xemacs-beta: lisp/gnus/gnus-start.el comparison

comparison lisp/gnus/gnus-start.el @ 98:0d2f883870bc r20-1b1

Import from CVS: tag r20-1b1

author	cvs
date	Mon, 13 Aug 2007 09:13:56 +0200
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children	4be1180a9e89

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-:498bf5da1c90
+:0d2f883870bc
+;;; gnus-start.el --- startup functions for Gnus
+;; Copyright (C) 1996,97 Free Software Foundation, Inc.
+;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
+;; Keywords: news
+;; This file is part of GNU Emacs.
+;; GNU Emacs is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2, or (at your option)
+;; any later version.
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+;; GNU General Public License for more details.
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs; see the file COPYING.  If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+;;; Commentary:
+;;; Code:
+(require 'gnus)
+(require 'gnus-win)
+(require 'gnus-int)
+(require 'gnus-spec)
+(require 'gnus-range)
+(require 'gnus-util)
+(require 'message)
+(defcustom gnus-startup-file "~/.newsrc"
+"Your `.newsrc' file.
+`.newsrc-SERVER' will be used instead if that exists."
+:group 'gnus-start
+:type 'file)
+(defcustom gnus-init-file "~/.gnus"
+"Your Gnus elisp startup file.
+If a file with the .el or .elc suffixes exist, it will be read
+instead."
+:group 'gnus-start
+:type 'file)
+(defcustom gnus-site-init-file
+(ignore-errors
+(concat (file-name-directory
+	     (directory-file-name installation-directory))
+	    "site-lisp/gnus-init"))
+"The site-wide Gnus elisp startup file.
+If a file with the .el or .elc suffixes exist, it will be read
+instead."
+:group 'gnus-start
+:type 'file)
+(defcustom gnus-default-subscribed-newsgroups nil
+"This variable lists what newsgroups should be subscribed the first time Gnus is used.
+It should be a list of strings.
+If it is `t', Gnus will not do anything special the first time it is
+started; it'll just use the normal newsgroups subscription methods."
+:group 'gnus-start
+:type '(repeat string))
+(defcustom gnus-use-dribble-file t
+"*Non-nil means that Gnus will use a dribble file to store user updates.
+If Emacs should crash without saving the .newsrc files, complete
+information can be restored from the dribble file."
+:group 'gnus-start
+:type 'boolean)
+(defcustom gnus-dribble-directory nil
+"*The directory where dribble files will be saved.
+If this variable is nil, the directory where the .newsrc files are
+saved will be used."
+:group 'gnus-start
+:type '(choice directory (const nil)))
+(defcustom gnus-check-new-newsgroups t
+"*Non-nil means that Gnus will run gnus-find-new-newsgroups at startup.
+This normally finds new newsgroups by comparing the active groups the
+servers have already reported with those Gnus already knows, either alive
+or killed.
+When any of the following are true, gnus-find-new-newsgroups will instead
+ask the servers (primary, secondary, and archive servers) to list new
+groups since the last time it checked:
+1. This variable is `ask-server'.
+2. This variable is a list of select methods (see below).
+3. `gnus-read-active-file' is nil or `some'.
+4. A prefix argument is given to gnus-find-new-newsgroups interactively.
+Thus, if this variable is `ask-server' or a list of select methods or
+`gnus-read-active-file' is nil or `some', then the killed list is no
+longer necessary, so you could safely set `gnus-save-killed-list' to nil.
+This variable can be a list of select methods which Gnus will query with
+the `ask-server' method in addition to the primary, secondary, and archive
+servers.
+Eg.
+(setq gnus-check-new-newsgroups
+	'((nntp \"some.server\") (nntp \"other.server\")))
+If this variable is nil, then you have to tell Gnus explicitly to
+check for new newsgroups with \\<gnus-group-mode-map>\\[gnus-find-new-newsgroups]."
+:group 'gnus-start
+:type '(choice (const :tag "no" nil)
+		 (const :tag "by brute force" t)
+		 (const :tag "ask servers" ask-server)
+		 (repeat :menu-tag "ask additional servers"
+			 :tag "ask additional servers"
+			 :value ((nntp ""))
+			 (sexp :format "%v"))))
+(defcustom gnus-check-bogus-newsgroups nil
+"*Non-nil means that Gnus will check and remove bogus newsgroup at startup.
+If this variable is nil, then you have to tell Gnus explicitly to
+check for bogus newsgroups with \\<gnus-group-mode-map>\\[gnus-group-check-bogus-groups]."
+:group 'gnus-start
+:type 'boolean)
+(defcustom gnus-read-active-file t
+"*Non-nil means that Gnus will read the entire active file at startup.
+If this variable is nil, Gnus will only know about the groups in your
+`.newsrc' file.
+If this variable is `some', Gnus will try to only read the relevant
+parts of the active file from the server.  Not all servers support
+this, and it might be quite slow with other servers, but this should
+generally be faster than both the t and nil value.
+If you set this variable to nil or `some', you probably still want to
+be told about new newsgroups that arrive.  To do that, set
+`gnus-check-new-newsgroups' to `ask-server'.  This may not work
+properly with all servers."
+:group 'gnus-start
+:type '(choice (const nil)
+		 (const some)
+		 (const t)))
+(defcustom gnus-level-subscribed 5
+"*Groups with levels less than or equal to this variable are subscribed."
+:group 'gnus-start
+:type 'integer)
+(defcustom gnus-level-unsubscribed 7
+"*Groups with levels less than or equal to this variable are unsubscribed.
+Groups with levels less than `gnus-level-subscribed', which should be
+less than this variable, are subscribed."
+:group 'gnus-start
+:type 'integer)
+(defcustom gnus-level-zombie 8
+"*Groups with this level are zombie groups."
+:group 'gnus-start
+:type 'integer)
+(defcustom gnus-level-killed 9
+"*Groups with this level are killed."
+:group 'gnus-start
+:type 'integer)
+(defcustom gnus-level-default-subscribed 3
+"*New subscribed groups will be subscribed at this level."
+:group 'gnus-start
+:type 'integer)
+(defcustom gnus-level-default-unsubscribed 6
+"*New unsubscribed groups will be unsubscribed at this level."
+:group 'gnus-start
+:type 'integer)
+(defcustom gnus-activate-level (1+ gnus-level-subscribed)
+"*Groups higher than this level won't be activated on startup.
+Setting this variable to something low might save lots of time when
+you have many groups that you aren't interested in."
+:group 'gnus-start
+:type 'integer)
+(defcustom gnus-activate-foreign-newsgroups 4
+"*If nil, Gnus will not check foreign newsgroups at startup.
+If it is non-nil, it should be a number between one and nine.  Foreign
+newsgroups that have a level lower or equal to this number will be
+activated on startup.  For instance, if you want to active all
+subscribed newsgroups, but not the rest, you'd set this variable to
+`gnus-level-subscribed'.
+If you subscribe to lots of newsgroups from different servers, startup
+might take a while.  By setting this variable to nil, you'll save time,
+but you won't be told how many unread articles there are in the
+groups."
+:group 'gnus-start
+:type 'integer)
+(defcustom gnus-save-newsrc-file t
+"*Non-nil means that Gnus will save the `.newsrc' file.
+Gnus always saves its own startup file, which is called
+\".newsrc.eld\".  The file called \".newsrc\" is in a format that can
+be readily understood by other newsreaders.  If you don't plan on
+using other newsreaders, set this variable to nil to save some time on
+exit."
+:group 'gnus-start
+:type 'boolean)
+(defcustom gnus-save-killed-list t
+"*If non-nil, save the list of killed groups to the startup file.
+If you set this variable to nil, you'll save both time (when starting
+and quitting) and space (both memory and disk), but it will also mean
+that Gnus has no record of which groups are new and which are old, so
+the automatic new newsgroups subscription methods become meaningless.
+You should always set `gnus-check-new-newsgroups' to `ask-server' or
+nil if you set this variable to nil.
+This variable can also be a regexp.  In that case, all groups that do
+not match this regexp will be removed before saving the list."
+:group 'gnus-start
+:type 'boolean)
+(defcustom gnus-ignored-newsgroups
+(purecopy (mapconcat 'identity
+		       '("^to\\."	; not "real" groups
+			 "^[0-9. \t]+ " ; all digits in name
+			 "[][\"#'()]"	; bogus characters
+			 )
+		       "\\|"))
+"A regexp to match uninteresting newsgroups in the active file.
+Any lines in the active file matching this regular expression are
+removed from the newsgroup list before anything else is done to it,
+thus making them effectively non-existent."
+:group 'gnus-start
+:type 'regexp)
+(defcustom gnus-subscribe-newsgroup-method 'gnus-subscribe-zombies
+"*Function called with a group name when new group is detected.
+A few pre-made functions are supplied: `gnus-subscribe-randomly'
+inserts new groups at the beginning of the list of groups;
+`gnus-subscribe-alphabetically' inserts new groups in strict
+alphabetic order; `gnus-subscribe-hierarchically' inserts new groups
+in hierarchical newsgroup order; `gnus-subscribe-interactively' asks
+for your decision; `gnus-subscribe-killed' kills all new groups;
+`gnus-subscribe-zombies' will make all new groups into zombies."
+:group 'gnus-start
+:type '(radio (function-item gnus-subscribe-randomly)
+		(function-item gnus-subscribe-alphabetically)
+		(function-item gnus-subscribe-hierarchically)
+		(function-item gnus-subscribe-interactively)
+		(function-item gnus-subscribe-killed)
+		(function-item gnus-subscribe-zombies)
+		function))
+;; Suggested by a bug report by Hallvard B Furuseth.
+;; <h.b.furuseth@usit.uio.no>.
+(defcustom gnus-subscribe-options-newsgroup-method
+'gnus-subscribe-alphabetically
+"*This function is called to subscribe newsgroups mentioned on \"options -n\" lines.
+If, for instance, you want to subscribe to all newsgroups in the
+\"no\" and \"alt\" hierarchies, you'd put the following in your
+.newsrc file:
+options -n no.all alt.all
+Gnus will the subscribe all new newsgroups in these hierarchies with
+the subscription method in this variable."
+:group 'gnus-start
+:type '(radio (function-item gnus-subscribe-randomly)
+		(function-item gnus-subscribe-alphabetically)
+		(function-item gnus-subscribe-hierarchically)
+		(function-item gnus-subscribe-interactively)
+		(function-item gnus-subscribe-killed)
+		(function-item gnus-subscribe-zombies)
+		function))
+(defcustom gnus-subscribe-hierarchical-interactive nil
+"*If non-nil, Gnus will offer to subscribe hierarchically.
+When a new hierarchy appears, Gnus will ask the user:
+'alt.binaries': Do you want to subscribe to this hierarchy? ([d]ys):
+If the user pressed `d', Gnus will descend the hierarchy, `y' will
+subscribe to all newsgroups in the hierarchy and `s' will skip this
+hierarchy in its entirety."
+:group 'gnus-start
+:type 'boolean)
+(defcustom gnus-auto-subscribed-groups
+"^nnml\\|^nnfolder\\|^nnmbox\\|^nnmh\\|^nnbabyl"
+"*All new groups that match this regexp will be subscribed automatically.
+Note that this variable only deals with new groups.  It has no effect
+whatsoever on old groups.
+New groups that match this regexp will not be handled by
+`gnus-subscribe-newsgroup-method'.  Instead, they will
+be subscribed using `gnus-subscribe-options-newsgroup-method'."
+:group 'gnus-start
+:type 'regexp)
+(defcustom gnus-options-subscribe nil
+"*All new groups matching this regexp will be subscribed unconditionally.
+Note that this variable deals only with new newsgroups.	 This variable
+does not affect old newsgroups.
+New groups that match this regexp will not be handled by
+`gnus-subscribe-newsgroup-method'.  Instead, they will
+be subscribed using `gnus-subscribe-options-newsgroup-method'."
+:group 'gnus-start
+:type '(choice regexp
+		 (const :tag "none" nil)))
+(defcustom gnus-options-not-subscribe nil
+"*All new groups matching this regexp will be ignored.
+Note that this variable deals only with new newsgroups.	 This variable
+does not affect old (already subscribed) newsgroups."
+:group 'gnus-start
+:type '(choice regexp
+		 (const :tag "none" nil)))
+(defcustom gnus-modtime-botch nil
+"*Non-nil means .newsrc should be deleted prior to save.
