 (gnus-info-set-level
2101 info (if (nth 1 group) gnus-level-default-subscribed
2102 gnus-level-default-unsubscribed))
2103 (push info gnus-newsrc-alist))
2106 (if (nth 1 group) gnus-level-default-subscribed
2107 gnus-level-default-unsubscribed)
2110 ;; Copy marks into info.
2111 (when (setq m (assoc (car group) marked))
2112 (unless (nthcdr 3 info)
2113 (nconc info (list nil)))
2114 (gnus-info-set-marks
2115 info (list (cons 'tick (gnus-compress-sequence
2116 (sort (cdr m) '<) t))))))
2117 (setq newsrc killed)
2119 (setcar newsrc (caar newsrc))
2120 (setq newsrc (cdr newsrc)))
2121 (setq gnus-killed-list killed))
2122 ;; The .el file version of this variable does not begin with
2123 ;; "options", while the .eld version does, so we just add it if it
2127 (when (not (string-match "^ *options" gnus-newsrc-options))
2128 (setq gnus-newsrc-options (concat "options " gnus-newsrc-options)))
2129 (when (not (string-match "\n$" gnus-newsrc-options))
2130 (setq gnus-newsrc-options (concat gnus-newsrc-options "\n")))
2131 ;; Finally, if we read some options lines, we parse them.
2132 (unless (string= gnus-newsrc-options "")
2133 (gnus-newsrc-parse-options gnus-newsrc-options)))
2135 (setq gnus-newsrc-alist (nreverse gnus-newsrc-alist))
2136 (gnus-make-hashtable-from-newsrc-alist)))
2138 (defun gnus-make-newsrc-file (file)
2139 "Make server dependent file name by catenating FILE and server host name."
2140 (let* ((file (expand-file-name file nil))
2141 (real-file (concat file "-" (nth 1 gnus-select-method))))
2142 (if (or (file-exists-p real-file)
2143 (file-exists-p (concat real-file ".el"))
2144 (file-exists-p (concat real-file ".eld")))
2148 (defun gnus-newsrc-to-gnus-format ()
2149 (setq gnus-newsrc-options "")
2150 (setq gnus-newsrc-options-n nil)
2152 (unless gnus-active-hashtb
2153 (setq gnus-active-hashtb (gnus-make-hashtable 4096)))
2154 (let ((buf (current-buffer))
2155 (already-read (> (length gnus-newsrc-alist) 1))
2156 group subscribed options-symbol newsrc Options-symbol
2158 (goto-char (point-min))
2159 ;; We intern the symbol `options' in the active hashtb so that we
2160 ;; can `eq' against it later.
2161 (set (setq options-symbol (intern "options" gnus-active-hashtb)) nil)
2162 (set (setq Options-symbol (intern "Options" gnus-active-hashtb)) nil)
2165 ;; We first read the first word on the line by narrowing and
2166 ;; then reading into `gnus-active-hashtb'. Most groups will
2167 ;; already exist in that hashtb, so this will save some string
2171 (progn (skip-chars-forward "^ \t!:\n") (point)))
2172 (goto-char (point-min))
2174 (and (/= (point-min) (point-max))
2175 (let ((obarray gnus-active-hashtb)) (read buf))))
2177 ;; Now, the symbol we have read is either `options' or a group
2178 ;; name. If it is an options line, we just add it to a string.
2180 ((or (eq symbol options-symbol)
2181 (eq symbol Options-symbol))
2182 (setq gnus-newsrc-options
2183 ;; This concating is quite inefficient, but since our
2184 ;; thorough studies show that approx 99.37% of all
2185 ;; .newsrc files only contain a single options line, we
2186 ;; don't give a damn, frankly, my dear.
2187 (concat gnus-newsrc-options
2190 ;; Options may continue on the next line.
2191 (or (and (re-search-forward "^[^ \t]" nil 'move)
2192 (progn (beginning-of-line) (point)))
2196 ;; Group names can be just numbers.
2197 (when (numberp symbol)
2198 (setq symbol (intern (int-to-string symbol) gnus-active-hashtb)))
2199 (unless (boundp symbol)
2201 ;; It was a group name.
2202 (setq subscribed (eq (char-after) ?:)
2203 group (symbol-name symbol)
2206 ;; If the line ends here, this is clearly a buggy line, so
2207 ;; we put point a the beginning of line and let the cond
2208 ;; below do the error handling.
