-;;; GNUS: an NNTP-based News Reader for GNU Emacs
-;; Copyright (C) 1987, 1988, 1989, 1990, 1993 Free Software Foundation, Inc.
-;; $Header: /home/fsf/rms/e19/lisp/RCS/gnus.el,v 1.22 1993/06/29 23:03:21 jimb Exp rms $
-
-;; 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, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-;;; Commentary:
-
-;; How to Install GNUS:
-;; (0) First of all, remove GNUS related OLD *.elc files (at least
-;; nntp.elc).
-;; (1) Unshar gnus.el, gnuspost.el, gnusmail.el, gnusmisc.el, and
-;; nntp.el.
-;; (2) byte-compile-file nntp.el, gnus.el, gnuspost.el, gnusmail.el,
-;; and gnusmisc.el. If you have a local news spool,
-;; byte-compile-file nnspool.el, too.
-;; (3) Define three environment variables in .login file as follows:
-;;
-;; setenv NNTPSERVER flab
-;; setenv DOMAINNAME "stars.flab.Fujitsu.CO.JP"
-;; setenv ORGANIZATION "Fujitsu Laboratories Ltd., Kawasaki, Japan."
-;;
-;; Or instead, define lisp variables in your .emacs, site-init.el,
-;; or default.el as follows:
-;;
-;; (setq gnus-nntp-server "flab")
-;; (setq gnus-local-domain "stars.flab.Fujitsu.CO.JP")
-;; (setq gnus-local-organization "Fujitsu Laboratories Ltd., ...")
-;;
-;; If the function (system-name) returns the full internet name,
-;; you don't have to define the domain.
-;;
-;; (4) You may have to define NNTP service name as number 119.
-;;
-;; (setq gnus-nntp-service 119)
-;;
-;; Or, if you'd like to use a local news spool directly in stead
-;; of NNTP, install nnspool.el and set the variable to nil as
-;; follows:
-;;
-;; (setq gnus-nntp-service nil)
-;;
-;; (5) If you'd like to use the GENERICFROM feature like the Bnews,
-;; define the variable as follows:
-;;
-;; (setq gnus-use-generic-from t)
-;;
-;; (6) Define autoload entries in .emacs file as follows:
-;;
-;; (autoload 'gnus "gnus" "Read network news." t)
-;; (autoload 'gnus-post-news "gnuspost" "Post a news." t)
-;;
-;; (7) Read nntp.el if you have problems with NNTP or kanji handling.
-;;
-;; (8) Install mhspool.el, tcp.el, and tcp.c if it is necessary.
-;;
-;; mhspool.el is a package for reading articles or mail in your
-;; private directory using GNUS.
-;;
-;; tcp.el and tcp.c are necessary if and only if your Emacs does
-;; not have the function `open-network-stream' which is used for
-;; communicating with NNTP server inside Emacs.
-;;
-;; (9) Install an Info file generated from the texinfo manual gnus.texinfo.
-;;
-;; If you are not allowed to create the Info file to the standard
-;; Info-directory, create it in your private directory and set the
-;; variable gnus-info-directory to that directory.
-
-;; GNUS Mailing List:
-;; There are two mailing lists for GNUS lovers in the world:
-;;
-;; info-gnus@flab.fujitsu.co.jp, and
-;; info-gnus-english@tut.cis.ohio-state.edu.
-;;
-;; They are intended to exchange useful information about GNUS, such
-;; as bug fixes, useful hooks, and extensions. The major difference
-;; between the lists is what the official language is. Both Japanese
-;; and English are available in info-gnus, while English is only
-;; available in info-gnus-english. There is no need to subscribe to
-;; info-gnus if you cannot read Japanese messages, because most of the
-;; discussion and important announcements will be sent to
-;; info-gnus-english. Moreover, if you can read gnu.emacs.gnus
-;; newsgroup of USENET, you need not, either. info-gnus-english and
-;; gnu.emacs.gnus are linked each other.
-;;
-;; Please send subscription request to:
-;;
-;; info-gnus-request@flab.fujitsu.co.jp, or
-;; info-gnus-english-request@cis.ohio-state.edu
-
-;; TO DO:
-;; (1) Incremental update of active info.
-;; (2) GNUS own poster.
-;; (3) Multi-GNUS (Talking to many hosts same time).
-;; (4) Asynchronous transmission of large messages.
-
-(provide 'gnus)
-(require 'nntp)
-(require 'mail-utils)
-
-(defvar gnus-nntp-server (or (getenv "NNTPSERVER") gnus-default-nntp-server)
- "*The name of the host running NNTP server.
-If it is a string such as `:DIRECTORY', the user's private DIRECTORY
-is used as a news spool.
-Initialized from the NNTPSERVER environment variable.")
-
-(defvar gnus-nntp-service "nntp"
- "*NNTP service name (\"nntp\" or 119).
-Go to a local news spool if its value is nil.")
-
-(defvar gnus-startup-file "~/.newsrc"
- "*Your .newsrc file. Use `.newsrc-SERVER' instead if exists.")
-
-(defvar gnus-signature-file "~/.signature"
- "*Your .signature file. Use `.signature-DISTRIBUTION' instead if exists.")
-
-(defvar gnus-use-cross-reference t
- "*Specifies what to do with cross references (Xref: field).
-If nil, ignore cross references. If t, mark articles as read in
-subscribed newsgroups. Otherwise, if not nil nor t, mark articles as
-read in all newsgroups.")
-
-(defvar gnus-use-followup-to t
- "*Specifies what to do with Followup-To: field.
-If nil, ignore followup-to: field. If t, use its value except for
-`poster'. Otherwise, if not nil nor t, always use its value.")
-
-(defvar gnus-large-newsgroup 50
- "*The number of articles which indicates a large newsgroup.
-If the number of articles in a newsgroup is greater than the value,
-confirmation is required for selecting the newsgroup.")
-
-(defvar gnus-author-copy (getenv "AUTHORCOPY")
- "*File name saving a copy of an article posted using FCC: field.
-Initialized from the AUTHORCOPY environment variable.
-
-Articles are saved using a function specified by the the variable
-gnus-author-copy-saver (rmail-output is default) if a file name is
-given. Instead, if the first character of the name is `|', the
-contents of the article is piped out to the named program. It is
-possible to save an article in an MH folder as follows:
-
-(setq gnus-author-copy \"|/usr/local/lib/mh/rcvstore +Article\")")
-
-(defvar gnus-author-copy-saver (function rmail-output)
- "*A function called with a file name to save an author copy to.
-The default function is `rmail-output' which saves in Unix mailbox format.")
-
-(defvar gnus-use-long-file-name
- (not (memq system-type '(usg-unix-v xenix)))
- "*Non-nil means that a newsgroup name is used as a default file name
-to save articles to. If it's nil, the directory form of a newsgroup is
-used instead.")
-
-(defvar gnus-article-save-directory (getenv "SAVEDIR")
- "*A directory name to save articles to (default to ~/News).
-Initialized from the SAVEDIR environment variable.")
-
-(defvar gnus-default-article-saver (function gnus-summary-save-in-rmail)
- "*A function to save articles in your favorite format.
-The function must be interactively callable (in other words, it must
-be an Emacs command).
-
-GNUS provides the following functions:
- gnus-summary-save-in-rmail (in Rmail format)
- gnus-summary-save-in-mail (in Unix mail format)
- gnus-summary-save-in-folder (in an MH folder)
- gnus-summary-save-in-file (in article format).")
-
-(defvar gnus-rmail-save-name (function gnus-plain-save-name)
- "*A function generating a file name to save articles in Rmail format.
-The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE.")
-
-(defvar gnus-mail-save-name (function gnus-plain-save-name)
- "*A function generating a file name to save articles in Unix mail format.
-The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE.")
-
-(defvar gnus-folder-save-name (function gnus-folder-save-name)
- "*A function generating a file name to save articles in MH folder.
-The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER.")
-
-(defvar gnus-file-save-name (function gnus-numeric-save-name)
- "*A function generating a file name to save articles in article format.
-The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE.")
-
-(defvar gnus-kill-file-name "KILL"
- "*File name of a KILL file.")
-
-(defvar gnus-novice-user t
- "*Non-nil means that you are a novice to USENET. If non-nil,
-verbose messages may be displayed or your confirmations may be required.")
-
-(defvar gnus-interactive-catchup t
- "*Require your confirmation when catching up a newsgroup if non-nil.")
-
-(defvar gnus-interactive-post t
- "*Newsgroup, subject, and distribution will be asked for if non-nil.")
-
-(defvar gnus-interactive-exit t
- "*Require your confirmation when exiting gnus if non-nil.")
-
-(defvar gnus-user-login-name nil
- "*The login name of the user.
-Got from the USER and LOGNAME environment variable if undefined.")
-
-(defvar gnus-user-full-name nil
- "*The full name of the user.
-Got from the NAME environment variable if undefined.")
-
-(defvar gnus-show-mime nil
- "*Show MIME message if non-nil.")
-
-(defvar gnus-show-threads t
- "*Show conversation threads in Summary Mode if non-nil.")
-
-(defvar gnus-thread-hide-subject t
- "*Non-nil means hide subjects for thread subtrees.")
-
-(defvar gnus-thread-hide-subtree nil
- "*Non-nil means hide thread subtrees initially.
-If non-nil, you have to run the command gnus-summary-show-thread by
-hand or by using gnus-select-article-hook to show hidden threads.")
-
-(defvar gnus-thread-hide-killed t
- "*Non-nil means hide killed thread subtrees automatically.")
-
-(defvar gnus-thread-ignore-subject nil
- "*Don't take care of subject differences, but only references if non-nil.
-If it is non-nil, some commands work with subjects do not work properly.")
-
-(defvar gnus-thread-indent-level 4
- "*Indentation of thread subtrees.")
-
-(defvar gnus-ignored-newsgroups "^to\\..*$"
- "*A regular expression used to ignore uninterested 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 invisible.")
-
-(defvar gnus-ignored-headers
- "^Path:\\|^Posting-Version:\\|^Article-I.D.:\\|^Expires:\\|^Date-Received:\\|^References:\\|^Control:\\|^Xref:\\|^Lines:\\|^Posted:\\|^Relay-Version:\\|^Message-ID:\\|^Nf-ID:\\|^Nf-From:\\|^Approved:\\|^Sender:"
- "*All random fields within the header of a message.")
-
-(defvar gnus-required-headers
- '(From Date Newsgroups Subject Message-ID Path Organization Distribution)
- "*All required fields for articles you post.
-RFC977 and RFC1036 require From, Date, Newsgroups, Subject, Message-ID
-and Path fields. Organization, Distribution and Lines are optional.
-If you want GNUS not to insert some field, remove it from the
-variable.")
-
-(defvar gnus-show-all-headers nil
- "*Show all headers of an article if non-nil.")
-
-(defvar gnus-save-all-headers t
- "*Save all headers of an article if non-nil.")
-
-(defvar gnus-optional-headers (function gnus-optional-lines-and-from)
- "*A function generating a optional string displayed in GNUS Summary
-mode buffer. The function is called with an article HEADER. The
-result must be a string excluding `[' and `]'.")
-
-(defvar gnus-auto-extend-newsgroup t
- "*Extend visible articles to forward and backward if non-nil.")
-
-(defvar gnus-auto-select-first t
- "*Select the first unread article automagically if non-nil.
-If you want to prevent automatic selection of the first unread article
-in some newsgroups, set the variable to nil in gnus-select-group-hook
-or gnus-apply-kill-hook.")
-
-(defvar gnus-auto-select-next t
- "*Select the next newsgroup automagically if non-nil.
-If the value is t and the next newsgroup is empty, GNUS will exit
-Summary mode and go back to Group mode. If the value is neither nil
-nor t, GNUS will select the following unread newsgroup. Especially, if
-the value is the symbol `quietly', the next unread newsgroup will be
-selected without any confirmations.")
-
-(defvar gnus-auto-select-same nil
- "*Select the next article with the same subject automagically if non-nil.")
-
-(defvar gnus-auto-center-summary t
- "*Always center the current summary in GNUS Summary window if non-nil.")
-
-(defvar gnus-auto-mail-to-author nil
- "*Insert `To: author' of the article when following up if non-nil.
-Mail is sent using the function specified by the variable
-gnus-mail-send-method.")
-
-(defvar gnus-break-pages t
- "*Break an article into pages if non-nil.
-Page delimiter is specified by the variable `gnus-page-delimiter'.")
-
-(defvar gnus-page-delimiter "^\^L"
- "*Regexp describing line-beginnings that separate pages of news article.")
-
-(defvar gnus-digest-show-summary t
- "*Show a summary of undigestified messages if non-nil.")
-
-(defvar gnus-digest-separator "^Subject:[ \t]"
- "*Regexp that separates messages in a digest article.")
-
-(defvar gnus-use-full-window t
- "*Non-nil means to take up the entire screen of Emacs.")
-
-(defvar gnus-window-configuration
- '((summary (0 1 0))
- (newsgroups (1 0 0))
- (article (0 3 10)))
- "*Specify window configurations for each action.
-The format of the variable is a list of (ACTION (G S A)), where G, S,
-and A are the relative height of Group, Summary, and Article windows,
-respectively. ACTION is `summary', `newsgroups', or `article'.")
-
-(defvar gnus-show-mime-method (function metamail-buffer)
- "*Function to process a MIME message.
-The function is expected to process current buffer as a MIME message.")
-
-(defvar gnus-mail-reply-method
- (function gnus-mail-reply-using-mail)
- "*Function to compose reply mail.
-The function gnus-mail-reply-using-mail uses usual sendmail mail
-program. The function gnus-mail-reply-using-mhe uses mh-e mail
-program. You can use yet another program by customizing this variable.")
-
-(defvar gnus-mail-forward-method
- (function gnus-mail-forward-using-mail)
- "*Function to forward current message to another user.
-The function gnus-mail-reply-using-mail uses usual sendmail mail
-program. You can use yet another program by customizing this variable.")
-
-(defvar gnus-mail-other-window-method
- (function gnus-mail-other-window-using-mail)
- "*Function to compose mail in other window.
-The function gnus-mail-other-window-using-mail uses usual sendmail
-mail program. The function gnus-mail-other-window-using-mhe uses mh-e
-mail program. You can use yet another program by customizing this variable.")
-
-(defvar gnus-mail-send-method send-mail-function
- "*Function to mail a message too which is being posted as an article.
-The message must have To: or Cc: field. The value of the variable
-send-mail-function is the default function which uses sendmail mail
-program.")
-
-(defvar gnus-subscribe-newsgroup-method
- (function gnus-subscribe-alphabetically)
- "*Function called with a newsgroup name when new newsgroup is found.
-The function gnus-subscribe-randomly inserts a new newsgroup a the
-beginning of newsgroups. The function gnus-subscribe-alphabetically
-inserts it in strict alphabetic order. The function
-gnus-subscribe-hierarchically inserts it in hierarchical newsgroup
-order. The function gnus-subscribe-interactively asks for your decision.")
-
-(defvar gnus-group-mode-hook nil
- "*A hook for GNUS Group Mode.")
-
-(defvar gnus-summary-mode-hook nil
- "*A hook for GNUS Summary Mode.")
-
-(defvar gnus-article-mode-hook nil
- "*A hook for GNUS Article Mode.")
-
-(defvar gnus-kill-file-mode-hook nil
- "*A hook for GNUS KILL File Mode.")
-
-(defvar gnus-open-server-hook nil
- "*A hook called just before opening connection to news server.")
-
-(defvar gnus-startup-hook nil
- "*A hook called at start up time.
-This hook is called after GNUS is connected to the NNTP server. So, it
-is possible to change the behavior of GNUS according to the selected
-NNTP server.")
-
-(defvar gnus-group-prepare-hook nil
- "*A hook called after newsgroup list is created in the Newsgroup buffer.
-If you want to modify the Newsgroup buffer, you can use this hook.")
-
-(defvar gnus-summary-prepare-hook nil
- "*A hook called after summary list is created in the Summary buffer.
-If you want to modify the Summary buffer, you can use this hook.")
-
-(defvar gnus-article-prepare-hook nil
- "*A hook called after an article is prepared in the Article buffer.
-If you want to run a special decoding program like nkf, use this hook.")
-
-(defvar gnus-select-group-hook nil
- "*A hook called when a newsgroup is selected.
-If you want to sort Summary buffer by date and then by subject, you
-can use the following hook:
-
-(setq gnus-select-group-hook
- (function
- (lambda ()
- ;; First of all, sort by date.
- (gnus-keysort-headers
- (function string-lessp)
- (function
- (lambda (a)
- (gnus-sortable-date (gnus-header-date a)))))
- ;; Then sort by subject string ignoring `Re:'.
- ;; If case-fold-search is non-nil, case of letters is ignored.
- (gnus-keysort-headers
- (function string-lessp)
- (function
- (lambda (a)
- (if case-fold-search
- (downcase (gnus-simplify-subject (gnus-header-subject a) t))
- (gnus-simplify-subject (gnus-header-subject a) t)))))
- )))
-
-If you'd like to simplify subjects like the
-`gnus-summary-next-same-subject' command does, you can use the
-following hook:
-
-(setq gnus-select-group-hook
- (function
- (lambda ()
- (mapcar (function
- (lambda (header)
- (nntp-set-header-subject
- header
- (gnus-simplify-subject
- (gnus-header-subject header) 're-only))))
- gnus-newsgroup-headers))))
-
-In some newsgroups author name is meaningless. It is possible to
-prevent listing author names in GNUS Summary buffer as follows:
-
-(setq gnus-select-group-hook
- (function
- (lambda ()
- (cond ((string-equal \"comp.sources.unix\" gnus-newsgroup-name)
- (setq gnus-optional-headers
- (function gnus-optional-lines)))
- (t
- (setq gnus-optional-headers
- (function gnus-optional-lines-and-from)))))))")
-
-(defvar gnus-select-article-hook
- (function (lambda () (gnus-summary-show-thread)))
- "*A hook called when an article is selected.
-The default hook shows conversation thread subtrees of the selected
-article automatically as follows:
-
-(setq gnus-select-article-hook
- (function
- (lambda ()
- (gnus-summary-show-thread))))
-
-If you'd like to run RMAIL on a digest article automagically, you can
-use the following hook:
-
-(setq gnus-select-article-hook
- (function
- (lambda ()
- (gnus-summary-show-thread)
- (cond ((string-equal \"comp.sys.sun\" gnus-newsgroup-name)
- (gnus-summary-rmail-digest))
- ((and (string-equal \"comp.text\" gnus-newsgroup-name)
- (string-match \"^TeXhax Digest\"
- (gnus-header-subject gnus-current-headers)))
- (gnus-summary-rmail-digest)
- )))))")
-
-(defvar gnus-select-digest-hook
- (function
- (lambda ()
- ;; Reply-To: is required by `undigestify-rmail-message'.
- (or (mail-position-on-field "Reply-to" t)
- (progn
- (mail-position-on-field "Reply-to")
- (insert (gnus-fetch-field "From"))))))
- "*A hook called when reading digest messages using Rmail.
-This hook can be used to modify incomplete digest articles as follows
-(this is the default):
-
-(setq gnus-select-digest-hook
- (function
- (lambda ()
- ;; Reply-To: is required by `undigestify-rmail-message'.
- (or (mail-position-on-field \"Reply-to\" t)
- (progn
- (mail-position-on-field \"Reply-to\")
- (insert (gnus-fetch-field \"From\")))))))")
-
-(defvar gnus-rmail-digest-hook nil
- "*A hook called when reading digest messages using Rmail.
-This hook is intended to customize Rmail mode for reading digest articles.")
-
-(defvar gnus-apply-kill-hook (function gnus-apply-kill-file)
- "*A hook called when a newsgroup is selected and summary list is prepared.
-This hook is intended to apply a KILL file to the selected newsgroup.
-The function `gnus-apply-kill-file' is called defaultly.
-
-Since a general KILL file is too heavy to use only for a few
-newsgroups, I recommend you to use a lighter hook function. For
-example, if you'd like to apply a KILL file to articles which contains
-a string `rmgroup' in subject in newsgroup `control', you can use the
-following hook:
-
-(setq gnus-apply-kill-hook
- (function
- (lambda ()
- (cond ((string-match \"control\" gnus-newsgroup-name)
- (gnus-kill \"Subject\" \"rmgroup\")
- (gnus-expunge \"X\"))))))")
-
-(defvar gnus-mark-article-hook
- (function
- (lambda ()
- (or (memq gnus-current-article gnus-newsgroup-marked)
- (gnus-summary-mark-as-read gnus-current-article))
- (gnus-summary-set-current-mark "+")))
- "*A hook called when an article is selected at the first time.
-The hook is intended to mark an article as read (or unread)
-automatically when it is selected.
-
-If you'd like to mark as unread (-) instead, use the following hook:
-
-(setq gnus-mark-article-hook
- (function
- (lambda ()
- (gnus-summary-mark-as-unread gnus-current-article)
- (gnus-summary-set-current-mark \"+\"))))")
-
-(defvar gnus-prepare-article-hook (list (function gnus-inews-insert-signature))
- "*A hook called after preparing body, but before preparing header fields.
-The default hook (`gnus-inews-insert-signature') inserts a signature
-file specified by the variable `gnus-signature-file'.")
-
-(defvar gnus-inews-article-hook (list (function gnus-inews-do-fcc))
- "*A hook called before finally posting an article.
-The default hook (`gnus-inews-do-fcc') does FCC processing (save article
-to a file).")
-
-(defvar gnus-exit-group-hook nil
- "*A hook called when exiting (not quitting) Summary mode.
-If your machine is so slow that exiting from Summary mode takes very
-long time, set the variable `gnus-use-cross-reference' to nil. This
-inhibits marking articles as read using cross-reference information.")
-
-(defvar gnus-suspend-gnus-hook nil
- "*A hook called when suspending (not exiting) GNUS.")
-
-(defvar gnus-exit-gnus-hook nil
- "*A hook called when exiting (not suspending) GNUS.")
-
-(defvar gnus-save-newsrc-hook nil
- "*A hook called when saving the newsrc file.
-This hook is called before saving the `.newsrc' file.")
-
-\f
-;; Site dependent variables. You have to define these variables in
-;; site-init.el, default.el or your .emacs.
-
-(defvar gnus-local-timezone nil
- "*Local time zone.
-This value is used only if `current-time-zone' does not work in your Emacs.
-It specifies the GMT offset, i.e. a decimal integer
-of the form +-HHMM giving the hours and minutes ahead of (i.e. east of) GMT.
-For example, +0900 should be used in Japan, since it is 9 hours ahead of GMT.
-
-For backwards compatibility, it may also be a string like \"JST\",
-but strings are obsolescent: you should use numeric offsets instead.")
-
-(defvar gnus-local-domain nil
- "*Local domain name without a host name like: \"stars.flab.Fujitsu.CO.JP\"
-The `DOMAINNAME' environment variable is used instead if defined. If
-the function (system-name) returns the full internet name, there is no
-need to define the name.")
-
-(defvar gnus-local-organization nil
- "*Local organization like: \"Fujitsu Laboratories Ltd., Kawasaki, Japan.\"
-The `ORGANIZATION' environment variable is used instead if defined.")
-
-(defvar gnus-local-distributions '("local" "world")
- "*List of distributions.
-The first element in the list is used as default. If distributions
-file is available, its content is also used.")
-
-(defvar gnus-use-generic-from nil
- "*If nil, prepend local host name to the defined domain in the From:
-field; if stringp, use this; if non-nil, strip of the local host name.")
-
-(defvar gnus-use-generic-path nil
- "*If nil, use the NNTP server name in the Path: field; if stringp,
-use this; if non-nil, use no host name (user name only)")
-\f
-;; Internal variables.
-
-(defconst gnus-version "GNUS 3.15"
- "Version numbers of this version of GNUS.")
-
-(defvar gnus-info-nodes
- '((gnus-group-mode "(gnus)Newsgroup Commands")
- (gnus-summary-mode "(gnus)Summary Commands")
- (gnus-article-mode "(gnus)Article Commands")
- (gnus-kill-file-mode "(gnus)Kill File")
- (gnus-browse-killed-mode "(gnus)Maintaining Subscriptions"))
- "Assoc list of major modes and related Info nodes.")
-
-;; Alist syntax is different from that of 3.14.3.
-(defvar gnus-access-methods
- '((nntp
- (gnus-retrieve-headers nntp-retrieve-headers)
- (gnus-open-server nntp-open-server)
- (gnus-close-server nntp-close-server)
- (gnus-server-opened nntp-server-opened)
- (gnus-status-message nntp-status-message)
- (gnus-request-article nntp-request-article)
- (gnus-request-group nntp-request-group)
- (gnus-request-list nntp-request-list)
- (gnus-request-list-newsgroups nntp-request-list-newsgroups)
- (gnus-request-list-distributions nntp-request-list-distributions)
- (gnus-request-post nntp-request-post))
- (nnspool
- (gnus-retrieve-headers nnspool-retrieve-headers)
- (gnus-open-server nnspool-open-server)
- (gnus-close-server nnspool-close-server)
- (gnus-server-opened nnspool-server-opened)
- (gnus-status-message nnspool-status-message)
- (gnus-request-article nnspool-request-article)
- (gnus-request-group nnspool-request-group)
- (gnus-request-list nnspool-request-list)
- (gnus-request-list-newsgroups nnspool-request-list-newsgroups)
- (gnus-request-list-distributions nnspool-request-list-distributions)
- (gnus-request-post nnspool-request-post))
- (mhspool
- (gnus-retrieve-headers mhspool-retrieve-headers)
- (gnus-open-server mhspool-open-server)
- (gnus-close-server mhspool-close-server)
- (gnus-server-opened mhspool-server-opened)
- (gnus-status-message mhspool-status-message)
- (gnus-request-article mhspool-request-article)
- (gnus-request-group mhspool-request-group)
- (gnus-request-list mhspool-request-list)
- (gnus-request-list-newsgroups mhspool-request-list-newsgroups)
- (gnus-request-list-distributions mhspool-request-list-distributions)
- (gnus-request-post mhspool-request-post)))
- "Access method for NNTP, nnspool, and mhspool.")
-
-(defvar gnus-group-buffer "*Newsgroup*")
-(defvar gnus-summary-buffer "*Summary*")
-(defvar gnus-article-buffer "*Article*")
-(defvar gnus-digest-buffer "GNUS Digest")
-(defvar gnus-digest-summary-buffer "GNUS Digest-summary")
-
-(defvar gnus-buffer-list
- (list gnus-group-buffer gnus-summary-buffer gnus-article-buffer
- gnus-digest-buffer gnus-digest-summary-buffer)
- "GNUS buffer names which should be killed when exiting.")
-
-(defvar gnus-variable-list
- '(gnus-newsrc-options
- gnus-newsrc-options-n-yes gnus-newsrc-options-n-no
- gnus-newsrc-assoc gnus-killed-assoc gnus-marked-assoc)
- "GNUS variables saved in the quick startup file.")
-
-(defvar gnus-overload-functions
- '((news-inews gnus-inews-news "rnewspost")
- (caesar-region gnus-caesar-region "rnews"))
- "Functions overloaded by gnus.
-It is a list of `(original overload &optional file)'.")
-
-(defvar gnus-distribution-list nil)
-
-(defvar gnus-newsrc-options nil
- "Options line in the .newsrc file.")
-
-(defvar gnus-newsrc-options-n-yes nil
- "Regexp representing subscribed newsgroups.")
-
-(defvar gnus-newsrc-options-n-no nil
- "Regexp representing unsubscribed newsgroups.")
-
-(defvar gnus-newsrc-assoc nil
- "Assoc list of read articles.
-gnus-newsrc-hashtb should be kept so that both hold the same information.")
-
-(defvar gnus-newsrc-hashtb nil
- "Hashtable of gnus-newsrc-assoc.")
-
-(defvar gnus-killed-assoc nil
- "Assoc list of newsgroups removed from gnus-newsrc-assoc.
-gnus-killed-hashtb should be kept so that both hold the same information.")
-
-(defvar gnus-killed-hashtb nil
- "Hashtable of gnus-killed-assoc.")
-
-(defvar gnus-marked-assoc nil
- "Assoc list of articles marked as unread.
-gnus-marked-hashtb should be kept so that both hold the same information.")
-
-(defvar gnus-marked-hashtb nil
- "Hashtable of gnus-marked-assoc.")
-
-(defvar gnus-unread-hashtb nil
- "Hashtable of unread articles.")
-
-(defvar gnus-active-hashtb nil
- "Hashtable of active articles.")
-
-(defvar gnus-octive-hashtb nil
- "Hashtable of OLD active articles.")
-
-(defvar gnus-current-startup-file nil
- "Startup file for the current host.")
-
-(defvar gnus-last-search-regexp nil
- "Default regexp for article search command.")
-
-(defvar gnus-last-shell-command nil
- "Default shell command on article.")
-
-(defvar gnus-have-all-newsgroups nil)
-
-(defvar gnus-newsgroup-name nil)
-(defvar gnus-newsgroup-begin nil)
-(defvar gnus-newsgroup-end nil)
-(defvar gnus-newsgroup-last-rmail nil)
-(defvar gnus-newsgroup-last-mail nil)
-(defvar gnus-newsgroup-last-folder nil)
-(defvar gnus-newsgroup-last-file nil)
-
-(defvar gnus-newsgroup-unreads nil
- "List of unread articles in the current newsgroup.")
-
-(defvar gnus-newsgroup-unselected nil
- "List of unselected unread articles in the current newsgroup.")
-
-(defvar gnus-newsgroup-marked nil
- "List of marked articles in the current newsgroup (a subset of unread art).")
-
-(defvar gnus-newsgroup-headers nil
- "List of article headers in the current newsgroup.
-If the variable is modified (added or deleted), the function
-gnus-clear-hashtables-for-newsgroup-headers must be called to clear
-the hash tables.")
-(defvar gnus-newsgroup-headers-hashtb-by-id nil)
-(defvar gnus-newsgroup-headers-hashtb-by-number nil)
-
-(defvar gnus-current-article nil)
-(defvar gnus-current-headers nil)
-(defvar gnus-current-history nil)
-(defvar gnus-have-all-headers nil "Must be either T or NIL.")
-(defvar gnus-last-article nil)
-(defvar gnus-current-kill-article nil)
-
-;; Save window configuration.
-(defvar gnus-winconf-kill-file nil)
-
-(defvar gnus-group-mode-map nil)
-(defvar gnus-summary-mode-map nil)
-(defvar gnus-article-mode-map nil)
-(defvar gnus-kill-file-mode-map nil)
-
-(defvar rmail-last-file (expand-file-name "~/XMBOX"))
-(defvar rmail-last-rmail-file (expand-file-name "~/XNEWS"))
-
-;; Define GNUS Subsystems.
-(autoload 'gnus-group-post-news "gnuspost"
- "Post an article." t)
-(autoload 'gnus-summary-post-news "gnuspost"
- "Post an article." t)
-(autoload 'gnus-summary-followup "gnuspost"
- "Post a reply article." t)
-(autoload 'gnus-summary-followup-with-original "gnuspost"
- "Post a reply article with original article." t)
-(autoload 'gnus-summary-cancel-article "gnuspost"
- "Cancel an article you posted." t)
-
-(autoload 'gnus-summary-reply "gnusmail"
- "Reply mail to news author." t)
-(autoload 'gnus-summary-reply-with-original "gnusmail"
- "Reply mail to news author with original article." t)
-(autoload 'gnus-summary-mail-forward "gnusmail"
- "Forward the current message to another user." t)
-(autoload 'gnus-summary-mail-other-window "gnusmail"
- "Compose mail in other window." t)
-
-(autoload 'gnus-group-kill-group "gnusmisc"
- "Kill newsgroup on current line." t)
-(autoload 'gnus-group-yank-group "gnusmisc"
- "Yank the last killed newsgroup on current line." t)
-(autoload 'gnus-group-kill-region "gnusmisc"
- "Kill newsgroups in current region." t)
-(autoload 'gnus-group-transpose-groups "gnusmisc"
- "Exchange current newsgroup and previous newsgroup." t)
-(autoload 'gnus-list-killed-groups "gnusmisc"
- "List the killed newsgroups." t)
-(autoload 'gnus-gmt-to-local "gnusmisc"
- "Rewrite Date field in GMT to local in current buffer.")
-
-(autoload 'metamail-buffer "metamail"
- "Process current buffer through 'metamail'." t)
-
-(autoload 'timezone-make-sortable-date "timezone")
-(autoload 'timezone-parse-date "timezone")
-
-(autoload 'rmail-output "rmailout"
- "Append this message to Unix mail file named FILE-NAME." t)
-(autoload 'mail-position-on-field "sendmail")
-(autoload 'mh-find-path "mh-e")
-(autoload 'mh-prompt-for-folder "mh-e")
-
-(put 'gnus-group-mode 'mode-class 'special)
-(put 'gnus-summary-mode 'mode-class 'special)
-(put 'gnus-article-mode 'mode-class 'special)
-
-\f
-;;(put 'gnus-eval-in-buffer-window 'lisp-indent-hook 1)
-
-(defmacro gnus-eval-in-buffer-window (buffer &rest forms)
- "Pop to BUFFER, evaluate FORMS, and then returns to original window."
- (` (let ((GNUSStartBufferWindow (selected-window)))
- (unwind-protect
- (progn
- (pop-to-buffer (, buffer))
- (,@ forms))
- (select-window GNUSStartBufferWindow)))))
-
-(defmacro gnus-make-hashtable (&optional hashsize)
- "Make a hash table (default and minimum size is 200).
-Optional argument HASHSIZE specifies the table size."
- (` (make-vector (, (if hashsize (` (max (, hashsize) 200)) 200)) 0)))
-
-(defmacro gnus-gethash (string hashtable)
- "Get hash value of STRING in HASHTABLE."
- ;;(` (symbol-value (abbrev-symbol (, string) (, hashtable))))
- ;;(` (abbrev-expansion (, string) (, hashtable)))
- (` (symbol-value (intern-soft (, string) (, hashtable)))))
-
-(defmacro gnus-sethash (string value hashtable)
- "Set hash value. Arguments are STRING, VALUE, and HASHTABLE."
- ;; We cannot use define-abbrev since it only accepts string as value.
- (` (set (intern (, string) (, hashtable)) (, value))))
-
-;; Note: Macros defined here are also defined in nntp.el. I don't like
-;; to put them here, but many users got troubled with the old
-;; definitions in nntp.elc. These codes are NNTP 3.10 version.
-
-(defmacro nntp-header-number (header)
- "Return article number in HEADER."
- (` (aref (, header) 0)))
-
-(defmacro nntp-set-header-number (header number)
- "Set article number of HEADER to NUMBER."
- (` (aset (, header) 0 (, number))))
-
-(defmacro nntp-header-subject (header)
- "Return subject string in HEADER."
- (` (aref (, header) 1)))
-
-(defmacro nntp-set-header-subject (header subject)
- "Set article subject of HEADER to SUBJECT."
- (` (aset (, header) 1 (, subject))))
-
-(defmacro nntp-header-from (header)
- "Return author string in HEADER."
- (` (aref (, header) 2)))
-
-(defmacro nntp-set-header-from (header from)
- "Set article author of HEADER to FROM."
- (` (aset (, header) 2 (, from))))
-
-(defmacro nntp-header-xref (header)
- "Return xref string in HEADER."
- (` (aref (, header) 3)))
-
-(defmacro nntp-set-header-xref (header xref)
- "Set article xref of HEADER to xref."
- (` (aset (, header) 3 (, xref))))
-
-(defmacro nntp-header-lines (header)
- "Return lines in HEADER."
- (` (aref (, header) 4)))
-
-(defmacro nntp-set-header-lines (header lines)
- "Set article lines of HEADER to LINES."
- (` (aset (, header) 4 (, lines))))
-
-(defmacro nntp-header-date (header)
- "Return date in HEADER."
- (` (aref (, header) 5)))
-
-(defmacro nntp-set-header-date (header date)
- "Set article date of HEADER to DATE."
- (` (aset (, header) 5 (, date))))
-
-(defmacro nntp-header-id (header)
- "Return Id in HEADER."
- (` (aref (, header) 6)))
-
-(defmacro nntp-set-header-id (header id)
- "Set article Id of HEADER to ID."
- (` (aset (, header) 6 (, id))))
-
-(defmacro nntp-header-references (header)
- "Return references in HEADER."
- (` (aref (, header) 7)))
-
-(defmacro nntp-set-header-references (header ref)
- "Set article references of HEADER to REF."
- (` (aset (, header) 7 (, ref))))
-
-\f
-;;;
-;;; GNUS Group Mode
-;;;
-
-(if gnus-group-mode-map
- nil
- (setq gnus-group-mode-map (make-keymap))
- (suppress-keymap gnus-group-mode-map)
- (define-key gnus-group-mode-map " " 'gnus-group-read-group)
- (define-key gnus-group-mode-map "=" 'gnus-group-select-group)
- (define-key gnus-group-mode-map "j" 'gnus-group-jump-to-group)
- (define-key gnus-group-mode-map "n" 'gnus-group-next-unread-group)
- (define-key gnus-group-mode-map "p" 'gnus-group-prev-unread-group)
- (define-key gnus-group-mode-map "\177" 'gnus-group-prev-unread-group)
- (define-key gnus-group-mode-map "N" 'gnus-group-next-group)
- (define-key gnus-group-mode-map "P" 'gnus-group-prev-group)
- (define-key gnus-group-mode-map "\C-n" 'gnus-group-next-group)
- (define-key gnus-group-mode-map "\C-p" 'gnus-group-prev-group)
- (define-key gnus-group-mode-map "\r" 'next-line)
- ;;(define-key gnus-group-mode-map "/" 'isearch-forward)
- (define-key gnus-group-mode-map "<" 'beginning-of-buffer)
- (define-key gnus-group-mode-map ">" 'end-of-buffer)
- (define-key gnus-group-mode-map "u" 'gnus-group-unsubscribe-current-group)
- (define-key gnus-group-mode-map "U" 'gnus-group-unsubscribe-group)
- (define-key gnus-group-mode-map "c" 'gnus-group-catchup)
- (define-key gnus-group-mode-map "C" 'gnus-group-catchup-all)
- (define-key gnus-group-mode-map "l" 'gnus-group-list-groups)
- (define-key gnus-group-mode-map "L" 'gnus-group-list-all-groups)
- (define-key gnus-group-mode-map "g" 'gnus-group-get-new-news)
- (define-key gnus-group-mode-map "R" 'gnus-group-restart)
- (define-key gnus-group-mode-map "b" 'gnus-group-check-bogus-groups)
- (define-key gnus-group-mode-map "r" 'gnus-group-restrict-groups)
- (define-key gnus-group-mode-map "a" 'gnus-group-post-news)
- (define-key gnus-group-mode-map "\ek" 'gnus-group-edit-local-kill)
- (define-key gnus-group-mode-map "\eK" 'gnus-group-edit-global-kill)
- (define-key gnus-group-mode-map "\C-k" 'gnus-group-kill-group)
- (define-key gnus-group-mode-map "\C-y" 'gnus-group-yank-group)
- (define-key gnus-group-mode-map "\C-w" 'gnus-group-kill-region)
- (define-key gnus-group-mode-map "\C-x\C-t" 'gnus-group-transpose-groups)
- (define-key gnus-group-mode-map "\C-c\C-l" 'gnus-list-killed-groups)
- (define-key gnus-group-mode-map "V" 'gnus-version)
- ;;(define-key gnus-group-mode-map "x" 'gnus-group-force-update)
- (define-key gnus-group-mode-map "s" 'gnus-group-force-update)
- (define-key gnus-group-mode-map "z" 'gnus-group-suspend)
- (define-key gnus-group-mode-map "q" 'gnus-group-exit)
- (define-key gnus-group-mode-map "Q" 'gnus-group-quit)
- (define-key gnus-group-mode-map "?" 'gnus-group-describe-briefly)
- (define-key gnus-group-mode-map "\C-c\C-i" 'gnus-info-find-node))
-
-(defun gnus-group-mode ()
- "Major mode for reading network news.
-All normal editing commands are turned off.
-Instead, these commands are available:
-
-SPC Read articles in this newsgroup.
-= Select this newsgroup.
-j Move to the specified newsgroup.
-n Move to the next unread newsgroup.
-p Move to the previous unread newsgroup.
-C-n Move to the next newsgroup.
-C-p Move to the previous newsgroup.
-< Move point to the beginning of this buffer.
-> Move point to the end of this buffer.
-u Unsubscribe from (subscribe to) this newsgroup.
-U Unsubscribe from (subscribe to) the specified newsgroup.
-c Mark all articles as read, preserving marked articles.
-C Mark all articles in this newsgroup as read.
-l Revert this buffer.
-L List all newsgroups.
-g Get new news.
-R Force to read the raw .newsrc file and get new news.
-b Check bogus newsgroups.
-r Restrict visible newsgroups to the current region.
-a Post a new article.
-ESC k Edit a local KILL file applied to this newsgroup.
-ESC K Edit a global KILL file applied to all newsgroups.
-C-k Kill this newsgroup.
-C-y Yank killed newsgroup here.
-C-w Kill newsgroups in current region (excluding current point).
-C-x C-t Exchange this newsgroup and previous newsgroup.
-C-c C-l list killed newsgroups.
-s Save .newsrc file.
-z Suspend reading news.
-q Quit reading news.
-Q Quit reading news without saving .newsrc file.
-V Show the version number of this GNUS.
-? Describe Group Mode commands briefly.
-C-h m Describe Group Mode.
-C-c C-i Read Info about Group Mode.
-
- The name of the host running NNTP server is asked for if no default
-host is specified. It is also possible to choose another NNTP server
-even when the default server is defined by giving a prefix argument to
-the command `\\[gnus]'.
-
- If an NNTP server is preceded by a colon such as `:Mail', the user's
-private directory `~/Mail' is used as a news spool. This makes it
-possible to read mail stored in MH folders or articles saved by GNUS.
-File names of mail or articles must consist of only numeric
-characters. Otherwise, they are ignored.
-
- If there is a file named `~/.newsrc-SERVER', it is used as the
-startup file instead of standard one when talking to SERVER. It is
-possible to talk to many hosts by using different startup files for
-each.
-
- Option `-n' of the options line in the startup file is recognized
-properly the same as the Bnews system. For example, if the options
-line is `options -n !talk talk.rumors', newsgroups under the `talk'
-hierarchy except for `talk.rumors' are ignored while checking new
-newsgroups.
-
- If there is a file named `~/.signature-DISTRIBUTION', it is used as
-signature file instead of standard one when posting a news in
-DISTRIBUTION.
-
- If an Info file generated from `gnus.texinfo' is installed, you can
-read an appropriate Info node of the Info file according to the
-current major mode of GNUS by \\[gnus-info-find-node].
-
- The variable `gnus-version', `nntp-version', `nnspool-version', and
-`mhspool-version' have the version numbers of this version of gnus.el,
-nntp.el, nnspool.el, and mhspoo.el, respectively.
-
-User customizable variables:
- gnus-nntp-server
- Specifies the name of the host running the NNTP server. If its
- value is a string such as `:DIRECTORY', the user's private
- DIRECTORY is used as a news spool. The variable is initialized
- from the NNTPSERVER environment variable.
-
- gnus-nntp-service
- Specifies a NNTP service name. It is usually \"nntp\" or 119.
- Nil forces GNUS to use a local news spool if the variable
- `gnus-nntp-server' is set to the local host name.
-
- gnus-startup-file
- Specifies a startup file (.newsrc). If there is a file named
- `.newsrc-SERVER', it's used instead when talking to SERVER. I
- recommend you to use the server specific file, if you'd like to
- talk to many servers. Especially if you'd like to read your
- private directory, the name of the file must be
- `.newsrc-:DIRECTORY'.
-
- gnus-signature-file
- Specifies a signature file (.signature). If there is a file named
- `.signature-DISTRIBUTION', it's used instead when posting an
- article in DISTRIBUTION. Set the variable to nil to prevent
- appending the file automatically. If you use an NNTP inews which
- comes with the NNTP package, you may have to set the variable to
- nil.
-
- gnus-use-cross-reference
- Specifies what to do with cross references (Xref: field). If it
- is nil, cross references are ignored. If it is t, articles in
- subscribed newsgroups are only marked as read. Otherwise, if it
- is not nil nor t, articles in all newsgroups are marked as read.
-
- gnus-use-followup-to
- Specifies what to do with followup-to: field. If it is nil, its
- value is ignored. If it is non-nil, its value is used as followup
- newsgroups. Especially, if it is t and field value is `poster',
- your confirmation is required.
-
- gnus-author-copy
- Specifies a file name to save a copy of article you posted using
- FCC: field. If the first character of the value is `|', the
- contents of the article is piped out to a program specified by the
- rest of the value. The variable is initialized from the
- AUTHORCOPY environment variable.
-
- gnus-author-copy-saver
- Specifies a function to save an author copy. The function is
- called with a file name. The default function `rmail-output'
- saves in Unix mail format.
-
- gnus-kill-file-name
- Use specified file name as a KILL file (default to `KILL').
-
- gnus-novice-user
- Non-nil means that you are a novice to USENET. If non-nil,
- verbose messages may be displayed or your confirmations may be
- required.
-
- gnus-interactive-post
- Non-nil means that newsgroup, subject and distribution are asked
- for interactively when posting a new article.
-
- gnus-use-full-window
- Non-nil means to take up the entire screen of Emacs.
-
- gnus-window-configuration
- Specifies the configuration of Group, Summary, and Article
- windows. It is a list of (ACTION (G S A)), where G, S, and A are
- the relative height of Group, Summary, and Article windows,
- respectively. ACTION is `summary', `newsgroups', or `article'.
-
- gnus-subscribe-newsgroup-method
- Specifies a function called with a newsgroup name when new
- newsgroup is found. The default definition adds new newsgroup at
- the beginning of other newsgroups.
-
- And more and more. Please refer to texinfo documentation.
-
-Various hooks for customization:
- gnus-group-mode-hook
- Entry to this mode calls the value with no arguments, if that
- value is non-nil. This hook is called before GNUS is connected to
- the NNTP server. So, you can change or define the NNTP server in
- this hook.
-
- gnus-startup-hook
- Called with no arguments after the NNTP server is selected. It is
- possible to change the behavior of GNUS or initialize the
- variables according to the selected NNTP server.
-
- gnus-group-prepare-hook
- Called with no arguments after a newsgroup list is created in the
- Newsgroup buffer, if that value is non-nil.
-
- gnus-save-newsrc-hook
- Called with no arguments when saving newsrc file if that value is
- non-nil.
-
- gnus-prepare-article-hook
- Called with no arguments after preparing message body, but before
- preparing header fields which is automatically generated if that
- value is non-nil. The default hook (gnus-inews-insert-signature)
- inserts a signature file.
-
- gnus-inews-article-hook
- Called with no arguments when posting an article if that value is
- non-nil. This hook is called just before posting an article. The
- default hook does FCC (save an article to the specified file).
-
- gnus-suspend-gnus-hook
- Called with no arguments when suspending (not exiting) GNUS, if
- that value is non-nil.
-
- gnus-exit-gnus-hook
- Called with no arguments when exiting (not suspending) GNUS, if
- that value is non-nil."
- (interactive)
- (kill-all-local-variables)
- ;; Gee. Why don't you upgrade?
- (cond ((boundp 'mode-line-modified)
- (setq mode-line-modified "--- "))
- ((listp (default-value 'mode-line-format))
- (setq mode-line-format
- (cons "--- " (cdr (default-value 'mode-line-format)))))
- (t
- (setq mode-line-format
- "--- GNUS: List of Newsgroups %[(%m)%]----%3p-%-")))
- (setq major-mode 'gnus-group-mode)
- (setq mode-name "Newsgroup")
- (setq mode-line-buffer-identification "GNUS: List of Newsgroups")
- (setq mode-line-process nil)
- (use-local-map gnus-group-mode-map)
- (buffer-flush-undo (current-buffer))
- (setq buffer-read-only t) ;Disable modification
- (run-hooks 'gnus-group-mode-hook))
-
-;;;###autoload
-(defun gnus (&optional confirm)
- "Read network news.
-If optional argument CONFIRM is non-nil, ask NNTP server."
- (interactive "P")
- (unwind-protect
- (progn
- (switch-to-buffer (get-buffer-create gnus-group-buffer))
- (gnus-group-mode)
- (gnus-start-news-server confirm))
- (if (not (gnus-server-opened))
- (gnus-group-quit)
- ;; NNTP server is successfully open.
- (setq mode-line-process (format " {%s}" gnus-nntp-server))
- (let ((buffer-read-only nil))
- (erase-buffer)
- (gnus-group-startup-message)
- (sit-for 0))
- (run-hooks 'gnus-startup-hook)
- (gnus-setup-news)
- (if gnus-novice-user
- (gnus-group-describe-briefly)) ;Show brief help message.
- (gnus-group-list-groups nil)
- )))
-
-(defun gnus-group-startup-message ()
- "Insert startup message in current buffer."
- ;; Insert the message.
- (insert "
- GNUS Version 3.15
-
- NNTP-based News Reader for GNU Emacs
-
-
-If you have any trouble with this software, please let me
-know. I will fix your problems in the next release.
-
-Comments, suggestions, and bug fixes are welcome.
-
-Masanobu UMEDA
-umerin@mse.kyutech.ac.jp")
- ;; And then hack it.
- ;; 57 is the longest line.
- (indent-rigidly (point-min) (point-max) (/ (max (- (window-width) 57) 0) 2))
- (goto-char (point-min))
- ;; +4 is fuzzy factor.
- (insert-char ?\n (/ (max (- (window-height) 18) 0) 2)))
-
-(defun gnus-group-list-groups (show-all)
- "List newsgroups in the Newsgroup buffer.
-If argument SHOW-ALL is non-nil, unsubscribed groups are also listed."
- (interactive "P")
- (let ((case-fold-search nil)
- (last-group ;Current newsgroup.
- (gnus-group-group-name))
- (next-group ;Next possible newsgroup.
- (progn
- (gnus-group-search-forward nil nil)
- (gnus-group-group-name)))
- (prev-group ;Previous possible newsgroup.
- (progn
- (gnus-group-search-forward t nil)
- (gnus-group-group-name))))
- (set-buffer gnus-group-buffer) ;May call from out of Group buffer
- (gnus-group-prepare show-all)
- (if (zerop (buffer-size))
- (message "No news is good news")
- ;; Go to last newsgroup if possible. If cannot, try next and
- ;; previous. If all fail, go to first unread newsgroup.
- (goto-char (point-min))
- (or (and last-group
- (re-search-forward (gnus-group-make-regexp last-group) nil t))
- (and next-group
- (re-search-forward (gnus-group-make-regexp next-group) nil t))
- (and prev-group
- (re-search-forward (gnus-group-make-regexp prev-group) nil t))
- (gnus-group-search-forward nil nil t))
- ;; Adjust cursor point.
- (beginning-of-line)
- (search-forward ":" nil t)
- )))
-
-(defun gnus-group-prepare (&optional all)
- "Prepare list of newsgroups in current buffer.
-If optional argument ALL is non-nil, unsubscribed groups are also listed."
- (let ((buffer-read-only nil)
- (newsrc gnus-newsrc-assoc)
- (group-info nil)
- (group-name nil)
- (unread-count 0)
- ;; This specifies the format of Group buffer.
- (cntl "%s%s%5d: %s\n"))
- (erase-buffer)
- ;; List newsgroups.
- (while newsrc
- (setq group-info (car newsrc))
- (setq group-name (car group-info))
- (setq unread-count (nth 1 (gnus-gethash group-name gnus-unread-hashtb)))
- (if (or all
- (and (nth 1 group-info) ;Subscribed.
- (> unread-count 0))) ;There are unread articles.
- ;; Yes, I can use gnus-group-prepare-line, but this is faster.
- (insert
- (format cntl
- ;; Subscribed or not.
- (if (nth 1 group-info) " " "U")
- ;; Has new news?
- (if (and (> unread-count 0)
- (>= 0
- (- unread-count
- (length
- (cdr (gnus-gethash group-name
- gnus-marked-hashtb))))))
- "*" " ")
- ;; Number of unread articles.
- unread-count
- ;; Newsgroup name.
- group-name))
- )
- (setq newsrc (cdr newsrc))
- )
- (setq gnus-have-all-newsgroups all)
- (goto-char (point-min))
- (run-hooks 'gnus-group-prepare-hook)
- ))
-
-(defun gnus-group-prepare-line (info)
- "Return a string for the Newsgroup buffer from INFO.
-INFO is an element of gnus-newsrc-assoc or gnus-killed-assoc."
- (let* ((group-name (car info))
- (unread-count
- (or (nth 1 (gnus-gethash group-name gnus-unread-hashtb))
- ;; Not in hash table, so compute it now.
- (gnus-number-of-articles
- (gnus-difference-of-range
- (nth 2 (gnus-gethash group-name gnus-active-hashtb))
- (nthcdr 2 info)))))
- ;; This specifies the format of Group buffer.
- (cntl "%s%s%5d: %s\n"))
- (format cntl
- ;; Subscribed or not.
- (if (nth 1 info) " " "U")
- ;; Has new news?
- (if (and (> unread-count 0)
- (>= 0
- (- unread-count
- (length
- (cdr (gnus-gethash group-name
- gnus-marked-hashtb))))))
- "*" " ")
- ;; Number of unread articles.
- unread-count
- ;; Newsgroup name.
- group-name
- )))
-
-(defun gnus-group-update-group (group &optional visible-only)
- "Update newsgroup info of GROUP.
-If optional argument VISIBLE-ONLY is non-nil, non displayed group is ignored."
- (let ((buffer-read-only nil)
- (case-fold-search nil) ;appleIIgs vs. appleiigs
- (regexp (gnus-group-make-regexp group))
- (visible nil))
- ;; Buffer may be narrowed.
- (save-restriction
- (widen)
- ;; Search a line to modify. If the buffer is large, the search
- ;; takes long time. In most cases, current point is on the line
- ;; we are looking for. So, first of all, check current line.
- ;; And then if current point is in the first half, search from
- ;; the beginning. Otherwise, search from the end.
- (if (cond ((progn
- (beginning-of-line)
- (looking-at regexp)))
- ((and (> (/ (buffer-size) 2) (point)) ;In the first half.
- (progn
- (goto-char (point-min))
- (re-search-forward regexp nil t))))
- ((progn
- (goto-char (point-max))
- (re-search-backward regexp nil t))))
- ;; GROUP is listed in current buffer. So, delete old line.
- (progn
- (setq visible t)
- (beginning-of-line)
- (delete-region (point) (progn (forward-line 1) (point)))
- )
- ;; No such line in the buffer, so insert it at the top.
- (goto-char (point-min)))
- (if (or visible (not visible-only))
- (progn
- (insert (gnus-group-prepare-line
- (gnus-gethash group gnus-newsrc-hashtb)))
- (forward-line -1) ;Move point on that line.
- ))
- )))
-
-(defun gnus-group-group-name ()
- "Get newsgroup name around point."
- (save-excursion
- (beginning-of-line)
- (if (looking-at "^.+:[ \t]+\\([^ \t\n]+\\)\\([ \t].*\\|$\\)")
- (buffer-substring (match-beginning 1) (match-end 1))
- )))
-
-(defun gnus-group-make-regexp (newsgroup)
- "Return regexp that matches for a line of NEWSGROUP."
- (concat "^.+: " (regexp-quote newsgroup) "\\([ \t].*\\|$\\)"))
-
-(defun gnus-group-search-forward (backward norest &optional heretoo)
- "Search for the next (or previous) newsgroup.
-If 1st argument BACKWARD is non-nil, search backward instead.
-If 2nd argument NOREST is non-nil, don't care about newsgroup property.
-If optional argument HERETOO is non-nil, current line is searched for, too."
- (let ((case-fold-search nil)
- (func
- (if backward
- (function re-search-backward) (function re-search-forward)))
- (regexp
- (format "^%s[ \t]*\\(%s\\):"
- (if norest ".." " [ \t]")
- (if norest "[0-9]+" "[1-9][0-9]*")))
- (found nil))
- (if backward
- (if heretoo
- (end-of-line)
- (beginning-of-line))
- (if heretoo
- (beginning-of-line)
- (end-of-line)))
- (setq found (funcall func regexp nil t))
- ;; Adjust cursor point.
- (beginning-of-line)
- (search-forward ":" nil t)
- ;; Return T if found.
- found
- ))
-
-;; GNUS Group mode command
-
-(defun gnus-group-read-group (all &optional no-article)
- "Read news in this newsgroup.
-If argument ALL is non-nil, already read articles become readable.
-If optional argument NO-ARTICLE is non-nil, no article body is displayed."
- (interactive "P")
- (let ((group (gnus-group-group-name))) ;Newsgroup name to read.
- (if group
- (gnus-summary-read-group
- group
- (or all
- ;;(not (nth 1 (gnus-gethash group gnus-newsrc-hashtb))) ;Unsubscribed
- (zerop
- (nth 1 (gnus-gethash group gnus-unread-hashtb)))) ;No unread
- no-article
- ))
- ))
-
-(defun gnus-group-select-group (all)
- "Select this newsgroup.
-No article is selected automatically.
-If argument ALL is non-nil, already read articles become readable."
- (interactive "P")
- (gnus-group-read-group all t))
-
-(defun gnus-group-jump-to-group (group)
- "Jump to newsgroup GROUP."
- (interactive
- (list (completing-read "Newsgroup: " gnus-newsrc-assoc nil 'require-match)))
- (let ((case-fold-search nil))
- (goto-char (point-min))
- (or (re-search-forward (gnus-group-make-regexp group) nil t)
- (if (gnus-gethash group gnus-newsrc-hashtb)
- ;; Add GROUP entry, then seach again.
- (gnus-group-update-group group)))
- ;; Adjust cursor point.
- (beginning-of-line)
- (search-forward ":" nil t)
- ))
-
-(defun gnus-group-next-group (n)
- "Go to next N'th newsgroup."
- (interactive "p")
- (while (and (> n 1)
- (gnus-group-search-forward nil t))
- (setq n (1- n)))
- (or (gnus-group-search-forward nil t)
- (message "No more newsgroups")))
-
-(defun gnus-group-next-unread-group (n)
- "Go to next N'th unread newsgroup."
- (interactive "p")
- (while (and (> n 1)
- (gnus-group-search-forward nil nil))
- (setq n (1- n)))
- (or (gnus-group-search-forward nil nil)
- (message "No more unread newsgroups")))
-
-(defun gnus-group-prev-group (n)
- "Go to previous N'th newsgroup."
- (interactive "p")
- (while (and (> n 1)
- (gnus-group-search-forward t t))
- (setq n (1- n)))
- (or (gnus-group-search-forward t t)
- (message "No more newsgroups")))
-
-(defun gnus-group-prev-unread-group (n)
- "Go to previous N'th unread newsgroup."
- (interactive "p")
- (while (and (> n 1)
- (gnus-group-search-forward t nil))
- (setq n (1- n)))
- (or (gnus-group-search-forward t nil)
- (message "No more unread newsgroups")))
-
-(defun gnus-group-catchup (all)
- "Mark all articles not marked as unread in current newsgroup as read.
-If prefix argument ALL is non-nil, all articles are marked as read.
-Cross references (Xref: field) of articles are ignored."
- (interactive "P")
- (let* ((group (gnus-group-group-name))
- (marked (if (not all)
- (cdr (gnus-gethash group gnus-marked-hashtb)))))
- (and group
- (or (not gnus-interactive-catchup) ;Without confirmation?
- (y-or-n-p
- (if all
- "Do you really want to mark everything as read? "
- "Delete all articles not marked as read? ")))
- (progn
- (message "") ;Clear "Yes or No" question.
- ;; Any marked articles will be preserved.
- (gnus-update-unread-articles group marked marked)
- (gnus-group-update-group group)
- (gnus-group-next-group 1)))
- ))
-
-(defun gnus-group-catchup-all ()
- "Mark all articles in current newsgroup as read.
-Cross references (Xref: field) of articles are ignored."
- (interactive)
- (gnus-group-catchup t))
-
-(defun gnus-group-unsubscribe-current-group ()
- "Toggle subscribe from/to unsubscribe current group."
- (interactive)
- (gnus-group-unsubscribe-group (gnus-group-group-name))
- (gnus-group-next-group 1))
-
-(defun gnus-group-unsubscribe-group (group)
- "Toggle subscribe from/to unsubscribe GROUP.
-New newsgroup is added to .newsrc automatically."
- (interactive
- (list (completing-read "Newsgroup: "
- gnus-active-hashtb nil 'require-match)))
- (let ((newsrc (gnus-gethash group gnus-newsrc-hashtb)))
- (cond ((not (null newsrc))
- ;; Toggle subscription flag.
- (setcar (nthcdr 1 newsrc) (not (nth 1 newsrc)))
- (gnus-update-newsrc-buffer group)
- (gnus-group-update-group group)
- ;; Adjust cursor point.
- (beginning-of-line)
- (search-forward ":" nil t))
- ((and (stringp group)
- (gnus-gethash group gnus-active-hashtb))
- ;; Add new newsgroup.
- (gnus-add-newsgroup group)
- (gnus-group-update-group group)
- ;; Adjust cursor point.
- (beginning-of-line)
- (search-forward ":" nil t))
- (t (error "No such newsgroup: %s" group)))
- ))
-
-(defun gnus-group-list-all-groups ()
- "List all of newsgroups in the Newsgroup buffer."
- (interactive)
- (gnus-group-list-groups t))
-
-(defun gnus-group-get-new-news ()
- "Get newly arrived articles. In fact, read the active file again."
- (interactive)
- (gnus-setup-news)
- (gnus-group-list-groups gnus-have-all-newsgroups))
-
-(defun gnus-group-restart ()
- "Force GNUS to read the raw startup file."
- (interactive)
- (gnus-save-newsrc-file)
- (gnus-setup-news t) ;Force to read the raw startup file.
- (gnus-group-list-groups gnus-have-all-newsgroups))
-
-(defun gnus-group-check-bogus-groups ()
- "Check bogus newsgroups."
- (interactive)
- (gnus-check-bogus-newsgroups t) ;Require confirmation.
- (gnus-group-list-groups gnus-have-all-newsgroups))
-
-(defun gnus-group-restrict-groups (start end)
- "Restrict visible newsgroups to the current region (START and END).
-Type \\[widen] to remove restriction."
- (interactive "r")
- (save-excursion
- (narrow-to-region (progn
- (goto-char start)
- (beginning-of-line)
- (point))
- (progn
- (goto-char end)
- (forward-line 1)
- (point))))
- (message (substitute-command-keys "Type \\[widen] to remove restriction")))
-
-(defun gnus-group-edit-global-kill ()
- "Edit a global KILL file."
- (interactive)
- (setq gnus-current-kill-article nil) ;No articles selected.
- (gnus-kill-file-edit-file nil) ;Nil stands for global KILL file.
- (message
- (substitute-command-keys
- "Editing a global KILL file (Type \\[gnus-kill-file-exit] to exit)")))
-
-(defun gnus-group-edit-local-kill ()
- "Edit a local KILL file."
- (interactive)
- (setq gnus-current-kill-article nil) ;No articles selected.
- (gnus-kill-file-edit-file (gnus-group-group-name))
- (message
- (substitute-command-keys
- "Editing a local KILL file (Type \\[gnus-kill-file-exit] to exit)")))
-
-(defun gnus-group-force-update ()
- "Update .newsrc file."
- (interactive)
- (gnus-save-newsrc-file))
-
-(defun gnus-group-suspend ()
- "Suspend the current GNUS session.
-In fact, cleanup buffers except for Group Mode buffer.
-The hook gnus-suspend-gnus-hook is called before actually suspending."
- (interactive)
- (run-hooks 'gnus-suspend-gnus-hook)
- ;; Kill GNUS buffers except for Group Mode buffer.
- (let ((buffers gnus-buffer-list))
- (while buffers
- (and (not (eq (car buffers) gnus-group-buffer))
- (get-buffer (car buffers))
- (kill-buffer (car buffers)))
- (setq buffers (cdr buffers))
- ))
- (bury-buffer))
-
-(defun gnus-group-exit ()
- "Quit reading news after updating .newsrc.
-The hook gnus-exit-gnus-hook is called before actually quitting."
- (interactive)
- (if (or noninteractive ;For gnus-batch-kill
- (zerop (buffer-size)) ;No news is good news.
- (not (gnus-server-opened)) ;NNTP connection closed.
- (not gnus-interactive-exit) ;Without confirmation
- (y-or-n-p "Are you sure you want to quit reading news? "))
- (progn
- (message "") ;Erase "Yes or No" question.
- (run-hooks 'gnus-exit-gnus-hook)
- (gnus-save-newsrc-file)
- (gnus-clear-system)
- (gnus-close-server))
- ))
-
-(defun gnus-group-quit ()
- "Quit reading news without updating .newsrc.
-The hook gnus-exit-gnus-hook is called before actually quitting."
- (interactive)
- (if (or noninteractive ;For gnus-batch-kill
- (zerop (buffer-size))
- (not (gnus-server-opened))
- (yes-or-no-p
- (format "Quit reading news without saving %s? "
- (file-name-nondirectory gnus-current-startup-file))))
- (progn
- (message "") ;Erase "Yes or No" question.
- (run-hooks 'gnus-exit-gnus-hook)
- (gnus-clear-system)
- (gnus-close-server))
- ))
-
-(defun gnus-group-describe-briefly ()
- "Describe Group mode commands briefly."
- (interactive)
- (message
- (concat
- (substitute-command-keys "\\[gnus-group-read-group]:Select ")
- (substitute-command-keys "\\[gnus-group-next-unread-group]:Forward ")
- (substitute-command-keys "\\[gnus-group-prev-unread-group]:Backward ")
- (substitute-command-keys "\\[gnus-group-exit]:Exit ")
- (substitute-command-keys "\\[gnus-info-find-node]:Run Info ")
- (substitute-command-keys "\\[gnus-group-describe-briefly]:This help")
- )))
-
-\f
-;;;
-;;; GNUS Summary Mode
-;;;
-
-(if gnus-summary-mode-map
- nil
- (setq gnus-summary-mode-map (make-keymap))
- (suppress-keymap gnus-summary-mode-map)
- (define-key gnus-summary-mode-map " " 'gnus-summary-next-page)
- (define-key gnus-summary-mode-map "\177" 'gnus-summary-prev-page)
- (define-key gnus-summary-mode-map "\r" 'gnus-summary-scroll-up)
- (define-key gnus-summary-mode-map "n" 'gnus-summary-next-unread-article)
- (define-key gnus-summary-mode-map "p" 'gnus-summary-prev-unread-article)
- (define-key gnus-summary-mode-map "N" 'gnus-summary-next-article)
- (define-key gnus-summary-mode-map "P" 'gnus-summary-prev-article)
- (define-key gnus-summary-mode-map "\e\C-n" 'gnus-summary-next-same-subject)
- (define-key gnus-summary-mode-map "\e\C-p" 'gnus-summary-prev-same-subject)
- ;;(define-key gnus-summary-mode-map "\e\C-n" 'gnus-summary-next-unread-same-subject)
- ;;(define-key gnus-summary-mode-map "\e\C-p" 'gnus-summary-prev-unread-same-subject)
- (define-key gnus-summary-mode-map "\C-c\C-n" 'gnus-summary-next-digest)
- (define-key gnus-summary-mode-map "\C-c\C-p" 'gnus-summary-prev-digest)
- (define-key gnus-summary-mode-map "\C-n" 'gnus-summary-next-subject)
- (define-key gnus-summary-mode-map "\C-p" 'gnus-summary-prev-subject)
- (define-key gnus-summary-mode-map "\en" 'gnus-summary-next-unread-subject)
- (define-key gnus-summary-mode-map "\ep" 'gnus-summary-prev-unread-subject)
- ;;(define-key gnus-summary-mode-map "\C-cn" 'gnus-summary-next-group)
- ;;(define-key gnus-summary-mode-map "\C-cp" 'gnus-summary-prev-group)
- (define-key gnus-summary-mode-map "." 'gnus-summary-first-unread-article)
- ;;(define-key gnus-summary-mode-map "/" 'isearch-forward)
- (define-key gnus-summary-mode-map "s" 'gnus-summary-isearch-article)
- (define-key gnus-summary-mode-map "\es" 'gnus-summary-search-article-forward)
- ;;(define-key gnus-summary-mode-map "\eS" 'gnus-summary-search-article-backward)
- (define-key gnus-summary-mode-map "\er" 'gnus-summary-search-article-backward)
- (define-key gnus-summary-mode-map "<" 'gnus-summary-beginning-of-article)
- (define-key gnus-summary-mode-map ">" 'gnus-summary-end-of-article)
- (define-key gnus-summary-mode-map "j" 'gnus-summary-goto-subject)
- ;;(define-key gnus-summary-mode-map "J" 'gnus-summary-goto-article)
- (define-key gnus-summary-mode-map "l" 'gnus-summary-goto-last-article)
- (define-key gnus-summary-mode-map "^" 'gnus-summary-refer-parent-article)
- ;;(define-key gnus-summary-mode-map "\er" 'gnus-summary-refer-article)
- (define-key gnus-summary-mode-map "\e^" 'gnus-summary-refer-article)
- (define-key gnus-summary-mode-map "u" 'gnus-summary-mark-as-unread-forward)
- (define-key gnus-summary-mode-map "U" 'gnus-summary-mark-as-unread-backward)
- (define-key gnus-summary-mode-map "d" 'gnus-summary-mark-as-read-forward)
- (define-key gnus-summary-mode-map "D" 'gnus-summary-mark-as-read-backward)
- (define-key gnus-summary-mode-map "\eu" 'gnus-summary-clear-mark-forward)
- (define-key gnus-summary-mode-map "\eU" 'gnus-summary-clear-mark-backward)
- (define-key gnus-summary-mode-map "k" 'gnus-summary-kill-same-subject-and-select)
- (define-key gnus-summary-mode-map "\C-k" 'gnus-summary-kill-same-subject)
- (define-key gnus-summary-mode-map "\e\C-t" 'gnus-summary-toggle-threads)
- (define-key gnus-summary-mode-map "\e\C-s" 'gnus-summary-show-thread)
- (define-key gnus-summary-mode-map "\e\C-h" 'gnus-summary-hide-thread)
- (define-key gnus-summary-mode-map "\e\C-f" 'gnus-summary-next-thread)
- (define-key gnus-summary-mode-map "\e\C-b" 'gnus-summary-prev-thread)
- (define-key gnus-summary-mode-map "\e\C-u" 'gnus-summary-up-thread)
- (define-key gnus-summary-mode-map "\e\C-d" 'gnus-summary-down-thread)
- (define-key gnus-summary-mode-map "\e\C-k" 'gnus-summary-kill-thread)
- (define-key gnus-summary-mode-map "&" 'gnus-summary-execute-command)
- ;;(define-key gnus-summary-mode-map "c" 'gnus-summary-catchup)
- ;;(define-key gnus-summary-mode-map "c" 'gnus-summary-catchup-all)
- (define-key gnus-summary-mode-map "c" 'gnus-summary-catchup-and-exit)
- ;;(define-key gnus-summary-mode-map "c" 'gnus-summary-catchup-all-and-exit)
- (define-key gnus-summary-mode-map "\C-t" 'gnus-summary-toggle-truncation)
- (define-key gnus-summary-mode-map "x" 'gnus-summary-delete-marked-as-read)
- (define-key gnus-summary-mode-map "X" 'gnus-summary-delete-marked-with)
- (define-key gnus-summary-mode-map "\C-c\C-sn" 'gnus-summary-sort-by-number)
- (define-key gnus-summary-mode-map "\C-c\C-sa" 'gnus-summary-sort-by-author)
- (define-key gnus-summary-mode-map "\C-c\C-ss" 'gnus-summary-sort-by-subject)
- (define-key gnus-summary-mode-map "\C-c\C-sd" 'gnus-summary-sort-by-date)
- (define-key gnus-summary-mode-map "\C-c\C-s\C-n" 'gnus-summary-sort-by-number)
- (define-key gnus-summary-mode-map "\C-c\C-s\C-a" 'gnus-summary-sort-by-author)
- (define-key gnus-summary-mode-map "\C-c\C-s\C-s" 'gnus-summary-sort-by-subject)
- (define-key gnus-summary-mode-map "\C-c\C-s\C-d" 'gnus-summary-sort-by-date)
- (define-key gnus-summary-mode-map "=" 'gnus-summary-expand-window)
- ;;(define-key gnus-summary-mode-map "G" 'gnus-summary-reselect-current-group)
- (define-key gnus-summary-mode-map "\C-x\C-s" 'gnus-summary-reselect-current-group)
- (define-key gnus-summary-mode-map "w" 'gnus-summary-stop-page-breaking)
- (define-key gnus-summary-mode-map "\C-c\C-r" 'gnus-summary-caesar-message)
- (define-key gnus-summary-mode-map "g" 'gnus-summary-show-article)
- (define-key gnus-summary-mode-map "t" 'gnus-summary-toggle-header)
- ;;(define-key gnus-summary-mode-map "v" 'gnus-summary-show-all-headers)
- (define-key gnus-summary-mode-map "\et" 'gnus-summary-toggle-mime)
- (define-key gnus-summary-mode-map "\C-d" 'gnus-summary-rmail-digest)
- (define-key gnus-summary-mode-map "a" 'gnus-summary-post-news)
- (define-key gnus-summary-mode-map "f" 'gnus-summary-followup)
- (define-key gnus-summary-mode-map "F" 'gnus-summary-followup-with-original)
- (define-key gnus-summary-mode-map "C" 'gnus-summary-cancel-article)
- (define-key gnus-summary-mode-map "r" 'gnus-summary-reply)
- (define-key gnus-summary-mode-map "R" 'gnus-summary-reply-with-original)
- (define-key gnus-summary-mode-map "\C-c\C-f" 'gnus-summary-mail-forward)
- (define-key gnus-summary-mode-map "m" 'gnus-summary-mail-other-window)
- (define-key gnus-summary-mode-map "o" 'gnus-summary-save-article)
- (define-key gnus-summary-mode-map "\C-o" 'gnus-summary-save-in-mail)
- (define-key gnus-summary-mode-map "|" 'gnus-summary-pipe-output)
- (define-key gnus-summary-mode-map "\ek" 'gnus-summary-edit-local-kill)
- (define-key gnus-summary-mode-map "\eK" 'gnus-summary-edit-global-kill)
- (define-key gnus-summary-mode-map "V" 'gnus-version)
- (define-key gnus-summary-mode-map "q" 'gnus-summary-exit)
- (define-key gnus-summary-mode-map "Q" 'gnus-summary-quit)
- (define-key gnus-summary-mode-map "?" 'gnus-summary-describe-briefly)
- (define-key gnus-summary-mode-map "\C-c\C-i" 'gnus-info-find-node))
-
-(defun gnus-summary-mode ()
- "Major mode for reading articles in this newsgroup.
-All normal editing commands are turned off.
-Instead, these commands are available:
-
-SPC Scroll to the next page of the current article. The next unread
- article is selected automatically at the end of the message.
-DEL Scroll to the previous page of the current article.
-RET Scroll up (or down) one line the current article.
-n Move to the next unread article.
-p Move to the previous unread article.
-N Move to the next article.
-P Move to the previous article.
-ESC C-n Move to the next article which has the same subject as the
- current article.
-ESC C-p Move to the previous article which has the same subject as the
- current article.
-\\[gnus-summary-next-unread-same-subject]
- Move to the next unread article which has the same subject as the
- current article.
-\\[gnus-summary-prev-unread-same-subject]
- Move to the previous unread article which has the same subject as
- the current article.
-C-c C-n Scroll to the next digested message of the current article.
-C-c C-p Scroll to the previous digested message of the current article.
-C-n Move to the next subject.
-C-p Move to the previous subject.
-ESC n Move to the next unread subject.
-ESC p Move to the previous unread subject.
-\\[gnus-summary-next-group]
- Exit the current newsgroup and select the next unread newsgroup.
-\\[gnus-summary-prev-group]
- Exit the current newsgroup and select the previous unread newsgroup.
-. Jump to the first unread article in the current newsgroup.
-s Do an incremental search forward on the current article.
-ESC s Search for an article containing a regexp forward.
-ESC r Search for an article containing a regexp backward.
-< Move point to the beginning of the current article.
-> Move point to the end of the current article.
-j Jump to the article specified by the numeric article ID.
-l Jump to the article you read last.
-^ Refer to parent of the current article.
-ESC ^ Refer to the article specified by the Message-ID.
-u Mark the current article as unread, and go forward.
-U Mark the current article as unread, and go backward.
-d Mark the current article as read, and go forward.
-D Mark the current article as read, and go backward.
-ESC u Clear the current article's mark, and go forward.
-ESC U Clear the current article's mark, and go backward.
-k Mark articles which has the same subject as the current article as
- read, and then select the next unread article.
-C-k Mark articles which has the same subject as the current article as
- read.
-ESC k Edit a local KILL file applied to the current newsgroup.
-ESC K Edit a global KILL file applied to all newsgroups.
-ESC C-t Toggle showing conversation threads.
-ESC C-s Show thread subtrees.
-ESC C-h Hide thread subtrees.
-\\[gnus-summary-show-all-threads] Show all thread subtrees.
-\\[gnus-summary-hide-all-threads] Hide all thread subtrees.
-ESC C-f Go to the same level next thread.
-ESC C-b Go to the same level previous thread.
-ESC C-d Go downward current thread.
-ESC C-u Go upward current thread.
-ESC C-k Mark articles under current thread as read.
-& Execute a command for each article conditionally.
-\\[gnus-summary-catchup]
- Mark all articles as read in the current newsgroup, preserving
- articles marked as unread.
-\\[gnus-summary-catchup-all]
- Mark all articles as read in the current newsgroup.