+Its use is due to the bogus appearance that .newsrc was modified on
+disc."
+:group 'gnus-start
+:type 'boolean)
+(defcustom gnus-check-bogus-groups-hook nil
+"A hook run after removing bogus groups."
+:group 'gnus-start
+:type 'hook)
+(defcustom gnus-startup-hook nil
+"A hook called at startup.
+This hook is called after Gnus is connected to the NNTP server."
+:group 'gnus-start
+:type 'hook)
+(defcustom gnus-get-new-news-hook nil
+"A hook run just before Gnus checks for new news."
+:group 'gnus-start
+:type 'hook)
+(defcustom gnus-after-getting-new-news-hook
+(when (gnus-boundp 'display-time-timer)
+'(display-time-event-handler))
+"A hook run after Gnus checks for new news."
+:group 'gnus-start
+:type 'hook)
+(defcustom gnus-save-newsrc-hook nil
+"A hook called before saving any of the newsrc files."
+:group 'gnus-start
+:type 'hook)
+(defcustom gnus-save-quick-newsrc-hook nil
+"A hook called just before saving the quick newsrc file.
+Can be used to turn version control on or off."
+:group 'gnus-start
+:type 'hook)
+(defcustom gnus-save-standard-newsrc-hook nil
+"A hook called just before saving the standard newsrc file.
+Can be used to turn version control on or off."
+:group 'gnus-start
+:type 'hook)
+;;; Internal variables
+(defvar gnus-newsrc-file-version nil)
+(defvar gnus-override-subscribe-method nil)
+(defvar gnus-dribble-buffer nil)
+(defvar gnus-newsrc-options nil
+"Options line in the .newsrc file.")
+(defvar gnus-newsrc-options-n nil
+"List of regexps representing groups to be subscribed/ignored unconditionally.")
+(defvar gnus-newsrc-last-checked-date nil
+"Date Gnus last asked server for new newsgroups.")
+(defvar gnus-current-startup-file nil
+"Startup file for the current host.")
+;; Byte-compiler warning.
+(defvar gnus-group-line-format)
+;; Suggested by Brian Edmonds <edmonds@cs.ubc.ca>.
+(defvar gnus-init-inhibit nil)
+(defun gnus-read-init-file (&optional inhibit-next)
+;; Don't load .gnus if -q option was used.
+(when init-file-user
+(if gnus-init-inhibit
+	(setq gnus-init-inhibit nil)
+(setq gnus-init-inhibit inhibit-next)
+(let ((files (list gnus-site-init-file gnus-init-file))
+	    file)
+	(while files
+	  (and (setq file (pop files))
+	       (or (and (file-exists-p file)
+			;; Don't try to load a directory.
+			(not (file-directory-p file)))
+		   (file-exists-p (concat file ".el"))
+		   (file-exists-p (concat file ".elc")))
+	       (condition-case var
+		   (load file nil t)
+		 (error
+		  (error "Error in %s: %s" file var)))))))))
+;; For subscribing new newsgroup
+(defun gnus-subscribe-hierarchical-interactive (groups)
+(let ((groups (sort groups 'string<))
+	prefixes prefix start ans group starts)
+(while groups
+(setq prefixes (list "^"))
+(while (and groups prefixes)
+	(while (not (string-match (car prefixes) (car groups)))
+	  (setq prefixes (cdr prefixes)))
+	(setq prefix (car prefixes))
+	(setq start (1- (length prefix)))
+	(if (and (string-match "[^\\.]\\." (car groups) start)
+		 (cdr groups)
+		 (setq prefix
+		       (concat "^" (substring (car groups) 0 (match-end 0))))
+		 (string-match prefix (cadr groups)))
+	    (progn
+	      (push prefix prefixes)
+	      (message "Descend hierarchy %s? ([y]nsq): "
+		       (substring prefix 1 (1- (length prefix))))
+	      (while (not (memq (setq ans (read-char)) '(?y ?\n ?\r ?n ?s ?q)))
+		(ding)
+		(message "Descend hierarchy %s? ([y]nsq): "
+			 (substring prefix 1 (1- (length prefix)))))
+	      (cond ((= ans ?n)
+		     (while (and groups
+				 (string-match prefix
+					       (setq group (car groups))))
+		       (push group gnus-killed-list)
+		       (gnus-sethash group group gnus-killed-hashtb)
+		       (setq groups (cdr groups)))
+		     (setq starts (cdr starts)))
+		    ((= ans ?s)
+		     (while (and groups
+				 (string-match prefix
+					       (setq group (car groups))))
+		       (gnus-sethash group group gnus-killed-hashtb)
+		       (gnus-subscribe-alphabetically (car groups))
+		       (setq groups (cdr groups)))
+		     (setq starts (cdr starts)))
+		    ((= ans ?q)
+		     (while groups
+		       (setq group (car groups))
+		       (push group gnus-killed-list)
+		       (gnus-sethash group group gnus-killed-hashtb)
+		       (setq groups (cdr groups))))
+		    (t nil)))
+	  (message "Subscribe %s? ([n]yq)" (car groups))
+	  (while (not (memq (setq ans (read-char)) '(?y ?\n ?\r ?q ?n)))
+	    (ding)
+	    (message "Subscribe %s? ([n]yq)" (car groups)))
+	  (setq group (car groups))
+	  (cond ((= ans ?y)
+		 (gnus-subscribe-alphabetically (car groups))
+		 (gnus-sethash group group gnus-killed-hashtb))
+		((= ans ?q)
+		 (while groups
+		   (setq group (car groups))
+		   (push group gnus-killed-list)
+		   (gnus-sethash group group gnus-killed-hashtb)
+		   (setq groups (cdr groups))))
+		(t
+		 (push group gnus-killed-list)
+		 (gnus-sethash group group gnus-killed-hashtb)))
+	  (setq groups (cdr groups)))))))
+(defun gnus-subscribe-randomly (newsgroup)
+"Subscribe new NEWSGROUP by making it the first newsgroup."
+(gnus-subscribe-newsgroup newsgroup))
+(defun gnus-subscribe-alphabetically (newgroup)
+"Subscribe new NEWSGROUP and insert it in alphabetical order."
+(let ((groups (cdr gnus-newsrc-alist))
+	before)
+(while (and (not before) groups)
+(if (string< newgroup (caar groups))
+	  (setq before (caar groups))
+	(setq groups (cdr groups))))
+(gnus-subscribe-newsgroup newgroup before)))
+(defun gnus-subscribe-hierarchically (newgroup)
+"Subscribe new NEWSGROUP and insert it in hierarchical newsgroup order."
+;; Basic ideas by mike-w@cs.aukuni.ac.nz (Mike Williams)
+(save-excursion
+(set-buffer (nnheader-find-file-noselect gnus-current-startup-file))
+(let ((groupkey newgroup)
+	  before)
+(while (and (not before) groupkey)
+	(goto-char (point-min))
+	(let ((groupkey-re
+	       (concat "^\\(" (regexp-quote groupkey) ".*\\)[!:]")))
+	  (while (and (re-search-forward groupkey-re nil t)
+		      (progn
+			(setq before (match-string 1))
+			(string< before newgroup)))))
+	;; Remove tail of newsgroup name (eg. a.b.c -> a.b)
+	(setq groupkey
+	      (when (string-match "^\\(.*\\)\\.[^.]+$" groupkey)
+		(substring groupkey (match-beginning 1) (match-end 1)))))
+(gnus-subscribe-newsgroup newgroup before))
+(kill-buffer (current-buffer))))
+(defun gnus-subscribe-interactively (group)
+"Subscribe the new GROUP interactively.
+It is inserted in hierarchical newsgroup order if subscribed.  If not,
+it is killed."
+(if (gnus-y-or-n-p (format "Subscribe new newsgroup: %s " group))
+(gnus-subscribe-hierarchically group)
+(push group gnus-killed-list)))
+(defun gnus-subscribe-zombies (group)
+"Make the new GROUP into a zombie group."
+(push group gnus-zombie-list))
+(defun gnus-subscribe-killed (group)
+"Make the new GROUP a killed group."
+(push group gnus-killed-list))
+(defun gnus-subscribe-newsgroup (newsgroup &optional next)
+"Subscribe new NEWSGROUP.
+If NEXT is non-nil, it is inserted before NEXT.	 Otherwise it is made
+the first newsgroup."
+(save-excursion
+(goto-char (point-min))
+;; We subscribe the group by changing its level to `subscribed'.
+(gnus-group-change-level
+newsgroup gnus-level-default-subscribed
+gnus-level-killed (gnus-gethash (or next "dummy.group")
+				     gnus-newsrc-hashtb))
+(gnus-message 5 "Subscribe newsgroup: %s" newsgroup)))
+(defun gnus-read-active-file-p ()
+"Say whether the active file has been read from `gnus-select-method'."
+(memq gnus-select-method gnus-have-read-active-file))
+;;; General various misc type functions.
+;; Silence byte-compiler.
+(defvar gnus-current-headers)
+(defvar gnus-thread-indent-array)
+(defvar gnus-newsgroup-name)
+(defvar gnus-newsgroup-headers)
+(defvar gnus-group-list-mode)
+(defvar gnus-group-mark-positions)
+(defvar gnus-newsgroup-data)
+(defvar gnus-newsgroup-unreads)
+(defvar nnoo-state-alist)
+(defvar gnus-current-select-method)
+(defun gnus-clear-system ()
+"Clear all variables and buffers."
+;; Clear Gnus variables.
+(let ((variables gnus-variable-list))
+(while variables
+(set (car variables) nil)
+(setq variables (cdr variables))))
+;; Clear other internal variables.
+(setq gnus-list-of-killed-groups nil
+	gnus-have-read-active-file nil
+	gnus-newsrc-alist nil
+	gnus-newsrc-hashtb nil
+	gnus-killed-list nil
+	gnus-zombie-list nil
+	gnus-killed-hashtb nil
+	gnus-active-hashtb nil
+	gnus-moderated-hashtb nil
+	gnus-description-hashtb nil
+	gnus-current-headers nil
+	gnus-thread-indent-array nil
+	gnus-newsgroup-headers nil
+	gnus-newsgroup-name nil
+	gnus-server-alist nil
+	gnus-group-list-mode nil
+	gnus-opened-servers nil
+	gnus-group-mark-positions nil
+	gnus-newsgroup-data nil
+	gnus-newsgroup-unreads nil
+	nnoo-state-alist nil
+	gnus-current-select-method nil)
+(gnus-shutdown 'gnus)
+;; Kill the startup file.
+(and gnus-current-startup-file
+(get-file-buffer gnus-current-startup-file)
+(kill-buffer (get-file-buffer gnus-current-startup-file)))
+;; Clear the dribble buffer.
+(gnus-dribble-clear)
+;; Kill global KILL file buffer.
+(when (get-file-buffer (gnus-newsgroup-kill-file nil))
+(kill-buffer (get-file-buffer (gnus-newsgroup-kill-file nil))))
+(gnus-kill-buffer nntp-server-buffer)
+;; Kill Gnus buffers.
+(while gnus-buffer-list
+(gnus-kill-buffer (pop gnus-buffer-list)))
+;; Remove Gnus frames.
+(gnus-kill-gnus-frames))
+(defun gnus-no-server-1 (&optional arg slave)
+"Read network news.
+If ARG is a positive number, Gnus will use that as the
+startup level.	If ARG is nil, Gnus will be started at level 2.
+If ARG is non-nil and not a positive number, Gnus will
+prompt the user for the name of an NNTP server to use.
+As opposed to `gnus', this command will not connect to the local server."
+(interactive "P")
+(let ((val (or arg (1- gnus-level-default-subscribed))))
+(gnus val t slave)
+(make-local-variable 'gnus-group-use-permanent-levels)
+(setq gnus-group-use-permanent-levels val)))
+(defun gnus-1 (&optional arg dont-connect slave)
+"Read network news.
+If ARG is non-nil and a positive number, Gnus will use that as the
+startup level.	If ARG is non-nil and not a positive number, Gnus will
+prompt the user for the name of an NNTP server to use."