2210 ;; We skip to the beginning of the ranges.
2211 (skip-chars-forward "!: \t"))
2212 ;; We are now at the beginning of the list of read articles.
2213 ;; We read them range by range.
2216 ((looking-at "[0-9]+")
2217 ;; We narrow and read a number instead of buffer-substring/
2218 ;; string-to-int because it's faster. narrow/widen is
2219 ;; faster than save-restriction/narrow, and save-restriction
2220 ;; produces a garbage object.
2222 (narrow-to-region (match-beginning 0) (match-end 0))
2225 ;; If the next character is a dash, then this is a range.
2226 (if (eq (char-after) ?-)
2228 ;; We read the upper bound of the range.
2230 (if (not (looking-at "[0-9]+"))
2231 ;; This is a buggy line, by we pretend that
2232 ;; it's kinda OK. Perhaps the user should be
2238 (narrow-to-region (match-beginning 0)
2243 ;; It was just a simple number, so we add it to the
2246 ;; If the next char in ?\n, then we have reached the end
2247 ;; of the line and return nil.
2248 (not (eq (char-after) ?\n)))
2249 ((eq (char-after) ?\n)
2250 ;; End of line, so we end.
2253 ;; Not numbers and not eol, so this might be a buggy
2256 ;; If it was eob instead of ?\n, we allow it.
2257 ;; The line was buggy.
2259 (gnus-error 3.1 "Mangled line: %s"
2260 (buffer-substring (gnus-point-at-bol)
2261 (gnus-point-at-eol))))
2263 ;; Skip past ", ". Spaces are invalid in these ranges, but
2264 ;; we allow them, because it's a common mistake to put a
2265 ;; space after the comma.
2266 (skip-chars-forward ", "))
2268 ;; We have already read .newsrc.eld, so we gently update the
2269 ;; data in the hash table with the information we have just
2272 (let ((info (gnus-get-info group))
2275 ;; There is an entry for this file in the alist.
2277 (gnus-info-set-read info (nreverse reads))
2278 ;; We update the level very gently. In fact, we
2279 ;; only change it if there's been a status change
2280 ;; from subscribed to unsubscribed, or vice versa.
2281 (setq level (gnus-info-level info))
2282 (cond ((and (<= level gnus-level-subscribed)
2284 (setq level (if reads
2285 gnus-level-default-unsubscribed
2286 (1+ gnus-level-default-unsubscribed))))
2287 ((and (> level gnus-level-subscribed) subscribed)
2288 (setq level gnus-level-default-subscribed)))
2289 (gnus-info-set-level info level))
2290 ;; This is a new group.
2291 (setq info (list group
2293 gnus-level-default-subscribed
2295 (1+ gnus-level-subscribed)
2296 gnus-level-default-unsubscribed))
2298 (push info newsrc)))))
2301 (setq newsrc (nreverse newsrc))
2303 (if (not already-read)
2305 ;; We now have two newsrc lists - `newsrc', which is what we
2306 ;; have read from .newsrc, and `gnus-newsrc-alist', which is
2307 ;; what we've read from .newsrc.eld. We have to merge these
2308 ;; lists. We do this by "attaching" any (foreign) groups in the
2309 ;; gnus-newsrc-alist to the (native) group that precedes them.
2310 (let ((rc (cdr gnus-newsrc-alist))
2311 (prev gnus-newsrc-alist)
2314 (or (null (nth 4 (car rc))) ; It's a native group.
2315 (assoc (caar rc) newsrc) ; It's already in the alist.
2316 (if (setq entry (assoc (caar prev) newsrc))
2317 (setcdr (setq mentry (memq entry newsrc))
2318 (cons (car rc) (cdr mentry)))
2319 (push (car rc) newsrc)))
2323 (setq gnus-newsrc-alist newsrc)
2324 ;; We make the newsrc hashtb.
2325 (gnus-make-hashtable-from-newsrc-alist)
2327 ;; Finally, if we read some options lines, we parse them.
2328 (unless (string= gnus-newsrc-options "")
2329 (gnus-newsrc-parse-options gnus-newsrc-options))))
2331 ;; Parse options lines to find "options -n !all rec.all" and stuff.
2332 ;; The return value will be a list on the form
2333 ;; ((regexp1 . ignore)
2334 ;; (regexp2 . subscribe)...)