-\\[gnus-summary-catchup-and-exit]
- Catch up all articles not marked as unread, and then exit the
- current newsgroup.
-\\[gnus-summary-catchup-all-and-exit]
- Catch up all articles, and then exit the current newsgroup.
-C-t Toggle truncations of subject lines.
-x Delete subject lines marked as read.
-X Delete subject lines with the specific marks.
-C-c C-s C-n Sort subjects by article number.
-C-c C-s C-a Sort subjects by article author.
-C-c C-s C-s Sort subjects alphabetically.
-C-c C-s C-d Sort subjects by date.
-= Expand Summary window to show headers full window.
-C-x C-s Reselect the current newsgroup. Prefix argument means to select all.
-w Stop page breaking by linefeed.
-C-c C-r Caesar rotates letters by 13/47 places.
-g Force to show the current article.
-t Show original article header if pruned header currently shown, or
- vice versa.
-ESC-t Toggle MIME processing.
-C-d Run RMAIL on the current digest article.
-a Post a new article.
-f Post a reply article.
-F Post a reply article with original article.
-C Cancel the current article.
-r Mail a message to the author.
-R Mail a message to the author with original author.
-C-c C-f Forward the current message to another user.
-m Mail a message in other window.
-o Save the current article in your favorite format.
-C-o Append the current article to a file in Unix mail format.
-| Pipe the contents of the current article to a subprocess.
-q Quit reading news in the current newsgroup.
-Q Quit reading news without recording unread articles information.
-V Show the version number of this GNUS.
-? Describe Summary mode commands briefly.
-C-h m Describe Summary mode.
-C-c C-i Read Info about Summary mode.
-
-User customizable variables:
- gnus-large-newsgroup
- The number of articles which indicates a large newsgroup. If the
- number of articles in a newsgroup is greater than the value, the
- number of articles to be selected is asked for. If the given value
- N is positive, the last N articles is selected. If N is negative,
- the first N articles are selected. An empty string means to select
- all articles.
-
- gnus-use-long-file-name
- Non-nil means that a newsgroup name is used as a default file name
- to save articles to. If it's nil, the directory form of a
- newsgroup is used instead.
-
- gnus-default-article-saver
- Specifies your favorite article saver which is interactively
- funcallable. Following functions are available:
-
- gnus-summary-save-in-rmail (in Rmail format)
- gnus-summary-save-in-mail (in Unix mail format)
- gnus-summary-save-in-folder (in MH folder)
- gnus-summary-save-in-file (in article format).
-
- gnus-rmail-save-name
- gnus-mail-save-name
- gnus-folder-save-name
- gnus-file-save-name
- Specifies a function generating a file name to save articles in
- specified format. The function is called with NEWSGROUP, HEADERS,
- and optional LAST-FILE. Access macros to the headers are defined
- as nntp-header-FIELD, and functions are defined as
- gnus-header-FIELD.
-
- gnus-article-save-directory
- Specifies a directory name to save articles to using the commands
- gnus-summary-save-in-rmail, gnus-summary-save-in-mail and
- gnus-summary-save-in-file. The variable is initialized from the
- SAVEDIR environment variable.
-
- gnus-show-all-headers
- Non-nil means that all headers of an article are shown.
-
- gnus-save-all-headers
- Non-nil means that all headers of an article are saved in a file.
-
- gnus-show-mime
- Non-nil means that show a MIME message.
-
- gnus-show-threads
- Non-nil means that conversation threads are shown in tree structure.
-
- gnus-thread-hide-subject
- Non-nil means that subjects for thread subtrees are hidden.
-
- gnus-thread-hide-subtree
- Non-nil means that thread subtrees are hidden initially.
-
- gnus-thread-hide-killed
- Non-nil means that killed thread subtrees are hidden automatically.
-
- gnus-thread-ignore-subject
- Non-nil means that subject differences are ignored in constructing
- thread trees.
-
- gnus-thread-indent-level
- Indentation of thread subtrees.
-
- gnus-optional-headers
- Specifies a function which generates an optional string displayed
- in the Summary buffer. The function is called with an article
- HEADERS. The result must be a string excluding `[' and `]'. The
- default function returns a string like NNN:AUTHOR, where NNN is
- the number of lines in an article and AUTHOR is the name of the
- author.
-
- gnus-auto-extend-newsgroup
- Non-nil means visible articles are extended to forward and
- backward automatically if possible.
-
- gnus-auto-select-first
- Non-nil means the first unread article is selected automagically
- when a newsgroup is selected normally (by gnus-group-read-group).
- If you'd like to prevent automatic selection of the first unread
- article in some newsgroups, set the variable to nil in
- gnus-select-group-hook or gnus-apply-kill-hook.
-
- gnus-auto-select-next
- Non-nil means the next newsgroup is selected automagically at the
- end of the newsgroup. If the value is t and the next newsgroup is
- empty (no unread articles), GNUS will exit Summary mode and go
- back to Group mode. If the value is neither nil nor t, GNUS won't
- exit Summary mode but select the following unread newsgroup.
- Especially, if the value is the symbol `quietly', the next unread
- newsgroup will be selected without any confirmations.
-
- gnus-auto-select-same
- Non-nil means an article with the same subject as the current
- article is selected automagically like `rn -S'.
-
- gnus-auto-center-summary
- Non-nil means the point of Summary Mode window is always kept
- centered.
-
- gnus-break-pages
- Non-nil means an article is broken into pages at page delimiters.
- This may not work with some versions of GNU Emacs earlier than
- version 18.50.
-
- gnus-page-delimiter
- Specifies a regexp describing line-beginnings that separate pages
- of news article.
-
- [gnus-more-message is obsolete. overlay-arrow-string interfares
- with other subsystems, such as dbx mode.]
-
- gnus-digest-show-summary
- Non-nil means that a summary of digest messages is shown when
- reading a digest article using `gnus-summary-rmail-digest'
- command.
-
- gnus-digest-separator
- Specifies a regexp separating messages in a digest article.
-
- gnus-mail-reply-method
- gnus-mail-other-window-method
- Specifies a function to begin composing mail message using
- commands gnus-summary-reply and gnus-summary-mail-other-window.
- Functions gnus-mail-reply-using-mail and gnus-mail-reply-using-mhe
- are available for the value of gnus-mail-reply-method. And
- functions gnus-mail-other-window-using-mail and
- gnus-mail-other-window-using-mhe are available for the value of
- gnus-mail-other-window-method.
-
- gnus-mail-send-method
- Specifies a function to mail a message too which is being posted
- as an article. The message must have To: or Cc: field. The value
- of the variable send-mail-function is the default function which
- uses sendmail mail program.
-
-Various hooks for customization:
- gnus-summary-mode-hook
- Entry to this mode calls the value with no arguments, if that
- value is non-nil.
-
- gnus-select-group-hook
- Called with no arguments when newsgroup is selected, if that value
- is non-nil. It is possible to sort subjects in this hook. See the
- documentation of this variable for more information.
-
- gnus-summary-prepare-hook
- Called with no arguments after a summary list is created in the
- Summary buffer, if that value is non-nil. If you'd like to modify
- the buffer, you can use this hook.
-
- gnus-select-article-hook
- Called with no arguments when an article is selected, if that
- value is non-nil. See the documentation of this variable for more
- information.
-
- gnus-select-digest-hook
- Called with no arguments when reading digest messages using Rmail,
- if that value is non-nil. This hook can be used to modify an
- article so that Rmail can work with it. See the documentation of
- the variable for more information.
-
- gnus-rmail-digest-hook
- Called with no arguments when reading digest messages using Rmail,
- if that value is non-nil. This hook is intended to customize Rmail
- mode.
-
- gnus-apply-kill-hook
- Called with no arguments when a newsgroup is selected and the
- Summary buffer is prepared. This hook is intended to apply a KILL
- file to the selected newsgroup. The format of KILL file is
- completely different from that of version 3.8. You have to rewrite
- them in the new format. See the documentation of Kill file mode
- for more information.
-
- gnus-mark-article-hook
- Called with no arguments when an article is selected at the first
- time. The hook is intended to mark an article as read (or unread)
- automatically when it is selected. See the documentation of the
- variable for more information.
-
- gnus-exit-group-hook
- Called with no arguments when exiting the current newsgroup, if
- that value is non-nil. If your machine is so slow that exiting
- from Summary mode takes very long time, inhibit marking articles
- as read using cross-references by setting the variable
- gnus-use-cross-reference to nil in this hook."
- (interactive)
- (kill-all-local-variables)
- ;; Gee. Why don't you upgrade?
- (cond ((boundp 'mode-line-modified)
- (setq mode-line-modified "--- "))
- ((listp (default-value 'mode-line-format))
- (setq mode-line-format
- (cons "--- " (cdr (default-value 'mode-line-format))))))
- ;; To disable display-time facility.
- ;;(make-local-variable 'global-mode-string)
- ;;(setq global-mode-string nil)
- (setq major-mode 'gnus-summary-mode)
- (setq mode-name "Summary")
- ;;(setq mode-line-process '(" " gnus-newsgroup-name))
- (make-local-variable 'minor-mode-alist)
- (or (assq 'gnus-show-threads minor-mode-alist)
- (setq minor-mode-alist
- (cons (list 'gnus-show-threads " Thread") minor-mode-alist)))
- (gnus-summary-set-mode-line)
- (use-local-map gnus-summary-mode-map)
- (buffer-flush-undo (current-buffer))
- (setq buffer-read-only t) ;Disable modification
- (setq truncate-lines t) ;Stop line folding
- (setq selective-display t)
- (setq selective-display-ellipses t) ;Display `...'
- ;;(setq case-fold-search t)
- (run-hooks 'gnus-summary-mode-hook))
-
-(defun gnus-summary-setup-buffer ()
- "Initialize Summary buffer."
- (if (get-buffer gnus-summary-buffer)
- (set-buffer gnus-summary-buffer)
- (set-buffer (get-buffer-create gnus-summary-buffer))
- (gnus-summary-mode)
- ))
-
-(defun gnus-summary-read-group (group &optional show-all no-article)
- "Start reading news in newsgroup GROUP.
-If optional 1st argument SHOW-ALL is non-nil, already read articles are
-also listed.
-If optional 2nd argument NO-ARTICLE is non-nil, no article is selected
-initially."
- (message "Retrieving newsgroup: %s..." group)
- (if (gnus-select-newsgroup group show-all)
- (progn
- ;; Don't switch-to-buffer to prevent displaying old contents
- ;; of the buffer until new subjects list is created.
- ;; Suggested by Juha Heinanen <jh@tut.fi>
- (gnus-summary-setup-buffer)
- ;; You can change the order of subjects in this hook.
- (run-hooks 'gnus-select-group-hook)
- (gnus-summary-prepare)
- ;; Function `gnus-apply-kill-file' must be called in this hook.
- (run-hooks 'gnus-apply-kill-hook)
- (if (zerop (buffer-size))
- ;; This newsgroup is empty.
- (progn
- (gnus-summary-catchup-and-exit nil t) ;Without confirmations.
- (message "No unread news"))
- ;; Hide conversation thread subtrees. We cannot do this in
- ;; gnus-summary-prepare-hook since kill processing may not
- ;; work with hidden articles.
- (and gnus-show-threads
- gnus-thread-hide-subtree
- (gnus-summary-hide-all-threads))
- ;; Show first unread article if requested.
- (goto-char (point-min))
- (if (and (not no-article)
- gnus-auto-select-first
- (gnus-summary-first-unread-article))
- ;; Window is configured automatically.
- ;; Current buffer may be changed as a result of hook
- ;; evaluation, especially by gnus-summary-rmail-digest
- ;; command, so we should adjust cursor point carefully.
- (if (eq (current-buffer) (get-buffer gnus-summary-buffer))
- (progn
- ;; Adjust cursor point.
- (beginning-of-line)
- (search-forward ":" nil t)))
- (gnus-configure-windows 'summary)
- (pop-to-buffer gnus-summary-buffer)
- (gnus-summary-set-mode-line)
- ;; I sometime get confused with the old Article buffer.
- (if (get-buffer gnus-article-buffer)
- (if (get-buffer-window gnus-article-buffer)
- (save-excursion
- (set-buffer gnus-article-buffer)
- (let ((buffer-read-only nil))
- (erase-buffer)))
- (kill-buffer gnus-article-buffer)))
- ;; Adjust cursor point.
- (beginning-of-line)
- (search-forward ":" nil t))
- ))
- ;; Cannot select newsgroup GROUP.
- (if (gnus-gethash group gnus-active-hashtb)
- (progn
- ;; If NNTP is used, nntp_access file may not be installed
- ;; properly. Otherwise, may be active file problem.
- (ding)
- (message
- (gnus-nntp-message
- (format "Cannot select %s. May be security or active file problem." group)))
- (sit-for 0))
- ;; Check bogus newsgroups.
- ;; We must be in Group Mode buffer.
- (gnus-group-check-bogus-groups))
- ))
-
-(defun gnus-summary-prepare ()
- "Prepare summary list of current newsgroup in Summary buffer."
- (let ((buffer-read-only nil))
- ;; Note: The next codes are not actually used because the user who
- ;; want it can define them in gnus-select-group-hook.
- ;; Print verbose messages if too many articles are selected.
- ;; (and (numberp gnus-large-newsgroup)
- ;; (> (length gnus-newsgroup-headers) gnus-large-newsgroup)
- ;; (message "Preparing headers..."))
- (erase-buffer)
- (gnus-summary-prepare-threads
- (if gnus-show-threads
- (gnus-make-threads gnus-newsgroup-headers)
- gnus-newsgroup-headers) 0)
- ;; Erase header retrieval message.
- (message "")
- ;; Call hooks for modifying Summary buffer.
- ;; Suggested by sven@tde.LTH.Se (Sven Mattisson).
- (goto-char (point-min))
- (run-hooks 'gnus-summary-prepare-hook)
- ))
-
-;; Basic ideas by Paul Dworkin <paul@media-lab.media.mit.edu>
-;; Subject bug fix by jbw@bigbird.bu.edu (Joe Wells)
-
-(defun gnus-summary-prepare-threads (threads level &optional parent-subject)
- "Prepare Summary buffer from THREADS and indentation LEVEL.
-THREADS is a list of `(PARENT [(CHILD1 [(GRANDCHILD ...]...) ...]).'
-Optional PARENT-SUBJECT specifies the subject of the parent."
- (let ((thread nil)
- (header nil)
- (number nil)
- (subject nil)
- (child-subject nil)
- (parent-subject (or parent-subject ""))
- ;; `M Indent NUM: [OPT] SUBJECT'
- (cntl (format "%%s %%s%%%dd: [%%s] %%s\n"
- (length (prin1-to-string gnus-newsgroup-end)))))
- (while threads
- (setq thread (car threads))
- (setq threads (cdr threads))
- ;; If thread is a cons, hierarchical threads is given.
- ;; Otherwise, thread itself is header.
- (if (consp thread)
- (setq header (car thread))
- (setq header thread))
- ;; Print valid header only.
- (if (vectorp header) ;Depends on nntp.el.
- (progn
- (setq number (nntp-header-number header))
- (setq subject (nntp-header-subject header))
- (setq child-subject (gnus-simplify-subject subject 're-only))
- (insert
- (format cntl
- ;; Read or not.
- (cond ((memq number gnus-newsgroup-marked) "-")
- ((memq number gnus-newsgroup-unreads) " ")
- (t "D"))
- ;; Thread level.
- (make-string (* level gnus-thread-indent-level) ? )
- ;; Article number.
- number
- ;; Optional headers.
- (or (and gnus-optional-headers
- (funcall gnus-optional-headers header)) "")
- ;; Its subject string.
- (concat (if (or (zerop level)
- (not gnus-thread-hide-subject)
- ;; Subject is different from the parent.
- (not (string-equal
- parent-subject child-subject)))
- nil
- (make-string (window-width) ? ))
- subject)
- ))
- ))
- ;; Print subthreads.
- (and (consp thread)
- (cdr thread)
- (gnus-summary-prepare-threads
- (cdr thread) (1+ level) child-subject))
- )))
-
-;;(defun gnus-summary-set-mode-line ()
-;; "Set Summary mode line string."
-;; ;; The value must be a string to escape %-constructs.
-;; (let ((subject
-;; (if gnus-current-headers
-;; (nntp-header-subject gnus-current-headers) gnus-newsgroup-name)))
-;; (setq mode-line-buffer-identification
-;; (concat "GNUS: "
-;; subject
-;; ;; Enough spaces to pad subject to 17 positions.
-;; (make-string (max 0 (- 17 (length subject))) ? ))))
-;; (set-buffer-modified-p t))
-
-;; New implementation in gnus 3.14.3
-
-(defun gnus-summary-set-mode-line ()
- "Set Summary mode line string.
-If you don't like it, define your own gnus-summary-set-mode-line."
- (let ((unmarked
- (- (length gnus-newsgroup-unreads)
- (length (gnus-intersection
- gnus-newsgroup-unreads gnus-newsgroup-marked))))
- (unselected
- (- (length gnus-newsgroup-unselected)
- (length (gnus-intersection
- gnus-newsgroup-unselected gnus-newsgroup-marked)))))
- (setq mode-line-buffer-identification
- (list 17
- (format "GNUS: %s%s %s"
- gnus-newsgroup-name
- (if gnus-current-article
- (format "/%d" gnus-current-article) "")
- ;; Basic ideas by tale@pawl.rpi.edu.
- (cond ((and (zerop unmarked)
- (zerop unselected))
- "")
- ((zerop unselected)
- (format "{%d more}" unmarked))
- (t
- (format "{%d(+%d) more}" unmarked unselected)))
- ))))
- (set-buffer-modified-p t))
-
-;; GNUS Summary mode command.
-
-(defun gnus-summary-search-group (&optional backward)
- "Search for next unread newsgroup.
-If optional argument BACKWARD is non-nil, search backward instead."
- (save-excursion
- (set-buffer gnus-group-buffer)
- (save-excursion
- ;; We don't want to alter current point of Group mode buffer.
- (if (gnus-group-search-forward backward nil)
- (gnus-group-group-name))
- )))
-
-(defun gnus-summary-search-subject (backward unread subject)
- "Search for article forward.
-If 1st argument BACKWARD is non-nil, search backward.
-If 2nd argument UNREAD is non-nil, only unread article is selected.
-If 3rd argument SUBJECT is non-nil, the article which has
-the same subject will be searched for."
- (let ((func
- (if backward
- (function re-search-backward) (function re-search-forward)))
- (article nil)
- ;; We have to take care of hidden lines.
- (regexp
- (format "^%s[ \t]+\\([0-9]+\\):.\\[[^]\r\n]*\\][ \t]+%s"
- ;;(if unread " " ".")
- (cond ((eq unread t) " ") (unread "[ ---]") (t "."))
- (if subject
- (concat "\\([Rr][Ee]:[ \t]+\\)*"
- (regexp-quote (gnus-simplify-subject subject))
- ;; Ignore words in parentheses.
- "\\([ \t]*([^\r\n]*)\\)*[ \t]*\\(\r\\|$\\)")
- "")
- )))
- (if backward
- (beginning-of-line)
- (end-of-line))
- (if (funcall func regexp nil t)
- (setq article
- (string-to-int
- (buffer-substring (match-beginning 1) (match-end 1)))))
- ;; Adjust cursor point.
- (beginning-of-line)
- (search-forward ":" nil t)
- ;; This is the result.
- article
- ))
-
-(defun gnus-summary-search-forward (&optional unread subject)
- "Search for article forward.
-If 1st optional argument UNREAD is non-nil, only unread article is selected.
-If 2nd optional argument SUBJECT is non-nil, the article which has
-the same subject will be searched for."
- (gnus-summary-search-subject nil unread subject))
-
-(defun gnus-summary-search-backward (&optional unread subject)
- "Search for article backward.
-If 1st optional argument UNREAD is non-nil, only unread article is selected.
-If 2nd optional argument SUBJECT is non-nil, the article which has
-the same subject will be searched for."
- (gnus-summary-search-subject t unread subject))
-
-(defun gnus-summary-article-number ()
- "Article number around point. If nothing, return current number."
- (save-excursion
- (beginning-of-line)
- (if (looking-at ".[ \t]+\\([0-9]+\\):")
- (string-to-int
- (buffer-substring (match-beginning 1) (match-end 1)))
- ;; If search fail, return current article number.
- gnus-current-article
- )))
-
-(defun gnus-summary-subject-string ()
- "Return current subject string or nil if nothing."
- (save-excursion
- ;; It is possible to implement this function using
- ;; `gnus-summary-article-number' and `gnus-newsgroup-headers'.
- (beginning-of-line)
- ;; We have to take care of hidden lines.
- (if (looking-at ".[ \t]+[0-9]+:.\\[[^]\r\n]*\\][ \t]+\\([^\r\n]*\\)[\r\n]")
- (buffer-substring (match-beginning 1) (match-end 1)))
- ))
-
-(defun gnus-summary-goto-subject (article)
- "Move point to ARTICLE's subject."
- (interactive
- (list
- (string-to-int
- (completing-read "Article number: "
- (mapcar
- (function
- (lambda (headers)
- (list
- (int-to-string (nntp-header-number headers)))))
- gnus-newsgroup-headers)
- nil 'require-match))))
- (let ((current (point)))
- (goto-char (point-min))
- (or (and article (re-search-forward (format "^.[ \t]+%d:" article) nil t))
- (progn (goto-char current) nil))
- ))
-
-(defun gnus-summary-recenter ()
- "Center point in Summary window."
- ;; Scroll window so as to cursor comes center of Summary window
- ;; only when article is displayed.
- ;; Suggested by earle@mahendo.JPL.NASA.GOV (Greg Earle).
- ;; Recenter only when requested.
- ;; Subbested by popovich@park.cs.columbia.edu
- (and gnus-auto-center-summary
- (get-buffer-window gnus-article-buffer)
- (< (/ (- (window-height) 1) 2)
- (count-lines (point) (point-max)))
- (recenter (/ (- (window-height) 2) 2))))
-
-;; Walking around Group mode buffer.
-
-(defun gnus-summary-jump-to-group (newsgroup)
- "Move point to NEWSGROUP in Group mode buffer."
- ;; Keep update point of Group mode buffer if visible.
- (if (eq (current-buffer)
- (get-buffer gnus-group-buffer))
- (save-window-excursion
- ;; Take care of tree window mode.
- (if (get-buffer-window gnus-group-buffer)
- (pop-to-buffer gnus-group-buffer))
- (gnus-group-jump-to-group newsgroup))
- (save-excursion
- ;; Take care of tree window mode.
- (if (get-buffer-window gnus-group-buffer)
- (pop-to-buffer gnus-group-buffer)
- (set-buffer gnus-group-buffer))
- (gnus-group-jump-to-group newsgroup))))
-
-(defun gnus-summary-next-group (no-article)
- "Exit current newsgroup and then select next unread newsgroup.
-If prefix argument NO-ARTICLE is non-nil, no article is selected initially."
- (interactive "P")
- ;; Make sure Group mode buffer point is on current newsgroup.
- (gnus-summary-jump-to-group gnus-newsgroup-name)
- (let ((group (gnus-summary-search-group)))
- (if (null group)
- (progn
- (message "Exiting %s..." gnus-newsgroup-name)
- (gnus-summary-exit)
- (message ""))
- (message "Selecting %s..." group)
- (gnus-summary-exit t) ;Exit Summary mode temporary.
- ;; We are now in Group mode buffer.
- ;; Make sure Group mode buffer point is on GROUP.
- (gnus-summary-jump-to-group group)
- (gnus-summary-read-group group nil no-article)
- (or (eq (current-buffer)
- (get-buffer gnus-summary-buffer))
- (eq gnus-auto-select-next t)
- ;; Expected newsgroup has nothing to read since the articles
- ;; are marked as read by cross-referencing. So, try next
- ;; newsgroup. (Make sure we are in Group mode buffer now.)
- (and (eq (current-buffer)
- (get-buffer gnus-group-buffer))
- (gnus-group-group-name)
- (gnus-summary-read-group
- (gnus-group-group-name) nil no-article))
- )
- )))
-
-(defun gnus-summary-prev-group (no-article)
- "Exit current newsgroup and then select previous unread newsgroup.
-If prefix argument NO-ARTICLE is non-nil, no article is selected initially."
- (interactive "P")
- ;; Make sure Group mode buffer point is on current newsgroup.
- (gnus-summary-jump-to-group gnus-newsgroup-name)
- (let ((group (gnus-summary-search-group t)))
- (if (null group)
- (progn
- (message "Exiting %s..." gnus-newsgroup-name)
- (gnus-summary-exit)
- (message ""))
- (message "Selecting %s..." group)
- (gnus-summary-exit t) ;Exit Summary mode temporary.
- ;; We are now in Group mode buffer.
- ;; We have to adjust point of Group mode buffer because current
- ;; point is moved to next unread newsgroup by exiting.
- (gnus-summary-jump-to-group group)
- (gnus-summary-read-group group nil no-article)
- (or (eq (current-buffer)
- (get-buffer gnus-summary-buffer))
- (eq gnus-auto-select-next t)
- ;; Expected newsgroup has nothing to read since the articles
- ;; are marked as read by cross-referencing. So, try next
- ;; newsgroup. (Make sure we are in Group mode buffer now.)
- (and (eq (current-buffer)
- (get-buffer gnus-group-buffer))
- (gnus-summary-search-group t)
- (gnus-summary-read-group
- (gnus-summary-search-group t) nil no-article))
- )
- )))
-
-;; Walking around summary lines.
-
-(defun gnus-summary-next-subject (n &optional unread)
- "Go to next N'th summary line.
-If optional argument UNREAD is non-nil, only unread article is selected."
- (interactive "p")
- (while (and (> n 1)
- (gnus-summary-search-forward unread))
- (setq n (1- n)))
- (cond ((gnus-summary-search-forward unread)
- (gnus-summary-recenter))
- (unread
- (message "No more unread articles"))
- (t
- (message "No more articles"))
- ))
-
-(defun gnus-summary-next-unread-subject (n)
- "Go to next N'th unread summary line."
- (interactive "p")
- (gnus-summary-next-subject n t))
-
-(defun gnus-summary-prev-subject (n &optional unread)
- "Go to previous N'th summary line.
-If optional argument UNREAD is non-nil, only unread article is selected."
- (interactive "p")
- (while (and (> n 1)
- (gnus-summary-search-backward unread))
- (setq n (1- n)))
- (cond ((gnus-summary-search-backward unread)
- (gnus-summary-recenter))
- (unread
- (message "No more unread articles"))
- (t
- (message "No more articles"))
- ))
-
-(defun gnus-summary-prev-unread-subject (n)
- "Go to previous N'th unread summary line."
- (interactive "p")
- (gnus-summary-prev-subject n t))
-
-;; Walking around summary lines with displaying articles.
-
-(defun gnus-summary-expand-window ()
- "Expand Summary window to show headers full window."
- (interactive)
- (gnus-configure-windows 'summary)
- (pop-to-buffer gnus-summary-buffer))
-
-(defun gnus-summary-display-article (article &optional all-header)
- "Display ARTICLE in Article buffer."
- (if (null article)
- nil
- (gnus-configure-windows 'article)
- (pop-to-buffer gnus-summary-buffer)
- (gnus-article-prepare article all-header)
- (gnus-summary-recenter)
- (gnus-summary-set-mode-line)
- (run-hooks 'gnus-select-article-hook)
- ;; Successfully display article.
- t
- ))
-
-(defun gnus-summary-select-article (&optional all-headers force)
- "Select the current article.
-Optional first argument ALL-HEADERS is non-nil, show all header fields.
-Optional second argument FORCE is nil, the article is only selected
-again when current header does not match with ALL-HEADERS option."
- (let ((article (gnus-summary-article-number))
- (all-headers (not (not all-headers)))) ;Must be T or NIL.
- (if (or (null gnus-current-article)
- (/= article gnus-current-article)
- (and force (not (eq all-headers gnus-have-all-headers))))
- ;; The selected one is different from that of the current article.
- (gnus-summary-display-article article all-headers)
- (gnus-configure-windows 'article)
- (pop-to-buffer gnus-summary-buffer))
- ))
-
-(defun gnus-summary-set-current-mark (&optional current-mark)
- "Put `+' at the current article.
-Optional argument specifies CURRENT-MARK instead of `+'."
- (save-excursion
- (set-buffer gnus-summary-buffer)
- (let ((buffer-read-only nil))
- (goto-char (point-min))
- ;; First of all clear mark at last article.
- (if (re-search-forward "^.[ \t]+[0-9]+:[^ \t]" nil t)
- (progn
- (delete-char -1)
- (insert " ")
- (goto-char (point-min))))
- (if (re-search-forward (format "^.[ \t]+%d:" gnus-current-article) nil t)
- (progn
- (delete-char 1)
- (insert (or current-mark "+"))))
- )))
-
-;;(defun gnus-summary-next-article (unread &optional subject)
-;; "Select article after current one.
-;;If argument UNREAD is non-nil, only unread article is selected."
-;; (interactive "P")
-;; (cond ((gnus-summary-display-article
-;; (gnus-summary-search-forward unread subject)))
-;; (unread
-;; (message "No more unread articles"))
-;; (t
-;; (message "No more articles"))
-;; ))
-
-(defun gnus-summary-next-article (unread &optional subject)
- "Select article after current one.
-If argument UNREAD is non-nil, only unread article is selected."
- (interactive "P")
- (let ((header nil))
- (cond ((gnus-summary-display-article
- (gnus-summary-search-forward unread subject)))
- ((and subject
- gnus-auto-select-same
- (gnus-set-difference gnus-newsgroup-unreads
- gnus-newsgroup-marked)
- (memq this-command
- '(gnus-summary-next-unread-article
- gnus-summary-next-page
- gnus-summary-kill-same-subject-and-select
- ;;gnus-summary-next-article
- ;;gnus-summary-next-same-subject
- ;;gnus-summary-next-unread-same-subject
- )))
- ;; Wrap article pointer if there are unread articles.
- ;; Hook function, such as gnus-summary-rmail-digest, may
- ;; change current buffer, so need check.
- (let ((buffer (current-buffer))
- (last-point (point)))
- ;; No more articles with same subject, so jump to the first
- ;; unread article.
- (gnus-summary-first-unread-article)
- ;;(and (eq buffer (current-buffer))
- ;; (= (point) last-point)
- ;; ;; Ignore given SUBJECT, and try again.
- ;; (gnus-summary-next-article unread nil))
- (and (eq buffer (current-buffer))
- (< (point) last-point)
- (message "Wrapped"))
- ))
- ((and gnus-auto-extend-newsgroup
- (not unread) ;Not unread only
- (not subject) ;Only if subject is not specified.
- (setq header (gnus-more-header-forward)))
- ;; Extend to next article if possible.
- ;; Basic ideas by himacdonald@watdragon.waterloo.edu
- (gnus-extend-newsgroup header nil)
- ;; Threads feature must be turned off.
- (let ((buffer-read-only nil))
- (goto-char (point-max))
- (gnus-summary-prepare-threads (list header) 0))
- (gnus-summary-goto-article gnus-newsgroup-end))
- (t
- ;; Select next newsgroup automatically if requested.
- (let ((cmd (string-to-char (this-command-keys)))
- (group (gnus-summary-search-group))
- (auto-select
- (and gnus-auto-select-next
- ;;(null (gnus-set-difference gnus-newsgroup-unreads
- ;; gnus-newsgroup-marked))
- (memq this-command
- '(gnus-summary-next-unread-article
- gnus-summary-next-article
- gnus-summary-next-page
- gnus-summary-next-same-subject
- gnus-summary-next-unread-same-subject
- gnus-summary-kill-same-subject
- gnus-summary-kill-same-subject-and-select
- ))
- ;; Ignore characters typed ahead.
- (not (input-pending-p))
- )))
- (message "No more%s articles%s"
- (if unread " unread" "")
- (if (and auto-select
- (not (eq gnus-auto-select-next 'quietly)))
- (if group
- (format " (Type %s for %s [%d])"
- (key-description (char-to-string cmd))
- group
- (nth 1 (gnus-gethash group
- gnus-unread-hashtb)))
- (format " (Type %s to exit %s)"
- (key-description (char-to-string cmd))
- gnus-newsgroup-name
- ))
- ""))
- ;; Select next unread newsgroup automagically.
- (cond ((and auto-select
- (eq gnus-auto-select-next 'quietly))
- ;; Select quietly.
- (gnus-summary-next-group nil))
- (auto-select
- ;; Confirm auto selection.
- (let ((char (read-char)))
- (if (= char cmd)
- (gnus-summary-next-group nil)
- (setq unread-command-char char))))
- )
- ))
- )))
-
-(defun gnus-summary-next-unread-article ()
- "Select unread article after current one."
- (interactive)
- (gnus-summary-next-article t (and gnus-auto-select-same
- (gnus-summary-subject-string))))
-
-(defun gnus-summary-prev-article (unread &optional subject)
- "Select article before current one.
-If argument UNREAD is non-nil, only unread article is selected."
- (interactive "P")
- (let ((header nil))
- (cond ((gnus-summary-display-article
- (gnus-summary-search-backward unread subject)))
- ((and subject
- gnus-auto-select-same
- (gnus-set-difference gnus-newsgroup-unreads
- gnus-newsgroup-marked)
- (memq this-command
- '(gnus-summary-prev-unread-article
- ;;gnus-summary-prev-page
- ;;gnus-summary-prev-article
- ;;gnus-summary-prev-same-subject
- ;;gnus-summary-prev-unread-same-subject
- )))
- ;; Ignore given SUBJECT, and try again.
- (gnus-summary-prev-article unread nil))
- (unread
- (message "No more unread articles"))
- ((and gnus-auto-extend-newsgroup
- (not subject) ;Only if subject is not specified.
- (setq header (gnus-more-header-backward)))
- ;; Extend to previous article if possible.
- ;; Basic ideas by himacdonald@watdragon.waterloo.edu
- (gnus-extend-newsgroup header t)
- (let ((buffer-read-only nil))
- (goto-char (point-min))
- (gnus-summary-prepare-threads (list header) 0))
- (gnus-summary-goto-article gnus-newsgroup-begin))
- (t
- (message "No more articles"))
- )))
-
-(defun gnus-summary-prev-unread-article ()
- "Select unred article before current one."
- (interactive)
- (gnus-summary-prev-article t (and gnus-auto-select-same
- (gnus-summary-subject-string))))
-
-(defun gnus-summary-next-page (lines)
- "Show next page of selected article.
-If end of article, select next article.
-Argument LINES specifies lines to be scrolled up."
- (interactive "P")
- (let ((article (gnus-summary-article-number))
- (endp nil))
- (if (or (null gnus-current-article)
- (/= article gnus-current-article))
- ;; Selected subject is different from current article's.
- (gnus-summary-display-article article)
- (gnus-configure-windows 'article)
- (pop-to-buffer gnus-summary-buffer)
- (gnus-eval-in-buffer-window gnus-article-buffer
- (setq endp (gnus-article-next-page lines)))
- (cond ((and endp lines)
- (message "End of message"))
- ((and endp (null lines))
- (gnus-summary-next-unread-article)))
- )))
-
-(defun gnus-summary-prev-page (lines)
- "Show previous page of selected article.
-Argument LINES specifies lines to be scrolled down."
- (interactive "P")
- (let ((article (gnus-summary-article-number)))
- (if (or (null gnus-current-article)
- (/= article gnus-current-article))
- ;; Selected subject is different from current article's.
- (gnus-summary-display-article article)
- (gnus-configure-windows 'article)
- (pop-to-buffer gnus-summary-buffer)
- (gnus-eval-in-buffer-window gnus-article-buffer
- (gnus-article-prev-page lines))
- )))
-
-(defun gnus-summary-scroll-up (lines)
- "Scroll up (or down) one line current article.
-Argument LINES specifies lines to be scrolled up (or down if negative)."
- (interactive "p")
- (gnus-summary-select-article)
- (gnus-eval-in-buffer-window gnus-article-buffer
- (cond ((> lines 0)
- (if (gnus-article-next-page lines)
- (message "End of message")))
- ((< lines 0)
- (gnus-article-prev-page (- 0 lines))))
- ))
-
-(defun gnus-summary-next-same-subject ()
- "Select next article which has the same subject as current one."
- (interactive)
- (gnus-summary-next-article nil (gnus-summary-subject-string)))
-
-(defun gnus-summary-prev-same-subject ()
- "Select previous article which has the same subject as current one."
- (interactive)
- (gnus-summary-prev-article nil (gnus-summary-subject-string)))
-
-(defun gnus-summary-next-unread-same-subject ()
- "Select next unread article which has the same subject as current one."
- (interactive)
- (gnus-summary-next-article t (gnus-summary-subject-string)))
-
-(defun gnus-summary-prev-unread-same-subject ()
- "Select previous unread article which has the same subject as current one."
- (interactive)
- (gnus-summary-prev-article t (gnus-summary-subject-string)))
-
-(defun gnus-summary-refer-parent-article (child)
- "Refer parent article of current article.
-If a prefix argument CHILD is non-nil, go back to the child article
-using internally maintained articles history.
-NOTE: This command may not work with nnspool.el."
- (interactive "P")
- (gnus-summary-select-article t t) ;Request all headers.
- (let ((referenced-id nil)) ;Message-id of parent or child article.
- (if child
- ;; Go back to child article using history.
- (gnus-summary-refer-article nil)
- (gnus-eval-in-buffer-window gnus-article-buffer
- ;; Look for parent Message-ID.
- ;; We cannot use gnus-current-headers to get references
- ;; because we may be looking at parent or referred article.
- (let ((references (gnus-fetch-field "References")))
- ;; Get the last message-id in the references.
- (and references
- (string-match "\\(<[^<>]+>\\)[^>]*\\'" references)
- (setq referenced-id
- (substring references
- (match-beginning 1) (match-end 1))))
- ))
- (if (stringp referenced-id)
- (gnus-summary-refer-article referenced-id)
- (error "No more parents"))
- )))
-
-(defun gnus-summary-refer-article (message-id)
- "Refer article specified by MESSAGE-ID.
-If the MESSAGE-ID is nil or an empty string, Message-ID is poped from
-internally maintained articles history.
-NOTE: This command may not work with nnspool.el nor mhspool.el."
- (interactive "sMessage-ID: ")
- ;; Make sure that this command depends on the fact that article
- ;; related information is not updated when an article is retrieved
- ;; by Message-ID.
- (gnus-summary-select-article t t) ;Request all headers.
- (if (and (stringp message-id)
- (> (length message-id) 0))
- (gnus-eval-in-buffer-window gnus-article-buffer
- ;; Construct the correct Message-ID if necessary.
- ;; Suggested by tale@pawl.rpi.edu.
- (or (string-match "^<" message-id)
- (setq message-id (concat "<" message-id)))
- (or (string-match ">$" message-id)
- (setq message-id (concat message-id ">")))
- ;; Push current message-id on history.
- ;; We cannot use gnus-current-headers to get current
- ;; message-id because we may be looking at parent or referred
- ;; article.
- (let ((current (gnus-fetch-field "Message-ID")))
- (or (equal current message-id) ;Nothing to do.
- (equal current (car gnus-current-history))
- (setq gnus-current-history
- (cons current gnus-current-history)))
- ))
- ;; Pop message-id from history.
- (setq message-id (car gnus-current-history))
- (setq gnus-current-history (cdr gnus-current-history)))
- (if (stringp message-id)
- ;; Retrieve article by message-id. This may not work with
- ;; nnspool nor mhspool.
- (gnus-article-prepare message-id t)
- (error "No such references"))
- )
-
-(defun gnus-summary-next-digest (nth)
- "Move to head of NTH next digested message."
- (interactive "p")
- (gnus-summary-select-article)
- (gnus-eval-in-buffer-window gnus-article-buffer
- (gnus-article-next-digest (or nth 1))
- ))
-
-(defun gnus-summary-prev-digest (nth)
- "Move to head of NTH previous digested message."
- (interactive "p")
- (gnus-summary-select-article)
- (gnus-eval-in-buffer-window gnus-article-buffer
- (gnus-article-prev-digest (or nth 1))
- ))
-
-(defun gnus-summary-first-unread-article ()
- "Select first unread article. Return non-nil if successfully selected."
- (interactive)
- (let ((begin (point)))
- (goto-char (point-min))
- (if (re-search-forward "^ [ \t]+[0-9]+:" nil t)
- (gnus-summary-display-article (gnus-summary-article-number))
- ;; If there is no unread articles, stay there.
- (goto-char begin)
- ;;(gnus-summary-display-article (gnus-summary-article-number))
- (message "No more unread articles")
- nil
- )
- ))
-
-(defun gnus-summary-isearch-article ()
- "Do incremental search forward on current article."
- (interactive)
- (gnus-summary-select-article)
- (gnus-eval-in-buffer-window gnus-article-buffer
- (isearch-forward)))
-
-(defun gnus-summary-search-article-forward (regexp)
- "Search for an article containing REGEXP forward.
-gnus-select-article-hook is not called during the search."
- (interactive
- (list (read-string
- (concat "Search forward (regexp): "
- (if gnus-last-search-regexp
- (concat "(default " gnus-last-search-regexp ") "))))))
- (if (string-equal regexp "")
- (setq regexp (or gnus-last-search-regexp ""))
- (setq gnus-last-search-regexp regexp))
- (if (gnus-summary-search-article regexp nil)
- (gnus-eval-in-buffer-window gnus-article-buffer
- (recenter 0)
- ;;(sit-for 1)
- )
- (error "Search failed: \"%s\"" regexp)
- ))
-
-(defun gnus-summary-search-article-backward (regexp)
- "Search for an article containing REGEXP backward.
-gnus-select-article-hook is not called during the search."
- (interactive
- (list (read-string
- (concat "Search backward (regexp): "
- (if gnus-last-search-regexp
- (concat "(default " gnus-last-search-regexp ") "))))))
- (if (string-equal regexp "")
- (setq regexp (or gnus-last-search-regexp ""))
- (setq gnus-last-search-regexp regexp))
- (if (gnus-summary-search-article regexp t)
- (gnus-eval-in-buffer-window gnus-article-buffer
- (recenter 0)
- ;;(sit-for 1)
- )
- (error "Search failed: \"%s\"" regexp)
- ))
-
-(defun gnus-summary-search-article (regexp &optional backward)
- "Search for an article containing REGEXP.
-Optional argument BACKWARD means do search for backward.
-gnus-select-article-hook is not called during the search."
- (let ((gnus-select-article-hook nil) ;Disable hook.
- (gnus-mark-article-hook nil) ;Inhibit marking as read.
- (re-search
- (if backward
- (function re-search-backward) (function re-search-forward)))
- (found nil)
- (last nil))
- ;; Hidden thread subtrees must be searched for ,too.
- (gnus-summary-show-all-threads)
- ;; First of all, search current article.
- ;; We don't want to read article again from NNTP server nor reset
- ;; current point.
- (gnus-summary-select-article)
- (message "Searching article: %d..." gnus-current-article)
- (setq last gnus-current-article)
- (gnus-eval-in-buffer-window gnus-article-buffer
- (save-restriction
- (widen)
- ;; Begin search from current point.
- (setq found (funcall re-search regexp nil t))))
- ;; Then search next articles.
- (while (and (not found)
- (gnus-summary-display-article
- (gnus-summary-search-subject backward nil nil)))
- (message "Searching article: %d..." gnus-current-article)
- (gnus-eval-in-buffer-window gnus-article-buffer
- (save-restriction
- (widen)
- (goto-char (if backward (point-max) (point-min)))
- (setq found (funcall re-search regexp nil t)))
- ))
- (message "")
- ;; Adjust article pointer.
- (or (eq last gnus-current-article)
- (setq gnus-last-article last))
- ;; Return T if found such article.
- found
- ))
-
-(defun gnus-summary-execute-command (field regexp command &optional backward)
- "If FIELD of article header matches REGEXP, execute a COMMAND string.
-If FIELD is an empty string (or nil), entire article body is searched for.
-If optional (prefix) argument BACKWARD is non-nil, do backward instead."
- (interactive
- (list (let ((completion-ignore-case t))
- (completing-read "Field name: "
- '(("Number")("Subject")("From")
- ("Lines")("Date")("Id")
- ("Xref")("References"))
- nil 'require-match))
- (read-string "Regexp: ")
- (read-key-sequence "Command: ")
- current-prefix-arg))
- ;; Hidden thread subtrees must be searched for ,too.
- (gnus-summary-show-all-threads)
- ;; We don't want to change current point nor window configuration.
- (save-excursion
- (save-window-excursion
- (message "Executing %s..." (key-description command))
- ;; We'd like to execute COMMAND interactively so as to give arguments.
- (gnus-execute field regexp
- (` (lambda ()
- (call-interactively '(, (key-binding command)))))
- backward)
- (message "Executing %s... done" (key-description command)))))
-
-(defun gnus-summary-beginning-of-article ()
- "Go to beginning of article body"
- (interactive)
- (gnus-summary-select-article)
- (gnus-eval-in-buffer-window gnus-article-buffer
- (widen)
- (beginning-of-buffer)
- (if gnus-break-pages
- (gnus-narrow-to-page))
- ))
-
-(defun gnus-summary-end-of-article ()
- "Go to end of article body"
- (interactive)
- (gnus-summary-select-article)
- (gnus-eval-in-buffer-window gnus-article-buffer
- (widen)
- (end-of-buffer)
- (if gnus-break-pages
- (gnus-narrow-to-page))
- ))
-
-(defun gnus-summary-goto-article (article &optional all-headers)
- "Read ARTICLE if exists.
-Optional argument ALL-HEADERS means all headers are shown."
- (interactive
- (list
- (string-to-int
- (completing-read "Article number: "
- (mapcar
- (function
- (lambda (headers)
- (list
- (int-to-string (nntp-header-number headers)))))
- gnus-newsgroup-headers)
- nil 'require-match))))
- (if (gnus-summary-goto-subject article)
- (gnus-summary-display-article article all-headers)))
-
-(defun gnus-summary-goto-last-article ()
- "Go to last subject line."
- (interactive)
- (if gnus-last-article
- (gnus-summary-goto-article gnus-last-article)))
-
-(defun gnus-summary-show-article ()
- "Force to show current article."
- (interactive)
- ;; The following is a trick to force to read the current article again.
- (setq gnus-have-all-headers (not gnus-have-all-headers))
- (gnus-summary-select-article (not gnus-have-all-headers) t))
-
-(defun gnus-summary-toggle-header (arg)
- "Show original header if pruned header currently shown, or vice versa.
-With arg, show original header iff arg is positive."
- (interactive "P")
- ;; Variable gnus-show-all-headers must be NIL to toggle really.
- (let ((gnus-show-all-headers nil)
- (all-headers
- (if (null arg) (not gnus-have-all-headers)
- (> (prefix-numeric-value arg) 0))))
- (gnus-summary-select-article all-headers t)))
-
-(defun gnus-summary-show-all-headers ()
- "Show original article header."
- (interactive)
- (gnus-summary-select-article t t))
-
-(defun gnus-summary-toggle-mime (arg)
- "Toggle MIME processing.
-With arg, turn MIME processing on iff arg is positive."
- (interactive "P")
- (setq gnus-show-mime
- (if (null arg) (not gnus-show-mime)
- (> (prefix-numeric-value arg) 0)))
- ;; The following is a trick to force to read the current article again.
- (setq gnus-have-all-headers (not gnus-have-all-headers))
- (gnus-summary-select-article (not gnus-have-all-headers) t))
-
-(defun gnus-summary-stop-page-breaking ()
- "Stop page breaking by linefeed temporary (Widen article buffer)."
- (interactive)
- (gnus-summary-select-article)
- (gnus-eval-in-buffer-window gnus-article-buffer
- (widen)
- ))
-
-(defun gnus-summary-kill-same-subject-and-select (unmark)
- "Mark articles which has the same subject as read, and then select next.
-If argument UNMARK is positive, remove any kinds of marks.
-If argument UNMARK is negative, mark articles as unread instead."
- (interactive "P")
- (if unmark
- (setq unmark (prefix-numeric-value unmark)))
- (let ((count
- (gnus-summary-mark-same-subject
- (gnus-summary-subject-string) unmark)))
- ;; Select next unread article. If auto-select-same mode, should
- ;; select the first unread article.
- (gnus-summary-next-article t (and gnus-auto-select-same
- (gnus-summary-subject-string)))
- (message "%d articles are marked as %s"
- count (if unmark "unread" "read"))
- ))
-
-(defun gnus-summary-kill-same-subject (unmark)
- "Mark articles which has the same subject as read.
-If argument UNMARK is positive, remove any kinds of marks.
-If argument UNMARK is negative, mark articles as unread instead."
- (interactive "P")
- (if unmark
- (setq unmark (prefix-numeric-value unmark)))
- (let ((count
- (gnus-summary-mark-same-subject
- (gnus-summary-subject-string) unmark)))
- ;; If marked as read, go to next unread subject.
- (if (null unmark)
- ;; Go to next unread subject.
- (gnus-summary-next-subject 1 t))
- (message "%d articles are marked as %s"
- count (if unmark "unread" "read"))
- ))
-
-(defun gnus-summary-mark-same-subject (subject &optional unmark)
- "Mark articles with same SUBJECT as read, and return marked number.
-If optional argument UNMARK is positive, remove any kinds of marks.
-If optional argument UNMARK is negative, mark articles as unread instead."
- (let ((count 1))
- (save-excursion
- (cond ((null unmark)
- (gnus-summary-mark-as-read nil "K"))
- ((> unmark 0)
- (gnus-summary-mark-as-unread nil t))
- (t
- (gnus-summary-mark-as-unread)))
- (while (and subject
- (gnus-summary-search-forward nil subject))
- (cond ((null unmark)
- (gnus-summary-mark-as-read nil "K"))
- ((> unmark 0)
- (gnus-summary-mark-as-unread nil t))
- (t
- (gnus-summary-mark-as-unread)))
- (setq count (1+ count))
- ))
- ;; Hide killed thread subtrees. Does not work properly always.
- ;;(and (null unmark)
- ;; gnus-thread-hide-killed
- ;; (gnus-summary-hide-thread))
- ;; Return number of articles marked as read.
- count
- ))
-
-(defun gnus-summary-mark-as-unread-forward (count)
- "Mark current article as unread, and then go forward.
-Argument COUNT specifies number of articles marked as unread."
- (interactive "p")
- (while (> count 0)
- (gnus-summary-mark-as-unread nil nil)
- (gnus-summary-next-subject 1 nil)
- (setq count (1- count))))
-
-(defun gnus-summary-mark-as-unread-backward (count)
- "Mark current article as unread, and then go backward.
-Argument COUNT specifies number of articles marked as unread."
- (interactive "p")
- (while (> count 0)
- (gnus-summary-mark-as-unread nil nil)
- (gnus-summary-prev-subject 1 nil)
- (setq count (1- count))))
-
-(defun gnus-summary-mark-as-unread (&optional article clear-mark)
- "Mark current article as unread.
-Optional 1st argument ARTICLE specifies article number to be marked as unread.
-Optional 2nd argument CLEAR-MARK remove any kinds of mark."
- (save-excursion
- (set-buffer gnus-summary-buffer)
- ;; First of all, show hidden thread subtrees.
- (gnus-summary-show-thread)
- (let* ((buffer-read-only nil)
- (current (gnus-summary-article-number))
- (article (or article current)))
- (gnus-mark-article-as-unread article clear-mark)
- (if (or (eq article current)
- (gnus-summary-goto-subject article))
- (progn
- (beginning-of-line)
- (delete-char 1)
- (insert (if clear-mark " " "-"))))
- )))
-
-(defun gnus-summary-mark-as-read-forward (count)
- "Mark current article as read, and then go forward.
-Argument COUNT specifies number of articles marked as read"
- (interactive "p")
- (while (> count 0)
- (gnus-summary-mark-as-read)
- (gnus-summary-next-subject 1 'unread-only)
- (setq count (1- count))))
-
-(defun gnus-summary-mark-as-read-backward (count)
- "Mark current article as read, and then go backward.
-Argument COUNT specifies number of articles marked as read"
- (interactive "p")
- (while (> count 0)
- (gnus-summary-mark-as-read)
- (gnus-summary-prev-subject 1 'unread-only)
- (setq count (1- count))))
-
-(defun gnus-summary-mark-as-read (&optional article mark)
- "Mark current article as read.
-Optional 1st argument ARTICLE specifies article number to be marked as read.
-Optional 2nd argument MARK specifies a string inserted at beginning of line.
-Any kind of string (length 1) except for a space and `-' is ok."
- (save-excursion
- (set-buffer gnus-summary-buffer)
- ;; First of all, show hidden thread subtrees.
- (gnus-summary-show-thread)
- (let* ((buffer-read-only nil)
- (mark (or mark "D")) ;Default mark is `D'.
- (current (gnus-summary-article-number))
- (article (or article current)))
- (gnus-mark-article-as-read article)
- (if (or (eq article current)
- (gnus-summary-goto-subject article))
- (progn
- (beginning-of-line)
- (delete-char 1)
- (insert mark)))
- )))
-
-(defun gnus-summary-clear-mark-forward (count)
- "Remove current article's mark, and go forward.
-Argument COUNT specifies number of articles unmarked"
- (interactive "p")
- (while (> count 0)
- (gnus-summary-mark-as-unread nil t)
- (gnus-summary-next-subject 1 nil)
- (setq count (1- count))))
-
-(defun gnus-summary-clear-mark-backward (count)
- "Remove current article's mark, and go backward.
-Argument COUNT specifies number of articles unmarked"
- (interactive "p")
- (while (> count 0)
- (gnus-summary-mark-as-unread nil t)
- (gnus-summary-prev-subject 1 nil)
- (setq count (1- count))))
-
-(defun gnus-summary-delete-marked-as-read ()
- "Delete lines which is marked as read."
- (interactive)
- (if gnus-newsgroup-unreads
- (let ((buffer-read-only nil))
- (save-excursion
- (goto-char (point-min))
- (delete-non-matching-lines "^[ ---]"))
- ;; Adjust point.
- (if (eobp)
- (gnus-summary-prev-subject 1)
- (beginning-of-line)
- (search-forward ":" nil t)))
- ;; It is not so good idea to make the buffer empty.
- (message "All articles are marked as read")
- ))
-
-(defun gnus-summary-delete-marked-with (marks)
- "Delete lines which are marked with MARKS (e.g. \"DK\")."
- (interactive "sMarks: ")
- (let ((buffer-read-only nil))
- (save-excursion
- (goto-char (point-min))
- (delete-matching-lines (concat "^[" marks "]")))
- ;; Adjust point.
- (or (zerop (buffer-size))
- (if (eobp)
- (gnus-summary-prev-subject 1)
- (beginning-of-line)
- (search-forward ":" nil t)))
- ))
-
-;; Thread-based commands.
-
-(defun gnus-summary-toggle-threads (arg)
- "Toggle showing conversation threads.
-With arg, turn showing conversation threads on iff arg is positive."
- (interactive "P")
- (let ((current (gnus-summary-article-number)))
- (setq gnus-show-threads
- (if (null arg) (not gnus-show-threads)
- (> (prefix-numeric-value arg) 0)))
- (gnus-summary-prepare)
- (gnus-summary-goto-subject current)
- ))
-
-(defun gnus-summary-show-all-threads ()
- "Show all thread subtrees."
- (interactive)
- (if gnus-show-threads
- (save-excursion
- (let ((buffer-read-only nil))
- (subst-char-in-region (point-min) (point-max) ?\^M ?\n t)
- ))))
-
-(defun gnus-summary-show-thread ()
- "Show thread subtrees."
- (interactive)
- (if gnus-show-threads
- (save-excursion
- (let ((buffer-read-only nil))
- (subst-char-in-region (progn
- (beginning-of-line) (point))
- (progn
- (end-of-line) (point))
- ?\^M ?\n t)
- ))))
-
-(defun gnus-summary-hide-all-threads ()
- "Hide all thread subtrees."
- (interactive)
- (if gnus-show-threads
- (save-excursion
- ;; Adjust cursor point.
- (goto-char (point-min))
- (search-forward ":" nil t)
- (let ((level (current-column)))
- (gnus-summary-hide-thread)
- (while (gnus-summary-search-forward)
- (and (>= level (current-column))
- (gnus-summary-hide-thread)))
- ))))
-
-(defun gnus-summary-hide-thread ()
- "Hide thread subtrees."
- (interactive)
- (if gnus-show-threads
- (save-excursion
- ;; Adjust cursor point.
- (beginning-of-line)
- (search-forward ":" nil t)
- (let ((buffer-read-only nil)
- (init (point))
- (last (point))
- (level (current-column)))
- (while (and (gnus-summary-search-forward)
- (< level (current-column)))
- ;; Interested in lower levels.
- (if (< level (current-column))
- (progn
- (setq last (point))
- ))
- )
- (subst-char-in-region init last ?\n ?\^M t)
- ))))
-
-(defun gnus-summary-next-thread (n)
- "Go to the same level next thread.
-Argument N specifies the number of threads."
- (interactive "p")
- ;; Adjust cursor point.
- (beginning-of-line)
- (search-forward ":" nil t)
- (let ((init (point))
- (last (point))
- (level (current-column)))
- (while (and (> n 0)
- (gnus-summary-search-forward)
- (<= level (current-column)))
- ;; We have to skip lower levels.
- (if (= level (current-column))
- (progn
- (setq last (point))
- (setq n (1- n))
- ))
- )
- ;; Return non-nil if successfully move to the next.
- (prog1 (not (= init last))
- (goto-char last))
- ))
-
-(defun gnus-summary-prev-thread (n)
- "Go to the same level previous thread.
-Argument N specifies the number of threads."
- (interactive "p")
- ;; Adjust cursor point.
- (beginning-of-line)
- (search-forward ":" nil t)
- (let ((init (point))
- (last (point))
- (level (current-column)))
- (while (and (> n 0)
- (gnus-summary-search-backward)
- (<= level (current-column)))
- ;; We have to skip lower levels.
- (if (= level (current-column))
- (progn
- (setq last (point))
- (setq n (1- n))
- ))
- )
- ;; Return non-nil if successfully move to the previous.
- (prog1 (not (= init last))
- (goto-char last))
- ))
-
-(defun gnus-summary-down-thread (d)
- "Go downward current thread.
-Argument D specifies the depth goes down."
- (interactive "p")
- ;; Adjust cursor point.
- (beginning-of-line)
- (search-forward ":" nil t)
- (let ((last (point))
- (level (current-column)))
- (while (and (> d 0)
- (gnus-summary-search-forward)
- (<= level (current-column))) ;<= can be <. Which do you like?
- ;; We have to skip the same levels.
- (if (< level (current-column))
- (progn
- (setq last (point))
- (setq level (current-column))
- (setq d (1- d))
- ))
- )
- (goto-char last)
- ))
-
-(defun gnus-summary-up-thread (d)
- "Go upward current thread.
-Argument D specifies the depth goes up."
- (interactive "p")
- ;; Adjust cursor point.
- (beginning-of-line)
- (search-forward ":" nil t)
- (let ((last (point))
- (level (current-column)))
- (while (and (> d 0)
- (gnus-summary-search-backward))
- ;; We have to skip the same levels.
- (if (> level (current-column))
- (progn
- (setq last (point))
- (setq level (current-column))
- (setq d (1- d))
- ))
- )
- (goto-char last)
- ))
-
-(defun gnus-summary-kill-thread (unmark)
- "Mark articles under current thread as read.
-If argument UNMARK is positive, remove any kinds of marks.
-If argument UNMARK is negative, mark articles as unread instead."
- (interactive "P")
- (if unmark
- (setq unmark (prefix-numeric-value unmark)))
- ;; Adjust cursor point.
- (beginning-of-line)
- (search-forward ":" nil t)
- (save-excursion
- (let ((level (current-column)))
- ;; Mark current article.
- (cond ((null unmark)
- (gnus-summary-mark-as-read nil "K"))
- ((> unmark 0)
- (gnus-summary-mark-as-unread nil t))
- (t
- (gnus-summary-mark-as-unread))
- )
- ;; Mark following articles.
- (while (and (gnus-summary-search-forward)
- (< level (current-column)))
- (cond ((null unmark)
- (gnus-summary-mark-as-read nil "K"))
- ((> unmark 0)
- (gnus-summary-mark-as-unread nil t))
- (t
- (gnus-summary-mark-as-unread))
- ))
- ))
- ;; Hide killed subtrees.
- (and (null unmark)
- gnus-thread-hide-killed
- (gnus-summary-hide-thread))
- ;; If marked as read, go to next unread subject.
- (if (null unmark)
- ;; Go to next unread subject.
- (gnus-summary-next-subject 1 t))
- )
-
-(defun gnus-summary-toggle-truncation (arg)
- "Toggle truncation of summary lines.
-With arg, turn line truncation on iff arg is positive."
- (interactive "P")
- (setq truncate-lines
- (if (null arg) (not truncate-lines)
- (> (prefix-numeric-value arg) 0)))
- (redraw-display))
-
-(defun gnus-summary-sort-by-number (reverse)
- "Sort Summary buffer by article number.
-Argument REVERSE means reverse order."
- (interactive "P")
- (gnus-summary-keysort-summary
- (function <)
- (function
- (lambda (a)
- (nntp-header-number a)))
- reverse
- ))
-
-(defun gnus-summary-sort-by-author (reverse)
- "Sort Summary buffer by author name alphabetically.
-If case-fold-search is non-nil, case of letters is ignored.
-Argument REVERSE means reverse order."
- (interactive "P")
- (gnus-summary-keysort-summary
- (function string-lessp)
- (function
- (lambda (a)
- (if case-fold-search
- (downcase (nntp-header-from a))
- (nntp-header-from a))))
- reverse
- ))
-
-(defun gnus-summary-sort-by-subject (reverse)
- "Sort Summary buffer by subject alphabetically. `Re:'s are ignored.
-If case-fold-search is non-nil, case of letters is ignored.
-Argument REVERSE means reverse order."
- (interactive "P")
- (gnus-summary-keysort-summary
- (function string-lessp)
- (function
- (lambda (a)
- (if case-fold-search
- (downcase (gnus-simplify-subject (nntp-header-subject a) 're-only))
- (gnus-simplify-subject (nntp-header-subject a) 're-only))))
- reverse
- ))
-
-(defun gnus-summary-sort-by-date (reverse)
- "Sort Summary buffer by date.
-Argument REVERSE means reverse order."
- (interactive "P")
- (gnus-summary-keysort-summary
- (function string-lessp)
- (function
- (lambda (a)
- (gnus-sortable-date (nntp-header-date a))))
- reverse
- ))
-
-(defun gnus-summary-keysort-summary (predicate key &optional reverse)
- "Sort Summary buffer by PREDICATE using a value passed by KEY.
-Optional argument REVERSE means reverse order."
- (let ((current (gnus-summary-article-number)))
- (gnus-keysort-headers predicate key reverse)
- (gnus-summary-prepare)
- (gnus-summary-goto-subject current)
- ))
-
-(defun gnus-summary-sort-summary (predicate &optional reverse)
- "Sort Summary buffer by PREDICATE.
-Optional argument REVERSE means reverse order."
- (let ((current (gnus-summary-article-number)))
- (gnus-sort-headers predicate reverse)
- (gnus-summary-prepare)
- (gnus-summary-goto-subject current)
- ))
-
-(defun gnus-summary-reselect-current-group (show-all)
- "Once exit and then reselect the current newsgroup.
-Prefix argument SHOW-ALL means to select all articles."
- (interactive "P")
- (let ((current-subject (gnus-summary-article-number)))
- (gnus-summary-exit t)
- ;; We have to adjust the point of Group mode buffer because the
- ;; current point was moved to the next unread newsgroup by
- ;; exiting.
- (gnus-summary-jump-to-group gnus-newsgroup-name)
- (gnus-group-read-group show-all t)
- (gnus-summary-goto-subject current-subject)
- ))
-
-(defun gnus-summary-caesar-message (rotnum)
- "Caesar rotates all letters of current message by 13/47 places.
-With prefix arg, specifies the number of places to rotate each letter forward.
-Caesar rotates Japanese letters by 47 places in any case."
- (interactive "P")
- (gnus-summary-select-article)
- (gnus-overload-functions)
- (gnus-eval-in-buffer-window gnus-article-buffer
- (save-restriction
- (widen)
- ;; We don't want to jump to the beginning of the message.
- ;; `save-excursion' does not do its job.
- (move-to-window-line 0)
- (let ((last (point)))
- (news-caesar-buffer-body rotnum)
- (goto-char last)
- (recenter 0)
- ))
- ))
-
-(defun gnus-summary-rmail-digest ()
- "Run RMAIL on current digest article.
-gnus-select-digest-hook will be called with no arguments, if that
-value is non-nil. It is possible to modify the article so that Rmail
-can work with it.
-gnus-rmail-digest-hook will be called with no arguments, if that value
-is non-nil. The hook is intended to customize Rmail mode."
- (interactive)
- (gnus-summary-select-article)
- (require 'rmail)
- (let ((artbuf gnus-article-buffer)
- (digbuf (get-buffer-create gnus-digest-buffer))
- (mail-header-separator ""))
- (set-buffer digbuf)
- (buffer-flush-undo (current-buffer))
- (setq buffer-read-only nil)
- (erase-buffer)
- (insert-buffer-substring artbuf)
- (run-hooks 'gnus-select-digest-hook)
- (gnus-convert-article-to-rmail)
- (goto-char (point-min))
- ;; Rmail initializations.
- (rmail-insert-rmail-file-header)
- (rmail-mode)
- (rmail-set-message-counters)
- (rmail-show-message)
- (condition-case ()
- (progn
- (undigestify-rmail-message)
- (rmail-expunge) ;Delete original message.
- ;; File name is meaningless but `save-buffer' requires it.
- (setq buffer-file-name "GNUS Digest")
- (setq mode-line-buffer-identification
- (concat "Digest: "
- (nntp-header-subject gnus-current-headers)))
- ;; There is no need to write this buffer to a file.
- (make-local-variable 'write-file-hooks)
- (setq write-file-hooks
- (list (function
- (lambda ()
- (set-buffer-modified-p nil)
- (message "(No changes need to be saved)")
- 'no-need-to-write-this-buffer))))
- ;; Default file name saving digest messages.
- (setq rmail-last-rmail-file
- (funcall gnus-rmail-save-name
- gnus-newsgroup-name
- gnus-current-headers
- gnus-newsgroup-last-rmail
- ))
- (setq rmail-last-file
- (funcall gnus-mail-save-name
- gnus-newsgroup-name
- gnus-current-headers
- gnus-newsgroup-last-mail
- ))
- ;; Prevent generating new buffer named ***<N> each time.
- (setq rmail-summary-buffer
- (get-buffer-create gnus-digest-summary-buffer))
- (run-hooks 'gnus-rmail-digest-hook)
- ;; Take all windows safely.
- (gnus-configure-windows '(1 0 0))
- (pop-to-buffer gnus-group-buffer)
- ;; Use Summary Article windows for Digest summary and
- ;; Digest buffers.
- (if gnus-digest-show-summary
- (let ((gnus-summary-buffer gnus-digest-summary-buffer)
- (gnus-article-buffer gnus-digest-buffer))
- (gnus-configure-windows 'article)
- (pop-to-buffer gnus-digest-buffer)
- (rmail-summary)
- (pop-to-buffer gnus-digest-summary-buffer)
- (message (substitute-command-keys
- "Type \\[rmail-summary-quit] to return to GNUS")))
- (let ((gnus-summary-buffer gnus-digest-buffer))
- (gnus-configure-windows 'summary)
- (pop-to-buffer gnus-digest-buffer)
- (message (substitute-command-keys
- "Type \\[rmail-quit] to return to GNUS")))
- )
- ;; Move the buffers to the end of buffer list.
- (bury-buffer gnus-article-buffer)
- (bury-buffer gnus-group-buffer)
- (bury-buffer gnus-digest-summary-buffer)
- (bury-buffer gnus-digest-buffer))
- (error (set-buffer-modified-p nil)
- (kill-buffer digbuf)
- ;; This command should not signal an error because the
- ;; command is called from hooks.
- (ding) (message "Article is not a digest")))
- ))
-
-(defun gnus-summary-save-article ()
- "Save this article using default saver function.
-The variable `gnus-default-article-saver' specifies the saver function."
- (interactive)
- (gnus-summary-select-article gnus-save-all-headers gnus-save-all-headers)
- (if gnus-default-article-saver
- (call-interactively gnus-default-article-saver)
- (error "No default saver is defined.")))
-
-(defun gnus-summary-save-in-rmail (&optional filename)
- "Append this article to Rmail file.
-Optional argument FILENAME specifies file name.
-Directory to save to is default to `gnus-article-save-directory' which
-is initialized from the SAVEDIR environment variable."
- (interactive)
- (gnus-summary-select-article gnus-save-all-headers gnus-save-all-headers)
- (gnus-eval-in-buffer-window gnus-article-buffer
- (save-excursion
- (save-restriction
- (widen)
- (let ((default-name
- (funcall gnus-rmail-save-name
- gnus-newsgroup-name
- gnus-current-headers
- gnus-newsgroup-last-rmail
- )))
- (or filename
- (setq filename
- (read-file-name
- (concat "Save article in Rmail file: (default "
- (file-name-nondirectory default-name)
- ") ")
- (file-name-directory default-name)
- default-name)))
- (gnus-make-directory (file-name-directory filename))
- (gnus-output-to-rmail filename)
- ;; Remember the directory name to save articles.
- (setq gnus-newsgroup-last-rmail filename)
- )))
- ))
-
-(defun gnus-summary-save-in-mail (&optional filename)
- "Append this article to Unix mail file.
-Optional argument FILENAME specifies file name.
-Directory to save to is default to `gnus-article-save-directory' which
-is initialized from the SAVEDIR environment variable."
- (interactive)
- (gnus-summary-select-article gnus-save-all-headers gnus-save-all-headers)
- (gnus-eval-in-buffer-window gnus-article-buffer
- (save-excursion
- (save-restriction
- (widen)
- (let ((default-name
- (funcall gnus-mail-save-name
- gnus-newsgroup-name
- gnus-current-headers
- gnus-newsgroup-last-mail
- )))
- (or filename
- (setq filename
- (read-file-name
- (concat "Save article in Unix mail file: (default "
- (file-name-nondirectory default-name)
- ") ")
- (file-name-directory default-name)
- default-name)))
- (gnus-make-directory (file-name-directory filename))
- (rmail-output filename)
- ;; Remember the directory name to save articles.
- (setq gnus-newsgroup-last-mail filename)
- )))
- ))
-
-(defun gnus-summary-save-in-file (&optional filename)
- "Append this article to file.
-Optional argument FILENAME specifies file name.
-Directory to save to is default to `gnus-article-save-directory' which
-is initialized from the SAVEDIR environment variable."
- (interactive)
- (gnus-summary-select-article gnus-save-all-headers gnus-save-all-headers)
- (gnus-eval-in-buffer-window gnus-article-buffer
- (save-excursion
- (save-restriction
- (widen)
- (let ((default-name
- (funcall gnus-file-save-name
- gnus-newsgroup-name
- gnus-current-headers
- gnus-newsgroup-last-file
- )))
- (or filename
- (setq filename
- (read-file-name
- (concat "Save article in file: (default "
- (file-name-nondirectory default-name)
- ") ")
- (file-name-directory default-name)
- default-name)))
- (gnus-make-directory (file-name-directory filename))
- (gnus-output-to-file filename)
- ;; Remember the directory name to save articles.
- (setq gnus-newsgroup-last-file filename)
- )))
- ))
-
-(defun gnus-summary-save-in-folder (&optional folder)
- "Save this article to MH folder (using `rcvstore' in MH library).
-Optional argument FOLDER specifies folder name."
- (interactive)
- (gnus-summary-select-article gnus-save-all-headers gnus-save-all-headers)
- (gnus-eval-in-buffer-window gnus-article-buffer
- (save-restriction
- (widen)
- ;; Thanks to yuki@flab.Fujitsu.JUNET and ohm@kaba.junet.
- (mh-find-path)
- (let ((folder
- (or folder
- (mh-prompt-for-folder "Save article in"
- (funcall gnus-folder-save-name
- gnus-newsgroup-name
- gnus-current-headers
- gnus-newsgroup-last-folder
- )
- t
- )))
- (errbuf (get-buffer-create " *GNUS rcvstore*")))
- (unwind-protect
- (call-process-region (point-min) (point-max)
- (expand-file-name "rcvstore" mh-lib)
- nil errbuf nil folder)
- (set-buffer errbuf)
- (if (zerop (buffer-size))
- (message "Article saved in folder: %s" folder)
- (message "%s" (buffer-string)))
- (kill-buffer errbuf)
- (setq gnus-newsgroup-last-folder folder))
- ))
- ))
-
-(defun gnus-summary-pipe-output ()
- "Pipe this article to subprocess."
- (interactive)
- ;; Ignore `gnus-save-all-headers' since this is not save command.
- ;;(gnus-summary-select-article)
- ;; Huuum. Is this right?
- (gnus-summary-select-article gnus-save-all-headers gnus-save-all-headers)
- (gnus-eval-in-buffer-window gnus-article-buffer
- (save-restriction
- (widen)
- (let ((command (read-string "Shell command on article: "
- gnus-last-shell-command)))
- (if (string-equal command "")
- (setq command gnus-last-shell-command))
- (shell-command-on-region (point-min) (point-max) command nil)
- (setq gnus-last-shell-command command)
- ))
- ))
-
-(defun gnus-summary-catchup (all &optional quietly)
- "Mark all articles not marked as unread in this newsgroup as read.
-If prefix argument ALL is non-nil, all articles are marked as read."
- (interactive "P")
- (if (or quietly
- (y-or-n-p
- (if all
- "Do you really want to mark everything as read? "
- "Delete all articles not marked as unread? ")))
- (let ((unmarked
- (gnus-set-difference gnus-newsgroup-unreads
- (if (not all) gnus-newsgroup-marked))))
- (message "") ;Erase "Yes or No" question.
- ;; Hidden thread subtrees must be searched for ,too.
- (gnus-summary-show-all-threads)
- (while unmarked
- (gnus-summary-mark-as-read (car unmarked) "C")
- (setq unmarked (cdr unmarked))
- ))
- ))
-
-(defun gnus-summary-catchup-all (&optional quietly)
- "Mark all articles in this newsgroup as read."
- (interactive)
- (gnus-summary-catchup t quietly))
-
-(defun gnus-summary-catchup-and-exit (all &optional quietly)
- "Mark all articles not marked as unread in this newsgroup as read, then exit.
-If prefix argument ALL is non-nil, all articles are marked as read."
- (interactive "P")
- (if (or quietly
- (y-or-n-p
- (if all
- "Do you really want to mark everything as read? "
- "Delete all articles not marked as unread? ")))
- (let ((unmarked
- (gnus-set-difference gnus-newsgroup-unreads
- (if (not all) gnus-newsgroup-marked))))
- (message "") ;Erase "Yes or No" question.
- (while unmarked
- (gnus-mark-article-as-read (car unmarked))
- (setq unmarked (cdr unmarked)))
- ;; Select next newsgroup or exit.
- (cond ((eq gnus-auto-select-next 'quietly)
- ;; Select next newsgroup quietly.
- (gnus-summary-next-group nil))
- (t
- (gnus-summary-exit)))
- )))
-
-(defun gnus-summary-catchup-all-and-exit (&optional quietly)
- "Mark all articles in this newsgroup as read, and then exit."
- (interactive)
- (gnus-summary-catchup-and-exit t quietly))
-
-(defun gnus-summary-edit-global-kill ()
- "Edit a global KILL file."
- (interactive)
- (setq gnus-current-kill-article (gnus-summary-article-number))
- (gnus-kill-file-edit-file nil) ;Nil stands for global KILL file.
- (message
- (substitute-command-keys
- "Editing a global KILL file (Type \\[gnus-kill-file-exit] to exit)")))
-
-(defun gnus-summary-edit-local-kill ()
- "Edit a local KILL file applied to the current newsgroup."
- (interactive)
- (setq gnus-current-kill-article (gnus-summary-article-number))
- (gnus-kill-file-edit-file gnus-newsgroup-name)
- (message
- (substitute-command-keys
- "Editing a local KILL file (Type \\[gnus-kill-file-exit] to exit)")))
-
-(defun gnus-summary-exit (&optional temporary)
- "Exit reading current newsgroup, and then return to group selection mode.
-gnus-exit-group-hook is called with no arguments if that value is non-nil."
- (interactive)
- (let ((updated nil)
- (gnus-newsgroup-headers gnus-newsgroup-headers)
- (gnus-newsgroup-unreads gnus-newsgroup-unreads)
- (gnus-newsgroup-unselected gnus-newsgroup-unselected)
- (gnus-newsgroup-marked gnus-newsgroup-marked))
- ;; Important internal variables are saved, so we can reenter
- ;; Summary buffer even if hook changes them.
- (run-hooks 'gnus-exit-group-hook)
- (gnus-update-unread-articles gnus-newsgroup-name
- (append gnus-newsgroup-unselected
- gnus-newsgroup-unreads)
- gnus-newsgroup-marked)
- ;; T means ignore unsubscribed newsgroups.
- (if gnus-use-cross-reference
- (setq updated
- (gnus-mark-as-read-by-xref gnus-newsgroup-name
- gnus-newsgroup-headers
- gnus-newsgroup-unreads
- (eq gnus-use-cross-reference t)
- )))
- ;; Do not switch windows but change the buffer to work.
- (set-buffer gnus-group-buffer)
- ;; Update cross referenced group info.
- (while updated
- (gnus-group-update-group (car updated) t) ;Ignore invisible group.
- (setq updated (cdr updated)))
- (gnus-group-update-group gnus-newsgroup-name))
- ;; Make sure where I was, and go to next newsgroup.