+(interactive "P")
+(if (and (get-buffer gnus-group-buffer)
+	   (save-excursion
+	     (set-buffer gnus-group-buffer)
+	     (eq major-mode 'gnus-group-mode)))
+(progn
+	(switch-to-buffer gnus-group-buffer)
+	(gnus-group-get-new-news))
+(gnus-splash)
+(gnus-clear-system)
+(nnheader-init-server-buffer)
+(gnus-read-init-file)
+(setq gnus-slave slave)
+(when (and (string-match "XEmacs" (emacs-version))
+	       gnus-simple-splash)
+(setq gnus-simple-splash nil)
+(gnus-xmas-splash))
+(let ((level (and (numberp arg) (> arg 0) arg))
+	  did-connect)
+(unwind-protect
+	  (progn
+	    (unless dont-connect
+	      (setq did-connect
+		    (gnus-start-news-server (and arg (not level))))))
+	(if (and (not dont-connect)
+		 (not did-connect))
+	    (gnus-group-quit)
+	  (run-hooks 'gnus-startup-hook)
+	  ;; NNTP server is successfully open.
+	  ;; Find the current startup file name.
+	  (setq gnus-current-startup-file
+		(gnus-make-newsrc-file gnus-startup-file))
+	  ;; Read the dribble file.
+	  (when (or gnus-slave gnus-use-dribble-file)
+	    (gnus-dribble-read-file))
+	  ;; Allow using GroupLens predictions.
+	  (when gnus-use-grouplens
+	    (bbb-login)
+	    (add-hook 'gnus-summary-mode-hook 'gnus-grouplens-mode))
+	  ;; Do the actual startup.
+	  (gnus-setup-news nil level dont-connect)
+	  ;; Generate the group buffer.
+	  (gnus-group-list-groups level)
+	  (gnus-group-first-unread-group)
+	  (gnus-configure-windows 'group)
+	  (gnus-group-set-mode-line))))))
+;;;###autoload
+(defun gnus-unload ()
+"Unload all Gnus features."
+(interactive)
+(unless (boundp 'load-history)
+(error "Sorry, `gnus-unload' is not implemented in this Emacs version."))
+(let ((history load-history)
+	feature)
+(while history
+(and (string-match "^\\(gnus\\|nn\\)" (caar history))
+	   (setq feature (cdr (assq 'provide (car history))))
+	   (unload-feature feature 'force))
+(setq history (cdr history)))))
+;;;
+;;; Dribble file
+;;;
+(defvar gnus-dribble-ignore nil)
+(defvar gnus-dribble-eval-file nil)
+(defun gnus-dribble-file-name ()
+"Return the dribble file for the current .newsrc."
+(concat
+(if gnus-dribble-directory
+(concat (file-name-as-directory gnus-dribble-directory)
+	       (file-name-nondirectory gnus-current-startup-file))
+gnus-current-startup-file)
+"-dribble"))
+(defun gnus-dribble-enter (string)
+"Enter STRING into the dribble buffer."
+(when (and (not gnus-dribble-ignore)
+	     gnus-dribble-buffer
+	     (buffer-name gnus-dribble-buffer))
+(let ((obuf (current-buffer)))
+(set-buffer gnus-dribble-buffer)
+(goto-char (point-max))
+(insert string "\n")
+(set-window-point (get-buffer-window (current-buffer)) (point-max))
+(bury-buffer gnus-dribble-buffer)
+(set-buffer obuf))))
+(defun gnus-dribble-touch ()
+"Touch the dribble buffer."
+(gnus-dribble-enter ""))
+(defun gnus-dribble-read-file ()
+"Read the dribble file from disk."
+(let ((dribble-file (gnus-dribble-file-name)))
+(save-excursion
+(set-buffer (setq gnus-dribble-buffer
+			(get-buffer-create
+			 (file-name-nondirectory dribble-file))))
+(gnus-add-current-to-buffer-list)
+(erase-buffer)
+(setq buffer-file-name dribble-file)
+(auto-save-mode t)
+(buffer-disable-undo (current-buffer))
+(bury-buffer (current-buffer))
+(set-buffer-modified-p nil)
+(let ((auto (make-auto-save-file-name))
+	    (gnus-dribble-ignore t)
+	    modes)
+	(when (or (file-exists-p auto) (file-exists-p dribble-file))
+	  ;; Load whichever file is newest -- the auto save file
+	  ;; or the "real" file.
+	  (if (file-newer-than-file-p auto dribble-file)
+	      (nnheader-insert-file-contents auto)
+	    (nnheader-insert-file-contents dribble-file))
+	  (unless (zerop (buffer-size))
+	    (set-buffer-modified-p t))
+	  ;; Set the file modes to reflect the .newsrc file modes.
+	  (save-buffer)
+	  (when (and (file-exists-p gnus-current-startup-file)
+		     (setq modes (file-modes gnus-current-startup-file)))
+	    (set-file-modes dribble-file modes))
+	  ;; Possibly eval the file later.
+	  (when (gnus-y-or-n-p
+		 "Auto-save file exists.  Do you want to read it? ")
+	    (setq gnus-dribble-eval-file t)))))))
+(defun gnus-dribble-eval-file ()
+(when gnus-dribble-eval-file
+(setq gnus-dribble-eval-file nil)
+(save-excursion
+(let ((gnus-dribble-ignore t))
+	(set-buffer gnus-dribble-buffer)
+	(eval-buffer (current-buffer))))))
+(defun gnus-dribble-delete-file ()
+(when (file-exists-p (gnus-dribble-file-name))
+(delete-file (gnus-dribble-file-name)))
+(when gnus-dribble-buffer
+(save-excursion
+(set-buffer gnus-dribble-buffer)
+(let ((auto (make-auto-save-file-name)))
+	(when (file-exists-p auto)
+	  (delete-file auto))
+	(erase-buffer)
+	(set-buffer-modified-p nil)))))
+(defun gnus-dribble-save ()
+(when (and gnus-dribble-buffer
+	     (buffer-name gnus-dribble-buffer))
+(save-excursion
+(set-buffer gnus-dribble-buffer)
+(save-buffer))))
+(defun gnus-dribble-clear ()
+(when (gnus-buffer-exists-p gnus-dribble-buffer)
+(save-excursion
+(set-buffer gnus-dribble-buffer)
+(erase-buffer)
+(set-buffer-modified-p nil)
+(setq buffer-saved-size (buffer-size)))))
+;;;
+;;; Active & Newsrc File Handling
+;;;
+(defun gnus-setup-news (&optional rawfile level dont-connect)
+"Setup news information.
+If RAWFILE is non-nil, the .newsrc file will also be read.
+If LEVEL is non-nil, the news will be set up at level LEVEL."
+(let ((init (not (and gnus-newsrc-alist gnus-active-hashtb (not rawfile)))))
+(when init
+;; Clear some variables to re-initialize news information.
+(setq gnus-newsrc-alist nil
+	    gnus-active-hashtb nil)
+;; Read the newsrc file and create `gnus-newsrc-hashtb'.
+(gnus-read-newsrc-file rawfile))
+(when (and (not (assoc "archive" gnus-server-alist))
+	       (gnus-archive-server-wanted-p))
+(push (cons "archive" gnus-message-archive-method)
+	    gnus-server-alist))
+;; If we don't read the complete active file, we fill in the
+;; hashtb here.
+(when (or (null gnus-read-active-file)
+	      (eq gnus-read-active-file 'some))
+(gnus-update-active-hashtb-from-killed))
+;; Read the active file and create `gnus-active-hashtb'.
+;; If `gnus-read-active-file' is nil, then we just create an empty
+;; hash table.  The partial filling out of the hash table will be
+;; done in `gnus-get-unread-articles'.
+(and gnus-read-active-file
+	 (not level)
+	 (gnus-read-active-file))
+(unless gnus-active-hashtb
+(setq gnus-active-hashtb (gnus-make-hashtable 4096)))
+;; Initialize the cache.
+(when gnus-use-cache
+(gnus-cache-open))
+;; Possibly eval the dribble file.
+(and init
+	 (or gnus-use-dribble-file gnus-slave)
+	 (gnus-dribble-eval-file))
+;; Slave Gnusii should then clear the dribble buffer.
+(when (and init gnus-slave)
+(gnus-dribble-clear))
+(gnus-update-format-specifications)
+;; See whether we need to read the description file.
+(when (and (boundp 'gnus-group-line-format)
+	       (string-match "%[-,0-9]*D" gnus-group-line-format)
+	       (not gnus-description-hashtb)
+	       (not dont-connect)
+	       gnus-read-active-file)
+(gnus-read-all-descriptions-files))
+;; Find new newsgroups and treat them.
+(when (and init gnus-check-new-newsgroups (not level)
+	       (gnus-check-server gnus-select-method)
+	       (not gnus-slave))
+(gnus-find-new-newsgroups))
+;; We might read in new NoCeM messages here.
+(when (and gnus-use-nocem
+	       (not level)
+	       (not dont-connect))
+(gnus-nocem-scan-groups))
+;; Read any slave files.
+(gnus-master-read-slave-newsrc)
+;; Find the number of unread articles in each non-dead group.
+(let ((gnus-read-active-file (and (not level) gnus-read-active-file)))
+(gnus-get-unread-articles level))
+(when (and init gnus-check-bogus-newsgroups
+	       gnus-read-active-file (not level)
+	       (gnus-server-opened gnus-select-method))
+(gnus-check-bogus-newsgroups))))
+(defun gnus-find-new-newsgroups (&optional arg)
+"Search for new newsgroups and add them.
+Each new newsgroup will be treated with `gnus-subscribe-newsgroup-method.'
+The `-n' option line from .newsrc is respected.
+If ARG (the prefix), use the `ask-server' method to query
+the server for new groups."
+(interactive "P")
+(let ((check (if (or (and arg (not (listp gnus-check-new-newsgroups)))
+		       (null gnus-read-active-file)
+		       (eq gnus-read-active-file 'some))
+		   'ask-server gnus-check-new-newsgroups)))
+(unless (gnus-check-first-time-used)
+(if (or (consp check)
+	      (eq check 'ask-server))
+	  ;; Ask the server for new groups.
+	  (gnus-ask-server-for-new-groups)
+	;; Go through the active hashtb and look for new groups.
+	(let ((groups 0)
+	      group new-newsgroups)
+	  (gnus-message 5 "Looking for new newsgroups...")
+	  (unless gnus-have-read-active-file
+	    (gnus-read-active-file))
+	  (setq gnus-newsrc-last-checked-date (current-time-string))
+	  (unless gnus-killed-hashtb
+	    (gnus-make-hashtable-from-killed))
+	  ;; Go though every newsgroup in `gnus-active-hashtb' and compare
+	  ;; with `gnus-newsrc-hashtb' and `gnus-killed-hashtb'.
+	  (mapatoms
+	   (lambda (sym)
+	     (if (or (null (setq group (symbol-name sym)))
+		     (not (boundp sym))
+		     (null (symbol-value sym))
+		     (gnus-gethash group gnus-killed-hashtb)
+		     (gnus-gethash group gnus-newsrc-hashtb))
+		 ()
+	       (let ((do-sub (gnus-matches-options-n group)))
+		 (cond
+		  ((eq do-sub 'subscribe)
+		   (setq groups (1+ groups))
+		   (gnus-sethash group group gnus-killed-hashtb)
+		   (funcall gnus-subscribe-options-newsgroup-method group))
+		  ((eq do-sub 'ignore)
+		   nil)
+		  (t
+		   (setq groups (1+ groups))
+		   (gnus-sethash group group gnus-killed-hashtb)
+		   (if gnus-subscribe-hierarchical-interactive
+		       (push group new-newsgroups)
+		     (funcall gnus-subscribe-newsgroup-method group)))))))
+	   gnus-active-hashtb)
+	  (when new-newsgroups
+	    (gnus-subscribe-hierarchical-interactive new-newsgroups))
+	  ;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
+	  (if (> groups 0)
+	      (gnus-message 5 "%d new newsgroup%s arrived."
+			    groups (if (> groups 1) "s have" " has"))
+	    (gnus-message 5 "No new newsgroups.")))))))
+(defun gnus-matches-options-n (group)
+;; Returns `subscribe' if the group is to be unconditionally
+;; subscribed, `ignore' if it is to be ignored, and nil if there is
+;; no match for the group.
+;; First we check the two user variables.