2335 ;; When handling new newsgroups, groups that match a `ignore' regexp
2336 ;; will be ignored, and groups that match a `subscribe' regexp will be
2337 ;; subscribed. A line like
2338 ;; options -n !all rec.all
2339 ;; will lead to a list that looks like
2340 ;; (("^rec\\..+" . subscribe)
2341 ;; ("^.+" . ignore))
2342 ;; So all "rec.*" groups will be subscribed, while all the other
2343 ;; groups will be ignored. Note that "options -n !all rec.all" is very
2344 ;; different from "options -n rec.all !all".
2345 (defun gnus-newsrc-parse-options (options)
2348 (gnus-set-work-buffer)
2349 (insert (regexp-quote options))
2350 ;; First we treat all continuation lines.
2351 (goto-char (point-min))
2352 (while (re-search-forward "\n[ \t]+" nil t)
2353 (replace-match " " t t))
2354 ;; Then we transform all "all"s into ".+"s.
2355 (goto-char (point-min))
2356 (while (re-search-forward "\\ball\\b" nil t)
2357 (replace-match ".+" t t))
2358 (goto-char (point-min))
2359 ;; We remove all other options than the "-n" ones.
2360 (while (re-search-forward "[ \t]-[^n][^-]*" nil t)
2363 (goto-char (point-min))
2365 ;; We are only interested in "options -n" lines - we
2366 ;; ignore the other option lines.
2367 (while (re-search-forward "[ \t]-n" nil t)
2370 (and (re-search-forward "[ \t]-n" (gnus-point-at-eol) t)
2372 (gnus-point-at-eol)))
2373 ;; Search for all "words"...
2374 (while (re-search-forward "[^ \t,\n]+" eol t)
2375 (if (eq (char-after (match-beginning 0)) ?!)
2376 ;; If the word begins with a bang (!), this is a "not"
2377 ;; spec. We put this spec (minus the bang) and the
2378 ;; symbol `ignore' into the list.
2380 "^" (buffer-substring
2381 (1+ (match-beginning 0))
2386 ;; There was no bang, so this is a "yes" spec.
2387 (push (cons (concat "^" (match-string 0) "\\($\\|\\.\\)")
2391 (setq gnus-newsrc-options-n out))))
2393 (defun gnus-save-newsrc-file (&optional force)
2394 "Save .newsrc file."
2395 ;; Note: We cannot save .newsrc file if all newsgroups are removed
2396 ;; from the variable gnus-newsrc-alist.
2397 (when (and (or gnus-newsrc-alist gnus-killed-list)
2398 gnus-current-startup-file)
2400 (if (and (or gnus-use-dribble-file gnus-slave)
2402 (or (not gnus-dribble-buffer)
2403 (not (buffer-name gnus-dribble-buffer))
2404 (zerop (save-excursion
2405 (set-buffer gnus-dribble-buffer)
2407 (gnus-message 4 "(No changes need to be saved)")
2408 (gnus-run-hooks 'gnus-save-newsrc-hook)
2410 (gnus-slave-save-newsrc)
2412 (when gnus-save-newsrc-file
2413 (gnus-message 8 "Saving %s..." gnus-current-startup-file)
2414 (gnus-gnus-to-newsrc-format)
2415 (gnus-message 8 "Saving %s...done" gnus-current-startup-file))
2416 ;; Save .newsrc.eld.
2417 (set-buffer (gnus-get-buffer-create " *Gnus-newsrc*"))
2418 (make-local-variable 'version-control)
2419 (setq version-control 'never)
2420 (setq buffer-file-name
2421 (concat gnus-current-startup-file ".eld"))
2422 (setq default-directory (file-name-directory buffer-file-name))
2423 (buffer-disable-undo)
2425 (gnus-message 5 "Saving %s.eld..." gnus-current-startup-file)
2426 (gnus-gnus-to-quick-newsrc-format)
2427 (gnus-run-hooks 'gnus-save-quick-newsrc-hook)
2428 (save-buffer-as-coding-system gnus-startup-file-coding-system)
2429 (kill-buffer (current-buffer))
2431 5 "Saving %s.eld...done" gnus-current-startup-file))
2432 (gnus-dribble-delete-file)
2433 (gnus-group-set-mode-line))))
2434 (when gnus-product-directory
2435 (gnus-product-save-variable-file)))
2437 ;; Call the function above at C-x C-c.