- (gnus-group-jump-to-group gnus-newsgroup-name)
- (gnus-group-next-unread-group 1)
- (if temporary
- ;; If exiting temporary, caller should adjust Group mode
- ;; buffer point by itself.
- nil ;Nothing to do.
- ;; Return to Group mode buffer.
- (if (get-buffer gnus-summary-buffer)
- (bury-buffer gnus-summary-buffer))
- (if (get-buffer gnus-article-buffer)
- (bury-buffer gnus-article-buffer))
- (gnus-configure-windows 'newsgroups)
- (pop-to-buffer gnus-group-buffer)))
-
-(defun gnus-summary-quit ()
- "Quit reading current newsgroup without updating read article info."
- (interactive)
- (if (y-or-n-p "Do you really wanna quit reading this group? ")
- (progn
- (message "") ;Erase "Yes or No" question.
- ;; Return to Group selection mode.
- (if (get-buffer gnus-summary-buffer)
- (bury-buffer gnus-summary-buffer))
- (if (get-buffer gnus-article-buffer)
- (bury-buffer gnus-article-buffer))
- (gnus-configure-windows 'newsgroups)
- (pop-to-buffer gnus-group-buffer)
- (gnus-group-jump-to-group gnus-newsgroup-name) ;Make sure where I was.
- (gnus-group-next-group 1) ;(gnus-group-next-unread-group 1)
- )))
-
-(defun gnus-summary-describe-briefly ()
- "Describe Summary mode commands briefly."
- (interactive)
- (message
- (concat
- (substitute-command-keys "\\[gnus-summary-next-page]:Select ")
- (substitute-command-keys "\\[gnus-summary-next-unread-article]:Forward ")
- (substitute-command-keys "\\[gnus-summary-prev-unread-article]:Backward ")
- (substitute-command-keys "\\[gnus-summary-exit]:Exit ")
- (substitute-command-keys "\\[gnus-info-find-node]:Run Info ")
- (substitute-command-keys "\\[gnus-summary-describe-briefly]:This help")
- )))
-
-\f
-;;;
-;;; GNUS Article Mode
-;;;
-
-(if gnus-article-mode-map
- nil
- (setq gnus-article-mode-map (make-keymap))
- (suppress-keymap gnus-article-mode-map)
- (define-key gnus-article-mode-map " " 'gnus-article-next-page)
- (define-key gnus-article-mode-map "\177" 'gnus-article-prev-page)
- (define-key gnus-article-mode-map "r" 'gnus-article-refer-article)
- (define-key gnus-article-mode-map "o" 'gnus-article-pop-article)
- (define-key gnus-article-mode-map "h" 'gnus-article-show-summary)
- (define-key gnus-article-mode-map "s" 'gnus-article-show-summary)
- (define-key gnus-article-mode-map "?" 'gnus-article-describe-briefly)
- (define-key gnus-article-mode-map "\C-c\C-i" 'gnus-info-find-node))
-
-(defun gnus-article-mode ()
- "Major mode for browsing through an article.
-All normal editing commands are turned off.
-Instead, these commands are available:
-\\{gnus-article-mode-map}
-
-Various hooks for customization:
- gnus-article-mode-hook
- Entry to this mode calls the value with no arguments, if that
- value is non-nil.
-
- gnus-article-prepare-hook
- Called with no arguments after an article is prepared for reading,
- if that value is non-nil."
- (interactive)
- (kill-all-local-variables)
- ;; Gee. Why don't you upgrade?
- (cond ((boundp 'mode-line-modified)
- (setq mode-line-modified "--- "))
- ((listp (default-value 'mode-line-format))
- (setq mode-line-format
- (cons "--- " (cdr (default-value 'mode-line-format))))))
- ;; To disable display-time facility.
- ;;(make-local-variable 'global-mode-string)
- ;;(setq global-mode-string nil)
- (setq major-mode 'gnus-article-mode)
- (setq mode-name "Article")
- (make-local-variable 'minor-mode-alist)
- (or (assq 'gnus-show-mime minor-mode-alist)
- (setq minor-mode-alist
- (cons (list 'gnus-show-mime " MIME") minor-mode-alist)))
- (gnus-article-set-mode-line)
- (use-local-map gnus-article-mode-map)
- (make-local-variable 'page-delimiter)
- (setq page-delimiter gnus-page-delimiter)
- (make-local-variable 'mail-header-separator)
- (setq mail-header-separator "") ;For caesar function.
- (buffer-flush-undo (current-buffer))
- (setq buffer-read-only t) ;Disable modification
- (run-hooks 'gnus-article-mode-hook))
-
-(defun gnus-article-setup-buffer ()
- "Initialize Article mode buffer."
- (or (get-buffer gnus-article-buffer)
- (save-excursion
- (set-buffer (get-buffer-create gnus-article-buffer))
- (gnus-article-mode))
- ))
-
-(defun gnus-article-prepare (article &optional all-headers)
- "Prepare ARTICLE in Article mode buffer.
-ARTICLE can be either a article number or Message-ID.
-If optional argument ALL-HEADERS is non-nil, all headers are inserted."
- ;; Make sure a connection to NNTP server is alive.
- (if (not (gnus-server-opened))
- (progn
- (gnus-start-news-server)
- (gnus-request-group gnus-newsgroup-name)))
- (save-excursion
- (set-buffer gnus-article-buffer)
- (let ((buffer-read-only nil))
- (erase-buffer)
- ;; mhspool does not work with Message-ID. So, let's translate
- ;; it into an article number as possible as can. This may help
- ;; nnspool too.
- ;; Note: this conversion must be done here since if the article
- ;; is specified by number or message-id has a different meaning
- ;; in the following.
- (if (let* ((header
- (and (stringp article)
- (gnus-get-header-by-id article)))
- (article
- (if header
- (nntp-header-number header) article)))
- (gnus-request-article article))
- (progn
- ;; Prepare article buffer
- (insert-buffer-substring nntp-server-buffer)
- ;; gnus-have-all-headers must be either T or NIL.
- (setq gnus-have-all-headers
- (not (not (or all-headers gnus-show-all-headers))))
- (if (and (numberp article)
- (not (eq article gnus-current-article)))
- ;; Seems me that a new article has been selected.
- (progn
- ;; gnus-current-article must be an article number.
- (setq gnus-last-article gnus-current-article)
- (setq gnus-current-article article)
-;; (setq gnus-current-headers
-;; (gnus-find-header-by-number gnus-newsgroup-headers
-;; gnus-current-article))
- (setq gnus-current-headers
- (gnus-get-header-by-number gnus-current-article))
- (run-hooks 'gnus-mark-article-hook)
- ))
- ;; Clear article history only when the article is
- ;; retrieved by the article number.
- (if (numberp article)
- (setq gnus-current-history nil))
- ;; Hooks for modifying contents of the article. This hook
- ;; must be called before being narrowed.
- (run-hooks 'gnus-article-prepare-hook)
- ;; Decode MIME message.
- (if (and gnus-show-mime
- (gnus-fetch-field "Mime-Version"))
- (funcall gnus-show-mime-method))
- ;; Delete unnecessary headers.
- (or gnus-have-all-headers
- (gnus-article-delete-headers))
- ;; Do page break.
- (goto-char (point-min))
- (if gnus-break-pages
- (gnus-narrow-to-page))
- ;; Next function must be called after setting
- ;; `gnus-current-article' variable and narrowed to page.
- (gnus-article-set-mode-line)
- )
- ;; There is no such article.
- (if (numberp article)
- (gnus-summary-mark-as-read article))
- (ding) (message "No such article (may be canceled)"))
- )))
-
-(defun gnus-article-show-all-headers ()
- "Show all article headers in Article mode buffer."
- (or gnus-have-all-headers
- (gnus-article-prepare gnus-current-article t)))
-
-;;(defun gnus-article-set-mode-line ()
-;; "Set Article mode line string."
-;; (setq mode-line-buffer-identification
-;; (list 17
-;; (format "GNUS: %s {%d-%d} %d"
-;; gnus-newsgroup-name
-;; gnus-newsgroup-begin
-;; gnus-newsgroup-end
-;; gnus-current-article
-;; )))
-;; (set-buffer-modified-p t))
-
-;;(defun gnus-article-set-mode-line ()
-;; "Set Article mode line string."
-;; (let ((unmarked
-;; (- (length gnus-newsgroup-unreads)
-;; (length (gnus-intersection
-;; gnus-newsgroup-unreads gnus-newsgroup-marked))))
-;; (unselected
-;; (- (length gnus-newsgroup-unselected)
-;; (length (gnus-intersection
-;; gnus-newsgroup-unselected gnus-newsgroup-marked)))))
-;; (setq mode-line-buffer-identification
-;; (list 17
-;; (format "GNUS: %s{%d} %s"
-;; gnus-newsgroup-name
-;; gnus-current-article
-;; ;; This is proposed by tale@pawl.rpi.edu.
-;; (cond ((and (zerop unmarked)
-;; (zerop unselected))
-;; " ")
-;; ((zerop unselected)
-;; (format "%d more" unmarked))
-;; (t
-;; (format "%d(+%d) more" unmarked unselected)))
-;; ))))
-;; (set-buffer-modified-p t))
-
-;; New implementation in gnus 3.14.3
-
-(defun gnus-article-set-mode-line ()
- "Set Article mode line string.
-If you don't like it, define your own gnus-article-set-mode-line."
- (let ((maxlen 15) ;Maximum subject length
- (subject
- (if gnus-current-headers
- (nntp-header-subject gnus-current-headers) "")))
- ;; The value must be a string to escape %-constructs because of subject.
- (setq mode-line-buffer-identification
- (format "GNUS: %s%s %s%s%s"
- gnus-newsgroup-name
- (if gnus-current-article
- (format "/%d" gnus-current-article) "")
- (substring subject 0 (min (length subject) maxlen))
- (if (> (length subject) maxlen) "..." "")
- (make-string (max 0 (- 17 (length subject))) ? )
- )))
- (set-buffer-modified-p t))
-
-(defun gnus-article-delete-headers ()
- "Delete unnecessary headers."
- (save-excursion
- (save-restriction
- (goto-char (point-min))
- (narrow-to-region (point-min)
- (progn (search-forward "\n\n" nil 'move) (point)))
- (goto-char (point-min))
- (and (stringp gnus-ignored-headers)
- (while (re-search-forward gnus-ignored-headers nil t)
- (beginning-of-line)
- (delete-region (point)
- (progn (re-search-forward "\n[^ \t]")
- (forward-char -1)
- (point)))))
- )))
-
-;; Working on article's buffer
-
-(defun gnus-article-next-page (lines)
- "Show next page of current article.
-If end of article, return non-nil. Otherwise return nil.
-Argument LINES specifies lines to be scrolled up."
- (interactive "P")
- (move-to-window-line -1)
- ;; Fixed by enami@ptgd.sony.co.jp (enami tsugutomo)
- (if (save-excursion
- (end-of-line)
- (and (pos-visible-in-window-p) ;Not continuation line.
- (eobp)))
- ;; Nothing in this page.
- (if (or (not gnus-break-pages)
- (save-excursion
- (save-restriction
- (widen) (forward-line 1) (eobp)))) ;Real end-of-buffer?
- t ;Nothing more.
- (gnus-narrow-to-page 1) ;Go to next page.
- nil
- )
- ;; More in this page.
- (condition-case ()
- (scroll-up lines)
- (end-of-buffer
- ;; Long lines may cause an end-of-buffer error.
- (goto-char (point-max))))
- nil
- ))
-
-(defun gnus-article-prev-page (lines)
- "Show previous page of current article.
-Argument LINES specifies lines to be scrolled down."
- (interactive "P")
- (move-to-window-line 0)
- (if (and gnus-break-pages
- (bobp)
- (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
- (progn
- (gnus-narrow-to-page -1) ;Go to previous page.
- (goto-char (point-max))
- (recenter -1))
- (scroll-down lines)))
-
-(defun gnus-article-next-digest (nth)
- "Move to head of NTH next digested message.
-Set mark at end of digested message."
- ;; Stop page breaking in digest mode.
- (widen)
- (end-of-line)
- ;; Skip NTH - 1 digest.
- ;; Suggested by Khalid Sattar <admin@cs.exeter.ac.uk>.
- ;; Digest separator is customizable.
- ;; Suggested by Skip Montanaro <montanaro@sprite.crd.ge.com>.
- (while (and (> nth 1)
- (re-search-forward gnus-digest-separator nil 'move))
- (setq nth (1- nth)))
- (if (re-search-forward gnus-digest-separator nil t)
- (let ((begin (point)))
- ;; Search for end of this message.
- (end-of-line)
- (if (re-search-forward gnus-digest-separator nil t)
- (progn
- (search-backward "\n\n") ;This may be incorrect.
- (forward-line 1))
- (goto-char (point-max)))
- (push-mark) ;Set mark at end of digested message.
- (goto-char begin)
- (beginning-of-line)
- ;; Show From: and Subject: fields.
- (recenter 1))
- (message "End of message")
- ))
-
-(defun gnus-article-prev-digest (nth)
- "Move to head of NTH previous digested message."
- ;; Stop page breaking in digest mode.
- (widen)
- (beginning-of-line)
- ;; Skip NTH - 1 digest.
- ;; Suggested by Khalid Sattar <admin@cs.exeter.ac.uk>.
- ;; Digest separator is customizable.
- ;; Suggested by Skip Montanaro <montanaro@sprite.crd.ge.com>.
- (while (and (> nth 1)
- (re-search-backward gnus-digest-separator nil 'move))
- (setq nth (1- nth)))
- (if (re-search-backward gnus-digest-separator nil t)
- (let ((begin (point)))
- ;; Search for end of this message.
- (end-of-line)
- (if (re-search-forward gnus-digest-separator nil t)
- (progn
- (search-backward "\n\n") ;This may be incorrect.
- (forward-line 1))
- (goto-char (point-max)))
- (push-mark) ;Set mark at end of digested message.
- (goto-char begin)
- ;; Show From: and Subject: fields.
- (recenter 1))
- (goto-char (point-min))
- (message "Top of message")
- ))
-
-(defun gnus-article-refer-article ()
- "Read article specified by message-id around point."
- (interactive)
- (save-window-excursion
- (save-excursion
- (re-search-forward ">" nil t) ;Move point to end of "<....>".
- (if (re-search-backward "\\(<[^<> \t\n]+>\\)" nil t)
- (let ((message-id
- (buffer-substring (match-beginning 1) (match-end 1))))
- (set-buffer gnus-summary-buffer)
- (gnus-summary-refer-article message-id))
- (error "No references around point"))
- )))
-
-(defun gnus-article-pop-article ()
- "Pop up article history."
- (interactive)
- (save-window-excursion
- (set-buffer gnus-summary-buffer)
- (gnus-summary-refer-article nil)))
-
-(defun gnus-article-show-summary ()
- "Reconfigure windows to show Summary buffer."
- (interactive)
- (gnus-configure-windows 'article)
- (pop-to-buffer gnus-summary-buffer)
- (gnus-summary-goto-subject gnus-current-article))
-
-(defun gnus-article-describe-briefly ()
- "Describe Article mode commands briefly."
- (interactive)
- (message
- (concat
- (substitute-command-keys "\\[gnus-article-next-page]:Next page ")
- (substitute-command-keys "\\[gnus-article-prev-page]:Prev page ")
- (substitute-command-keys "\\[gnus-article-show-summary]:Show Summary ")
- (substitute-command-keys "\\[gnus-info-find-node]:Run Info ")
- (substitute-command-keys "\\[gnus-article-describe-briefly]:This help")
- )))
-
-\f
-;;;
-;;; GNUS KILL-File Mode
-;;;
-
-(if gnus-kill-file-mode-map
- nil
- (setq gnus-kill-file-mode-map (copy-keymap emacs-lisp-mode-map))
- (define-key gnus-kill-file-mode-map "\C-c\C-k\C-s" 'gnus-kill-file-kill-by-subject)
- (define-key gnus-kill-file-mode-map "\C-c\C-k\C-a" 'gnus-kill-file-kill-by-author)
- (define-key gnus-kill-file-mode-map "\C-c\C-a" 'gnus-kill-file-apply-buffer)
- (define-key gnus-kill-file-mode-map "\C-c\C-e" 'gnus-kill-file-apply-last-sexp)
- (define-key gnus-kill-file-mode-map "\C-c\C-c" 'gnus-kill-file-exit)
- (define-key gnus-kill-file-mode-map "\C-c\C-i" 'gnus-info-find-node))
-
-(defun gnus-kill-file-mode ()
- "Major mode for editing KILL file.
-
-In addition to Emacs-Lisp Mode, the following commands are available:
-
-\\[gnus-kill-file-kill-by-subject] Insert KILL command for current subject.
-\\[gnus-kill-file-kill-by-author] Insert KILL command for current author.
-\\[gnus-kill-file-apply-buffer] Apply current buffer to selected newsgroup.
-\\[gnus-kill-file-apply-last-sexp] Apply sexp before point to selected newsgroup.
-\\[gnus-kill-file-exit] Save file and exit editing KILL file.
-\\[gnus-info-find-node] Read Info about KILL file.
-
- A KILL file contains lisp expressions to be applied to a selected
-newsgroup. The purpose is to mark articles as read on the basis of
-some set of regexps. A global KILL file is applied to every newsgroup,
-and a local KILL file is applied to a specified newsgroup. Since a
-global KILL file is applied to every newsgroup, for better performance
-use a local one.
-
- A KILL file can contain any kind of Emacs lisp expressions expected
-to be evaluated in the Summary buffer. Writing lisp programs for this
-purpose is not so easy because the internal working of GNUS must be
-well-known. For this reason, GNUS provides a general function which
-does this easily for non-Lisp programmers.
-
- The `gnus-kill' function executes commands available in Summary Mode
-by their key sequences. `gnus-kill' should be called with FIELD,
-REGEXP and optional COMMAND and ALL. FIELD is a string representing
-the header field or an empty string. If FIELD is an empty string, the
-entire article body is searched for. REGEXP is a string which is
-compared with FIELD value. COMMAND is a string representing a valid
-key sequence in Summary Mode or Lisp expression. COMMAND is default to
-'(gnus-summary-mark-as-read nil \"X\"). Make sure that COMMAND is
-executed in the Summary buffer. If the second optional argument ALL
-is non-nil, the COMMAND is applied to articles which are already
-marked as read or unread. Articles which are marked are skipped over
-by default.
-
- For example, if you want to mark articles of which subjects contain
-the string `AI' as read, a possible KILL file may look like:
-
- (gnus-kill \"Subject\" \"AI\")
-
- If you want to mark articles with `D' instead of `X', you can use
-the following expression:
-
- (gnus-kill \"Subject\" \"AI\" \"d\")
-
-In this example it is assumed that the command
-`gnus-summary-mark-as-read-forward' is assigned to `d' in Summary Mode.
-
- It is possible to delete unnecessary headers which are marked with
-`X' in a KILL file as follows:
-
- (gnus-expunge \"X\")
-
- If the Summary buffer is empty after applying KILL files, GNUS will
-exit the selected newsgroup normally. If headers which are marked
-with `D' are deleted in a KILL file, it is impossible to read articles
-which are marked as read in the previous GNUS sessions. Marks other
-than `D' should be used for articles which should really be deleted.
-
-Entry to this mode calls emacs-lisp-mode-hook and
-gnus-kill-file-mode-hook with no arguments, if that value is non-nil."
- (interactive)
- (kill-all-local-variables)
- (use-local-map gnus-kill-file-mode-map)
- (set-syntax-table emacs-lisp-mode-syntax-table)
- (setq major-mode 'gnus-kill-file-mode)
- (setq mode-name "KILL-File")
- (lisp-mode-variables nil)
- (run-hooks 'emacs-lisp-mode-hook 'gnus-kill-file-mode-hook))
-
-(defun gnus-kill-file-edit-file (newsgroup)
- "Begin editing a KILL file of NEWSGROUP.
-If NEWSGROUP is nil, the global KILL file is selected."
- (interactive "sNewsgroup: ")
- (let ((file (gnus-newsgroup-kill-file newsgroup)))
- (gnus-make-directory (file-name-directory file))
- ;; Save current window configuration if this is first invocation.
- (or (and (get-file-buffer file)
- (get-buffer-window (get-file-buffer file)))
- (setq gnus-winconf-kill-file (current-window-configuration)))
- ;; Hack windows.
- (let ((buffer (find-file-noselect file)))
- (cond ((get-buffer-window buffer)
- (pop-to-buffer buffer))
- ((eq major-mode 'gnus-group-mode)
- (gnus-configure-windows '(1 0 0)) ;Take all windows.
- (pop-to-buffer gnus-group-buffer)
- (let ((gnus-summary-buffer buffer))
- (gnus-configure-windows '(1 1 0)) ;Split into two.
- (pop-to-buffer buffer)))
- ((eq major-mode 'gnus-summary-mode)
- (gnus-configure-windows 'article)
- (pop-to-buffer gnus-article-buffer)
- (bury-buffer gnus-article-buffer)
- (switch-to-buffer buffer))
- (t ;No good rules.
- (find-file-other-window file))
- ))
- (gnus-kill-file-mode)
- ))
-
-(defun gnus-kill-file-kill-by-subject ()
- "Insert KILL command for current subject."
- (interactive)
- (insert
- (format "(gnus-kill \"Subject\" %s)\n"
- (prin1-to-string
- (if gnus-current-kill-article
- (regexp-quote
- (nntp-header-subject
- ;; No need to speed up this command.
- ;;(gnus-get-header-by-number gnus-current-kill-article)
- (gnus-find-header-by-number gnus-newsgroup-headers
- gnus-current-kill-article)))
- "")))))
-
-(defun gnus-kill-file-kill-by-author ()
- "Insert KILL command for current author."
- (interactive)
- (insert
- (format "(gnus-kill \"From\" %s)\n"
- (prin1-to-string
- (if gnus-current-kill-article
- (regexp-quote
- (nntp-header-from
- ;; No need to speed up this command.
- ;;(gnus-get-header-by-number gnus-current-kill-article)
- (gnus-find-header-by-number gnus-newsgroup-headers
- gnus-current-kill-article)))
- "")))))
-
-(defun gnus-kill-file-apply-buffer ()
- "Apply current buffer to current newsgroup."
- (interactive)
- (if (and gnus-current-kill-article
- (get-buffer gnus-summary-buffer))
- ;; Assume newsgroup is selected.
- (let ((string (concat "(progn \n" (buffer-string) "\n)" )))
- (save-excursion
- (save-window-excursion
- (pop-to-buffer gnus-summary-buffer)
- (eval (car (read-from-string string))))))
- (ding) (message "No newsgroup is selected.")))
-
-(defun gnus-kill-file-apply-last-sexp ()
- "Apply sexp before point in current buffer to current newsgroup."
- (interactive)
- (if (and gnus-current-kill-article
- (get-buffer gnus-summary-buffer))
- ;; Assume newsgroup is selected.
- (let ((string
- (buffer-substring
- (save-excursion (forward-sexp -1) (point)) (point))))
- (save-excursion
- (save-window-excursion
- (pop-to-buffer gnus-summary-buffer)
- (eval (car (read-from-string string))))))
- (ding) (message "No newsgroup is selected.")))
-
-(defun gnus-kill-file-exit ()
- "Save a KILL file, then return to the previous buffer."
- (interactive)
- (save-buffer)
- (let ((killbuf (current-buffer)))
- ;; We don't want to return to Article buffer.
- (and (get-buffer gnus-article-buffer)
- (bury-buffer (get-buffer gnus-article-buffer)))
- ;; Delete the KILL file windows.
- (delete-windows-on killbuf)
- ;; Restore last window configuration if available.
- (and gnus-winconf-kill-file
- (set-window-configuration gnus-winconf-kill-file))
- (setq gnus-winconf-kill-file nil)
- ;; Kill the KILL file buffer. Suggested by tale@pawl.rpi.edu.
- (kill-buffer killbuf)))
-
-\f
-;;;
-;;; Utility functions
-;;;
-
-;; Basic ideas by emv@math.lsa.umich.edu (Edward Vielmetti)
-
-(defun gnus-batch-kill ()
- "Run batched KILL.
-Usage: emacs -batch -l gnus -f gnus-batch-kill NEWSGROUP ..."
- (if (not noninteractive)
- (error "gnus-batch-kill is to be used only with -batch"))
- (let* ((group nil)
- (subscribed nil)
- (newsrc nil)
- (yes-and-no
- (gnus-parse-n-options
- (apply (function concat)
- (mapcar (function (lambda (g) (concat g " ")))
- command-line-args-left))))
- (yes (car yes-and-no))
- (no (cdr yes-and-no))
- ;; Disable verbose message.
- (gnus-novice-user nil)
- (gnus-large-newsgroup nil)
- (nntp-large-newsgroup nil))
- ;; Eat all arguments.
- (setq command-line-args-left nil)
- ;; Startup GNUS.
- (gnus)
- ;; Apply kills to specified newsgroups in command line arguments.
- (setq newsrc (copy-sequence gnus-newsrc-assoc))
- (while newsrc
- (setq group (car (car newsrc)))
- (setq subscribed (nth 1 (car newsrc)))
- (setq newsrc (cdr newsrc))
- (if (and subscribed
- (not (zerop (nth 1 (gnus-gethash group gnus-unread-hashtb))))
- (if yes
- (string-match yes group) t)
- (or (null no)
- (not (string-match no group))))
- (progn
- (gnus-summary-read-group group nil t)
- (if (eq (current-buffer) (get-buffer gnus-summary-buffer))
- (gnus-summary-exit t))
- ))
- )
- ;; Finally, exit Emacs.
- (set-buffer gnus-group-buffer)
- (gnus-group-exit)
- ))
-
-;; For saving articles
-
-(defun gnus-Numeric-save-name (newsgroup headers &optional last-file)
- "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
-If variable `gnus-use-long-file-name' is nil, it is ~/News/News.group/num.
-Otherwise, it is like ~/News/news/group/num."
- (let ((default
- (expand-file-name
- (concat (if gnus-use-long-file-name
- (gnus-capitalize-newsgroup newsgroup)
- (gnus-newsgroup-directory-form newsgroup))
- "/" (int-to-string (nntp-header-number headers)))
- (or gnus-article-save-directory "~/News"))))
- (if (and last-file
- (string-equal (file-name-directory default)
- (file-name-directory last-file))
- (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
- default
- (or last-file default))))
-
-(defun gnus-numeric-save-name (newsgroup headers &optional last-file)
- "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
-If variable `gnus-use-long-file-name' is nil, it is ~/News/news.group/num.
-Otherwise, it is like ~/News/news/group/num."
- (let ((default
- (expand-file-name
- (concat (if gnus-use-long-file-name
- newsgroup
- (gnus-newsgroup-directory-form newsgroup))
- "/" (int-to-string (nntp-header-number headers)))
- (or gnus-article-save-directory "~/News"))))
- (if (and last-file
- (string-equal (file-name-directory default)
- (file-name-directory last-file))
- (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
- default
- (or last-file default))))
-
-(defun gnus-Plain-save-name (newsgroup headers &optional last-file)
- "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
-If variable `gnus-use-long-file-name' is nil, it is ~/News/News.group.
-Otherwise, it is like ~/News/news/group/news."
- (or last-file
- (expand-file-name
- (if gnus-use-long-file-name
- (gnus-capitalize-newsgroup newsgroup)
- (concat (gnus-newsgroup-directory-form newsgroup) "/news"))
- (or gnus-article-save-directory "~/News"))))
-
-(defun gnus-plain-save-name (newsgroup headers &optional last-file)
- "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
-If variable `gnus-use-long-file-name' is nil, it is ~/News/news.group.
-Otherwise, it is like ~/News/news/group/news."
- (or last-file
- (expand-file-name
- (if gnus-use-long-file-name
- newsgroup
- (concat (gnus-newsgroup-directory-form newsgroup) "/news"))
- (or gnus-article-save-directory "~/News"))))
-
-(defun gnus-Folder-save-name (newsgroup headers &optional last-folder)
- "Generate folder name from NEWSGROUP, HEADERS, and optional LAST-FOLDER.
-If variable `gnus-use-long-file-name' is nil, it is +News.group.
-Otherwise, it is like +news/group."
- (or last-folder
- (concat "+"
- (if gnus-use-long-file-name
- (gnus-capitalize-newsgroup newsgroup)
- (gnus-newsgroup-directory-form newsgroup)))))
-
-(defun gnus-folder-save-name (newsgroup headers &optional last-folder)
- "Generate folder name from NEWSGROUP, HEADERS, and optional LAST-FOLDER.
-If variable `gnus-use-long-file-name' is nil, it is +news.group.
-Otherwise, it is like +news/group."
- (or last-folder
- (concat "+"
- (if gnus-use-long-file-name
- newsgroup
- (gnus-newsgroup-directory-form newsgroup)))))
-
-;; For KILL files
-
-(defun gnus-apply-kill-file ()
- "Apply KILL file to the current newsgroup."
- ;; Apply the global KILL file.
- (load (gnus-newsgroup-kill-file nil) t nil t)
- ;; And then apply the local KILL file.
- (load (gnus-newsgroup-kill-file gnus-newsgroup-name) t nil t))
-
-(defun gnus-Newsgroup-kill-file (newsgroup)
- "Return the name of a KILL file of NEWSGROUP.
-If NEWSGROUP is nil, return the global KILL file instead."
- (cond ((or (null newsgroup)
- (string-equal newsgroup ""))
- ;; The global KILL file is placed at top of the directory.
- (expand-file-name gnus-kill-file-name
- (or gnus-article-save-directory "~/News")))
- (gnus-use-long-file-name
- ;; Append ".KILL" to capitalized newsgroup name.
- (expand-file-name (concat (gnus-capitalize-newsgroup newsgroup)
- "." gnus-kill-file-name)
- (or gnus-article-save-directory "~/News")))
- (t
- ;; Place "KILL" under the hierarchical directory.
- (expand-file-name (concat (gnus-newsgroup-directory-form newsgroup)
- "/" gnus-kill-file-name)
- (or gnus-article-save-directory "~/News")))
- ))
-
-(defun gnus-newsgroup-kill-file (newsgroup)
- "Return the name of a KILL file of NEWSGROUP.
-If NEWSGROUP is nil, return the global KILL file instead."
- (cond ((or (null newsgroup)
- (string-equal newsgroup ""))
- ;; The global KILL file is placed at top of the directory.
- (expand-file-name gnus-kill-file-name
- (or gnus-article-save-directory "~/News")))
- (gnus-use-long-file-name
- ;; Append ".KILL" to newsgroup name.
- (expand-file-name (concat newsgroup "." gnus-kill-file-name)
- (or gnus-article-save-directory "~/News")))
- (t
- ;; Place "KILL" under the hierarchical directory.
- (expand-file-name (concat (gnus-newsgroup-directory-form newsgroup)
- "/" gnus-kill-file-name)
- (or gnus-article-save-directory "~/News")))
- ))
-
-;; For subscribing new newsgroup
-
-(defun gnus-subscribe-randomly (newsgroup)
- "Subscribe new NEWSGROUP and insert it at the beginning of newsgroups."
- (gnus-subscribe-newsgroup newsgroup
- (car (car gnus-newsrc-assoc))))
-
-(defun gnus-subscribe-alphabetically (newgroup)
- "Subscribe new NEWSGROUP and insert it in strict alphabetic order."
- ;; Basic ideas by mike-w@cs.aukuni.ac.nz (Mike Williams)
- (let ((groups gnus-newsrc-assoc)
- (before nil))
- (while (and (not before) groups)
- (if (string< newgroup (car (car groups)))
- (setq before (car (car 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 (find-file-noselect gnus-current-startup-file))
- (let ((groupkey newgroup)
- (before nil))
- (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 (buffer-substring
- (match-beginning 1) (match-end 1)))
- (string< before newgroup)))
- ))
- ;; Remove tail of newsgroup name (eg. a.b.c -> a.b)
- (setq groupkey
- (if (string-match "^\\(.*\\)\\.[^.]+$" groupkey)
- (substring groupkey (match-beginning 1) (match-end 1)))))
- (gnus-subscribe-newsgroup newgroup before)
- )))
-
-(defun gnus-subscribe-interactively (newsgroup)
- "Subscribe new NEWSGROUP interactively.
-It is inserted in hierarchical newsgroup order if subscribed.
-Unless, it is killed."
- (if (y-or-n-p (format "Subscribe new newsgroup: %s " newsgroup))
- (gnus-subscribe-hierarchically newsgroup)
- ;; Save in kill-ring
- (gnus-subscribe-newsgroup newsgroup)
- (gnus-kill-newsgroup newsgroup)))
-
-(defun gnus-subscribe-newsgroup (newsgroup &optional next)
- "Subscribe new NEWSGROUP.
-If optional argument NEXT is non-nil, it is inserted before NEXT."
- (gnus-insert-newsgroup (list newsgroup t) next)
- (message "Subscribe newsgroup: %s" newsgroup))
-
-;; For directories
-
-(defun gnus-newsgroup-directory-form (newsgroup)
- "Make hierarchical directory name from NEWSGROUP name."
- (let ((newsgroup (substring newsgroup 0)) ;Copy string.
- (len (length newsgroup))
- (idx 0))
- ;; Replace all occurrences of `.' with `/'.
- (while (< idx len)
- (if (= (aref newsgroup idx) ?.)
- (aset newsgroup idx ?/))
- (setq idx (1+ idx)))
- newsgroup
- ))
-
-(defun gnus-make-directory (directory)
- "Make DIRECTORY recursively."
- (let ((directory (expand-file-name directory default-directory)))
- (or (file-exists-p directory)
- (gnus-make-directory-1 "" directory))
- ))
-
-(defun gnus-make-directory-1 (head tail)
- (cond ((string-match "^/\\([^/]+\\)" tail)
- ;; ange-ftp interferes with calling match-* after
- ;; calling file-name-as-directory.
- (let ((beg (match-beginning 1))
- (end (match-end 1)))
- (setq head (concat (file-name-as-directory head)
- (substring tail beg end)))
- (or (file-exists-p head)
- (call-process "mkdir" nil nil nil head))
- (gnus-make-directory-1 head (substring tail end))))
- ((string-equal tail "") t)
- ))
-
-(defun gnus-capitalize-newsgroup (newsgroup)
- "Capitalize NEWSGROUP name with treating '.' and '-' as part of words."
- ;; Suggested by "Jonathan I. Kamens" <jik@pit-manager.MIT.EDU>.
- (let ((current-syntax-table (copy-syntax-table (syntax-table))))
- (unwind-protect
- (progn
- (modify-syntax-entry ?- "w")
- (modify-syntax-entry ?. "w")
- (capitalize newsgroup))
- (set-syntax-table current-syntax-table))))
-
-(defun gnus-simplify-subject (subject &optional re-only)
- "Remove `Re:' and words in parentheses.
-If optional argument RE-ONLY is non-nil, strip `Re:' only."
- (let ((case-fold-search t)) ;Ignore case.
- ;; Remove `Re:' and `Re^N:'.
- (if (string-match "\\`\\(re\\(\\^[0-9]+\\)?:[ \t]+\\)+" subject)
- (setq subject (substring subject (match-end 0))))
- ;; Remove words in parentheses from end.
- (or re-only
- (while (string-match "[ \t\n]*([^()]*)[ \t\n]*\\'" subject)
- (setq subject (substring subject 0 (match-beginning 0)))))
- ;; Return subject string.
- subject
- ))
-
-(defun gnus-optional-lines-and-from (header)
- "Return a string like `NNN:AUTHOR' from HEADER."
- (let ((name-length (length "umerin@photon")))
- (substring (format "%3d:%s"
- ;; Lines of the article.
- ;; Suggested by dana@bellcore.com.
- (nntp-header-lines header)
- ;; Its author.
- (concat (mail-strip-quoted-names
- (nntp-header-from header))
- (make-string name-length ? )))
- ;; 4 stands for length of `NNN:'.
- 0 (+ 4 name-length))))
-
-(defun gnus-optional-lines (header)
- "Return a string like `NNN' from HEADER."
- (format "%4d" (nntp-header-lines header)))
-
-;; Basic ideas by flee@cs.psu.edu (Felix Lee)
-
-(defun gnus-keysort-headers (predicate key &optional reverse)
- "Sort current headers by PREDICATE using a value passed by KEY safely.
-*Safely* means C-g quitting is disabled during sort.
-Optional argument REVERSE means reverse order."
- (let ((inhibit-quit t))
- (setq gnus-newsgroup-headers
- (if reverse
- (nreverse
- (gnus-keysort (nreverse gnus-newsgroup-headers) predicate key))
- (gnus-keysort gnus-newsgroup-headers predicate key)))
- ;; Make sure we don't have to call
- ;; gnus-clear-hashtables-for-newsgroup-headers to clear hash
- ;; tables for the variable gnus-newsgroup-headers since no new
- ;; entry is added to nor deleted from the variable.
- ))
-
-(defun gnus-keysort (list predicate key)
- "Sort LIST by PREDICATE using a value passed by KEY."
- (mapcar (function cdr)
- (sort (mapcar (function (lambda (a) (cons (funcall key a) a))) list)
- (function (lambda (a b)
- (funcall predicate (car a) (car b)))))))
-
-(defun gnus-sort-headers (predicate &optional reverse)
- "Sort current headers by PREDICATE safely.
-*Safely* means C-g quitting is disabled during sort.
-Optional argument REVERSE means reverse order."
- (let ((inhibit-quit t))
- (setq gnus-newsgroup-headers
- (if reverse
- (nreverse (sort (nreverse gnus-newsgroup-headers) predicate))
- (sort gnus-newsgroup-headers predicate)))
- ;; Make sure we don't have to call
- ;; gnus-clear-hashtables-for-newsgroup-headers to clear hash
- ;; tables for the variable gnus-newsgroup-headers since no new
- ;; entry is added to nor deleted from the variable.
- ))
-
-(defun gnus-string-lessp (a b)
- "Return T if first arg string is less than second in lexicographic order.
-If case-fold-search is non-nil, case of letters is ignored."
- (if case-fold-search
- (string-lessp (downcase a) (downcase b))
- (string-lessp a b)))
-
-(defun gnus-date-lessp (date1 date2)
- "Return T if DATE1 is earlyer than DATE2."
- (string-lessp (gnus-sortable-date date1)
- (gnus-sortable-date date2)))
-
-(defun gnus-sortable-date (date)
- "Make sortable string by string-lessp from DATE.
-Timezone package is used."
- (let* ((date (timezone-parse-date date)) ;[Y M D T]
- (year (string-to-int (aref date 0)))
- (month (string-to-int (aref date 1)))
- (day (string-to-int (aref date 2)))
- (time (aref date 3))) ;HH:MM:SS
- ;; Timezone package is used. But, we don't have to care about
- ;; the timezone since article's timezones are always GMT.
- (timezone-make-sortable-date year month day time)
- ))
-
-;;(defun gnus-sortable-date (date)
-;; "Make sortable string by string-lessp from DATE."
-;; (let ((month '(("JAN" . " 1")("FEB" . " 2")("MAR" . " 3")
-;; ("APR" . " 4")("MAY" . " 5")("JUN" . " 6")
-;; ("JUL" . " 7")("AUG" . " 8")("SEP" . " 9")
-;; ("OCT" . "10")("NOV" . "11")("DEC" . "12")))
-;; (date (or date "")))
-;; ;; Can understand the following styles:
-;; ;; (1) 14 Apr 89 03:20:12 GMT
-;; ;; (2) Fri, 17 Mar 89 4:01:33 GMT
-;; (if (string-match
-;; "\\([0-9]+\\) \\([^ ,]+\\) \\([0-9]+\\) \\([0-9:]+\\)" date)
-;; (concat
-;; ;; Year
-;; (substring date (match-beginning 3) (match-end 3))
-;; ;; Month
-;; (cdr
-;; (assoc
-;; (upcase (substring date (match-beginning 2) (match-end 2))) month))
-;; ;; Day
-;; (format "%2d" (string-to-int
-;; (substring date
-;; (match-beginning 1) (match-end 1))))
-;; ;; Time
-;; (substring date (match-beginning 4) (match-end 4)))
-;; ;; Cannot understand DATE string.
-;; date
-;; )
-;; ))
-
-(defun gnus-fetch-field (field)
- "Return the value of the header FIELD of current article."
- (save-excursion
- (save-restriction
- (widen)
- (goto-char (point-min))
- (narrow-to-region (point-min)
- (progn (search-forward "\n\n" nil 'move) (point)))
- (mail-fetch-field field))))
-
-(fset 'gnus-expunge 'gnus-summary-delete-marked-with)
-
-(defun gnus-kill (field regexp &optional command all)
- "If FIELD of an article matches REGEXP, execute COMMAND.
-Optional 1st argument COMMAND is default to
- (gnus-summary-mark-as-read nil \"X\").
-If optional 2nd argument ALL is non-nil, articles marked are also applied to.
-If FIELD is an empty string (or nil), entire article body is searched for.
-COMMAND must be a lisp expression or a string representing a key sequence."
- ;; We don't want to change current point nor window configuration.
- (save-excursion
- (save-window-excursion
- ;; Selected window must be Summary buffer to execute keyboard
- ;; macros correctly. See command_loop_1.
- (switch-to-buffer gnus-summary-buffer 'norecord)
- (goto-char (point-min)) ;From the beginning.
- (if (null command)
- (setq command '(gnus-summary-mark-as-read nil "X")))
- (gnus-execute field regexp command nil (not all))
- )))
-
-(defun gnus-execute (field regexp form &optional backward ignore-marked)
- "If FIELD of article header matches REGEXP, execute lisp FORM (or a string).
-If FIELD is an empty string (or nil), entire article body is searched for.
-If optional 1st argument BACKWARD is non-nil, do backward instead.
-If optional 2nd argument IGNORE-MARKED is non-nil, articles which are
-marked as read or unread are ignored."
- (let ((function nil)
- (header nil)
- (article nil))
- (if (string-equal field "")
- (setq field nil))
- (if (null field)
- nil
- (or (stringp field)
- (setq field (symbol-name field)))
- ;; Get access function of header filed.
- (setq function (intern-soft (concat "gnus-header-" (downcase field))))
- (if (and function (fboundp function))
- (setq function (symbol-function function))
- (error "Unknown header field: \"%s\"" field)))
- ;; Make FORM funcallable.
- (if (and (listp form) (not (eq (car form) 'lambda)))
- (setq form (list 'lambda nil form)))
- ;; Starting from the current article.
- (or (and ignore-marked
- ;; Articles marked as read and unread should be ignored.
- (setq article (gnus-summary-article-number))
- (or (not (memq article gnus-newsgroup-unreads)) ;Marked as read.
- (memq article gnus-newsgroup-marked) ;Marked as unread.
- ))
- (gnus-execute-1 function regexp form))
- (while (gnus-summary-search-subject backward ignore-marked nil)
- (gnus-execute-1 function regexp form))
- ))
-
-(defun gnus-execute-1 (function regexp form)
- (save-excursion
- ;; The point of Summary buffer must be saved during execution.
- (let ((article (gnus-summary-article-number)))
- (if (null article)
- nil ;Nothing to do.
- (if function
- ;; Compare with header field.
- (let (;;(header (gnus-find-header-by-number
- ;; gnus-newsgroup-headers article))
- (header (gnus-get-header-by-number article))
- (value nil))
- (and header
- (progn
- (setq value (funcall function header))
- ;; Number (Lines:) or symbol must be converted to string.
- (or (stringp value)
- (setq value (prin1-to-string value)))
- (string-match regexp value))
- (if (stringp form) ;Keyboard macro.
- (execute-kbd-macro form)
- (funcall form))))
- ;; Search article body.
- (let ((gnus-current-article nil) ;Save article pointer.
- (gnus-last-article nil)
- (gnus-break-pages nil) ;No need to break pages.
- (gnus-mark-article-hook nil)) ;Inhibit marking as read.
- (message "Searching for article: %d..." article)
- (gnus-article-setup-buffer)
- (gnus-article-prepare article t)
- (if (save-excursion
- (set-buffer gnus-article-buffer)
- (goto-char (point-min))
- (re-search-forward regexp nil t))
- (if (stringp form) ;Keyboard macro.
- (execute-kbd-macro form)
- (funcall form))))
- ))
- )))
-
-;;; caesar-region written by phr@prep.ai.mit.edu Nov 86
-;;; modified by tower@prep Nov 86
-;;; Modified by umerin@flab.flab.Fujitsu.JUNET for ROT47.
-
-(defun gnus-caesar-region (&optional n)
- "Caesar rotation of region by N, default 13, for decrypting netnews.
-ROT47 will be performed for Japanese text in any case."
- (interactive (if current-prefix-arg ; Was there a prefix arg?
- (list (prefix-numeric-value current-prefix-arg))
- (list nil)))
- (cond ((not (numberp n)) (setq n 13))
- ((< n 0) (setq n (- 26 (% (- n) 26))))
- (t (setq n (% n 26)))) ;canonicalize N
- (if (not (zerop n)) ; no action needed for a rot of 0
- (progn
- (if (or (not (boundp 'caesar-translate-table))
- (/= (aref caesar-translate-table ?a) (+ ?a n)))
- (let ((i 0) (lower "abcdefghijklmnopqrstuvwxyz") upper)
- (message "Building caesar-translate-table...")
- (setq caesar-translate-table (make-vector 256 0))
- (while (< i 256)
- (aset caesar-translate-table i i)
- (setq i (1+ i)))
- (setq lower (concat lower lower) upper (upcase lower) i 0)
- (while (< i 26)
- (aset caesar-translate-table (+ ?a i) (aref lower (+ i n)))
- (aset caesar-translate-table (+ ?A i) (aref upper (+ i n)))
- (setq i (1+ i)))
- ;; ROT47 for Japanese text.
- ;; Thanks to ichikawa@flab.fujitsu.junet.
- (setq i 161)
- (let ((t1 (logior ?O 128))
- (t2 (logior ?! 128))
- (t3 (logior ?~ 128)))
- (while (< i 256)
- (aset caesar-translate-table i
- (let ((v (aref caesar-translate-table i)))
- (if (<= v t1) (if (< v t2) v (+ v 47))
- (if (<= v t3) (- v 47) v))))
- (setq i (1+ i))))
- (message "Building caesar-translate-table... done")))
- (let ((from (region-beginning))
- (to (region-end))
- (i 0) str len)
- (setq str (buffer-substring from to))
- (setq len (length str))
- (while (< i len)
- (aset str i (aref caesar-translate-table (aref str i)))
- (setq i (1+ i)))
- (goto-char from)
- (delete-region from to)
- (insert str)))))
-
-;; Functions accessing headers.
-;; Functions are more convenient than macros in some case.
-
-(defun gnus-header-number (header)
- "Return article number in HEADER."
- (nntp-header-number header))
-
-(defun gnus-header-subject (header)
- "Return subject string in HEADER."
- (nntp-header-subject header))
-
-(defun gnus-header-from (header)
- "Return author string in HEADER."
- (nntp-header-from header))
-
-(defun gnus-header-xref (header)
- "Return xref string in HEADER."
- (nntp-header-xref header))
-
-(defun gnus-header-lines (header)
- "Return lines in HEADER."
- (nntp-header-lines header))
-
-(defun gnus-header-date (header)
- "Return date in HEADER."
- (nntp-header-date header))
-
-(defun gnus-header-id (header)
- "Return Id in HEADER."
- (nntp-header-id header))
-
-(defun gnus-header-references (header)
- "Return references in HEADER."
- (nntp-header-references header))
-
-\f
-;;;
-;;; Article savers.
-;;;
-
-(defun gnus-output-to-rmail (file-name)
- "Append the current article to an Rmail file named FILE-NAME."
- (require 'rmail)
- ;; Most of these codes are borrowed from rmailout.el.
- (setq file-name (expand-file-name file-name))
- (setq rmail-last-rmail-file file-name)
- (let ((artbuf (current-buffer))
- (tmpbuf (get-buffer-create " *GNUS-output*")))
- (save-excursion
- (or (get-file-buffer file-name)
- (file-exists-p file-name)
- (if (yes-or-no-p
- (concat "\"" file-name "\" does not exist, create it? "))
- (let ((file-buffer (create-file-buffer file-name)))
- (save-excursion
- (set-buffer file-buffer)
- (rmail-insert-rmail-file-header)
- (let ((require-final-newline nil))
- (write-region (point-min) (point-max) file-name t 1)))
- (kill-buffer file-buffer))
- (error "Output file does not exist")))
- (set-buffer tmpbuf)
- (buffer-flush-undo (current-buffer))
- (erase-buffer)
- (insert-buffer-substring artbuf)
- (gnus-convert-article-to-rmail)
- ;; Decide whether to append to a file or to an Emacs buffer.
- (let ((outbuf (get-file-buffer file-name)))
- (if (not outbuf)
- (append-to-file (point-min) (point-max) file-name)
- ;; File has been visited, in buffer OUTBUF.
- (set-buffer outbuf)
- (let ((buffer-read-only nil)
- (msg (and (boundp 'rmail-current-message)
- rmail-current-message)))
- ;; If MSG is non-nil, buffer is in RMAIL mode.
- (if msg
- (progn (widen)
- (narrow-to-region (point-max) (point-max))))
- (insert-buffer-substring tmpbuf)
- (if msg
- (progn
- (goto-char (point-min))
- (widen)
- (search-backward "\^_")
- (narrow-to-region (point) (point-max))
- (goto-char (1+ (point-min)))
- (rmail-count-new-messages t)
- (rmail-show-message msg))))))
- )
- (kill-buffer tmpbuf)
- ))
-
-(defun gnus-output-to-file (file-name)
- "Append the current article to a file named FILE-NAME."
- (setq file-name (expand-file-name file-name))
- (let ((artbuf (current-buffer))
- (tmpbuf (get-buffer-create " *GNUS-output*")))
- (save-excursion
- (set-buffer tmpbuf)
- (buffer-flush-undo (current-buffer))
- (erase-buffer)
- (insert-buffer-substring artbuf)
- ;; Append newline at end of the buffer as separator, and then
- ;; save it to file.
- (goto-char (point-max))
- (insert "\n")
- (append-to-file (point-min) (point-max) file-name))
- (kill-buffer tmpbuf)
- ))
-
-(defun gnus-convert-article-to-rmail ()
- "Convert article in current buffer to Rmail message format."
- (let ((buffer-read-only nil))
- ;; Convert article directly into Babyl format.
- ;; Suggested by Rob Austein <sra@lcs.mit.edu>
- (goto-char (point-min))
- (insert "\^L\n0, unseen,,\n*** EOOH ***\n")
- (while (search-forward "\n\^_" nil t) ;single char
- (replace-match "\n^_")) ;2 chars: "^" and "_"
- (goto-char (point-max))
- (insert "\^_")))
-
-;;(defun gnus-convert-article-to-rmail ()
-;; "Convert article in current buffer to Rmail message format."
-;; (let ((buffer-read-only nil))
-;; ;; Insert special header of Unix mail.
-;; (goto-char (point-min))
-;; (insert "From "
-;; (or (mail-strip-quoted-names (mail-fetch-field "from"))
-;; "unknown")
-;; " " (current-time-string) "\n")
-;; ;; Stop quoting `From' since this seems unnecessary in most cases.
-;; ;; ``Quote'' "\nFrom " as "\n>From "
-;; ;;(while (search-forward "\nFrom " nil t)
-;; ;; (forward-char -5)
-;; ;; (insert ?>))
-;; ;; Convert article to babyl format.
-;; (rmail-convert-to-babyl-format)
-;; ))
-
-\f
-;;;
-;;; Internal functions.
-;;;
-
-(defun gnus-start-news-server (&optional confirm)
- "Open network stream to remote NNTP server.
-If optional argument CONFIRM is non-nil, ask you host that NNTP server
-is running even if it is defined.
-Run gnus-open-server-hook just before opening news server."
- (if (gnus-server-opened)
- ;; Stream is already opened.
- nil
- ;; Open NNTP server.
- (if (or confirm
- (null gnus-nntp-server))
- ;; If someone has set the service to nil, then this should always
- ;; be the local host.
- (if gnus-nntp-service
- (if (and (boundp 'gnus-secondary-servers) gnus-secondary-servers)
- ;; Read server name with completion.
- (setq gnus-nntp-server
- (completing-read "NNTP server: "
- (cons (list gnus-nntp-server)
- gnus-secondary-servers)
- nil nil gnus-nntp-server))
- (setq gnus-nntp-server
- (read-string "NNTP server: " gnus-nntp-server)))
- (setq gnus-nntp-server "")))
- ;; If no server name is given, local host is assumed.
- (if (or (string-equal gnus-nntp-server "")
- (string-equal gnus-nntp-server "::")) ;RMS preference.
- (setq gnus-nntp-server (system-name)))
- ;; gnus-nntp-server must be either (system-name), ':DIRECTORY', or
- ;; nntp server name. I mean '::' cannot be a value of
- ;; gnus-nntp-server.
- (cond ((and (null gnus-nntp-service)
- (string-equal gnus-nntp-server (system-name)))
- (require 'nnspool)
- (gnus-define-access-method 'nnspool)
- (message "Looking up local news spool..."))
- ((string-match ":" gnus-nntp-server)
- ;; :DIRECTORY
- (require 'mhspool)
- (gnus-define-access-method 'mhspool)
- (message "Looking up private directory..."))
- (t
- (gnus-define-access-method 'nntp)
- (message "Connecting to NNTP server on %s..." gnus-nntp-server)))
- (run-hooks 'gnus-open-server-hook)
- (cond ((gnus-server-opened) ;Maybe opened in gnus-open-server-hook.
- (message ""))
- ((gnus-open-server gnus-nntp-server gnus-nntp-service)
- (message ""))
- (t
- (error
- (gnus-nntp-message
- (format "Cannot open NNTP server on %s" gnus-nntp-server)))))
- ))
-
-;; Dummy functions used only once. Should return nil.
-(defun gnus-server-opened () nil)
-(defun gnus-close-server () nil)
-
-(defun gnus-nntp-message (&optional message)
- "Return a message returned from NNTP server.
-If no message is available and optional MESSAGE is given, return it."
- (let ((status (gnus-status-message))
- (message (or message "")))
- (if (and (stringp status)
- (> (length status) 0))
- status message)))
-
-(defun gnus-define-access-method (method &optional access-methods)
- "Define access functions for the access METHOD.
-Methods definition is taken from optional argument ACCESS-METHODS or
-the variable gnus-access-methods."
- (let ((bindings
- (cdr (assoc method (or access-methods gnus-access-methods)))))
- (if (null bindings)
- (error "Unknown access method: %s" method)
- ;; Should not use symbol-function here since overload does not work.
- (while bindings
- ;; Alist syntax is different from that of 3.14.3.
- (fset (car (car bindings)) (car (cdr (car bindings))))
- (setq bindings (cdr bindings)))
- )))
-
-(defun gnus-select-newsgroup (group &optional show-all)
- "Select newsgroup GROUP.
-If optional argument SHOW-ALL is non-nil, all of articles in the group
-are selected."
- ;; Make sure a connection to NNTP server is alive.
- (gnus-start-news-server)
- (if (gnus-request-group group)
- (let ((articles nil))
- (setq gnus-newsgroup-name group)
- (setq gnus-newsgroup-unreads
- (gnus-uncompress-sequence
- (nthcdr 2 (gnus-gethash group gnus-unread-hashtb))))
- (cond (show-all
- ;; Select all active articles.
- (setq articles
- (gnus-uncompress-sequence
- (nthcdr 2 (gnus-gethash group gnus-active-hashtb)))))
- (t
- ;; Select unread articles only.
- (setq articles gnus-newsgroup-unreads)))
- ;; Require confirmation if selecting large newsgroup.
- (setq gnus-newsgroup-unselected nil)
- (if (not (numberp gnus-large-newsgroup))
- nil
- (let ((selected nil)
- (number (length articles)))
- (if (> number gnus-large-newsgroup)
- (progn
- (condition-case ()
- (let ((input
- (read-string
- (format
- "How many articles from %s (default %d): "
- gnus-newsgroup-name number))))
- (setq selected
- (if (string-equal input "")
- number (string-to-int input))))
- (quit
- (setq selected 0)))
- (cond ((and (> selected 0)
- (< selected number))
- ;; Select last N articles.
- (setq articles (nthcdr (- number selected) articles)))
- ((and (< selected 0)
- (< (- 0 selected) number))
- ;; Select first N articles.
- (setq selected (- 0 selected))
- (setq articles (copy-sequence articles))
- (setcdr (nthcdr (1- selected) articles) nil))
- ((zerop selected)
- (setq articles nil))
- ;; Otherwise select all.
- )
- ;; Get unselected unread articles.
- (setq gnus-newsgroup-unselected
- (gnus-set-difference gnus-newsgroup-unreads articles))
- ))
- ))
- ;; Get headers list.
- (setq gnus-newsgroup-headers (gnus-retrieve-headers articles))
- ;; UNREADS may contain expired articles, so we have to remove
- ;; them from the list.
- (setq gnus-newsgroup-unreads
- (gnus-intersection gnus-newsgroup-unreads
- (mapcar
- (function
- (lambda (header)
- (nntp-header-number header)))
- gnus-newsgroup-headers)))
- ;; Marked article must be a subset of unread articles.
- (setq gnus-newsgroup-marked
- (gnus-intersection (append gnus-newsgroup-unselected
- gnus-newsgroup-unreads)
- (cdr
- (gnus-gethash group gnus-marked-hashtb))))
- ;; First and last article in this newsgroup.
- (setq gnus-newsgroup-begin
- (if gnus-newsgroup-headers
- (nntp-header-number (car gnus-newsgroup-headers))
- 0
- ))
- (setq gnus-newsgroup-end
- (if gnus-newsgroup-headers
- (nntp-header-number
- (gnus-last-element gnus-newsgroup-headers))
- 0
- ))
- ;; File name that an article was saved last.
- (setq gnus-newsgroup-last-rmail nil)
- (setq gnus-newsgroup-last-mail nil)
- (setq gnus-newsgroup-last-folder nil)
- (setq gnus-newsgroup-last-file nil)
- ;; Reset article pointer etc.
- (setq gnus-current-article nil)
- (setq gnus-current-headers nil)
- (setq gnus-current-history nil)
- (setq gnus-have-all-headers nil)
- (setq gnus-last-article nil)
- ;; Clear old hash tables for the variable gnus-newsgroup-headers.
- (gnus-clear-hashtables-for-newsgroup-headers)
- ;; GROUP is successfully selected.
- t
- )
- ))
-
-;; Hacking for making header search much faster.
-
-(defun gnus-get-header-by-number (number)
- "Return a header specified by a NUMBER.
-If the variable gnus-newsgroup-headers is updated, the hashed table
-gnus-newsgroup-headers-hashtb-by-number must be set to nil to indicate
-rehash is necessary."
- (or gnus-newsgroup-headers-hashtb-by-number
- (gnus-make-headers-hashtable-by-number))
- (gnus-gethash (int-to-string number)
- gnus-newsgroup-headers-hashtb-by-number))
-
-(defun gnus-get-header-by-id (id)
- "Return a header specified by an ID.
-If the variable gnus-newsgroup-headers is updated, the hashed table
-gnus-newsgroup-headers-hashtb-by-id must be set to nil to indicate
-rehash is necessary."
- (or gnus-newsgroup-headers-hashtb-by-id
- (gnus-make-headers-hashtable-by-id))
- (and (stringp id)
- (gnus-gethash id gnus-newsgroup-headers-hashtb-by-id)))
-
-(defun gnus-make-headers-hashtable-by-number ()
- "Make hashtable for the variable gnus-newsgroup-headers by number."
- (let ((header nil)
- (headers gnus-newsgroup-headers))
- (setq gnus-newsgroup-headers-hashtb-by-number
- (gnus-make-hashtable (length headers)))
- (while headers
- (setq header (car headers))
- (gnus-sethash (int-to-string (nntp-header-number header))
- header gnus-newsgroup-headers-hashtb-by-number)
- (setq headers (cdr headers))
- )))
-
-(defun gnus-make-headers-hashtable-by-id ()
- "Make hashtable for the variable gnus-newsgroup-headers by id."
- (let ((header nil)
- (headers gnus-newsgroup-headers))
- (setq gnus-newsgroup-headers-hashtb-by-id
- (gnus-make-hashtable (length headers)))
- (while headers
- (setq header (car headers))
- (gnus-sethash (nntp-header-id header)
- header gnus-newsgroup-headers-hashtb-by-id)
- (setq headers (cdr headers))
- )))
-
-(defun gnus-clear-hashtables-for-newsgroup-headers ()
- "Clear hash tables created for the variable gnus-newsgroup-headers."
- (setq gnus-newsgroup-headers-hashtb-by-id nil)
- (setq gnus-newsgroup-headers-hashtb-by-number nil))
-
-(defun gnus-more-header-backward ()
- "Find new header backward."
- (let ((first
- (car (nth 2 (gnus-gethash gnus-newsgroup-name gnus-active-hashtb))))
- (artnum gnus-newsgroup-begin)
- (header nil))
- (while (and (not header)
- (> artnum first))
- (setq artnum (1- artnum))
- (setq header (car (gnus-retrieve-headers (list artnum)))))
- header
- ))
-
-(defun gnus-more-header-forward ()
- "Find new header forward."
- (let ((last
- (cdr (nth 2 (gnus-gethash gnus-newsgroup-name gnus-active-hashtb))))
- (artnum gnus-newsgroup-end)
- (header nil))
- (while (and (not header)
- (< artnum last))
- (setq artnum (1+ artnum))
- (setq header (car (gnus-retrieve-headers (list artnum)))))
- header
- ))
-
-(defun gnus-extend-newsgroup (header &optional backward)
- "Extend newsgroup selection with HEADER.
-Optional argument BACKWARD means extend toward backward."
- (if header
- (let ((artnum (nntp-header-number header)))
- (setq gnus-newsgroup-headers
- (if backward
- (cons header gnus-newsgroup-headers)
- (append gnus-newsgroup-headers (list header))))
- ;; Clear current hash tables for the variable gnus-newsgroup-headers.
- (gnus-clear-hashtables-for-newsgroup-headers)
- ;; We have to update unreads and unselected, but don't have to
- ;; care about gnus-newsgroup-marked.
- (if (memq artnum gnus-newsgroup-unselected)
- (setq gnus-newsgroup-unreads
- (cons artnum gnus-newsgroup-unreads)))
- (setq gnus-newsgroup-unselected
- (delq artnum gnus-newsgroup-unselected))
- (setq gnus-newsgroup-begin (min gnus-newsgroup-begin artnum))
- (setq gnus-newsgroup-end (max gnus-newsgroup-end artnum))
- )))
-
-(defun gnus-mark-article-as-read (article)
- "Remember that ARTICLE is marked as read."
- ;; Remove from unread and marked list.
- (setq gnus-newsgroup-unreads
- (delq article gnus-newsgroup-unreads))
- (setq gnus-newsgroup-marked
- (delq article gnus-newsgroup-marked)))
-
-(defun gnus-mark-article-as-unread (article &optional clear-mark)
- "Remember that ARTICLE is marked as unread.
-Optional argument CLEAR-MARK means ARTICLE should not be remembered
-that it was marked as read once."
- ;; Add to unread list.
- (or (memq article gnus-newsgroup-unreads)
- (setq gnus-newsgroup-unreads
- (cons article gnus-newsgroup-unreads)))
- ;; If CLEAR-MARK is non-nil, the article must be removed from marked
- ;; list. Otherwise, it must be added to the list.
- (if clear-mark
- (setq gnus-newsgroup-marked
- (delq article gnus-newsgroup-marked))
- (or (memq article gnus-newsgroup-marked)
- (setq gnus-newsgroup-marked
- (cons article gnus-newsgroup-marked)))))
-
-(defun gnus-clear-system ()
- "Clear all variables and buffer."
- ;; Clear GNUS variables.
- (let ((variables gnus-variable-list))
- (while variables
- (set (car variables) nil)
- (setq variables (cdr variables))))
- ;; Clear other internal variables.
- (setq gnus-newsrc-hashtb nil)
- (setq gnus-marked-hashtb nil)
- (setq gnus-killed-hashtb nil)
- (setq gnus-active-hashtb nil)
- (setq gnus-octive-hashtb nil)
- (setq gnus-unread-hashtb nil)
- (setq gnus-newsgroup-headers nil)
- (setq gnus-newsgroup-headers-hashtb-by-id nil)
- (setq gnus-newsgroup-headers-hashtb-by-number nil)
- ;; 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)))
- (setq gnus-current-startup-file nil)
- ;; Kill GNUS buffers.
- (let ((buffers gnus-buffer-list))
- (while buffers
- (if (get-buffer (car buffers))
- (kill-buffer (car buffers)))
- (setq buffers (cdr buffers))
- )))
-
-(defun gnus-configure-windows (action)
- "Configure GNUS windows according to the next ACTION.
-The ACTION is either a symbol, such as `summary', or a
-configuration list such as `(1 1 2)'. If ACTION is not a list,
-configuration list is got from the variable gnus-window-configuration."
- (let* ((windows
- (if (listp action)
- action (car (cdr (assq action gnus-window-configuration)))))
- (grpwin (get-buffer-window gnus-group-buffer))
- (subwin (get-buffer-window gnus-summary-buffer))
- (artwin (get-buffer-window gnus-article-buffer))
- (winsum nil)
- (height nil)
- (grpheight 0)
- (subheight 0)
- (artheight 0))
- (if (or (null windows) ;No configuration is specified.
- (and (eq (null grpwin)
- (zerop (nth 0 windows)))
- (eq (null subwin)
- (zerop (nth 1 windows)))
- (eq (null artwin)
- (zerop (nth 2 windows)))))
- ;; No need to change window configuration.
- nil
- (select-window (or grpwin subwin artwin (selected-window)))
- ;; First of all, compute the height of each window.
- (cond (gnus-use-full-window
- ;; Take up the entire screen.
- (delete-other-windows)
- (setq height (window-height (selected-window))))
- (t
- (setq height (+ (if grpwin (window-height grpwin) 0)
- (if subwin (window-height subwin) 0)
- (if artwin (window-height artwin) 0)))))
- ;; The Newsgroup buffer exits always. So, use it to extend the
- ;; Group window so as to get enough window space.
- (switch-to-buffer gnus-group-buffer 'norecord)
- (and (get-buffer gnus-summary-buffer)
- (delete-windows-on gnus-summary-buffer))
- (and (get-buffer gnus-article-buffer)
- (delete-windows-on gnus-article-buffer))
- ;; Compute expected window height.
- (setq winsum (apply (function +) windows))
- (if (not (zerop (nth 0 windows)))
- (setq grpheight (max window-min-height
- (/ (* height (nth 0 windows)) winsum))))
- (if (not (zerop (nth 1 windows)))
- (setq subheight (max window-min-height
- (/ (* height (nth 1 windows)) winsum))))
- (if (not (zerop (nth 2 windows)))
- (setq artheight (max window-min-height
- (/ (* height (nth 2 windows)) winsum))))
- (setq height (+ grpheight subheight artheight))
- (enlarge-window (max 0 (- height (window-height (selected-window)))))
- ;; Then split the window.
- (and (not (zerop artheight))
- (or (not (zerop grpheight))
- (not (zerop subheight)))
- (split-window-vertically (+ grpheight subheight)))
- (and (not (zerop grpheight))
- (not (zerop subheight))
- (split-window-vertically grpheight))
- ;; Then select buffers in each window.
- (and (not (zerop grpheight))
- (progn
- (switch-to-buffer gnus-group-buffer 'norecord)
- (other-window 1)))
- (and (not (zerop subheight))
- (progn
- (switch-to-buffer gnus-summary-buffer 'norecord)
- (other-window 1)))
- (and (not (zerop artheight))
- (progn
- ;; If Article buffer does not exist, it will be created
- ;; and initialized.
- (gnus-article-setup-buffer)
- (switch-to-buffer gnus-article-buffer 'norecord)))
- )
- ))
-
-(defun gnus-find-header-by-number (headers number)
- "Return a header which is a element of HEADERS and has NUMBER."
- (let ((found nil))
- (while (and headers (not found))
- ;; We cannot use `=' to accept non-numeric NUMBER.
- (if (eq number (nntp-header-number (car headers)))
- (setq found (car headers)))
- (setq headers (cdr headers)))
- found
- ))
-
-(defun gnus-find-header-by-id (headers id)
- "Return a header which is a element of HEADERS and has Message-ID."
- (let ((found nil))
- (while (and headers (not found))
- (if (string-equal id (nntp-header-id (car headers)))
- (setq found (car headers)))
- (setq headers (cdr headers)))
- found
- ))
-
-(defun gnus-version ()
- "Version numbers of this version of GNUS."
- (interactive)
- (cond ((and (boundp 'mhspool-version) (boundp 'nnspool-version))
- (message "%s; %s; %s; %s"
- gnus-version nntp-version nnspool-version mhspool-version))
- ((boundp 'mhspool-version)
- (message "%s; %s; %s"
- gnus-version nntp-version mhspool-version))
- ((boundp 'nnspool-version)
- (message "%s; %s; %s"
- gnus-version nntp-version nnspool-version))
- (t
- (message "%s; %s" gnus-version nntp-version))))
-
-(defun gnus-info-find-node ()
- "Find Info documentation of GNUS."
- (interactive)
- (require 'info)
- ;; Enlarge info window if needed.
- (cond ((eq major-mode 'gnus-group-mode)
- (gnus-configure-windows '(1 0 0)) ;Take all windows.
- (pop-to-buffer gnus-group-buffer))
- ((eq major-mode 'gnus-summary-mode)
- (gnus-configure-windows '(0 1 0)) ;Take all windows.
- (pop-to-buffer gnus-summary-buffer)))
- (Info-goto-node (car (cdr (assq major-mode gnus-info-nodes)))))
-
-(defun gnus-overload-functions (&optional overloads)
- "Overload functions specified by optional argument OVERLOADS.
-If nothing is specified, use the variable gnus-overload-functions."
- (let ((defs nil)
- (overloads (or overloads gnus-overload-functions)))
- (while overloads
- (setq defs (car overloads))
- (setq overloads (cdr overloads))
- ;; Load file before overloading function if necessary. Make
- ;; sure we cannot use `require' always.
- (and (not (fboundp (car defs)))
- (car (cdr (cdr defs)))
- (load (car (cdr (cdr defs))) nil 'nomessage))
- (fset (car defs) (car (cdr defs)))
- )))
-
-(defun gnus-make-threads (newsgroup-headers)
- "Make conversation threads tree from NEWSGROUP-HEADERS."
- (let ((headers newsgroup-headers)
- (refer nil)
- (h nil)
- (d nil)
- (roots nil)
- (dependencies nil))
- ;; Make message dependency alist.
- (while headers
- (setq h (car headers))
- (setq headers (cdr headers))
- ;; Ignore invalid headers.
- (if (vectorp h) ;Depends on nntp.el.
- (progn
- ;; Ignore broken references, e.g "<123@a.b.c".
- (setq refer (nntp-header-references h))
- (setq d (and refer
- (string-match "\\(<[^<>]+>\\)[^>]*$" refer)
-;; (gnus-find-header-by-id
-;; newsgroup-headers
-;; (substring refer (match-beginning 1) (match-end 1)))
- ;; In fact if the variable newsgroup-headers
- ;; is not 'equal' to the variable
- ;; gnus-newsgroup-headers, the following
- ;; function call may return bogus value.
- (gnus-get-header-by-id
- (substring refer (match-beginning 1) (match-end 1)))
- ))
- ;; Check subject equality.
- (or gnus-thread-ignore-subject
- (null d)
- (string-equal (gnus-simplify-subject
- (nntp-header-subject h) 're)
- (gnus-simplify-subject
- (nntp-header-subject d) 're))
- ;; H should be a thread root.
- (setq d nil))
- ;; H depends on D.
- (setq dependencies
- (cons (cons h d) dependencies))
- ;; H is a thread root.
- (if (null d)
- (setq roots (cons h roots)))
- ))
- )
- ;; Make complete threads from the roots.
- ;; Note: dependencies are in reverse order, but
- ;; gnus-make-threads-1 processes it in reverse order again. So,
- ;; we don't have to worry about it.
- (mapcar
- (function
- (lambda (root)
- (gnus-make-threads-1 root dependencies))) (nreverse roots))
- ))
-
-(defun gnus-make-threads-1 (parent dependencies)
- (let ((children nil)
- (d nil)
- (depends dependencies))
- ;; Find children.
- (while depends
- (setq d (car depends))
- (setq depends (cdr depends))
- (and (cdr d)
- (eq (nntp-header-id parent) (nntp-header-id (cdr d)))
- (setq children (cons (car d) children))))
- ;; Go down.
- (cons parent
- (mapcar
- (function
- (lambda (child)
- (gnus-make-threads-1 child dependencies))) children))
- ))
-
-(defun gnus-narrow-to-page (&optional arg)
- "Make text outside current page invisible except for page delimiter.
-A numeric arg specifies to move forward or backward by that many pages,
-thus showing a page other than the one point was originally in."
- (interactive "P")
- (setq arg (if arg (prefix-numeric-value arg) 0))
- (save-excursion
- (forward-page -1) ;Beginning of current page.
- (widen)
- (if (> arg 0)
- (forward-page arg)
- (if (< arg 0)
- (forward-page (1- arg))))
- ;; Find the end of the page.
- (forward-page)
- ;; If we stopped due to end of buffer, stay there.
- ;; If we stopped after a page delimiter, put end of restriction
- ;; at the beginning of that line.
- ;; These are commented out.
- ;; (if (save-excursion (beginning-of-line)
- ;; (looking-at page-delimiter))
- ;; (beginning-of-line))
- (narrow-to-region (point)
- (progn
- ;; Find the top of the page.
- (forward-page -1)
- ;; If we found beginning of buffer, stay there.
- ;; If extra text follows page delimiter on same line,
- ;; include it.
- ;; Otherwise, show text starting with following line.
- (if (and (eolp) (not (bobp)))
- (forward-line 1))
- (point)))
- ))
-
-;; Create hash table for alist, such as gnus-newsrc-assoc,
-;; gnus-killed-assoc, and gnus-marked-assoc.
-
-(defun gnus-make-hashtable-from-alist (alist &optional hashsize)
- "Return hash table for ALIST.
-Optional argument HASHSIZE specifies the hashtable size.
-Hash key is a car of alist element, which must be a string."
- (let ((hashtb (gnus-make-hashtable (or hashsize (length alist)))))
- (while alist
- (gnus-sethash (car (car alist)) ;Newsgroup name
- (car alist) ;Alist element
- hashtb)
- (setq alist (cdr alist)))
- hashtb
- ))
-
-(defun gnus-last-element (list)
- "Return last element of LIST."
- (let ((last nil))
- (while list
- (if (null (cdr list))
- (setq last (car list)))
- (setq list (cdr list)))
- last
- ))
-
-(defun gnus-set-difference (list1 list2)
- "Return a list of elements of LIST1 that do not appear in LIST2."
- (let ((list1 (copy-sequence list1)))
- (while list2
- (setq list1 (delq (car list2) list1))
- (setq list2 (cdr list2)))
- list1
- ))
-
-(defun gnus-intersection (list1 list2)
- "Return a list of elements that appear in both LIST1 and LIST2."
- (let ((result nil))
- (while list2
- (if (memq (car list2) list1)
- (setq result (cons (car list2) result)))
- (setq list2 (cdr list2)))
- result
- ))
-
-\f
-;;;
-;;; Get information about active articles, already read articles, and
-;;; still unread articles.
-;;;
-
-;; GNUS internal format of gnus-newsrc-assoc and gnus-killed-assoc:
-;; (("general" t (1 . 1))
-;; ("misc" t (1 . 10) (12 . 15))
-;; ("test" nil (1 . 99)) ...)
-;; GNUS internal format of gnus-marked-assoc:
-;; (("general" 1 2 3)
-;; ("misc" 2) ...)
-;; GNUS internal format of gnus-active-hashtb:
-;; (("general" t (1 . 1))
-;; ("misc" t (1 . 10))
-;; ("test" nil (1 . 99)) ...)
-;; GNUS internal format of gnus-unread-hashtb:
-;; (("general" 1 (1 . 1))
-;; ("misc" 14 (1 . 10) (12 . 15))
-;; ("test" 99 (1 . 99)) ...)
-
-(defun gnus-setup-news (&optional rawfile)
- "Setup news information.
-If optional argument RAWFILE is non-nil, force to read raw startup file."
- (let ((init (not (and gnus-newsrc-assoc
- gnus-active-hashtb
- gnus-unread-hashtb
- (not rawfile)
- ))))
- ;; We have to clear some variables to re-initialize news info.
- (if init
- (setq gnus-newsrc-assoc nil
- gnus-active-hashtb nil
- gnus-unread-hashtb nil))
- (gnus-read-active-file)
- ;; Initialize only once.
- (if init
- (progn
- ;; Get distributions only once.
- (gnus-read-distributions-file)
- ;; newsrc file must be read after reading active file since
- ;; its size is used to guess the size of gnus-newsrc-hashtb.
- (gnus-read-newsrc-file rawfile)
- ))
- (gnus-expire-marked-articles)
- (gnus-get-unread-articles)
- ;; Check new newsgroups and subscribe them.
- (if init
- (let ((new-newsgroups (gnus-find-new-newsgroups)))
- (while new-newsgroups
- (funcall gnus-subscribe-newsgroup-method (car new-newsgroups))
- (setq new-newsgroups (cdr new-newsgroups))
- )))
- ))
-
-(defun gnus-add-newsgroup (newsgroup)
- "Subscribe new NEWSGROUP safely and put it at top."
- (and (null (gnus-gethash newsgroup gnus-newsrc-hashtb)) ;Really new?
- (gnus-gethash newsgroup gnus-active-hashtb) ;Really exist?