+(cond
+((and gnus-options-subscribe
+	 (string-match gnus-options-subscribe group))
+'subscribe)
+((and gnus-auto-subscribed-groups
+	 (string-match gnus-auto-subscribed-groups group))
+'subscribe)
+((and gnus-options-not-subscribe
+	 (string-match gnus-options-not-subscribe group))
+'ignore)
+;; Then we go through the list that was retrieved from the .newsrc
+;; file.  This list has elements on the form
+;; `(REGEXP . {ignore,subscribe})'.  The first match found (the list
+;; is in the reverse order of the options line) is returned.
+(t
+(let ((regs gnus-newsrc-options-n))
+(while (and regs
+		  (not (string-match (caar regs) group)))
+	(setq regs (cdr regs)))
+(and regs (cdar regs))))))
+(defun gnus-ask-server-for-new-groups ()
+(let* ((date (or gnus-newsrc-last-checked-date (current-time-string)))
+	 (methods (cons gnus-select-method
+			(nconc
+			 (when (gnus-archive-server-wanted-p)
+			   (list "archive"))
+			 (append
+			  (and (consp gnus-check-new-newsgroups)
+			       gnus-check-new-newsgroups)
+			  gnus-secondary-select-methods))))
+	 (groups 0)
+	 (new-date (current-time-string))
+	 group new-newsgroups got-new method hashtb
+	 gnus-override-subscribe-method)
+;; Go through both primary and secondary select methods and
+;; request new newsgroups.
+(while (setq method (gnus-server-get-method nil (pop methods)))
+(setq new-newsgroups nil)
+(setq gnus-override-subscribe-method method)
+(when (and (gnus-check-server method)
+		 (gnus-request-newgroups date method))
+	(save-excursion
+	  (setq got-new t)
+	  (setq hashtb (gnus-make-hashtable 100))
+	  (set-buffer nntp-server-buffer)
+	  ;; Enter all the new groups into a hashtable.
+	  (gnus-active-to-gnus-format method hashtb 'ignore))
+	;; Now all new groups from `method' are in `hashtb'.
+	(mapatoms
+	 (lambda (group-sym)
+	   (if (or (null (setq group (symbol-name group-sym)))
+		   (not (boundp group-sym))
+		   (null (symbol-value group-sym))
+		   (gnus-gethash group gnus-newsrc-hashtb)
+		   (member group gnus-zombie-list)
+		   (member group gnus-killed-list))
+	       ;; The group is already known.
+	       ()
+	     ;; Make this group active.
+	     (when (symbol-value group-sym)
+	       (gnus-set-active group (symbol-value group-sym)))
+	     ;; Check whether we want it or not.
+	     (let ((do-sub (gnus-matches-options-n group)))
+	       (cond
+		((eq do-sub 'subscribe)
+		 (incf groups)
+		 (gnus-sethash group group gnus-killed-hashtb)
+		 (funcall gnus-subscribe-options-newsgroup-method group))
+		((eq do-sub 'ignore)
+		 nil)
+		(t
+		 (incf groups)
+		 (gnus-sethash group group gnus-killed-hashtb)
+		 (if gnus-subscribe-hierarchical-interactive
+		     (push group new-newsgroups)
+		   (funcall gnus-subscribe-newsgroup-method group)))))))
+	 hashtb))
+(when new-newsgroups
+	(gnus-subscribe-hierarchical-interactive new-newsgroups)))
+;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
+(when (> groups 0)
+(gnus-message 6 "%d new newsgroup%s arrived."
+		    groups (if (> groups 1) "s have" " has")))
+(when got-new
+(setq gnus-newsrc-last-checked-date new-date))
+got-new))
+(defun gnus-check-first-time-used ()
+(if (or (> (length gnus-newsrc-alist) 1)
+	  (file-exists-p gnus-startup-file)
+	  (file-exists-p (concat gnus-startup-file ".el"))
+	  (file-exists-p (concat gnus-startup-file ".eld")))
+nil
+(gnus-message 6 "First time user; subscribing you to default groups")
+(unless (gnus-read-active-file-p)
+(gnus-read-active-file))
+(setq gnus-newsrc-last-checked-date (current-time-string))
+(let ((groups gnus-default-subscribed-newsgroups)
+	  group)
+(if (eq groups t)
+	  nil
+	(setq groups (or groups gnus-backup-default-subscribed-newsgroups))
+	(mapatoms
+	 (lambda (sym)
+	   (if (null (setq group (symbol-name sym)))
+	       ()
+	     (let ((do-sub (gnus-matches-options-n group)))
+	       (cond
+		((eq do-sub 'subscribe)
+		 (gnus-sethash group group gnus-killed-hashtb)
+		 (funcall gnus-subscribe-options-newsgroup-method group))
+		((eq do-sub 'ignore)
+		 nil)
+		(t
+		 (push group gnus-killed-list))))))
+	 gnus-active-hashtb)
+	(while groups
+	  (when (gnus-active (car groups))
+	    (gnus-group-change-level
+	     (car groups) gnus-level-default-subscribed gnus-level-killed))
+	  (setq groups (cdr groups)))
+	(gnus-group-make-help-group)
+	(when gnus-novice-user
+	  (gnus-message 7 "`A k' to list killed groups"))))))
+(defun gnus-subscribe-group (group previous &optional method)
+(gnus-group-change-level
+(if method
+(list t group gnus-level-default-subscribed nil nil method)
+group)
+gnus-level-default-subscribed gnus-level-killed previous t))
+;; `gnus-group-change-level' is the fundamental function for changing
+;; subscription levels of newsgroups.  This might mean just changing
+;; from level 1 to 2, which is pretty trivial, from 2 to 6 or back
+;; again, which subscribes/unsubscribes a group, which is equally
+;; trivial.  Changing from 1-7 to 8-9 means that you kill a group, and
+;; from 8-9 to 1-7 means that you remove the group from the list of
+;; killed (or zombie) groups and add them to the (kinda) subscribed
+;; groups.  And last but not least, moving from 8 to 9 and 9 to 8,
+;; which is trivial.
+;; ENTRY can either be a string (newsgroup name) or a list (if
+;; FROMKILLED is t, it's a list on the format (NUM INFO-LIST),
+;; otherwise it's a list in the format of the `gnus-newsrc-hashtb'
+;; entries.
+;; LEVEL is the new level of the group, OLDLEVEL is the old level and
+;; PREVIOUS is the group (in hashtb entry format) to insert this group
+;; after.
+(defun gnus-group-change-level (entry level &optional oldlevel
+				      previous fromkilled)
+(let (group info active num)
+;; Glean what info we can from the arguments
+(if (consp entry)
+	(if fromkilled (setq group (nth 1 entry))
+	  (setq group (car (nth 2 entry))))
+(setq group entry))
+(when (and (stringp entry)
+	       oldlevel
+	       (< oldlevel gnus-level-zombie))
+(setq entry (gnus-gethash entry gnus-newsrc-hashtb)))
+(if (and (not oldlevel)
+	     (consp entry))
+	(setq oldlevel (gnus-info-level (nth 2 entry)))
+(setq oldlevel (or oldlevel 9)))
+(when (stringp previous)
+(setq previous (gnus-gethash previous gnus-newsrc-hashtb)))
+(if (and (>= oldlevel gnus-level-zombie)
+	     (gnus-gethash group gnus-newsrc-hashtb))
+	;; We are trying to subscribe a group that is already
+	;; subscribed.
+	()				; Do nothing.
+(unless (gnus-ephemeral-group-p group)
+	(gnus-dribble-enter
+	 (format "(gnus-group-change-level %S %S %S %S %S)"
+		 group level oldlevel (car (nth 2 previous)) fromkilled)))
+;; Then we remove the newgroup from any old structures, if needed.
+;; If the group was killed, we remove it from the killed or zombie
+;; list.  If not, and it is in fact going to be killed, we remove
+;; it from the newsrc hash table and assoc.
+(cond
+((>= oldlevel gnus-level-zombie)
+	(if (= oldlevel gnus-level-zombie)
+	    (setq gnus-zombie-list (delete group gnus-zombie-list))
+	  (setq gnus-killed-list (delete group gnus-killed-list))))
+(t
+	(when (and (>= level gnus-level-zombie)
+		   entry)
+	  (gnus-sethash (car (nth 2 entry)) nil gnus-newsrc-hashtb)
+	  (when (nth 3 entry)
+	    (setcdr (gnus-gethash (car (nth 3 entry))
+				  gnus-newsrc-hashtb)
+		    (cdr entry)))
+	  (setcdr (cdr entry) (cdddr entry)))))
+;; Finally we enter (if needed) the list where it is supposed to
+;; go, and change the subscription level.  If it is to be killed,
+;; we enter it into the killed or zombie list.
+(cond
+((>= level gnus-level-zombie)
+	;; Remove from the hash table.
+	(gnus-sethash group nil gnus-newsrc-hashtb)
+	;; We do not enter foreign groups into the list of dead
+	;; groups.
+	(unless (gnus-group-foreign-p group)
+	  (if (= level gnus-level-zombie)
+	      (push group gnus-zombie-list)
+	    (push group gnus-killed-list))))
+(t
+	;; If the list is to be entered into the newsrc assoc, and
+	;; it was killed, we have to create an entry in the newsrc
+	;; hashtb format and fix the pointers in the newsrc assoc.
+	(if (< oldlevel gnus-level-zombie)
+	    ;; It was alive, and it is going to stay alive, so we
+	    ;; just change the level and don't change any pointers or
+	    ;; hash table entries.
+	    (setcar (cdaddr entry) level)
+	  (if (listp entry)
+	      (setq info (cdr entry)
+		    num (car entry))
+	    (setq active (gnus-active group))
+	    (setq num
+		  (if active (- (1+ (cdr active)) (car active)) t))
+	    ;; Check whether the group is foreign.  If so, the
+	    ;; foreign select method has to be entered into the
+	    ;; info.
+	    (let ((method (or gnus-override-subscribe-method
+			      (gnus-group-method group))))
+	      (if (eq method gnus-select-method)
+		  (setq info (list group level nil))
+		(setq info (list group level nil nil method)))))
+	  (unless previous
+	    (setq previous
+		  (let ((p gnus-newsrc-alist))
+		    (while (cddr p)
+		      (setq p (cdr p)))
+		    p)))
+	  (setq entry (cons info (cddr previous)))
+	  (if (cdr previous)
+	      (progn
+		(setcdr (cdr previous) entry)
+		(gnus-sethash group (cons num (cdr previous))
+			      gnus-newsrc-hashtb))
+	    (setcdr previous entry)
+	    (gnus-sethash group (cons num previous)
+			  gnus-newsrc-hashtb))
+	  (when (cdr entry)
+	    (setcdr (gnus-gethash (caadr entry) gnus-newsrc-hashtb) entry))
+	  (gnus-dribble-enter
+	   (format
+	    "(gnus-group-set-info '%S)" info)))))
+(when gnus-group-change-level-function
+	(funcall gnus-group-change-level-function group level oldlevel)))))
+(defun gnus-kill-newsgroup (newsgroup)
+"Obsolete function.  Kills a newsgroup."
+(gnus-group-change-level
+(gnus-gethash newsgroup gnus-newsrc-hashtb) gnus-level-killed))
+(defun gnus-check-bogus-newsgroups (&optional confirm)
+"Remove bogus newsgroups.
+If CONFIRM is non-nil, the user has to confirm the deletion of every
+newsgroup."
+(let ((newsrc (cdr gnus-newsrc-alist))
+	bogus group entry info)
+(gnus-message 5 "Checking bogus newsgroups...")
+(unless (gnus-read-active-file-p)
+(gnus-read-active-file))
+(when (gnus-read-active-file-p)
+;; Find all bogus newsgroup that are subscribed.
+(while newsrc
+	(setq info (pop newsrc)
+	      group (gnus-info-group info))
+	(unless (or (gnus-active group)	; Active
+		    (gnus-info-method info)) ; Foreign
+	  ;; Found a bogus newsgroup.
+	  (push group bogus)))
+(if confirm
+	  (map-y-or-n-p
+	   "Remove bogus group %s? "
+	   (lambda (group)
+	     ;; Remove all bogus subscribed groups by first killing them, and
+	     ;; then removing them from the list of killed groups.