2438 (defadvice save-buffers-kill-emacs (before save-gnus-newsrc-file-maybe
2439 activate preactivate)
2440 "Save .newsrc and .newsrc.eld when Emacs is killed."
2441 (when (gnus-alive-p)
2442 (gnus-run-hooks 'gnus-exit-gnus-hook)
2443 (gnus-offer-save-summaries)
2444 (gnus-save-newsrc-file)))
2446 (defun gnus-gnus-to-quick-newsrc-format ()
2447 "Insert Gnus variables such as gnus-newsrc-alist in lisp format."
2448 (let ((print-quoted t)
2449 (print-escape-newlines t))
2451 (insert ";; -*- emacs-lisp -*-\n")
2452 (insert ";; Gnus startup file.\n")
2454 ;; Never delete this file -- if you want to force Gnus to read the
2455 ;; .newsrc file (if you have one), touch .newsrc instead.\n")
2456 (insert "(setq gnus-newsrc-file-version "
2457 (prin1-to-string gnus-version) ")\n")
2458 (let* ((gnus-killed-list
2459 (if (and gnus-save-killed-list
2460 (stringp gnus-save-killed-list))
2461 (gnus-strip-killed-list)
2464 (if gnus-save-killed-list gnus-variable-list
2465 ;; Remove the `gnus-killed-list' from the list of variables
2466 ;; to be saved, if required.
2467 (delq 'gnus-killed-list (copy-sequence gnus-variable-list))))
2468 ;; Peel off the "dummy" group.
2469 (gnus-newsrc-alist (cdr gnus-newsrc-alist))
2471 ;; Insert the variables into the file.
2473 (when (and (boundp (setq variable (pop variables)))
2474 (symbol-value variable))
2475 (insert "(setq " (symbol-name variable) " '")
2476 (gnus-prin1 (symbol-value variable))
2479 (defun gnus-product-variable-touch (variable)
2480 (put variable 'gnus-product-variable 'dirty))
2482 (defun gnus-product-variables-dirty-p (variables)
2485 (when (eq (get (car variables) 'gnus-product-variable) 'dirty)
2487 (setq variables (cdr variables)))))
2489 (defun gnus-product-save-variable-file (&optional force)
2490 "Save all product variables to files, when need to be saved."
2491 (let ((list gnus-product-variable-file-list))
2492 (gnus-make-directory gnus-product-directory)
2494 (apply 'gnus-product-save-variable-file-1 force (car list))
2495 (setq list (cdr list)))))
2497 (defun gnus-product-save-variable-file-1 (force file checking-methods coding
2499 "Save a product variable file, when need to be saved."
2501 (gnus-product-variables-dirty-p variables))
2502 (let ((product (product-find 'gnus-vers)))
2503 (set-buffer (gnus-get-buffer-create " *gnus-product*"))
2504 (make-local-variable 'version-control)
2505 (setq version-control 'never)
2506 (setq file (expand-file-name file gnus-product-directory)
2507 buffer-file-name file
2508 default-directory (file-name-directory file))
2509 (buffer-disable-undo)
2511 (gnus-message 5 "Saving %s..." file)
2512 (apply 'gnus-product-quick-file-format product checking-methods coding
2514 (save-buffer-as-coding-system coding)
2515 (kill-buffer (current-buffer))
2517 (put (car variables) 'gnus-product-variable nil)
2518 (setq variables (cdr variables)))
2520 5 "Saving %s...done" file))))
2522 (defun gnus-product-quick-file-format (product checking-methods
2523 coding &rest variables)
2524 "Insert gnus product depend variables in lisp format."
2525 (let ((print-quoted t)
2526 (print-escape-newlines t)
2528 (insert (format ";; -*- Mode: emacs-lisp; coding: %s -*-\n" coding))
2529 (insert (format ";; %s startup file.\n" (product-name product)))
2530 (when (setq param (cdr (assq 'product-version checking-methods)))
2531 (insert "(or (>= (product-version-compare "
2532 "(product-version (product-find 'gnus-vers))\n"
2533 "\t\t\t\t '" (apply 'prin1-to-string param) ")\n"
2535 " (error \"This file was created by later version of "
2537 (insert "(setq gnus-product-file-version \n"
2538 " '((product-version . "
2539 (prin1-to-string (product-version product)) ")\n"
2540 "\t(emacs-version . " (prin1-to-string emacs-version) ")))\n")
2542 (when (and (boundp (setq variable (pop variables)))
2543 (symbol-value variable))
2544 (insert "(setq " (symbol-name variable) " '")
2545 (gnus-prin1 (symbol-value variable))
2548 (defun gnus-strip-killed-list ()
2549 "Return the killed list minus the groups that match `gnus-save-killed-list'."