- (gnus-insert-newsgroup (or (gnus-gethash newsgroup gnus-killed-hashtb)
- (list newsgroup t))
- (car (car gnus-newsrc-assoc)))))
-
-(defun gnus-find-new-newsgroups ()
- "Looking for new newsgroups and return names.
-`-n' option of options line in .newsrc file is recognized."
- (let ((group nil)
- (new-newsgroups nil))
- (mapatoms
- (function
- (lambda (sym)
- (setq group (symbol-name sym))
- ;; Taking account of `-n' option.
- (and (or (null gnus-newsrc-options-n-no)
- (not (string-match gnus-newsrc-options-n-no group))
- (and gnus-newsrc-options-n-yes
- (string-match gnus-newsrc-options-n-yes group)))
- (null (gnus-gethash group gnus-killed-hashtb)) ;Ignore killed.
- (null (gnus-gethash group gnus-newsrc-hashtb)) ;Really new.
- ;; Find new newsgroup.
- (setq new-newsgroups
- (cons group new-newsgroups)))
- ))
- gnus-active-hashtb)
- ;; Return new newsgroups.
- new-newsgroups
- ))
-
-(defun gnus-kill-newsgroup (group)
- "Kill GROUP from gnus-newsrc-assoc, .newsrc and gnus-unread-hashtb."
- (let ((info (gnus-gethash group gnus-newsrc-hashtb)))
- (if (null info)
- nil
- ;; Delete from gnus-newsrc-assoc and gnus-newsrc-hashtb.
- (setq gnus-newsrc-assoc (delq info gnus-newsrc-assoc))
- (gnus-sethash group nil gnus-newsrc-hashtb)
- ;; Add to gnus-killed-assoc and gnus-killed-hashtb.
- (setq gnus-killed-assoc
- (cons info
- (delq (gnus-gethash group gnus-killed-hashtb)
- gnus-killed-assoc)))
- (gnus-sethash group info gnus-killed-hashtb)
- ;; Clear unread hashtable.
- ;; Thanks cwitty@csli.Stanford.EDU (Carl Witty).
- (gnus-sethash group nil gnus-unread-hashtb)
- ;; Then delete from .newsrc
- (gnus-update-newsrc-buffer group 'delete)
- ;; Return the deleted newsrc entry.
- info
- )))
-
-(defun gnus-insert-newsgroup (info &optional next)
- "Insert newsrc INFO entry before NEXT.
-If optional argument NEXT is nil, appended to the last."
- (if (null info)
- (error "Invalid argument: %s" info))
- (let* ((group (car info)) ;Newsgroup name.
- (range
- (gnus-difference-of-range
- (nth 2 (gnus-gethash group gnus-active-hashtb)) (nthcdr 2 info))))
- ;; Check duplication.
- (if (gnus-gethash group gnus-newsrc-hashtb)
- (error "Duplicated: %s" group))
- ;; Insert to gnus-newsrc-assoc and gnus-newsrc-hashtb.
- (if (string-equal next (car (car gnus-newsrc-assoc)))
- (setq gnus-newsrc-assoc
- (cons info gnus-newsrc-assoc))
- (let ((found nil)
- (rest (cdr gnus-newsrc-assoc))
- (tail gnus-newsrc-assoc))
- ;; Seach insertion point.
- (while (and (not found) rest)
- (if (string-equal next (car (car rest)))
- (setq found t)
- (setq rest (cdr rest))
- (setq tail (cdr tail))
- ))
- ;; Find it.
- (if (consp tail)
- (setcdr tail (cons info rest))
- ;; gnus-newsrc-assoc must be nil.
- (setq gnus-newsrc-assoc
- (append gnus-newsrc-assoc (cons info rest))))
- ))
- (gnus-sethash group info gnus-newsrc-hashtb)
- ;; Delete from gnus-killed-assoc and gnus-killed-hashtb.
- (setq gnus-killed-assoc
- (delq (gnus-gethash group gnus-killed-hashtb) gnus-killed-assoc))
- (gnus-sethash group nil gnus-killed-hashtb)
- ;; Then insert to .newsrc.
- (gnus-update-newsrc-buffer group nil next)
- ;; Add to gnus-unread-hashtb.
- (gnus-sethash group
- (cons group ;Newsgroup name.
- (cons (gnus-number-of-articles range) range))
- gnus-unread-hashtb)
- ))
-
-(defun gnus-check-killed-newsgroups ()
- "Check consistency between gnus-newsrc-assoc and gnus-killed-assoc.
-gnus-killed-hashtb is also updated."
- (let ((group nil)
- (new-killed nil)
- (old-killed gnus-killed-assoc))
- (while old-killed
- (setq group (car (car old-killed)))
- (and (or (null gnus-newsrc-options-n-no)
- (not (string-match gnus-newsrc-options-n-no group))
- (and gnus-newsrc-options-n-yes
- (string-match gnus-newsrc-options-n-yes group)))
- (null (gnus-gethash group gnus-newsrc-hashtb)) ;No duplication.
- ;; Subscribed in options line and not in gnus-newsrc-assoc.
- (setq new-killed
- (cons (car old-killed) new-killed)))
- (setq old-killed (cdr old-killed))
- )
- (setq gnus-killed-assoc (nreverse new-killed))
- (setq gnus-killed-hashtb
- (gnus-make-hashtable-from-alist gnus-killed-assoc))
- ))
-
-(defun gnus-check-bogus-newsgroups (&optional confirm)
- "Delete bogus newsgroups.
-If optional argument CONFIRM is non-nil, confirm deletion of newsgroups."
- (let ((group nil) ;Newsgroup name temporary used.
- (old-newsrc gnus-newsrc-assoc)
- (new-newsrc nil)
- (bogus nil) ;List of bogus newsgroups.
- (old-killed gnus-killed-assoc)
- (new-killed nil)
- (old-marked gnus-marked-assoc)
- (new-marked nil))
- (message "Checking bogus newsgroups...")
- ;; Update gnus-newsrc-assoc and gnus-newsrc-hashtb.
- (while old-newsrc
- (setq group (car (car old-newsrc)))
- (if (or (gnus-gethash group gnus-active-hashtb)
- (and confirm
- (not (y-or-n-p
- (format "Delete bogus newsgroup: %s " group)))))
- ;; Active newsgroup.
- (setq new-newsrc (cons (car old-newsrc) new-newsrc))
- ;; Found a bogus newsgroup.
- (setq bogus (cons group bogus)))
- (setq old-newsrc (cdr old-newsrc))
- )
- (setq gnus-newsrc-assoc (nreverse new-newsrc))
- (setq gnus-newsrc-hashtb
- (gnus-make-hashtable-from-alist gnus-newsrc-assoc))
- ;; Update gnus-killed-assoc and gnus-killed-hashtb.
- ;; The killed newsgroups are deleted without any confirmations.
- (while old-killed
- (setq group (car (car old-killed)))
- (and (gnus-gethash group gnus-active-hashtb)
- (null (gnus-gethash group gnus-newsrc-hashtb))
- ;; Active and really killed newsgroup.
- (setq new-killed (cons (car old-killed) new-killed)))
- (setq old-killed (cdr old-killed))
- )
- (setq gnus-killed-assoc (nreverse new-killed))
- (setq gnus-killed-hashtb
- (gnus-make-hashtable-from-alist gnus-killed-assoc))
- ;; Remove BOGUS from .newsrc file.
- (while bogus
- (gnus-update-newsrc-buffer (car bogus) 'delete)
- (setq bogus (cdr bogus)))
- ;; Update gnus-marked-assoc and gnus-marked-hashtb.
- (while old-marked
- (setq group (car (car old-marked)))
- (if (and (cdr (car old-marked)) ;Non-empty?
- (gnus-gethash group gnus-newsrc-hashtb)) ;Not bogus?
- (setq new-marked (cons (car old-marked) new-marked)))
- (setq old-marked (cdr old-marked)))
- (setq gnus-marked-assoc new-marked)
- (setq gnus-marked-hashtb
- (gnus-make-hashtable-from-alist gnus-marked-assoc))
- (message "Checking bogus newsgroups... done")
- ))
-
-(defun gnus-get-unread-articles ()
- "Compute diffs between active and read articles."
- (let ((read gnus-newsrc-assoc)
- (group-info nil)
- (group-name nil)
- (active nil)
- (range nil))
- (message "Checking new news...")
- (or gnus-unread-hashtb
- (setq gnus-unread-hashtb
- (gnus-make-hashtable (length gnus-active-hashtb))))
- (while read
- (setq group-info (car read)) ;About one newsgroup
- (setq group-name (car group-info))
- (setq active (nth 2 (gnus-gethash group-name gnus-active-hashtb)))
- (if (and gnus-octive-hashtb
- ;; Is nothing changed?
- (equal active
- (nth 2 (gnus-gethash group-name gnus-octive-hashtb)))
- ;; Is this newsgroup in the unread hash table?
- (gnus-gethash group-name gnus-unread-hashtb)
- )
- nil ;Nothing to do.
- (setq range (gnus-difference-of-range active (nthcdr 2 group-info)))
- (gnus-sethash group-name
- (cons group-name ;Group name
- (cons (gnus-number-of-articles range)
- range)) ;Range of unread articles
- gnus-unread-hashtb)
- )
- (setq read (cdr read))
- )
- (message "Checking new news... done")
- ))
-
-(defun gnus-expire-marked-articles ()
- "Check expired article which is marked as unread."
- (let ((marked-assoc gnus-marked-assoc)
- (updated-assoc nil)
- (marked nil) ;Current marked info.
- (articles nil) ;List of marked articles.
- (updated nil) ;List of real marked.
- (begin nil))
- (while marked-assoc
- (setq marked (car marked-assoc))
- (setq articles (cdr marked))
- (setq updated nil)
- (setq begin
- (car (nth 2 (gnus-gethash (car marked) gnus-active-hashtb))))
- (while (and begin articles)
- (if (>= (car articles) begin)
- ;; This article is still active.
- (setq updated (cons (car articles) updated)))
- (setq articles (cdr articles)))
- (if updated
- (setq updated-assoc
- (cons (cons (car marked) updated) updated-assoc)))
- (setq marked-assoc (cdr marked-assoc)))
- (setq gnus-marked-assoc updated-assoc)
- (setq gnus-marked-hashtb
- (gnus-make-hashtable-from-alist gnus-marked-assoc))
- ))
-
-(defun gnus-mark-as-read-by-xref
- (group headers unreads &optional subscribed-only)
- "Mark articles as read using cross references and return updated newsgroups.
-Arguments are GROUP, HEADERS, UNREADS, and optional SUBSCRIBED-ONLY."
- (let ((xref-list nil)
- (header nil)
- (xrefs nil) ;One Xref: field info.
- (xref nil) ;(NEWSGROUP . ARTICLE)
- (gname nil) ;Newsgroup name
- (article nil)) ;Article number
- (while headers
- (setq header (car headers))
- (if (memq (nntp-header-number header) unreads)
- ;; This article is not yet marked as read.
- nil
- (setq xrefs (gnus-parse-xref-field (nntp-header-xref header)))
- ;; For each cross reference info. in one Xref: field.
- (while xrefs
- (setq xref (car xrefs))
- (setq gname (car xref)) ;Newsgroup name
- (setq article (cdr xref)) ;Article number
- (or (string-equal group gname) ;Ignore current newsgroup.
- ;; Ignore unsubscribed newsgroup if requested.
- (and subscribed-only
- (not (nth 1 (gnus-gethash gname gnus-newsrc-hashtb))))
- ;; Ignore article marked as unread.
- (memq article (cdr (gnus-gethash gname gnus-marked-hashtb)))
- (let ((group-xref (assoc gname xref-list)))
- (if group-xref
- (if (memq article (cdr group-xref))
- nil ;Alread marked.
- (setcdr group-xref (cons article (cdr group-xref))))
- ;; Create new assoc entry for GROUP.
- (setq xref-list (cons (list gname article) xref-list)))
- ))
- (setq xrefs (cdr xrefs))
- ))
- (setq headers (cdr headers)))
- ;; Mark cross referenced articles as read.
- (gnus-mark-xrefed-as-read xref-list)
- ;;(message "%s %s" (prin1-to-string unreads) (prin1-to-string xref-list))
- ;; Return list of updated group name.
- (mapcar (function car) xref-list)
- ))
-
-(defun gnus-parse-xref-field (xref-value)
- "Parse Xref: field value, and return list of `(group . article-id)'."
- (let ((xref-list nil)
- (xref-value (or xref-value "")))
- ;; Remove server host name.
- (if (string-match "^[ \t]*[^ \t,]+[ \t,]+\\(.*\\)$" xref-value)
- (setq xref-value (substring xref-value (match-beginning 1)))
- (setq xref-value nil))
- ;; Process each xref info.
- (while xref-value
- (if (string-match
- "^[ \t,]*\\([^ \t,]+\\):\\([0-9]+\\)[^0-9]*" xref-value)
- (progn
- (setq xref-list
- (cons
- (cons
- ;; Group name
- (substring xref-value (match-beginning 1) (match-end 1))
- ;; Article-ID
- (string-to-int
- (substring xref-value (match-beginning 2) (match-end 2))))
- xref-list))
- (setq xref-value (substring xref-value (match-end 2))))
- (setq xref-value nil)))
- ;; Return alist.
- xref-list
- ))
-
-(defun gnus-mark-xrefed-as-read (xrefs)
- "Update unread article information using XREFS alist."
- (let ((group nil)
- (idlist nil)
- (unread nil))
- (while xrefs
- (setq group (car (car xrefs)))
- (setq idlist (cdr (car xrefs)))
- (setq unread (gnus-uncompress-sequence
- (nthcdr 2 (gnus-gethash group gnus-unread-hashtb))))
- (while idlist
- (setq unread (delq (car idlist) unread))
- (setq idlist (cdr idlist)))
- (gnus-update-unread-articles group unread 'ignore)
- (setq xrefs (cdr xrefs))
- )))
-
-(defun gnus-update-unread-articles (group unread-list marked-list)
- "Update unread articles of GROUP using UNREAD-LIST and MARKED-LIST."
- (let ((active (nth 2 (gnus-gethash group gnus-active-hashtb)))
- (unread (gnus-gethash group gnus-unread-hashtb)))
- (if (or (null active) (null unread))
- ;; Ignore unknown newsgroup.
- nil
- ;; Update gnus-unread-hashtb.
- (if unread-list
- (setcdr (cdr unread)
- (gnus-compress-sequence unread-list))
- ;; All of the articles are read.
- (setcdr (cdr unread) '((0 . 0))))
- ;; Number of unread articles.
- (setcar (cdr unread)
- (gnus-number-of-articles (nthcdr 2 unread)))
- ;; Update gnus-newsrc-assoc.
- (if (> (car active) 0)
- ;; Articles from 1 to N are not active.
- (setq active (cons 1 (cdr active))))
- (setcdr (cdr (gnus-gethash group gnus-newsrc-hashtb))
- (gnus-difference-of-range active (nthcdr 2 unread)))
- ;; Update .newsrc buffer.
- (gnus-update-newsrc-buffer group)
- ;; Update gnus-marked-assoc.
- (if (listp marked-list) ;Includes NIL.
- (let ((marked (gnus-gethash group gnus-marked-hashtb)))
- (cond (marked ;There is an entry.
- (setcdr marked marked-list))
- (marked-list ;Non-NIL.
- (let ((info (cons group marked-list)))
- ;; hashtb must share the same cons cell.
- (setq gnus-marked-assoc
- (cons info gnus-marked-assoc))
- (gnus-sethash group info gnus-marked-hashtb)
- ))
- )))
- )))
-
-(defun gnus-read-active-file ()
- "Get active file from NNTP server."
- ;; Make sure a connection to NNTP server is alive.
- (gnus-start-news-server)
- (message "Reading active file...")
- (if (gnus-request-list) ;Get active file from server
- (save-excursion
- (set-buffer nntp-server-buffer)
- (gnus-active-to-gnus-format)
- (message "Reading active file... done"))
- (error "Cannot read active file from NNTP server.")))
-
-(defun gnus-active-to-gnus-format ()
- "Convert active file format to internal format.
-Lines matching gnus-ignored-newsgroups are ignored."
- ;; Delete unnecessary lines.
- (goto-char (point-min))
- ;;(delete-matching-lines "^to\\..*$")
- (delete-matching-lines gnus-ignored-newsgroups)
- ;; Save OLD active info.
- (setq gnus-octive-hashtb gnus-active-hashtb)
- ;; Make large enough hash table.
- (setq gnus-active-hashtb
- (gnus-make-hashtable (count-lines (point-min) (point-max))))
- ;; Store active file in hashtable.
- (goto-char (point-min))
- (while
- (re-search-forward
- "^\\([^ \t]+\\)[ \t]+\\([0-9]+\\)[ \t]+\\([0-9]+\\)[ \t]+\\([ymn]\\).*$"
- nil t)
- (gnus-sethash
- (buffer-substring (match-beginning 1) (match-end 1))
- (list (buffer-substring (match-beginning 1) (match-end 1))
- (string-equal
- "y" (buffer-substring (match-beginning 4) (match-end 4)))
- (cons (string-to-int
- (buffer-substring (match-beginning 3) (match-end 3)))
- (string-to-int
- (buffer-substring (match-beginning 2) (match-end 2)))))
- gnus-active-hashtb)
- ))
-
-(defun gnus-read-newsrc-file (&optional rawfile)
- "Read startup FILE.
-If optional argument RAWFILE is non-nil, the raw startup file is read."
- (setq gnus-current-startup-file (gnus-make-newsrc-file gnus-startup-file))
- ;; Reset variables which may be included in the quick startup 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"))
- (quick-loaded nil))
- (save-excursion
- ;; Prepare .newsrc buffer.
- (set-buffer (find-file-noselect newsrc-file))
- ;; It is not so good idea turning off undo.
- ;;(buffer-flush-undo (current-buffer))
- ;; Load quick .newsrc to restore gnus-marked-assoc and
- ;; gnus-killed-assoc even if gnus-newsrc-assoc is out of date.
- (condition-case nil
- (progn
- (setq quick-loaded (load quick-file t t t))
- ;; Recreate hashtables.
- (setq gnus-killed-hashtb
- (gnus-make-hashtable-from-alist gnus-killed-assoc))
- (setq gnus-marked-hashtb
- (gnus-make-hashtable-from-alist gnus-marked-assoc))
- )
- (error nil))
- (cond ((and (not rawfile) ;Not forced to read the raw file.
- ;; .newsrc.el is newer than .newsrc.
- ;; Do it this way in case timestamps are identical
- ;; (on fast machines/disks).
- (not (file-newer-than-file-p newsrc-file quick-file))
- quick-loaded
- gnus-newsrc-assoc ;Really loaded?
- )
- ;; We don't have to read the raw startup file.
- ;; gnus-newsrc-assoc may be defined in the quick startup file.
- ;; So, we have to define the hashtable here.
- (setq gnus-newsrc-hashtb
- (gnus-make-hashtable-from-alist gnus-newsrc-assoc)))
- (t
- ;; Since .newsrc file is newer than quick file, read it.
- (message "Reading %s..." newsrc-file)
- (gnus-newsrc-to-gnus-format)
- (gnus-check-killed-newsgroups)
- (message "Reading %s... Done" newsrc-file)))
- )))
-
-(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 "-" gnus-nntp-server)))
- (if (file-exists-p real-file)
- real-file file)
- ))
-
-(defun gnus-newsrc-to-gnus-format ()
- "Parse current buffer as .newsrc file."
- (let ((newsgroup nil)
- (subscribe nil)
- (ranges nil)
- (subrange nil)
- (read-list nil))
- ;; We have to re-initialize these variable (except for
- ;; gnus-marked-assoc and gnus-killed-assoc) because quick startup
- ;; file may contain bogus values.
- (setq gnus-newsrc-options nil)
- (setq gnus-newsrc-options-n-yes nil)
- (setq gnus-newsrc-options-n-no nil)
- (setq gnus-newsrc-assoc nil)
- ;; Make large enough hash table.
- (setq gnus-newsrc-hashtb
- (gnus-make-hashtable
- (max (length gnus-active-hashtb)
- (count-lines (point-min) (point-max)))))
- ;; Save options line to variable.
- ;; Lines beginning with white spaces are treated as continuation
- ;; line. Refer man page of newsrc(5).
- (goto-char (point-min))
- (if (re-search-forward
- "^[ \t]*options[ \t]*\\(.*\\(\n[ \t]+.*\\)*\\)[ \t]*$" nil t)
- (progn
- ;; Save entire options line.
- (setq gnus-newsrc-options
- (buffer-substring (match-beginning 1) (match-end 1)))
- ;; Compile "-n" option.
- (if (string-match "\\(^\\|[ \t\n]\\)-n" gnus-newsrc-options)
- (let ((yes-and-no
- (gnus-parse-n-options
- (substring gnus-newsrc-options (match-end 0)))))
- (setq gnus-newsrc-options-n-yes (car yes-and-no))
- (setq gnus-newsrc-options-n-no (cdr yes-and-no))
- ))
- ))
- ;; Parse body of .newsrc file
- ;; Options line continuation lines must be also considered here.
- ;; Before supporting continuation lines, " newsgroup ! 1-5" was
- ;; okay, but now it is invalid. It should be "newsgroup! 1-5".
- (goto-char (point-min))
- ;; Due to overflows in regex.c, change the following regexp:
- ;; "^\\([^:! \t\n]+\\)\\([:!]\\)[ \t]*\\(.*\\)$"
- ;; Suggested by composer@bucsf.bu.edu (Jeff Kellem)
- ;; but no longer viable because of extensive backtracking in Emacs 19:
- ;; "^\\([^:! \t\n]+\\)\\([:!]\\)[ \t]*\\(\\(...\\)*.*\\)$" nil t)
- (while (re-search-forward
- "^\\([^:! \t\n]+\\)\\([:!]\\)[ \t]*\\(\\|[^ \t\n].*\\)$" nil t)
- (setq newsgroup (buffer-substring (match-beginning 1) (match-end 1)))
- ;; Check duplications of newsgroups.
- ;; Note: Checking the duplications takes very long time.
- (if (gnus-gethash newsgroup gnus-newsrc-hashtb)
- (message "Ignore duplicated newsgroup: %s" newsgroup)
- (setq subscribe
- (string-equal
- ":" (buffer-substring (match-beginning 2) (match-end 2))))
- (setq ranges (buffer-substring (match-beginning 3) (match-end 3)))
- (setq read-list nil)
- (while (string-match "^[, \t]*\\([0-9-]+\\)" ranges)
- (setq subrange (substring ranges (match-beginning 1) (match-end 1)))
- (setq ranges (substring ranges (match-end 1)))
- (cond ((string-match "^\\([0-9]+\\)-\\([0-9]+\\)$" subrange)
- (setq read-list
- (cons
- (cons (string-to-int
- (substring subrange
- (match-beginning 1) (match-end 1)))
- (string-to-int
- (substring subrange
- (match-beginning 2) (match-end 2))))
- read-list)))
- ((string-match "^[0-9]+$" subrange)
- (setq read-list
- (cons (cons (string-to-int subrange)
- (string-to-int subrange))
- read-list)))
- (t
- (ding) (message "Ignoring bogus lines of %s" newsgroup)
- (sit-for 0))
- ))
- (setq gnus-newsrc-assoc
- (cons (cons newsgroup (cons subscribe (nreverse read-list)))
- gnus-newsrc-assoc))
- ;; Update gnus-newsrc-hashtb one by one.
- (gnus-sethash newsgroup (car gnus-newsrc-assoc) gnus-newsrc-hashtb)
- ))
- (setq gnus-newsrc-assoc (nreverse gnus-newsrc-assoc))
- ))
-
-(defun gnus-parse-n-options (options)
- "Parse -n NEWSGROUPS options and return a cons of YES and NO regexps."
- (let ((yes nil)
- (no nil)
- (yes-or-no nil) ;`!' or not.
- (newsgroup nil))
- ;; Parse each newsgroup description such as "comp.all". Commas
- ;; and white spaces can be a newsgroup separator.
- (while
- (string-match "^[ \t\n,]*\\(!?\\)\\([^--- \t\n,][^ \t\n,]*\\)" options)
- (setq yes-or-no
- (substring options (match-beginning 1) (match-end 1)))
- (setq newsgroup
- (regexp-quote
- (substring options
- (match-beginning 2) (match-end 2))))
- (setq options (substring options (match-end 2)))
- ;; Rewrite "all" to ".+" not ".*". ".+" requires at least one
- ;; character.
- (while (string-match "\\(^\\|\\\\[.]\\)all\\(\\\\[.]\\|$\\)" newsgroup)
- (setq newsgroup
- (concat (substring newsgroup 0 (match-end 1))
- ".+"
- (substring newsgroup (match-beginning 2)))))
- ;; It is yes or no.
- (cond ((string-equal yes-or-no "!")
- (setq no (cons newsgroup no)))
- ((string-equal newsgroup ".+")) ;Ignore `all'.
- (t
- (setq yes (cons newsgroup yes))))
- )
- ;; Make a cons of regexps from parsing result.
- ;; We have to append \(\.\|$\) to prevent matching substring of
- ;; newsgroup. For example, "jp.net" should not match with
- ;; "jp.network".
- ;; Fixes for large regexp problems are from yonezu@nak.math.keio.ac.jp.
- (cons (if yes
- (concat "^\\("
- (apply (function concat)
- (mapcar
- (function
- (lambda (newsgroup)
- (concat newsgroup "\\|")))
- (cdr yes)))
- (car yes) "\\)\\(\\.\\|$\\)"))
- (if no
- (concat "^\\("
- (apply (function concat)
- (mapcar
- (function
- (lambda (newsgroup)
- (concat newsgroup "\\|")))
- (cdr no)))
- (car no) "\\)\\(\\.\\|$\\)")))
- ))
-
-(defun gnus-save-newsrc-file ()
- "Save to .newsrc FILE."
- ;; Note: We cannot save .newsrc file if all newsgroups are removed
- ;; from the variable gnus-newsrc-assoc.
- (and (or gnus-newsrc-assoc gnus-killed-assoc)
- gnus-current-startup-file
- (save-excursion
- ;; A buffer containing .newsrc file may be deleted.
- (set-buffer (find-file-noselect gnus-current-startup-file))
- (if (not (buffer-modified-p))
- (message "(No changes need to be saved)")
- (message "Saving %s..." gnus-current-startup-file)
- (let ((make-backup-files t)
- (version-control nil)
- (require-final-newline t)) ;Don't ask even if requested.
- ;; Make backup file of master newsrc.
- ;; You can stop or change version control of backup file.
- ;; Suggested by jason@violet.berkeley.edu.
- (run-hooks 'gnus-save-newsrc-hook)
- (save-buffer))
- ;; Quickly loadable .newsrc.
- (set-buffer (get-buffer-create " *GNUS-newsrc*"))
- (buffer-flush-undo (current-buffer))
- (erase-buffer)
- (gnus-gnus-to-quick-newsrc-format)
- (let ((make-backup-files nil)
- (version-control nil)
- (require-final-newline t)) ;Don't ask even if requested.
- (write-file (concat gnus-current-startup-file ".el")))
- (kill-buffer (current-buffer))
- (message "Saving %s... Done" gnus-current-startup-file)
- ))
- ))
-
-(defun gnus-update-newsrc-buffer (group &optional delete next)
- "Incrementally update .newsrc buffer about GROUP.
-If optional 1st argument DELETE is non-nil, delete the group.
-If optional 2nd argument NEXT is non-nil, inserted before it."
- (save-excursion
- ;; Taking account of the killed startup file.
- ;; Suggested by tale@pawl.rpi.edu.
- (set-buffer (or (get-file-buffer gnus-current-startup-file)
- (find-file-noselect gnus-current-startup-file)))
- ;; Options line continuation lines must be also considered here.
- ;; Before supporting continuation lines, " newsgroup ! 1-5" was
- ;; okay, but now it is invalid. It should be "newsgroup! 1-5".
- (let ((deleted nil)
- (case-fold-search nil) ;Should NOT ignore case.
- (buffer-read-only nil)) ;May be not modifiable.
- ;; Delete ALL entries which match for GROUP.
- (goto-char (point-min))
- (while (re-search-forward
- (concat "^" (regexp-quote group) "[:!]") nil t)
- (beginning-of-line)
- (delete-region (point) (progn (forward-line 1) (point)))
- (setq deleted t) ;Old entry is deleted.
- )
- (if delete
- nil
- ;; Insert group entry.
- (let ((newsrc (gnus-gethash group gnus-newsrc-hashtb)))
- (if (null newsrc)
- nil
- ;; Find insertion point.
- (cond (deleted nil) ;Insert here.
- ((and (stringp next)
- (progn
- (goto-char (point-min))
- (re-search-forward
- (concat "^" (regexp-quote next) "[:!]") nil t)))
- (beginning-of-line))
- (t
- (goto-char (point-max))
- (or (bolp)
- (insert "\n"))))
- ;; Insert after options line.
- (if (looking-at "^[ \t]*options\\([ \t]\\|$\\)")
- (progn
- (forward-line 1)
- ;; Skip continuation lines.
- (while (and (not (eobp))
- (looking-at "^[ \t]+"))
- (forward-line 1))))
- (insert group ;Group name
- (if (nth 1 newsrc) ": " "! ")) ;Subscribed?
- (gnus-ranges-to-newsrc-format (nthcdr 2 newsrc)) ;Read articles
- (insert "\n")
- )))
- )))
-
-(defun gnus-gnus-to-quick-newsrc-format ()
- "Insert GNUS variables such as gnus-newsrc-assoc in lisp format."
- (insert ";; GNUS internal format of .newsrc.\n")
- (insert ";; Touch .newsrc instead if you think to remove this file.\n")
- (let ((variable nil)
- (variables gnus-variable-list)
- ;; Temporary rebind to make changes
- ;; gnus-check-killed-newsgroups in invisible.
- (gnus-killed-assoc gnus-killed-assoc)
- (gnus-killed-hashtb gnus-killed-hashtb))
- ;; Remove duplicated or unsubscribed newsgroups in
- ;; gnus-killed-assoc (and gnus-killed-hashtb).
- (gnus-check-killed-newsgroups)
- ;; Then, insert lisp expressions.
- (while variables
- (setq variable (car variables))
- (and (boundp variable)
- (symbol-value variable)
- (insert "(setq " (symbol-name variable) " '"
- (prin1-to-string (symbol-value variable))
- ")\n"))
- (setq variables (cdr variables)))
- ))
-
-(defun gnus-ranges-to-newsrc-format (ranges)
- "Insert ranges of read articles."
- (let ((range nil)) ;Range is a pair of BEGIN and END.
- (while ranges
- (setq range (car ranges))
- (setq ranges (cdr ranges))
- (cond ((= (car range) (cdr range))
- (if (= (car range) 0)
- (setq ranges nil) ;No unread articles.
- (insert (int-to-string (car range)))
- (if ranges (insert ","))
- ))
- (t
- (insert (int-to-string (car range))
- "-"
- (int-to-string (cdr range)))
- (if ranges (insert ","))
- ))
- )))
-
-(defun gnus-compress-sequence (numbers)
- "Convert list of sorted numbers to ranges."
- (let* ((numbers (sort (copy-sequence numbers) (function <)))
- (first (car numbers))
- (last (car numbers))
- (result nil))
- (while numbers
- (cond ((= last (car numbers)) nil) ;Omit duplicated number
- ((= (1+ last) (car numbers)) ;Still in sequence
- (setq last (car numbers)))
- (t ;End of one sequence
- (setq result (cons (cons first last) result))
- (setq first (car numbers))
- (setq last (car numbers)))
- )
- (setq numbers (cdr numbers))
- )
- (nreverse (cons (cons first last) result))
- ))
-
-(defun gnus-uncompress-sequence (ranges)
- "Expand compressed format of sequence."
- (let ((first nil)
- (last nil)
- (result nil))
- (while ranges
- (setq first (car (car ranges)))
- (setq last (cdr (car ranges)))
- (while (< first last)
- (setq result (cons first result))
- (setq first (1+ first)))
- (setq result (cons first result))
- (setq ranges (cdr ranges))
- )
- (nreverse result)
- ))
-
-(defun gnus-number-of-articles (range)
- "Compute number of articles from RANGE `((beg1 . end1) (beg2 . end2) ...)'."
- (let ((count 0))
- (while range
- (if (/= (cdr (car range)) 0)
- ;; If end1 is 0, it must be skipped. Usually no articles in
- ;; this group.
- (setq count (+ count 1 (- (cdr (car range)) (car (car range))))))
- (setq range (cdr range))
- )
- count ;Result
- ))
-
-(defun gnus-difference-of-range (src obj)
- "Compute (SRC - OBJ) on range.
-Range of SRC is expressed as `(beg . end)'.
-Range of OBJ is expressed as `((beg1 . end1) (beg2 . end2) ...)."
- (let ((beg (car src))
- (end (cdr src))
- (range nil)) ;This is result.
- ;; Src may be nil.
- (while (and src obj)
- (let ((beg1 (car (car obj)))
- (end1 (cdr (car obj))))
- (cond ((> beg end)
- (setq obj nil)) ;Terminate loop
- ((< beg beg1)
- (setq range (cons (cons beg (min (1- beg1) end)) range))
- (setq beg (1+ end1)))
- ((>= beg beg1)
- (setq beg (max beg (1+ end1))))
- )
- (setq obj (cdr obj)) ;Next OBJ
- ))
- ;; Src may be nil.
- (if (and src (<= beg end))
- (setq range (cons (cons beg end) range)))
- ;; Result
- (if range
- (nreverse range)
- (list (cons 0 0)))
- ))
-
-(defun gnus-read-distributions-file ()
- "Get distributions file from NNTP server (NNTP2 functionality)."
- ;; Make sure a connection to NNTP server is alive.
- (gnus-start-news-server)
- (message "Reading distributions file...")
- (setq gnus-distribution-list nil)
- (if (gnus-request-list-distributions)
- (save-excursion
- (set-buffer nntp-server-buffer)
- (gnus-distributions-to-gnus-format)
- (message "Reading distributions file... done"))
- ;; It's not a fatal error.
- ;;(error "Cannot read distributions file from NNTP server.")
- )
- ;; Merge with user supplied default distributions.
- (let ((defaults (reverse gnus-local-distributions))
- (dist nil))
- (while defaults
- (setq dist (assoc (car defaults) gnus-distribution-list))
- (if dist
- (setq gnus-distribution-list
- (delq dist gnus-distribution-list)))
- (setq gnus-distribution-list
- (cons (list (car defaults)) gnus-distribution-list))
- (setq defaults (cdr defaults))
- )))
-
-(defun gnus-distributions-to-gnus-format ()
- "Convert distributions file format to internal format."
- (setq gnus-distribution-list nil)
- (goto-char (point-min))
- (while (re-search-forward "^\\([^ \t\n]+\\).*$" nil t)
- (setq gnus-distribution-list
- (cons (list (buffer-substring (match-beginning 1) (match-end 1)))
- gnus-distribution-list)))
- (setq gnus-distribution-list
- (nreverse gnus-distribution-list)))
-
-;; Some older version of GNU Emacs does not support function
-;; `file-newer-than-file-p'.
-
-(or (fboundp 'file-newer-than-file-p)
- (defun file-newer-than-file-p (file1 file2)
- "Return t if file FILE1 is newer than file FILE2.
-If FILE1 does not exist, the answer is nil;
-otherwise, if FILE2 does not exist, the answer is t."
- (let ((mod1 (nth 5 (file-attributes file1)))
- (mod2 (nth 5 (file-attributes file2))))
- (cond ((not (file-exists-p file1)) nil)
- ((not (file-exists-p file2)) t)
- ((and mod2 mod1)
- (or (< (car mod2) (car mod1))
- (and (= (car mod2) (car mod1))
- (<= (nth 1 mod2) (nth 1 mod1)))))
- ))))
-
-\f
-;;Local variables:
-;;eval: (put 'gnus-eval-in-buffer-window 'lisp-indent-hook 1)
-;;end:
+;;; gnus.el --- a newsreader for GNU Emacs
+
+;; Copyright (C) 1987,88,89,90,93,94,95,96 Free Software Foundation, Inc.
+
+;; Author: Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
+;; 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:
+
+;; Although Gnus looks suspiciously like GNUS, it isn't quite the same
+;; beast. Most internal structures have been changed. If you have
+;; written packages that depend on any of the hash tables,
+;; `gnus-newsrc-alist', `gnus-killed-assoc', marked lists, the .newsrc
+;; buffer, or internal knowledge of the `nntp-header-' macros, or
+;; dependence on the buffers having a certain format, your code will
+;; fail.
+
+;;; Code:
+
+(eval '(run-hooks 'gnus-load-hook))
+
+(require 'mail-utils)
+(require 'timezone)
+(require 'nnheader)
+
+;; Site dependent variables. These variables should be defined in
+;; paths.el.
+
+(defvar gnus-default-nntp-server nil
+ "Specify a default NNTP server.
+This variable should be defined in paths.el, and should never be set
+by the user.
+If you want to change servers, you should use `gnus-select-method'.
+See the documentation to that variable.")
+
+(defconst gnus-backup-default-subscribed-newsgroups
+ '("news.announce.newusers" "news.groups.questions" "gnu.emacs.gnus")
+ "Default default new newsgroups the first time Gnus is run.
+Should be set in paths.el, and shouldn't be touched by the user.")
+
+(defvar gnus-local-domain nil
+ "Local domain name without a host name.
+The DOMAINNAME environment variable is used instead if it is defined.
+If the `system-name' function returns the full Internet name, there is
+no need to set this variable.")
+
+(defvar gnus-local-organization nil
+ "String with a description of what organization (if any) the user belongs to.
+The ORGANIZATION environment variable is used instead if it is defined.
+If this variable contains a function, this function will be called
+with the current newsgroup name as the argument. The function should
+return a string.
+
+In any case, if the string (either in the variable, in the environment
+variable, or returned by the function) is a file name, the contents of
+this file will be used as the organization.")
+
+(defvar gnus-use-generic-from nil
+ "If nil, the full host name will be the system name prepended to the domain name.
+If this is a string, the full host name will be this string.
+If this is non-nil, non-string, the domain name will be used as the
+full host name.")
+
+(defvar gnus-use-generic-path nil
+ "If nil, use the NNTP server name in the Path header.
+If stringp, use this; if non-nil, use no host name (user name only).")
+
+
+;; Customization variables
+
+;; Don't touch this variable.
+(defvar gnus-nntp-service "nntp"
+ "*NNTP service name (\"nntp\" or 119).
+This is an obsolete variable, which is scarcely used. If you use an
+nntp server for your newsgroup and want to change the port number
+used to 899, you would say something along these lines:
+
+ (setq gnus-select-method '(nntp \"my.nntp.server\" (nntp-port-number 899)))")
+
+(defvar gnus-select-method
+ (nconc
+ (list 'nntp (or (getenv "NNTPSERVER")
+ (if (and gnus-default-nntp-server
+ (not (string= gnus-default-nntp-server "")))
+ gnus-default-nntp-server)
+ (system-name)))
+ (if (or (null gnus-nntp-service)
+ (equal gnus-nntp-service "nntp"))
+ nil
+ (list gnus-nntp-service)))
+ "*Default method for selecting a newsgroup.
+This variable should be a list, where the first element is how the
+news is to be fetched, the second is the address.
+
+For instance, if you want to get your news via NNTP from
+\"flab.flab.edu\", you could say:
+
+(setq gnus-select-method '(nntp \"flab.flab.edu\"))
+
+If you want to use your local spool, say:
+
+(setq gnus-select-method (list 'nnspool (system-name)))
+
+If you use this variable, you must set `gnus-nntp-server' to nil.
+
+There is a lot more to know about select methods and virtual servers -
+see the manual for details.")
+
+;; Added by Sudish Joseph <joseph@cis.ohio-state.edu>.
+(defvar gnus-post-method nil
+ "*Preferred method for posting USENET news.
+If this variable is nil, Gnus will use the current method to decide
+which method to use when posting. If it is non-nil, it will override
+the current method. This method will not be used in mail groups and
+the like, only in \"real\" newsgroups.
+
+The value must be a valid method as discussed in the documentation of
+`gnus-select-method'.")
+
+(defvar gnus-refer-article-method nil
+ "*Preferred method for fetching an article by Message-ID.
+If you are reading news from the local spool (with nnspool), fetching
+articles by Message-ID is painfully slow. By setting this method to an
+nntp method, you might get acceptable results.
+
+The value of this variable must be a valid select method as discussed
+in the documentation of `gnus-select-method'")
+
+(defvar gnus-secondary-select-methods nil
+ "*A list of secondary methods that will be used for reading news.
+This is a list where each element is a complete select method (see
+`gnus-select-method').
+
+If, for instance, you want to read your mail with the nnml backend,
+you could set this variable:
+
+(setq gnus-secondary-select-methods '((nnml \"\")))")
+
+(defvar gnus-secondary-servers nil
+ "*List of NNTP servers that the user can choose between interactively.
+To make Gnus query you for a server, you have to give `gnus' a
+non-numeric prefix - `C-u M-x gnus', in short.")
+
+(defvar gnus-nntp-server nil
+ "*The name of the host running the NNTP server.
+This variable is semi-obsolete. Use the `gnus-select-method'
+variable instead.")
+
+(defvar gnus-startup-file "~/.newsrc"
+ "*Your `.newsrc' file.
+`.newsrc-SERVER' will be used instead if that exists.")
+
+(defvar gnus-init-file "~/.gnus"
+ "*Your Gnus elisp startup file.
+If a file with the .el or .elc suffixes exist, it will be read
+instead.")
+
+(defvar gnus-group-faq-directory
+ "/ftp@mirrors.aol.com:/pub/rtfm/usenet/"
+ "*Directory where the group FAQs are stored.
+This will most commonly be on a remote machine, and the file will be
+fetched by ange-ftp.
+
+Note that Gnus uses an aol machine as the default directory. If this
+feels fundamentally unclean, just think of it as a way to finally get
+something of value back from them.
+
+If the default site is too slow, try one of these:
+
+ North America: ftp.uu.net /usenet/news.answers
+ mirrors.aol.com /pub/rtfm/usenet
+ ftp.seas.gwu.edu /pub/rtfm
+ rtfm.mit.edu /pub/usenet/news.answers
+ Europe: ftp.uni-paderborn.de /pub/FAQ
+ ftp.Germany.EU.net /pub/newsarchive/news.answers
+ ftp.sunet.se /pub/usenet
+ Asia: nctuccca.edu.tw /USENET/FAQ
+ hwarang.postech.ac.kr /pub/usenet/news.answers
+ ftp.hk.super.net /mirror/faqs")
+
+(defvar gnus-group-archive-directory
+ "/ftp@ftp.hpc.uh.edu:/pub/emacs/ding-list/"
+ "*The address of the (ding) archives.")
+
+(defvar gnus-group-recent-archive-directory
+ "/ftp@ftp.hpc.uh.edu:/pub/emacs/ding-list-recent/"
+ "*The address of the most recent (ding) articles.")
+
+(defvar 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.")
+
+(defvar gnus-use-cross-reference t
+ "*Non-nil means that cross referenced articles will be marked as read.
+If nil, ignore cross references. If t, mark articles as read in
+subscribed newsgroups. If neither t nor nil, mark as read in all
+newsgroups.")
+
+(defvar 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.")
+
+(defvar gnus-asynchronous nil
+ "*If non-nil, Gnus will supply backends with data needed for async article fetching.")
+
+(defvar gnus-asynchronous-article-function nil
+ "*Function for picking articles to pre-fetch, possibly.")
+
+(defvar gnus-score-file-single-match-alist nil
+ "*Alist mapping regexps to lists of score files.
+Each element of this alist should be of the form
+ (\"REGEXP\" [ \"SCORE-FILE-1\" ] [ \"SCORE-FILE-2\" ] ... )
+
+If the name of a group is matched by REGEXP, the corresponding scorefiles
+will be used for that group.
+The first match found is used, subsequent matching entries are ignored (to
+use multiple matches, see gnus-score-file-multiple-match-alist).
+
+These score files are loaded in addition to any files returned by
+gnus-score-find-score-files-function (which see).")
+
+(defvar gnus-score-file-multiple-match-alist nil
+ "*Alist mapping regexps to lists of score files.
+Each element of this alist should be of the form
+ (\"REGEXP\" [ \"SCORE-FILE-1\" ] [ \"SCORE-FILE-2\" ] ... )
+
+If the name of a group is matched by REGEXP, the corresponding scorefiles
+will be used for that group.
+If multiple REGEXPs match a group, the score files corresponding to each
+match will be used (for only one match to be used, see
+gnus-score-file-single-match-alist).
+
+These score files are loaded in addition to any files returned by
+gnus-score-find-score-files-function (which see).")
+
+
+(defvar gnus-score-file-suffix "SCORE"
+ "*Suffix of the score files.")
+
+(defvar gnus-adaptive-file-suffix "ADAPT"
+ "*Suffix of the adaptive score files.")
+
+(defvar gnus-score-find-score-files-function 'gnus-score-find-bnews
+ "*Function used to find score files.
+The function will be called with the group name as the argument, and
+should return a list of score files to apply to that group. The score
+files do not actually have to exist.
+
+Predefined values are:
+
+gnus-score-find-single: Only apply the group's own score file.
+gnus-score-find-hierarchical: Also apply score files from parent groups.
+gnus-score-find-bnews: Apply score files whose names matches.
+
+See the documentation to these functions for more information.
+
+This variable can also be a list of functions to be called. Each
+function should either return a list of score files, or a list of
+score alists.")
+
+(defvar gnus-score-interactive-default-score 1000
+ "*Scoring commands will raise/lower the score with this number as the default.")
+
+(defvar gnus-large-newsgroup 200
+ "*The number of articles which indicates a large newsgroup.
+If the number of articles in a newsgroup is greater than this value,
+confirmation is required for selecting the newsgroup.")
+
+;; Suggested by Andrew Eskilsson <pi92ae@lelle.pt.hk-r.se>.
+(defvar gnus-no-groups-message "No news is horrible news"
+ "*Message displayed by Gnus when no groups are available.")
+
+(defvar gnus-use-long-file-name (not (memq system-type '(usg-unix-v xenix)))
+ "*Non-nil means that the default name of a file to save articles in is the group name.
+If it's nil, the directory form of the group name is used instead.
+
+If this variable is a list, and the list contains the element
+`not-score', long file names will not be used for score files; if it
+contains the element `not-save', long file names will not be used for
+saving; and if it contains the element `not-kill', long file names
+will not be used for kill files.")
+
+(defvar gnus-article-save-directory (or (getenv "SAVEDIR") "~/News/")
+ "*Name of the directory articles will be saved in (default \"~/News\").
+Initialized from the SAVEDIR environment variable.")
+
+(defvar gnus-kill-files-directory (or (getenv "SAVEDIR") "~/News/")
+ "*Name of the directory where kill files will be stored (default \"~/News\").
+Initialized from the SAVEDIR environment variable.")
+
+(defvar gnus-default-article-saver 'gnus-summary-save-in-rmail
+ "*A function to save articles in your favorite format.
+The function must be interactively callable (in other words, it must
+be an Emacs command).
+
+Gnus provides the following functions:
+
+* gnus-summary-save-in-rmail (Rmail format)
+* gnus-summary-save-in-mail (Unix mail format)
+* gnus-summary-save-in-folder (MH folder)
+* gnus-summary-save-in-file (article format).
+* gnus-summary-save-in-vm (use VM's folder format).")
+
+(defvar gnus-rmail-save-name (function gnus-plain-save-name)
+ "*A function generating a file name to save articles in Rmail format.
+The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE.")
+
+(defvar gnus-mail-save-name (function gnus-plain-save-name)
+ "*A function generating a file name to save articles in Unix mail format.
+The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE.")
+
+(defvar gnus-folder-save-name (function gnus-folder-save-name)
+ "*A function generating a file name to save articles in MH folder.
+The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER.")
+
+(defvar gnus-file-save-name (function gnus-numeric-save-name)
+ "*A function generating a file name to save articles in article format.
+The function is called with NEWSGROUP, HEADERS, and optional
+LAST-FILE.")
+
+(defvar gnus-split-methods nil
+ "*Variable used to suggest where articles are to be saved.
+The syntax of this variable is the same as `nnmail-split-methods'.
+
+For instance, if you would like to save articles related to Gnus in
+the file \"gnus-stuff\", and articles related to VM in \"vm-stuff\",
+you could set this variable to something like:
+
+ '((\"^Subject:.*gnus\\|^Newsgroups:.*gnus\" \"gnus-stuff\")
+ (\"^Subject:.*vm\\|^Xref:.*vm\" \"vm-stuff\"))")
+
+(defvar gnus-save-score nil
+ "*If non-nil, save group scoring info.")
+
+(defvar gnus-use-adaptive-scoring nil
+ "*If non-nil, use some adaptive scoring scheme.")
+
+(defvar gnus-use-cache nil
+ "*If non-nil, Gnus will cache (some) articles locally.")
+
+(defvar gnus-use-scoring t
+ "*If non-nil, enable scoring.")
+
+(defvar gnus-fetch-old-headers nil
+ "*Non-nil means that Gnus will try to build threads by grabbing old headers.
+If an unread article in the group refers to an older, already read (or
+just marked as read) article, the old article will not normally be
+displayed in the Summary buffer. If this variable is non-nil, Gnus
+will attempt to grab the headers to the old articles, and thereby
+build complete threads. If it has the value `some', only enough
+headers to connect otherwise loose threads will be displayed.
+
+The server has to support XOVER for any of this to work.")
+
+;see gnus-cus.el
+;(defvar gnus-visual t
+; "*If non-nil, will do various highlighting.
+;If nil, no mouse highlights (or any other highlights) will be
+;performed. This might speed up Gnus some when generating large group
+;and summary buffers.")
+
+(defvar gnus-novice-user t
+ "*Non-nil means that you are a usenet novice.
+If non-nil, verbose messages may be displayed and confirmations may be
+required.")
+
+(defvar gnus-expert-user nil
+ "*Non-nil means that you will never be asked for confirmation about anything.
+And that means *anything*.")
+
+(defvar gnus-verbose 7
+ "*Integer that says how verbose Gnus should be.
+The higher the number, the more messages Gnus will flash to say what
+it's doing. At zero, Gnus will be totally mute; at five, Gnus will
+display most important messages; and at ten, Gnus will keep on
+jabbering all the time.")
+
+(defvar gnus-keep-same-level nil
+ "*Non-nil means that the next newsgroup after the current will be on the same level.
+When you type, for instance, `n' after reading the last article in the
+current newsgroup, you will go to the next newsgroup. If this variable
+is nil, the next newsgroup will be the next from the group
+buffer.
+If this variable is non-nil, Gnus will either put you in the
+next newsgroup with the same level, or, if no such newsgroup is
+available, the next newsgroup with the lowest possible level higher
+than the current level.
+If this variable is `best', Gnus will make the next newsgroup the one
+with the best level.")
+
+(defvar gnus-summary-make-false-root 'adopt
+ "*nil means that Gnus won't gather loose threads.
+If the root of a thread has expired or been read in a previous
+session, the information necessary to build a complete thread has been
+lost. Instead of having many small sub-threads from this original thread
+scattered all over the summary buffer, Gnus can gather them.
+
+If non-nil, Gnus will try to gather all loose sub-threads from an
+original thread into one large thread.
+
+If this variable is non-nil, it should be one of `none', `adopt',
+`dummy' or `empty'.
+
+If this variable is `none', Gnus will not make a false root, but just
+present the sub-threads after another.
+If this variable is `dummy', Gnus will create a dummy root that will
+have all the sub-threads as children.
+If this variable is `adopt', Gnus will make one of the \"children\"
+the parent and mark all the step-children as such.
+If this variable is `empty', the \"children\" are printed with empty
+subject fields. (Or rather, they will be printed with a string
+given by the `gnus-summary-same-subject' variable.)")
+
+(defvar gnus-summary-gather-subject-limit nil
+ "*Maximum length of subject comparisons when gathering loose threads.
+Use nil to compare full subjects. Setting this variable to a low
+number will help gather threads that have been corrupted by
+newsreaders chopping off subject lines, but it might also mean that
+unrelated articles that have subject that happen to begin with the
+same few characters will be incorrectly gathered.
+
+If this variable is `fuzzy', Gnus will use a fuzzy algorithm when
+comparing subjects.")
+
+;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
+(defvar gnus-summary-same-subject ""
+ "*String indicating that the current article has the same subject as the previous.
+This variable will only be used if the value of
+`gnus-summary-make-false-root' is `empty'.")
+
+(defvar gnus-summary-goto-unread t
+ "*If non-nil, marking commands will go to the next unread article.")
+
+(defvar gnus-group-goto-unread t
+ "*If non-nil, movement commands will go to the next unread and subscribed group.")
+
+(defvar gnus-check-new-newsgroups t
+ "*Non-nil means that Gnus will add new newsgroups at startup.
+If this variable is `ask-server', Gnus will ask the server for new
+groups since the last time it checked. This means that the killed list
+is no longer necessary, so you could set `gnus-save-killed-list' to
+nil.
+
+A variant is to have this variable be a list of select methods. Gnus
+will then use the `ask-server' method on all these select methods to
+query for new groups from all those 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].")
+
+(defvar 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].")
+
+(defvar 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.")
+
+(defvar gnus-level-subscribed 5
+ "*Groups with levels less than or equal to this variable are subscribed.")
+
+(defvar 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.")
+
+(defvar gnus-level-zombie 8
+ "*Groups with this level are zombie groups.")
+
+(defvar gnus-level-killed 9
+ "*Groups with this level are killed.")
+
+(defvar gnus-level-default-subscribed 3
+ "*New subscribed groups will be subscribed at this level.")
+
+(defvar gnus-level-default-unsubscribed 6
+ "*New unsubscribed groups will be unsubscribed at this level.")
+
+(defvar 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.")
+
+(defvar 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.")
+
+(defvar gnus-save-killed-list t
+ "*If non-nil, save the list of killed groups to the startup file.
+This will 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.")
+
+(defvar gnus-interactive-catchup t
+ "*If non-nil, require your confirmation when catching up a group.")
+
+(defvar gnus-interactive-post t
+ "*If non-nil, group name will be asked for when posting.")
+
+(defvar gnus-interactive-exit t
+ "*If non-nil, require your confirmation when exiting Gnus.")
+
+(defvar gnus-kill-killed t
+ "*If non-nil, Gnus will apply kill files to already killed articles.
+If it is nil, Gnus will never apply kill files to articles that have
+already been through the scoring process, which might very well save lots
+of time.")
+
+(defvar gnus-extract-address-components 'gnus-extract-address-components
+ "*Function for extracting address components from a From header.
+Two pre-defined function exist: `gnus-extract-address-components',
+which is the default, quite fast, and too simplistic solution, and
+`mail-extract-address-components', which works much better, but is
+slower.")
+
+(defvar gnus-summary-default-score 0
+ "*Default article score level.
+If this variable is nil, scoring will be disabled.")
+
+(defvar gnus-summary-zcore-fuzz 0
+ "*Fuzziness factor for the zcore in the summary buffer.
+Articles with scores closer than this to `gnus-summary-default-score'
+will not be marked.")
+
+(defvar gnus-simplify-subject-fuzzy-regexp nil
+ "*Regular expression that will be removed from subject strings if
+fuzzy subject simplification is selected.")
+
+(defvar gnus-group-default-list-level gnus-level-subscribed
+ "*Default listing level.
+Ignored if `gnus-group-use-permanent-levels' is non-nil.")
+
+(defvar gnus-group-use-permanent-levels nil
+ "*If non-nil, once you set a level, Gnus will use this level.")
+
+(defvar gnus-show-mime nil
+ "*If non-nil, do mime processing of articles.
+The articles will simply be fed to the function given by
+`gnus-show-mime-method'.")
+
+(defvar gnus-strict-mime t
+ "*If nil, decode MIME header even if there is not Mime-Version field.")
+
+(defvar gnus-show-mime-method (function metamail-buffer)
+ "*Function to process a MIME message.
+The function is called from the article buffer.")
+
+(defvar gnus-show-threads t
+ "*If non-nil, display threads in summary mode.")
+
+(defvar gnus-thread-hide-subtree nil
+ "*If non-nil, hide all threads initially.
+If threads are hidden, you have to run the command
+`gnus-summary-show-thread' by hand or use `gnus-select-article-hook'
+to expose hidden threads.")
+
+(defvar gnus-thread-hide-killed t
+ "*If non-nil, hide killed threads automatically.")
+
+(defvar gnus-thread-ignore-subject nil
+ "*If non-nil, ignore subjects and do all threading based on the Reference header.
+If nil, which is the default, articles that have different subjects
+from their parents will start separate threads.")
+
+(defvar gnus-thread-indent-level 4
+ "*Number that says how much each sub-thread should be indented.")
+
+(defvar 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.")
+
+(defvar gnus-ignored-headers
+ "^Path:\\|^Posting-Version:\\|^Article-I.D.:\\|^Expires:\\|^Date-Received:\\|^References:\\|^Control:\\|^Xref:\\|^Lines:\\|^Posted:\\|^Relay-Version:\\|^Message-ID:\\|^Nf-ID:\\|^Nf-From:\\|^Approved:\\|^Sender:\\|^Received:\\|^Mail-from:"
+ "*All headers that match this regexp will be hidden.
+If `gnus-visible-headers' is non-nil, this variable will be ignored.")
+
+(defvar gnus-visible-headers "^From:\\|^Newsgroups:\\|^Subject:\\|^Date:\\|^Followup-To:\\|^Reply-To:\\|^Organization:\\|^Summary:\\|^Keywords:\\|^To:\\|^Cc:"
+ "*All headers that do not match this regexp will be hidden.
+If this variable is non-nil, `gnus-ignored-headers' will be ignored.")
+
+(defvar gnus-sorted-header-list
+ '("^From:" "^Subject:" "^Summary:" "^Keywords:" "^Newsgroups:" "^To:"
+ "^Cc:" "^Date:" "^Organization:")
+ "*This variable is a list of regular expressions.
+If it is non-nil, headers that match the regular expressions will
+be placed first in the article buffer in the sequence specified by
+this list.")
+
+(defvar gnus-show-all-headers nil
+ "*If non-nil, don't hide any headers.")
+
+(defvar gnus-save-all-headers t
+ "*If non-nil, don't remove any headers before saving.")
+
+(defvar gnus-inhibit-startup-message nil
+ "*If non-nil, the startup message will not be displayed.")
+
+(defvar gnus-signature-separator "^-- *$"
+ "Regexp matching signature separator.")
+
+(defvar gnus-auto-extend-newsgroup t
+ "*If non-nil, extend newsgroup forward and backward when requested.")
+
+(defvar gnus-auto-select-first t
+ "*If non-nil, select the first unread article when entering a group.
+If you want to prevent automatic selection of the first unread article
+in some newsgroups, set the variable to nil in
+`gnus-select-group-hook'.")
+
+(defvar gnus-auto-select-next t
+ "*If non-nil, offer to go to the next group from the end of the previous.
+If the value is t and the next newsgroup is empty, Gnus will exit
+summary mode and go back to group mode. If the value is neither nil
+nor t, Gnus will select the following unread newsgroup. In
+particular, if the value is the symbol `quietly', the next unread
+newsgroup will be selected without any confirmations.")
+
+(defvar gnus-auto-select-same nil
+ "*If non-nil, select the next article with the same subject.")
+
+(defvar gnus-summary-check-current nil
+ "*If non-nil, consider the current article when moving.
+The \"unread\" movement commands will stay on the same line if the
+current article is unread.")
+
+(defvar gnus-auto-center-summary t
+ "*If non-nil, always center the current summary buffer.")
+
+(defvar gnus-break-pages t
+ "*If non-nil, do page breaking on articles.
+The page delimiter is specified by the `gnus-page-delimiter'
+variable.")
+
+(defvar gnus-page-delimiter "^\^L"
+ "*Regexp describing what to use as article page delimiters.
+The default value is \"^\^L\", which is a form linefeed at the
+beginning of a line.")
+
+(defvar gnus-use-full-window t
+ "*If non-nil, use the entire Emacs screen.")
+
+(defvar gnus-window-configuration nil
+ "Obsolete variable. See `gnus-buffer-configuration'.")
+
+(defvar gnus-buffer-configuration
+ '((group ([group 1.0 point]
+ (if gnus-carpal [group-carpal 4])))
+ (summary ([summary 1.0 point]
+ (if gnus-carpal [summary-carpal 4])))
+ (article ([summary 0.25 point]
+ (if gnus-carpal [summary-carpal 4])
+ [article 1.0]))
+ (pipe ([summary 0.25 point]
+ (if gnus-carpal [summary-carpal 4])
+ [pipe 1.0]))
+ (server ([server 1.0 point]
+ (if gnus-carpal [server-carpal 2])))
+ (browse ([browse 1.0 point]
+ (if gnus-carpal [browse-carpal 2])))
+ (group-mail ([mail 1.0 point]))
+ (summary-mail ([mail 1.0 point]))
+ (summary-reply ([article 0.5]
+ [mail 1.0 point]))
+ (info ([nil 1.0 point]))
+ (summary-faq ([summary 0.25]
+ [faq 1.0 point]))
+ (edit-group ([group 0.5]
+ [edit-group 1.0 point]))
+ (edit-server ([server 0.5]
+ [edit-server 1.0 point]))
+ (edit-score ([summary 0.25]
+ [edit-score 1.0 point]))
+ (post ([post 1.0 point]))
+ (reply ([article 0.5]
+ [mail 1.0 point]))
+ (mail-forward ([mail 1.0 point]))
+ (post-forward ([post 1.0 point]))
+ (reply-yank ([mail 1.0 point]))
+ (followup ([article 0.5]
+ [post 1.0 point]))
+ (followup-yank ([post 1.0 point])))
+ "Window configuration for all possible Gnus buffers.
+This variable is a list of lists. Each of these lists has a NAME and
+a RULE. The NAMEs are common-sense names like `group', which names a
+rule used when displaying the group buffer; `summary', which names a
+rule for what happens when you enter a group and do not display an
+article buffer; and so on. See the value of this variable for a
+complete list of NAMEs.
+
+Each RULE is a list of vectors. The first element in this vector is
+the name of the buffer to be displayed; the second element is the
+percentage of the screen this buffer is to occupy (a number in the
+0.0-0.99 range); the optional third element is `point', which should
+be present to denote which buffer point is to go to after making this
+buffer configuration.")
+
+(defvar gnus-window-to-buffer
+ '((group . gnus-group-buffer)
+ (summary . gnus-summary-buffer)
+ (article . gnus-article-buffer)
+ (server . gnus-server-buffer)
+ (browse . "*Gnus Browse Server*")
+ (pipe . "*Shell Command Output*")
+ (edit-group . gnus-group-edit-buffer)
+ (edit-server . gnus-server-edit-buffer)
+ (group-carpal . gnus-carpal-group-buffer)
+ (summary-carpal . gnus-carpal-summary-buffer)
+ (server-carpal . gnus-carpal-server-buffer)
+ (browse-carpal . gnus-carpal-browse-buffer)
+ (edit-score . gnus-score-edit-buffer)
+ (mail . gnus-mail-buffer)
+ (post . gnus-post-news-buffer)
+ (faq . gnus-faq-buffer))
+ "Mapping from short symbols to buffer names or buffer variables.")
+
+(defvar gnus-carpal nil
+ "*If non-nil, display clickable icons.")
+
+(defvar 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.")
+
+;; Suggested by a bug report by Hallvard B Furuseth.
+;; <h.b.furuseth@usit.uio.no>.
+(defvar gnus-subscribe-options-newsgroup-method
+ (function 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.")
+
+(defvar 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.")
+
+(defvar gnus-group-sort-function 'gnus-group-sort-by-alphabet
+ "*Function used for sorting the group buffer.
+This function will be called with group info entries as the arguments
+for the groups to be sorted. Pre-made functions include
+`gnus-group-sort-by-alphabet', `gnus-group-sort-by-unread' and
+`gnus-group-sort-by-level'")
+
+;; Mark variables suggested by Thomas Michanek
+;; <Thomas.Michanek@telelogic.se>.
+(defvar gnus-unread-mark ?
+ "*Mark used for unread articles.")
+(defvar gnus-ticked-mark ?!
+ "*Mark used for ticked articles.")
+(defvar gnus-dormant-mark ??
+ "*Mark used for dormant articles.")
+(defvar gnus-del-mark ?r
+ "*Mark used for del'd articles.")
+(defvar gnus-read-mark ?R
+ "*Mark used for read articles.")
+(defvar gnus-expirable-mark ?E
+ "*Mark used for expirable articles.")
+(defvar gnus-killed-mark ?K
+ "*Mark used for killed articles.")
+(defvar gnus-kill-file-mark ?X
+ "*Mark used for articles killed by kill files.")
+(defvar gnus-low-score-mark ?Y
+ "*Mark used for articles with a low score.")
+(defvar gnus-catchup-mark ?C
+ "*Mark used for articles that are caught up.")
+(defvar gnus-replied-mark ?A
+ "*Mark used for articles that have been replied to.")
+(defvar gnus-process-mark ?#
+ "*Process mark.")
+(defvar gnus-ancient-mark ?O
+ "*Mark used for ancient articles.")
+(defvar gnus-canceled-mark ?G
+ "*Mark used for canceled articles.")
+(defvar gnus-score-over-mark ?+
+ "*Score mark used for articles with high scores.")
+(defvar gnus-score-below-mark ?-
+ "*Score mark used for articles with low scores.")
+(defvar gnus-empty-thread-mark ?
+ "*There is no thread under the article.")
+(defvar gnus-not-empty-thread-mark ?=
+ "*There is a thread under the article.")
+(defvar gnus-dummy-mark ?Z
+ "*This is a dummy article.")
+
+(defvar gnus-view-pseudo-asynchronously nil
+ "*If non-nil, Gnus will view pseudo-articles asynchronously.")
+
+(defvar gnus-view-pseudos nil
+ "*If `automatic', pseudo-articles will be viewed automatically.
+If `not-confirm', pseudos will be viewed automatically, and the user
+will not be asked to confirm the command.")
+
+(defvar gnus-view-pseudos-separately t
+ "*If non-nil, one pseudo-article will be created for each file to be viewed.
+If nil, all files that use the same viewing command will be given as a
+list of parameters to that command.")
+
+(defvar gnus-group-line-format "%M%S%p%5y: %(%g%)\n"
+ "*Format of group lines.
+It works along the same lines as a normal formatting string,
+with some simple extensions.
+
+%M Only marked articles (character, \"*\" or \" \")
+%S Whether the group is subscribed (character, \"U\", \"K\", \"Z\" or \" \")
+%L Level of subscribedness (integer)
+%N Number of unread articles (integer)
+%I Number of dormant articles (integer)
+%i Number of ticked and dormant (integer)
+%T Number of ticked articles (integer)
+%R Number of read articles (integer)
+%t Total number of articles (integer)
+%y Number of unread, unticked articles (integer)
+%G Group name (string)
+%g Qualified group name (string)
+%D Group description (string)
+%s Select method (string)
+%o Moderated group (char, \"m\")
+%p Process mark (char)
+%O Moderated group (string, \"(m)\" or \"\")
+%n Select from where (string)
+%z A string that look like `<%s:%n>' if a foreign select method is used
+%u User defined specifier. The next character in the format string should
+ be a letter. Gnus will call the function gnus-user-format-function-X,
+ where X is the letter following %u. The function will be passed the
+ current header as argument. The function should return a string, which
+ will be inserted into the buffer just like information from any other
+ group specifier.
+
+Text between %( and %) will be highlighted with `gnus-mouse-face' when
+the mouse point move inside the area. There can only be one such area.
+
+Note that this format specification is not always respected. For
+reasons of efficiency, when listing killed groups, this specification
+is ignored altogether. If the spec is changed considerably, your
+output may end up looking strange when listing both alive and killed
+groups.
+
+If you use %o or %O, reading the active file will be slower and quite
+a bit of extra memory will be used. %D will also worsen performance.
+Also note that if you change the format specification to include any
+of these specs, you must probably re-start Gnus to see them go into
+effect.")
+
+(defvar gnus-summary-line-format "%U%R%z%I%(%[%4L: %-20,20n%]%) %s\n"
+ "*The format specification of the lines in the summary buffer.
+
+It works along the same lines as a normal formatting string,
+with some simple extensions.
+
+%N Article number, left padded with spaces (string)
+%S Subject (string)
+%s Subject if it is at the root of a thread, and \"\" otherwise (string)
+%n Name of the poster (string)
+%a Extracted name of the poster (string)
+%A Extracted address of the poster (string)
+%F Contents of the From: header (string)
+%x Contents of the Xref: header (string)
+%D Date of the article (string)
+%d Date of the article (string) in DD-MMM format
+%M Message-id of the article (string)
+%r References of the article (string)
+%c Number of characters in the article (integer)
+%L Number of lines in the article (integer)
+%I Indentation based on thread level (a string of spaces)
+%T A string with two possible values: 80 spaces if the article
+ is on thread level two or larger and 0 spaces on level one
+%R \"A\" if this article has been replied to, \" \" otherwise (character)
+%U Status of this article (character, \"R\", \"K\", \"-\" or \" \")
+%[ Opening bracket (character, \"[\" or \"<\")
+%] Closing bracket (character, \"]\" or \">\")
+%> Spaces of length thread-level (string)
+%< Spaces of length (- 20 thread-level) (string)
+%i Article score (number)
+%z Article zcore (character)
+%t Number of articles under the current thread (number).
+%e Whether the thread is empty or not (character).
+%u User defined specifier. The next character in the format string should
+ be a letter. Gnus will call the function gnus-user-format-function-X,
+ where X is the letter following %u. The function will be passed the
+ current header as argument. The function should return a string, which
+ will be inserted into the summary just like information from any other
+ summary specifier.
+
+Text between %( and %) will be highlighted with `gnus-mouse-face'
+when the mouse point is placed inside the area. There can only be one
+such area.
+
+The %U (status), %R (replied) and %z (zcore) specs have to be handled
+with care. For reasons of efficiency, Gnus will compute what column
+these characters will end up in, and \"hard-code\" that. This means that
+it is illegal to have these specs after a variable-length spec. Well,
+you might not be arrested, but your summary buffer will look strange,
+which is bad enough.
+
+The smart choice is to have these specs as for to the left as
+possible.
+
+This restriction may disappear in later versions of Gnus.")
+
+(defvar gnus-summary-dummy-line-format "* : : %S\n"
+ "*The format specification for the dummy roots in the summary buffer.
+It works along the same lines as a normal formatting string,
+with some simple extensions.
+
+%S The subject")
+
+(defvar gnus-summary-mode-line-format "Gnus: %b [%A] %Z"
+ "*The format specification for the summary mode line.")
+
+(defvar gnus-article-mode-line-format "Gnus: %b %S"
+ "*The format specification for the article mode line.")
+
+(defvar gnus-group-mode-line-format "Gnus: %b {%M:%S} "
+ "*The format specification for the group mode line.")
+
+(defvar gnus-valid-select-methods
+ '(("nntp" post address prompt-address)
+ ("nnspool" post)
+ ("nnvirtual" none virtual prompt-address)
+ ("nnmbox" mail respool)
+ ("nnml" mail respool)
+ ("nnmh" mail respool)
+ ("nndir" none prompt-address address)
+ ("nneething" none prompt-address)
+ ("nndigest" none)
+ ("nndoc" none prompt-address)
+ ("nnbabyl" mail respool)
+ ("nnkiboze" post virtual)
+ ;;("nnsoup" post)
+ ("nnfolder" mail respool))
+ "An alist of valid select methods.
+The first element of each list lists should be a string with the name
+of the select method. The other elements may be be the category of
+this method (ie. `post', `mail', `none' or whatever) or other
+properties that this method has (like being respoolable).
+If you implement a new select method, all you should have to change is
+this variable. I think.")
+
+(defvar gnus-updated-mode-lines '(group article summary)
+ "*List of buffers that should update their mode lines.
+The list may contain the symbols `group', `article' and `summary'. If
+the corresponding symbol is present, Gnus will keep that mode line
+updated with information that may be pertinent.
+If this variable is nil, screen refresh may be quicker.")
+
+;; Added by Keinonen Kari <kk85613@cs.tut.fi>.
+(defvar gnus-mode-non-string-length nil
+ "*Max length of mode-line non-string contents.
+If this is nil, Gnus will take space as is needed, leaving the rest
+of the modeline intact.")
+
+;see gnus-cus.el
+;(defvar gnus-mouse-face 'highlight
+; "*Face used for mouse highlighting in Gnus.
+;No mouse highlights will be done if `gnus-visual' is nil.")
+
+(defvar gnus-summary-mark-below nil
+ "*Mark all articles with a score below this variable as read.
+This variable is local to each summary buffer and usually set by the
+score file.")
+
+(defvar gnus-thread-sort-functions '(gnus-thread-sort-by-number)
+ "*List of functions used for sorting threads in the summary buffer.
+By default, threads are sorted by article number.
+
+Each function takes two threads and return non-nil if the first thread
+should be sorted before the other. If you use more than one function,
+the primary sort function should be the last.
+
+Ready-mady functions include `gnus-thread-sort-by-number',
+`gnus-thread-sort-by-author', `gnus-thread-sort-by-subject',
+`gnus-thread-sort-by-date', `gnus-thread-sort-by-score' and
+`gnus-thread-sort-by-total-score' (see `gnus-thread-score-function').")
+
+(defvar gnus-thread-score-function '+
+ "*Function used for calculating the total score of a thread.
+
+The function is called with the scores of the article and each
+subthread and should then return the score of the thread.
+
+Some functions you can use are `+', `max', or `min'.")
+
+(defvar 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.")
+
+(defvar 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.")
+
+(defvar gnus-auto-expirable-newsgroups nil
+ "*Groups in which to automatically mark read articles as expirable.
+If non-nil, this should be a regexp that should match all groups in
+which to perform auto-expiry. This only makes sense for mail groups.")
+
+(defvar gnus-hidden-properties '(invisible t intangible t)
+ "Property list to use for hiding text.")
+
+(defvar 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.")
+
+;; Hooks.
+
+(defvar gnus-group-mode-hook nil
+ "*A hook for Gnus group mode.")
+
+(defvar gnus-summary-mode-hook nil
+ "*A hook for Gnus summary mode.
+This hook is run before any variables are set in the summary buffer.")
+
+(defvar gnus-article-mode-hook nil
+ "*A hook for Gnus article mode.")
+
+(defun gnus-summary-prepare-exit-hook nil
+ "*A hook called when preparing to exit from the summary buffer.
+It calls `gnus-summary-expire-articles' by default.")
+(add-hook 'gnus-summary-prepare-exit-hook 'gnus-summary-expire-articles)
+
+(defun gnus-summary-exit-hook nil
+ "*A hook called on exit from the summary buffer.")
+
+(defvar gnus-open-server-hook nil
+ "*A hook called just before opening connection to the news server.")
+
+(defvar gnus-load-hook nil
+ "*A hook run while Gnus is loaded.")
+
+(defvar gnus-startup-hook nil
+ "*A hook called at startup.
+This hook is called after Gnus is connected to the NNTP server.")
+
+(defvar gnus-get-new-news-hook nil
+ "*A hook run just before Gnus checks for new news.")
+
+(defvar gnus-group-prepare-function 'gnus-group-prepare-flat
+ "*A function that is called to generate the group buffer.
+The function is called with three arguments: The first is a number;
+all group with a level less or equal to that number should be listed,
+if the second is non-nil, empty groups should also be displayed. If
+the third is non-nil, it is a number. No groups with a level lower
+than this number should be displayed.
+
+The only current function implemented is `gnus-group-prepare-flat'.")
+
+(defvar gnus-group-prepare-hook nil
+ "*A hook called after the group buffer has been generated.
+If you want to modify the group buffer, you can use this hook.")
+
+(defvar gnus-summary-prepare-hook nil
+ "*A hook called after the summary buffer has been generated.
+If you want to modify the summary buffer, you can use this hook.")
+
+(defvar gnus-article-prepare-hook nil
+ "*A hook called after an article has been prepared in the article buffer.
+If you want to run a special decoding program like nkf, use this hook.")
+
+;(defvar gnus-article-display-hook nil
+; "*A hook called after the article is displayed in the article buffer.
+;The hook is designed to change the contents of the article
+;buffer. Typical functions that this hook may contain are
+;`gnus-article-hide-headers' (hide selected headers),
+;`gnus-article-maybe-highlight' (perform fancy article highlighting),
+;`gnus-article-hide-signature' (hide signature) and
+;`gnus-article-treat-overstrike' (turn \"^H_\" into bold characters).")
+;(add-hook 'gnus-article-display-hook 'gnus-article-hide-headers-if-wanted)
+;(add-hook 'gnus-article-display-hook 'gnus-article-treat-overstrike)
+;(add-hook 'gnus-article-display-hook 'gnus-article-maybe-highlight)
+
+(defvar gnus-article-x-face-command
+ "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | xv -quit -"
+ "String or function to be executed to display an X-Face header.
+If it is a string, the command will be executed in a sub-shell
+asynchronously. The compressed face will be piped to this command.")
+
+(defvar gnus-article-x-face-too-ugly nil
+ "Regexp matching posters whose face shouldn't be shown automatically.")
+
+(defvar gnus-select-group-hook nil
+ "*A hook called when a newsgroup is selected.
+
+If you'd like to simplify subjects like the
+`gnus-summary-next-same-subject' command does, you can use the
+following hook:
+
+ (setq gnus-select-group-hook
+ (list
+ (lambda ()
+ (mapcar (lambda (header)
+ (mail-header-set-subject
+ header
+ (gnus-simplify-subject
+ (mail-header-subject header) 're-only)))
+ gnus-newsgroup-headers))))")
+
+(defvar gnus-select-article-hook
+ '(gnus-summary-show-thread)
+ "*A hook called when an article is selected.