+	     (when (setq entry (gnus-gethash group gnus-newsrc-hashtb))
+	       (gnus-group-change-level entry gnus-level-killed)
+	       (setq gnus-killed-list (delete group gnus-killed-list))))
+	   bogus)
+	(while (setq group (pop bogus))
+	  ;; Remove all bogus subscribed groups by first killing them, and
+	  ;; then removing them from the list of killed groups.
+	  (when (setq entry (gnus-gethash group gnus-newsrc-hashtb))
+	    (gnus-group-change-level entry gnus-level-killed)
+	    (setq gnus-killed-list (delete group gnus-killed-list)))))
+;; Then we remove all bogus groups from the list of killed and
+;; zombie groups.  They are removed without confirmation.
+(let ((dead-lists '(gnus-killed-list gnus-zombie-list))
+	    killed)
+	(while dead-lists
+	  (setq killed (symbol-value (car dead-lists)))
+	  (while killed
+	    (unless (gnus-active (setq group (pop killed)))
+	      ;; The group is bogus.
+	      ;; !!!Slow as hell.
+	      (set (car dead-lists)
+		   (delete group (symbol-value (car dead-lists))))))
+	  (setq dead-lists (cdr dead-lists))))
+(run-hooks 'gnus-check-bogus-groups-hook)
+(gnus-message 5 "Checking bogus newsgroups...done"))))
+(defun gnus-check-duplicate-killed-groups ()
+"Remove duplicates from the list of killed groups."
+(interactive)
+(let ((killed gnus-killed-list))
+(while killed
+(gnus-message 9 "%d" (length killed))
+(setcdr killed (delete (car killed) (cdr killed)))
+(setq killed (cdr killed)))))
+;; We want to inline a function from gnus-cache, so we cheat here:
+(eval-when-compile
+(defvar gnus-cache-active-hashtb)
+(defun gnus-cache-possibly-alter-active (group active)
+"Alter the ACTIVE info for GROUP to reflect the articles in the cache."
+(when gnus-cache-active-hashtb
+(let ((cache-active (gnus-gethash group gnus-cache-active-hashtb)))
+	(and cache-active
+	     (< (car cache-active) (car active))
+	     (setcar active (car cache-active)))
+	(and cache-active
+	     (> (cdr cache-active) (cdr active))
+	     (setcdr active (cdr cache-active)))))))
+(defun gnus-get-unread-articles-in-group (info active &optional update)
+(when active
+;; Allow the backend to update the info in the group.
+(when (and update
+	       (gnus-request-update-info
+		info (gnus-find-method-for-group (gnus-info-group info))))
+(gnus-activate-group (gnus-info-group info) nil t))
+(let* ((range (gnus-info-read info))
+	   (num 0))
+;; If a cache is present, we may have to alter the active info.
+(when (and gnus-use-cache info)
+	(inline (gnus-cache-possibly-alter-active
+		 (gnus-info-group info) active)))
+;; Modify the list of read articles according to what articles
+;; are available; then tally the unread articles and add the
+;; number to the group hash table entry.
+(cond
+((zerop (cdr active))
+	(setq num 0))
+((not range)
+	(setq num (- (1+ (cdr active)) (car active))))
+((not (listp (cdr range)))
+	;; Fix a single (num . num) range according to the
+	;; active hash table.
+	;; Fix by Carsten Bormann <cabo@Informatik.Uni-Bremen.DE>.
+	(and (< (cdr range) (car active)) (setcdr range (1- (car active))))
+	(and (> (cdr range) (cdr active)) (setcdr range (cdr active)))
+	;; Compute number of unread articles.
+	(setq num (max 0 (- (cdr active) (- (1+ (cdr range)) (car range))))))
+(t
+	;; The read list is a list of ranges.  Fix them according to
+	;; the active hash table.
+	;; First peel off any elements that are below the lower
+	;; active limit.
+	(while (and (cdr range)
+		    (>= (car active)
+			(or (and (atom (cadr range)) (cadr range))
+			    (caadr range))))
+	  (if (numberp (car range))
+	      (setcar range
+		      (cons (car range)
+			    (or (and (numberp (cadr range))
+				     (cadr range))
+				(cdadr range))))
+	    (setcdr (car range)
+		    (or (and (numberp (nth 1 range)) (nth 1 range))
+			(cdadr range))))
+	  (setcdr range (cddr range)))
+	;; Adjust the first element to be the same as the lower limit.
+	(when (and (not (atom (car range)))
+		   (< (cdar range) (car active)))
+	  (setcdr (car range) (1- (car active))))
+	;; Then we want to peel off any elements that are higher
+	;; than the upper active limit.
+	(let ((srange range))
+	  ;; Go past all legal elements.
+	  (while (and (cdr srange)
+		      (<= (or (and (atom (cadr srange))
+				   (cadr srange))
+			      (caadr srange))
+			  (cdr active)))
+	    (setq srange (cdr srange)))
+	  (when (cdr srange)
+	    ;; Nuke all remaining illegal elements.
+	    (setcdr srange nil))
+	  ;; Adjust the final element.
+	  (when (and (not (atom (car srange)))
+		     (> (cdar srange) (cdr active)))
+	    (setcdr (car srange) (cdr active))))
+	;; Compute the number of unread articles.
+	(while range
+	  (setq num (+ num (- (1+ (or (and (atom (car range)) (car range))
+				      (cdar range)))
+			      (or (and (atom (car range)) (car range))
+				  (caar range)))))
+	  (setq range (cdr range)))
+	(setq num (max 0 (- (cdr active) num)))))
+;; Set the number of unread articles.
+(when info
+	(setcar (gnus-gethash (gnus-info-group info) gnus-newsrc-hashtb) num))
+num)))
+;; Go though `gnus-newsrc-alist' and compare with `gnus-active-hashtb'
+;; and compute how many unread articles there are in each group.
+(defun gnus-get-unread-articles (&optional level)
+(let* ((newsrc (cdr gnus-newsrc-alist))
+	 (level (or level gnus-activate-level (1+ gnus-level-subscribed)))
+	 (foreign-level
+	  (min
+	   (cond ((and gnus-activate-foreign-newsgroups
+		       (not (numberp gnus-activate-foreign-newsgroups)))
+		  (1+ gnus-level-subscribed))
+		 ((numberp gnus-activate-foreign-newsgroups)
+		  gnus-activate-foreign-newsgroups)
+		 (t 0))
+	   level))
+	 info group active method)
+(gnus-message 5 "Checking new news...")
+(while newsrc
+(setq active (gnus-active (setq group (gnus-info-group
+					     (setq info (pop newsrc))))))
+;; Check newsgroups.  If the user doesn't want to check them, or
+;; they can't be checked (for instance, if the news server can't
+;; be reached) we just set the number of unread articles in this
+;; newsgroup to t.  This means that Gnus thinks that there are
+;; unread articles, but it has no idea how many.
+(if (and (setq method (gnus-info-method info))
+	       (not (gnus-server-equal
+		     gnus-select-method
+		     (setq method (gnus-server-get-method nil method))))
+	       (not (gnus-secondary-method-p method)))
+	  ;; These groups are foreign.  Check the level.
+	  (when (<= (gnus-info-level info) foreign-level)
+	    (setq active (gnus-activate-group group 'scan))
+	    (unless (inline (gnus-virtual-group-p group))
+	      (inline (gnus-close-group group)))
+	    (when (fboundp (intern (concat (symbol-name (car method))
+					   "-request-update-info")))
+	      (inline (gnus-request-update-info info method))))
+	;; These groups are native or secondary.
+	(when (and (<= (gnus-info-level info) level)
+		   (not gnus-read-active-file))
+	  (setq active (gnus-activate-group group 'scan))
+	  (inline (gnus-close-group group))))
+;; Get the number of unread articles in the group.
+(if active
+	  (inline (gnus-get-unread-articles-in-group info active t))
+	;; The group couldn't be reached, so we nix out the number of
+	;; unread articles and stuff.
+	(gnus-set-active group nil)
+	(setcar (gnus-gethash group gnus-newsrc-hashtb) t)))
+(gnus-message 5 "Checking new news...done")))
+;; Create a hash table out of the newsrc alist.  The `car's of the
+;; alist elements are used as keys.
+(defun gnus-make-hashtable-from-newsrc-alist ()
+(let ((alist gnus-newsrc-alist)
+	(ohashtb gnus-newsrc-hashtb)
+	prev)
+(setq gnus-newsrc-hashtb (gnus-make-hashtable (length alist)))
+(setq alist
+	  (setq prev (setq gnus-newsrc-alist
+			   (if (equal (caar gnus-newsrc-alist)
+				      "dummy.group")
+			       gnus-newsrc-alist
+			     (cons (list "dummy.group" 0 nil) alist)))))
+(while alist
+(gnus-sethash
+(caar alist)
+(cons (and ohashtb (car (gnus-gethash (caar alist) ohashtb)))
+	     prev)
+gnus-newsrc-hashtb)
+(setq prev alist
+	    alist (cdr alist)))))
+(defun gnus-make-hashtable-from-killed ()
+"Create a hash table from the killed and zombie lists."
+(let ((lists '(gnus-killed-list gnus-zombie-list))
+	list)
+(setq gnus-killed-hashtb
+	  (gnus-make-hashtable
+	   (+ (length gnus-killed-list) (length gnus-zombie-list))))
+(while lists
+(setq list (symbol-value (pop lists)))
+(while list
+	(gnus-sethash (car list) (pop list) gnus-killed-hashtb)))))
+(defun gnus-activate-group (group &optional scan dont-check method)
+;; Check whether a group has been activated or not.
+;; If SCAN, request a scan of that group as well.
+(let ((method (or method (gnus-find-method-for-group group)))
+	active)
+(and (gnus-check-server method)
+	 ;; We escape all bugs and quit here to make it possible to
+	 ;; continue if a group is so out-there that it reports bugs
+	 ;; and stuff.
+	 (progn
+	   (and scan
+		(gnus-check-backend-function 'request-scan (car method))
+		(gnus-request-scan group method))
+	   t)
+	 (condition-case ()
+	     (gnus-request-group group dont-check method)
+	   (error nil)
+	   (quit nil))
+	 (gnus-set-active group (setq active (gnus-parse-active)))
+	 ;; Return the new active info.
+	 active)))
+(defun gnus-parse-active ()
+"Parse active info in the nntp server buffer."
+(save-excursion
+(set-buffer nntp-server-buffer)
+(goto-char (point-min))
+;; Parse the result we got from `gnus-request-group'.
+(when (looking-at "[0-9]+ [0-9]+ \\([0-9]+\\) [0-9]+")
+(goto-char (match-beginning 1))
+(cons (read (current-buffer))
+	    (read (current-buffer))))))
+(defun gnus-make-articles-unread (group articles)
+"Mark ARTICLES in GROUP as unread."
+(let* ((info (nth 2 (or (gnus-gethash group gnus-newsrc-hashtb)
+			  (gnus-gethash (gnus-group-real-name group)
+					gnus-newsrc-hashtb))))
+	 (ranges (gnus-info-read info))
+	 news article)
+(while articles
+(when (gnus-member-of-range
+	     (setq article (pop articles)) ranges)
+	(push article news)))
+(when news
+(gnus-info-set-read
+info (gnus-remove-from-range (gnus-info-read info) (nreverse news)))
+(gnus-group-update-group group t))))
+;; Enter all dead groups into the hashtb.
+(defun gnus-update-active-hashtb-from-killed ()
+(let ((hashtb (setq gnus-active-hashtb (gnus-make-hashtable 4096)))
+	(lists (list gnus-killed-list gnus-zombie-list))
+	killed)
+(while lists
+(setq killed (car lists))
+(while killed
+	(gnus-sethash (car killed) nil hashtb)
+	(setq killed (cdr killed)))
+(setq lists (cdr lists)))))
+(defun gnus-get-killed-groups ()
+"Go through the active hashtb and mark all unknown groups as killed."
+;; First make sure active file has been read.
+(unless (gnus-read-active-file-p)
+(let ((gnus-read-active-file t))
+(gnus-read-active-file)))
+(unless gnus-killed-hashtb
+(gnus-make-hashtable-from-killed))
+;; Go through all newsgroups that are known to Gnus - enlarge kill list.