2550 (let ((list gnus-killed-list)
2553 (when (string-match gnus-save-killed-list (car list))
2554 (push (car list) olist))
2558 (defun gnus-gnus-to-newsrc-format ()
2559 ;; Generate and save the .newsrc file.
2561 (set-buffer (create-file-buffer gnus-current-startup-file))
2562 (let ((newsrc (cdr gnus-newsrc-alist))
2563 (standard-output (current-buffer))
2564 info ranges range method)
2565 (setq buffer-file-name gnus-current-startup-file)
2566 (setq default-directory (file-name-directory buffer-file-name))
2567 (buffer-disable-undo)
2570 (when gnus-newsrc-options
2571 (insert gnus-newsrc-options))
2572 ;; Write subscribed and unsubscribed.
2573 (while (setq info (pop newsrc))
2574 ;; Don't write foreign groups to .newsrc.
2575 (when (or (null (setq method (gnus-info-method info)))
2576 (equal method "native")
2577 (inline (gnus-server-equal method gnus-select-method)))
2578 (insert (gnus-info-group info)
2579 (if (> (gnus-info-level info) gnus-level-subscribed)
2581 (when (setq ranges (gnus-info-read info))
2583 (if (not (listp (cdr ranges)))
2584 (if (= (car ranges) (cdr ranges))
2585 (princ (car ranges))
2586 (princ (car ranges))
2588 (princ (cdr ranges)))
2589 (while (setq range (pop ranges))
2590 (if (or (atom range) (= (car range) (cdr range)))
2591 (princ (or (and (atom range) range) (car range)))
2594 (princ (cdr range)))
2598 (make-local-variable 'version-control)
2599 (setq version-control 'never)
2600 ;; It has been reported that sometime the modtime on the .newsrc
2601 ;; file seems to be off. We really do want to overwrite it, so
2602 ;; we clear the modtime here before saving. It's a bit odd,
2604 ;; sometimes the modtime clear isn't sufficient. most brute force:
2605 ;; delete the silly thing entirely first. but this fails to provide
2606 ;; such niceties as .newsrc~ creation.
2607 (if gnus-modtime-botch
2608 (delete-file gnus-startup-file)
2609 (clear-visited-file-modtime))
2610 (gnus-run-hooks 'gnus-save-standard-newsrc-hook)
2612 (kill-buffer (current-buffer)))))
2616 ;;; Slave functions.
2619 (defvar gnus-slave-mode nil)
2621 (defun gnus-slave-mode ()
2622 "Minor mode for slave Gnusae."
2623 (gnus-add-minor-mode 'gnus-slave-mode " Slave" (make-sparse-keymap))
2624 (gnus-run-hooks 'gnus-slave-mode-hook))
2626 (defun gnus-slave-save-newsrc ()
2628 (set-buffer gnus-dribble-buffer)
2630 (make-temp-name (concat gnus-current-startup-file "-slave-")))
2631 (modes (ignore-errors
2632 (file-modes (concat gnus-current-startup-file ".eld")))))
2633 (gnus-write-buffer slave-name)
2635 (set-file-modes slave-name modes)))))
2637 (defun gnus-master-read-slave-newsrc ()
2640 (file-name-directory gnus-current-startup-file)
2644 (file-name-nondirectory gnus-current-startup-file)
2648 (if (not slave-files)
2649 () ; There are no slave files to read.
2650 (gnus-message 7 "Reading slave newsrcs...")
2652 (set-buffer (gnus-get-buffer-create " *gnus slave*"))
2654 (sort (mapcar (lambda (file)
2655 (list (nth 5 (file-attributes file)) file))
2658 (or (< (caar f1) (caar f2))
2659 (< (nth 1 (car f1)) (nth 1 (car f2)))))))
2662 (setq file (nth 1 (car slave-files)))
2663 (insert-file-contents file)
2664 (when (condition-case ()
2666 (eval-buffer (current-buffer))
2669 (gnus-error 3.2 "Possible error in %s" file)
2671 (unless gnus-slave ; Slaves shouldn't delete these files.