+The default hook shows conversation thread subtrees of the selected
+article automatically using `gnus-summary-show-thread'.")
+
+(defvar gnus-apply-kill-hook '(gnus-apply-kill-file)
+ "*A hook called to apply kill files to a group.
+This hook is intended to apply a kill file to the selected newsgroup.
+The function `gnus-apply-kill-file' is called by default.
+
+Since a general kill file is too heavy to use only for a few
+newsgroups, I recommend you to use a lighter hook function. For
+example, if you'd like to apply a kill file to articles which contains
+a string `rmgroup' in subject in newsgroup `control', you can use the
+following hook:
+
+ (setq gnus-apply-kill-hook
+ (list
+ (lambda ()
+ (cond ((string-match \"control\" gnus-newsgroup-name)
+ (gnus-kill \"Subject\" \"rmgroup\")
+ (gnus-expunge \"X\"))))))")
+
+(defvar gnus-visual-mark-article-hook
+ (list 'gnus-highlight-selected-summary)
+ "*Hook run after selecting an article in the summary buffer.
+It is meant to be used for highlighting the article in some way. It
+is not run if `gnus-visual' is nil.")
+
+(defun gnus-parse-headers-hook nil
+ "*A hook called before parsing the headers.")
+
+(defvar gnus-exit-group-hook nil
+ "*A hook called when exiting (not quitting) summary mode.")
+
+(defvar gnus-suspend-gnus-hook nil
+ "*A hook called when suspending (not exiting) Gnus.")
+
+(defvar gnus-exit-gnus-hook nil
+ "*A hook called when exiting Gnus.")
+
+(defvar gnus-save-newsrc-hook nil
+ "*A hook called when saving the newsrc file.")
+
+(defvar gnus-summary-update-hook
+ (list 'gnus-summary-highlight-line)
+ "*A hook called when a summary line is changed.
+The hook will not be called if `gnus-visual' is nil.
+
+The default function `gnus-summary-highlight-line' will
+highlight the line according to the `gnus-summary-highlight'
+variable.")
+
+(defvar gnus-mark-article-hook (list 'gnus-summary-mark-unread-as-read)
+ "*A hook called when an article is selected for the first time.
+The hook is intended to mark an article as read (or unread)
+automatically when it is selected.")
+
+;; Remove any hilit infestation.
+(add-hook 'gnus-startup-hook
+ (lambda ()
+ (remove-hook 'gnus-summary-prepare-hook
+ 'hilit-rehighlight-buffer-quietly)
+ (remove-hook 'gnus-summary-prepare-hook 'hilit-install-line-hooks)
+ (setq gnus-mark-article-hook '(gnus-summary-mark-unread-as-read))
+ (remove-hook 'gnus-article-prepare-hook
+ 'hilit-rehighlight-buffer-quietly)))
+
+
+\f
+;; Internal variables
+
+;; Avoid highlighting in kill files.
+(defvar gnus-summary-inhibit-highlight nil)
+(defvar gnus-newsgroup-selected-overlay nil)
+
+(defvar gnus-article-mode-map nil)
+(defvar gnus-dribble-buffer nil)
+(defvar gnus-headers-retrieved-by nil)
+(defvar gnus-article-reply nil)
+(defvar gnus-override-method nil)
+(defvar gnus-article-check-size nil)
+
+(defvar gnus-current-score-file nil)
+(defvar gnus-internal-global-score-files nil)
+(defvar gnus-score-file-list nil)
+(defvar gnus-scores-exclude-files nil)
+
+(defvar gnus-current-move-group nil)
+
+(defvar gnus-newsgroup-dependencies nil)
+(defvar gnus-newsgroup-threads nil)
+(defvar gnus-newsgroup-async nil)
+(defconst gnus-group-edit-buffer "*Gnus edit newsgroup*")
+
+(defvar gnus-newsgroup-adaptive nil)
+
+(defvar gnus-summary-display-table nil)
+
+(defconst gnus-group-line-format-alist
+ (list (list ?M 'marked ?c)
+ (list ?S 'subscribed ?c)
+ (list ?L 'level ?d)
+ (list ?N 'number ?s)
+ (list ?I 'number-of-dormant ?d)
+ (list ?T 'number-of-ticked ?d)
+ (list ?R 'number-of-read ?s)
+ (list ?t 'number-total ?d)
+ (list ?y 'number-of-unread-unticked ?s)
+ (list ?i 'number-of-ticked-and-dormant ?d)
+ (list ?g 'group ?s)
+ (list ?G 'qualified-group ?s)
+ (list ?D 'newsgroup-description ?s)
+ (list ?o 'moderated ?c)
+ (list ?O 'moderated-string ?s)
+ (list ?p 'process-marked ?c)
+ (list ?s 'news-server ?s)
+ (list ?n 'news-method ?s)
+ (list ?z 'news-method-string ?s)
+ (list ?u 'user-defined ?s)))
+
+(defconst gnus-summary-line-format-alist
+ (list (list ?N 'number ?d)
+ (list ?S 'subject ?s)
+ (list ?s 'subject-or-nil ?s)
+ (list ?n 'name ?s)
+ (list ?A '(car (cdr (funcall gnus-extract-address-components from)))
+ ?s)
+ (list ?a '(or (car (funcall gnus-extract-address-components from))
+ from) ?s)
+ (list ?F 'from ?s)
+ (list ?x (macroexpand '(mail-header-xref header)) ?s)
+ (list ?D (macroexpand '(mail-header-date header)) ?s)
+ (list ?d '(gnus-dd-mmm (mail-header-date header)) ?s)
+ (list ?M (macroexpand '(mail-header-id header)) ?s)
+ (list ?r (macroexpand '(mail-header-references header)) ?s)
+ (list ?c '(or (mail-header-chars header) 0) ?d)
+ (list ?L 'lines ?d)
+ (list ?I 'indentation ?s)
+ (list ?T '(if (= level 0) "" (make-string (frame-width) ? )) ?s)
+ (list ?R 'replied ?c)
+ (list ?\[ 'opening-bracket ?c)
+ (list ?\] 'closing-bracket ?c)
+ (list ?\> '(make-string level ? ) ?s)
+ (list ?\< '(make-string (max 0 (- 20 level)) ? ) ?s)
+ (list ?i 'score ?d)
+ (list ?z 'score-char ?c)
+ (list ?U 'unread ?c)
+ (list ?t '(gnus-summary-number-of-articles-in-thread
+ (and (boundp 'thread) (car thread)))
+ ?d)
+ (list ?e '(gnus-summary-number-of-articles-in-thread
+ (and (boundp 'thread) (car thread)) t)
+ ?c)
+ (list ?u 'user-defined ?s))
+ "An alist of format specifications that can appear in summary lines,
+and what variables they correspond with, along with the type of the
+variable (string, integer, character, etc).")
+
+(defconst gnus-summary-dummy-line-format-alist
+ (list (list ?S 'subject ?s)
+ (list ?N 'number ?d)
+ (list ?u 'user-defined ?s)))
+
+(defconst gnus-summary-mode-line-format-alist
+ (list (list ?G 'group-name ?s)
+ (list ?g '(gnus-short-group-name group-name) ?s)
+ (list ?A 'article-number ?d)
+ (list ?Z 'unread-and-unselected ?s)
+ (list ?V 'gnus-version ?s)
+ (list ?U 'unread ?d)
+ (list ?S 'subject ?s)
+ (list ?e 'unselected ?d)
+ (list ?u 'user-defined ?s)
+ (list ?b 'buffer-name ?s)
+ (list ?s '(gnus-current-score-file-nondirectory) ?s)))
+
+(defconst gnus-group-mode-line-format-alist
+ (list (list ?S 'news-server ?s)
+ (list ?M 'news-method ?s)
+ (list ?b '(buffer-name) ?s)
+ (list ?u 'user-defined ?s)))
+
+(defvar gnus-have-read-active-file nil)
+
+(defconst gnus-maintainer
+ "gnus-bug@ifi.uio.no (The Gnus Bugfixing Girls + Boys)"
+ "The mail address of the Gnus maintainers.")
+
+(defconst gnus-version "Gnus v5.1"
+ "Version number for this version of Gnus.")
+
+(defvar gnus-info-nodes
+ '((gnus-group-mode "(gnus)The Group Buffer")
+ (gnus-summary-mode "(gnus)The Summary Buffer")
+ (gnus-article-mode "(gnus)The Article Buffer"))
+ "Assoc list of major modes and related Info nodes.")
+
+(defvar gnus-group-buffer "*Group*")
+(defvar gnus-summary-buffer "*Summary*")
+(defvar gnus-article-buffer "*Article*")
+(defvar gnus-server-buffer "*Server*")
+
+(defvar gnus-work-buffer " *gnus work*")
+
+(defvar gnus-buffer-list nil
+ "Gnus buffers that should be killed on exit.")
+
+(defvar gnus-server-alist nil
+ "List of available servers.")
+
+(defvar gnus-variable-list
+ '(gnus-newsrc-options gnus-newsrc-options-n
+ gnus-newsrc-last-checked-date
+ gnus-newsrc-alist gnus-server-alist
+ gnus-killed-list gnus-zombie-list)
+ "Gnus variables saved in the quick startup file.")
+
+(defvar gnus-overload-functions
+ '((news-inews gnus-inews-news "rnewspost"))
+ "Functions overloaded by gnus.
+It is a list of `(original overload &optional file)'.")
+
+(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-newsrc-alist nil
+ "Assoc list of read articles.
+gnus-newsrc-hashtb should be kept so that both hold the same information.")
+
+(defvar gnus-newsrc-hashtb nil
+ "Hashtable of gnus-newsrc-alist.")
+
+(defvar gnus-killed-list nil
+ "List of killed newsgroups.")
+
+(defvar gnus-killed-hashtb nil
+ "Hash table equivalent of gnus-killed-list.")
+
+(defvar gnus-zombie-list nil
+ "List of almost dead newsgroups.")
+
+(defvar gnus-description-hashtb nil
+ "Descriptions of newsgroups.")
+
+(defvar gnus-list-of-killed-groups nil
+ "List of newsgroups that have recently been killed by the user.")
+
+(defvar gnus-active-hashtb nil
+ "Hashtable of active articles.")
+
+(defvar gnus-moderated-list nil
+ "List of moderated newsgroups.")
+
+(defvar gnus-group-marked nil)
+
+(defvar gnus-current-startup-file nil
+ "Startup file for the current host.")
+
+(defvar gnus-last-search-regexp nil
+ "Default regexp for article search command.")
+
+(defvar gnus-last-shell-command nil
+ "Default shell command on article.")
+
+(defvar gnus-current-select-method nil
+ "The current method for selecting a newsgroup.")
+
+(defvar gnus-group-list-mode nil)
+
+(defvar gnus-article-internal-prepare-hook nil)
+
+(defvar gnus-newsgroup-name nil)
+(defvar gnus-newsgroup-begin nil)
+(defvar gnus-newsgroup-end nil)
+(defvar gnus-newsgroup-last-rmail nil)
+(defvar gnus-newsgroup-last-mail nil)
+(defvar gnus-newsgroup-last-folder nil)
+(defvar gnus-newsgroup-last-file nil)
+(defvar gnus-newsgroup-auto-expire nil)
+(defvar gnus-newsgroup-active nil)
+
+(defvar gnus-newsgroup-unreads nil
+ "List of unread articles in the current newsgroup.")
+
+(defvar gnus-newsgroup-unselected nil
+ "List of unselected unread articles in the current newsgroup.")
+
+(defvar gnus-newsgroup-reads nil
+ "Alist of read articles and article marks in the current newsgroup.")
+
+(defvar gnus-newsgroup-marked nil
+ "List of ticked articles in the current newsgroup (a subset of unread art).")
+
+(defvar gnus-newsgroup-killed nil
+ "List of ranges of articles that have been through the scoring process.")
+
+(defvar gnus-newsgroup-kill-headers nil)
+
+(defvar gnus-newsgroup-replied nil
+ "List of articles that have been replied to in the current newsgroup.")
+
+(defvar gnus-newsgroup-expirable nil
+ "List of articles in the current newsgroup that can be expired.")
+
+(defvar gnus-newsgroup-processable nil
+ "List of articles in the current newsgroup that can be processed.")
+
+(defvar gnus-newsgroup-bookmarks nil
+ "List of articles in the current newsgroup that have bookmarks.")
+
+(defvar gnus-newsgroup-dormant nil
+ "List of dormant articles in the current newsgroup.")
+
+(defvar gnus-newsgroup-scored nil
+ "List of scored articles in the current newsgroup.")
+
+(defvar gnus-newsgroup-headers nil
+ "List of article headers in the current newsgroup.")
+(defvar gnus-newsgroup-headers-hashtb-by-number nil)
+
+(defvar gnus-newsgroup-ancient nil
+ "List of `gnus-fetch-old-headers' articles in the current newsgroup.")
+
+(defvar gnus-current-article nil)
+(defvar gnus-article-current nil)
+(defvar gnus-current-headers nil)
+(defvar gnus-have-all-headers nil)
+(defvar gnus-last-article nil)
+(defvar gnus-newsgroup-history nil)
+(defvar gnus-current-kill-article nil)
+
+;; Save window configuration.
+(defvar gnus-prev-winconf nil)
+
+;; Format specs
+(defvar gnus-summary-line-format-spec nil)
+(defvar gnus-summary-dummy-line-format-spec nil)
+(defvar gnus-group-line-format-spec nil)
+(defvar gnus-summary-mode-line-format-spec nil)
+(defvar gnus-article-mode-line-format-spec nil)
+(defvar gnus-group-mode-line-format-spec nil)
+(defvar gnus-summary-mark-positions nil)
+(defvar gnus-group-mark-positions nil)
+
+(defvar gnus-summary-expunge-below nil)
+(defvar gnus-reffed-article-number nil)
+
+; Let the byte-compiler know that we know about this variable.
+(defvar rmail-default-rmail-file)
+
+(defvar gnus-cache-removable-articles nil)
+
+(defconst gnus-summary-local-variables
+ '(gnus-newsgroup-name
+ gnus-newsgroup-begin gnus-newsgroup-end
+ gnus-newsgroup-last-rmail gnus-newsgroup-last-mail
+ gnus-newsgroup-last-folder gnus-newsgroup-last-file
+ gnus-newsgroup-auto-expire gnus-newsgroup-unreads
+ gnus-newsgroup-unselected gnus-newsgroup-marked
+ gnus-newsgroup-reads
+ gnus-newsgroup-replied gnus-newsgroup-expirable
+ gnus-newsgroup-processable gnus-newsgroup-killed
+ gnus-newsgroup-bookmarks gnus-newsgroup-dormant
+ gnus-newsgroup-headers gnus-newsgroup-headers-hashtb-by-number
+ gnus-current-article gnus-current-headers gnus-have-all-headers
+ gnus-last-article gnus-article-internal-prepare-hook
+ gnus-newsgroup-dependencies gnus-newsgroup-selected-overlay
+ gnus-newsgroup-scored gnus-newsgroup-kill-headers
+ gnus-newsgroup-threads gnus-newsgroup-async
+ gnus-score-alist gnus-current-score-file gnus-summary-expunge-below
+ gnus-summary-mark-below gnus-newsgroup-active gnus-scores-exclude-files
+ gnus-newsgroup-history gnus-newsgroup-ancient
+ (gnus-newsgroup-adaptive . gnus-use-adaptive-scoring)
+ gnus-cache-removable-articles)
+ "Variables that are buffer-local to the summary buffers.")
+
+(defconst gnus-bug-message
+ "Sending a bug report to the Gnus Towers.
+========================================
+
+The buffer below is a mail buffer. When you press `C-c C-c', it will
+be sent to the Gnus Bug Exterminators.
+
+At the bottom of the buffer you'll see lots of variable settings.
+Please do not delete those. They will tell the Bug People what your
+environment is, so that it will be easier to locate the bugs.
+
+If you have found a bug that makes Emacs go \"beep\", set
+debug-on-error to t (`M-x set-variable RET debug-on-error RET t RET')
+and include the backtrace in your bug report.
+
+Please describe the bug in annoying, painstaking detail.
+
+Thank you for your help in stamping out bugs.
+")
+
+;;; End of variables.
+
+;; Define some autoload functions Gnus might use.
+(eval-and-compile
+
+ ;; Various
+ (autoload 'metamail-buffer "metamail")
+ (autoload 'Info-goto-node "info")
+ (autoload 'hexl-hex-string-to-integer "hexl")
+ (autoload 'pp "pp")
+ (autoload 'pp-to-string "pp")
+ (autoload 'pp-eval-expression "pp")
+ (autoload 'mail-extract-address-components "mail-extr")
+
+ (autoload 'nnmail-split-fancy "nnmail")
+ (autoload 'nnvirtual-catchup-group "nnvirtual")
+
+ ;; timezone
+ (autoload 'timezone-make-date-arpa-standard "timezone")
+ (autoload 'timezone-fix-time "timezone")
+ (autoload 'timezone-make-sortable-date "timezone")
+ (autoload 'timezone-make-time-string "timezone")
+
+ ;; rmail & friends
+ (autoload 'mail-position-on-field "sendmail")
+ (autoload 'mail-setup "sendmail")
+ (autoload 'rmail-output "rmailout")
+ (autoload 'news-mail-other-window "rnewspost")
+ (autoload 'news-reply-yank-original "rnewspost")
+ (autoload 'news-caesar-buffer-body "rnewspost")
+ (autoload 'rmail-insert-rmail-file-header "rmail")
+ (autoload 'rmail-count-new-messages "rmail")
+ (autoload 'rmail-show-message "rmail")
+
+ ;; gnus-soup
+ ;;(autoload 'gnus-group-brew-soup "gnus-soup" nil t)
+ ;;(autoload 'gnus-brew-soup "gnus-soup" nil t)
+ ;;(autoload 'gnus-soup-add-article "gnus-soup" nil t)
+ ;;(autoload 'gnus-soup-send-replies "gnus-soup" nil t)
+ ;;(autoload 'gnus-soup-save-areas "gnus-soup" nil t)
+ ;;(autoload 'gnus-soup-pack-packet "gnus-soup" nil t)
+ ;;(autoload 'nnsoup-pack-replies "nnsoup" nil t)
+
+ ;; gnus-mh
+ (autoload 'gnus-mail-reply-using-mhe "gnus-mh")
+ (autoload 'gnus-mail-forward-using-mhe "gnus-mh")
+ (autoload 'gnus-mail-other-window-using-mhe "gnus-mh")
+ (autoload 'gnus-summary-save-in-folder "gnus-mh" nil t)
+ (autoload 'gnus-summary-save-article-folder "gnus-mh")
+ (autoload 'gnus-Folder-save-name "gnus-mh")
+ (autoload 'gnus-folder-save-name "gnus-mh")
+
+ ;; gnus-vis misc
+ (autoload 'gnus-group-make-menu-bar "gnus-vis")
+ (autoload 'gnus-summary-make-menu-bar "gnus-vis")
+ (autoload 'gnus-server-make-menu-bar "gnus-vis")
+ (autoload 'gnus-article-make-menu-bar "gnus-vis")
+ (autoload 'gnus-browse-make-menu-bar "gnus-vis")
+ (autoload 'gnus-highlight-selected-summary "gnus-vis")
+ (autoload 'gnus-summary-highlight-line "gnus-vis")
+ (autoload 'gnus-carpal-setup-buffer "gnus-vis")
+
+ ;; gnus-vis article
+ (autoload 'gnus-article-push-button "gnus-vis" nil t)
+ (autoload 'gnus-article-press-button "gnus-vis" nil t)
+ (autoload 'gnus-article-highlight "gnus-vis" nil t)
+ (autoload 'gnus-article-highlight-some "gnus-vis" nil t)
+ (autoload 'gnus-article-hide "gnus-vis" nil t)
+ (autoload 'gnus-article-hide-signature "gnus-vis" nil t)
+ (autoload 'gnus-article-highlight-headers "gnus-vis" nil t)
+ (autoload 'gnus-article-highlight-signature "gnus-vis" nil t)
+ (autoload 'gnus-article-add-buttons "gnus-vis" nil t)
+ (autoload 'gnus-article-next-button "gnus-vis" nil t)
+ (autoload 'gnus-article-add-button "gnus-vis")
+
+ ;; gnus-cite
+ (autoload 'gnus-article-highlight-citation "gnus-cite" nil t)
+ (autoload 'gnus-article-hide-citation-maybe "gnus-cite" nil t)
+ (autoload 'gnus-article-hide-citation "gnus-cite" nil t)
+
+ ;; gnus-kill
+ (autoload 'gnus-kill "gnus-kill")
+ (autoload 'gnus-apply-kill-file-internal "gnus-kill")
+ (autoload 'gnus-kill-file-edit-file "gnus-kill")
+ (autoload 'gnus-kill-file-raise-followups-to-author "gnus-kill")
+ (autoload 'gnus-execute "gnus-kill")
+ (autoload 'gnus-expunge "gnus-kill")
+
+ ;; gnus-cache
+ (autoload 'gnus-cache-possibly-enter-article "gnus-cache")
+ (autoload 'gnus-cache-save-buffers "gnus-cache")
+ (autoload 'gnus-cache-possibly-remove-articles "gnus-cache")
+ (autoload 'gnus-cache-request-article "gnus-cache")
+ (autoload 'gnus-cache-retrieve-headers "gnus-cache")
+ (autoload 'gnus-cache-possibly-alter-active "gnus-cache")
+ (autoload 'gnus-jog-cache "gnus-cache" nil t)
+ (autoload 'gnus-cache-enter-remove-article "gnus-cache")
+
+ ;; gnus-score
+ (autoload 'gnus-summary-increase-score "gnus-score" nil t)
+ (autoload 'gnus-summary-lower-score "gnus-score" nil t)
+ (autoload 'gnus-summary-score-map "gnus-score" nil nil 'keymap)
+ (autoload 'gnus-score-save "gnus-score")
+ (autoload 'gnus-score-headers "gnus-score")
+ (autoload 'gnus-current-score-file-nondirectory "gnus-score")
+ (autoload 'gnus-score-adaptive "gnus-score")
+ (autoload 'gnus-score-remove-lines-adaptive "gnus-score")
+ (autoload 'gnus-score-find-trace "gnus-score")
+
+ ;; gnus-edit
+ (autoload 'gnus-score-customize "gnus-edit" nil t)
+
+ ;; gnus-uu
+ (autoload 'gnus-uu-extract-map "gnus-uu" nil nil 'keymap)
+ (autoload 'gnus-uu-mark-map "gnus-uu" nil nil 'keymap)
+ (autoload 'gnus-uu-digest-mail-forward "gnus-uu" nil t)
+ (autoload 'gnus-uu-digest-post-forward "gnus-uu" nil t)
+ (autoload 'gnus-uu-mark-series "gnus-uu" nil t)
+ (autoload 'gnus-uu-mark-region "gnus-uu" nil t)
+ (autoload 'gnus-uu-mark-by-regexp "gnus-uu" nil t)
+ (autoload 'gnus-uu-mark-all "gnus-uu" nil t)
+ (autoload 'gnus-uu-mark-sparse "gnus-uu" nil t)
+ (autoload 'gnus-uu-mark-thread "gnus-uu" nil t)
+ (autoload 'gnus-uu-decode-uu "gnus-uu" nil t)
+ (autoload 'gnus-uu-decode-uu-and-save "gnus-uu" nil t)
+ (autoload 'gnus-uu-decode-unshar "gnus-uu" nil t)
+ (autoload 'gnus-uu-decode-unshar-and-save "gnus-uu" nil t)
+ (autoload 'gnus-uu-decode-save "gnus-uu" nil t)
+ (autoload 'gnus-uu-decode-binhex "gnus-uu" nil t)
+ (autoload 'gnus-uu-decode-uu-view "gnus-uu" nil t)
+ (autoload 'gnus-uu-decode-uu-and-save-view "gnus-uu" nil t)
+ (autoload 'gnus-uu-decode-unshar-view "gnus-uu" nil t)
+ (autoload 'gnus-uu-decode-unshar-and-save-view "gnus-uu" nil t)
+ (autoload 'gnus-uu-decode-save-view "gnus-uu" nil t)
+ (autoload 'gnus-uu-decode-binhex-view "gnus-uu" nil t)
+
+ ;; gnus-msg
+ (autoload 'gnus-summary-send-map "gnus-msg" nil nil 'keymap)
+ (autoload 'gnus-group-post-news "gnus-msg" nil t)
+ (autoload 'gnus-group-mail "gnus-msg" nil t)
+ (autoload 'gnus-summary-post-news "gnus-msg" nil t)
+ (autoload 'gnus-summary-followup "gnus-msg" nil t)
+ (autoload 'gnus-summary-followup-with-original "gnus-msg" nil t)
+ (autoload 'gnus-summary-followup-and-reply "gnus-msg" nil t)
+ (autoload 'gnus-summary-followup-and-reply-with-original "gnus-msg" nil t)
+ (autoload 'gnus-summary-cancel-article "gnus-msg" nil t)
+ (autoload 'gnus-summary-supersede-article "gnus-msg" nil t)
+ (autoload 'gnus-post-news "gnus-msg" nil t)
+ (autoload 'gnus-inews-news "gnus-msg" nil t)
+ (autoload 'gnus-cancel-news "gnus-msg" nil t)
+ (autoload 'gnus-summary-reply "gnus-msg" nil t)
+ (autoload 'gnus-summary-reply-with-original "gnus-msg" nil t)
+ (autoload 'gnus-summary-mail-forward "gnus-msg" nil t)
+ (autoload 'gnus-summary-mail-other-window "gnus-msg" nil t)
+ (autoload 'gnus-mail-reply-using-mail "gnus-msg")
+ (autoload 'gnus-mail-yank-original "gnus-msg")
+ (autoload 'gnus-mail-send-and-exit "gnus-msg")
+ (autoload 'gnus-mail-forward-using-mail "gnus-msg")
+ (autoload 'gnus-mail-other-window-using-mail "gnus-msg")
+ (autoload 'gnus-article-mail "gnus-msg")
+ (autoload 'gnus-bug "gnus-msg" nil t)
+
+ ;; gnus-vm
+ (autoload 'gnus-summary-save-in-vm "gnus-vm" nil t)
+ (autoload 'gnus-summary-save-article-vm "gnus-vm" nil t)
+ (autoload 'gnus-mail-forward-using-vm "gnus-vm")
+ (autoload 'gnus-mail-reply-using-vm "gnus-vm")
+ (autoload 'gnus-mail-other-window-using-vm "gnus-vm" nil t)
+ (autoload 'gnus-yank-article "gnus-vm" nil t)
+
+ )
+
+\f
+
+;; Fix by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
+;; If you want the cursor to go somewhere else, set these two
+;; functions in some startup hook to whatever you want.
+(defalias 'gnus-summary-position-cursor 'gnus-goto-colon)
+(defalias 'gnus-group-position-cursor 'gnus-goto-colon)
+
+;;; Various macros and substs.
+
+(defmacro gnus-eval-in-buffer-window (buffer &rest forms)
+ "Pop to BUFFER, evaluate FORMS, and then returns to original window."
+ (` (let ((GnusStartBufferWindow (selected-window)))
+ (unwind-protect
+ (progn
+ (pop-to-buffer (, buffer))
+ (,@ forms))
+ (select-window GnusStartBufferWindow)))))
+
+(defmacro gnus-gethash (string hashtable)
+ "Get hash value of STRING in HASHTABLE."
+ ;;(` (symbol-value (abbrev-symbol (, string) (, hashtable))))
+ ;;(` (abbrev-expansion (, string) (, hashtable)))
+ (` (symbol-value (intern-soft (, string) (, hashtable)))))
+
+(defmacro gnus-sethash (string value hashtable)
+ "Set hash value. Arguments are STRING, VALUE, and HASHTABLE."
+ ;; We cannot use define-abbrev since it only accepts string as value.
+ ;; (set (intern string hashtable) value))
+ (` (set (intern (, string) (, hashtable)) (, value))))
+
+(defsubst gnus-buffer-substring (beg end)
+ (buffer-substring (match-beginning beg) (match-end end)))
+
+;; modified by MORIOKA Tomohiko <morioka@jaist.ac.jp>
+;; function `substring' might cut on a middle of multi-octet
+;; character.
+(defun gnus-truncate-string (str width)
+ (substring str 0 width))
+
+;; Added by Geoffrey T. Dairiki <dairiki@u.washington.edu>. A safe way
+;; to limit the length of a string. This function is necessary since
+;; `(substr "abc" 0 30)' pukes with "Args out of range".
+(defsubst gnus-limit-string (str width)
+ (if (> (length str) width)
+ (substring str 0 width)
+ str))
+
+(defsubst gnus-simplify-subject-re (subject)
+ "Remove \"Re:\" from subject lines."
+ (let ((case-fold-search t))
+ (if (string-match "^re: *" subject)
+ (substring subject (match-end 0))
+ subject)))
+
+(defsubst gnus-goto-char (point)
+ (and point (goto-char point)))
+
+(defmacro gnus-buffer-exists-p (buffer)
+ (` (and (, buffer)
+ (funcall (if (stringp (, buffer)) 'get-buffer 'buffer-name)
+ (, buffer)))))
+
+(defmacro gnus-kill-buffer (buffer)
+ (` (if (gnus-buffer-exists-p (, buffer))
+ (kill-buffer (, buffer)))))
+
+(defsubst gnus-point-at-bol ()
+ "Return point at the beginning of line."
+ (let ((p (point)))
+ (beginning-of-line)
+ (prog1
+ (point)
+ (goto-char p))))
+
+(defsubst gnus-point-at-eol ()
+ "Return point at the beginning of line."
+ (let ((p (point)))
+ (end-of-line)
+ (prog1
+ (point)
+ (goto-char p))))
+
+;; Delete the current line (and the next N lines.);
+(defmacro gnus-delete-line (&optional n)
+ (` (delete-region (progn (beginning-of-line) (point))
+ (progn (forward-line (, (or n 1))) (point)))))
+
+;; Suggested by Brian Edmonds <edmonds@cs.ubc.ca>.
+(defvar gnus-init-inhibit nil)
+(defun gnus-read-init-file (&optional inhibit-next)
+ (if gnus-init-inhibit
+ (setq gnus-init-inhibit nil)
+ (setq gnus-init-inhibit inhibit-next)
+ (and gnus-init-file
+ (or (and (file-exists-p gnus-init-file)
+ ;; Don't try to load a directory.
+ (not (file-directory-p gnus-init-file)))
+ (file-exists-p (concat gnus-init-file ".el"))
+ (file-exists-p (concat gnus-init-file ".elc")))
+ (load gnus-init-file nil t))))
+
+;;; Load the user startup file.
+;; (eval '(gnus-read-init-file 'inhibit))
+
+;;; Load the compatibility functions.
+
+(require 'gnus-cus)
+(require 'gnus-ems)
+
+\f
+;;;
+;;; Gnus Utility Functions
+;;;
+
+(defun gnus-extract-address-components (from)
+ (let (name address)
+ ;; First find the address - the thing with the @ in it. This may
+ ;; not be accurate in mail addresses, but does the trick most of
+ ;; the time in news messages.
+ (if (string-match "\\b[^@ \t<>]+[!@][^@ \t<>]+\\b" from)
+ (setq address (substring from (match-beginning 0) (match-end 0))))
+ ;; Then we check whether the "name <address>" format is used.
+ (and address
+ ;; Fix by MORIOKA Tomohiko <morioka@jaist.ac.jp>
+ ;; Linear white space is not required.
+ (string-match (concat "[ \t]*<" (regexp-quote address) ">") from)
+ (and (setq name (substring from 0 (match-beginning 0)))
+ ;; Strip any quotes from the name.
+ (string-match "\".*\"" name)
+ (setq name (substring name 1 (1- (match-end 0))))))
+ ;; If not, then "address (name)" is used.
+ (or name
+ (and (string-match "(.+)" from)
+ (setq name (substring from (1+ (match-beginning 0))
+ (1- (match-end 0)))))
+ (and (string-match "()" from)
+ (setq name address))
+ ;; Fix by MORIOKA Tomohiko <morioka@jaist.ac.jp>.
+ ;; XOVER might not support folded From headers.
+ (and (string-match "(.*" from)
+ (setq name (substring from (1+ (match-beginning 0))
+ (match-end 0)))))
+ ;; Fix by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
+ (list (or name from) (or address from))))
+
+(defun gnus-fetch-field (field)
+ "Return the value of the header FIELD of current article."
+ (save-excursion
+ (save-restriction
+ (let ((case-fold-search t))
+ (gnus-narrow-to-headers)
+ (mail-fetch-field field)))))
+
+(defun gnus-goto-colon ()
+ (beginning-of-line)
+ (search-forward ":" (gnus-point-at-eol) t))
+
+(defun gnus-narrow-to-headers ()
+ (widen)
+ (save-excursion
+ (narrow-to-region
+ (goto-char (point-min))
+ (if (search-forward "\n\n" nil t)
+ (1- (point))
+ (point-max)))))
+
+(defvar gnus-old-specs nil)
+
+(defun gnus-update-format-specifications ()
+ (gnus-make-thread-indent-array)
+
+ (let ((formats '(summary summary-dummy group
+ summary-mode group-mode article-mode))
+ old-format new-format)
+ (while formats
+ (setq new-format (symbol-value
+ (intern (format "gnus-%s-line-format" (car formats)))))
+ (or (and (setq old-format (cdr (assq (car formats) gnus-old-specs)))
+ (equal old-format new-format))
+ (set (intern (format "gnus-%s-line-format-spec" (car formats)))
+ (gnus-parse-format
+ new-format
+ (symbol-value
+ (intern (format "gnus-%s-line-format-alist"
+ (if (eq (car formats) 'article-mode)
+ 'summary-mode (car formats))))))))
+ (setq gnus-old-specs (cons (cons (car formats) new-format)
+ (delq (car formats) gnus-old-specs)))
+ (setq formats (cdr formats))))
+
+ (gnus-update-group-mark-positions)
+ (gnus-update-summary-mark-positions)
+
+ (if (and (string-match "%D" gnus-group-line-format)
+ (not gnus-description-hashtb)
+ gnus-read-active-file)
+ (gnus-read-all-descriptions-files)))
+
+(defun gnus-update-summary-mark-positions ()
+ (save-excursion
+ (let ((gnus-replied-mark 129)
+ (gnus-score-below-mark 130)
+ (gnus-score-over-mark 130)
+ (thread nil)
+ pos)
+ (gnus-set-work-buffer)
+ (gnus-summary-insert-line
+ nil [0 "" "" "" "" "" 0 0 ""] 0 nil 128 t nil "" nil 1)
+ (goto-char (point-min))
+ (setq pos (list (cons 'unread (and (search-forward "\200" nil t)
+ (- (point) 2)))))
+ (goto-char (point-min))
+ (setq pos (cons (cons 'replied (and (search-forward "\201" nil t)
+ (- (point) 2))) pos))
+ (goto-char (point-min))
+ (setq pos (cons (cons 'score (and (search-forward "\202" nil t)
+ (- (point) 2))) pos))
+ (setq gnus-summary-mark-positions pos))))
+
+(defun gnus-update-group-mark-positions ()
+ (save-excursion
+ (let ((gnus-process-mark 128)
+ (gnus-group-marked '("dummy.group")))
+ (gnus-sethash "dummy.group" '(0 . 0) gnus-active-hashtb)
+ (gnus-set-work-buffer)
+ (gnus-group-insert-group-line nil "dummy.group" 0 nil 0 nil)
+ (goto-char (point-min))
+ (setq gnus-group-mark-positions
+ (list (cons 'process (and (search-forward "\200" nil t)
+ (- (point) 2))))))))
+
+(defun gnus-mouse-face-function (form)
+ (` (let ((string (, form)))
+ (put-text-property 0 (length string) 'mouse-face gnus-mouse-face string)
+ string)))
+
+(defun gnus-max-width-function (el max-width)
+ (or (numberp max-width) (signal 'wrong-type-argument '(numberp max-width)))
+ (` (let* ((val (eval (, el)))
+ (valstr (if (numberp val)
+ (int-to-string val) val)))
+ (if (> (length valstr) (, max-width))
+ (substring valstr 0 (, max-width))
+ valstr))))
+
+(defun gnus-parse-format (format spec-alist)
+ ;; This function parses the FORMAT string with the help of the
+ ;; SPEC-ALIST and returns a list that can be eval'ed to return the
+ ;; string. If the FORMAT string contains the specifiers %( and %)
+ ;; the text between them will have the mouse-face text property.
+ (if (string-match "\\`\\(.*\\)%(\\(.*\\)%)\\(.*\n?\\)\\'" format)
+ (if (and gnus-visual gnus-mouse-face)
+ (let ((pre (substring format (match-beginning 1) (match-end 1)))
+ (button (substring format (match-beginning 2) (match-end 2)))
+ (post (substring format (match-beginning 3) (match-end 3))))
+ (list 'concat
+ (gnus-parse-simple-format pre spec-alist)
+ (gnus-mouse-face-function
+ (gnus-parse-simple-format button spec-alist))
+ (gnus-parse-simple-format post spec-alist)))
+ (gnus-parse-simple-format
+ (concat (substring format (match-beginning 1) (match-end 1))
+ (substring format (match-beginning 2) (match-end 2))
+ (substring format (match-beginning 3) (match-end 3)))
+ spec-alist))
+ (gnus-parse-simple-format format spec-alist)))
+
+(defun gnus-parse-simple-format (format spec-alist)
+ ;; This function parses the FORMAT string with the help of the
+ ;; SPEC-ALIST and returns a list that can be eval'ed to return the
+ ;; string. The list will consist of the symbol `format', a format
+ ;; specification string, and a list of forms depending on the
+ ;; SPEC-ALIST.
+ (let ((max-width 0)
+ spec flist fstring newspec elem beg)
+ (save-excursion
+ (gnus-set-work-buffer)
+ (insert format)
+ (goto-char (point-min))
+ (while (re-search-forward "%[-0-9]*\\(,[0-9]+\\)?\\([^0-9]\\)\\(.\\)?" nil t)
+ (setq spec (string-to-char (buffer-substring (match-beginning 2)
+ (match-end 2))))
+ ;; First check if there are any specs that look anything like
+ ;; "%12,12A", ie. with a "max width specification". These have
+ ;; to be treated specially.
+ (if (setq beg (match-beginning 1))
+ (setq max-width
+ (string-to-int
+ (buffer-substring (1+ (match-beginning 1)) (match-end 1))))
+ (setq max-width 0)
+ (setq beg (match-beginning 2)))
+ ;; Find the specification from `spec-alist'.
+ (if (not (setq elem (cdr (assq spec spec-alist))))
+ (setq elem '("*" ?s)))
+ ;; Treat user defined format specifiers specially
+ (and (eq (car elem) 'user-defined)
+ (setq elem
+ (list
+ (list (intern (concat "gnus-user-format-function-"
+ (buffer-substring
+ (match-beginning 3)
+ (match-end 3))))
+ 'header)
+ ?s))
+ (delete-region (match-beginning 3) (match-end 3)))
+ (if (not (zerop max-width))
+ (let ((el (car elem)))
+ (cond ((= (car (cdr elem)) ?c)
+ (setq el (list 'char-to-string el)))
+ ((= (car (cdr elem)) ?d)
+ (numberp el) (setq el (list 'int-to-string el))))
+ (setq flist (cons (gnus-max-width-function el max-width)
+ flist))
+ (setq newspec ?s))
+ (setq flist (cons (car elem) flist))
+ (setq newspec (car (cdr elem))))
+ ;; Remove the old specification (and possibly a ",12" string).
+ (delete-region beg (match-end 2))
+ ;; Insert the new specification.
+ (goto-char beg)
+ (insert newspec))
+ (setq fstring (buffer-substring 1 (point-max))))
+ (cons 'format (cons fstring (nreverse flist)))))
+
+(defun gnus-set-work-buffer ()
+ (if (get-buffer gnus-work-buffer)
+ (progn
+ (set-buffer gnus-work-buffer)
+ (erase-buffer))
+ (set-buffer (get-buffer-create gnus-work-buffer))
+ (kill-all-local-variables)
+ (buffer-disable-undo (current-buffer))
+ (gnus-add-current-to-buffer-list)))
+
+;; Article file names when saving.
+
+(defun gnus-Numeric-save-name (newsgroup headers &optional last-file)
+ "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
+If variable `gnus-use-long-file-name' is nil, it is ~/News/News.group/num.
+Otherwise, it is like ~/News/news/group/num."
+ (let ((default
+ (expand-file-name
+ (concat (if (gnus-use-long-file-name 'not-save)
+ (gnus-capitalize-newsgroup newsgroup)
+ (gnus-newsgroup-directory-form newsgroup))
+ "/" (int-to-string (mail-header-number headers)))
+ (or gnus-article-save-directory "~/News"))))
+ (if (and last-file
+ (string-equal (file-name-directory default)
+ (file-name-directory last-file))
+ (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
+ default
+ (or last-file default))))
+
+(defun gnus-numeric-save-name (newsgroup headers &optional last-file)
+ "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
+If variable `gnus-use-long-file-name' is non-nil, it is
+~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
+ (let ((default
+ (expand-file-name
+ (concat (if (gnus-use-long-file-name 'not-save)
+ newsgroup
+ (gnus-newsgroup-directory-form newsgroup))
+ "/" (int-to-string (mail-header-number headers)))
+ (or gnus-article-save-directory "~/News"))))
+ (if (and last-file
+ (string-equal (file-name-directory default)
+ (file-name-directory last-file))
+ (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
+ default
+ (or last-file default))))
+
+(defun gnus-Plain-save-name (newsgroup headers &optional last-file)
+ "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
+If variable `gnus-use-long-file-name' is non-nil, it is
+~/News/News.group. Otherwise, it is like ~/News/news/group/news."
+ (or last-file
+ (expand-file-name
+ (if (gnus-use-long-file-name 'not-save)
+ (gnus-capitalize-newsgroup newsgroup)
+ (concat (gnus-newsgroup-directory-form newsgroup) "/news"))
+ (or gnus-article-save-directory "~/News"))))
+
+(defun gnus-plain-save-name (newsgroup headers &optional last-file)
+ "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
+If variable `gnus-use-long-file-name' is non-nil, it is
+~/News/news.group. Otherwise, it is like ~/News/news/group/news."
+ (or last-file
+ (expand-file-name
+ (if (gnus-use-long-file-name 'not-save)
+ newsgroup
+ (concat (gnus-newsgroup-directory-form newsgroup) "/news"))
+ (or gnus-article-save-directory "~/News"))))
+
+;; 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 (car (cdr groups))))
+ (progn
+ (setq prefixes (cons prefix prefixes))
+ (message "Descend hierarchy %s? ([y]nsq): "
+ (substring prefix 1 (1- (length prefix))))
+ (setq ans (read-char))
+ (cond ((= ans ?n)
+ (while (and groups
+ (string-match prefix
+ (setq group (car groups))))
+ (setq gnus-killed-list
+ (cons 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))
+ (setq gnus-killed-list (cons group gnus-killed-list))
+ (gnus-sethash group group gnus-killed-hashtb)
+ (setq groups (cdr groups))))
+ (t nil)))
+ (message "Subscribe %s? ([n]yq)" (car groups))
+ (setq ans (read-char))
+ (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))
+ (setq gnus-killed-list (cons group gnus-killed-list))
+ (gnus-sethash group group gnus-killed-hashtb)
+ (setq groups (cdr groups))))
+ (t
+ (setq gnus-killed-list (cons 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."
+ ;; Basic ideas by mike-w@cs.aukuni.ac.nz (Mike Williams)
+ (let ((groups (cdr gnus-newsrc-alist))
+ before)
+ (while (and (not before) groups)
+ (if (string< newgroup (car (car groups)))
+ (setq before (car (car 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 (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 (buffer-substring
+ (match-beginning 1) (match-end 1)))
+ (string< before newgroup)))))
+ ;; Remove tail of newsgroup name (eg. a.b.c -> a.b)
+ (setq groupkey
+ (if (string-match "^\\(.*\\)\\.[^.]+$" groupkey)
+ (substring groupkey (match-beginning 1) (match-end 1)))))
+ (gnus-subscribe-newsgroup newgroup before))))
+
+(defun gnus-subscribe-interactively (newsgroup)
+ "Subscribe new NEWSGROUP 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 " newsgroup))
+ (gnus-subscribe-hierarchically newsgroup)
+ (setq gnus-killed-list (cons newsgroup gnus-killed-list))))
+
+(defun gnus-subscribe-zombies (newsgroup)
+ "Make new NEWSGROUP a zombie group."
+ (setq gnus-zombie-list (cons newsgroup gnus-zombie-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."
+ ;; 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))
+
+;; For directories
+
+(defun gnus-newsgroup-directory-form (newsgroup)
+ "Make hierarchical directory name from NEWSGROUP name."
+ (let ((newsgroup (gnus-newsgroup-savable-name newsgroup))
+ (len (length newsgroup))
+ idx)
+ ;; If this is a foreign group, we don't want to translate the
+ ;; entire name.
+ (if (setq idx (string-match ":" newsgroup))
+ (aset newsgroup idx ?/)
+ (setq idx 0))
+ ;; Replace all occurrences of `.' with `/'.
+ (while (< idx len)
+ (if (= (aref newsgroup idx) ?.)
+ (aset newsgroup idx ?/))
+ (setq idx (1+ idx)))
+ newsgroup))
+
+(defun gnus-newsgroup-savable-name (group)
+ ;; Replace any slashes in a group name (eg. an ange-ftp nndoc group)
+ ;; with dots.
+ (gnus-replace-chars-in-string group ?/ ?.))
+
+(defun gnus-make-directory (dir)
+ "Make DIRECTORY recursively."
+ ;; Why don't we use `(make-directory dir 'parents)'? That's just one
+ ;; of the many mysteries of the universe.
+ (let* ((dir (expand-file-name dir default-directory))
+ dirs err)
+ (if (string-match "/$" dir)
+ (setq dir (substring dir 0 (match-beginning 0))))
+ ;; First go down the path until we find a directory that exists.
+ (while (not (file-exists-p dir))
+ (setq dirs (cons dir dirs))
+ (string-match "/[^/]+$" dir)
+ (setq dir (substring dir 0 (match-beginning 0))))
+ ;; Then create all the subdirs.
+ (while (and dirs (not err))
+ (condition-case ()
+ (make-directory (car dirs))
+ (error (setq err t)))
+ (setq dirs (cdr dirs)))
+ ;; We return whether we were successful or not.
+ (not dirs)))
+
+(defun gnus-capitalize-newsgroup (newsgroup)
+ "Capitalize NEWSGROUP name."
+ (and (not (zerop (length newsgroup)))
+ (concat (char-to-string (upcase (aref newsgroup 0)))
+ (substring newsgroup 1))))
+
+;; Var
+
+(defun gnus-simplify-subject (subject &optional re-only)
+ "Remove `Re:' and words in parentheses.
+If optional argument RE-ONLY is non-nil, strip `Re:' only."
+ (let ((case-fold-search t)) ;Ignore case.
+ ;; Remove `Re:' and `Re^N:'.
+ (if (string-match "^re:[ \t]*" subject)
+ (setq subject (substring subject (match-end 0))))
+ ;; Remove words in parentheses from end.
+ (or re-only
+ (while (string-match "[ \t\n]*([^()]*)[ \t\n]*\\'" subject)
+ (setq subject (substring subject 0 (match-beginning 0)))))
+ ;; Return subject string.
+ subject))
+
+;; Remove any leading "re:"s, any trailing paren phrases, and simplify
+;; all whitespace.
+(defun gnus-simplify-subject-fuzzy (subject)
+ (let ((case-fold-search t))
+ (save-excursion
+ (gnus-set-work-buffer)
+ (insert subject)
+ (inline (gnus-simplify-buffer-fuzzy))
+ (buffer-string))))
+
+(defun gnus-simplify-buffer-fuzzy ()
+ (goto-char (point-min))
+ ;; Fix by Stainless Steel Rat <ratinox@ccs.neu.edu>.
+ (while (re-search-forward "^[ \t]*\\(re\\|fwd\\)[[{(^0-9]*[])}]?[:;][ \t]*"
+ nil t)
+ (replace-match "" t t))
+ (goto-char (point-min))
+ (while (re-search-forward "[ \t\n]*([^()]*)[ \t\n]*$" nil t)
+ (replace-match "" t t))
+ (goto-char (point-min))
+ (while (re-search-forward "[ \t]+" nil t)
+ (replace-match " " t t))
+ (goto-char (point-min))
+ (while (re-search-forward "[ \t]+$" nil t)
+ (replace-match "" t t))
+ (goto-char (point-min))
+ (while (re-search-forward "^[ \t]+" nil t)
+ (replace-match "" t t))
+ (if gnus-simplify-subject-fuzzy-regexp
+ (while (re-search-forward gnus-simplify-subject-fuzzy-regexp nil t)
+ (replace-match "" t t))))
+
+;; Add the current buffer to the list of buffers to be killed on exit.
+(defun gnus-add-current-to-buffer-list ()
+ (or (memq (current-buffer) gnus-buffer-list)
+ (setq gnus-buffer-list (cons (current-buffer) gnus-buffer-list))))
+
+(defun gnus-string> (s1 s2)
+ (not (or (string< s1 s2)
+ (string= s1 s2))))
+
+;; Functions accessing headers.
+;; Functions are more convenient than macros in some cases.
+
+(defun gnus-header-number (header)
+ (mail-header-number header))
+
+(defun gnus-header-subject (header)
+ (mail-header-subject header))
+
+(defun gnus-header-from (header)
+ (mail-header-from header))
+
+(defun gnus-header-xref (header)
+ (mail-header-xref header))
+
+(defun gnus-header-lines (header)
+ (mail-header-lines header))
+
+(defun gnus-header-date (header)
+ (mail-header-date header))
+
+(defun gnus-header-id (header)
+ (mail-header-id header))
+
+(defun gnus-header-message-id (header)
+ (mail-header-id header))
+
+(defun gnus-header-chars (header)
+ (mail-header-chars header))
+
+(defun gnus-header-references (header)
+ (mail-header-references header))
+
+;;; General various misc type functions.
+
+(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-list nil
+ gnus-description-hashtb nil
+ gnus-newsgroup-headers nil
+ gnus-newsgroup-headers-hashtb-by-number nil
+ gnus-newsgroup-name nil
+ gnus-server-alist nil
+ gnus-current-select-method nil)
+ ;; Reset any score variables.
+ (and (boundp 'gnus-score-cache)
+ (set 'gnus-score-cache nil))
+ (and (boundp 'gnus-internal-global-score-files)
+ (set 'gnus-internal-global-score-files nil))
+ ;; 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)))
+ ;; Save any cache buffers.
+ (and gnus-use-cache (gnus-cache-save-buffers))
+ ;; Clear the dribble buffer.
+ (gnus-dribble-clear)
+ ;; Kill global KILL file buffer.
+ (if (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 (car gnus-buffer-list))
+ (setq gnus-buffer-list (cdr gnus-buffer-list))))
+
+(defun gnus-windows-old-to-new (setting)
+ ;; First we take care of the really, really old Gnus 3 actions.
+ (if (symbolp setting)
+ (setq setting
+ (cond ((memq setting '(SelectArticle))
+ 'article)
+ ((memq setting '(SelectSubject ExpandSubject))
+ 'summary)
+ ((memq setting '(SelectNewsgroup ExitNewsgroup))
+ 'group)
+ (t setting))))
+ (if (or (listp setting)
+ (not (and gnus-window-configuration
+ (memq setting '(group summary article)))))
+ setting
+ (let* ((setting (if (eq setting 'group)
+ (if (assq 'newsgroup gnus-window-configuration)
+ 'newsgroup
+ 'newsgroups) setting))
+ (elem (car (cdr (assq setting gnus-window-configuration))))
+ (total (apply '+ elem))
+ (types '(group summary article))
+ (pbuf (if (eq setting 'newsgroups) 'group 'summary))
+ (i 0)
+ perc
+ out)
+ (while (< i 3)
+ (or (not (numberp (nth i elem)))
+ (zerop (nth i elem))
+ (progn
+ (setq perc (/ (* 1.0 (nth 0 elem)) total))
+ (setq out (cons (if (eq pbuf (nth i types))
+ (vector (nth i types) perc 'point)
+ (vector (nth i types) perc))
+ out))))
+ (setq i (1+ i)))
+ (list (nreverse out)))))
+
+(defun gnus-add-configuration (conf)
+ (setq gnus-buffer-configuration
+ (cons conf (delq (assq (car conf) gnus-buffer-configuration)
+ gnus-buffer-configuration))))
+
+(defun gnus-configure-windows (setting &optional force)
+ (setq setting (gnus-windows-old-to-new setting))
+ (let ((r (if (symbolp setting)
+ (cdr (assq setting gnus-buffer-configuration))
+ setting))
+ (in-buf (current-buffer))
+ rule val w height hor ohor heights sub jump-buffer
+ rel total to-buf all-visible)
+ (or r (error "No such setting: %s" setting))
+
+ (if (and (not force) (setq all-visible (gnus-all-windows-visible-p r)))
+ ;; All the windows mentioned are already visible, so we just
+ ;; put point in the assigned buffer, and do not touch the
+ ;; winconf.
+ (select-window (get-buffer-window all-visible t))
+
+
+ ;; Either remove all windows or just remove all Gnus windows.
+ (if gnus-use-full-window
+ (delete-other-windows)
+ (gnus-remove-some-windows)
+ (switch-to-buffer nntp-server-buffer))
+
+ (while r
+ (setq hor (car r)
+ ohor nil)
+
+ ;; We have to do the (possible) horizontal splitting before the
+ ;; vertical.
+ (if (and (listp (car hor))
+ (eq (car (car hor)) 'horizontal))
+ (progn
+ (split-window
+ nil
+ (if (integerp (nth 1 (car hor)))
+ (nth 1 (car hor))
+ (- (frame-width) (floor (* (frame-width) (nth 1 (car hor))))))
+ t)
+ (setq hor (cdr hor))))
+
+ ;; Go through the rules and eval the elements that are to be
+ ;; evalled.
+ (while hor
+ (if (setq val (if (vectorp (car hor)) (car hor) (eval (car hor))))
+ (progn
+ ;; Expand short buffer name.
+ (setq w (aref val 0))
+ (and (setq w (cdr (assq w gnus-window-to-buffer)))
+ (progn
+ (setq val (apply 'vector (mapcar 'identity val)))
+ (aset val 0 w)))
+ (setq ohor (cons val ohor))))
+ (setq hor (cdr hor)))
+ (setq rule (cons (nreverse ohor) rule))
+ (setq r (cdr r)))
+ (setq rule (nreverse rule))
+
+ ;; We tally the window sizes.
+ (setq total (window-height))
+ (while rule
+ (setq hor (car rule))
+ (if (and (listp (car hor)) (eq (car (car hor)) 'horizontal))
+ (setq hor (cdr hor)))
+ (setq sub 0)
+ (while hor
+ (setq rel (aref (car hor) 1)
+ heights (cons
+ (cond ((and (floatp rel) (= 1.0 rel))
+ 'x)
+ ((integerp rel)
+ rel)
+ (t
+ (max (floor (* total rel)) 4)))
+ heights)
+ sub (+ sub (if (numberp (car heights)) (car heights) 0))
+ hor (cdr hor)))
+ (setq heights (nreverse heights)
+ hor (car rule))
+
+ ;; We then go through these heights and create windows for them.
+ (while heights
+ (setq height (car heights)
+ heights (cdr heights))
+ (and (eq height 'x)
+ (setq height (- total sub)))
+ (and heights
+ (split-window nil height))
+ (setq to-buf (aref (car hor) 0))
+ (switch-to-buffer
+ (cond ((not to-buf)
+ in-buf)
+ ((symbolp to-buf)
+ (symbol-value (aref (car hor) 0)))
+ (t
+ (aref (car hor) 0))))
+ (and (> (length (car hor)) 2)
+ (eq (aref (car hor) 2) 'point)
+ (setq jump-buffer (current-buffer)))
+ (other-window 1)
+ (setq hor (cdr hor)))
+
+ (setq rule (cdr rule)))
+
+ ;; Finally, we pop to the buffer that's supposed to have point.
+ (or jump-buffer (error "Missing `point' in spec for %s" setting))
+
+ (select-window (get-buffer-window jump-buffer t))
+ (set-buffer jump-buffer))))
+
+(defun gnus-all-windows-visible-p (rule)
+ (let (invisible hor jump-buffer val buffer)
+ ;; Go through the rules and eval the elements that are to be
+ ;; evalled.
+ (while (and rule (not invisible))
+ (setq hor (car rule)
+ rule (cdr rule))
+ (while (and hor (not invisible))
+ (if (setq val (if (vectorp (car hor))
+ (car hor)
+ (if (not (eq (car (car hor)) 'horizontal))
+ (eval (car hor)))))
+ (progn
+ ;; Expand short buffer name.
+ (setq buffer (or (cdr (assq (aref val 0) gnus-window-to-buffer))
+ (aref val 0)))
+ (setq buffer (if (symbolp buffer) (symbol-value buffer)
+ buffer))
+ (and (> (length val) 2) (eq 'point (aref val 2))
+ (setq jump-buffer buffer))
+ (setq invisible (not (and buffer (get-buffer-window buffer))))))
+ (setq hor (cdr hor))))
+ (and (not invisible) jump-buffer)))
+
+(defun gnus-window-top-edge (&optional window)
+ (nth 1 (window-edges window)))
+
+(defun gnus-remove-some-windows ()
+ (let ((buffers gnus-window-to-buffer)
+ buf bufs lowest-buf lowest)
+ (save-excursion
+ ;; Remove windows on all known Gnus buffers.
+ (while buffers
+ (setq buf (cdr (car buffers)))
+ (if (symbolp buf)
+ (setq buf (and (boundp buf) (symbol-value buf))))
+ (and buf
+ (get-buffer-window buf)
+ (progn
+ (setq bufs (cons buf bufs))
+ (pop-to-buffer buf)
+ (if (or (not lowest)
+ (< (gnus-window-top-edge) lowest))
+ (progn
+ (setq lowest (gnus-window-top-edge))
+ (setq lowest-buf buf)))))
+ (setq buffers (cdr buffers)))
+ ;; Remove windows on *all* summary buffers.
+ (let (wins)
+ (walk-windows
+ (lambda (win)
+ (let ((buf (window-buffer win)))
+ (if (string-match "^\\*Summary" (buffer-name buf))
+ (progn
+ (setq bufs (cons buf bufs))
+ (pop-to-buffer buf)
+ (if (or (not lowest)
+ (< (gnus-window-top-edge) lowest))
+ (progn
+ (setq lowest-buf buf)
+ (setq lowest (gnus-window-top-edge))))))))))
+ (and lowest-buf
+ (progn
+ (pop-to-buffer lowest-buf)
+ (switch-to-buffer nntp-server-buffer)))
+ (while bufs
+ (and (not (eq (car bufs) lowest-buf))
+ (delete-windows-on (car bufs)))
+ (setq bufs (cdr bufs))))))
+
+(defun gnus-version ()
+ "Version numbers of this version of Gnus."
+ (interactive)
+ (let ((methods gnus-valid-select-methods)
+ (mess gnus-version)
+ meth)
+ ;; Go through all the legal select methods and add their version
+ ;; numbers to the total version string. Only the backends that are
+ ;; currently in use will have their message numbers taken into
+ ;; consideration.
+ (while methods
+ (setq meth (intern (concat (car (car methods)) "-version")))
+ (and (boundp meth)
+ (stringp (symbol-value meth))
+ (setq mess (concat mess "; " (symbol-value meth))))
+ (setq methods (cdr methods)))
+ (gnus-message 2 mess)))
+
+(defun gnus-info-find-node ()
+ "Find Info documentation of Gnus."
+ (interactive)
+ ;; Enlarge info window if needed.
+ (let ((mode major-mode))
+ (gnus-configure-windows 'info)
+ (Info-goto-node (car (cdr (assq mode gnus-info-nodes))))))
+
+(defun gnus-overload-functions (&optional overloads)
+ "Overload functions specified by optional argument OVERLOADS.
+If nothing is specified, use the variable gnus-overload-functions."
+ (let ((defs nil)
+ (overloads (or overloads gnus-overload-functions)))
+ (while overloads
+ (setq defs (car overloads))
+ (setq overloads (cdr overloads))
+ ;; Load file before overloading function if necessary. Make
+ ;; sure we cannot use `require' always.
+ (and (not (fboundp (car defs)))
+ (car (cdr (cdr defs)))
+ (load (car (cdr (cdr defs))) nil 'nomessage))
+ (fset (car defs) (car (cdr defs))))))
+
+(defun gnus-replace-chars-in-string (string &rest pairs)
+ "Replace characters in STRING from FROM to TO."
+ (let ((string (substring string 0)) ;Copy string.
+ (len (length string))
+ (idx 0)
+ sym to)
+ (or (zerop (% (length pairs) 2))
+ (error "Odd number of translation pairs"))
+ (setplist 'sym pairs)
+ ;; Replace all occurrences of FROM with TO.
+ (while (< idx len)
+ (if (setq to (get 'sym (aref string idx)))
+ (aset string idx to))
+ (setq idx (1+ idx)))
+ string))
+
+(defun gnus-days-between (date1 date2)
+ ;; Return the number of days between date1 and date2.
+ (- (gnus-day-number date1) (gnus-day-number date2)))
+
+(defun gnus-day-number (date)
+ (let ((dat (mapcar (lambda (s) (and s (string-to-int s)) )
+ (timezone-parse-date date))))
+ (timezone-absolute-from-gregorian
+ (nth 1 dat) (nth 2 dat) (car dat))))
+
+;; Returns a floating point number that says how many seconds have
+;; lapsed between Jan 1 12:00:00 1970 and DATE.
+(defun gnus-seconds-since-epoch (date)
+ (let* ((tdate (mapcar (lambda (ti) (and ti (string-to-int ti)))
+ (timezone-parse-date date)))
+ (ttime (mapcar (lambda (ti) (and ti (string-to-int ti)))
+ (timezone-parse-time
+ (aref (timezone-parse-date date) 3))))
+ (edate (mapcar (lambda (ti) (and ti (string-to-int ti)))
+ (timezone-parse-date "Jan 1 12:00:00 1970")))
+ (tday (- (timezone-absolute-from-gregorian
+ (nth 1 tdate) (nth 2 tdate) (nth 0 tdate))
+ (timezone-absolute-from-gregorian
+ (nth 1 edate) (nth 2 edate) (nth 0 edate)))))
+ (+ (nth 2 ttime)
+ (* (nth 1 ttime) 60)
+ (* 1.0 (nth 0 ttime) 60 60)
+ (* 1.0 tday 60 60 24))))
+
+(defun gnus-file-newer-than (file date)
+ (let ((fdate (nth 5 (file-attributes file))))
+ (or (> (car fdate) (car date))
+ (and (= (car fdate) (car date))
+ (> (nth 1 fdate) (nth 1 date))))))
+
+(defun gnus-group-read-only-p (&optional group)
+ "Check whether GROUP supports editing or not.
+If GROUP is nil, `gnus-newsgroup-name' will be checked instead. Note
+that that variable is buffer-local to the summary buffers."
+ (let ((group (or group gnus-newsgroup-name)))
+ (not (gnus-check-backend-function 'request-replace-article group))))
+
+;; Two silly functions to ensure that all `y-or-n-p' questions clear
+;; the echo area.
+(defun gnus-y-or-n-p (prompt)
+ (prog1
+ (y-or-n-p prompt)
+ (message "")))
+
+(defun gnus-yes-or-no-p (prompt)
+ (prog1
+ (yes-or-no-p prompt)
+ (message "")))
+
+;; Check whether to use long file names.
+(defun gnus-use-long-file-name (symbol)
+ ;; The variable has to be set...
+ (and gnus-use-long-file-name
+ ;; If it isn't a list, then we return t.
+ (or (not (listp gnus-use-long-file-name))
+ ;; If it is a list, and the list contains `symbol', we
+ ;; return nil.
+ (not (memq symbol gnus-use-long-file-name)))))
+
+;; I suspect there's a better way, but I haven't taken the time to do
+;; it yet. -erik selberg@cs.washington.edu
+(defun gnus-dd-mmm (messy-date)
+ "Return a string like DD-MMM from a big messy string"
+ (let ((datevec (timezone-parse-date messy-date)))
+ (format "%2s-%s"
+ (or (aref datevec 2) "??")
+ (capitalize
+ (or (car
+ (nth (1- (string-to-number (aref datevec 1)))
+ timezone-months-assoc))
+ "???")))))
+
+;; Make a hash table (default and minimum size is 255).
+;; Optional argument HASHSIZE specifies the table size.
+(defun gnus-make-hashtable (&optional hashsize)
+ (make-vector (if hashsize (max (gnus-create-hash-size hashsize) 255) 255) 0))
+
+;; Make a number that is suitable for hashing; bigger than MIN and one
+;; less than 2^x.
+(defun gnus-create-hash-size (min)
+ (let ((i 1))
+ (while (< i min)
+ (setq i (* 2 i)))
+ (1- i)))
+
+;; Show message if message has a lower level than `gnus-verbose'.
+;; Guide-line for numbers:
+;; 1 - error messages, 3 - non-serious error messages, 5 - messages
+;; for things that take a long time, 7 - not very important messages
+;; on stuff, 9 - messages inside loops.
+(defun gnus-message (level &rest args)
+ (if (<= level gnus-verbose)
+ (apply 'message args)
+ ;; We have to do this format thingy here even if the result isn't
+ ;; shown - the return value has to be the same as the return value
+ ;; from `message'.
+ (apply 'format args)))
+
+;; Generate a unique new group name.
+(defun gnus-generate-new-group-name (leaf)
+ (let ((name leaf)
+ (num 0))
+ (while (gnus-gethash name gnus-newsrc-hashtb)
+ (setq name (concat leaf "<" (int-to-string (setq num (1+ num))) ">")))
+ name))
+
+(defun gnus-ephemeral-group-p (group)
+ "Say whether GROUP is ephemeral or not."
+ (assoc 'quit-config (gnus-find-method-for-group group)))
+
+(defun gnus-group-quit-config (group)
+ "Return the quit-config of GROUP."
+ (nth 1 (assoc 'quit-config (gnus-find-method-for-group group))))
+
+(defun gnus-simplify-mode-line ()
+ "Make mode lines a bit simpler."
+ (setq mode-line-modified "-- ")
+ (if (listp mode-line-format)
+ (progn
+ (make-local-variable 'mode-line-format)
+ (setq mode-line-format (copy-sequence mode-line-format))
+ (and (equal (nth 3 mode-line-format) " ")
+ (setcar (nthcdr 3 mode-line-format) "")))))
+
+;;; List and range functions
+
+(defun gnus-last-element (list)
+ "Return last element of LIST."
+ (while (cdr list)
+ (setq list (cdr list)))
+ (car list))
+
+(defun gnus-copy-sequence (list)
+ "Do a complete, total copy of a list."
+ (if (and (consp list) (not (consp (cdr list))))
+ (cons (car list) (cdr list))
+ (mapcar (lambda (elem) (if (consp elem)
+ (if (consp (cdr elem))
+ (gnus-copy-sequence elem)
+ (cons (car elem) (cdr elem)))
+ elem))
+ list)))
+
+(defun gnus-set-difference (list1 list2)
+ "Return a list of elements of LIST1 that do not appear in LIST2."
+ (let ((list1 (copy-sequence list1)))
+ (while list2
+ (setq list1 (delq (car list2) list1))
+ (setq list2 (cdr list2)))
+ list1))
+
+(defun gnus-sorted-complement (list1 list2)
+ "Return a list of elements of LIST1 that do not appear in LIST2.
+Both lists have to be sorted over <."
+ (let (out)
+ (if (or (null list1) (null list2))
+ (or list1 list2)
+ (while (and list1 list2)
+ (cond ((= (car list1) (car list2))
+ (setq list1 (cdr list1)
+ list2 (cdr list2)))
+ ((< (car list1) (car list2))
+ (setq out (cons (car list1) out))
+ (setq list1 (cdr list1)))
+ (t
+ (setq out (cons (car list2) out))
+ (setq list2 (cdr list2)))))
+ (nconc (nreverse out) (or list1 list2)))))
+
+(defun gnus-intersection (list1 list2)
+ (let ((result nil))
+ (while list2
+ (if (memq (car list2) list1)
+ (setq result (cons (car list2) result)))
+ (setq list2 (cdr list2)))
+ result))
+
+(defun gnus-sorted-intersection (list1 list2)
+ ;; LIST1 and LIST2 have to be sorted over <.
+ (let (out)
+ (while (and list1 list2)
+ (cond ((= (car list1) (car list2))
+ (setq out (cons (car list1) out)
+ list1 (cdr list1)
+ list2 (cdr list2)))
+ ((< (car list1) (car list2))
+ (setq list1 (cdr list1)))
+ (t
+ (setq list2 (cdr list2)))))
+ (nreverse out)))
+
+(defun gnus-set-sorted-intersection (list1 list2)
+ ;; LIST1 and LIST2 have to be sorted over <.
+ ;; This function modifies LIST1.
+ (let* ((top (cons nil list1))
+ (prev top))
+ (while (and list1 list2)
+ (cond ((= (car list1) (car list2))
+ (setq prev list1
+ list1 (cdr list1)
+ list2 (cdr list2)))
+ ((< (car list1) (car list2))
+ (setcdr prev (cdr list1))
+ (setq list1 (cdr list1)))
+ (t
+ (setq list2 (cdr list2)))))
+ (setcdr prev nil)
+ (cdr top)))
+
+(defun gnus-compress-sequence (numbers &optional always-list)
+ "Convert list of numbers to a list of ranges or a single range.
+If ALWAYS-LIST is non-nil, this function will always release a list of
+ranges."
+ (let* ((first (car numbers))
+ (last (car numbers))
+ result)
+ (if (null numbers)
+ nil
+ (if (not (listp (cdr numbers)))
+ numbers
+ (while numbers
+ (cond ((= last (car numbers)) nil) ;Omit duplicated number
+ ((= (1+ last) (car numbers)) ;Still in sequence
+ (setq last (car numbers)))
+ (t ;End of one sequence
+ (setq result
+ (cons (if (= first last) first
+ (cons first last)) result))
+ (setq first (car numbers))
+ (setq last (car numbers))))
+ (setq numbers (cdr numbers)))
+ (if (and (not always-list) (null result))
+ (if (= first last) (list first) (cons first last))
+ (nreverse (cons (if (= first last) first (cons first last))
+ result)))))))
+
+(defalias 'gnus-uncompress-sequence 'gnus-uncompress-range)
+(defun gnus-uncompress-range (ranges)
+ "Expand a list of ranges into a list of numbers.
+RANGES is either a single range on the form `(num . num)' or a list of
+these ranges."
+ (let (first last result)
+ (cond
+ ((null ranges)
+ nil)
+ ((not (listp (cdr ranges)))
+ (setq first (car ranges))
+ (setq last (cdr ranges))
+ (while (<= first last)
+ (setq result (cons first result))
+ (setq first (1+ first)))
+ (nreverse result))
+ (t
+ (while ranges
+ (if (atom (car ranges))
+ (if (numberp (car ranges))
+ (setq result (cons (car ranges) result)))
+ (setq first (car (car ranges)))
+ (setq last (cdr (car ranges)))
+ (while (<= first last)
+ (setq result (cons first result))
+ (setq first (1+ first))))
+ (setq ranges (cdr ranges)))
+ (nreverse result)))))
+
+(defun gnus-add-to-range (ranges list)
+ "Return a list of ranges that has all articles from both RANGES and LIST.
+Note: LIST has to be sorted over `<'."
+ (if (not ranges)
+ (gnus-compress-sequence list t)
+ (setq list (copy-sequence list))
+ (or (listp (cdr ranges))
+ (setq ranges (list ranges)))
+ (let ((out ranges)
+ ilist lowest highest temp)
+ (while (and ranges list)
+ (setq ilist list)
+ (setq lowest (or (and (atom (car ranges)) (car ranges))
+ (car (car ranges))))
+ (while (and list (cdr list) (< (car (cdr list)) lowest))
+ (setq list (cdr list)))
+ (if (< (car ilist) lowest)
+ (progn
+ (setq temp list)
+ (setq list (cdr list))
+ (setcdr temp nil)
+ (setq out (nconc (gnus-compress-sequence ilist t) out))))
+ (setq highest (or (and (atom (car ranges)) (car ranges))
+ (cdr (car ranges))))
+ (while (and list (<= (car list) highest))
+ (setq list (cdr list)))
+ (setq ranges (cdr ranges)))
+ (if list
+ (setq out (nconc (gnus-compress-sequence list t) out)))
+ (setq out (sort out (lambda (r1 r2)
+ (< (or (and (atom r1) r1) (car r1))
+ (or (and (atom r2) r2) (car r2))))))
+ (setq ranges out)
+ (while ranges
+ (if (atom (car ranges))
+ (if (cdr ranges)
+ (if (atom (car (cdr ranges)))
+ (if (= (1+ (car ranges)) (car (cdr ranges)))
+ (progn
+ (setcar ranges (cons (car ranges)
+ (car (cdr ranges))))
+ (setcdr ranges (cdr (cdr ranges)))))
+ (if (= (1+ (car ranges)) (car (car (cdr ranges))))
+ (progn
+ (setcar (car (cdr ranges)) (car ranges))
+ (setcar ranges (car (cdr ranges)))
+ (setcdr ranges (cdr (cdr ranges)))))))
+ (if (cdr ranges)
+ (if (atom (car (cdr ranges)))
+ (if (= (1+ (cdr (car ranges))) (car (cdr ranges)))
+ (progn
+ (setcdr (car ranges) (car (cdr ranges)))
+ (setcdr ranges (cdr (cdr ranges)))))
+ (if (= (1+ (cdr (car ranges))) (car (car (cdr ranges))))
+ (progn
+ (setcdr (car ranges) (cdr (car (cdr ranges))))
+ (setcdr ranges (cdr (cdr ranges))))))))
+ (setq ranges (cdr ranges)))
+ out)))
+
+(defun gnus-remove-from-range (ranges list)
+ "Return a list of ranges that has all articles from LIST removed from RANGES.
+Note: LIST has to be sorted over `<'."
+ ;; !!! This function shouldn't look like this, but I've got a headache.