+(mapatoms
+(lambda (sym)
+(let ((groups 0)
+	   (group (symbol-name sym)))
+(if (or (null group)
+	       (gnus-gethash group gnus-killed-hashtb)
+	       (gnus-gethash group gnus-newsrc-hashtb))
+	   ()
+	 (let ((do-sub (gnus-matches-options-n group)))
+	   (if (or (eq do-sub 'subscribe) (eq do-sub 'ignore))
+	       ()
+	     (setq groups (1+ groups))
+	     (push group gnus-killed-list)
+	     (gnus-sethash group group gnus-killed-hashtb))))))
+gnus-active-hashtb)
+(gnus-dribble-touch))
+;; Get the active file(s) from the backend(s).
+(defun gnus-read-active-file ()
+(gnus-group-set-mode-line)
+(let ((methods
+	 (append
+	  (if (gnus-check-server gnus-select-method)
+	      ;; The native server is available.
+	      (cons gnus-select-method gnus-secondary-select-methods)
+	    ;; The native server is down, so we just do the
+	    ;; secondary ones.
+	    gnus-secondary-select-methods)
+	  ;; Also read from the archive server.
+	  (when (gnus-archive-server-wanted-p)
+	    (list "archive"))))
+	list-type)
+(setq gnus-have-read-active-file nil)
+(save-excursion
+(set-buffer nntp-server-buffer)
+(while methods
+	(let* ((method (if (stringp (car methods))
+			   (gnus-server-get-method nil (car methods))
+			 (car methods)))
+	       (where (nth 1 method))
+	       (mesg (format "Reading active file%s via %s..."
+			     (if (and where (not (zerop (length where))))
+				 (concat " from " where) "")
+			     (car method))))
+	  (gnus-message 5 mesg)
+	  (when (gnus-check-server method)
+	    ;; Request that the backend scan its incoming messages.
+	    (when (gnus-check-backend-function 'request-scan (car method))
+	      (gnus-request-scan nil method))
+	    (cond
+	     ((and (eq gnus-read-active-file 'some)
+		   (gnus-check-backend-function 'retrieve-groups (car method)))
+	      (let ((newsrc (cdr gnus-newsrc-alist))
+		    (gmethod (gnus-server-get-method nil method))
+		    groups info)
+		(while (setq info (pop newsrc))
+		  (when (gnus-server-equal
+			 (gnus-find-method-for-group
+			  (gnus-info-group info) info)
+			 gmethod)
+		    (push (gnus-group-real-name (gnus-info-group info))
+			  groups)))
+		(when groups
+		  (gnus-check-server method)
+		  (setq list-type (gnus-retrieve-groups groups method))
+		  (cond
+		   ((not list-type)
+		    (gnus-error
+		     1.2 "Cannot read partial active file from %s server."
+		     (car method)))
+		   ((eq list-type 'active)
+		    (gnus-active-to-gnus-format method gnus-active-hashtb))
+		   (t
+		    (gnus-groups-to-gnus-format method gnus-active-hashtb))))))
+	     ((null method)
+	      t)
+	     (t
+	      (if (not (gnus-request-list method))
+		  (unless (equal method gnus-message-archive-method)
+		    (gnus-error 1 "Cannot read active file from %s server."
+				(car method)))
+		(gnus-message 5 mesg)
+		(gnus-active-to-gnus-format method gnus-active-hashtb)
+		;; We mark this active file as read.
+		(push method gnus-have-read-active-file)
+		(gnus-message 5 "%sdone" mesg))))))
+	(setq methods (cdr methods))))))
+(defun gnus-ignored-newsgroups-has-to-p ()
+"T only when gnus-ignored-newsgroups includes \"^to\\\\.\" as an element."
+;; note this regexp is the same as:
+;; (concat (regexp-quote "^to\\.") "\\($\\|" (regexp-quote "\\|") "\\)")
+(string-match "\\^to\\\\\\.\\($\\|\\\\|\\)"
+		gnus-ignored-newsgroups))
+;; Read an active file and place the results in `gnus-active-hashtb'.
+(defun gnus-active-to-gnus-format (&optional method hashtb ignore-errors)
+(unless method
+(setq method gnus-select-method))
+(let ((cur (current-buffer))
+	(hashtb (or hashtb
+		    (if (and gnus-active-hashtb
+			     (not (equal method gnus-select-method)))
+			gnus-active-hashtb
+		      (setq gnus-active-hashtb
+			    (if (equal method gnus-select-method)
+				(gnus-make-hashtable
+				 (count-lines (point-min) (point-max)))
+			      (gnus-make-hashtable 4096)))))))
+;; Delete unnecessary lines, cleaned up dmoore@ucsd.edu 31.10.1996
+(goto-char (point-min))
+(cond ((gnus-ignored-newsgroups-has-to-p)
+	   (delete-matching-lines gnus-ignored-newsgroups))
+	  ((string= gnus-ignored-newsgroups "")
+	   (delete-matching-lines "^to\\."))
+	  (t
+	   (delete-matching-lines (concat "^to\\.\\|"
+					  gnus-ignored-newsgroups))))
+;; Make the group names readable as a lisp expression even if they
+;; contain special characters.
+;; Fix by Luc Van Eycken <Luc.VanEycken@esat.kuleuven.ac.be>.
+(goto-char (point-max))
+(while (re-search-backward "[][';?()#]" nil t)
+(insert ?\\))
+;; If these are groups from a foreign select method, we insert the
+;; group prefix in front of the group names.
+(and method (not (gnus-server-equal
+		      (gnus-server-get-method nil method)
+		      (gnus-server-get-method nil gnus-select-method)))
+	 (let ((prefix (gnus-group-prefixed-name "" method)))
+	   (goto-char (point-min))
+	   (while (and (not (eobp))
+		       (progn (insert prefix)
+			      (zerop (forward-line 1)))))))
+;; Store the active file in a hash table.
+(goto-char (point-min))
+(let (group max min)
+(while (not (eobp))
+	(condition-case ()
+	    (progn
+	      (narrow-to-region (point) (gnus-point-at-eol))
+	      ;; group gets set to a symbol interned in the hash table
+	      ;; (what a hack!!) - jwz
+	      (setq group (let ((obarray hashtb)) (read cur)))
+	      (if (and (numberp (setq max (read cur)))
+		       (numberp (setq min (read cur)))
+		       (progn
+			 (skip-chars-forward " \t")
+			 (not
+			  (or (= (following-char) ?=)
+			      (= (following-char) ?x)
+			      (= (following-char) ?j)))))
+		  (progn
+		    (set group (cons min max))
+		    ;; if group is moderated, stick in moderation table
+		    (when (= (following-char) ?m)
+		      (unless gnus-moderated-hashtb
+			(setq gnus-moderated-hashtb (gnus-make-hashtable)))
+		      (gnus-sethash (symbol-name group) t
+				    gnus-moderated-hashtb)))
+		(set group nil)))
+	  (error
+	   (and group
+		(symbolp group)
+		(set group nil))
+	   (unless ignore-errors
+	     (gnus-message 3 "Warning - illegal active: %s"
+			   (buffer-substring
+			    (gnus-point-at-bol) (gnus-point-at-eol))))))
+	(widen)
+	(forward-line 1)))))
+(defun gnus-groups-to-gnus-format (method &optional hashtb)
+;; Parse a "groups" active file.
+(let ((cur (current-buffer))
+	(hashtb (or hashtb
+		    (if (and method gnus-active-hashtb)
+			gnus-active-hashtb
+		      (setq gnus-active-hashtb
+			    (gnus-make-hashtable
+			     (count-lines (point-min) (point-max)))))))
+	(prefix (and method
+		     (not (gnus-server-equal
+			   (gnus-server-get-method nil method)
+			   (gnus-server-get-method nil gnus-select-method)))
+		     (gnus-group-prefixed-name "" method))))
+(goto-char (point-min))
+;; We split this into to separate loops, one with the prefix
+;; and one without to speed the reading up somewhat.
+(if prefix
+	(let (min max opoint group)
+	  (while (not (eobp))
+	    (condition-case ()
+		(progn
+		  (read cur) (read cur)
+		  (setq min (read cur)
+			max (read cur)
+			opoint (point))
+		  (skip-chars-forward " \t")
+		  (insert prefix)
+		  (goto-char opoint)
+		  (set (let ((obarray hashtb)) (read cur))
+		       (cons min max)))
+	      (error (and group (symbolp group) (set group nil))))
+	    (forward-line 1)))
+(let (min max group)
+	(while (not (eobp))
+	  (condition-case ()
+	      (when (= (following-char) ?2)
+		(read cur) (read cur)
+		(setq min (read cur)
+		      max (read cur))
+		(set (setq group (let ((obarray hashtb)) (read cur)))
+		     (cons min max)))
+	    (error (and group (symbolp group) (set group nil))))
+	  (forward-line 1))))))
+(defun gnus-read-newsrc-file (&optional force)
+"Read startup file.
+If FORCE is non-nil, the .newsrc file is read."
+;; Reset variables that might be defined in the .newsrc.eld file.
+(let ((variables gnus-variable-list))
+(while variables
+(set (car variables) nil)
+(setq variables (cdr variables))))
+(let* ((newsrc-file gnus-current-startup-file)
+	 (quick-file (concat newsrc-file ".el")))
+(save-excursion
+;; We always load the .newsrc.eld file.  If always contains
+;; much information that can not be gotten from the .newsrc
+;; file (ticked articles, killed groups, foreign methods, etc.)
+(gnus-read-newsrc-el-file quick-file)
+(when (and (file-exists-p gnus-current-startup-file)
+		 (or force
+		     (and (file-newer-than-file-p newsrc-file quick-file)
+			  (file-newer-than-file-p newsrc-file
+						  (concat quick-file "d")))
+		     (not gnus-newsrc-alist)))
+	;; We read the .newsrc file.  Note that if there if a
+	;; .newsrc.eld file exists, it has already been read, and
+	;; the `gnus-newsrc-hashtb' has been created.  While reading
+	;; the .newsrc file, Gnus will only use the information it
+	;; can find there for changing the data already read -
+	;; i. e., reading the .newsrc file will not trash the data
+	;; already read (except for read articles).
+	(save-excursion
+	  (gnus-message 5 "Reading %s..." newsrc-file)
+	  (set-buffer (nnheader-find-file-noselect newsrc-file))
+	  (buffer-disable-undo (current-buffer))
+	  (gnus-newsrc-to-gnus-format)
+	  (kill-buffer (current-buffer))
+	  (gnus-message 5 "Reading %s...done" newsrc-file)))
+;; Convert old to new.
+(gnus-convert-old-newsrc))))
+(defun gnus-convert-old-newsrc ()
+"Convert old newsrc into the new format, if needed."
+(let ((fcv (and gnus-newsrc-file-version
+		  (gnus-continuum-version gnus-newsrc-file-version))))
+(cond
+;; No .newsrc.eld file was loaded.
+((null fcv) nil)
+;; Gnus 5 .newsrc.eld was loaded.
+((< fcv (gnus-continuum-version "September Gnus v0.1"))
+(gnus-convert-old-ticks)))))
+(defun gnus-convert-old-ticks ()
+(let ((newsrc (cdr gnus-newsrc-alist))
+	marks info dormant ticked)
+(while (setq info (pop newsrc))
+(when (setq marks (gnus-info-marks info))
+	(setq dormant (cdr (assq 'dormant marks))
+	      ticked (cdr (assq 'tick marks)))
+	(when (or dormant ticked)
+	  (gnus-info-set-read
+	   info
+	   (gnus-add-to-range
+	    (gnus-info-read info)
+	    (nconc (gnus-uncompress-range dormant)
+		   (gnus-uncompress-range ticked)))))))))
+(defun gnus-read-newsrc-el-file (file)
+(let ((ding-file (concat file "d")))
+;; We always, always read the .eld file.
+(gnus-message 5 "Reading %s..." ding-file)
+(let (gnus-newsrc-assoc)
+(condition-case nil
+	  (load ding-file t t t)
+	(error
+	 (gnus-error 1 "Error in %s" ding-file)))
+(when gnus-newsrc-assoc
+	(setq gnus-newsrc-alist gnus-newsrc-assoc)))
+(gnus-make-hashtable-from-newsrc-alist)
+(when (file-newer-than-file-p file ding-file)
+;; Old format quick file
+(gnus-message 5 "Reading %s..." file)
+;; The .el file is newer than the .eld file, so we read that one
+;; as well.