2673 (delete-file file))))
2674 (setq slave-files (cdr slave-files))))
2675 (gnus-dribble-touch)
2676 (gnus-message 7 "Reading slave newsrcs...done"))))
2680 ;;; Group description.
2683 (defun gnus-read-all-descriptions-files ()
2684 (let ((methods (cons gnus-select-method
2686 (when (gnus-archive-server-wanted-p)
2688 gnus-secondary-select-methods))))
2690 (gnus-read-descriptions-file (car methods))
2691 (setq methods (cdr methods)))
2694 (defun gnus-read-descriptions-file (&optional method)
2695 (let ((method (or method gnus-select-method))
2697 (when (stringp method)
2698 (setq method (gnus-server-to-method method)))
2699 ;; We create the hashtable whether we manage to read the desc file
2700 ;; to avoid trying to re-read after a failed read.
2701 (unless gnus-description-hashtb
2702 (setq gnus-description-hashtb
2703 (gnus-make-hashtable (length gnus-active-hashtb))))
2704 ;; Mark this method's desc file as read.
2705 (gnus-sethash (gnus-group-prefixed-name "" method) "Has read"
2706 gnus-description-hashtb)
2708 (gnus-message 5 "Reading descriptions file via %s..." (car method))
2710 ((null (gnus-get-function method 'request-list-newsgroups t))
2712 ((not (gnus-check-server method))
2713 (gnus-message 1 "Couldn't open server")
2715 ((not (gnus-request-list-newsgroups method))
2716 (gnus-message 1 "Couldn't read newsgroups descriptions")
2721 (set-buffer nntp-server-buffer)
2722 (goto-char (point-min))
2723 (when (or (search-forward "\n.\n" nil t)
2724 (goto-char (point-max)))
2726 (narrow-to-region (point-min) (point)))
2727 ;; If these are groups from a foreign select method, we insert the
2728 ;; group prefix in front of the group names.
2729 (and method (not (inline
2731 (gnus-server-get-method nil method)
2732 (gnus-server-get-method
2733 nil gnus-select-method))))
2734 (let ((prefix (gnus-group-prefixed-name "" method)))
2735 (goto-char (point-min))
2736 (while (and (not (eobp))
2737 (progn (insert prefix)
2738 (zerop (forward-line 1)))))))
2739 (goto-char (point-min))
2741 ;; If we get an error, we set group to 0, which is not a
2745 (let ((obarray gnus-description-hashtb))
2746 ;; Group is set to a symbol interned in this
2748 (read nntp-server-buffer))
2750 (skip-chars-forward " \t")
2751 ;; ... which leads to this line being effectively ignored.
2752 (when (symbolp group)
2753 (let ((str (buffer-substring
2754 (point) (progn (end-of-line) (point))))
2756 (and (or gnus-xemacs
2757 (and (boundp 'enable-multibyte-characters)
2758 enable-multibyte-characters))
2759 (fboundp 'gnus-mule-get-coding-system)
2760 (gnus-mule-get-coding-system (symbol-name group)))))
2762 (setq str (decode-coding-string str (car coding))))
2765 (gnus-message 5 "Reading descriptions file...done")
2768 (defun gnus-group-get-description (group)
2769 "Get the description of a group by sending XGTITLE to the server."
2770 (when (gnus-request-group-description group)
2772 (set-buffer nntp-server-buffer)
2773 (goto-char (point-min))
2774 (when (looking-at "[^ \t]+[ \t]+\\(.*\\)")
2775 (match-string 1)))))
2778 (defun gnus-declare-backend (name &rest abilities)
2779 "Declare backend NAME with ABILITIES as a Gnus backend."
2780 (setq gnus-valid-select-methods
2781 (nconc gnus-valid-select-methods
2782 (list (apply 'list name abilities)))))
2784 (defun gnus-set-default-directory ()
2785 "Set the default directory in the current buffer to `gnus-default-directory'.
2786 If this variable is nil, don't do anything."
2787 (setq default-directory
2788 (if (and gnus-default-directory
2789 (file-exists-p gnus-default-directory))
2790 (file-name-as-directory (expand-file-name gnus-default-directory))
2791 default-directory)))
2793 (provide 'gnus-start)
2795 ;;; gnus-start.el ends here