+ (gnus-compress-sequence
+ (gnus-sorted-complement
+ (gnus-uncompress-range ranges) list)))
+
+(defun gnus-member-of-range (number ranges)
+ (if (not (listp (cdr ranges)))
+ (and (>= number (car ranges))
+ (<= number (cdr ranges)))
+ (let ((not-stop t))
+ (while (and ranges
+ (if (numberp (car ranges))
+ (>= number (car ranges))
+ (>= number (car (car ranges))))
+ not-stop)
+ (if (if (numberp (car ranges))
+ (= number (car ranges))
+ (and (>= number (car (car ranges)))
+ (<= number (cdr (car ranges)))))
+ (setq not-stop nil))
+ (setq ranges (cdr ranges)))
+ (not not-stop))))
+
+\f
+;;;
+;;; Gnus group mode
+;;;
+
+(defvar gnus-group-mode-map nil)
+(defvar gnus-group-group-map nil)
+(defvar gnus-group-mark-map nil)
+(defvar gnus-group-list-map nil)
+(defvar gnus-group-help-map nil)
+(defvar gnus-group-sub-map nil)
+(put 'gnus-group-mode 'mode-class 'special)
+
+(if gnus-group-mode-map
+ nil
+ (setq gnus-group-mode-map (make-keymap))
+ (suppress-keymap gnus-group-mode-map)
+ (define-key gnus-group-mode-map " " 'gnus-group-read-group)
+ (define-key gnus-group-mode-map "=" 'gnus-group-select-group)
+ (define-key gnus-group-mode-map "\r" 'gnus-group-select-group)
+ (define-key gnus-group-mode-map "j" 'gnus-group-jump-to-group)
+ (define-key gnus-group-mode-map "n" 'gnus-group-next-unread-group)
+ (define-key gnus-group-mode-map "p" 'gnus-group-prev-unread-group)
+ (define-key gnus-group-mode-map "\177" 'gnus-group-prev-unread-group)
+ (define-key gnus-group-mode-map "N" 'gnus-group-next-group)
+ (define-key gnus-group-mode-map "P" 'gnus-group-prev-group)
+ (define-key gnus-group-mode-map
+ "\M-n" 'gnus-group-next-unread-group-same-level)
+ (define-key gnus-group-mode-map
+ "\M-p" 'gnus-group-prev-unread-group-same-level)
+ (define-key gnus-group-mode-map "," 'gnus-group-best-unread-group)
+ (define-key gnus-group-mode-map "." 'gnus-group-first-unread-group)
+ (define-key gnus-group-mode-map "u" 'gnus-group-unsubscribe-current-group)
+ (define-key gnus-group-mode-map "U" 'gnus-group-unsubscribe-group)
+ (define-key gnus-group-mode-map "c" 'gnus-group-catchup-current)
+ (define-key gnus-group-mode-map "C" 'gnus-group-catchup-current-all)
+ (define-key gnus-group-mode-map "l" 'gnus-group-list-groups)
+ (define-key gnus-group-mode-map "L" 'gnus-group-list-all-groups)
+ (define-key gnus-group-mode-map "m" 'gnus-group-mail)
+ (define-key gnus-group-mode-map "g" 'gnus-group-get-new-news)
+ (define-key gnus-group-mode-map "\M-g" 'gnus-group-get-new-news-this-group)
+ (define-key gnus-group-mode-map "R" 'gnus-group-restart)
+ (define-key gnus-group-mode-map "r" 'gnus-group-read-init-file)
+ (define-key gnus-group-mode-map "B" 'gnus-group-browse-foreign-server)
+ (define-key gnus-group-mode-map "b" 'gnus-group-check-bogus-groups)
+ (define-key gnus-group-mode-map "F" 'gnus-find-new-newsgroups)
+ (define-key gnus-group-mode-map "\C-c\C-d" 'gnus-group-describe-group)
+ (define-key gnus-group-mode-map "\M-d" 'gnus-group-describe-all-groups)
+ (define-key gnus-group-mode-map "\C-c\C-a" 'gnus-group-apropos)
+ (define-key gnus-group-mode-map "\C-c\M-\C-a" 'gnus-group-description-apropos)
+ (define-key gnus-group-mode-map "a" 'gnus-group-post-news)
+ (define-key gnus-group-mode-map "\ek" 'gnus-group-edit-local-kill)
+ (define-key gnus-group-mode-map "\eK" 'gnus-group-edit-global-kill)
+ (define-key gnus-group-mode-map "\C-k" 'gnus-group-kill-group)
+ (define-key gnus-group-mode-map "\C-y" 'gnus-group-yank-group)
+ (define-key gnus-group-mode-map "\C-w" 'gnus-group-kill-region)
+ (define-key gnus-group-mode-map "\C-x\C-t" 'gnus-group-transpose-groups)
+ (define-key gnus-group-mode-map "\C-c\C-l" 'gnus-group-list-killed)
+ (define-key gnus-group-mode-map "\C-c\C-x" 'gnus-group-expire-articles)
+ (define-key gnus-group-mode-map "\C-c\M-\C-x" 'gnus-group-expire-all-groups)
+ (define-key gnus-group-mode-map "V" 'gnus-version)
+ (define-key gnus-group-mode-map "s" 'gnus-group-save-newsrc)
+ (define-key gnus-group-mode-map "z" 'gnus-group-suspend)
+ (define-key gnus-group-mode-map "Z" 'gnus-group-clear-dribble)
+ (define-key gnus-group-mode-map "q" 'gnus-group-exit)
+ (define-key gnus-group-mode-map "Q" 'gnus-group-quit)
+ (define-key gnus-group-mode-map "?" 'gnus-group-describe-briefly)
+ (define-key gnus-group-mode-map "\C-c\C-i" 'gnus-info-find-node)
+ (define-key gnus-group-mode-map "\M-e" 'gnus-group-edit-group-method)
+ (define-key gnus-group-mode-map "^" 'gnus-group-enter-server-mode)
+ (define-key gnus-group-mode-map gnus-mouse-2 'gnus-mouse-pick-group)
+ (define-key gnus-group-mode-map "<" 'beginning-of-buffer)
+ (define-key gnus-group-mode-map ">" 'end-of-buffer)
+ (define-key gnus-group-mode-map "\C-c\C-b" 'gnus-bug)
+ (define-key gnus-group-mode-map "\C-c\C-s" 'gnus-group-sort-groups)
+
+ (define-key gnus-group-mode-map "#" 'gnus-group-mark-group)
+ (define-key gnus-group-mode-map "\M-#" 'gnus-group-unmark-group)
+ (define-prefix-command 'gnus-group-mark-map)
+ (define-key gnus-group-mode-map "M" 'gnus-group-mark-map)
+ (define-key gnus-group-mark-map "m" 'gnus-group-mark-group)
+ (define-key gnus-group-mark-map "u" 'gnus-group-unmark-group)
+ (define-key gnus-group-mark-map "w" 'gnus-group-mark-region)
+
+ (define-prefix-command 'gnus-group-group-map)
+ (define-key gnus-group-mode-map "G" 'gnus-group-group-map)
+ (define-key gnus-group-group-map "d" 'gnus-group-make-directory-group)
+ (define-key gnus-group-group-map "h" 'gnus-group-make-help-group)
+ (define-key gnus-group-group-map "a" 'gnus-group-make-archive-group)
+ (define-key gnus-group-group-map "k" 'gnus-group-make-kiboze-group)
+ (define-key gnus-group-group-map "m" 'gnus-group-make-group)
+ (define-key gnus-group-group-map "E" 'gnus-group-edit-group)
+ (define-key gnus-group-group-map "e" 'gnus-group-edit-group-method)
+ (define-key gnus-group-group-map "p" 'gnus-group-edit-group-parameters)
+ (define-key gnus-group-group-map "v" 'gnus-group-add-to-virtual)
+ (define-key gnus-group-group-map "V" 'gnus-group-make-empty-virtual)
+ (define-key gnus-group-group-map "D" 'gnus-group-enter-directory)
+ (define-key gnus-group-group-map "f" 'gnus-group-make-doc-group)
+ ;;(define-key gnus-group-group-map "sb" 'gnus-group-brew-soup)
+ ;;(define-key gnus-group-group-map "sw" 'gnus-soup-save-areas)
+ ;;(define-key gnus-group-group-map "ss" 'gnus-soup-send-replies)
+ ;;(define-key gnus-group-group-map "sp" 'gnus-soup-pack-packet)
+ ;;(define-key gnus-group-group-map "sr" 'nnsoup-pack-replies)
+
+ (define-prefix-command 'gnus-group-list-map)
+ (define-key gnus-group-mode-map "A" 'gnus-group-list-map)
+ (define-key gnus-group-list-map "k" 'gnus-group-list-killed)
+ (define-key gnus-group-list-map "z" 'gnus-group-list-zombies)
+ (define-key gnus-group-list-map "s" 'gnus-group-list-groups)
+ (define-key gnus-group-list-map "u" 'gnus-group-list-all-groups)
+ (define-key gnus-group-list-map "a" 'gnus-group-apropos)
+ (define-key gnus-group-list-map "d" 'gnus-group-description-apropos)
+ (define-key gnus-group-list-map "m" 'gnus-group-list-matching)
+ (define-key gnus-group-list-map "M" 'gnus-group-list-all-matching)
+
+ (define-prefix-command 'gnus-group-help-map)
+ (define-key gnus-group-mode-map "H" 'gnus-group-help-map)
+ (define-key gnus-group-help-map "f" 'gnus-group-fetch-faq)
+
+ (define-prefix-command 'gnus-group-sub-map)
+ (define-key gnus-group-mode-map "S" 'gnus-group-sub-map)
+ (define-key gnus-group-sub-map "l" 'gnus-group-set-current-level)
+ (define-key gnus-group-sub-map "t" 'gnus-group-unsubscribe-current-group)
+ (define-key gnus-group-sub-map "s" 'gnus-group-unsubscribe-group)
+ (define-key gnus-group-sub-map "k" 'gnus-group-kill-group)
+ (define-key gnus-group-sub-map "y" 'gnus-group-yank-group)
+ (define-key gnus-group-sub-map "w" 'gnus-group-kill-region)
+ (define-key gnus-group-sub-map "z" 'gnus-group-kill-all-zombies))
+
+(defun gnus-group-mode ()
+ "Major mode for reading news.
+
+All normal editing commands are switched off.
+\\<gnus-group-mode-map>
+The group buffer lists (some of) the groups available. For instance,
+`\\[gnus-group-list-groups]' will list all subscribed groups with unread articles, while `\\[gnus-group-list-zombies]'
+lists all zombie groups.
+
+Groups that are displayed can be entered with `\\[gnus-group-read-group]'. To subscribe
+to a group not displayed, type `\\[gnus-group-unsubscribe-group]'.
+
+For more in-depth information on this mode, read the manual (`\\[gnus-info-find-node]').
+
+The following commands are available:
+
+\\{gnus-group-mode-map}"
+ (interactive)
+ (if gnus-visual (gnus-group-make-menu-bar))
+ (kill-all-local-variables)
+ (gnus-simplify-mode-line)
+ (setq major-mode 'gnus-group-mode)
+ (setq mode-name "Group")
+ (gnus-group-set-mode-line)
+ (setq mode-line-process nil)
+ (use-local-map gnus-group-mode-map)
+ (buffer-disable-undo (current-buffer))
+ (setq truncate-lines t)
+ (setq buffer-read-only t)
+ (run-hooks 'gnus-group-mode-hook))
+
+(defun gnus-mouse-pick-group (e)
+ (interactive "e")
+ (mouse-set-point e)
+ (gnus-group-read-group nil))
+
+;; Look at LEVEL and find out what the level is really supposed to be.
+;; If LEVEL is non-nil, LEVEL will be returned, if not, what happens
+;; will depend on whether `gnus-group-use-permanent-levels' is used.
+(defun gnus-group-default-level (&optional level number-or-nil)
+ (cond
+ (gnus-group-use-permanent-levels
+ (setq gnus-group-default-list-level
+ (or level gnus-group-default-list-level))
+ (or gnus-group-default-list-level gnus-level-subscribed))
+ (number-or-nil
+ level)
+ (t
+ (or level gnus-group-default-list-level gnus-level-subscribed))))
+
+
+(defvar gnus-tmp-prev-perm nil)
+
+;;;###autoload
+(defun gnus-no-server (&optional arg)
+ "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 ((perm
+ (cons gnus-group-use-permanent-levels gnus-group-default-list-level)))
+ (setq gnus-tmp-prev-perm nil)
+ (setq gnus-group-use-permanent-levels t)
+ (gnus (or arg (1- gnus-level-default-subscribed)) t)
+ (setq gnus-tmp-prev-perm perm)))
+
+;;;###autoload
+(defun read-news (&optional arg dont-connect)
+ "Read network news. This is an alias for the `gnus' command."
+ (gnus arg dont-connect))
+
+;;;###autoload
+(defun gnus (&optional arg dont-connect)
+ "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 (get-buffer gnus-group-buffer)
+ (progn
+ (switch-to-buffer gnus-group-buffer)
+ (gnus-group-get-new-news))
+
+ (gnus-clear-system)
+
+ (nnheader-init-server-buffer)
+ ;; We do this if `gnus-no-server' has been run.
+ (if gnus-tmp-prev-perm
+ (setq gnus-group-use-permanent-levels (car gnus-tmp-prev-perm)
+ gnus-group-default-list-level (cdr gnus-tmp-prev-perm)
+ gnus-tmp-prev-perm nil))
+ (gnus-read-init-file)
+
+ (gnus-group-setup-buffer)
+ (let ((buffer-read-only nil))
+ (erase-buffer)
+ (if (not gnus-inhibit-startup-message)
+ (progn
+ (gnus-group-startup-message)
+ (sit-for 0))))
+
+ (let ((level (and arg (numberp arg) (> arg 0) arg))
+ did-connect)
+ (unwind-protect
+ (progn
+ (or 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.
+ (and gnus-use-dribble-file (gnus-dribble-read-file))
+
+ (gnus-summary-make-display-table)
+ (gnus-setup-news nil level)
+ (gnus-group-list-groups level)
+ (gnus-configure-windows 'group))))))
+
+(defun gnus-unload ()
+ "Unload all Gnus features."
+ (interactive)
+ (or (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" (car (car history)))
+ (setq feature (cdr (assq 'provide (car history))))
+ (unload-feature feature 'force))
+ (setq history (cdr history)))))
+
+(defun gnus-group-startup-message (&optional x y)
+ "Insert startup message in current buffer."
+ ;; Insert the message.
+ (erase-buffer)
+ (insert
+ (format "
+ _ ___ _ _
+ _ ___ __ ___ __ _ ___
+ __ _ ___ __ ___
+ _ ___ _
+ _ _ __ _
+ ___ __ _
+ __ _
+ _ _ _
+ _ _ _
+ _ _ _
+ __ ___
+ _ _ _ _
+ _ _
+ _ _
+ _ _
+ _
+ __
+
+
+ Gnus * A newsreader for Emacsen
+ A Praxis release * larsi@ifi.uio.no
+"
+ gnus-version))
+ ;; And then hack it.
+ ;; 18 is the longest line.
+ (indent-rigidly (point-min) (point-max)
+ (/ (max (- (window-width) (or x 46)) 0) 2))
+ (goto-char (point-min))
+ (let* ((pheight (count-lines (point-min) (point-max)))
+ (wheight (window-height))
+ (rest (- wheight pheight)))
+ (insert (make-string (max 0 (* 2 (/ rest 3))) ?\n)))
+
+
+
+ ;; Fontify some.
+ (goto-char (point-min))
+ (search-forward "Praxis")
+ (put-text-property (match-beginning 0) (match-end 0) 'face 'bold)
+ (goto-char (point-min)))
+
+(defun gnus-group-startup-message-old (&optional x y)
+ "Insert startup message in current buffer."
+ ;; Insert the message.
+ (erase-buffer)
+ (insert
+ (format "
+ %s
+ A newsreader
+ for GNU Emacs
+
+ Based on GNUS
+ written by
+ Masanobu UMEDA
+
+ A Praxis Release
+ larsi@ifi.uio.no
+"
+ gnus-version))
+ ;; And then hack it.
+ ;; 18 is the longest line.
+ (indent-rigidly (point-min) (point-max)
+ (/ (max (- (window-width) (or x 28)) 0) 2))
+ (goto-char (point-min))
+ ;; +4 is fuzzy factor.
+ (insert-char ?\n (/ (max (- (window-height) (or y 12)) 0) 2))
+
+ ;; Fontify some.
+ (goto-char (point-min))
+ (search-forward "Praxis")
+ (put-text-property (match-beginning 0) (match-end 0) 'face 'bold)
+ (goto-char (point-min)))
+
+(defun gnus-group-setup-buffer ()
+ (or (get-buffer gnus-group-buffer)
+ (progn
+ (switch-to-buffer gnus-group-buffer)
+ (gnus-add-current-to-buffer-list)
+ (gnus-group-mode)
+ (and gnus-carpal (gnus-carpal-setup-buffer 'group)))))
+
+(defun gnus-group-list-groups (&optional level unread)
+ "List newsgroups with level LEVEL or lower that have unread articles.
+Default is all subscribed groups.
+If argument UNREAD is non-nil, groups with no unread articles are also
+listed."
+ (interactive (list (if current-prefix-arg
+ (prefix-numeric-value current-prefix-arg)
+ (or
+ (gnus-group-default-level nil t)
+ gnus-group-default-list-level
+ gnus-level-subscribed))))
+ (or level
+ (setq level (car gnus-group-list-mode)
+ unread (cdr gnus-group-list-mode)))
+ (setq level (gnus-group-default-level level))
+ (gnus-group-setup-buffer) ;May call from out of group buffer
+ (let ((case-fold-search nil)
+ (group (gnus-group-group-name)))
+ (funcall gnus-group-prepare-function level unread nil)
+ (if (zerop (buffer-size))
+ (gnus-message 5 gnus-no-groups-message)
+ (goto-char (point-min))
+ (if (not group)
+ ;; Go to the first group with unread articles.
+ (gnus-group-search-forward nil nil nil t)
+ ;; Find the right group to put point on. If the current group
+ ;; has disappeared in the new listing, try to find the next
+ ;; one. If no next one can be found, just leave point at the
+ ;; first newsgroup in the buffer.
+ (if (not (gnus-goto-char
+ (text-property-any (point-min) (point-max)
+ 'gnus-group (intern group))))
+ (let ((newsrc (nthcdr 3 (gnus-gethash group gnus-newsrc-hashtb))))
+ (while (and newsrc
+ (not (gnus-goto-char
+ (text-property-any
+ (point-min) (point-max) 'gnus-group
+ (intern (car (car newsrc)))))))
+ (setq newsrc (cdr newsrc)))
+ (or newsrc (progn (goto-char (point-max))
+ (forward-line -1))))))
+ ;; Adjust cursor point.
+ (gnus-group-position-cursor))))
+
+(defun gnus-group-prepare-flat (level &optional all lowest regexp)
+ "List all newsgroups with unread articles of level LEVEL or lower.
+If ALL is non-nil, list groups that have no unread articles.
+If LOWEST is non-nil, list all newsgroups of level LOWEST or higher.
+If REGEXP, only list groups matching REGEXP."
+ (set-buffer gnus-group-buffer)
+ (let ((buffer-read-only nil)
+ (newsrc (cdr gnus-newsrc-alist))
+ (lowest (or lowest 1))
+ info clevel unread group)
+ (erase-buffer)
+ (if (< lowest gnus-level-zombie)
+ ;; List living groups.
+ (while newsrc
+ (setq info (car newsrc)
+ group (car info)
+ newsrc (cdr newsrc)
+ unread (car (gnus-gethash group gnus-newsrc-hashtb)))
+ (and unread ; This group might be bogus
+ (or (not regexp)
+ (string-match regexp group))
+ (<= (setq clevel (car (cdr info))) level)
+ (>= clevel lowest)
+ (or all ; We list all groups?
+ (eq unread t) ; We list unactivated groups
+ (> unread 0) ; We list groups with unread articles
+ (cdr (assq 'tick (nth 3 info)))) ; And ticked groups
+ (gnus-group-insert-group-line
+ nil group (car (cdr info)) (nth 3 info) unread (nth 4 info)))))
+
+ ;; List dead groups.
+ (and (>= level gnus-level-zombie) (<= lowest gnus-level-zombie)
+ (gnus-group-prepare-flat-list-dead
+ (setq gnus-zombie-list (sort gnus-zombie-list 'string<))
+ gnus-level-zombie ?Z
+ regexp))
+ (and (>= level gnus-level-killed) (<= lowest gnus-level-killed)
+ (gnus-group-prepare-flat-list-dead
+ (setq gnus-killed-list (sort gnus-killed-list 'string<))
+ gnus-level-killed ?K regexp))
+
+ (gnus-group-set-mode-line)
+ (setq gnus-group-list-mode (cons level all))
+ (run-hooks 'gnus-group-prepare-hook)))
+
+(defun gnus-group-prepare-flat-list-dead (groups level mark regexp)
+ ;; List zombies and killed lists somewhat faster, which was
+ ;; suggested by Jack Vinson <vinson@unagi.cis.upenn.edu>. It does
+ ;; this by ignoring the group format specification altogether.
+ (let (group beg)
+ (while groups
+ (setq group (car groups)
+ groups (cdr groups))
+ (if (or (not regexp)
+ (string-match regexp group))
+ (progn
+ (setq beg (point))
+ (insert (format " %c *: %s\n" mark group))
+ (add-text-properties
+ beg (1+ beg)
+ (list 'gnus-group (intern group)
+ 'gnus-unread t
+ 'gnus-level level)))))))
+
+(defun gnus-group-real-name (group)
+ "Find the real name of a foreign newsgroup."
+ (if (string-match ":[^:]+$" group)
+ (substring group (1+ (match-beginning 0)))
+ group))
+
+(defun gnus-group-prefixed-name (group method)
+ "Return the whole name from GROUP and METHOD."
+ (and (stringp method) (setq method (gnus-server-to-method method)))
+ (concat (format "%s" (car method))
+ (if (and
+ (assoc (format "%s" (car method)) (gnus-methods-using 'address))
+ (not (string= (nth 1 method) "")))
+ (concat "+" (nth 1 method)))
+ ":" group))
+
+(defun gnus-group-real-prefix (group)
+ "Return the prefix of the current group name."
+ (if (string-match "^[^:]+:" group)
+ (substring group 0 (match-end 0))
+ ""))
+
+(defun gnus-group-method-name (group)
+ "Return the method used for selecting GROUP."
+ (let ((prefix (gnus-group-real-prefix group)))
+ (if (equal prefix "")
+ gnus-select-method
+ (if (string-match "^[^\\+]+\\+" prefix)
+ (list (intern (substring prefix 0 (1- (match-end 0))))
+ (substring prefix (match-end 0) (1- (length prefix))))
+ (list (intern (substring prefix 0 (1- (length prefix)))) "")))))
+
+(defun gnus-group-foreign-p (group)
+ "Return nil if GROUP is native, non-nil if it is foreign."
+ (string-match ":" group))
+
+(defun gnus-group-set-info (info &optional method-only-group part)
+ (let* ((entry (gnus-gethash
+ (or method-only-group (car info)) gnus-newsrc-hashtb))
+ (part-info info)
+ (info (if method-only-group (nth 2 entry) info)))
+ (if (not method-only-group)
+ ()
+ (or entry
+ (error "Trying to change non-existent group %s" method-only-group))
+ ;; We have received parts of the actual group info - either the
+ ;; select method or the group parameters. We first check
+ ;; whether we have to extend the info, and if so, do that.
+ (let ((len (length info))
+ (total (if (eq part 'method) 5 6)))
+ (and (< len total)
+ (setcdr (nthcdr (1- len) info)
+ (make-list (- total len) nil)))
+ ;; Then we enter the new info.
+ (setcar (nthcdr (1- total) info) part-info)))
+ ;; We uncompress some lists of marked articles.
+ (let (marked)
+ (if (not (setq marked (nth 3 info)))
+ ()
+ (while marked
+ (or (eq 'score (car (car marked)))
+ (eq 'bookmark (car (car marked)))
+ (eq 'killed (car (car marked)))
+ (setcdr (car marked)
+ (gnus-uncompress-range (cdr (car marked)))))
+ (setq marked (cdr marked)))))
+ (if entry
+ ()
+ ;; This is a new group, so we just create it.
+ (save-excursion
+ (set-buffer gnus-group-buffer)
+ (if (nth 4 info)
+ ;; It's a foreign group...
+ (gnus-group-make-group
+ (gnus-group-real-name (car info))
+ (prin1-to-string (car (nth 4 info)))
+ (nth 1 (nth 4 info)))
+ ;; It's a native group.
+ (gnus-group-make-group (car info)))
+ (gnus-message 6 "Note: New group created")
+ (setq entry
+ (gnus-gethash (gnus-group-prefixed-name
+ (gnus-group-real-name (car info))
+ (or (nth 4 info) gnus-select-method))
+ gnus-newsrc-hashtb))))
+ ;; Whether it was a new group or not, we now have the entry, so we
+ ;; can do the update.
+ (if entry
+ (progn
+ (setcar (nthcdr 2 entry) info)
+ (if (and (not (eq (car entry) t))
+ (gnus-gethash (car info) gnus-active-hashtb))
+ (let ((marked (nth 3 info)))
+ (setcar entry
+ (max 0 (- (length (gnus-list-of-unread-articles
+ (car info)))
+ (length (cdr (assq 'tick marked)))
+ (length (cdr (assq 'dormant marked)))))))))
+ (error "No such group: %s" (car info)))))
+
+(defun gnus-group-set-method-info (group select-method)
+ (gnus-group-set-info select-method group 'method))
+
+(defun gnus-group-set-params-info (group params)
+ (gnus-group-set-info params group 'params))
+
+(defun gnus-group-update-group-line ()
+ "This function updates the current line in the newsgroup buffer and
+moves the point to the colon."
+ (let* ((buffer-read-only nil)
+ (group (gnus-group-group-name))
+ (entry (and group (gnus-gethash group gnus-newsrc-hashtb))))
+ (if (and entry (not (gnus-ephemeral-group-p group)))
+ (gnus-dribble-enter
+ (concat "(gnus-group-set-info '" (prin1-to-string (nth 2 entry))
+ ")")))
+ (beginning-of-line)
+ (delete-region (point) (progn (forward-line 1) (point)))
+ (gnus-group-insert-group-line-info group)
+ (forward-line -1)
+ (gnus-group-position-cursor)))
+
+(defun gnus-group-insert-group-line-info (group)
+ (let ((entry (gnus-gethash group gnus-newsrc-hashtb))
+ active info)
+ (if entry
+ (progn
+ (setq info (nth 2 entry))
+ (gnus-group-insert-group-line
+ nil group (nth 1 info) (nth 3 info) (car entry) (nth 4 info)))
+ (setq active (gnus-gethash group gnus-active-hashtb))
+ (gnus-group-insert-group-line
+ nil group
+ (if (member group gnus-zombie-list) gnus-level-zombie gnus-level-killed)
+ nil (if active (- (1+ (cdr active)) (car active)) 0) nil))))
+
+(defun gnus-group-insert-group-line (gformat group level marked number method)
+ (let* ((gformat (or gformat gnus-group-line-format-spec))
+ (active (gnus-gethash group gnus-active-hashtb))
+ (number-total (if active (1+ (- (cdr active) (car active))) 0))
+ (number-of-dormant (length (cdr (assq 'dormant marked))))
+ (number-of-ticked (length (cdr (assq 'tick marked))))
+ (number-of-ticked-and-dormant
+ (+ number-of-ticked number-of-dormant))
+ (number-of-unread-unticked
+ (if (numberp number) (int-to-string (max 0 number))
+ "*"))
+ (number-of-read
+ (if (numberp number)
+ (max 0 (- number-total number))
+ "*"))
+ (subscribed (cond ((<= level gnus-level-subscribed) ? )
+ ((<= level gnus-level-unsubscribed) ?U)
+ ((= level gnus-level-zombie) ?Z)
+ (t ?K)))
+ (qualified-group (gnus-group-real-name group))
+ (newsgroup-description
+ (if gnus-description-hashtb
+ (or (gnus-gethash group gnus-description-hashtb) "")
+ ""))
+ (moderated (if (member group gnus-moderated-list) ?m ? ))
+ (moderated-string (if (eq moderated ?m) "(m)" ""))
+ (method (gnus-server-get-method group method))
+ (news-server (or (car (cdr method)) ""))
+ (news-method (or (car method) ""))
+ (news-method-string
+ (if method (format "(%s:%s)" (car method) (car (cdr method))) ""))
+ (marked (if (and
+ (numberp number)
+ (zerop number)
+ (> number-of-ticked 0))
+ ?* ? ))
+ (number (if (eq number t) "*" (+ number number-of-dormant
+ number-of-ticked)))
+ (process-marked (if (member group gnus-group-marked)
+ gnus-process-mark ? ))
+ (buffer-read-only nil)
+ header ; passed as parameter to user-funcs.
+ b)
+ (beginning-of-line)
+ (setq b (point))
+ ;; Insert the text.
+ (insert (eval gformat))
+
+ (add-text-properties
+ b (1+ b) (list 'gnus-group (intern group)
+ 'gnus-unread (if (numberp number)
+ (string-to-int number-of-unread-unticked)
+ t)
+ 'gnus-marked marked
+ 'gnus-level level))))
+
+(defun gnus-group-update-group (group &optional visible-only)
+ "Update newsgroup info of GROUP.
+If VISIBLE-ONLY is non-nil, the group won't be displayed if it isn't already."
+ (save-excursion
+ (set-buffer gnus-group-buffer)
+ (let ((buffer-read-only nil)
+ visible)
+ (let ((entry (gnus-gethash group gnus-newsrc-hashtb)))
+ (if (and entry
+ (not (gnus-ephemeral-group-p group)))
+ (gnus-dribble-enter
+ (concat "(gnus-group-set-info '" (prin1-to-string (nth 2 entry))
+ ")"))))
+ ;; Buffer may be narrowed.
+ (save-restriction
+ (widen)
+ ;; Search a line to modify. If the buffer is large, the search
+ ;; takes long time. In most cases, current point is on the line
+ ;; we are looking for. So, first of all, check current line.
+ (if (or (progn
+ (beginning-of-line)
+ (eq (get-text-property (point) 'gnus-group)
+ (intern group)))
+ (progn
+ (gnus-goto-char
+ (text-property-any
+ (point-min) (point-max) 'gnus-group (intern group)))))
+ ;; GROUP is listed in current buffer. So, delete old line.
+ (progn
+ (setq visible t)
+ (beginning-of-line)
+ (delete-region (point) (progn (forward-line 1) (point))))
+ ;; No such line in the buffer, find out where it's supposed to
+ ;; go, and insert it there (or at the end of the buffer).
+ ;; Fix by Per Abrahamsen <amanda@iesd.auc.dk>.
+ (or visible-only
+ (let ((entry
+ (cdr (cdr (gnus-gethash group gnus-newsrc-hashtb)))))
+ (while (and entry
+ (car entry)
+ (not
+ (gnus-goto-char
+ (text-property-any
+ (point-min) (point-max)
+ 'gnus-group (intern (car (car entry)))))))
+ (setq entry (cdr entry)))
+ (or entry (goto-char (point-max)))))))
+ (if (or visible (not visible-only))
+ (gnus-group-insert-group-line-info group))
+ (gnus-group-set-mode-line))))
+
+(defun gnus-group-set-mode-line ()
+ (if (memq 'group gnus-updated-mode-lines)
+ (let* ((gformat (or gnus-group-mode-line-format-spec
+ (setq gnus-group-mode-line-format-spec
+ (gnus-parse-format
+ gnus-group-mode-line-format
+ gnus-group-mode-line-format-alist))))
+ (news-server (car (cdr gnus-select-method)))
+ (news-method (car gnus-select-method))
+ (max-len 60)
+ header ;Dummy binding for user-defined specs.
+ (mode-string (eval gformat)))
+ (setq mode-string (eval gformat))
+ (if (> (length mode-string) max-len)
+ (setq mode-string (substring mode-string 0 (- max-len 4))))
+ (setq mode-line-buffer-identification mode-string)
+ (set-buffer-modified-p t))))
+
+(defun gnus-group-group-name ()
+ "Get the name of the newsgroup on the current line."
+ (let ((group (get-text-property (gnus-point-at-bol) 'gnus-group)))
+ (and group (symbol-name group))))
+
+(defun gnus-group-group-level ()
+ "Get the level of the newsgroup on the current line."
+ (get-text-property (gnus-point-at-bol) 'gnus-level))
+
+(defun gnus-group-group-unread ()
+ "Get the number of unread articles of the newsgroup on the current line."
+ (get-text-property (gnus-point-at-bol) 'gnus-unread))
+
+(defun gnus-group-search-forward (&optional backward all level first-too)
+ "Find the next newsgroup with unread articles.
+If BACKWARD is non-nil, find the previous newsgroup instead.
+If ALL is non-nil, just find any newsgroup.
+If LEVEL is non-nil, find group with level LEVEL, or higher if no such
+group exists.
+If FIRST-TOO, the current line is also eligible as a target."
+ (let ((way (if backward -1 1))
+ (low gnus-level-killed)
+ (beg (point))
+ pos found lev)
+ (if (and backward (progn (beginning-of-line)) (bobp))
+ nil
+ (or first-too (forward-line way))
+ (while (and
+ (not (eobp))
+ (not (setq
+ found
+ (and (or all
+ (and
+ (let ((unread
+ (get-text-property (point) 'gnus-unread)))
+ (or (eq unread t) (and unread (> unread 0))))
+ (setq lev (get-text-property (point)
+ 'gnus-level))
+ (<= lev gnus-level-subscribed)))
+ (or (not level)
+ (and (setq lev (get-text-property (point)
+ 'gnus-level))
+ (or (= lev level)
+ (and (< lev low)
+ (< level lev)
+ (progn
+ (setq low lev)
+ (setq pos (point))
+ nil))))))))
+ (zerop (forward-line way)))))
+ (if found
+ (progn (gnus-group-position-cursor) t)
+ (goto-char (or pos beg))
+ (and pos t))))
+
+;;; Gnus group mode commands
+
+;; Group marking.
+
+(defun gnus-group-mark-group (n &optional unmark no-advance)
+ "Mark the current group."
+ (interactive "p")
+ (let ((buffer-read-only nil)
+ group)
+ (while
+ (and (> n 0)
+ (setq group (gnus-group-group-name))
+ (progn
+ (beginning-of-line)
+ (forward-char
+ (or (cdr (assq 'process gnus-group-mark-positions)) 2))
+ (delete-char 1)
+ (if unmark
+ (progn
+ (insert " ")
+ (setq gnus-group-marked (delete group gnus-group-marked)))
+ (insert "#")
+ (setq gnus-group-marked
+ (cons group (delete group gnus-group-marked))))
+ t)
+ (or no-advance (zerop (gnus-group-next-group 1))))
+ (setq n (1- n)))
+ (gnus-summary-position-cursor)
+ n))
+
+(defun gnus-group-unmark-group (n)
+ "Remove the mark from the current group."
+ (interactive "p")
+ (gnus-group-mark-group n 'unmark))
+
+(defun gnus-group-mark-region (unmark beg end)
+ "Mark all groups between point and mark.
+If UNMARK, remove the mark instead."
+ (interactive "P\nr")
+ (let ((num (count-lines beg end)))
+ (save-excursion
+ (goto-char beg)
+ (- num (gnus-group-mark-group num unmark)))))
+
+(defun gnus-group-remove-mark (group)
+ (and (gnus-group-goto-group group)
+ (save-excursion
+ (gnus-group-mark-group 1 'unmark t))))
+
+;; Return a list of groups to work on. Take into consideration N (the
+;; prefix) and the list of marked groups.
+(defun gnus-group-process-prefix (n)
+ (cond (n
+ (setq n (prefix-numeric-value n))
+ ;; There is a prefix, so we return a list of the N next
+ ;; groups.
+ (let ((way (if (< n 0) -1 1))
+ (n (abs n))
+ group groups)
+ (save-excursion
+ (while (and (> n 0)
+ (setq group (gnus-group-group-name)))
+ (setq groups (cons group groups))
+ (setq n (1- n))
+ (forward-line way)))
+ (nreverse groups)))
+ (gnus-group-marked
+ ;; No prefix, but a list of marked articles.
+ (reverse gnus-group-marked))
+ (t
+ ;; Neither marked articles or a prefix, so we return the
+ ;; current group.
+ (let ((group (gnus-group-group-name)))
+ (and group (list group))))))
+
+;; Selecting groups.
+
+(defun gnus-group-read-group (&optional all no-article group)
+ "Read news in this newsgroup.
+If the prefix argument ALL is non-nil, already read articles become
+readable. If the optional argument NO-ARTICLE is non-nil, no article
+will be auto-selected upon group entry."
+ (interactive "P")
+ (let ((group (or group (gnus-group-group-name)))
+ number active marked entry)
+ (or group (error "No group on current line"))
+ (setq marked
+ (nth 3 (nth 2 (setq entry (gnus-gethash group gnus-newsrc-hashtb)))))
+ ;; This group might be a dead group. In that case we have to get
+ ;; the number of unread articles from `gnus-active-hashtb'.
+ (if entry
+ (setq number (car entry))
+ (if (setq active (gnus-gethash group gnus-active-hashtb))
+ (setq number (- (1+ (cdr active)) (car active)))))
+ (gnus-summary-read-group
+ group (or all (and (numberp number)
+ (zerop (+ number (length (cdr (assq 'tick marked)))
+ (length (cdr (assq 'dormant marked)))))))
+ no-article)))
+
+(defun gnus-group-select-group (&optional all)
+ "Select this newsgroup.
+No article is selected automatically.
+If argument ALL is non-nil, already read articles become readable."
+ (interactive "P")
+ (gnus-group-read-group all t))
+
+(defun gnus-group-select-group-all ()
+ "Select the current group and display all articles in it."
+ (interactive)
+ (gnus-group-select-group 'all))
+
+;; Enter a group that is not in the group buffer. Non-nil is returned
+;; if selection was successful.
+(defun gnus-group-read-ephemeral-group
+ (group method &optional activate quit-config)
+ (let ((group (if (gnus-group-foreign-p group) group
+ (gnus-group-prefixed-name group method))))
+ (gnus-sethash
+ group
+ (list t nil (list group gnus-level-default-subscribed nil nil
+ (append method
+ (list
+ (list 'quit-config
+ (if quit-config quit-config
+ (cons (current-buffer) 'summary)))))))
+ gnus-newsrc-hashtb)
+ (set-buffer gnus-group-buffer)
+ (or (gnus-check-server method)
+ (error "Unable to contact server: %s" (gnus-status-message method)))
+ (if activate (or (gnus-request-group group)
+ (error "Couldn't request group")))
+ (condition-case ()
+ (gnus-group-read-group t t group)
+ (error nil)
+ (quit nil))
+ (not (equal major-mode 'gnus-group-mode))))
+
+(defun gnus-group-jump-to-group (group)
+ "Jump to newsgroup GROUP."
+ (interactive
+ (list (completing-read
+ "Group: " gnus-active-hashtb nil
+ (memq gnus-select-method gnus-have-read-active-file))))
+
+ (if (equal group "")
+ (error "Empty group name"))
+
+ (let ((b (text-property-any
+ (point-min) (point-max) 'gnus-group (intern group))))
+ (if b
+ ;; Either go to the line in the group buffer...
+ (goto-char b)
+ ;; ... or insert the line.
+ (or
+ (gnus-gethash group gnus-active-hashtb)
+ (gnus-activate-group group)
+ (error "%s error: %s" group (gnus-status-message group)))
+
+ (gnus-group-update-group group)
+ (goto-char (text-property-any
+ (point-min) (point-max) 'gnus-group (intern group)))))
+ ;; Adjust cursor point.
+ (gnus-group-position-cursor))
+
+(defun gnus-group-goto-group (group)
+ "Goto to newsgroup GROUP."
+ (let ((b (text-property-any (point-min) (point-max)
+ 'gnus-group (intern group))))
+ (and b (goto-char b))))
+
+(defun gnus-group-next-group (n)
+ "Go to next N'th newsgroup.
+If N is negative, search backward instead.
+Returns the difference between N and the number of skips actually
+done."
+ (interactive "p")
+ (gnus-group-next-unread-group n t))
+
+(defun gnus-group-next-unread-group (n &optional all level)
+ "Go to next N'th unread newsgroup.
+If N is negative, search backward instead.
+If ALL is non-nil, choose any newsgroup, unread or not.
+If LEVEL is non-nil, choose the next group with level LEVEL, or, if no
+such group can be found, the next group with a level higher than
+LEVEL.
+Returns the difference between N and the number of skips actually
+made."
+ (interactive "p")
+ (let ((backward (< n 0))
+ (n (abs n)))
+ (while (and (> n 0)
+ (gnus-group-search-forward
+ backward (or (not gnus-group-goto-unread) all) level))
+ (setq n (1- n)))
+ (if (/= 0 n) (gnus-message 7 "No more%s newsgroups%s" (if all "" " unread")
+ (if level " on this level or higher" "")))
+ n))
+
+(defun gnus-group-prev-group (n)
+ "Go to previous N'th newsgroup.
+Returns the difference between N and the number of skips actually
+done."
+ (interactive "p")
+ (gnus-group-next-unread-group (- n) t))
+
+(defun gnus-group-prev-unread-group (n)
+ "Go to previous N'th unread newsgroup.
+Returns the difference between N and the number of skips actually
+done."
+ (interactive "p")
+ (gnus-group-next-unread-group (- n)))
+
+(defun gnus-group-next-unread-group-same-level (n)
+ "Go to next N'th unread newsgroup on the same level.
+If N is negative, search backward instead.
+Returns the difference between N and the number of skips actually
+done."
+ (interactive "p")
+ (gnus-group-next-unread-group n t (gnus-group-group-level))
+ (gnus-group-position-cursor))
+
+(defun gnus-group-prev-unread-group-same-level (n)
+ "Go to next N'th unread newsgroup on the same level.
+Returns the difference between N and the number of skips actually
+done."
+ (interactive "p")
+ (gnus-group-next-unread-group (- n) t (gnus-group-group-level))
+ (gnus-group-position-cursor))
+
+(defun gnus-group-best-unread-group (&optional exclude-group)
+ "Go to the group with the highest level.
+If EXCLUDE-GROUP, do not go to that group."
+ (interactive)
+ (goto-char (point-min))
+ (let ((best 100000)
+ unread best-point)
+ (while (setq unread (get-text-property (point) 'gnus-unread))
+ (if (and (numberp unread) (> unread 0))
+ (progn
+ (if (and (< (get-text-property (point) 'gnus-level) best)
+ (or (not exclude-group)
+ (not (equal exclude-group (gnus-group-group-name)))))
+ (progn
+ (setq best (get-text-property (point) 'gnus-level))
+ (setq best-point (point))))))
+ (forward-line 1))
+ (if best-point (goto-char best-point))
+ (gnus-summary-position-cursor)
+ (and best-point (gnus-group-group-name))))
+
+(defun gnus-group-first-unread-group ()
+ "Go to the first group with unread articles."
+ (interactive)
+ (prog1
+ (let ((opoint (point))
+ unread)
+ (goto-char (point-min))
+ (if (or (eq (setq unread (gnus-group-group-unread)) t) ; Not active.
+ (not (zerop unread)) ; Has unread articles.
+ (zerop (gnus-group-next-unread-group 1))) ; Next unread group.
+ (point) ; Success.
+ (goto-char opoint)
+ nil)) ; Not success.
+ (gnus-group-position-cursor)))
+
+(defun gnus-group-enter-server-mode ()
+ "Jump to the server buffer."
+ (interactive)
+ (gnus-server-setup-buffer)
+ (gnus-configure-windows 'server)
+ (gnus-server-prepare))
+
+(defun gnus-group-make-group (name &optional method address)
+ "Add a new newsgroup.
+The user will be prompted for a NAME, for a select METHOD, and an
+ADDRESS."
+ (interactive
+ (cons
+ (read-string "Group name: ")
+ (let ((method
+ (completing-read
+ "Method: " (append gnus-valid-select-methods gnus-server-alist)
+ nil t)))
+ (if (assoc method gnus-valid-select-methods)
+ (list method
+ (if (memq 'prompt-address
+ (assoc method gnus-valid-select-methods))
+ (read-string "Address: ")
+ ""))
+ (list method nil)))))
+
+ (let* ((meth (and method (if address (list (intern method) address) method)))
+ (nname (if method (gnus-group-prefixed-name name meth) name))
+ info)
+ (and (gnus-gethash nname gnus-newsrc-hashtb)
+ (error "Group %s already exists" nname))
+ (gnus-group-change-level
+ (setq info (list t nname gnus-level-default-subscribed nil nil meth))
+ gnus-level-default-subscribed gnus-level-killed
+ (and (gnus-group-group-name)
+ (gnus-gethash (gnus-group-group-name)
+ gnus-newsrc-hashtb))
+ t)
+ (gnus-sethash nname (cons 1 0) gnus-active-hashtb)
+ (or (gnus-ephemeral-group-p name)
+ (gnus-dribble-enter
+ (concat "(gnus-group-set-info '" (prin1-to-string (cdr info)) ")")))
+ (gnus-group-insert-group-line-info nname)
+
+ (if (assoc method gnus-valid-select-methods)
+ (require (intern method)))
+ (and (gnus-check-backend-function 'request-create-group nname)
+ (gnus-request-create-group nname))))
+
+(defun gnus-group-edit-group (group &optional part)
+ "Edit the group on the current line."
+ (interactive (list (gnus-group-group-name)))
+ (let ((done-func '(lambda ()
+ "Exit editing mode and update the information."
+ (interactive)
+ (gnus-group-edit-group-done 'part 'group)))
+ (part (or part 'info))
+ (winconf (current-window-configuration))
+ info)
+ (or group (error "No group on current line"))
+ (or (setq info (nth 2 (gnus-gethash group gnus-newsrc-hashtb)))
+ (error "Killed group; can't be edited"))
+ (set-buffer (get-buffer-create gnus-group-edit-buffer))
+ (gnus-configure-windows 'edit-group)
+ (gnus-add-current-to-buffer-list)
+ (emacs-lisp-mode)
+ ;; Suggested by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
+ (use-local-map (copy-keymap emacs-lisp-mode-map))
+ (local-set-key "\C-c\C-c" done-func)
+ (make-local-variable 'gnus-prev-winconf)
+ (setq gnus-prev-winconf winconf)
+ ;; We modify the func to let it know what part it is editing.
+ (setcar (cdr (nth 4 done-func)) (list 'quote part))
+ (setcar (cdr (cdr (nth 4 done-func))) group)
+ (erase-buffer)
+ (insert
+ (cond
+ ((eq part 'method)
+ ";; Type `C-c C-c' after editing the select method.\n\n")
+ ((eq part 'params)
+ ";; Type `C-c C-c' after editing the group parameters.\n\n")
+ ((eq part 'info)
+ ";; Type `C-c C-c' after editing the group info.\n\n")))
+ (let ((cinfo (gnus-copy-sequence info))
+ marked)
+ (if (not (setq marked (nth 3 cinfo)))
+ ()
+ (while marked
+ (or (eq 'score (car (car marked)))
+ (eq 'bookmark (car (car marked)))
+ (eq 'killed (car (car marked)))
+ (not (numberp (car (cdr (car marked)))))
+ (setcdr (car marked)
+ (gnus-compress-sequence (sort (cdr (car marked)) '<) t)))
+ (setq marked (cdr marked))))
+ (insert
+ (pp-to-string
+ (cond ((eq part 'method)
+ (or (nth 4 info) "native"))
+ ((eq part 'params)
+ (nth 5 info))
+ (t
+ cinfo)))
+ "\n"))))
+
+(defun gnus-group-edit-group-method (group)
+ "Edit the select method of GROUP."
+ (interactive (list (gnus-group-group-name)))
+ (gnus-group-edit-group group 'method))
+
+(defun gnus-group-edit-group-parameters (group)
+ "Edit the group parameters of GROUP."
+ (interactive (list (gnus-group-group-name)))
+ (gnus-group-edit-group group 'params))
+
+(defun gnus-group-edit-group-done (part group)
+ "Get info from buffer, update variables and jump to the group buffer."
+ (set-buffer (get-buffer-create gnus-group-edit-buffer))
+ (goto-char (point-min))
+ (let ((form (read (current-buffer)))
+ (winconf gnus-prev-winconf))
+ (if (eq part 'info)
+ (gnus-group-set-info form)
+ (gnus-group-set-info form group part))
+ (kill-buffer (current-buffer))
+ (and winconf (set-window-configuration winconf))
+ (set-buffer gnus-group-buffer)
+ (gnus-group-update-group (gnus-group-group-name))
+ (gnus-group-position-cursor)))
+
+(defun gnus-group-make-help-group ()
+ "Create the Gnus documentation group."
+ (interactive)
+ (let ((path (if installation-directory
+ (cons (concat installation-directory "etc/") load-path)
+ (cons data-directory load-path)))
+ (name (gnus-group-prefixed-name "gnus-help" '(nndoc "gnus-help")))
+ file)
+ (and (gnus-gethash name gnus-newsrc-hashtb)
+ (error "Documentation group already exists"))
+ (while (and path
+ (not (file-exists-p
+ (setq file (concat (file-name-as-directory (car path))
+ "gnus-tut.txt")))))
+ (setq path (cdr path)))
+ (if (not path)
+ (message "Couldn't find doc group")
+ (gnus-group-make-group
+ (gnus-group-real-name name)
+ (list 'nndoc name
+ (list 'nndoc-address file)
+ (list 'nndoc-article-type 'mbox)))))
+ (gnus-group-position-cursor))
+
+(defun gnus-group-make-doc-group (file type)
+ "Create a group that uses a single file as the source."
+ (interactive
+ (list (read-file-name "File name: ")
+ (let ((err "")
+ found char)
+ (while (not found)
+ (message "%sFile type (mbox, babyl, digest) [mbd]: " err)
+ (setq found (cond ((= (setq char (read-char)) ?m) 'mbox)
+ ((= char ?b) 'babyl)
+ ((= char ?d) 'digest)
+ (t (setq err (format "%c unknown. " char))
+ nil))))
+ found)))
+ (let* ((file (expand-file-name file))
+ (name (gnus-generate-new-group-name
+ (gnus-group-prefixed-name
+ (file-name-nondirectory file) '(nndoc "")))))
+ (gnus-group-make-group
+ (gnus-group-real-name name)
+ (list 'nndoc name
+ (list 'nndoc-address file)
+ (list 'nndoc-article-type type)))))
+
+(defun gnus-group-make-archive-group (&optional all)
+ "Create the (ding) Gnus archive group of the most recent articles.
+Given a prefix, create a full group."
+ (interactive "P")
+ (let ((group (gnus-group-prefixed-name
+ (if all "ding.archives" "ding.recent") '(nndir ""))))
+ (and (gnus-gethash group gnus-newsrc-hashtb)
+ (error "Archive group already exists"))
+ (gnus-group-make-group
+ (gnus-group-real-name group)
+ "nndir"
+ (if all gnus-group-archive-directory
+ gnus-group-recent-archive-directory)))
+ (gnus-group-position-cursor))
+
+(defun gnus-group-make-directory-group (dir)
+ "Create an nndir group.
+The user will be prompted for a directory. The contents of this
+directory will be used as a newsgroup. The directory should contain
+mail messages or news articles in files that have numeric names."
+ (interactive
+ (list (read-file-name "Create group from directory: ")))
+ (or (file-exists-p dir) (error "No such directory"))
+ (or (file-directory-p dir) (error "Not a directory"))
+ (gnus-group-make-group dir "nndir" dir)
+ (gnus-group-position-cursor))
+
+(defun gnus-group-make-kiboze-group (group address scores)
+ "Create an nnkiboze group.
+The user will be prompted for a name, a regexp to match groups, and
+score file entries for articles to include in the group."
+ (interactive
+ (list
+ (read-string "nnkiboze group name: ")
+ (read-string "Source groups (regexp): ")
+ (let ((headers (mapcar (lambda (group) (list group))
+ '("subject" "from" "number" "date" "message-id"
+ "references" "chars" "lines" "xref")))
+ scores header regexp regexps)
+ (while (not (equal "" (setq header (completing-read
+ "Match on header: " headers nil t))))
+ (setq regexps nil)
+ (while (not (equal "" (setq regexp (read-string
+ (format "Match on %s (string): "
+ header)))))
+ (setq regexps (cons (list regexp nil nil 'r) regexps)))
+ (setq scores (cons (cons header regexps) scores)))
+ scores)))
+ (gnus-group-make-group group "nnkiboze" address)
+ (save-excursion
+ (gnus-set-work-buffer)
+ (let (emacs-lisp-mode-hook)
+ (pp scores (current-buffer)))
+ (write-region (point-min) (point-max)
+ (concat (or gnus-kill-files-directory "~/News")
+ "nnkiboze:" group "." gnus-score-file-suffix)))
+ (gnus-group-position-cursor))
+
+(defun gnus-group-add-to-virtual (n vgroup)
+ "Add the current group to a virtual group."
+ (interactive
+ (list current-prefix-arg
+ (completing-read "Add to virtual group: " gnus-newsrc-hashtb nil t
+ "nnvirtual:")))
+ (or (eq (car (gnus-find-method-for-group vgroup)) 'nnvirtual)
+ (error "%s is not an nnvirtual group" vgroup))
+ (let* ((groups (gnus-group-process-prefix n))
+ (method (nth 4 (nth 2 (gnus-gethash vgroup gnus-newsrc-hashtb)))))
+ (setcar (cdr method)
+ (concat
+ (nth 1 method) "\\|"
+ (mapconcat
+ (lambda (s)
+ (gnus-group-remove-mark s)
+ (concat "\\(^" (regexp-quote s) "$\\)"))
+ groups "\\|"))))
+ (gnus-group-position-cursor))
+
+(defun gnus-group-make-empty-virtual (group)
+ "Create a new, fresh, empty virtual group."
+ (interactive "sCreate new, empty virtual group: ")
+ (let* ((method (list 'nnvirtual "^$"))
+ (pgroup (gnus-group-prefixed-name group method)))
+ ;; Check whether it exists already.
+ (and (gnus-gethash pgroup gnus-newsrc-hashtb)
+ (error "Group %s already exists." pgroup))
+ ;; Subscribe the new group after the group on the current line.
+ (gnus-subscribe-group pgroup (gnus-group-group-name) method)
+ (gnus-group-update-group pgroup)
+ (forward-line -1)
+ (gnus-group-position-cursor)))
+
+(defun gnus-group-enter-directory (dir)
+ "Enter an ephemeral nneething group."
+ (interactive "DDirectory to read: ")
+ (let* ((method (list 'nneething dir))
+ (leaf (gnus-group-prefixed-name
+ (file-name-nondirectory (directory-file-name dir))
+ method))
+ (name (gnus-generate-new-group-name leaf)))
+ (let ((nneething-read-only t))
+ (or (gnus-group-read-ephemeral-group
+ name method t
+ (cons (current-buffer) (if (eq major-mode 'gnus-summary-mode)
+ 'summary 'group)))
+ (error "Couldn't enter %s" dir)))))
+
+;; Group sorting commands
+;; Suggested by Joe Hildebrand <hildjj@idaho.fuentez.com>.
+
+(defun gnus-group-sort-groups ()
+ "Sort the group buffer using `gnus-group-sort-function'."
+ (interactive)
+ (setq gnus-newsrc-alist
+ (sort (cdr gnus-newsrc-alist) gnus-group-sort-function))
+ (gnus-make-hashtable-from-newsrc-alist)
+ (gnus-group-list-groups))
+
+(defun gnus-group-sort-by-alphabet (info1 info2)
+ (string< (car info1) (car info2)))
+
+(defun gnus-group-sort-by-unread (info1 info2)
+ (let ((n1 (car (gnus-gethash (car info1) gnus-newsrc-hashtb)))
+ (n2 (car (gnus-gethash (car info2) gnus-newsrc-hashtb))))
+ (< (or (and (numberp n1) n1) 0)
+ (or (and (numberp n2) n2) 0))))
+
+(defun gnus-group-sort-by-level (info1 info2)
+ (< (nth 1 info1) (nth 1 info2)))
+
+;; Group catching up.
+
+(defun gnus-group-catchup-current (&optional n all)
+ "Mark all articles not marked as unread in current newsgroup as read.
+If prefix argument N is numeric, the ARG next newsgroups will be
+caught up. If ALL is non-nil, marked articles will also be marked as
+read. Cross references (Xref: header) of articles are ignored.
+The difference between N and actual number of newsgroups that were
+caught up is returned."
+ (interactive "P")
+ (if (not (or (not gnus-interactive-catchup) ;Without confirmation?
+ gnus-expert-user
+ (gnus-y-or-n-p
+ (if all
+ "Do you really want to mark all articles as read? "
+ "Mark all unread articles as read? "))))
+ n
+ (let ((groups (gnus-group-process-prefix n))
+ (ret 0))
+ (while groups
+ ;; Virtual groups have to be given special treatment.
+ (let ((method (gnus-find-method-for-group (car groups))))
+ (if (eq 'nnvirtual (car method))
+ (nnvirtual-catchup-group
+ (gnus-group-real-name (car groups)) (nth 1 method) all)))
+ (gnus-group-remove-mark (car groups))
+ (if (prog1
+ (gnus-group-goto-group (car groups))
+ (gnus-group-catchup (car groups) all))
+ (gnus-group-update-group-line)
+ (setq ret (1+ ret)))
+ (setq groups (cdr groups)))
+ (gnus-group-next-unread-group 1)
+ ret)))
+
+(defun gnus-group-catchup-current-all (&optional n)
+ "Mark all articles in current newsgroup as read.
+Cross references (Xref: header) of articles are ignored."
+ (interactive "P")
+ (gnus-group-catchup-current n 'all))
+
+(defun gnus-group-catchup (group &optional all)
+ "Mark all articles in GROUP as read.
+If ALL is non-nil, all articles are marked as read.
+The return value is the number of articles that were marked as read,
+or nil if no action could be taken."
+ (let* ((entry (gnus-gethash group gnus-newsrc-hashtb))
+ (num (car entry))
+ (marked (nth 3 (nth 2 entry))))
+ (if (not (numberp (car entry)))
+ (gnus-message 1 "Can't catch up; non-active group")
+ ;; Do the updating only if the newsgroup isn't killed.
+ (if (not entry)
+ ()
+ (gnus-update-read-articles
+ group (and (not all) (append (cdr (assq 'tick marked))
+ (cdr (assq 'dormant marked))))
+ nil (and (not all) (cdr (assq 'tick marked))))
+ (and all
+ (setq marked (nth 3 (nth 2 entry)))
+ (setcar (nthcdr 3 (nth 2 entry))
+ (delq (assq 'dormant marked)
+ (nth 3 (nth 2 entry)))))))
+ num))
+
+(defun gnus-group-expire-articles (&optional n)
+ "Expire all expirable articles in the current newsgroup."
+ (interactive "P")
+ (let ((groups (gnus-group-process-prefix n))
+ group)
+ (or groups (error "No groups to expire"))
+ (while groups
+ (setq group (car groups)
+ groups (cdr groups))
+ (gnus-group-remove-mark group)
+ (if (not (gnus-check-backend-function 'request-expire-articles group))
+ ()
+ (let* ((info (nth 2 (gnus-gethash group gnus-newsrc-hashtb)))
+ (expirable (if (memq 'total-expire (nth 5 info))
+ (cons nil (gnus-list-of-read-articles group))
+ (assq 'expire (nth 3 info)))))
+ (and expirable
+ (setcdr expirable
+ (gnus-request-expire-articles
+ (cdr expirable) group))))))))
+
+(defun gnus-group-expire-all-groups ()
+ "Expire all expirable articles in all newsgroups."
+ (interactive)
+ (save-excursion
+ (gnus-message 5 "Expiring...")
+ (let ((gnus-group-marked (mapcar (lambda (info) (car info))
+ (cdr gnus-newsrc-alist))))
+ (gnus-group-expire-articles nil)))
+ (gnus-group-position-cursor)
+ (gnus-message 5 "Expiring...done"))
+
+(defun gnus-group-set-current-level (n level)
+ "Set the level of the next N groups to LEVEL."
+ (interactive "P\nnLevel: ")
+ (or (and (>= level 1) (<= level gnus-level-killed))
+ (error "Illegal level: %d" level))
+ (let ((groups (gnus-group-process-prefix n))
+ group)
+ (while groups
+ (setq group (car groups)
+ groups (cdr groups))
+ (gnus-group-remove-mark group)
+ (gnus-message 6 "Changed level of %s from %d to %d"
+ group (gnus-group-group-level) level)
+ (gnus-group-change-level group level
+ (gnus-group-group-level))
+ (gnus-group-update-group-line)))
+ (gnus-group-position-cursor))
+
+(defun gnus-group-unsubscribe-current-group (&optional n)
+ "Toggle subscription of the current group.
+If given numerical prefix, toggle the N next groups."
+ (interactive "P")
+ (let ((groups (gnus-group-process-prefix n))
+ group)
+ (while groups
+ (setq group (car groups)
+ groups (cdr groups))
+ (gnus-group-remove-mark group)
+ (gnus-group-unsubscribe-group
+ group (if (<= (gnus-group-group-level) gnus-level-subscribed)
+ gnus-level-default-unsubscribed
+ gnus-level-default-subscribed))
+ (gnus-group-update-group-line))
+ (gnus-group-next-group 1)))
+
+(defun gnus-group-unsubscribe-group (group &optional level)
+ "Toggle subscribe from/to unsubscribe GROUP.
+New newsgroup is added to .newsrc automatically."
+ (interactive
+ (list (completing-read
+ "Group: " gnus-active-hashtb nil
+ (memq gnus-select-method gnus-have-read-active-file))))
+ (let ((newsrc (gnus-gethash group gnus-newsrc-hashtb)))
+ (cond
+ ((string-match "^[ \t]$" group)
+ (error "Empty group name"))
+ (newsrc
+ ;; Toggle subscription flag.
+ (gnus-group-change-level
+ newsrc (if level level (if (<= (nth 1 (nth 2 newsrc))
+ gnus-level-subscribed)
+ (1+ gnus-level-subscribed)
+ gnus-level-default-subscribed)))
+ (gnus-group-update-group group))
+ ((and (stringp group)
+ (or (not (memq gnus-select-method gnus-have-read-active-file))
+ (gnus-gethash group gnus-active-hashtb)))
+ ;; Add new newsgroup.
+ (gnus-group-change-level
+ group
+ (if level level gnus-level-default-subscribed)
+ (or (and (member group gnus-zombie-list)
+ gnus-level-zombie)
+ gnus-level-killed)
+ (and (gnus-group-group-name)
+ (gnus-gethash (gnus-group-group-name) gnus-newsrc-hashtb)))
+ (gnus-group-update-group group))
+ (t (error "No such newsgroup: %s" group)))
+ (gnus-group-position-cursor)))
+
+(defun gnus-group-transpose-groups (n)
+ "Move the current newsgroup up N places.
+If given a negative prefix, move down instead. The difference between
+N and the number of steps taken is returned."
+ (interactive "p")
+ (or (gnus-group-group-name)
+ (error "No group on current line"))
+ (gnus-group-kill-group 1)
+ (prog1
+ (forward-line (- n))
+ (gnus-group-yank-group)
+ (gnus-group-position-cursor)))
+
+(defun gnus-group-kill-all-zombies ()
+ "Kill all zombie newsgroups."
+ (interactive)
+ (setq gnus-killed-list (nconc gnus-zombie-list gnus-killed-list))
+ (setq gnus-zombie-list nil)
+ (gnus-group-list-groups))
+
+(defun gnus-group-kill-region (begin end)
+ "Kill newsgroups in current region (excluding current point).
+The killed newsgroups can be yanked by using \\[gnus-group-yank-group]."
+ (interactive "r")
+ (let ((lines
+ ;; Count lines.
+ (save-excursion
+ (count-lines
+ (progn
+ (goto-char begin)
+ (beginning-of-line)
+ (point))
+ (progn
+ (goto-char end)
+ (beginning-of-line)
+ (point))))))
+ (goto-char begin)
+ (beginning-of-line) ;Important when LINES < 1
+ (gnus-group-kill-group lines)))
+
+(defun gnus-group-kill-group (&optional n)
+ "The the next N groups.
+The killed newsgroups can be yanked by using \\[gnus-group-yank-group].
+However, only groups that were alive can be yanked; already killed
+groups or zombie groups can't be yanked.
+The return value is the name of the (last) group that was killed."
+ (interactive "P")
+ (let ((buffer-read-only nil)
+ (groups (gnus-group-process-prefix n))
+ group entry level)
+ (while groups
+ (setq group (car groups)
+ groups (cdr groups))
+ (gnus-group-remove-mark group)
+ (setq level (gnus-group-group-level))
+ (gnus-delete-line)
+ (if (setq entry (gnus-gethash group gnus-newsrc-hashtb))
+ (setq gnus-list-of-killed-groups
+ (cons (cons (car entry) (nth 2 entry))
+ gnus-list-of-killed-groups)))
+ (gnus-group-change-level
+ (if entry entry group) gnus-level-killed (if entry nil level)))
+ (gnus-group-position-cursor)
+ group))
+
+(defun gnus-group-yank-group (&optional arg)
+ "Yank the last newsgroups killed with \\[gnus-group-kill-group],
+inserting it before the current newsgroup. The numeric ARG specifies
+how many newsgroups are to be yanked. The name of the (last)
+newsgroup yanked is returned."
+ (interactive "p")
+ (if (not arg) (setq arg 1))
+ (let (info group prev)
+ (while (>= (setq arg (1- arg)) 0)
+ (if (not (setq info (car gnus-list-of-killed-groups)))
+ (error "No more newsgroups to yank"))
+ (setq group (nth 2 info))
+ ;; Find which newsgroup to insert this one before - search
+ ;; backward until something suitable is found. If there are no
+ ;; other newsgroups in this buffer, just make this newsgroup the
+ ;; first newsgroup.
+ (setq prev (gnus-group-group-name))
+ (gnus-group-change-level
+ info (nth 2 info) gnus-level-killed
+ (and prev (gnus-gethash prev gnus-newsrc-hashtb))
+ t)
+ (gnus-group-insert-group-line-info (nth 1 info))
+ (setq gnus-list-of-killed-groups
+ (cdr gnus-list-of-killed-groups)))
+ (forward-line -1)
+ (gnus-group-position-cursor)
+ group))
+
+(defun gnus-group-list-all-groups (&optional arg)
+ "List all newsgroups with level ARG or lower.
+Default is gnus-level-unsubscribed, which lists all subscribed and most
+unsubscribed groups."
+ (interactive "P")
+ (gnus-group-list-groups (or arg gnus-level-unsubscribed) t))
+
+(defun gnus-group-list-killed ()
+ "List all killed newsgroups in the group buffer."
+ (interactive)
+ (if (not gnus-killed-list)
+ (gnus-message 6 "No killed groups")
+ (let (gnus-group-list-mode)
+ (funcall gnus-group-prepare-function
+ gnus-level-killed t gnus-level-killed))
+ (goto-char (point-min)))
+ (gnus-group-position-cursor))
+
+(defun gnus-group-list-zombies ()
+ "List all zombie newsgroups in the group buffer."
+ (interactive)
+ (if (not gnus-zombie-list)
+ (gnus-message 6 "No zombie groups")
+ (let (gnus-group-list-mode)
+ (funcall gnus-group-prepare-function
+ gnus-level-zombie t gnus-level-zombie))
+ (goto-char (point-min)))
+ (gnus-group-position-cursor))
+
+(defun gnus-group-get-new-news (&optional arg)
+ "Get newly arrived articles.
+If ARG is non-nil, it should be a number between one and nine to
+specify which levels you are interested in re-scanning."
+ (interactive "P")
+ (run-hooks 'gnus-get-new-news-hook)
+ (setq arg (gnus-group-default-level arg t))
+ (if (and gnus-read-active-file (not arg))
+ (progn
+ (gnus-read-active-file)
+ (gnus-get-unread-articles (or arg (1+ gnus-level-subscribed))))
+ (let ((gnus-read-active-file (if arg nil gnus-read-active-file)))
+ (gnus-get-unread-articles (or arg (1+ gnus-level-subscribed)))))
+ (gnus-group-list-groups))
+
+(defun gnus-group-get-new-news-this-group (&optional n)
+ "Check for newly arrived news in the current group (and the N-1 next groups).
+The difference between N and the number of newsgroup checked is returned.
+If N is negative, this group and the N-1 previous groups will be checked."
+ (interactive "P")
+ (let* ((groups (gnus-group-process-prefix n))
+ (ret (if (numberp n) (- n (length groups)) 0))
+ group)
+ (while groups
+ (setq group (car groups)
+ groups (cdr groups))
+ (gnus-group-remove-mark group)
+ (or (gnus-get-new-news-in-group group)
+ (progn
+ (ding)
+ (message "%s error: %s" group (gnus-status-message group))
+ (sit-for 2))))
+ (gnus-group-next-unread-group 1 t)
+ (gnus-summary-position-cursor)
+ ret))
+
+(defun gnus-get-new-news-in-group (group)
+ (and group
+ (gnus-activate-group group)
+ (progn
+ (gnus-get-unread-articles-in-group
+ (nth 2 (gnus-gethash group gnus-newsrc-hashtb))
+ (gnus-gethash group gnus-active-hashtb))
+ (gnus-group-update-group-line)
+ t)))
+
+(defun gnus-group-fetch-faq (group)
+ "Fetch the FAQ for the current group."
+ (interactive (list (gnus-group-real-name (gnus-group-group-name))))
+ (or group (error "No group name given"))
+ (let ((file (concat gnus-group-faq-directory (gnus-group-real-name group))))
+ (if (not (file-exists-p file))
+ (error "No such file: %s" file)
+ (find-file file))))
+
+(defun gnus-group-describe-group (force &optional group)
+ "Display a description of the current newsgroup."
+ (interactive (list current-prefix-arg (gnus-group-group-name)))
+ (and force (setq gnus-description-hashtb nil))
+ (let ((method (gnus-find-method-for-group group))
+ desc)
+ (or group (error "No group name given"))
+ (and (or (and gnus-description-hashtb
+ ;; We check whether this group's method has been
+ ;; queried for a description file.
+ (gnus-gethash
+ (gnus-group-prefixed-name "" method)
+ gnus-description-hashtb))
+ (setq desc (gnus-group-get-description group))
+ (gnus-read-descriptions-file method))
+ (message
+ (or desc (gnus-gethash group gnus-description-hashtb)
+ "No description available")))))
+
+;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
+(defun gnus-group-describe-all-groups (&optional force)
+ "Pop up a buffer with descriptions of all newsgroups."
+ (interactive "P")
+ (and force (setq gnus-description-hashtb nil))
+ (if (not (or gnus-description-hashtb
+ (gnus-read-all-descriptions-files)))
+ (error "Couldn't request descriptions file"))
+ (let ((buffer-read-only nil)
+ b)
+ (erase-buffer)
+ (mapatoms
+ (lambda (group)
+ (setq b (point))
+ (insert (format " *: %-20s %s\n" (symbol-name group)
+ (symbol-value group)))
+ (add-text-properties
+ b (1+ b) (list 'gnus-group group
+ 'gnus-unread t 'gnus-marked nil
+ 'gnus-level (1+ gnus-level-subscribed))))
+ gnus-description-hashtb)
+ (goto-char (point-min))
+ (gnus-group-position-cursor)))
+
+;; Suggested by by Daniel Quinlan <quinlan@best.com>.
+(defun gnus-group-apropos (regexp &optional search-description)
+ "List all newsgroups that have names that match a regexp."
+ (interactive "sGnus apropos (regexp): ")
+ (let ((prev "")
+ (obuf (current-buffer))
+ groups des)
+ ;; Go through all newsgroups that are known to Gnus.
+ (mapatoms
+ (lambda (group)
+ (and (symbol-name group)
+ (string-match regexp (symbol-name group))
+ (setq groups (cons (symbol-name group) groups))))
+ gnus-active-hashtb)
+ ;; Go through all descriptions that are known to Gnus.
+ (if search-description
+ (mapatoms
+ (lambda (group)
+ (and (string-match regexp (symbol-value group))
+ (gnus-gethash (symbol-name group) gnus-active-hashtb)
+ (setq groups (cons (symbol-name group) groups))))
+ gnus-description-hashtb))
+ (if (not groups)
+ (gnus-message 3 "No groups matched \"%s\"." regexp)
+ ;; Print out all the groups.
+ (save-excursion
+ (pop-to-buffer "*Gnus Help*")
+ (buffer-disable-undo (current-buffer))
+ (erase-buffer)
+ (setq groups (sort groups 'string<))
+ (while groups
+ ;; Groups may be entered twice into the list of groups.
+ (if (not (string= (car groups) prev))
+ (progn
+ (insert (setq prev (car groups)) "\n")
+ (if (and gnus-description-hashtb
+ (setq des (gnus-gethash (car groups)
+ gnus-description-hashtb)))
+ (insert " " des "\n"))))
+ (setq groups (cdr groups)))
+ (goto-char (point-min))))
+ (pop-to-buffer obuf)))
+
+(defun gnus-group-description-apropos (regexp)
+ "List all newsgroups that have names or descriptions that match a regexp."
+ (interactive "sGnus description apropos (regexp): ")
+ (if (not (or gnus-description-hashtb
+ (gnus-read-all-descriptions-files)))
+ (error "Couldn't request descriptions file"))
+ (gnus-group-apropos regexp t))
+
+;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
+(defun gnus-group-list-matching (level regexp &optional all lowest)
+ "List all groups with unread articles that match REGEXP.
+If the prefix LEVEL is non-nil, it should be a number that says which
+level to cut off listing groups.
+If ALL, also list groups with no unread articles.
+If LOWEST, don't list groups with level lower than LOWEST."
+ (interactive "P\nsList newsgroups matching: ")
+ (gnus-group-prepare-flat (or level gnus-level-subscribed)
+ all (or lowest 1) regexp)
+ (goto-char (point-min))
+ (gnus-group-position-cursor))
+
+(defun gnus-group-list-all-matching (level regexp &optional lowest)
+ "List all groups that match REGEXP.
+If the prefix LEVEL is non-nil, it should be a number that says which
+level to cut off listing groups.
+If LOWEST, don't list groups with level lower than LOWEST."
+ (interactive "P\nsList newsgroups matching: ")
+ (gnus-group-list-matching (or level gnus-level-killed) regexp t lowest))
+
+;; Suggested by Jack Vinson <vinson@unagi.cis.upenn.edu>.
+(defun gnus-group-save-newsrc ()
+ "Save the Gnus startup files."
+ (interactive)
+ (gnus-save-newsrc-file))
+
+(defun gnus-group-restart (&optional arg)
+ "Force Gnus to read the .newsrc file."
+ (interactive "P")
+ (gnus-save-newsrc-file)
+ (gnus-setup-news 'force)
+ (gnus-group-list-groups arg))
+
+(defun gnus-group-read-init-file ()
+ "Read the Gnus elisp init file."
+ (interactive)
+ (gnus-read-init-file))
+
+(defun gnus-group-check-bogus-groups (&optional silent)
+ "Check bogus newsgroups.
+If given a prefix, don't ask for confirmation before removing a bogus
+group."
+ (interactive "P")
+ (gnus-check-bogus-newsgroups (and (not silent) (not gnus-expert-user)))
+ (gnus-group-list-groups))
+
+(defun gnus-group-edit-global-kill (&optional article group)
+ "Edit the global kill file.
+If GROUP, edit that local kill file instead."
+ (interactive "P")
+ (setq gnus-current-kill-article article)
+ (gnus-kill-file-edit-file group)
+ (gnus-message
+ 6
+ (substitute-command-keys
+ "Editing a global kill file (Type \\[gnus-kill-file-exit] to exit)")))
+
+(defun gnus-group-edit-local-kill (article group)
+ "Edit a local kill file."
+ (interactive (list nil (gnus-group-group-name)))
+ (gnus-group-edit-global-kill article group))
+
+(defun gnus-group-force-update ()
+ "Update `.newsrc' file."
+ (interactive)
+ (gnus-save-newsrc-file))
+
+(defun gnus-group-suspend ()
+ "Suspend the current Gnus session.
+In fact, cleanup buffers except for group mode buffer.
+The hook gnus-suspend-gnus-hook is called before actually suspending."
+ (interactive)
+ (run-hooks 'gnus-suspend-gnus-hook)
+ ;; Kill Gnus buffers except for group mode buffer.
+ (let ((group-buf (get-buffer gnus-group-buffer)))
+ ;; Do this on a separate list in case the user does a ^G before we finish
+ (let ((gnus-buffer-list
+ (delq group-buf (delq gnus-dribble-buffer
+ (append gnus-buffer-list nil)))))
+ (while gnus-buffer-list
+ (gnus-kill-buffer (car gnus-buffer-list))
+ (setq gnus-buffer-list (cdr gnus-buffer-list))))
+ (if group-buf
+ (progn
+ (setq gnus-buffer-list (list group-buf))
+ (bury-buffer group-buf)
+ (delete-windows-on group-buf t)))))
+
+(defun gnus-group-clear-dribble ()
+ "Clear all information from the dribble buffer."
+ (interactive)
+ (gnus-dribble-clear))
+
+(defun gnus-group-exit ()
+ "Quit reading news after updating .newsrc.eld and .newsrc.
+The hook `gnus-exit-gnus-hook' is called before actually exiting."
+ (interactive)
+ (if (or noninteractive ;For gnus-batch-kill
+ (not (gnus-server-opened gnus-select-method)) ;NNTP connection closed
+ (not gnus-interactive-exit) ;Without confirmation
+ gnus-expert-user
+ (gnus-y-or-n-p "Are you sure you want to quit reading news? "))
+ (progn
+ (run-hooks 'gnus-exit-gnus-hook)
+ ;; Offer to save data from non-quitted summary buffers.
+ (gnus-offer-save-summaries)
+ ;; Save the newsrc file(s).
+ (gnus-save-newsrc-file)
+ ;; Kill-em-all.
+ (gnus-close-backends)
+ ;; Reset everything.
+ (gnus-clear-system))))
+
+(defun gnus-close-backends ()
+ ;; Send a close request to all backends that support such a request.
+ (let ((methods gnus-valid-select-methods)
+ func)
+ (while methods
+ (if (fboundp (setq func (intern (concat (car (car methods))
+ "-request-close"))))
+ (funcall func))
+ (setq methods (cdr methods)))))
+
+(defun gnus-group-quit ()
+ "Quit reading news without updating .newsrc.eld or .newsrc.
+The hook `gnus-exit-gnus-hook' is called before actually exiting."
+ (interactive)
+ (if (or noninteractive ;For gnus-batch-kill
+ (zerop (buffer-size))
+ (not (gnus-server-opened gnus-select-method))
+ gnus-expert-user
+ (not gnus-current-startup-file)
+ (gnus-yes-or-no-p
+ (format "Quit reading news without saving %s? "
+ (file-name-nondirectory gnus-current-startup-file))))
+ (progn
+ (run-hooks 'gnus-exit-gnus-hook)
+ (if gnus-use-full-window
+ (delete-other-windows)
+ (gnus-remove-some-windows))
+ (gnus-dribble-save)
+ (gnus-close-backends)
+ (gnus-clear-system))))
+
+(defun gnus-offer-save-summaries ()
+ (save-excursion
+ (let ((buflist (buffer-list))
+ buffers bufname)
+ (while buflist
+ (and (setq bufname (buffer-name (car buflist)))
+ (string-match "Summary" bufname)
+ (save-excursion
+ (set-buffer bufname)
+ ;; We check that this is, indeed, a summary buffer.
+ (eq major-mode 'gnus-summary-mode))
+ (setq buffers (cons bufname buffers)))
+ (setq buflist (cdr buflist)))
+ (and buffers
+ (map-y-or-n-p
+ "Update summary buffer %s? "
+ (lambda (buf)
+ (set-buffer buf)
+ (gnus-summary-exit))
+ buffers)))))
+
+(defun gnus-group-describe-briefly ()
+ "Give a one line description of the group mode commands."
+ (interactive)
+ (gnus-message 7 (substitute-command-keys "\\<gnus-group-mode-map>\\[gnus-group-read-group]:Select \\[gnus-group-next-unread-group]:Forward \\[gnus-group-prev-unread-group]:Backward \\[gnus-group-exit]:Exit \\[gnus-info-find-node]:Run Info \\[gnus-group-describe-briefly]:This help")))
+
+(defun gnus-group-browse-foreign-server (method)
+ "Browse a foreign news server.
+If called interactively, this function will ask for a select method
+ (nntp, nnspool, etc.) and a server address (eg. nntp.some.where).
+If not, METHOD should be a list where the first element is the method
+and the second element is the address."
+ (interactive
+ (list (let ((how (completing-read
+ "Which backend: "
+ (append gnus-valid-select-methods gnus-server-alist)
+ nil t "nntp")))
+ ;; We either got a backend name or a virtual server name.
+ ;; If the first, we also need an address.
+ (if (assoc how gnus-valid-select-methods)
+ (list (intern how)
+ ;; Suggested by mapjph@bath.ac.uk.