+(gnus-read-old-newsrc-el-file file))))
+;; Parse the old-style quick startup file
+(defun gnus-read-old-newsrc-el-file (file)
+(let (newsrc killed marked group m info)
+(prog1
+	(let ((gnus-killed-assoc nil)
+	      gnus-marked-assoc gnus-newsrc-alist gnus-newsrc-assoc)
+	  (prog1
+	      (ignore-errors
+		(load file t t t))
+	    (setq newsrc gnus-newsrc-assoc
+		  killed gnus-killed-assoc
+		  marked gnus-marked-assoc)))
+(setq gnus-newsrc-alist nil)
+(while (setq group (pop newsrc))
+	(if (setq info (gnus-get-info (car group)))
+	    (progn
+	      (gnus-info-set-read info (cddr group))
+	      (gnus-info-set-level
+	       info (if (nth 1 group) gnus-level-default-subscribed
+		      gnus-level-default-unsubscribed))
+	      (push info gnus-newsrc-alist))
+	  (push (setq info
+		      (list (car group)
+			    (if (nth 1 group) gnus-level-default-subscribed
+			      gnus-level-default-unsubscribed)
+			    (cddr group)))
+		gnus-newsrc-alist))
+	;; Copy marks into info.
+	(when (setq m (assoc (car group) marked))
+	  (unless (nthcdr 3 info)
+	    (nconc info (list nil)))
+	  (gnus-info-set-marks
+	   info (list (cons 'tick (gnus-compress-sequence
+				   (sort (cdr m) '<) t))))))
+(setq newsrc killed)
+(while newsrc
+	(setcar newsrc (caar newsrc))
+	(setq newsrc (cdr newsrc)))
+(setq gnus-killed-list killed))
+;; The .el file version of this variable does not begin with
+;; "options", while the .eld version does, so we just add it if it
+;; isn't there.
+(when
+	gnus-newsrc-options
+(when (not (string-match "^ *options" gnus-newsrc-options))
+	(setq gnus-newsrc-options (concat "options " gnus-newsrc-options)))
+(when (not (string-match "\n$" gnus-newsrc-options))
+	(setq gnus-newsrc-options (concat gnus-newsrc-options "\n")))
+;; Finally, if we read some options lines, we parse them.
+(unless (string= gnus-newsrc-options "")
+	(gnus-newsrc-parse-options gnus-newsrc-options)))
+(setq gnus-newsrc-alist (nreverse gnus-newsrc-alist))
+(gnus-make-hashtable-from-newsrc-alist)))
+(defun gnus-make-newsrc-file (file)
+"Make server dependent file name by catenating FILE and server host name."
+(let* ((file (expand-file-name file nil))
+	 (real-file (concat file "-" (nth 1 gnus-select-method))))
+(if (or (file-exists-p real-file)
+	    (file-exists-p (concat real-file ".el"))
+	    (file-exists-p (concat real-file ".eld")))
+	real-file file)))
+(defun gnus-newsrc-to-gnus-format ()
+(setq gnus-newsrc-options "")
+(setq gnus-newsrc-options-n nil)
+(unless gnus-active-hashtb
+(setq gnus-active-hashtb (gnus-make-hashtable 4096)))
+(let ((buf (current-buffer))
+	(already-read (> (length gnus-newsrc-alist) 1))
+	group subscribed options-symbol newsrc Options-symbol
+	symbol reads num1)
+(goto-char (point-min))
+;; We intern the symbol `options' in the active hashtb so that we
+;; can `eq' against it later.
+(set (setq options-symbol (intern "options" gnus-active-hashtb)) nil)
+(set (setq Options-symbol (intern "Options" gnus-active-hashtb)) nil)
+(while (not (eobp))
+;; We first read the first word on the line by narrowing and
+;; then reading into `gnus-active-hashtb'.  Most groups will
+;; already exist in that hashtb, so this will save some string
+;; space.
+(narrow-to-region
+(point)
+(progn (skip-chars-forward "^ \t!:\n") (point)))
+(goto-char (point-min))
+(setq symbol
+	    (and (/= (point-min) (point-max))
+		 (let ((obarray gnus-active-hashtb)) (read buf))))
+(widen)
+;; Now, the symbol we have read is either `options' or a group
+;; name.  If it is an options line, we just add it to a string.
+(cond
+((or (eq symbol options-symbol)
+	    (eq symbol Options-symbol))
+	(setq gnus-newsrc-options
+	      ;; This concating is quite inefficient, but since our
+	      ;; thorough studies show that approx 99.37% of all
+	      ;; .newsrc files only contain a single options line, we
+	      ;; don't give a damn, frankly, my dear.
+	      (concat gnus-newsrc-options
+		      (buffer-substring
+		       (gnus-point-at-bol)
+		       ;; Options may continue on the next line.
+		       (or (and (re-search-forward "^[^ \t]" nil 'move)
+				(progn (beginning-of-line) (point)))
+			   (point)))))
+	(forward-line -1))
+(symbol
+	;; Group names can be just numbers.
+	(when (numberp symbol)
+	  (setq symbol (intern (int-to-string symbol) gnus-active-hashtb)))
+	(unless (boundp symbol)
+	  (set symbol nil))
+	;; It was a group name.
+	(setq subscribed (= (following-char) ?:)
+	      group (symbol-name symbol)
+	      reads nil)
+	(if (eolp)
+	    ;; If the line ends here, this is clearly a buggy line, so
+	    ;; we put point a the beginning of line and let the cond
+	    ;; below do the error handling.
+	    (beginning-of-line)
+	  ;; We skip to the beginning of the ranges.
+	  (skip-chars-forward "!: \t"))
+	;; We are now at the beginning of the list of read articles.
+	;; We read them range by range.
+	(while
+	    (cond
+	     ((looking-at "[0-9]+")
+	      ;; We narrow and read a number instead of buffer-substring/
+	      ;; string-to-int because it's faster.  narrow/widen is
+	      ;; faster than save-restriction/narrow, and save-restriction
+	      ;; produces a garbage object.
+	      (setq num1 (progn
+			   (narrow-to-region (match-beginning 0) (match-end 0))
+			   (read buf)))
+	      (widen)
+	      ;; If the next character is a dash, then this is a range.
+	      (if (= (following-char) ?-)
+		  (progn
+		    ;; We read the upper bound of the range.
+		    (forward-char 1)
+		    (if (not (looking-at "[0-9]+"))
+			;; This is a buggy line, by we pretend that
+			;; it's kinda OK.  Perhaps the user should be
+			;; dinged?
+			(push num1 reads)
+		      (push
+		       (cons num1
+			     (progn
+			       (narrow-to-region (match-beginning 0)
+						 (match-end 0))
+			       (read buf)))
+		       reads)
+		      (widen)))
+		;; It was just a simple number, so we add it to the
+		;; list of ranges.
+		(push num1 reads))
+	      ;; If the next char in ?\n, then we have reached the end
+	      ;; of the line and return nil.
+	      (/= (following-char) ?\n))
+	     ((= (following-char) ?\n)
+	      ;; End of line, so we end.
+	      nil)
+	     (t
+	      ;; Not numbers and not eol, so this might be a buggy
+	      ;; line...
+	      (unless (eobp)
+		;; If it was eob instead of ?\n, we allow it.
+		;; The line was buggy.
+		(setq group nil)
+		(gnus-error 3.1 "Mangled line: %s"
+			    (buffer-substring (gnus-point-at-bol)
+					      (gnus-point-at-eol))))
+	      nil))
+	  ;; Skip past ", ".  Spaces are illegal in these ranges, but
+	  ;; we allow them, because it's a common mistake to put a
+	  ;; space after the comma.
+	  (skip-chars-forward ", "))
+	;; We have already read .newsrc.eld, so we gently update the
+	;; data in the hash table with the information we have just
+	;; read.
+	(when group
+	  (let ((info (gnus-get-info group))
+		level)
+	    (if info
+		;; There is an entry for this file in the alist.
+		(progn
+		  (gnus-info-set-read info (nreverse reads))
+		  ;; We update the level very gently.  In fact, we
+		  ;; only change it if there's been a status change
+		  ;; from subscribed to unsubscribed, or vice versa.
+		  (setq level (gnus-info-level info))
+		  (cond ((and (<= level gnus-level-subscribed)
+			      (not subscribed))
+			 (setq level (if reads
+					 gnus-level-default-unsubscribed
+				       (1+ gnus-level-default-unsubscribed))))
+			((and (> level gnus-level-subscribed) subscribed)
+			 (setq level gnus-level-default-subscribed)))
+		  (gnus-info-set-level info level))
+	      ;; This is a new group.
+	      (setq info (list group
+			       (if subscribed
+				   gnus-level-default-subscribed
+				 (if reads
+				     (1+ gnus-level-subscribed)
+				   gnus-level-default-unsubscribed))
+			       (nreverse reads))))
+	    (push info newsrc)))))
+(forward-line 1))
+(setq newsrc (nreverse newsrc))
+(if (not already-read)
+	()
+;; We now have two newsrc lists - `newsrc', which is what we
+;; have read from .newsrc, and `gnus-newsrc-alist', which is
+;; what we've read from .newsrc.eld.  We have to merge these
+;; lists.  We do this by "attaching" any (foreign) groups in the
+;; gnus-newsrc-alist to the (native) group that precedes them.
+(let ((rc (cdr gnus-newsrc-alist))
+	    (prev gnus-newsrc-alist)
+	    entry mentry)
+	(while rc
+	  (or (null (nth 4 (car rc)))	; It's a native group.
+	      (assoc (caar rc) newsrc)	; It's already in the alist.
+	      (if (setq entry (assoc (caar prev) newsrc))
+		  (setcdr (setq mentry (memq entry newsrc))
+			  (cons (car rc) (cdr mentry)))
+		(push (car rc) newsrc)))
+	  (setq prev rc
+		rc (cdr rc)))))
+(setq gnus-newsrc-alist newsrc)
+;; We make the newsrc hashtb.
+(gnus-make-hashtable-from-newsrc-alist)
+;; Finally, if we read some options lines, we parse them.
+(unless (string= gnus-newsrc-options "")
+(gnus-newsrc-parse-options gnus-newsrc-options))))
+;; Parse options lines to find "options -n !all rec.all" and stuff.
+;; The return value will be a list on the form
+;; ((regexp1 . ignore)
+;;  (regexp2 . subscribe)...)
+;; When handling new newsgroups, groups that match a `ignore' regexp
+;; will be ignored, and groups that match a `subscribe' regexp will be
+;; subscribed.  A line like
+;; options -n !all rec.all
+;; will lead to a list that looks like
+;; (("^rec\\..+" . subscribe)
+;;  ("^.+" . ignore))
+;; So all "rec.*" groups will be subscribed, while all the other
+;; groups will be ignored.  Note that "options -n !all rec.all" is very
+;; different from "options -n rec.all !all".
+(defun gnus-newsrc-parse-options (options)
+(let (out eol)
+(save-excursion
+(gnus-set-work-buffer)
+(insert (regexp-quote options))
+;; First we treat all continuation lines.
+(goto-char (point-min))
+(while (re-search-forward "\n[ \t]+" nil t)
+	(replace-match " " t t))
+;; Then we transform all "all"s into ".+"s.
+(goto-char (point-min))
+(while (re-search-forward "\\ball\\b" nil t)
+	(replace-match ".+" t t))
+(goto-char (point-min))
+;; We remove all other options than the "-n" ones.
+(while (re-search-forward "[ \t]-[^n][^-]*" nil t)
+	(replace-match " ")
+	(forward-char -1))
+(goto-char (point-min))
+;; We are only interested in "options -n" lines - we
+;; ignore the other option lines.
+(while (re-search-forward "[ \t]-n" nil t)
+	(setq eol
+	      (or (save-excursion
+		    (and (re-search-forward "[ \t]-n" (gnus-point-at-eol) t)
+			 (- (point) 2)))
+		  (gnus-point-at-eol)))
+	;; Search for all "words"...
+	(while (re-search-forward "[^ \t,\n]+" eol t)
+	  (if (= (char-after (match-beginning 0)) ?!)
+	      ;; If the word begins with a bang (!), this is a "not"
+	      ;; spec.  We put this spec (minus the bang) and the
+	      ;; symbol `ignore' into the list.