+ (completing-read
+ "Address: "
+ (mapcar (lambda (server) (list server))
+ gnus-secondary-servers)))
+ ;; We got a server name, so we find the method.
+ (gnus-server-to-method how)))))
+ (gnus-browse-foreign-server method))
+
+\f
+;;;
+;;; Browse Server Mode
+;;;
+
+(defvar gnus-browse-mode-hook nil)
+(defvar gnus-browse-mode-map nil)
+(put 'gnus-browse-mode 'mode-class 'special)
+
+(if gnus-browse-mode-map
+ nil
+ (setq gnus-browse-mode-map (make-keymap))
+ (suppress-keymap gnus-browse-mode-map)
+ (define-key gnus-browse-mode-map " " 'gnus-browse-read-group)
+ (define-key gnus-browse-mode-map "=" 'gnus-browse-select-group)
+ (define-key gnus-browse-mode-map "n" 'gnus-browse-next-group)
+ (define-key gnus-browse-mode-map "p" 'gnus-browse-prev-group)
+ (define-key gnus-browse-mode-map "\177" 'gnus-browse-prev-group)
+ (define-key gnus-browse-mode-map "N" 'gnus-browse-next-group)
+ (define-key gnus-browse-mode-map "P" 'gnus-browse-prev-group)
+ (define-key gnus-browse-mode-map "\M-n" 'gnus-browse-next-group)
+ (define-key gnus-browse-mode-map "\M-p" 'gnus-browse-prev-group)
+ (define-key gnus-browse-mode-map "\r" 'gnus-browse-select-group)
+ (define-key gnus-browse-mode-map "u" 'gnus-browse-unsubscribe-current-group)
+ (define-key gnus-browse-mode-map "l" 'gnus-browse-exit)
+ (define-key gnus-browse-mode-map "L" 'gnus-browse-exit)
+ (define-key gnus-browse-mode-map "q" 'gnus-browse-exit)
+ (define-key gnus-browse-mode-map "Q" 'gnus-browse-exit)
+ (define-key gnus-browse-mode-map "\C-c\C-c" 'gnus-browse-exit)
+ (define-key gnus-browse-mode-map "?" 'gnus-browse-describe-briefly)
+ (define-key gnus-browse-mode-map "\C-c\C-i" 'gnus-info-find-node)
+ )
+
+(defvar gnus-browse-current-method nil)
+(defvar gnus-browse-return-buffer nil)
+
+(defvar gnus-browse-buffer "*Gnus Browse Server*")
+
+(defun gnus-browse-foreign-server (method &optional return-buffer)
+ (setq gnus-browse-current-method method)
+ (setq gnus-browse-return-buffer return-buffer)
+ (let ((gnus-select-method method)
+ groups group)
+ (gnus-message 5 "Connecting to %s..." (nth 1 method))
+ (or (gnus-check-server method)
+ (error "Unable to contact server: %s" (gnus-status-message method)))
+ (or (gnus-request-list method)
+ (error "Couldn't request list: %s" (gnus-status-message method)))
+ (get-buffer-create gnus-browse-buffer)
+ (gnus-add-current-to-buffer-list)
+ (and gnus-carpal (gnus-carpal-setup-buffer 'browse))
+ (gnus-configure-windows 'browse)
+ (buffer-disable-undo (current-buffer))
+ (let ((buffer-read-only nil))
+ (erase-buffer))
+ (gnus-browse-mode)
+ (setq mode-line-buffer-identification
+ (format
+ "Gnus Browse Server {%s:%s}" (car method) (car (cdr method))))
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ (let ((cur (current-buffer)))
+ (goto-char (point-min))
+ (or (string= gnus-ignored-newsgroups "")
+ (delete-matching-lines gnus-ignored-newsgroups))
+ (while (re-search-forward
+ "\\(^[^ \t]+\\)[ \t]+[0-9]+[ \t]+[0-9]+" nil t)
+ (goto-char (match-end 1))
+ (setq groups (cons (cons (buffer-substring (match-beginning 1)
+ (match-end 1))
+ (max 0 (- (1+ (read cur)) (read cur))))
+ groups)))))
+ (setq groups (sort groups
+ (lambda (l1 l2)
+ (string< (car l1) (car l2)))))
+ (let ((buffer-read-only nil))
+ (while groups
+ (setq group (car groups))
+ (insert
+ (format "K%7d: %s\n" (cdr group) (car group)))
+ (setq groups (cdr groups))))
+ (switch-to-buffer (current-buffer))
+ (goto-char (point-min))
+ (gnus-group-position-cursor)))
+
+(defun gnus-browse-mode ()
+ "Major mode for browsing a foreign server.
+
+All normal editing commands are switched off.
+
+\\<gnus-browse-mode-map>
+The only things you can do in this buffer is
+
+1) `\\[gnus-browse-unsubscribe-current-group]' to subscribe to a group.
+The group will be inserted into the group buffer upon exit from this
+buffer.
+
+2) `\\[gnus-browse-read-group]' to read a group ephemerally.
+
+3) `\\[gnus-browse-exit]' to return to the group buffer."
+ (interactive)
+ (kill-all-local-variables)
+ (if gnus-visual (gnus-browse-make-menu-bar))
+ (gnus-simplify-mode-line)
+ (setq major-mode 'gnus-browse-mode)
+ (setq mode-name "Browse Server")
+ (setq mode-line-process nil)
+ (use-local-map gnus-browse-mode-map)
+ (buffer-disable-undo (current-buffer))
+ (setq truncate-lines t)
+ (setq buffer-read-only t)
+ (run-hooks 'gnus-browse-mode-hook))
+
+(defun gnus-browse-read-group (&optional no-article)
+ "Enter the group at the current line."
+ (interactive)
+ (let ((group (gnus-browse-group-name)))
+ (or (gnus-group-read-ephemeral-group
+ group gnus-browse-current-method nil
+ (cons (current-buffer) 'browse))
+ (error "Couldn't enter %s" group))))
+
+(defun gnus-browse-select-group ()
+ "Select the current group."
+ (interactive)
+ (gnus-browse-read-group 'no))
+
+(defun gnus-browse-next-group (n)
+ "Go to the next group."
+ (interactive "p")
+ (prog1
+ (forward-line n)
+ (gnus-group-position-cursor)))
+
+(defun gnus-browse-prev-group (n)
+ "Go to the next group."
+ (interactive "p")
+ (gnus-browse-next-group (- n)))
+
+(defun gnus-browse-unsubscribe-current-group (arg)
+ "(Un)subscribe to the next ARG groups."
+ (interactive "p")
+ (and (eobp)
+ (error "No group at current line."))
+ (let ((ward (if (< arg 0) -1 1))
+ (arg (abs arg)))
+ (while (and (> arg 0)
+ (not (eobp))
+ (gnus-browse-unsubscribe-group)
+ (zerop (gnus-browse-next-group ward)))
+ (setq arg (1- arg)))
+ (gnus-group-position-cursor)
+ (if (/= 0 arg) (gnus-message 7 "No more newsgroups"))
+ arg))
+
+(defun gnus-browse-group-name ()
+ (save-excursion
+ (beginning-of-line)
+ (if (not (re-search-forward ": \\(.*\\)$" (gnus-point-at-eol) t))
+ ()
+ (gnus-group-prefixed-name
+ (buffer-substring (match-beginning 1) (match-end 1))
+ gnus-browse-current-method))))
+
+(defun gnus-browse-unsubscribe-group ()
+ "Toggle subscription of the current group in the browse buffer."
+ (let ((sub nil)
+ (buffer-read-only nil)
+ group)
+ (save-excursion
+ (beginning-of-line)
+ ;; If this group it killed, then we want to subscribe it.
+ (if (= (following-char) ?K) (setq sub t))
+ (setq group (gnus-browse-group-name))
+ (delete-char 1)
+ (if sub
+ (progn
+ (gnus-group-change-level
+ (list t group gnus-level-default-subscribed
+ nil nil gnus-browse-current-method)
+ gnus-level-default-subscribed gnus-level-killed
+ (and (car (nth 1 gnus-newsrc-alist))
+ (gnus-gethash (car (nth 1 gnus-newsrc-alist))
+ gnus-newsrc-hashtb))
+ t)
+ (insert ? ))
+ (gnus-group-change-level
+ group gnus-level-killed gnus-level-default-subscribed)
+ (insert ?K)))
+ t))
+
+(defun gnus-browse-exit ()
+ "Quit browsing and return to the group buffer."
+ (interactive)
+ (if (eq major-mode 'gnus-browse-mode)
+ (kill-buffer (current-buffer)))
+ (if gnus-browse-return-buffer
+ (gnus-configure-windows 'server 'force)
+ (gnus-configure-windows 'group 'force)
+ (gnus-group-list-groups nil)))
+
+(defun gnus-browse-describe-briefly ()
+ "Give a one line description of the group mode commands."
+ (interactive)
+ (gnus-message 6
+ (substitute-command-keys "\\<gnus-browse-mode-map>\\[gnus-group-next-group]:Forward \\[gnus-group-prev-group]:Backward \\[gnus-browse-exit]:Exit \\[gnus-info-find-node]:Run Info \\[gnus-browse-describe-briefly]:This help")))
+
+\f
+;;;
+;;; Gnus summary mode
+;;;
+
+(defvar gnus-summary-mode-map nil)
+(defvar gnus-summary-mark-map nil)
+(defvar gnus-summary-mscore-map nil)
+(defvar gnus-summary-article-map nil)
+(defvar gnus-summary-thread-map nil)
+(defvar gnus-summary-goto-map nil)
+(defvar gnus-summary-exit-map nil)
+(defvar gnus-summary-interest-map nil)
+(defvar gnus-summary-sort-map nil)
+(defvar gnus-summary-backend-map nil)
+(defvar gnus-summary-save-map nil)
+(defvar gnus-summary-wash-map nil)
+(defvar gnus-summary-wash-hide-map nil)
+(defvar gnus-summary-wash-highlight-map nil)
+(defvar gnus-summary-wash-time-map nil)
+(defvar gnus-summary-help-map nil)
+
+(put 'gnus-summary-mode 'mode-class 'special)
+
+(if gnus-summary-mode-map
+ nil
+ (setq gnus-summary-mode-map (make-keymap))
+ (suppress-keymap gnus-summary-mode-map)
+
+ ;; Non-orthogonal keys
+
+ (define-key gnus-summary-mode-map " " 'gnus-summary-next-page)
+ (define-key gnus-summary-mode-map "\177" 'gnus-summary-prev-page)
+ (define-key gnus-summary-mode-map "\r" 'gnus-summary-scroll-up)
+ (define-key gnus-summary-mode-map "n" 'gnus-summary-next-unread-article)
+ (define-key gnus-summary-mode-map "p" 'gnus-summary-prev-unread-article)
+ (define-key gnus-summary-mode-map "N" 'gnus-summary-next-article)
+ (define-key gnus-summary-mode-map "P" 'gnus-summary-prev-article)
+ (define-key gnus-summary-mode-map "\M-\C-n" 'gnus-summary-next-same-subject)
+ (define-key gnus-summary-mode-map "\M-\C-p" 'gnus-summary-prev-same-subject)
+ (define-key gnus-summary-mode-map "\M-n" 'gnus-summary-next-unread-subject)
+ (define-key gnus-summary-mode-map "\M-p" 'gnus-summary-prev-unread-subject)
+ (define-key gnus-summary-mode-map "." 'gnus-summary-first-unread-article)
+ (define-key gnus-summary-mode-map "," 'gnus-summary-best-unread-article)
+ (define-key gnus-summary-mode-map
+ "\M-s" 'gnus-summary-search-article-forward)
+ (define-key gnus-summary-mode-map
+ "\M-r" 'gnus-summary-search-article-backward)
+ (define-key gnus-summary-mode-map "<" 'gnus-summary-beginning-of-article)
+ (define-key gnus-summary-mode-map ">" 'gnus-summary-end-of-article)
+ (define-key gnus-summary-mode-map "j" 'gnus-summary-goto-subject)
+ (define-key gnus-summary-mode-map "^" 'gnus-summary-refer-parent-article)
+ (define-key gnus-summary-mode-map "\M-^" 'gnus-summary-refer-article)
+ (define-key gnus-summary-mode-map "u" 'gnus-summary-tick-article-forward)
+ (define-key gnus-summary-mode-map "!" 'gnus-summary-tick-article-forward)
+ (define-key gnus-summary-mode-map "U" 'gnus-summary-tick-article-backward)
+ (define-key gnus-summary-mode-map "d" 'gnus-summary-mark-as-read-forward)
+ (define-key gnus-summary-mode-map "D" 'gnus-summary-mark-as-read-backward)
+ (define-key gnus-summary-mode-map "E" 'gnus-summary-mark-as-expirable)
+ (define-key gnus-summary-mode-map "\M-u" 'gnus-summary-clear-mark-forward)
+ (define-key gnus-summary-mode-map "\M-U" 'gnus-summary-clear-mark-backward)
+ (define-key gnus-summary-mode-map
+ "k" 'gnus-summary-kill-same-subject-and-select)
+ (define-key gnus-summary-mode-map "\C-k" 'gnus-summary-kill-same-subject)
+ (define-key gnus-summary-mode-map "\M-\C-k" 'gnus-summary-kill-thread)
+ (define-key gnus-summary-mode-map "\M-\C-l" 'gnus-summary-lower-thread)
+ (define-key gnus-summary-mode-map "e" 'gnus-summary-edit-article)
+ (define-key gnus-summary-mode-map "#" 'gnus-summary-mark-as-processable)
+ (define-key gnus-summary-mode-map "\M-#" 'gnus-summary-unmark-as-processable)
+ (define-key gnus-summary-mode-map "\M-\C-t" 'gnus-summary-toggle-threads)
+ (define-key gnus-summary-mode-map "\M-\C-s" 'gnus-summary-show-thread)
+ (define-key gnus-summary-mode-map "\M-\C-h" 'gnus-summary-hide-thread)
+ (define-key gnus-summary-mode-map "\M-\C-f" 'gnus-summary-next-thread)
+ (define-key gnus-summary-mode-map "\M-\C-b" 'gnus-summary-prev-thread)
+ (define-key gnus-summary-mode-map "\M-\C-u" 'gnus-summary-up-thread)
+ (define-key gnus-summary-mode-map "\M-\C-d" 'gnus-summary-down-thread)
+ (define-key gnus-summary-mode-map "&" 'gnus-summary-execute-command)
+ (define-key gnus-summary-mode-map "c" 'gnus-summary-catchup-and-exit)
+ (define-key gnus-summary-mode-map "\C-w" 'gnus-summary-mark-region-as-read)
+ (define-key gnus-summary-mode-map "\C-t" 'gnus-summary-toggle-truncation)
+ (define-key gnus-summary-mode-map "?" 'gnus-summary-mark-as-dormant)
+ (define-key gnus-summary-mode-map
+ "\C-c\M-\C-s" 'gnus-summary-show-all-expunged)
+ (define-key gnus-summary-mode-map
+ "\C-c\C-s\C-n" 'gnus-summary-sort-by-number)
+ (define-key gnus-summary-mode-map
+ "\C-c\C-s\C-a" 'gnus-summary-sort-by-author)
+ (define-key gnus-summary-mode-map
+ "\C-c\C-s\C-s" 'gnus-summary-sort-by-subject)
+ (define-key gnus-summary-mode-map "\C-c\C-s\C-d" 'gnus-summary-sort-by-date)
+ (define-key gnus-summary-mode-map "\C-c\C-s\C-i" 'gnus-summary-sort-by-score)
+ (define-key gnus-summary-mode-map "=" 'gnus-summary-expand-window)
+ (define-key gnus-summary-mode-map
+ "\C-x\C-s" 'gnus-summary-reselect-current-group)
+ (define-key gnus-summary-mode-map "\M-g" 'gnus-summary-rescan-group)
+ (define-key gnus-summary-mode-map "w" 'gnus-summary-stop-page-breaking)
+ (define-key gnus-summary-mode-map "\C-c\C-r" 'gnus-summary-caesar-message)
+ (define-key gnus-summary-mode-map "\M-t" 'gnus-summary-toggle-mime)
+ (define-key gnus-summary-mode-map "f" 'gnus-summary-followup)
+ (define-key gnus-summary-mode-map "F" 'gnus-summary-followup-with-original)
+ (define-key gnus-summary-mode-map "C" 'gnus-summary-cancel-article)
+ (define-key gnus-summary-mode-map "r" 'gnus-summary-reply)
+ (define-key gnus-summary-mode-map "R" 'gnus-summary-reply-with-original)
+ (define-key gnus-summary-mode-map "\C-c\C-f" 'gnus-summary-mail-forward)
+ (define-key gnus-summary-mode-map "o" 'gnus-summary-save-article)
+ (define-key gnus-summary-mode-map "\C-o" 'gnus-summary-save-article-mail)
+ (define-key gnus-summary-mode-map "|" 'gnus-summary-pipe-output)
+ (define-key gnus-summary-mode-map "\M-k" 'gnus-summary-edit-local-kill)
+ (define-key gnus-summary-mode-map "\M-K" 'gnus-summary-edit-global-kill)
+ (define-key gnus-summary-mode-map "V" 'gnus-version)
+ (define-key gnus-summary-mode-map "\C-c\C-d" 'gnus-summary-describe-group)
+ (define-key gnus-summary-mode-map "q" 'gnus-summary-exit)
+ (define-key gnus-summary-mode-map "Q" 'gnus-summary-exit-no-update)
+ (define-key gnus-summary-mode-map "\C-c\C-i" 'gnus-info-find-node)
+ (define-key gnus-summary-mode-map gnus-mouse-2 'gnus-mouse-pick-article)
+ (define-key gnus-summary-mode-map "m" 'gnus-summary-mail-other-window)
+ (define-key gnus-summary-mode-map "a" 'gnus-summary-post-news)
+ (define-key gnus-summary-mode-map
+ "x" 'gnus-summary-remove-lines-marked-as-read)
+; (define-key gnus-summary-mode-map "X" 'gnus-summary-remove-lines-marked-with)
+ (define-key gnus-summary-mode-map "s" 'gnus-summary-isearch-article)
+ (define-key gnus-summary-mode-map "t" 'gnus-summary-toggle-header)
+ (define-key gnus-summary-mode-map "g" 'gnus-summary-show-article)
+; (define-key gnus-summary-mode-map "?" 'gnus-summary-describe-briefly)
+ (define-key gnus-summary-mode-map "l" 'gnus-summary-goto-last-article)
+ (define-key gnus-summary-mode-map "\C-c\C-v\C-v" 'gnus-uu-decode-uu-view)
+ (define-key gnus-summary-mode-map "\C-d" 'gnus-summary-enter-digest-group)
+ (define-key gnus-summary-mode-map "v" 'gnus-summary-verbose-headers)
+ (define-key gnus-summary-mode-map "\C-c\C-b" 'gnus-bug)
+
+
+ ;; Sort of orthogonal keymap
+ (define-prefix-command 'gnus-summary-mark-map)
+ (define-key gnus-summary-mode-map "M" 'gnus-summary-mark-map)
+ (define-key gnus-summary-mark-map "t" 'gnus-summary-tick-article-forward)
+ (define-key gnus-summary-mark-map "!" 'gnus-summary-tick-article-forward)
+ (define-key gnus-summary-mark-map "d" 'gnus-summary-mark-as-read-forward)
+ (define-key gnus-summary-mark-map "r" 'gnus-summary-mark-as-read-forward)
+ (define-key gnus-summary-mark-map "c" 'gnus-summary-clear-mark-forward)
+ (define-key gnus-summary-mark-map " " 'gnus-summary-clear-mark-forward)
+ (define-key gnus-summary-mark-map "e" 'gnus-summary-mark-as-expirable)
+ (define-key gnus-summary-mark-map "x" 'gnus-summary-mark-as-expirable)
+ (define-key gnus-summary-mark-map "?" 'gnus-summary-mark-as-dormant)
+ (define-key gnus-summary-mark-map "b" 'gnus-summary-set-bookmark)
+ (define-key gnus-summary-mark-map "B" 'gnus-summary-remove-bookmark)
+ (define-key gnus-summary-mark-map "#" 'gnus-summary-mark-as-processable)
+ (define-key gnus-summary-mark-map "\M-#" 'gnus-summary-unmark-as-processable)
+ (define-key gnus-summary-mark-map
+ "\M-r" 'gnus-summary-remove-lines-marked-as-read)
+ (define-key gnus-summary-mark-map
+ "\M-\C-r" 'gnus-summary-remove-lines-marked-with)
+ (define-key gnus-summary-mark-map "D" 'gnus-summary-show-all-dormant)
+ (define-key gnus-summary-mark-map "\M-D" 'gnus-summary-hide-all-dormant)
+ (define-key gnus-summary-mark-map "S" 'gnus-summary-show-all-expunged)
+ (define-key gnus-summary-mark-map "C" 'gnus-summary-catchup)
+ (define-key gnus-summary-mark-map "H" 'gnus-summary-catchup-to-here)
+ (define-key gnus-summary-mark-map "\C-c" 'gnus-summary-catchup-all)
+ (define-key gnus-summary-mark-map
+ "k" 'gnus-summary-kill-same-subject-and-select)
+ (define-key gnus-summary-mark-map "K" 'gnus-summary-kill-same-subject)
+
+ (define-prefix-command 'gnus-summary-mscore-map)
+ (define-key gnus-summary-mark-map "V" 'gnus-summary-mscore-map)
+ (define-key gnus-summary-mscore-map "c" 'gnus-summary-clear-above)
+ (define-key gnus-summary-mscore-map "u" 'gnus-summary-tick-above)
+ (define-key gnus-summary-mscore-map "m" 'gnus-summary-mark-above)
+ (define-key gnus-summary-mscore-map "k" 'gnus-summary-kill-below)
+
+ (define-key gnus-summary-mark-map "P" 'gnus-uu-mark-map)
+
+ (define-key gnus-summary-mode-map "S" 'gnus-summary-send-map)
+
+ (define-prefix-command 'gnus-summary-goto-map)
+ (define-key gnus-summary-mode-map "G" 'gnus-summary-goto-map)
+ (define-key gnus-summary-goto-map "n" 'gnus-summary-next-unread-article)
+ (define-key gnus-summary-goto-map "p" 'gnus-summary-prev-unread-article)
+ (define-key gnus-summary-goto-map "N" 'gnus-summary-next-article)
+ (define-key gnus-summary-goto-map "P" 'gnus-summary-prev-article)
+ (define-key gnus-summary-goto-map "\C-n" 'gnus-summary-next-same-subject)
+ (define-key gnus-summary-goto-map "\C-p" 'gnus-summary-prev-same-subject)
+ (define-key gnus-summary-goto-map "\M-n" 'gnus-summary-next-unread-subject)
+ (define-key gnus-summary-goto-map "\M-p" 'gnus-summary-prev-unread-subject)
+ (define-key gnus-summary-goto-map "f" 'gnus-summary-first-unread-article)
+ (define-key gnus-summary-goto-map "b" 'gnus-summary-best-unread-article)
+ (define-key gnus-summary-goto-map "g" 'gnus-summary-goto-subject)
+ (define-key gnus-summary-goto-map "l" 'gnus-summary-goto-last-article)
+ (define-key gnus-summary-goto-map "p" 'gnus-summary-pop-article)
+
+
+ (define-prefix-command 'gnus-summary-thread-map)
+ (define-key gnus-summary-mode-map "T" 'gnus-summary-thread-map)
+ (define-key gnus-summary-thread-map "k" 'gnus-summary-kill-thread)
+ (define-key gnus-summary-thread-map "l" 'gnus-summary-lower-thread)
+ (define-key gnus-summary-thread-map "i" 'gnus-summary-raise-thread)
+ (define-key gnus-summary-thread-map "T" 'gnus-summary-toggle-threads)
+ (define-key gnus-summary-thread-map "s" 'gnus-summary-show-thread)
+ (define-key gnus-summary-thread-map "S" 'gnus-summary-show-all-threads)
+ (define-key gnus-summary-thread-map "h" 'gnus-summary-hide-thread)
+ (define-key gnus-summary-thread-map "H" 'gnus-summary-hide-all-threads)
+ (define-key gnus-summary-thread-map "n" 'gnus-summary-next-thread)
+ (define-key gnus-summary-thread-map "p" 'gnus-summary-prev-thread)
+ (define-key gnus-summary-thread-map "u" 'gnus-summary-up-thread)
+ (define-key gnus-summary-thread-map "d" 'gnus-summary-down-thread)
+ (define-key gnus-summary-thread-map "#" 'gnus-uu-mark-thread)
+
+
+ (define-prefix-command 'gnus-summary-exit-map)
+ (define-key gnus-summary-mode-map "Z" 'gnus-summary-exit-map)
+ (define-key gnus-summary-exit-map "c" 'gnus-summary-catchup-and-exit)
+ (define-key gnus-summary-exit-map "C" 'gnus-summary-catchup-all-and-exit)
+ (define-key gnus-summary-exit-map "E" 'gnus-summary-exit-no-update)
+ (define-key gnus-summary-exit-map "Q" 'gnus-summary-exit)
+ (define-key gnus-summary-exit-map "Z" 'gnus-summary-exit)
+ (define-key gnus-summary-exit-map
+ "n" 'gnus-summary-catchup-and-goto-next-group)
+ (define-key gnus-summary-exit-map "R" 'gnus-summary-reselect-current-group)
+ (define-key gnus-summary-exit-map "G" 'gnus-summary-rescan-group)
+ (define-key gnus-summary-exit-map "N" 'gnus-summary-next-group)
+ (define-key gnus-summary-exit-map "P" 'gnus-summary-prev-group)
+
+
+ (define-prefix-command 'gnus-summary-article-map)
+ (define-key gnus-summary-mode-map "A" 'gnus-summary-article-map)
+ (define-key gnus-summary-article-map " " 'gnus-summary-next-page)
+ (define-key gnus-summary-article-map "n" 'gnus-summary-next-page)
+ (define-key gnus-summary-article-map "\177" 'gnus-summary-prev-page)
+ (define-key gnus-summary-article-map "p" 'gnus-summary-prev-page)
+ (define-key gnus-summary-article-map "\r" 'gnus-summary-scroll-up)
+ (define-key gnus-summary-article-map "<" 'gnus-summary-beginning-of-article)
+ (define-key gnus-summary-article-map ">" 'gnus-summary-end-of-article)
+ (define-key gnus-summary-article-map "b" 'gnus-summary-beginning-of-article)
+ (define-key gnus-summary-article-map "e" 'gnus-summary-end-of-article)
+ (define-key gnus-summary-article-map "^" 'gnus-summary-refer-parent-article)
+ (define-key gnus-summary-article-map "r" 'gnus-summary-refer-parent-article)
+ (define-key gnus-summary-article-map "g" 'gnus-summary-show-article)
+ (define-key gnus-summary-article-map "s" 'gnus-summary-isearch-article)
+
+
+
+ (define-prefix-command 'gnus-summary-wash-map)
+ (define-key gnus-summary-mode-map "W" 'gnus-summary-wash-map)
+
+ (define-prefix-command 'gnus-summary-wash-hide-map)
+ (define-key gnus-summary-wash-map "W" 'gnus-summary-wash-hide-map)
+ (define-key gnus-summary-wash-hide-map "a" 'gnus-article-hide)
+ (define-key gnus-summary-wash-hide-map "h" 'gnus-article-hide-headers)
+ (define-key gnus-summary-wash-hide-map "s" 'gnus-article-hide-signature)
+ (define-key gnus-summary-wash-hide-map "c" 'gnus-article-hide-citation)
+ (define-key gnus-summary-wash-hide-map
+ "\C-c" 'gnus-article-hide-citation-maybe)
+
+ (define-prefix-command 'gnus-summary-wash-highlight-map)
+ (define-key gnus-summary-wash-map "H" 'gnus-summary-wash-highlight-map)
+ (define-key gnus-summary-wash-highlight-map "a" 'gnus-article-highlight)
+ (define-key gnus-summary-wash-highlight-map
+ "h" 'gnus-article-highlight-headers)
+ (define-key gnus-summary-wash-highlight-map
+ "c" 'gnus-article-highlight-citation)
+ (define-key gnus-summary-wash-highlight-map
+ "s" 'gnus-article-highlight-signature)
+
+ (define-prefix-command 'gnus-summary-wash-time-map)
+ (define-key gnus-summary-wash-map "T" 'gnus-summary-wash-time-map)
+ (define-key gnus-summary-wash-time-map "z" 'gnus-article-date-ut)
+ (define-key gnus-summary-wash-time-map "u" 'gnus-article-date-ut)
+ (define-key gnus-summary-wash-time-map "l" 'gnus-article-date-local)
+ (define-key gnus-summary-wash-time-map "e" 'gnus-article-date-lapsed)
+
+ (define-key gnus-summary-wash-map "b" 'gnus-article-add-buttons)
+ (define-key gnus-summary-wash-map "o" 'gnus-article-treat-overstrike)
+ (define-key gnus-summary-wash-map "w" 'gnus-article-word-wrap)
+ (define-key gnus-summary-wash-map "c" 'gnus-article-remove-cr)
+ (define-key gnus-summary-wash-map "q" 'gnus-article-de-quoted-unreadable)
+ (define-key gnus-summary-wash-map "f" 'gnus-article-display-x-face)
+ (define-key gnus-summary-wash-map "l" 'gnus-summary-stop-page-breaking)
+ (define-key gnus-summary-wash-map "r" 'gnus-summary-caesar-message)
+ (define-key gnus-summary-wash-map "t" 'gnus-summary-toggle-header)
+ (define-key gnus-summary-wash-map "m" 'gnus-summary-toggle-mime)
+
+
+ (define-prefix-command 'gnus-summary-help-map)
+ (define-key gnus-summary-mode-map "H" 'gnus-summary-help-map)
+ (define-key gnus-summary-help-map "v" 'gnus-version)
+ (define-key gnus-summary-help-map "f" 'gnus-summary-fetch-faq)
+ (define-key gnus-summary-help-map "d" 'gnus-summary-describe-group)
+ (define-key gnus-summary-help-map "h" 'gnus-summary-describe-briefly)
+ (define-key gnus-summary-help-map "i" 'gnus-info-find-node)
+
+
+ (define-prefix-command 'gnus-summary-backend-map)
+ (define-key gnus-summary-mode-map "B" 'gnus-summary-backend-map)
+ (define-key gnus-summary-backend-map "e" 'gnus-summary-expire-articles)
+ (define-key gnus-summary-backend-map "\M-\C-e"
+ 'gnus-summary-expire-articles-now)
+ (define-key gnus-summary-backend-map "\177" 'gnus-summary-delete-article)
+ (define-key gnus-summary-backend-map "m" 'gnus-summary-move-article)
+ (define-key gnus-summary-backend-map "r" 'gnus-summary-respool-article)
+ (define-key gnus-summary-backend-map "w" 'gnus-summary-edit-article)
+ (define-key gnus-summary-backend-map "c" 'gnus-summary-copy-article)
+ (define-key gnus-summary-backend-map "q" 'gnus-summary-fancy-query)
+ (define-key gnus-summary-backend-map "i" 'gnus-summary-import-article)
+
+
+ (define-prefix-command 'gnus-summary-save-map)
+ (define-key gnus-summary-mode-map "O" 'gnus-summary-save-map)
+ (define-key gnus-summary-save-map "o" 'gnus-summary-save-article)
+ (define-key gnus-summary-save-map "m" 'gnus-summary-save-article-mail)
+ (define-key gnus-summary-save-map "r" 'gnus-summary-save-article-rmail)
+ (define-key gnus-summary-save-map "f" 'gnus-summary-save-article-file)
+ (define-key gnus-summary-save-map "h" 'gnus-summary-save-article-folder)
+ (define-key gnus-summary-save-map "v" 'gnus-summary-save-article-vm)
+ (define-key gnus-summary-save-map "p" 'gnus-summary-pipe-output)
+; (define-key gnus-summary-save-map "s" 'gnus-soup-add-article)
+
+ (define-key gnus-summary-mode-map "X" 'gnus-uu-extract-map)
+
+ (define-key gnus-summary-mode-map "\M-&" 'gnus-summary-universal-argument)
+; (define-key gnus-summary-various-map "\C-s" 'gnus-summary-search-article-forward)
+; (define-key gnus-summary-various-map "\C-r" 'gnus-summary-search-article-backward)
+; (define-key gnus-summary-various-map "r" 'gnus-summary-refer-article)
+; (define-key gnus-summary-various-map "&" 'gnus-summary-execute-command)
+; (define-key gnus-summary-various-map "T" 'gnus-summary-toggle-truncation)
+; (define-key gnus-summary-various-map "e" 'gnus-summary-expand-window)
+ (define-key gnus-summary-article-map "D" 'gnus-summary-enter-digest-group)
+; (define-key gnus-summary-various-map "k" 'gnus-summary-edit-local-kill)
+; (define-key gnus-summary-various-map "K" 'gnus-summary-edit-global-kill)
+
+ (define-key gnus-summary-mode-map "V" 'gnus-summary-score-map)
+
+; (define-prefix-command 'gnus-summary-sort-map)
+; (define-key gnus-summary-various-map "s" 'gnus-summary-sort-map)
+; (define-key gnus-summary-sort-map "n" 'gnus-summary-sort-by-number)
+; (define-key gnus-summary-sort-map "a" 'gnus-summary-sort-by-author)
+; (define-key gnus-summary-sort-map "s" 'gnus-summary-sort-by-subject)
+; (define-key gnus-summary-sort-map "d" 'gnus-summary-sort-by-date)
+; (define-key gnus-summary-sort-map "i" 'gnus-summary-sort-by-score)
+
+ (define-key gnus-summary-mode-map "I" 'gnus-summary-increase-score)
+ (define-key gnus-summary-mode-map "L" 'gnus-summary-lower-score)
+ )
+
+
+\f
+
+(defun gnus-summary-mode (&optional group)
+ "Major mode for reading articles.
+
+All normal editing commands are switched off.
+\\<gnus-summary-mode-map>
+Each line in this buffer represents one article. To read an
+article, you can, for instance, type `\\[gnus-summary-next-page]'. To move forwards
+and backwards while displaying articles, type `\\[gnus-summary-next-unread-article]' and `\\[gnus-summary-prev-unread-article]',
+respectively.
+
+You can also post articles and send mail from this buffer. To
+follow up an article, type `\\[gnus-summary-followup]'. To mail a reply to the author
+of an article, type `\\[gnus-summary-reply]'.
+
+There are approx. one gazillion commands you can execute in this
+buffer; read the info pages for more information (`\\[gnus-info-find-node]').
+
+The following commands are available:
+
+\\{gnus-summary-mode-map}"
+ (interactive)
+ (if gnus-visual (gnus-summary-make-menu-bar))
+ (kill-all-local-variables)
+ (let ((locals gnus-summary-local-variables))
+ (while locals
+ (if (consp (car locals))
+ (progn
+ (make-local-variable (car (car locals)))
+ (set (car (car locals)) (eval (cdr (car locals)))))
+ (make-local-variable (car locals))
+ (set (car locals) nil))
+ (setq locals (cdr locals))))
+ (gnus-make-thread-indent-array)
+ (gnus-simplify-mode-line)
+ (setq major-mode 'gnus-summary-mode)
+ (setq mode-name "Summary")
+ (make-local-variable 'minor-mode-alist)
+ (use-local-map gnus-summary-mode-map)
+ (buffer-disable-undo (current-buffer))
+ (setq buffer-read-only t) ;Disable modification
+ (setq truncate-lines t)
+ (setq selective-display t)
+ (setq selective-display-ellipses t) ;Display `...'
+ (setq buffer-display-table gnus-summary-display-table)
+ (setq gnus-newsgroup-name group)
+ (run-hooks 'gnus-summary-mode-hook))
+
+(defun gnus-summary-make-display-table ()
+ ;; Change the display table. Odd characters have a tendency to mess
+ ;; up nicely formatted displays - we make all possible glyphs
+ ;; display only a single character.
+
+ ;; We start from the standard display table, if any.
+ (setq gnus-summary-display-table
+ (or (copy-sequence standard-display-table)
+ (make-display-table)))
+ ;; Nix out all the control chars...
+ (let ((i 32))
+ (while (>= (setq i (1- i)) 0)
+ (aset gnus-summary-display-table i [??])))
+ ;; ... but not newline and cr, of course. (cr is necessary for the
+ ;; selective display).
+ (aset gnus-summary-display-table ?\n nil)
+ (aset gnus-summary-display-table ?\r nil)
+ ;; We nix out any glyphs over 126 that are not set already.
+ (let ((i 256))
+ (while (>= (setq i (1- i)) 127)
+ ;; Only modify if the entry is nil.
+ (or (aref gnus-summary-display-table i)
+ (aset gnus-summary-display-table i [??])))))
+
+(defun gnus-summary-clear-local-variables ()
+ (let ((locals gnus-summary-local-variables))
+ (while locals
+ (if (consp (car locals))
+ (and (vectorp (car (car locals)))
+ (set (car (car locals)) nil))
+ (and (vectorp (car locals))
+ (set (car locals) nil)))
+ (setq locals (cdr locals)))))
+
+;; Some summary mode macros.
+
+;; Return a header specified by a NUMBER.
+(defun gnus-get-header-by-number (number)
+ (save-excursion
+ (set-buffer gnus-summary-buffer)
+ (or gnus-newsgroup-headers-hashtb-by-number
+ (gnus-make-headers-hashtable-by-number))
+ (gnus-gethash (int-to-string number)
+ gnus-newsgroup-headers-hashtb-by-number)))
+
+;; Fast version of the function above.
+(defmacro gnus-get-header-by-num (number)
+ (` (gnus-gethash (int-to-string (, number))
+ gnus-newsgroup-headers-hashtb-by-number)))
+
+(defmacro gnus-summary-search-forward (&optional unread subject backward)
+ "Search for article forward.
+If UNREAD is non-nil, only unread articles are selected.
+If SUBJECT is non-nil, the article which has the same subject will be
+searched for.
+If BACKWARD is non-nil, the search will be performed backwards instead."
+ (` (gnus-summary-search-subject (, backward) (, unread) (, subject))))
+
+(defmacro gnus-summary-search-backward (&optional unread subject)
+ "Search for article backward.
+If 1st optional argument UNREAD is non-nil, only unread article is selected.
+If 2nd optional argument SUBJECT is non-nil, the article which has
+the same subject will be searched for."
+ (` (gnus-summary-search-forward (, unread) (, subject) t)))
+
+(defmacro gnus-summary-article-number (&optional number-or-nil)
+ "The article number of the article on the current line.
+If there isn's an article number here, then we return the current
+article number."
+ (if number-or-nil
+ '(get-text-property (gnus-point-at-bol) 'gnus-number)
+ '(or (get-text-property (gnus-point-at-bol) 'gnus-number)
+ gnus-current-article)))
+
+(defmacro gnus-summary-thread-level ()
+ "The thread level of the article on the current line."
+ '(or (get-text-property (gnus-point-at-bol) 'gnus-level)
+ 0))
+
+(defmacro gnus-summary-article-mark ()
+ "The mark on the current line."
+ '(get-text-property (gnus-point-at-bol) 'gnus-mark))
+
+(defun gnus-summary-subject-string ()
+ "Return current subject string or nil if nothing."
+ (let ((article (gnus-summary-article-number))
+ header)
+ (and article
+ (setq header (gnus-get-header-by-num article))
+ (vectorp header)
+ (mail-header-subject header))))
+
+;; Various summary mode internalish functions.
+
+(defun gnus-mouse-pick-article (e)
+ (interactive "e")
+ (mouse-set-point e)
+ (gnus-summary-next-page nil t))
+
+(defun gnus-summary-setup-buffer (group)
+ "Initialize summary buffer."
+ (let ((buffer (concat "*Summary " group "*")))
+ (if (get-buffer buffer)
+ (progn
+ (set-buffer buffer)
+ (not gnus-newsgroup-begin))
+ ;; Fix by Sudish Joseph <joseph@cis.ohio-state.edu>
+ (setq gnus-summary-buffer (set-buffer (get-buffer-create buffer)))
+ (gnus-add-current-to-buffer-list)
+ (gnus-summary-mode group)
+ (and gnus-carpal (gnus-carpal-setup-buffer 'summary))
+ (setq gnus-newsgroup-name group)
+ t)))
+
+(defun gnus-set-global-variables ()
+ ;; Set the global equivalents of the summary buffer-local variables
+ ;; to the latest values they had. These reflect the summary buffer
+ ;; that was in action when the last article was fetched.
+ (if (eq major-mode 'gnus-summary-mode)
+ (progn
+ (setq gnus-summary-buffer (current-buffer))
+ (let ((name gnus-newsgroup-name)
+ (marked gnus-newsgroup-marked)
+ (unread gnus-newsgroup-unreads)
+ (headers gnus-current-headers)
+ (score-file gnus-current-score-file))
+ (save-excursion
+ (set-buffer gnus-group-buffer)
+ (setq gnus-newsgroup-name name)
+ (setq gnus-newsgroup-marked marked)
+ (setq gnus-newsgroup-unreads unread)
+ (setq gnus-current-headers headers)
+ (setq gnus-current-score-file score-file))))))
+
+(defun gnus-summary-insert-dummy-line (sformat subject number)
+ (if (not sformat)
+ (setq sformat gnus-summary-dummy-line-format-spec))
+ (let (b)
+ (beginning-of-line)
+ (setq b (point))
+ (insert (eval sformat))
+ (add-text-properties
+ b (1+ b)
+ (list 'gnus-number number
+ 'gnus-mark gnus-dummy-mark
+ 'gnus-level 0))))
+
+(defvar gnus-thread-indent-array nil)
+(defvar gnus-thread-indent-array-level gnus-thread-indent-level)
+(defun gnus-make-thread-indent-array ()
+ (let ((n 200))
+ (if (and gnus-thread-indent-array
+ (= gnus-thread-indent-level gnus-thread-indent-array-level))
+ nil
+ (setq gnus-thread-indent-array (make-vector 201 "")
+ gnus-thread-indent-array-level gnus-thread-indent-level)
+ (while (>= n 0)
+ (aset gnus-thread-indent-array n
+ (make-string (* n gnus-thread-indent-level) ? ))
+ (setq n (1- n))))))
+
+(defun gnus-summary-insert-line
+ (sformat header level current unread replied expirable subject-or-nil
+ &optional dummy score process)
+ (or sformat (setq sformat gnus-summary-line-format-spec))
+ (let* ((indentation (aref gnus-thread-indent-array level))
+ (lines (mail-header-lines header))
+ (score (or score gnus-summary-default-score 0))
+ (score-char
+ (if (or (null gnus-summary-default-score)
+ (<= (abs (- score gnus-summary-default-score))
+ gnus-summary-zcore-fuzz)) ?
+ (if (< score gnus-summary-default-score)
+ gnus-score-below-mark gnus-score-over-mark)))
+ (replied (cond (process gnus-process-mark)
+ (replied gnus-replied-mark)
+ (t gnus-unread-mark)))
+ (from (mail-header-from header))
+ (name (cond
+ ((string-match "(.+)" from)
+ (substring from (1+ (match-beginning 0)) (1- (match-end 0))))
+ ((string-match "<[^>]+> *$" from)
+ (let ((beg (match-beginning 0)))
+ (or (and (string-match "^\"[^\"]*\"" from)
+ (substring from (1+ (match-beginning 0))
+ (1- (match-end 0))))
+ (substring from 0 beg))))
+ (t from)))
+ (subject (mail-header-subject header))
+ (number (mail-header-number header))
+ (opening-bracket (if dummy ?\< ?\[))
+ (closing-bracket (if dummy ?\> ?\]))
+ (buffer-read-only nil)
+ (b (progn (beginning-of-line) (point))))
+ (or (numberp lines) (setq lines 0))
+ (insert (eval sformat))
+ (add-text-properties
+ b (1+ b) (list 'gnus-number number
+ 'gnus-mark (or unread gnus-unread-mark)
+ 'gnus-level level))))
+
+(defun gnus-summary-update-line (&optional dont-update)
+ ;; Update summary line after change.
+ (or (not gnus-summary-default-score)
+ gnus-summary-inhibit-highlight
+ (let ((gnus-summary-inhibit-highlight t)
+ (article (gnus-summary-article-number)))
+ (progn
+ (or dont-update
+ (if (and gnus-summary-mark-below
+ (< (gnus-summary-article-score)
+ gnus-summary-mark-below))
+ (and (not (memq article gnus-newsgroup-marked))
+ (not (memq article gnus-newsgroup-dormant))
+ (memq article gnus-newsgroup-unreads)
+ (gnus-summary-mark-article-as-read gnus-low-score-mark))
+ (and (eq (gnus-summary-article-mark) gnus-low-score-mark)
+ (gnus-summary-mark-article-as-unread gnus-unread-mark))))
+ (and gnus-visual
+ (run-hooks 'gnus-summary-update-hook))))))
+
+(defun gnus-summary-update-lines (&optional beg end)
+ ;; Mark article as read (or not) by taking into account scores.
+ (let ((beg (or beg (point-min)))
+ (end (or end (point-max))))
+ (if (or (not gnus-summary-default-score)
+ gnus-summary-inhibit-highlight)
+ ()
+ (let ((gnus-summary-inhibit-highlight t)
+ article)
+ (save-excursion
+ (set-buffer gnus-summary-buffer)
+ (goto-char beg)
+ (beginning-of-line)
+ (while (and (not (eobp)) (< (point) end))
+ (if (and gnus-summary-mark-below
+ (< (or (cdr (assq
+ (setq article (get-text-property
+ (point) 'gnus-number))
+ gnus-newsgroup-scored))
+ gnus-summary-default-score 0)
+ gnus-summary-mark-below))
+ ;; We want to possibly mark it as read...
+ (and (not (memq article gnus-newsgroup-marked))
+ (not (memq article gnus-newsgroup-dormant))
+ (memq article gnus-newsgroup-unreads)
+ (gnus-summary-mark-article-as-read gnus-low-score-mark))
+ ;; We want to possibly mark it as unread.
+ (and (eq (get-text-property (point) 'gnus-mark)
+ gnus-low-score-mark)
+ (gnus-summary-mark-article-as-unread gnus-unread-mark)))
+ ;; Do the visual highlights at the same time.
+ (and gnus-visual (run-hooks 'gnus-summary-update-hook))
+ (forward-line 1)))))))
+
+(defvar gnus-tmp-gathered nil)
+
+(defun gnus-summary-number-of-articles-in-thread (thread &optional char)
+ ;; Sum up all elements (and sub-elements) in a list.
+ (let* ((number
+ ;; Fix by Luc Van Eycken <Luc.VanEycken@esat.kuleuven.ac.be>.
+ (if (and (consp thread) (cdr thread))
+ (apply
+ '+ 1 (mapcar
+ 'gnus-summary-number-of-articles-in-thread
+ (cdr thread)))
+ 1)))
+ (if char
+ (if (> number 1) gnus-not-empty-thread-mark
+ gnus-empty-thread-mark)
+ number)))
+
+(defun gnus-summary-read-group
+ (group &optional show-all no-article kill-buffer)
+ "Start reading news in newsgroup GROUP.
+If SHOW-ALL is non-nil, already read articles are also listed.
+If NO-ARTICLE is non-nil, no article is selected initially."
+ (gnus-message 5 "Retrieving newsgroup: %s..." group)
+ (let* ((new-group (gnus-summary-setup-buffer group))
+ (quit-config (gnus-group-quit-config group))
+ (did-select (and new-group (gnus-select-newsgroup group show-all))))
+ (cond
+ ((not new-group)
+ (gnus-set-global-variables)
+ (gnus-kill-buffer kill-buffer)
+ (gnus-configure-windows 'summary 'force)
+ (gnus-set-mode-line 'summary)
+ (gnus-summary-position-cursor)
+ (message "")
+ t)
+ ((null did-select)
+ (and (eq major-mode 'gnus-summary-mode)
+ (not (equal (current-buffer) kill-buffer))
+ (progn
+ (kill-buffer (current-buffer))
+ (if (not quit-config)
+ (progn
+ (set-buffer gnus-group-buffer)
+ (gnus-group-jump-to-group group)
+ (gnus-group-next-unread-group 1))
+ (if (not (buffer-name (car quit-config)))
+ (gnus-configure-windows 'group 'force)
+ (set-buffer (car quit-config))
+ (and (eq major-mode 'gnus-summary-mode)
+ (gnus-set-global-variables))
+ (gnus-configure-windows (cdr quit-config))))))
+ (message "Can't select group")
+ nil)
+ ((eq did-select 'quit)
+ (and (eq major-mode 'gnus-summary-mode)
+ (not (equal (current-buffer) kill-buffer))
+ (kill-buffer (current-buffer)))
+ (gnus-kill-buffer kill-buffer)
+ (if (not quit-config)
+ (progn
+ (set-buffer gnus-group-buffer)
+ (gnus-group-jump-to-group group)
+ (gnus-group-next-unread-group 1)
+ (gnus-configure-windows 'group 'force))
+ (if (not (buffer-name (car quit-config)))
+ (gnus-configure-windows 'group 'force)
+ (set-buffer (car quit-config))
+ (and (eq major-mode 'gnus-summary-mode)
+ (gnus-set-global-variables))
+ (gnus-configure-windows (cdr quit-config))))
+ (signal 'quit nil))
+ (t
+ (gnus-set-global-variables)
+ ;; Save the active value in effect when the group was entered.
+ (setq gnus-newsgroup-active
+ (gnus-copy-sequence
+ (gnus-gethash gnus-newsgroup-name gnus-active-hashtb)))
+ ;; You can change the subjects in this hook.
+ (run-hooks 'gnus-select-group-hook)
+ ;; Do score processing.
+ (and gnus-use-scoring (gnus-possibly-score-headers))
+ (gnus-update-format-specifications)
+ ;; Generate the summary buffer.
+ (gnus-summary-prepare)
+ (if (zerop (buffer-size))
+ (cond (gnus-newsgroup-dormant
+ (gnus-summary-show-all-dormant))
+ ((and gnus-newsgroup-scored show-all)
+ (gnus-summary-show-all-expunged))))
+ ;; Function `gnus-apply-kill-file' must be called in this hook.
+ (run-hooks 'gnus-apply-kill-hook)
+ (if (zerop (buffer-size))
+ (progn
+ ;; This newsgroup is empty.
+ (gnus-summary-catchup-and-exit nil t) ;Without confirmations.
+ (gnus-message 6 "No unread news")
+ (gnus-kill-buffer kill-buffer)
+ nil)
+ ;;(save-excursion
+ ;; (if kill-buffer
+ ;; (let ((gnus-summary-buffer kill-buffer))
+ ;; (gnus-configure-windows 'group))))
+ ;; Hide conversation thread subtrees. We cannot do this in
+ ;; gnus-summary-prepare-hook since kill processing may not
+ ;; work with hidden articles.
+ (and gnus-show-threads
+ gnus-thread-hide-subtree
+ (gnus-summary-hide-all-threads))
+ ;; Show first unread article if requested.
+ (goto-char (point-min))
+ (if (and (not no-article)
+ gnus-auto-select-first
+ (gnus-summary-first-unread-article))
+ ()
+ (gnus-configure-windows 'summary 'force))
+ (gnus-set-mode-line 'summary)
+ (gnus-summary-position-cursor)
+ ;; If in async mode, we send some info to the backend.
+ (and gnus-newsgroup-async
+ (setq gnus-newsgroup-threads (nreverse gnus-newsgroup-threads))
+ (gnus-request-asynchronous
+ gnus-newsgroup-name
+ (if (and gnus-asynchronous-article-function
+ (fboundp gnus-asynchronous-article-function))
+ (funcall gnus-asynchronous-article-function
+ gnus-newsgroup-threads)
+ gnus-newsgroup-threads)))
+ (gnus-kill-buffer kill-buffer)
+ (if (not (get-buffer-window gnus-group-buffer))
+ ()
+ ;; gotta use windows, because recenter does weird stuff if
+ ;; the current buffer ain't the displayed window.
+ (let ((owin (selected-window)))
+ (select-window (get-buffer-window gnus-group-buffer))
+ (and (gnus-group-goto-group group)
+ (recenter))
+ (select-window owin))))
+ t))))
+
+(defun gnus-summary-prepare ()
+ ;; Generate the summary buffer.
+ (let ((buffer-read-only nil))
+ (erase-buffer)
+ (gnus-summary-prepare-threads
+ (if gnus-show-threads
+ (gnus-gather-threads
+ (gnus-sort-threads
+ (if (and gnus-summary-expunge-below
+ (not gnus-fetch-old-headers))
+ (gnus-make-threads-and-expunge)
+ (gnus-make-threads))))
+ gnus-newsgroup-headers)
+ 'cull)
+ (gnus-summary-update-lines)
+ ;; Create the header hashtb.
+ (gnus-make-headers-hashtable-by-number)
+ ;; Call hooks for modifying summary buffer.
+ ;; Suggested by sven@tde.LTH.Se (Sven Mattisson).
+ (goto-char (point-min))
+ (run-hooks 'gnus-summary-prepare-hook)))
+
+(defun gnus-gather-threads (threads)
+ "Gather threads that have lost their roots."
+ (if (not gnus-summary-make-false-root)
+ threads
+ (let ((hashtb (gnus-make-hashtable 1023))
+ (prev threads)
+ (result threads)
+ subject hthread whole-subject)
+ (while threads
+ (setq whole-subject
+ (setq subject (mail-header-subject (car (car threads)))))
+ (if gnus-summary-gather-subject-limit
+ (or (and (numberp gnus-summary-gather-subject-limit)
+ (> (length subject) gnus-summary-gather-subject-limit)
+ (setq subject
+ (substring subject 0
+ gnus-summary-gather-subject-limit)))
+ (and (eq 'fuzzy gnus-summary-gather-subject-limit)
+ (setq subject (gnus-simplify-subject-fuzzy subject))))
+ (setq subject (gnus-simplify-subject-re subject)))
+ (if (setq hthread
+ (gnus-gethash subject hashtb))
+ (progn
+ (or (stringp (car (car hthread)))
+ (setcar hthread (list whole-subject (car hthread))))
+ (setcdr (car hthread) (nconc (cdr (car hthread))
+ (list (car threads))))
+ (setcdr prev (cdr threads))
+ (setq threads prev))
+ (gnus-sethash subject threads hashtb))
+ (setq prev threads)
+ (setq threads (cdr threads)))
+ result)))
+
+(defun gnus-make-threads ()
+ ;; This function takes the dependencies already made by
+ ;; `gnus-get-newsgroup-headers' and builds the trees. First we go
+ ;; through the dependencies in the hash table and finds all the
+ ;; roots. Roots do not refer back to any valid articles.
+ (gnus-message 6 "Threading...")
+ (let (roots new-roots)
+ (and gnus-fetch-old-headers
+ (eq gnus-headers-retrieved-by 'nov)
+ (gnus-build-old-threads))
+ (mapatoms
+ (lambda (refs)
+ (if (not (car (symbol-value refs)))
+ (setq roots (append (cdr (symbol-value refs)) roots))
+ ;; Ok, these refer back to valid articles, but if
+ ;; `gnus-thread-ignore-subject' is nil, we have to check that
+ ;; the root has the same subject as its children. The children
+ ;; that do not are made into roots and removed from the list
+ ;; of children.
+ (or gnus-thread-ignore-subject
+ (let* ((prev (symbol-value refs))
+ (subject (gnus-simplify-subject-re
+ (mail-header-subject (car prev))))
+ (headers (cdr prev)))
+ (while headers
+ (if (not (string= subject
+ (gnus-simplify-subject-re
+ (mail-header-subject (car headers)))))
+ (progn
+ (setq new-roots (cons (car headers) new-roots))
+ (setcdr prev (cdr headers)))
+ (setq prev headers))
+ (setq headers (cdr headers)))))))
+ gnus-newsgroup-dependencies)
+
+ ;; We enter the new roots into the dependencies structure to
+ ;; ensure that any possible later thread-regeneration will be
+ ;; possible.
+ (let ((r new-roots))
+ (while r
+ (gnus-sethash (concat (mail-header-id (car r)) ".boo")
+ (list nil (car r)) gnus-newsgroup-dependencies)
+ (setq r (cdr r))))
+
+ (setq roots (nconc new-roots roots))
+
+ (prog1
+ (mapcar 'gnus-trim-thread
+ (apply 'append
+ (mapcar 'gnus-cut-thread
+ (mapcar 'gnus-make-sub-thread roots))))
+ (gnus-message 6 "Threading...done"))))
+
+
+(defun gnus-make-threads-and-expunge ()
+ ;; This function takes the dependencies already made by
+ ;; `gnus-get-newsgroup-headers' and builds the trees. First we go
+ ;; through the dependencies in the hash table and finds all the
+ ;; roots. Roots do not refer back to any valid articles.
+ (gnus-message 6 "Threading...")
+ (let ((default (or gnus-summary-default-score 0))
+ (below gnus-summary-expunge-below)
+ roots article new-roots)
+ (and gnus-fetch-old-headers
+ (eq gnus-headers-retrieved-by 'nov)
+ (gnus-build-old-threads))
+ (mapatoms
+ (lambda (refs)
+ (if (not (car (symbol-value refs)))
+ ;; These articles do not refer back to any other articles -
+ ;; they are roots.
+ (let ((headers (cdr (symbol-value refs))))
+ ;; We weed out the low-scored articles.
+ (while headers
+ (if (not (< (or (cdr (assq (mail-header-number (car headers))
+ gnus-newsgroup-scored)) default)
+ below))
+ ;; It is over.
+ (setq roots (cons (car headers) roots))
+ ;; It is below, so we mark it as read.
+ (setq gnus-newsgroup-unreads
+ (delq (mail-header-number (car headers))
+ gnus-newsgroup-unreads))
+ (setq gnus-newsgroup-reads
+ (cons (cons (mail-header-number (car headers))
+ gnus-low-score-mark)
+ gnus-newsgroup-reads)))
+ (setq headers (cdr headers))))
+ ;; Ok, these refer back to valid articles, but if
+ ;; `gnus-thread-ignore-subject' is nil, we have to check that
+ ;; the root has the same subject as its children. The children
+ ;; that do not are made into roots and removed from the list
+ ;; of children.
+ (or gnus-thread-ignore-subject
+ (let* ((prev (symbol-value refs))
+ (subject (gnus-simplify-subject-re
+ (mail-header-subject (car prev))))
+ (headers (cdr prev)))
+ (while headers
+ (if (not (string= subject
+ (gnus-simplify-subject-re
+ (mail-header-subject (car headers)))))
+ (progn
+ (if (not (< (or (cdr (assq (mail-header-number
+ (car headers))
+ gnus-newsgroup-scored))
+ default) below))
+ (setq new-roots (cons (car headers) new-roots))
+ (setq gnus-newsgroup-unreads
+ (delq (mail-header-number (car headers))
+ gnus-newsgroup-unreads))
+ (setq gnus-newsgroup-reads
+ (cons (cons (mail-header-number (car headers))
+ gnus-low-score-mark)
+ gnus-newsgroup-reads)))
+ (setcdr prev (cdr headers)))
+ (setq prev headers))
+ (setq headers (cdr headers)))))
+ ;; If this article is expunged, some of the children might be
+ ;; roots.
+ (if (< (or (cdr (assq (mail-header-number (car (symbol-value refs)))
+ gnus-newsgroup-scored)) default)
+ below)
+ (let* ((prev (symbol-value refs))
+ (headers (cdr prev)))
+ (while headers
+ (setq article (mail-header-number (car headers)))
+ (if (not (< (or (cdr (assq article gnus-newsgroup-scored))
+ default) below))
+ (progn (setq new-roots (cons (car headers) new-roots))
+ (setq prev headers))
+ (setq gnus-newsgroup-unreads
+ (delq article gnus-newsgroup-unreads))
+ (setq gnus-newsgroup-reads
+ (cons (cons article gnus-low-score-mark)
+ gnus-newsgroup-reads))
+ (setcdr prev (cdr headers)))
+ (setq headers (cdr headers))))
+ ;; It was not expunged, but we look at expunged children.
+ (let* ((prev (symbol-value refs))
+ (headers (cdr prev))
+ article)
+ (while headers
+ (setq article (mail-header-number (car headers)))
+ (if (not (< (or (cdr (assq article gnus-newsgroup-scored))
+ default) below))
+ (setq prev headers)
+ (setq gnus-newsgroup-unreads
+ (delq article gnus-newsgroup-unreads))
+ (setq gnus-newsgroup-reads
+ (cons (cons article gnus-low-score-mark)
+ gnus-newsgroup-reads))
+ (setcdr prev (cdr headers)))
+ (setq headers (cdr headers)))))))
+ gnus-newsgroup-dependencies)
+
+ ;; We enter the new roots into the dependencies structure to
+ ;; ensure that any possible later thread-regeneration will be
+ ;; possible.
+ (let ((r new-roots))
+ (while r
+ (gnus-sethash (concat (mail-header-id (car r)) ".boo")
+ (list nil (car r)) gnus-newsgroup-dependencies)
+ (setq r (cdr r))))
+
+ (setq roots (nconc new-roots roots))
+
+ (prog1
+ (mapcar 'gnus-trim-thread
+ (apply 'append
+ (mapcar 'gnus-cut-thread
+ (mapcar 'gnus-make-sub-thread roots))))
+ (gnus-message 6 "Threading...done"))))
+
+
+(defun gnus-cut-thread (thread)
+ ;; Remove leaf dormant or ancient articles from THREAD.
+ (let ((head (car thread))
+ (tail (apply 'append (mapcar 'gnus-cut-thread (cdr thread)))))
+ (if (and (null tail)
+ (let ((number (mail-header-number head)))
+ (or (memq number gnus-newsgroup-ancient)
+ (memq number gnus-newsgroup-dormant)
+ (and gnus-summary-expunge-below
+ (eq gnus-fetch-old-headers 'some)
+ (< (or (cdr (assq number gnus-newsgroup-scored))
+ gnus-summary-default-score 0)
+ gnus-summary-expunge-below)
+ (progn
+ (setq gnus-newsgroup-unreads
+ (delq number gnus-newsgroup-unreads))
+ (setq gnus-newsgroup-reads
+ (cons (cons number gnus-low-score-mark)
+ gnus-newsgroup-reads))
+ t)))))
+ nil
+ (list (cons head tail)))))
+
+(defun gnus-trim-thread (thread)
+ ;; Remove root ancient articles with only one child from THREAD.
+ (if (and (eq gnus-fetch-old-headers 'some)
+ (memq (mail-header-number (car thread)) gnus-newsgroup-ancient)
+ (= (length thread) 2))
+ (gnus-trim-thread (nth 1 thread))
+ thread))
+
+(defun gnus-make-sub-thread (root)
+ ;; This function makes a sub-tree for a node in the tree.
+ (let ((children (reverse (cdr (gnus-gethash (downcase (mail-header-id root))
+ gnus-newsgroup-dependencies)))))
+ (cons root (mapcar 'gnus-make-sub-thread children))))
+
+(defun gnus-build-old-threads ()
+ ;; Look at all the articles that refer back to old articles, and
+ ;; fetch the headers for the articles that aren't there. This will
+ ;; build complete threads - if the roots haven't been expired by the
+ ;; server, that is.
+ (let (id heads)
+ (mapatoms
+ (lambda (refs)
+ (if (not (car (symbol-value refs)))
+ (progn
+ (setq heads (cdr (symbol-value refs)))
+ (while heads
+ (if (not (memq (mail-header-number (car heads))
+ gnus-newsgroup-dormant))
+ (progn
+ (setq id (symbol-name refs))
+ (while (and (setq id (gnus-build-get-header id))
+ (not (car (gnus-gethash
+ id gnus-newsgroup-dependencies)))))
+ (setq heads nil))
+ (setq heads (cdr heads)))))))
+ gnus-newsgroup-dependencies)))
+
+(defun gnus-build-get-header (id)
+ ;; Look through the buffer of NOV lines and find the header to
+ ;; ID. Enter this line into the dependencies hash table, and return
+ ;; the id of the parent article (if any).
+ (let ((deps gnus-newsgroup-dependencies)
+ found header)
+ (prog1
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ (goto-char (point-min))
+ (while (and (not found) (search-forward id nil t))
+ (beginning-of-line)
+ (setq found (looking-at
+ (format "^[^\t]*\t[^\t]*\t[^\t]*\t[^\t]*\t%s"
+ (regexp-quote id))))
+ (or found (beginning-of-line 2)))
+ (if found
+ (let (ref)
+ (beginning-of-line)
+ (and
+ (setq header (gnus-nov-parse-line
+ (read (current-buffer)) deps))
+ (setq ref (mail-header-references header))
+ (string-match "\\(<[^>]+>\\) *$" ref)
+ (substring ref (match-beginning 1) (match-end 1))))))
+ (and header
+ (setq gnus-newsgroup-headers (cons header gnus-newsgroup-headers)
+ gnus-newsgroup-ancient (cons (mail-header-number header)
+ gnus-newsgroup-ancient))))))
+
+;; Re-build the thread containing ID.
+(defun gnus-rebuild-thread (id)
+ (let ((dep gnus-newsgroup-dependencies)
+ (buffer-read-only nil)
+ parent headers refs thread art)
+ (while (and id (setq headers
+ (car (setq art (gnus-gethash (downcase id) dep)))))
+ (setq parent art)
+ (setq id (and (setq refs (mail-header-references headers))
+ (string-match "\\(<[^>]+>\\) *$" refs)
+ (substring refs (match-beginning 1) (match-end 1)))))
+ (setq thread (gnus-make-sub-thread (car parent)))
+ (gnus-rebuild-remove-articles thread)
+ (let ((beg (point)))
+ (gnus-summary-prepare-threads (list thread))
+ (gnus-summary-update-lines beg (point)))))
+
+;; Delete all lines in the summary buffer that correspond to articles
+;; in this thread.
+(defun gnus-rebuild-remove-articles (thread)
+ (and (gnus-summary-goto-subject (mail-header-number (car thread)))
+ (gnus-delete-line))
+ (mapcar (lambda (th) (gnus-rebuild-remove-articles th)) (cdr thread)))
+
+(defun gnus-sort-threads (threads)
+ ;; Sort threads as specified in `gnus-thread-sort-functions'.
+ (let ((fun gnus-thread-sort-functions))
+ (while fun
+ (gnus-message 6 "Sorting with %S..." fun)
+ (setq threads (sort threads (car fun))
+ fun (cdr fun))))
+ (if gnus-thread-sort-functions
+ (gnus-message 6 "Sorting...done"))
+ threads)
+
+;; Written by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
+(defmacro gnus-thread-header (thread)
+ ;; Return header of first article in THREAD.
+ ;; Note that THREAD must never, evr be anything else than a variable -
+ ;; using some other form will lead to serious barfage.
+ (or (symbolp thread) (signal 'wrong-type-argument '(symbolp thread)))
+ ;; (8% speedup to gnus-summary-prepare, just for fun :-)
+ (list 'byte-code "\10\211:\203\17\0\211@;\203\16\0A@@\207" ;
+ (vector thread) 2))
+
+(defun gnus-thread-sort-by-number (h1 h2)
+ "Sort threads by root article number."
+ (< (mail-header-number (gnus-thread-header h1))
+ (mail-header-number (gnus-thread-header h2))))
+
+(defun gnus-thread-sort-by-author (h1 h2)
+ "Sort threads by root author."
+ (string-lessp
+ (let ((extract (funcall
+ gnus-extract-address-components
+ (mail-header-from (gnus-thread-header h1)))))
+ (or (car extract) (cdr extract)))
+ (let ((extract (funcall
+ gnus-extract-address-components
+ (mail-header-from (gnus-thread-header h2)))))
+ (or (car extract) (cdr extract)))))
+
+(defun gnus-thread-sort-by-subject (h1 h2)
+ "Sort threads by root subject."
+ (string-lessp
+ (downcase (gnus-simplify-subject-re
+ (mail-header-subject (gnus-thread-header h1))))
+ (downcase (gnus-simplify-subject-re
+ (mail-header-subject (gnus-thread-header h2))))))
+
+(defun gnus-thread-sort-by-date (h1 h2)
+ "Sort threads by root article date."
+ (string-lessp
+ (gnus-sortable-date (mail-header-date (gnus-thread-header h1)))
+ (gnus-sortable-date (mail-header-date (gnus-thread-header h2)))))
+
+(defun gnus-thread-sort-by-score (h1 h2)
+ "Sort threads by root article score.
+Unscored articles will be counted as having a score of zero."
+ (> (or (cdr (assq (mail-header-number (gnus-thread-header h1))
+ gnus-newsgroup-scored))
+ gnus-summary-default-score 0)
+ (or (cdr (assq (mail-header-number (gnus-thread-header h2))
+ gnus-newsgroup-scored))
+ gnus-summary-default-score 0)))
+
+(defun gnus-thread-sort-by-total-score (h1 h2)
+ "Sort threads by the sum of all scores in the thread.
+Unscored articles will be counted as having a score of zero."
+ (> (gnus-thread-total-score h1) (gnus-thread-total-score h2)))
+
+(defun gnus-thread-total-score (thread)
+ ;; This function find the total score of THREAD.
+ (if (consp thread)
+ (if (stringp (car thread))
+ (apply gnus-thread-score-function 0
+ (mapcar 'gnus-thread-total-score-1 (cdr thread)))
+ (gnus-thread-total-score-1 thread))
+ (gnus-thread-total-score-1 (list thread))))
+
+(defun gnus-thread-total-score-1 (root)
+ ;; This function find the total score of the thread below ROOT.
+ (setq root (car root))
+ (apply gnus-thread-score-function
+ (or (cdr (assq (mail-header-number root) gnus-newsgroup-scored))
+ gnus-summary-default-score 0)
+ (mapcar 'gnus-thread-total-score
+ (cdr (gnus-gethash (downcase (mail-header-id root))
+ gnus-newsgroup-dependencies)))))
+
+;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
+(defvar gnus-tmp-prev-subject "")
+
+(defun gnus-summary-prepare-threads (threads &optional cull)
+ "Prepare summary buffer from THREADS and indentation LEVEL.
+THREADS is either a list of `(PARENT [(CHILD1 [(GRANDCHILD ...]...) ...])'
+or a straight list of headers."
+ (gnus-message 5 "Generating summary...")
+ (let ((level 0)
+ thread header number subject stack state gnus-tmp-gathered)
+ (if (vectorp (car threads))
+ ;; If this is a straight (sic) list of headers, then a
+ ;; threaded summary display isn't required, so we just create
+ ;; an unthreaded one.
+ (gnus-summary-prepare-unthreaded threads cull)
+
+ ;; Do the threaded display.
+
+ (while (or threads stack)
+
+ (if threads
+ ;; If there are some threads, we do them before the
+ ;; threads on the stack.
+ (setq thread threads
+ header (car (car thread)))
+ ;; There were no current threads, so we pop something off
+ ;; the stack.
+ (setq state (car stack)
+ level (car state)
+ thread (cdr state)
+ stack (cdr stack)
+ header (car (car thread))))
+
+ (if (stringp header)
+ (progn
+ ;; The header is a dummy root.
+ (cond
+ ((eq gnus-summary-make-false-root 'adopt)
+ ;; We let the first article adopt the rest.
+ (let ((th (car (cdr (car thread)))))
+ (while (cdr th)
+ (setq th (cdr th)))
+ (setcdr th (cdr (cdr (car thread))))
+ (setq gnus-tmp-gathered
+ (nconc (mapcar
+ (lambda (h) (mail-header-number (car h)))
+ (cdr (cdr (car thread))))
+ gnus-tmp-gathered))
+ (setcdr (cdr (car thread)) nil))
+ (setq level -1))
+ ((eq gnus-summary-make-false-root 'empty)
+ ;; We print adopted articles with empty subject fields.
+ (setq gnus-tmp-gathered
+ (nconc (mapcar
+ (lambda (h) (mail-header-number (car h)))
+ (cdr (cdr (car thread))))
+ gnus-tmp-gathered))
+ (setq level -1))
+ ((eq gnus-summary-make-false-root 'dummy)
+ ;; We output a dummy root.
+ (gnus-summary-insert-dummy-line
+ nil header (mail-header-number
+ (car (car (cdr (car thread)))))))
+ (t
+ ;; We do not make a root for the gathered
+ ;; sub-threads at all.
+ (setq level -1))))
+
+ (setq number (mail-header-number header)
+ subject (mail-header-subject header))
+
+ ;; Do the async thing.
+ (and gnus-newsgroup-async
+ (setq gnus-newsgroup-threads
+ (cons (cons number (mail-header-lines header))
+ gnus-newsgroup-threads)))
+
+ ;; We may have to root out some bad articles...
+ (and cull
+ (= level 0)
+ (cond ((and (memq (setq number (mail-header-number header))
+ gnus-newsgroup-dormant)
+ (null thread))
+ (setq header nil))
+ ((and gnus-summary-expunge-below
+ (< (or (cdr (assq number gnus-newsgroup-scored))
+ gnus-summary-default-score 0)
+ gnus-summary-expunge-below))
+ (setq header nil)
+ (setq gnus-newsgroup-unreads
+ (delq number gnus-newsgroup-unreads))
+ (setq gnus-newsgroup-reads
+ (cons (cons number gnus-low-score-mark)
+ gnus-newsgroup-reads)))))
+
+ (and
+ header
+ (progn
+ (inline
+ (gnus-summary-insert-line
+ nil header level nil
+ (cond
+ ((memq number gnus-newsgroup-marked) gnus-ticked-mark)
+ ((memq number gnus-newsgroup-dormant) gnus-dormant-mark)
+ ((memq number gnus-newsgroup-unreads) gnus-unread-mark)
+ ((memq number gnus-newsgroup-expirable) gnus-expirable-mark)
+ (t (or (cdr (assq number gnus-newsgroup-reads))
+ gnus-ancient-mark)))
+ (memq number gnus-newsgroup-replied)
+ (memq number gnus-newsgroup-expirable)
+ (cond
+ ((and gnus-thread-ignore-subject
+ (not (string=
+ (gnus-simplify-subject-re gnus-tmp-prev-subject)
+ (gnus-simplify-subject-re subject))))
+ subject)
+ ((zerop level)
+ (if (and (eq gnus-summary-make-false-root 'empty)
+ (memq number gnus-tmp-gathered))
+ gnus-summary-same-subject
+ subject))
+ (t gnus-summary-same-subject))
+ (and (eq gnus-summary-make-false-root 'adopt)
+ (memq number gnus-tmp-gathered))
+ (cdr (assq number gnus-newsgroup-scored))
+ (memq number gnus-newsgroup-processable))
+
+ (setq gnus-tmp-prev-subject subject)))))
+
+ (if (nth 1 thread)
+ (setq stack (cons (cons (max 0 level) (nthcdr 1 thread)) stack)))
+ (setq level (1+ level))
+ (setq threads (cdr (car thread))))))
+ (gnus-message 5 "Generating summary...done"))
+
+
+
+(defun gnus-summary-prepare-unthreaded (headers &optional cull)
+ (let (header number)
+
+ ;; Do the async thing, if that is required.
+ (if gnus-newsgroup-async
+ (setq gnus-newsgroup-threads
+ (mapcar (lambda (h)
+ (cons (mail-header-number h) (mail-header-lines h)))
+ headers)))
+
+ (while headers
+ (setq header (car headers)
+ headers (cdr headers)
+ number (mail-header-number header))
+
+ ;; We may have to root out some bad articles...
+ (cond
+ ((and cull
+ (memq (setq number (mail-header-number header))
+ gnus-newsgroup-dormant)))
+ ((and cull gnus-summary-expunge-below
+ (< (or (cdr (assq number gnus-newsgroup-scored))
+ gnus-summary-default-score 0)
+ gnus-summary-expunge-below))
+ (setq gnus-newsgroup-unreads
+ (delq number gnus-newsgroup-unreads))
+ (setq gnus-newsgroup-reads
+ (cons (cons number gnus-low-score-mark)
+ gnus-newsgroup-reads)))
+ (t
+ (gnus-summary-insert-line
+ nil header 0 nil
+ (cond ((memq number gnus-newsgroup-marked) gnus-ticked-mark)
+ ((memq number gnus-newsgroup-dormant) gnus-dormant-mark)
+ ((memq number gnus-newsgroup-unreads) gnus-unread-mark)
+ ((memq number gnus-newsgroup-expirable) gnus-expirable-mark)
+ (t (or (cdr (assq number gnus-newsgroup-reads))
+ gnus-ancient-mark)))
+ (memq number gnus-newsgroup-replied)
+ (memq number gnus-newsgroup-expirable)
+ (mail-header-subject header) nil
+ (cdr (assq number gnus-newsgroup-scored))
+ (memq number gnus-newsgroup-processable)))))))
+
+(defun gnus-select-newsgroup (group &optional read-all)
+ "Select newsgroup GROUP.
+If READ-ALL is non-nil, all articles in the group are selected."
+ (let* ((entry (gnus-gethash group gnus-newsrc-hashtb))
+ (info (nth 2 entry))
+ articles)
+
+ (or (gnus-check-server
+ (setq gnus-current-select-method (gnus-find-method-for-group group)))
+ (error "Couldn't open server"))
+
+ (or (and entry (not (eq (car entry) t))) ; Either it's active...
+ (gnus-activate-group group) ; Or we can activate it...
+ (progn ; Or we bug out.
+ (kill-buffer (current-buffer))
+ (error "Couldn't request group %s: %s"
+ group (gnus-status-message group))))
+
+ (setq gnus-newsgroup-name group)
+ (setq gnus-newsgroup-unselected nil)
+ (setq gnus-newsgroup-unreads (gnus-list-of-unread-articles group))
+
+ (and gnus-asynchronous
+ (gnus-check-backend-function
+ 'request-asynchronous gnus-newsgroup-name)
+ (setq gnus-newsgroup-async
+ (gnus-request-asynchronous gnus-newsgroup-name)))
+
+ (setq articles (gnus-articles-to-read group read-all))
+
+ (cond
+ ((null articles)
+ (gnus-message 3 "Couldn't select newsgroup")
+ 'quit)
+ ((eq articles 0) nil)
+ (t
+ ;; Init the dependencies hash table.