+	      (push (cons (concat
+			   "^" (buffer-substring
+				(1+ (match-beginning 0))
+				(match-end 0)))
+			  'ignore)
+		    out)
+	    ;; There was no bang, so this is a "yes" spec.
+	    (push (cons (concat "^" (match-string 0))
+			'subscribe)
+		  out))))
+(setq gnus-newsrc-options-n out))))
+(defun gnus-save-newsrc-file (&optional force)
+"Save .newsrc file."
+;; Note: We cannot save .newsrc file if all newsgroups are removed
+;; from the variable gnus-newsrc-alist.
+(when (and (or gnus-newsrc-alist gnus-killed-list)
+	     gnus-current-startup-file)
+(save-excursion
+(if (and (or gnus-use-dribble-file gnus-slave)
+	       (not force)
+	       (or (not gnus-dribble-buffer)
+		   (not (buffer-name gnus-dribble-buffer))
+		   (zerop (save-excursion
+			    (set-buffer gnus-dribble-buffer)
+			    (buffer-size)))))
+	  (gnus-message 4 "(No changes need to be saved)")
+	(run-hooks 'gnus-save-newsrc-hook)
+	(if gnus-slave
+	    (gnus-slave-save-newsrc)
+	  ;; Save .newsrc.
+	  (when gnus-save-newsrc-file
+	    (gnus-message 5 "Saving %s..." gnus-current-startup-file)
+	    (gnus-gnus-to-newsrc-format)
+	    (gnus-message 5 "Saving %s...done" gnus-current-startup-file))
+	  ;; Save .newsrc.eld.
+	  (set-buffer (get-buffer-create " *Gnus-newsrc*"))
+	  (make-local-variable 'version-control)
+	  (setq version-control 'never)
+	  (setq buffer-file-name
+		(concat gnus-current-startup-file ".eld"))
+	  (setq default-directory (file-name-directory buffer-file-name))
+	  (gnus-add-current-to-buffer-list)
+	  (buffer-disable-undo (current-buffer))
+	  (erase-buffer)
+	  (gnus-message 5 "Saving %s.eld..." gnus-current-startup-file)
+	  (gnus-gnus-to-quick-newsrc-format)
+	  (run-hooks 'gnus-save-quick-newsrc-hook)
+	  (save-buffer)
+	  (kill-buffer (current-buffer))
+	  (gnus-message
+	   5 "Saving %s.eld...done" gnus-current-startup-file))
+	(gnus-dribble-delete-file)
+	(gnus-group-set-mode-line)))))
+(defun gnus-gnus-to-quick-newsrc-format ()
+"Insert Gnus variables such as gnus-newsrc-alist in lisp format."
+(let ((print-quoted t))
+(insert ";; -*- emacs-lisp -*-\n")
+(insert ";; Gnus startup file.\n")
+(insert
+";; Never delete this file - touch .newsrc instead to force Gnus\n")
+(insert ";; to read .newsrc.\n")
+(insert "(setq gnus-newsrc-file-version "
+	    (prin1-to-string gnus-version) ")\n")
+(let* ((gnus-killed-list
+	    (if (and gnus-save-killed-list
+		     (stringp gnus-save-killed-list))
+		(gnus-strip-killed-list)
+	      gnus-killed-list))
+	   (variables
+	    (if gnus-save-killed-list gnus-variable-list
+	      ;; Remove the `gnus-killed-list' from the list of variables
+	      ;; to be saved, if required.
+	      (delq 'gnus-killed-list (copy-sequence gnus-variable-list))))
+	   ;; Peel off the "dummy" group.
+	   (gnus-newsrc-alist (cdr gnus-newsrc-alist))
+	   variable)
+;; Insert the variables into the file.
+(while variables
+	(when (and (boundp (setq variable (pop variables)))
+		   (symbol-value variable))
+	  (insert "(setq " (symbol-name variable) " '")
+	  (gnus-prin1 (symbol-value variable))
+	  (insert ")\n"))))))
+(defun gnus-strip-killed-list ()
+"Return the killed list minus the groups that match `gnus-save-killed-list'."
+(let ((list gnus-killed-list)
+	olist)
+(while list
+(when (string-match gnus-save-killed-list)
+	(push (car list) olist))
+(pop list))
+(nreverse olist)))
+(defun gnus-gnus-to-newsrc-format ()
+;; Generate and save the .newsrc file.
+(save-excursion
+(set-buffer (create-file-buffer gnus-current-startup-file))
+(let ((newsrc (cdr gnus-newsrc-alist))
+	  (standard-output (current-buffer))
+	  info ranges range method)
+(setq buffer-file-name gnus-current-startup-file)
+(setq default-directory (file-name-directory buffer-file-name))
+(buffer-disable-undo (current-buffer))
+(erase-buffer)
+;; Write options.
+(when gnus-newsrc-options
+	(insert gnus-newsrc-options))
+;; Write subscribed and unsubscribed.
+(while (setq info (pop newsrc))
+	;; Don't write foreign groups to .newsrc.
+	(when (or (null (setq method (gnus-info-method info)))
+		  (equal method "native")
+		  (gnus-server-equal method gnus-select-method))
+	  (insert (gnus-info-group info)
+		  (if (> (gnus-info-level info) gnus-level-subscribed)
+		      "!" ":"))
+	  (when (setq ranges (gnus-info-read info))
+	    (insert " ")
+	    (if (not (listp (cdr ranges)))
+		(if (= (car ranges) (cdr ranges))
+		    (princ (car ranges))
+		  (princ (car ranges))
+		  (insert "-")
+		  (princ (cdr ranges)))
+	      (while (setq range (pop ranges))
+		(if (or (atom range) (= (car range) (cdr range)))
+		    (princ (or (and (atom range) range) (car range)))
+		  (princ (car range))
+		  (insert "-")
+		  (princ (cdr range)))
+		(when ranges
+		  (insert ",")))))
+	  (insert "\n")))
+(make-local-variable 'version-control)
+(setq version-control 'never)
+;; It has been reported that sometime the modtime on the .newsrc
+;; file seems to be off.  We really do want to overwrite it, so
+;; we clear the modtime here before saving.  It's a bit odd,
+;; though...
+;; sometimes the modtime clear isn't sufficient.  most brute force:
+;; delete the silly thing entirely first.  but this fails to provide
+;; such niceties as .newsrc~ creation.
+(if gnus-modtime-botch
+	  (delete-file gnus-startup-file)
+	(clear-visited-file-modtime))
+(run-hooks 'gnus-save-standard-newsrc-hook)
+(save-buffer)
+(kill-buffer (current-buffer)))))
+;;;
+;;; Slave functions.
+;;;
+(defun gnus-slave-save-newsrc ()
+(save-excursion
+(set-buffer gnus-dribble-buffer)
+(let ((slave-name
+	   (make-temp-name (concat gnus-current-startup-file "-slave-"))))
+(gnus-write-buffer slave-name))))
+(defun gnus-master-read-slave-newsrc ()
+(let ((slave-files
+	 (directory-files
+	  (file-name-directory gnus-current-startup-file)
+	  t (concat
+	     "^" (regexp-quote
+		  (concat
+		   (file-name-nondirectory gnus-current-startup-file)
+		   "-slave-")))
+	  t))
+	file)
+(if (not slave-files)
+	()				; There are no slave files to read.
+(gnus-message 7 "Reading slave newsrcs...")
+(save-excursion
+	(set-buffer (get-buffer-create " *gnus slave*"))
+	(buffer-disable-undo (current-buffer))
+	(setq slave-files
+	      (sort (mapcar (lambda (file)
+			      (list (nth 5 (file-attributes file)) file))
+			    slave-files)
+		    (lambda (f1 f2)
+		      (or (< (caar f1) (caar f2))
+			  (< (nth 1 (car f1)) (nth 1 (car f2)))))))
+	(while slave-files
+	  (erase-buffer)
+	  (setq file (nth 1 (car slave-files)))
+	  (insert-file-contents file)
+	  (when (condition-case ()
+		    (progn
+		      (eval-buffer (current-buffer))
+		      t)
+		  (error
+		   (gnus-error 3.2 "Possible error in %s" file)
+		   nil))
+	    (unless gnus-slave		; Slaves shouldn't delete these files.
+	      (ignore-errors
+		(delete-file file))))
+	  (setq slave-files (cdr slave-files))))
+(gnus-dribble-touch)
+(gnus-message 7 "Reading slave newsrcs...done"))))
+;;;
+;;; Group description.
+;;;
+(defun gnus-read-all-descriptions-files ()
+(let ((methods (cons gnus-select-method
+		       (nconc
+			(when (gnus-archive-server-wanted-p)
+			  (list "archive"))
+			gnus-secondary-select-methods))))
+(while methods
+(gnus-read-descriptions-file (car methods))
+(setq methods (cdr methods)))
+t))
+(defun gnus-read-descriptions-file (&optional method)
+(let ((method (or method gnus-select-method))
+	group)
+(when (stringp method)
+(setq method (gnus-server-to-method method)))
+;; We create the hashtable whether we manage to read the desc file
+;; to avoid trying to re-read after a failed read.
+(unless gnus-description-hashtb
+(setq gnus-description-hashtb
+	    (gnus-make-hashtable (length gnus-active-hashtb))))
+;; Mark this method's desc file as read.
+(gnus-sethash (gnus-group-prefixed-name "" method) "Has read"
+		  gnus-description-hashtb)
+(gnus-message 5 "Reading descriptions file via %s..." (car method))
+(cond
+((not (gnus-check-server method))
+(gnus-message 1 "Couldn't open server")
+nil)
+((not (gnus-request-list-newsgroups method))
+(gnus-message 1 "Couldn't read newsgroups descriptions")
+nil)
+(t
+(save-excursion
+	(save-restriction
+	  (set-buffer nntp-server-buffer)
+	  (goto-char (point-min))
+	  (when (or (search-forward "\n.\n" nil t)
+		    (goto-char (point-max)))
+	    (beginning-of-line)
+	    (narrow-to-region (point-min) (point)))
+	  ;; If these are groups from a foreign select method, we insert the
+	  ;; group prefix in front of the group names.
+	  (and method (not (gnus-server-equal
+			    (gnus-server-get-method nil method)
+			    (gnus-server-get-method nil gnus-select-method)))
+	       (let ((prefix (gnus-group-prefixed-name "" method)))
+		 (goto-char (point-min))
+		 (while (and (not (eobp))
+			     (progn (insert prefix)
+				    (zerop (forward-line 1)))))))
+	  (goto-char (point-min))
+	  (while (not (eobp))
+	    ;; If we get an error, we set group to 0, which is not a
+	    ;; symbol...
+	    (setq group
+		  (condition-case ()
+		      (let ((obarray gnus-description-hashtb))
+			;; Group is set to a symbol interned in this
+			;; hash table.
+			(read nntp-server-buffer))
+		    (error 0)))
+	    (skip-chars-forward " \t")
+	    ;; ...  which leads to this line being effectively ignored.
+	    (when (symbolp group)
+	      (set group (buffer-substring
+			  (point) (progn (end-of-line) (point)))))
+	    (forward-line 1))))
+(gnus-message 5 "Reading descriptions file...done")
+t))))
+(defun gnus-group-get-description (group)
+"Get the description of a group by sending XGTITLE to the server."
+(when (gnus-request-group-description group)
+(save-excursion
+(set-buffer nntp-server-buffer)
+(goto-char (point-min))
+(when (looking-at "[^ \t]+[ \t]+\\(.*\\)")
+	(match-string 1)))))
+;;;###autoload
+(defun gnus-declare-backend (name &rest abilities)
+"Declare backend NAME with ABILITIES as a Gnus backend."
+(setq gnus-valid-select-methods
+	(nconc gnus-valid-select-methods
+	       (list (apply 'list name abilities)))))
+(defun gnus-set-default-directory ()
+"Set the default directory in the current buffer to `gnus-default-directory'.
+If this variable is nil, don't do anything."
+(setq default-directory
+	(if (and gnus-default-directory
+		 (file-exists-p gnus-default-directory))
+	    (file-name-as-directory (expand-file-name gnus-default-directory))
+	  default-directory)))
+(provide 'gnus-start)
+;;; gnus-start.el ends here

Mercurial > hg > xemacs-beta

comparison lisp/gnus/gnus-start.el @ 98:0d2f883870bc r20-1b1