+ (setq gnus-newsgroup-dependencies
+ (gnus-make-hashtable (length articles)))
+ ;; Retrieve the headers and read them in.
+ (gnus-message 5 "Fetching headers...")
+ (setq gnus-newsgroup-headers
+ (if (eq 'nov (setq gnus-headers-retrieved-by
+ ;; This is a naughty hack. To get the
+ ;; retrieval of old headers to work, we
+ ;; set `nntp-nov-gap' to nil (locally),
+ ;; and then just retrieve the headers.
+ ;; Mucho magic.
+ (if gnus-fetch-old-headers
+ (let (nntp-nov-gap)
+ (gnus-retrieve-headers
+ (if (not (eq 1 (car articles)))
+ (cons 1 articles)
+ articles)
+ gnus-newsgroup-name))
+ (gnus-retrieve-headers
+ articles gnus-newsgroup-name))))
+ (progn
+ (gnus-get-newsgroup-headers-xover articles))
+ ;; If we were to fetch old headers, but the backend didn't
+ ;; support XOVER, then it is possible we fetched one article
+ ;; that we shouldn't have. If that's the case, we remove it.
+ (if (or (not gnus-fetch-old-headers)
+ (eq 1 (car articles)))
+ ()
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ (goto-char (point-min))
+ (and
+ (looking-at "[0-9]+[ \t]+1[ \t]") ; This is not a NOV line.
+ (delete-region ; So we delete this head.
+ (point)
+ (search-forward "\n.\n" nil t)))))
+ (gnus-get-newsgroup-headers)))
+ (gnus-message 5 "Fetching headers...done")
+ ;; Remove canceled articles from the list of unread articles.
+ (setq gnus-newsgroup-unreads
+ (gnus-set-sorted-intersection
+ gnus-newsgroup-unreads
+ (mapcar (lambda (headers) (mail-header-number headers))
+ gnus-newsgroup-headers)))
+ ;; Adjust and set lists of article marks.
+ (and info
+ (let (marked)
+ (gnus-adjust-marked-articles info)
+ (setq gnus-newsgroup-marked
+ (copy-sequence
+ (cdr (assq 'tick (setq marked (nth 3 info))))))
+ (setq gnus-newsgroup-replied
+ (copy-sequence (cdr (assq 'reply marked))))
+ (setq gnus-newsgroup-expirable
+ (copy-sequence (cdr (assq 'expire marked))))
+ (setq gnus-newsgroup-killed
+ (copy-sequence (cdr (assq 'killed marked))))
+ (setq gnus-newsgroup-bookmarks
+ (copy-sequence (cdr (assq 'bookmark marked))))
+ (setq gnus-newsgroup-dormant
+ (copy-sequence (cdr (assq 'dormant marked))))
+ (setq gnus-newsgroup-scored
+ (copy-sequence (cdr (assq 'score marked))))
+ (setq gnus-newsgroup-processable nil)))
+ ;; Check whether auto-expire is to be done in this group.
+ (setq gnus-newsgroup-auto-expire
+ (or (and (stringp gnus-auto-expirable-newsgroups)
+ (string-match gnus-auto-expirable-newsgroups group))
+ (memq 'auto-expire (nth 5 info))))
+ ;; First and last article in this newsgroup.
+ (and gnus-newsgroup-headers
+ (setq gnus-newsgroup-begin
+ (mail-header-number (car gnus-newsgroup-headers)))
+ (setq gnus-newsgroup-end
+ (mail-header-number
+ (gnus-last-element gnus-newsgroup-headers))))
+ (setq gnus-reffed-article-number -1)
+ ;; GROUP is successfully selected.
+ (or gnus-newsgroup-headers t)))))
+
+(defun gnus-articles-to-read (group read-all)
+ ;; Find out what articles the user wants to read.
+ (let* ((articles
+ ;; Select all articles if `read-all' is non-nil, or if all the
+ ;; unread articles are dormant articles.
+ (if (or read-all
+ (= (length gnus-newsgroup-unreads)
+ (length gnus-newsgroup-dormant)))
+ (gnus-uncompress-range
+ (gnus-gethash group gnus-active-hashtb))
+ gnus-newsgroup-unreads))
+ (scored-list (gnus-killed-articles gnus-newsgroup-killed articles))
+ (scored (length scored-list))
+ (number (length articles))
+ (marked (+ (length gnus-newsgroup-marked)
+ (length gnus-newsgroup-dormant)))
+ (select
+ (cond
+ ((numberp read-all)
+ read-all)
+ (t
+ (condition-case ()
+ (cond ((and (or (<= scored marked)
+ (= scored number))
+ (numberp gnus-large-newsgroup)
+ (> number gnus-large-newsgroup))
+ (let ((input
+ (read-string
+ (format
+ "How many articles from %s (default %d): "
+ gnus-newsgroup-name number))))
+ (if (string-match "^[ \t]*$" input)
+ number input)))
+ ((and (> scored marked) (< scored number))
+ (let ((input
+ (read-string
+ (format
+ "%s %s (%d scored, %d total): "
+ "How many articles from"
+ group scored number))))
+ (if (string-match "^[ \t]*$" input)
+ number input)))
+ (t number))
+ (quit nil))))))
+ (setq select (if (stringp select) (string-to-number select) select))
+ (if (or (null select) (zerop select))
+ select
+ (if (and (not (zerop scored)) (<= (abs select) scored))
+ (progn
+ (setq articles (sort scored-list '<))
+ (setq number (length articles)))
+ (setq articles (copy-sequence articles)))
+
+ (if (< (abs select) number)
+ (if (< select 0)
+ ;; Select the N oldest articles.
+ (setcdr (nthcdr (1- (abs select)) articles) nil)
+ ;; Select the N most recent articles.
+ (setq articles (nthcdr (- number select) articles))))
+ (setq gnus-newsgroup-unselected
+ (gnus-sorted-intersection
+ gnus-newsgroup-unreads
+ (gnus-sorted-complement gnus-newsgroup-unreads articles)))
+ articles)))
+
+(defun gnus-killed-articles (killed articles)
+ (let (out)
+ (while articles
+ (if (inline (gnus-member-of-range (car articles) killed))
+ (setq out (cons (car articles) out)))
+ (setq articles (cdr articles)))
+ out))
+
+(defun gnus-adjust-marked-articles (info &optional active)
+ "Remove all marked articles that are no longer legal."
+ (let ((marked-lists (nth 3 info))
+ (active (or active (gnus-gethash (car info) gnus-active-hashtb)))
+ m prev)
+ ;; There are many types of marked articles.
+ (while marked-lists
+ (setq m (cdr (setq prev (car marked-lists))))
+ (cond ((or (eq 'tick (car prev)) (eq 'dormant (car prev)))
+ ;; Make sure that all ticked articles are a subset of the
+ ;; unread/unselected articles.
+ ;;(while m
+ ;; (if (or (memq (car m) gnus-newsgroup-unreads)
+ ;; (memq (car m) gnus-newsgroup-unselected))
+ ;; (setq prev m)
+ ;; (setcdr prev (cdr m)))
+ ;; (setq m (cdr m)))
+ )
+ ((eq 'score (car prev))
+ ;; Scored articles should be a subset of
+ ;; unread/unselected articles.
+ (while m
+ (if (or (memq (car (car m)) gnus-newsgroup-unreads)
+ (memq (car (car m)) gnus-newsgroup-unreads))
+ (setq prev m)
+ (setcdr prev (cdr m)))
+ (setq m (cdr m))))
+ ((eq 'bookmark (car prev))
+ ;; Bookmarks should be a subset of active articles.
+ (while m
+ (if (< (car (car m)) (car active))
+ (setcdr prev (cdr m))
+ (setq prev m))
+ (setq m (cdr m))))
+ ((eq 'killed (car prev))
+ ;; Articles that have been through the kill process are
+ ;; to be a subset of active articles.
+ (while (and m (< (or (and (numberp (car m)) (car m))
+ (cdr (car m)))
+ (car active)))
+ (setcdr prev (cdr m))
+ (setq m (cdr m)))
+ (if (and m (< (or (and (numberp (car m)) (car m))
+ (car (car m)))
+ (car active)))
+ (setcar (if (numberp (car m)) m (car m)) (car active))))
+ ((or (eq 'reply (car prev)) (eq 'expire (car prev)))
+ ;; The replied and expirable articles have to be articles
+ ;; that are active.
+ (while m
+ (if (< (car m) (car active))
+ (setcdr prev (cdr m))
+ (setq prev m))
+ (setq m (cdr m)))))
+ (setq marked-lists (cdr marked-lists)))
+ ;; Remove all lists that are empty.
+ (setq marked-lists (nth 3 info))
+ (if marked-lists
+ (progn
+ (while (= 1 (length (car marked-lists)))
+ (setq marked-lists (cdr marked-lists)))
+ (setq m (cdr (setq prev marked-lists)))
+ (while m
+ (if (= 1 (length (car m)))
+ (setcdr prev (cdr m))
+ (setq prev m))
+ (setq m (cdr m)))
+ (setcar (nthcdr 3 info) marked-lists)))
+ ;; Finally, if there are no marked lists at all left, and if there
+ ;; are no elements after the lists in the info list, we just chop
+ ;; the info list off before the marked lists.
+ (and (null marked-lists)
+ (not (nthcdr 4 info))
+ (setcdr (nthcdr 2 info) nil)))
+ info)
+
+(defun gnus-set-marked-articles
+ (info ticked replied expirable killed dormant bookmark score)
+ "Enter the various lists of marked articles into the newsgroup info list."
+ (let (newmarked)
+ (and ticked (setq newmarked (cons (cons 'tick ticked) nil)))
+ (and replied (setq newmarked (cons (cons 'reply replied) newmarked)))
+ (and expirable (setq newmarked (cons (cons 'expire expirable)
+ newmarked)))
+ (and killed (setq newmarked (cons (cons 'killed killed) newmarked)))
+ (and dormant (setq newmarked (cons (cons 'dormant dormant) newmarked)))
+ (and bookmark (setq newmarked (cons (cons 'bookmark bookmark)
+ newmarked)))
+ (and score (setq newmarked (cons (cons 'score score) newmarked)))
+ (if (nthcdr 3 info)
+ (progn
+ (setcar (nthcdr 3 info) newmarked)
+ (and (not newmarked)
+ (not (nthcdr 4 info))
+ (setcdr (nthcdr 2 info) nil)))
+ (if newmarked
+ (setcdr (nthcdr 2 info) (list newmarked))))))
+
+(defun gnus-add-marked-articles (group type articles &optional info force)
+ ;; Add ARTICLES of TYPE to the info of GROUP.
+ ;; If INFO is non-nil, use that info. If FORCE is non-nil, don't
+ ;; add, but replace marked articles of TYPE with ARTICLES.
+ (let ((info (or info (nth 2 (gnus-gethash group gnus-newsrc-hashtb))))
+ marked m)
+ (or (not info)
+ (and (not (setq marked (nthcdr 3 info)))
+ (setcdr (nthcdr 2 info) (list (list (cons type articles)))))
+ (and (not (setq m (assq type (car marked))))
+ (setcar marked (cons (cons type articles) (car marked))))
+ (if force
+ (setcdr m articles)
+ (nconc m articles)))))
+
+(defun gnus-set-mode-line (where)
+ "This function sets the mode line of the article or summary buffers.
+If WHERE is `summary', the summary mode line format will be used."
+ (if (memq where gnus-updated-mode-lines)
+ (let (mode-string)
+ (save-excursion
+ (set-buffer gnus-summary-buffer)
+ (let* ((mformat (if (eq where 'article)
+ gnus-article-mode-line-format-spec
+ gnus-summary-mode-line-format-spec))
+ (buffer-name (if (eq where 'article)
+ (buffer-name
+ (get-buffer gnus-article-buffer))
+ (buffer-name)))
+ (group-name gnus-newsgroup-name)
+ (article-number (or gnus-current-article 0))
+ (unread (- (length gnus-newsgroup-unreads)
+ (length gnus-newsgroup-dormant)))
+ (unread-and-unticked
+ (- unread (length gnus-newsgroup-marked)))
+ (unselected (length gnus-newsgroup-unselected))
+ (unread-and-unselected
+ (cond ((and (zerop unread-and-unticked)
+ (zerop unselected)) "")
+ ((zerop unselected)
+ (format "{%d more}" unread-and-unticked))
+ (t (format "{%d(+%d) more}"
+ unread-and-unticked unselected))))
+ (subject
+ (if gnus-current-headers
+ (mail-header-subject gnus-current-headers) ""))
+ (max-len (and gnus-mode-non-string-length
+ (- (frame-width) gnus-mode-non-string-length)))
+ header);; passed as argument to any user-format-funcs
+ (setq mode-string (eval mformat))
+ (or (numberp max-len)
+ (setq max-len (length mode-string)))
+ (if (< max-len 4) (setq max-len 4))
+ (if (> (length mode-string) max-len)
+ ;; modified by MORIOKA Tomohiko <morioka@jaist.ac.jp>
+ ;; function `substring' might cut on a middle
+ ;; of multi-octet character.
+ (setq mode-string
+ (concat (gnus-truncate-string mode-string (- max-len 3))
+ "...")))
+ (setq mode-string (format (format "%%-%ds" max-len)
+ mode-string))))
+ (setq mode-line-buffer-identification mode-string)
+ (set-buffer-modified-p t))))
+
+(defun gnus-create-xref-hashtb (from-newsgroup headers unreads)
+ "Go through the HEADERS list and add all Xrefs to a hash table.
+The resulting hash table is returned, or nil if no Xrefs were found."
+ (let* ((from-method (gnus-find-method-for-group from-newsgroup))
+ (prefix (if (and
+ (gnus-group-foreign-p from-newsgroup)
+ (not (memq 'virtual
+ (assoc (symbol-name (car from-method))
+ gnus-valid-select-methods))))
+ (gnus-group-real-prefix from-newsgroup)))
+ (xref-hashtb (make-vector 63 0))
+ start group entry number xrefs header)
+ (while headers
+ (setq header (car headers))
+ (if (and (setq xrefs (mail-header-xref header))
+ (not (memq (mail-header-number header) unreads)))
+ (progn
+ (setq start 0)
+ (while (string-match "\\([^ ]+\\):\\([0-9]+\\)" xrefs start)
+ (setq start (match-end 0))
+ (setq group (concat prefix (substring xrefs (match-beginning 1)
+ (match-end 1))))
+ (setq number
+ (string-to-int (substring xrefs (match-beginning 2)
+ (match-end 2))))
+ (if (setq entry (gnus-gethash group xref-hashtb))
+ (setcdr entry (cons number (cdr entry)))
+ (gnus-sethash group (cons number nil) xref-hashtb)))))
+ (setq headers (cdr headers)))
+ (if start xref-hashtb nil)))
+
+(defun gnus-mark-xrefs-as-read (from-newsgroup headers unreads expirable)
+ "Look through all the headers and mark the Xrefs as read."
+ (let ((virtual (memq 'virtual
+ (assoc (symbol-name (car (gnus-find-method-for-group
+ from-newsgroup)))
+ gnus-valid-select-methods)))
+ name entry info xref-hashtb idlist method
+ nth4)
+ (save-excursion
+ (set-buffer gnus-group-buffer)
+ (if (setq xref-hashtb
+ (gnus-create-xref-hashtb from-newsgroup headers unreads))
+ (mapatoms
+ (lambda (group)
+ (if (string= from-newsgroup (setq name (symbol-name group)))
+ ()
+ (setq idlist (symbol-value group))
+ ;; Dead groups are not updated.
+ (if (and (prog1
+ (setq entry (gnus-gethash name gnus-newsrc-hashtb)
+ info (nth 2 entry))
+ (if (stringp (setq nth4 (nth 4 info)))
+ (setq nth4 (gnus-server-to-method nth4))))
+ ;; Only do the xrefs if the group has the same
+ ;; select method as the group we have just read.
+ (or (gnus-methods-equal-p
+ nth4 (gnus-find-method-for-group from-newsgroup))
+ virtual
+ (equal nth4
+ (setq method (gnus-find-method-for-group
+ from-newsgroup)))
+ (and (equal (car nth4) (car method))
+ (equal (nth 1 nth4) (nth 1 method))))
+ gnus-use-cross-reference
+ (or (not (eq gnus-use-cross-reference t))
+ virtual
+ ;; Only do cross-references on subscribed
+ ;; groups, if that is what is wanted.
+ (<= (nth 1 info) gnus-level-subscribed)))
+ (gnus-group-make-articles-read name idlist expirable))))
+ xref-hashtb)))))
+
+(defun gnus-group-make-articles-read (group articles expirable)
+ (let* ((num 0)
+ (entry (gnus-gethash group gnus-newsrc-hashtb))
+ (info (nth 2 entry))
+ (active (gnus-gethash group gnus-active-hashtb))
+ exps expirable range)
+ ;; First peel off all illegal article numbers.
+ (if active
+ (let ((ids articles)
+ (ticked (cdr (assq 'tick (nth 3 info))))
+ (dormant (cdr (assq 'dormant (nth 3 info))))
+ id first)
+ (setq exps nil)
+ (while ids
+ (setq id (car ids))
+ (if (and first (> id (cdr active)))
+ (progn
+ ;; We'll end up in this situation in one particular
+ ;; obscure situation. If you re-scan a group and get
+ ;; a new article that is cross-posted to a different
+ ;; group that has not been re-scanned, you might get
+ ;; crossposted article that has a higher number than
+ ;; Gnus believes possible. So we re-activate this
+ ;; group as well. This might mean doing the
+ ;; crossposting thingy will *increase* the number
+ ;; of articles in some groups. Tsk, tsk.
+ (setq active (or (gnus-activate-group group) active))))
+ (if (or (> id (cdr active))
+ (< id (car active))
+ (memq id ticked)
+ (memq id dormant))
+ (setq articles (delq id articles)))
+ (and (memq id expirable)
+ (setq exps (cons id exps)))
+ (setq ids (cdr ids)))))
+ ;; Update expirable articles.
+ (gnus-add-marked-articles nil 'expirable exps info)
+ (and active
+ (null (nth 2 info))
+ (> (car active) 1)
+ (setcar (nthcdr 2 info) (cons 1 (1- (car active)))))
+ (setcar (nthcdr 2 info)
+ (setq range
+ (gnus-add-to-range
+ (nth 2 info)
+ (setq articles (sort articles '<)))))
+ ;; Then we have to re-compute how many unread
+ ;; articles there are in this group.
+ (if active
+ (progn
+ (cond
+ ((not range)
+ (setq num (- (1+ (cdr active)) (car active))))
+ ((not (listp (cdr range)))
+ (setq num (- (cdr active) (- (1+ (cdr range))
+ (car range)))))
+ (t
+ (while range
+ (if (numberp (car range))
+ (setq num (1+ num))
+ (setq num (+ num (- (1+ (cdr (car range)))
+ (car (car range))))))
+ (setq range (cdr range)))
+ (setq num (- (cdr active) num))))
+ ;; Update the number of unread articles.
+ (setcar
+ entry
+ (max 0 (- num
+ (length (cdr (assq 'tick (nth 3 info))))
+ (length
+ (cdr (assq 'dormant (nth 3 info)))))))
+ ;; Update the group buffer.
+ (gnus-group-update-group group t)))))
+
+(defun gnus-methods-equal-p (m1 m2)
+ (let ((m1 (or m1 gnus-select-method))
+ (m2 (or m2 gnus-select-method)))
+ (or (equal m1 m2)
+ (and (eq (car m1) (car m2))
+ (or (not (memq 'address (assoc (symbol-name (car m1))
+ gnus-valid-select-methods)))
+ (equal (nth 1 m1) (nth 1 m2)))))))
+
+(defsubst gnus-header-value ()
+ (buffer-substring (match-end 0) (gnus-point-at-eol)))
+
+(defvar gnus-newsgroup-none-id 0)
+
+(defun gnus-get-newsgroup-headers ()
+ (setq gnus-article-internal-prepare-hook nil)
+ (let ((cur nntp-server-buffer)
+ (dependencies gnus-newsgroup-dependencies)
+ headers id dep end ref)
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ ;; Allow the user to mangle the headers before parsing them.
+ (run-hooks 'gnus-parse-headers-hook)
+ (goto-char (point-min))
+ ;; Search to the beginning of the next header. Error messages
+ ;; do not begin with 2 or 3.
+ (while (re-search-forward "^[23][0-9]+ " nil t)
+ (let ((header (make-vector 9 nil))
+ (case-fold-search t)
+ (p (point))
+ in-reply-to)
+ (setq id nil
+ ref nil)
+ (mail-header-set-number header (read cur))
+ ;; This implementation of this function, with nine
+ ;; search-forwards instead of the one re-search-forward and
+ ;; a case (which basically was the old function) is actually
+ ;; about twice as fast, even though it looks messier. You
+ ;; can't have everything, I guess. Speed and elegance
+ ;; doesn't always come hand in hand.
+ (save-restriction
+ (narrow-to-region (point) (or (save-excursion
+ (search-forward "\n.\n" nil t))
+ (point)))
+ (if (search-forward "\nfrom: " nil t)
+ (mail-header-set-from header (gnus-header-value))
+ (mail-header-set-from header "(nobody)"))
+ (goto-char p)
+ (if (search-forward "\nsubject: " nil t)
+ (mail-header-set-subject header (gnus-header-value))
+ (mail-header-set-subject header "(none)"))
+ (goto-char p)
+ (and (search-forward "\nxref: " nil t)
+ (mail-header-set-xref header (gnus-header-value)))
+ (goto-char p)
+ (or (numberp (and (search-forward "\nlines: " nil t)
+ (mail-header-set-lines header (read cur))))
+ (mail-header-set-lines header 0))
+ (goto-char p)
+ (and (search-forward "\ndate: " nil t)
+ (mail-header-set-date header (gnus-header-value)))
+ (goto-char p)
+ (if (search-forward "\nmessage-id: " nil t)
+ (mail-header-set-id header (setq id (gnus-header-value)))
+ ;; If there was no message-id, we just fake one to make
+ ;; subsequent routines simpler.
+ (mail-header-set-id
+ header
+ (setq id (concat "none+"
+ (int-to-string
+ (setq gnus-newsgroup-none-id
+ (1+ gnus-newsgroup-none-id)))))))
+ (goto-char p)
+ (if (search-forward "\nreferences: " nil t)
+ (progn
+ (mail-header-set-references header (gnus-header-value))
+ (setq end (match-end 0))
+ (save-excursion
+ (setq ref
+ (downcase
+ (buffer-substring
+ (progn
+ (end-of-line)
+ (search-backward ">" end t)
+ (1+ (point)))
+ (progn
+ (search-backward "<" end t)
+ (point)))))))
+ ;; Get the references from the in-reply-to header if there
+ ;; ware no references and the in-reply-to header looks
+ ;; promising.
+ (if (and (search-forward "\nin-reply-to: " nil t)
+ (setq in-reply-to (gnus-header-value))
+ (string-match "<[^>]+>" in-reply-to))
+ (progn
+ (mail-header-set-references
+ header
+ (setq ref (substring in-reply-to (match-beginning 0)
+ (match-end 0))))
+ (setq ref (downcase ref)))
+ (setq ref "none")))
+ ;; We do some threading while we read the headers. The
+ ;; message-id and the last reference are both entered into
+ ;; the same hash table. Some tippy-toeing around has to be
+ ;; done in case an article has arrived before the article
+ ;; which it refers to.
+ (if (boundp (setq dep (intern (downcase id) dependencies)))
+ (if (car (symbol-value dep))
+ ;; An article with this Message-ID has already
+ ;; been seen, so we ignore this one, except we add
+ ;; any additional Xrefs (in case the two articles
+ ;; came from different servers.
+ (progn
+ (mail-header-set-xref
+ (car (symbol-value dep))
+ (concat (or (mail-header-xref
+ (car (symbol-value dep))) "")
+ (or (mail-header-xref header) "")))
+ (setq header nil))
+ (setcar (symbol-value dep) header))
+ (set dep (list header)))
+ (if header
+ (progn
+ (if (boundp (setq dep (intern ref dependencies)))
+ (setcdr (symbol-value dep)
+ (cons header (cdr (symbol-value dep))))
+ (set dep (list nil header)))
+ (setq headers (cons header headers))))
+ (goto-char (point-max))))))
+ (nreverse headers)))
+
+;; The following macros and functions were written by Felix Lee
+;; <flee@cse.psu.edu>.
+
+(defmacro gnus-nov-read-integer ()
+ '(prog1
+ (if (= (following-char) ?\t)
+ 0
+ (let ((num (condition-case nil (read buffer) (error nil))))
+ (if (numberp num) num 0)))
+ (or (eobp) (forward-char 1))))
+
+(defmacro gnus-nov-skip-field ()
+ '(search-forward "\t" eol 'move))
+
+(defmacro gnus-nov-field ()
+ '(buffer-substring (point) (if (gnus-nov-skip-field) (1- (point)) eol)))
+
+;; Goes through the xover lines and returns a list of vectors
+(defun gnus-get-newsgroup-headers-xover (sequence)
+ "Parse the news overview data in the server buffer, and return a
+list of headers that match SEQUENCE (see `nntp-retrieve-headers')."
+ ;; Get the Xref when the users reads the articles since most/some
+ ;; NNTP servers do not include Xrefs when using XOVER.
+ (setq gnus-article-internal-prepare-hook '(gnus-article-get-xrefs))
+ (let ((cur nntp-server-buffer)
+ (dependencies gnus-newsgroup-dependencies)
+ number headers header)
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ ;; Allow the user to mangle the headers before parsing them.
+ (run-hooks 'gnus-parse-headers-hook)
+ (goto-char (point-min))
+ (while (and sequence (not (eobp)))
+ (setq number (read cur))
+ (while (and sequence (< (car sequence) number))
+ (setq sequence (cdr sequence)))
+ (and sequence
+ (eq number (car sequence))
+ (progn
+ (setq sequence (cdr sequence))
+ (if (setq header
+ (inline (gnus-nov-parse-line number dependencies)))
+ (setq headers (cons header headers)))))
+ (forward-line 1))
+ (setq headers (nreverse headers)))
+ headers))
+
+;; This function has to be called with point after the article number
+;; on the beginning of the line.
+(defun gnus-nov-parse-line (number dependencies)
+ (let ((none 0)
+ (eol (gnus-point-at-eol))
+ (buffer (current-buffer))
+ header ref id dep)
+
+ ;; overview: [num subject from date id refs chars lines misc]
+ (narrow-to-region (point) eol)
+ (or (eobp) (forward-char))
+
+ (condition-case nil
+ (setq header
+ (vector
+ number ; number
+ (gnus-nov-field) ; subject
+ (gnus-nov-field) ; from
+ (gnus-nov-field) ; date
+ (setq id (or (gnus-nov-field)
+ (concat "none+"
+ (int-to-string
+ (setq none (1+ none)))))) ; id
+ (progn
+ (save-excursion
+ (let ((beg (point)))
+ (search-forward "\t" eol)
+ (if (search-backward ">" beg t)
+ (setq ref
+ (downcase
+ (buffer-substring
+ (1+ (point))
+ (progn
+ (search-backward "<" beg t)
+ (point)))))
+ (setq ref nil))))
+ (gnus-nov-field)) ; refs
+ (gnus-nov-read-integer) ; chars
+ (gnus-nov-read-integer) ; lines
+ (if (= (following-char) ?\n)
+ nil
+ (gnus-nov-field)) ; misc
+ ))
+ (error (progn
+ (ding)
+ (message "Strange nov line.")
+ (setq header nil)
+ (goto-char eol))))
+
+ (widen)
+
+ ;; We build the thread tree.
+ (and header
+ (if (boundp (setq dep (intern (downcase id) dependencies)))
+ (if (car (symbol-value dep))
+ ;; An article with this Message-ID has already been seen,
+ ;; so we ignore this one, except we add any additional
+ ;; Xrefs (in case the two articles came from different
+ ;; servers.
+ (progn
+ (mail-header-set-xref
+ (car (symbol-value dep))
+ (concat (or (mail-header-xref (car (symbol-value dep))) "")
+ (or (mail-header-xref header) "")))
+ (setq header nil))
+ (setcar (symbol-value dep) header))
+ (set dep (list header))))
+ (if header
+ (progn
+ (if (boundp (setq dep (intern (or ref "none")
+ dependencies)))
+ (setcdr (symbol-value dep)
+ (cons header (cdr (symbol-value dep))))
+ (set dep (list nil header)))))
+ header))
+
+(defun gnus-article-get-xrefs ()
+ "Fill in the Xref value in `gnus-current-headers', if necessary.
+This is meant to be called in `gnus-article-internal-prepare-hook'."
+ (let ((headers (save-excursion (set-buffer gnus-summary-buffer)
+ gnus-current-headers)))
+ (or (not gnus-use-cross-reference)
+ (not headers)
+ (and (mail-header-xref headers)
+ (not (string= (mail-header-xref headers) "")))
+ (let ((case-fold-search t)
+ xref)
+ (save-restriction
+ (gnus-narrow-to-headers)
+ (goto-char (point-min))
+ (if (or (and (eq (downcase (following-char)) ?x)
+ (looking-at "Xref:"))
+ (search-forward "\nXref:" nil t))
+ (progn
+ (goto-char (1+ (match-end 0)))
+ (setq xref (buffer-substring (point)
+ (progn (end-of-line) (point))))
+ (mail-header-set-xref headers xref))))))))
+
+(defalias 'gnus-find-header-by-number 'gnus-get-header-by-number)
+(make-obsolete 'gnus-find-header-by-number 'gnus-get-header-by-number)
+
+(defun gnus-make-headers-hashtable-by-number ()
+ "Make hashtable for the variable gnus-newsgroup-headers by number."
+ (save-excursion
+ (set-buffer gnus-summary-buffer)
+ (let ((headers gnus-newsgroup-headers)
+ header)
+ (setq gnus-newsgroup-headers-hashtb-by-number
+ (gnus-make-hashtable (length headers)))
+ (while headers
+ (setq header (car headers))
+ (gnus-sethash (int-to-string (mail-header-number header))
+ header gnus-newsgroup-headers-hashtb-by-number)
+ (setq headers (cdr headers))))))
+
+(defun gnus-more-header-backward ()
+ "Find new header backward."
+ (let ((first (car (gnus-gethash gnus-newsgroup-name gnus-active-hashtb)))
+ (artnum gnus-newsgroup-begin)
+ (header nil))
+ (while (and (not header)
+ (> artnum first))
+ (setq artnum (1- artnum))
+ (setq header (gnus-read-header artnum)))
+ header))
+
+(defun gnus-more-header-forward (&optional backward)
+ "Find new header forward.
+If BACKWARD, find new header backward instead."
+ (if backward
+ (gnus-more-header-backward)
+ (let ((last (cdr (gnus-gethash gnus-newsgroup-name gnus-active-hashtb)))
+ (artnum gnus-newsgroup-end)
+ (header nil))
+ (while (and (not header)
+ (< artnum last))
+ (setq artnum (1+ artnum))
+ (setq header (gnus-read-header artnum)))
+ header)))
+
+(defun gnus-extend-newsgroup (header &optional backward)
+ "Extend newsgroup selection with HEADER.
+Optional argument BACKWARD means extend toward backward."
+ (if header
+ (let ((artnum (mail-header-number header)))
+ (setq gnus-newsgroup-headers
+ (if backward
+ (cons header gnus-newsgroup-headers)
+ (nconc gnus-newsgroup-headers (list header))))
+ (setq gnus-newsgroup-unselected
+ (delq artnum gnus-newsgroup-unselected))
+ (setq gnus-newsgroup-begin (min gnus-newsgroup-begin artnum))
+ (setq gnus-newsgroup-end (max gnus-newsgroup-end artnum)))))
+
+(defun gnus-summary-work-articles (n)
+ "Return a list of articles to be worked upon. The prefix argument,
+the list of process marked articles, and the current article will be
+taken into consideration."
+ (let (articles)
+ (if (and n (numberp n))
+ (let ((backward (< n 0))
+ (n (abs n)))
+ (save-excursion
+ (while (and (> n 0)
+ (setq articles (cons (gnus-summary-article-number)
+ articles))
+ (gnus-summary-search-forward nil nil backward))
+ (setq n (1- n))))
+ (sort articles (function <)))
+ (or (reverse gnus-newsgroup-processable)
+ (list (gnus-summary-article-number))))))
+
+(defun gnus-summary-search-group (&optional backward use-level)
+ "Search for next unread newsgroup.
+If optional argument BACKWARD is non-nil, search backward instead."
+ (save-excursion
+ (set-buffer gnus-group-buffer)
+ (if (gnus-group-search-forward
+ backward nil (if use-level (gnus-group-group-level) nil))
+ (gnus-group-group-name))))
+
+(defun gnus-summary-best-group (&optional exclude-group)
+ "Find the name of the best unread group.
+If EXCLUDE-GROUP, do not go to this group."
+ (save-excursion
+ (set-buffer gnus-group-buffer)
+ (save-excursion
+ (gnus-group-best-unread-group exclude-group))))
+
+(defun gnus-subject-equal (s1 s2)
+ (cond
+ ((null gnus-summary-gather-subject-limit)
+ (equal (gnus-simplify-subject-re s1)
+ (gnus-simplify-subject-re s2)))
+ ((eq gnus-summary-gather-subject-limit 'fuzzy)
+ (equal (gnus-simplify-subject-fuzzy s1)
+ (gnus-simplify-subject-fuzzy s2)))
+ ((numberp gnus-summary-gather-subject-limit)
+ (equal (gnus-limit-string s1 gnus-summary-gather-subject-limit)
+ (gnus-limit-string s2 gnus-summary-gather-subject-limit)))
+ (t
+ (equal s1 s2))))
+
+(defun gnus-summary-search-subject (&optional backward unread subject)
+ "Search for article forward.
+If BACKWARD is non-nil, search backward.
+If UNREAD is non-nil, only unread articles are selected.
+If SUBJECT is non-nil, the article which has the same subject will be
+searched for."
+ (let ((func (if backward 'previous-single-property-change
+ 'next-single-property-change))
+ (beg (point))
+ (did t)
+ pos psubject)
+ (beginning-of-line)
+ (and gnus-summary-check-current unread
+ (eq (get-text-property (point) 'gnus-mark) gnus-unread-mark)
+ (setq did nil))
+ (if (not did)
+ ()
+ (forward-char (if backward (if (bobp) 0 -1) (if (eobp) 0 1)))
+ (while
+ (and
+ (setq pos (funcall func (point) 'gnus-number))
+ (goto-char (if backward (1- pos) pos))
+ (setq did
+ (not (and
+ (or (not unread)
+ (eq (get-text-property (point) 'gnus-mark)
+ gnus-unread-mark))
+ (or (not subject)
+ (and (setq psubject
+ (inline (gnus-summary-subject-string)))
+ (inline
+ (gnus-subject-equal subject psubject)))))))
+ (if backward (if (bobp) nil (forward-char -1) t)
+ (if (eobp) nil (forward-char 1) t)))))
+ (if did
+ (progn (goto-char beg) nil)
+ (prog1
+ (get-text-property (point) 'gnus-number)
+ (gnus-summary-show-thread)
+ (gnus-summary-position-cursor)))))
+
+(defun gnus-summary-pseudo-article ()
+ "The thread level of the article on the current line."
+ (get-text-property (gnus-point-at-bol) 'gnus-pseudo))
+
+(defalias 'gnus-summary-score 'gnus-summary-article-score)
+(make-obsolete 'gnus-summary-score 'gnus-summary-article-score)
+(defun gnus-summary-article-score ()
+ "Return current article score."
+ (or (cdr (assq (gnus-summary-article-number) gnus-newsgroup-scored))
+ gnus-summary-default-score 0))
+
+(defun gnus-summary-recenter ()
+ "Center point in the summary window.
+If `gnus-auto-center-summary' is nil, or the article buffer isn't
+displayed, no centering will be performed."
+ ;; Suggested by earle@mahendo.JPL.NASA.GOV (Greg Earle).
+ ;; Recenter only when requested. Suggested by popovich@park.cs.columbia.edu.
+ (let* ((top (cond ((< (window-height) 4) 0)
+ ((< (window-height) 7) 1)
+ (t 2)))
+ (height (1- (window-height)))
+ (bottom (save-excursion (goto-char (point-max))
+ (forward-line (- height))
+ (point)))
+ (window (get-buffer-window (current-buffer))))
+ (and
+ ;; The user has to want it,
+ gnus-auto-center-summary
+ ;; the article buffer must be displayed,
+ (get-buffer-window gnus-article-buffer)
+ ;; Set the window start to either `bottom', which is the biggest
+ ;; possible valid number, or the second line from the top,
+ ;; whichever is the least.
+ (set-window-start
+ window (min bottom (save-excursion (forward-line (- top)) (point)))))))
+
+;; Function written by Stainless Steel Rat <ratinox@ccs.neu.edu>.
+(defun gnus-short-group-name (group &optional levels)
+ "Collapse GROUP name LEVELS."
+ (let* ((name "") (foreign "") (depth -1) (skip 1)
+ (levels (or levels
+ (progn
+ (while (string-match "\\." group skip)
+ (setq skip (match-end 0)
+ depth (+ depth 1)))
+ depth))))
+ (if (string-match ":" group)
+ (setq foreign (substring group 0 (match-end 0))
+ group (substring group (match-end 0))))
+ (while group
+ (if (and (string-match "\\." group) (> levels 0))
+ (setq name (concat name (substring group 0 1))
+ group (substring group (match-end 0))
+ levels (- levels 1)
+ name (concat name "."))
+ (setq name (concat foreign name group)
+ group nil)))
+ name))
+
+(defun gnus-summary-jump-to-group (newsgroup)
+ "Move point to NEWSGROUP in group mode buffer."
+ ;; Keep update point of group mode buffer if visible.
+ (if (eq (current-buffer) (get-buffer gnus-group-buffer))
+ (save-window-excursion
+ ;; Take care of tree window mode.
+ (if (get-buffer-window gnus-group-buffer)
+ (pop-to-buffer gnus-group-buffer))
+ (gnus-group-jump-to-group newsgroup))
+ (save-excursion
+ ;; Take care of tree window mode.
+ (if (get-buffer-window gnus-group-buffer)
+ (pop-to-buffer gnus-group-buffer)
+ (set-buffer gnus-group-buffer))
+ (gnus-group-jump-to-group newsgroup))))
+
+;; This function returns a list of article numbers based on the
+;; difference between the ranges of read articles in this group and
+;; the range of active articles.
+(defun gnus-list-of-unread-articles (group)
+ (let* ((read (nth 2 (nth 2 (gnus-gethash group gnus-newsrc-hashtb))))
+ (active (gnus-gethash group gnus-active-hashtb))
+ (last (cdr active))
+ first nlast unread)
+ ;; If none are read, then all are unread.
+ (if (not read)
+ (setq first (car active))
+ ;; If the range of read articles is a single range, then the
+ ;; first unread article is the article after the last read
+ ;; article. Sounds logical, doesn't it?
+ (if (not (listp (cdr read)))
+ (setq first (1+ (cdr read)))
+ ;; `read' is a list of ranges.
+ (if (/= (setq nlast (or (and (numberp (car read)) (car read))
+ (car (car read)))) 1)
+ (setq first 1))
+ (while read
+ (if first
+ (while (< first nlast)
+ (setq unread (cons first unread))
+ (setq first (1+ first))))
+ (setq first (1+ (if (atom (car read)) (car read) (cdr (car read)))))
+ (setq nlast (if (atom (car (cdr read)))
+ (car (cdr read))
+ (car (car (cdr read)))))
+ (setq read (cdr read)))))
+ ;; And add the last unread articles.
+ (while (<= first last)
+ (setq unread (cons first unread))
+ (setq first (1+ first)))
+ ;; Return the list of unread articles.
+ (nreverse unread)))
+
+(defun gnus-list-of-read-articles (group)
+ (let ((info (nth 2 (gnus-gethash group gnus-newsrc-hashtb)))
+ (active (gnus-gethash group gnus-active-hashtb)))
+ (and info active
+ (gnus-sorted-complement
+ (gnus-uncompress-range active)
+ (gnus-list-of-unread-articles group)))))
+
+;; Various summary commands
+
+(defun gnus-summary-universal-argument ()
+ "Perform any operation on all articles marked with the process mark."
+ (interactive)
+ (gnus-set-global-variables)
+ (let ((articles (reverse gnus-newsgroup-processable))
+ func)
+ (or articles (error "No articles marked"))
+ (or (setq func (key-binding (read-key-sequence "C-c C-u")))
+ (error "Undefined key"))
+ (while articles
+ (gnus-summary-goto-subject (car articles))
+ (command-execute func)
+ (gnus-summary-remove-process-mark (car articles))
+ (setq articles (cdr articles)))))
+
+(defun gnus-summary-toggle-truncation (&optional arg)
+ "Toggle truncation of summary lines.
+With arg, turn line truncation on iff arg is positive."
+ (interactive "P")
+ (setq truncate-lines
+ (if (null arg) (not truncate-lines)
+ (> (prefix-numeric-value arg) 0)))
+ (redraw-display))
+
+(defun gnus-summary-reselect-current-group (&optional all)
+ "Once exit and then reselect the current newsgroup.
+The prefix argument ALL means to select all articles."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (let ((current-subject (gnus-summary-article-number))
+ (group gnus-newsgroup-name))
+ (setq gnus-newsgroup-begin nil)
+ (gnus-summary-exit t)
+ ;; We have to adjust the point of group mode buffer because the
+ ;; current point was moved to the next unread newsgroup by
+ ;; exiting.
+ (gnus-summary-jump-to-group group)
+ (gnus-group-read-group all t)
+ (gnus-summary-goto-subject current-subject)))
+
+(defun gnus-summary-rescan-group (&optional all)
+ "Exit the newsgroup, ask for new articles, and select the newsgroup."
+ (interactive "P")
+ (gnus-set-global-variables)
+ ;; Fix by Ilja Weis <kult@uni-paderborn.de>.
+ (let ((group gnus-newsgroup-name))
+ (gnus-summary-exit)
+ (gnus-summary-jump-to-group group)
+ (save-excursion
+ (set-buffer gnus-group-buffer)
+ (gnus-group-get-new-news-this-group 1))
+ (gnus-summary-jump-to-group group)
+ (gnus-group-read-group all)))
+
+(defun gnus-summary-update-info ()
+ (let* ((group gnus-newsgroup-name))
+ (if gnus-newsgroup-kill-headers
+ (setq gnus-newsgroup-killed
+ (gnus-compress-sequence
+ (nconc
+ (gnus-set-sorted-intersection
+ (gnus-uncompress-range gnus-newsgroup-killed)
+ (setq gnus-newsgroup-unselected
+ (sort gnus-newsgroup-unselected '<)))
+ (setq gnus-newsgroup-unreads
+ (sort gnus-newsgroup-unreads '<))) t)))
+ (or (listp (cdr gnus-newsgroup-killed))
+ (setq gnus-newsgroup-killed (list gnus-newsgroup-killed)))
+ (let ((headers gnus-newsgroup-headers))
+ (gnus-close-group group)
+ (run-hooks 'gnus-exit-group-hook)
+ (gnus-update-read-articles
+ group gnus-newsgroup-unreads gnus-newsgroup-unselected
+ gnus-newsgroup-marked
+ t gnus-newsgroup-replied gnus-newsgroup-expirable
+ gnus-newsgroup-killed gnus-newsgroup-dormant
+ gnus-newsgroup-bookmarks
+ (and gnus-save-score gnus-newsgroup-scored))
+ (and gnus-use-cross-reference
+ (gnus-mark-xrefs-as-read
+ group headers gnus-newsgroup-unreads gnus-newsgroup-expirable))
+ ;; Do adaptive scoring, and possibly save score files.
+ (and gnus-newsgroup-adaptive
+ (gnus-score-adaptive))
+ (and gnus-use-scoring
+ (fboundp 'gnus-score-save)
+ (funcall 'gnus-score-save))
+ ;; Do not switch windows but change the buffer to work.
+ (set-buffer gnus-group-buffer)
+ (or (gnus-ephemeral-group-p gnus-newsgroup-name)
+ (gnus-group-update-group group)))))
+
+(defun gnus-summary-exit (&optional temporary)
+ "Exit reading current newsgroup, and then return to group selection mode.
+gnus-exit-group-hook is called with no arguments if that value is non-nil."
+ (interactive)
+ (gnus-set-global-variables)
+ (gnus-kill-save-kill-buffer)
+ (let* ((group gnus-newsgroup-name)
+ (quit-config (gnus-group-quit-config gnus-newsgroup-name))
+ (mode major-mode)
+ (buf (current-buffer)))
+ (run-hooks 'gnus-summary-prepare-exit-hook)
+ ;; Make all changes in this group permanent.
+ (gnus-summary-update-info)
+ (set-buffer buf)
+ (and gnus-use-cache (gnus-cache-possibly-remove-articles))
+ ;; Make sure where I was, and go to next newsgroup.
+ (set-buffer gnus-group-buffer)
+ (or quit-config
+ (progn
+ (gnus-group-jump-to-group group)
+ (gnus-group-next-unread-group 1)))
+ (if temporary
+ nil ;Nothing to do.
+ ;; We set all buffer-local variables to nil. It is unclear why
+ ;; this is needed, but if we don't, buffer-local variables are
+ ;; not garbage-collected, it seems. This would the lead to en
+ ;; ever-growing Emacs.
+ (set-buffer buf)
+ (gnus-summary-clear-local-variables)
+ ;; We clear the global counterparts of the buffer-local
+ ;; variables as well, just to be on the safe side.
+ (gnus-configure-windows 'group 'force)
+ (gnus-summary-clear-local-variables)
+ ;; Return to group mode buffer.
+ (if (eq mode 'gnus-summary-mode)
+ (gnus-kill-buffer buf))
+ (if (get-buffer gnus-article-buffer)
+ (bury-buffer gnus-article-buffer))
+ (setq gnus-current-select-method gnus-select-method)
+ (pop-to-buffer gnus-group-buffer)
+ (if (not quit-config)
+ (progn
+ (gnus-group-jump-to-group group)
+ (gnus-group-next-unread-group 1))
+ (if (not (buffer-name (car quit-config)))
+ (gnus-configure-windows 'group 'force)
+ (set-buffer (car quit-config))
+ (and (eq major-mode 'gnus-summary-mode)
+ (gnus-set-global-variables))
+ (gnus-configure-windows (cdr quit-config))))
+ (run-hooks 'gnus-summary-exit-hook))))
+
+(defalias 'gnus-summary-quit 'gnus-summary-exit-no-update)
+(defun gnus-summary-exit-no-update (&optional no-questions)
+ "Quit reading current newsgroup without updating read article info."
+ (interactive)
+ (gnus-set-global-variables)
+ (let* ((group gnus-newsgroup-name)
+ (quit-config (gnus-group-quit-config group)))
+ (if (or no-questions
+ gnus-expert-user
+ (gnus-y-or-n-p "Do you really wanna quit reading this group? "))
+ (progn
+ (gnus-close-group group)
+ (gnus-summary-clear-local-variables)
+ (set-buffer gnus-group-buffer)
+ (gnus-summary-clear-local-variables)
+ ;; Return to group selection mode.
+ (gnus-configure-windows 'group 'force)
+ (if (get-buffer gnus-summary-buffer)
+ (kill-buffer gnus-summary-buffer))
+ (if (get-buffer gnus-article-buffer)
+ (bury-buffer gnus-article-buffer))
+ (if (equal (gnus-group-group-name) group)
+ (gnus-group-next-unread-group 1))
+ (if quit-config
+ (progn
+ (if (not (buffer-name (car quit-config)))
+ (gnus-configure-windows 'group 'force)
+ (set-buffer (car quit-config))
+ (and (eq major-mode 'gnus-summary-mode)
+ (gnus-set-global-variables))
+ (gnus-configure-windows (cdr quit-config)))))))))
+
+;; Suggested by Andrew Eskilsson <pi92ae@pt.hk-r.se>.
+(defun gnus-summary-fetch-faq (group)
+ "Fetch the FAQ for the current group."
+ (interactive (list gnus-newsgroup-name))
+ (let (gnus-faq-buffer)
+ (and (setq gnus-faq-buffer (gnus-group-fetch-faq group))
+ (gnus-configure-windows 'summary-faq))))
+
+;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
+(defun gnus-summary-describe-group (&optional force)
+ "Describe the current newsgroup."
+ (interactive "P")
+ (gnus-group-describe-group force gnus-newsgroup-name))
+
+(defun gnus-summary-describe-briefly ()
+ "Describe summary mode commands briefly."
+ (interactive)
+ (gnus-message 6
+ (substitute-command-keys "\\<gnus-summary-mode-map>\\[gnus-summary-next-page]:Select \\[gnus-summary-next-unread-article]:Forward \\[gnus-summary-prev-unread-article]:Backward \\[gnus-summary-exit]:Exit \\[gnus-info-find-node]:Run Info \\[gnus-summary-describe-briefly]:This help")))
+
+;; Walking around group mode buffer from summary mode.
+
+(defun gnus-summary-next-group (&optional no-article target-group backward)
+ "Exit current newsgroup and then select next unread newsgroup.
+If prefix argument NO-ARTICLE is non-nil, no article is selected
+initially. If NEXT-GROUP, go to this group. If BACKWARD, go to
+previous group instead."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (let ((current-group gnus-newsgroup-name)
+ (current-buffer (current-buffer))
+ entered)
+ ;; First we semi-exit this group to update Xrefs and all variables.
+ ;; We can't do a real exit, because the window conf must remain
+ ;; the same in case the user is prompted for info, and we don't
+ ;; want the window conf to change before that...
+ (gnus-summary-exit t)
+ (while (not entered)
+ ;; Then we find what group we are supposed to enter.
+ (set-buffer gnus-group-buffer)
+ (gnus-group-jump-to-group current-group)
+ (setq target-group
+ (or target-group
+ (if (eq gnus-keep-same-level 'best)
+ (gnus-summary-best-group gnus-newsgroup-name)
+ (gnus-summary-search-group backward gnus-keep-same-level))))
+ (if (not target-group)
+ ;; There are no further groups, so we return to the group
+ ;; buffer.
+ (progn
+ (gnus-message 5 "Returning to the group buffer")
+ (setq entered t)
+ (set-buffer current-buffer)
+ (gnus-summary-exit))
+ ;; We try to enter the target group.
+ (gnus-group-jump-to-group target-group)
+ (let ((unreads (gnus-group-group-unread)))
+ (if (and (or (eq t unreads)
+ (and unreads (not (zerop unreads))))
+ (gnus-summary-read-group
+ target-group nil no-article current-buffer))
+ (setq entered t)
+ (setq current-group target-group
+ target-group nil)))))))
+
+(defun gnus-summary-next-group-old (&optional no-article group backward)
+ "Exit current newsgroup and then select next unread newsgroup.
+If prefix argument NO-ARTICLE is non-nil, no article is selected initially.
+If BACKWARD, go to previous group instead."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (let ((ingroup gnus-newsgroup-name)
+ (sumbuf (current-buffer))
+ num)
+ (set-buffer gnus-group-buffer)
+ (if (and group
+ (or (and (numberp (setq num (car (gnus-gethash
+ group gnus-newsrc-hashtb))))
+ (< num 1))
+ (null num)))
+ (progn
+ (gnus-group-jump-to-group group)
+ (setq group nil))
+ (gnus-group-jump-to-group ingroup))
+ (gnus-summary-search-group backward)
+ (let ((group (or group (gnus-summary-search-group backward))))
+ (set-buffer sumbuf)
+ (gnus-summary-exit t) ;Update all information.
+ (if (null group)
+ (gnus-summary-exit-no-update t)
+ (gnus-group-jump-to-group ingroup)
+ (setq group (gnus-summary-search-group backward))
+ (gnus-message 5 "Selecting %s..." group)
+ (set-buffer gnus-group-buffer)
+ ;; We are now in group mode buffer.
+ ;; Make sure group mode buffer point is on GROUP.
+ (gnus-group-jump-to-group group)
+ (if (not (eq gnus-auto-select-next 'quietly))
+ (progn
+ (gnus-summary-read-group group nil no-article sumbuf)
+ (and (string= gnus-newsgroup-name ingroup)
+ (bufferp sumbuf) (buffer-name sumbuf)
+ (progn
+ (set-buffer (setq gnus-summary-buffer sumbuf))
+ (gnus-summary-exit-no-update t))))
+ (let ((prevgroup group))
+ (gnus-group-jump-to-group ingroup)
+ (setq group (gnus-summary-search-group backward))
+ (gnus-summary-read-group group nil no-article sumbuf)
+ (while (and (string= gnus-newsgroup-name ingroup)
+ (bufferp sumbuf)
+ (buffer-name sumbuf)
+ (not (string= prevgroup (gnus-group-group-name))))
+ (set-buffer gnus-group-buffer)
+ (gnus-summary-read-group
+ (setq prevgroup (gnus-group-group-name))
+ nil no-article sumbuf))
+ (and (string= prevgroup (gnus-group-group-name))
+ ;; We have reached the final group in the group
+ ;; buffer.
+ (progn
+ (if (buffer-name sumbuf)
+ (progn
+ (set-buffer sumbuf)
+ (gnus-summary-exit)))))))))))
+
+(defun gnus-summary-prev-group (&optional no-article)
+ "Exit current newsgroup and then select previous unread newsgroup.
+If prefix argument NO-ARTICLE is non-nil, no article is selected initially."
+ (interactive "P")
+ (gnus-summary-next-group no-article nil t))
+
+;; Walking around summary lines.
+
+(defun gnus-summary-first-subject (&optional unread)
+ "Go to the first unread subject.
+If UNREAD is non-nil, go to the first unread article.
+Returns nil if there are no unread articles."
+ (interactive "P")
+ (prog1
+ (cond ((not unread)
+ (goto-char (point-min)))
+ ((gnus-goto-char
+ (text-property-any
+ (point-min) (point-max) 'gnus-mark gnus-unread-mark))
+ t)
+ (t
+ ;; There are no unread articles.
+ (gnus-message 3 "No more unread articles")
+ nil))
+ (gnus-summary-position-cursor)))
+
+(defun gnus-summary-next-subject (n &optional unread dont-display)
+ "Go to next N'th summary line.
+If N is negative, go to the previous N'th subject line.
+If UNREAD is non-nil, only unread articles are selected.
+The difference between N and the actual number of steps taken is
+returned."
+ (interactive "p")
+ (let ((backward (< n 0))
+ (n (abs n)))
+ (while (and (> n 0)
+ (gnus-summary-search-forward unread nil backward))
+ (setq n (1- n)))
+ (if (/= 0 n) (gnus-message 7 "No more%s articles"
+ (if unread " unread" "")))
+ (or dont-display
+ (progn
+ (gnus-summary-recenter)
+ (gnus-summary-position-cursor)))
+ n))
+
+(defun gnus-summary-next-unread-subject (n)
+ "Go to next N'th unread summary line."
+ (interactive "p")
+ (gnus-summary-next-subject n t))
+
+(defun gnus-summary-prev-subject (n &optional unread)
+ "Go to previous N'th summary line.
+If optional argument UNREAD is non-nil, only unread article is selected."
+ (interactive "p")
+ (gnus-summary-next-subject (- n) unread))
+
+(defun gnus-summary-prev-unread-subject (n)
+ "Go to previous N'th unread summary line."
+ (interactive "p")
+ (gnus-summary-next-subject (- n) t))
+
+(defun gnus-summary-goto-subject (article)
+ "Go the subject line of ARTICLE."
+ (interactive
+ (list
+ (string-to-int
+ (completing-read "Article number: "
+ (mapcar
+ (lambda (headers)
+ (list
+ (int-to-string (mail-header-number headers))))
+ gnus-newsgroup-headers)
+ nil 'require-match))))
+ (or article (error "No article number"))
+ (let ((b (point)))
+ (if (not (gnus-goto-char (text-property-any (point-min) (point-max)
+ 'gnus-number article)))
+ ()
+ (gnus-summary-show-thread)
+ ;; Skip dummy articles.
+ (if (eq (gnus-summary-article-mark) gnus-dummy-mark)
+ (forward-line 1))
+ (prog1
+ (if (not (eobp))
+ article
+ (goto-char b)
+ nil)
+ (gnus-summary-position-cursor)))))
+
+;; Walking around summary lines with displaying articles.
+
+(defun gnus-summary-expand-window (&optional arg)
+ "Make the summary buffer take up the entire Emacs frame.
+Given a prefix, will force an `article' buffer configuration."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (if arg
+ (gnus-configure-windows 'article 'force)
+ (gnus-configure-windows 'summary 'force)))
+
+(defun gnus-summary-display-article (article &optional all-header)
+ "Display ARTICLE in article buffer."
+ (gnus-set-global-variables)
+ (if (null article)
+ nil
+ (prog1
+ (gnus-article-prepare article all-header)
+ (gnus-summary-show-thread)
+ (if (eq (gnus-summary-article-mark) gnus-dummy-mark)
+ (progn
+ (forward-line 1)
+ (gnus-summary-position-cursor)))
+ (run-hooks 'gnus-select-article-hook)
+ (gnus-summary-recenter)
+ (gnus-summary-goto-subject article)
+ ;; Successfully display article.
+ (gnus-summary-update-line)
+ (gnus-article-set-window-start
+ (cdr (assq article gnus-newsgroup-bookmarks)))
+ t)))
+
+(defun gnus-summary-select-article (&optional all-headers force pseudo article)
+ "Select the current article.
+If ALL-HEADERS is non-nil, show all header fields. If FORCE is
+non-nil, the article will be re-fetched even if it already present in
+the article buffer. If PSEUDO is non-nil, pseudo-articles will also
+be displayed."
+ (and (not pseudo) (gnus-summary-pseudo-article)
+ (error "This is a pseudo-article."))
+ (let ((article (or article (gnus-summary-article-number)))
+ (all-headers (not (not all-headers))) ;Must be T or NIL.
+ did)
+ (prog1
+ (save-excursion
+ (set-buffer gnus-summary-buffer)
+ (if (or (null gnus-current-article)
+ (null gnus-article-current)
+ (null (get-buffer gnus-article-buffer))
+ (not (eq article (cdr gnus-article-current)))
+ (not (equal (car gnus-article-current) gnus-newsgroup-name))
+ force)
+ ;; The requested article is different from the current article.
+ (progn
+ (gnus-summary-display-article article all-headers)
+ (setq did article))
+ (if (or all-headers gnus-show-all-headers)
+ (gnus-article-show-all-headers))
+ nil))
+ (if did
+ (gnus-article-set-window-start
+ (cdr (assq article gnus-newsgroup-bookmarks)))))))
+
+(defun gnus-summary-set-current-mark (&optional current-mark)
+ "Obsolete function."
+ nil)
+
+(defun gnus-summary-next-article (&optional unread subject backward)
+ "Select the next article.
+If UNREAD, only unread articles are selected.
+If SUBJECT, only articles with SUBJECT are selected.
+If BACKWARD, the previous article is selected instead of the next."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (let (header)
+ (cond
+ ;; Is there such an article?
+ ((and (gnus-summary-search-forward unread subject backward)
+ (or (gnus-summary-display-article (gnus-summary-article-number))
+ (eq (gnus-summary-article-mark) gnus-canceled-mark)))
+ (gnus-summary-position-cursor))
+ ;; If not, we try the first unread, if that is wanted.
+ ((and subject
+ gnus-auto-select-same
+ (or (gnus-summary-first-unread-article)
+ (eq (gnus-summary-article-mark) gnus-canceled-mark)))
+ (gnus-summary-position-cursor)
+ (gnus-message 6 "Wrapped"))
+ ;; Try to get next/previous article not displayed in this group.
+ ((and gnus-auto-extend-newsgroup
+ (not unread) (not subject)
+ (setq header (gnus-more-header-forward backward)))
+ (gnus-extend-newsgroup header backward)
+ (let ((buffer-read-only nil))
+ (goto-char (if backward (point-min) (point-max)))
+ (gnus-summary-prepare-threads (list header)))
+ (gnus-summary-goto-article (if backward gnus-newsgroup-begin
+ gnus-newsgroup-end)))
+ ;; Go to next/previous group.
+ (t
+ (or (gnus-ephemeral-group-p gnus-newsgroup-name)
+ (gnus-summary-jump-to-group gnus-newsgroup-name))
+ (let ((cmd last-command-char)
+ (group
+ (if (eq gnus-keep-same-level 'best)
+ (gnus-summary-best-group gnus-newsgroup-name)
+ (gnus-summary-search-group backward gnus-keep-same-level))))
+ ;; For some reason, the group window gets selected. We change
+ ;; it back.
+ (select-window (get-buffer-window (current-buffer)))
+ ;; Keep just the event type of CMD.
+ ;(and (listp cmd) (setq cmd (car cmd)))
+ ;; Select next unread newsgroup automagically.
+ (cond
+ ((not gnus-auto-select-next)
+ (gnus-message 7 "No more%s articles" (if unread " unread" "")))
+ ((eq gnus-auto-select-next 'quietly)
+ ;; Select quietly.
+ (if (gnus-ephemeral-group-p gnus-newsgroup-name)
+ (gnus-summary-exit)
+ (gnus-message 7 "No more%s articles (%s)..."
+ (if unread " unread" "")
+ (if group (concat "selecting " group)
+ "exiting"))
+ (gnus-summary-next-group nil group backward)))
+ (t
+ (let ((keystrokes '(?\C-n ?\C-p))
+ key)
+ (while (or (null key) (memq key keystrokes))
+ (gnus-message
+ 7 "No more%s articles%s" (if unread " unread" "")
+ (if (and group
+ (not (gnus-ephemeral-group-p gnus-newsgroup-name)))
+ (format " (Type %s for %s [%s])"
+ (single-key-description cmd) group
+ (car (gnus-gethash group gnus-newsrc-hashtb)))
+ (format " (Type %s to exit %s)"
+ (single-key-description cmd)
+ gnus-newsgroup-name)))
+ ;; Confirm auto selection.
+ (let* ((event (read-char)))
+ (setq key (if (listp event) (car event) event))
+ (if (memq key keystrokes)
+ (let ((obuf (current-buffer)))
+ (switch-to-buffer gnus-group-buffer)
+ (and group
+ (gnus-group-jump-to-group group))
+ (condition-case ()
+ (execute-kbd-macro (char-to-string key))
+ (error (ding) nil))
+ (setq group (gnus-group-group-name))
+ (switch-to-buffer obuf)))))
+ (if (equal key cmd)
+ (if (or (not group)
+ (gnus-ephemeral-group-p gnus-newsgroup-name))
+ (gnus-summary-exit)
+ (gnus-summary-next-group nil group backward))
+ (execute-kbd-macro (char-to-string key)))))))))))
+
+(defun gnus-summary-next-unread-article ()
+ "Select unread article after current one."
+ (interactive)
+ (gnus-summary-next-article t (and gnus-auto-select-same
+ (gnus-summary-subject-string))))
+
+(defun gnus-summary-prev-article (&optional unread subject)
+ "Select the article after the current one.
+If UNREAD is non-nil, only unread articles are selected."
+ (interactive "P")
+ (gnus-summary-next-article unread subject t))
+
+(defun gnus-summary-prev-unread-article ()
+ "Select unred article before current one."
+ (interactive)
+ (gnus-summary-prev-article t (and gnus-auto-select-same
+ (gnus-summary-subject-string))))
+
+(defun gnus-summary-next-page (&optional lines circular)
+ "Show next page of selected article.
+If end of article, select next article.
+Argument LINES specifies lines to be scrolled up.
+If CIRCULAR is non-nil, go to the start of the article instead of
+instead of selecting the next article when reaching the end of the
+current article."
+ (interactive "P")
+ (setq gnus-summary-buffer (current-buffer))
+ (gnus-set-global-variables)
+ (let ((article (gnus-summary-article-number))
+ (endp nil))
+ (gnus-configure-windows 'article)
+ (if (or (null gnus-current-article)
+ (null gnus-article-current)
+ (/= article (cdr gnus-article-current))
+ (not (equal (car gnus-article-current) gnus-newsgroup-name)))
+ ;; Selected subject is different from current article's.
+ (gnus-summary-display-article article)
+ (gnus-eval-in-buffer-window
+ gnus-article-buffer
+ (setq endp (gnus-article-next-page lines)))
+ (if endp
+ (cond (circular
+ (gnus-summary-beginning-of-article))
+ (lines
+ (gnus-message 3 "End of message"))
+ ((null lines)
+ (gnus-summary-next-unread-article)))))
+ (gnus-summary-recenter)
+ (gnus-summary-position-cursor)))
+
+(defun gnus-summary-prev-page (&optional lines)
+ "Show previous page of selected article.
+Argument LINES specifies lines to be scrolled down."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (let ((article (gnus-summary-article-number)))
+ (gnus-configure-windows 'article)
+ (if (or (null gnus-current-article)
+ (null gnus-article-current)
+ (/= article (cdr gnus-article-current))
+ (not (equal (car gnus-article-current) gnus-newsgroup-name)))
+ ;; Selected subject is different from current article's.
+ (gnus-summary-display-article article)
+ (gnus-summary-recenter)
+ (gnus-eval-in-buffer-window gnus-article-buffer
+ (gnus-article-prev-page lines))))
+ (gnus-summary-position-cursor))
+
+(defun gnus-summary-scroll-up (lines)
+ "Scroll up (or down) one line current article.
+Argument LINES specifies lines to be scrolled up (or down if negative)."
+ (interactive "p")
+ (gnus-set-global-variables)
+ (gnus-configure-windows 'article)
+ (or (gnus-summary-select-article nil nil 'pseudo)
+ (gnus-eval-in-buffer-window
+ gnus-article-buffer
+ (cond ((> lines 0)
+ (if (gnus-article-next-page lines)
+ (gnus-message 3 "End of message")))
+ ((< lines 0)
+ (gnus-article-prev-page (- lines))))))
+ (gnus-summary-recenter)
+ (gnus-summary-position-cursor))
+
+(defun gnus-summary-next-same-subject ()
+ "Select next article which has the same subject as current one."
+ (interactive)
+ (gnus-set-global-variables)
+ (gnus-summary-next-article nil (gnus-summary-subject-string)))
+
+(defun gnus-summary-prev-same-subject ()
+ "Select previous article which has the same subject as current one."
+ (interactive)
+ (gnus-set-global-variables)
+ (gnus-summary-prev-article nil (gnus-summary-subject-string)))
+
+(defun gnus-summary-next-unread-same-subject ()
+ "Select next unread article which has the same subject as current one."
+ (interactive)
+ (gnus-set-global-variables)
+ (gnus-summary-next-article t (gnus-summary-subject-string)))
+
+(defun gnus-summary-prev-unread-same-subject ()
+ "Select previous unread article which has the same subject as current one."
+ (interactive)
+ (gnus-set-global-variables)
+ (gnus-summary-prev-article t (gnus-summary-subject-string)))
+
+(defun gnus-summary-first-unread-article ()
+ "Select the first unread article.
+Return nil if there are no unread articles."
+ (interactive)
+ (gnus-set-global-variables)
+ (prog1
+ (if (gnus-summary-first-subject t)
+ (progn
+ (gnus-summary-show-thread)
+ (gnus-summary-first-subject t)
+ (gnus-summary-display-article (gnus-summary-article-number))))
+ (gnus-summary-position-cursor)))
+
+(defun gnus-summary-best-unread-article ()
+ "Select the unread article with the highest score."
+ (interactive)
+ (gnus-set-global-variables)
+ (let ((best -1000000)
+ article score)
+ (save-excursion
+ (or (gnus-summary-first-subject t)
+ (error "No unread articles"))
+ (while
+ (and
+ (progn
+ (and (> (setq score (gnus-summary-article-score)) best)
+ (setq best score
+ article (gnus-summary-article-number)))
+ t)
+ (gnus-summary-search-subject nil t))))
+ (if (not article)
+ (error "No unread articles")
+ (gnus-summary-goto-article article))
+ (gnus-summary-position-cursor)))
+
+(defun gnus-summary-goto-article (article &optional all-headers)
+ "Fetch ARTICLE and display it if it exists.
+If ALL-HEADERS is non-nil, no header lines are hidden."
+ (interactive
+ (list
+ (string-to-int
+ (completing-read
+ "Article number: "
+ (mapcar (lambda (headers)
+ (list (int-to-string (mail-header-number headers))))
+ gnus-newsgroup-headers)
+ nil 'require-match))))
+ (prog1
+ (and (gnus-summary-goto-subject article)
+ (gnus-summary-display-article article all-headers))
+ (gnus-summary-position-cursor)))
+
+(defun gnus-summary-goto-last-article ()
+ "Go to the previously read article."
+ (interactive)
+ (prog1
+ (and gnus-last-article
+ (gnus-summary-goto-article gnus-last-article))
+ (gnus-summary-position-cursor)))
+
+(defun gnus-summary-pop-article (number)
+ "Pop one article off the history and go to the previous.
+NUMBER articles will be popped off."
+ (interactive "p")
+ (let (to)
+ (setq gnus-newsgroup-history
+ (cdr (setq to (nthcdr number gnus-newsgroup-history))))
+ (if to
+ (gnus-summary-goto-article (car to))
+ (error "Article history empty")))
+ (gnus-summary-position-cursor))
+
+;; Summary article oriented commands
+
+(defun gnus-summary-refer-parent-article (n)
+ "Refer parent article N times.
+The difference between N and the number of articles fetched is returned."
+ (interactive "p")
+ (gnus-set-global-variables)
+ (while
+ (and
+ (> n 0)
+ (let ((ref (mail-header-references (gnus-get-header-by-num
+ (gnus-summary-article-number)))))
+ (if (and ref (not (equal ref ""))
+ (string-match "<[^<>]*>[ \t]*$" ref))
+ (gnus-summary-refer-article
+ (substring ref (match-beginning 0) (match-end 0)))
+ (gnus-message 1 "No references in article %d"
+ (gnus-summary-article-number))
+ nil)))
+ (setq n (1- n)))
+ (gnus-summary-position-cursor)
+ n)
+
+(defun gnus-summary-refer-article (message-id)
+ "Refer article specified by MESSAGE-ID.
+NOTE: This command only works with newsgroups that use real or simulated NNTP."
+ (interactive "sMessage-ID: ")
+ (if (or (not (stringp message-id))
+ (zerop (length message-id)))
+ ()
+ ;; Construct the correct Message-ID if necessary.
+ ;; Suggested by tale@pawl.rpi.edu.
+ (or (string-match "^<" message-id)
+ (setq message-id (concat "<" message-id)))
+ (or (string-match ">$" message-id)
+ (setq message-id (concat message-id ">")))
+ (let ((header (car (gnus-gethash (downcase message-id)
+ gnus-newsgroup-dependencies))))
+ (if header
+ (or (gnus-summary-goto-article (mail-header-number header))
+ ;; The header has been read, but the article had been
+ ;; expunged, so we insert it again.
+ (progn
+ (gnus-summary-insert-line
+ nil header 0 nil gnus-read-mark nil nil
+ (mail-header-subject header))
+ (forward-line -1)
+ (mail-header-number header)))
+ (let ((gnus-override-method gnus-refer-article-method)
+ (gnus-ancient-mark gnus-read-mark)
+ (tmp-point (window-start
+ (get-buffer-window gnus-article-buffer)))
+ number tmp-buf)
+ (and gnus-refer-article-method
+ (gnus-check-server gnus-refer-article-method))
+ ;; Save the old article buffer.
+ (save-excursion
+ (set-buffer (gnus-article-setup-buffer))
+ (gnus-kill-buffer " *temp Article*")
+ (setq tmp-buf (rename-buffer " *temp Article*")))
+ (prog1
+ (if (gnus-article-prepare
+ message-id nil (gnus-read-header message-id))
+ (progn
+ (setq number (mail-header-number gnus-current-headers))
+ (gnus-rebuild-thread message-id)
+ (gnus-summary-goto-subject number)
+ (if (null gnus-use-full-window)
+ (progn
+ (delete-windows-on tmp-buf)
+ (gnus-configure-windows 'article 'force)))
+ (gnus-summary-recenter)
+ (gnus-article-set-window-start
+ (cdr (assq number gnus-newsgroup-bookmarks)))
+ (and gnus-visual
+ (run-hooks 'gnus-visual-mark-article-hook))
+ message-id)
+ ;; We restore the old article buffer.
+ (save-excursion
+ (kill-buffer gnus-article-buffer)
+ (set-buffer tmp-buf)
+ (rename-buffer gnus-article-buffer)
+ (let ((buffer-read-only nil))
+ (and tmp-point
+ (set-window-start (get-buffer-window (current-buffer))
+ tmp-point)))))))))))
+
+(defun gnus-summary-enter-digest-group ()
+ "Enter a digest group based on the current article."
+ (interactive)
+ (gnus-set-global-variables)
+ (gnus-summary-select-article)
+ ;; We do not want a narrowed article.
+ (gnus-summary-stop-page-breaking)
+ (let ((name (format "%s-%d"
+ (gnus-group-prefixed-name
+ gnus-newsgroup-name (list 'nndoc ""))
+ gnus-current-article))
+ (ogroup gnus-newsgroup-name)
+ (buf (current-buffer)))
+ (if (gnus-group-read-ephemeral-group
+ name (list 'nndoc name
+ (list 'nndoc-address (get-buffer gnus-article-buffer))
+ '(nndoc-article-type digest))
+ t)
+ (setcdr (nthcdr 4 (nth 2 (gnus-gethash name gnus-newsrc-hashtb)))
+ (list (list (cons 'to-group ogroup))))
+ (switch-to-buffer buf)
+ (gnus-set-global-variables)
+ (gnus-configure-windows 'summary)
+ (gnus-message 3 "Article not a digest?"))))
+
+(defun gnus-summary-isearch-article ()
+ "Do incremental search forward on current article."
+ (interactive)
+ (gnus-set-global-variables)
+ (gnus-summary-select-article)
+ (gnus-eval-in-buffer-window
+ gnus-article-buffer (isearch-forward)))
+
+(defun gnus-summary-search-article-forward (regexp &optional backward)
+ "Search for an article containing REGEXP forward.
+If BACKWARD, search backward instead."
+ (interactive
+ (list (read-string
+ (format "Search article %s (regexp%s): "
+ (if current-prefix-arg "backward" "forward")
+ (if gnus-last-search-regexp
+ (concat ", default " gnus-last-search-regexp)
+ "")))
+ current-prefix-arg))
+ (gnus-set-global-variables)
+ (if (string-equal regexp "")
+ (setq regexp (or gnus-last-search-regexp ""))
+ (setq gnus-last-search-regexp regexp))
+ (if (gnus-summary-search-article regexp backward)
+ (gnus-article-set-window-start
+ (cdr (assq (gnus-summary-article-number) gnus-newsgroup-bookmarks)))
+ (error "Search failed: \"%s\"" regexp)))
+
+(defun gnus-summary-search-article-backward (regexp)
+ "Search for an article containing REGEXP backward."
+ (interactive
+ (list (read-string
+ (format "Search article backward (regexp%s): "
+ (if gnus-last-search-regexp
+ (concat ", default " gnus-last-search-regexp)
+ "")))))
+ (gnus-summary-search-article-forward regexp 'backward))
+
+(defun gnus-summary-search-article (regexp &optional backward)
+ "Search for an article containing REGEXP.
+Optional argument BACKWARD means do search for backward.
+gnus-select-article-hook is not called during the search."
+ (let ((gnus-select-article-hook nil) ;Disable hook.
+ (gnus-mark-article-hook nil) ;Inhibit marking as read.
+ (re-search
+ (if backward
+ (function re-search-backward) (function re-search-forward)))
+ (found nil)
+ (last nil))
+ ;; Hidden thread subtrees must be searched for ,too.
+ (gnus-summary-show-all-threads)
+ (if (eobp) (forward-line -1))
+ ;; First of all, search current article.
+ ;; We don't want to read article again from NNTP server nor reset
+ ;; current point.
+ (gnus-summary-select-article)
+ (gnus-message 9 "Searching article: %d..." gnus-current-article)
+ (setq last gnus-current-article)
+ (gnus-eval-in-buffer-window
+ gnus-article-buffer
+ (save-restriction
+ (widen)
+ ;; Begin search from current point.
+ (setq found (funcall re-search regexp nil t))))
+ ;; Then search next articles.
+ (while (and (not found)
+ (gnus-summary-display-article
+ (gnus-summary-search-subject backward nil nil)))
+ (gnus-message 9 "Searching article: %d..." gnus-current-article)
+ (gnus-eval-in-buffer-window
+ gnus-article-buffer
+ (save-restriction
+ (widen)
+ (goto-char (if backward (point-max) (point-min)))
+ (setq found (funcall re-search regexp nil t)))))
+ (message "")
+ ;; Adjust article pointer.
+ (or (eq last gnus-current-article)
+ (setq gnus-last-article last))
+ ;; Return T if found such article.
+ found))
+
+(defun gnus-summary-execute-command (header regexp command &optional backward)
+ "Search forward for an article whose HEADER matches REGEXP and execute COMMAND.
+If HEADER is an empty string (or nil), the match is done on the entire
+article. If BACKWARD (the prefix) is non-nil, search backward instead."
+ (interactive
+ (list (let ((completion-ignore-case t))
+ (completing-read
+ "Header name: "
+ (mapcar (lambda (string) (list string))
+ '("Number" "Subject" "From" "Lines" "Date"
+ "Message-ID" "Xref" "References"))
+ nil 'require-match))
+ (read-string "Regexp: ")
+ (read-key-sequence "Command: ")
+ current-prefix-arg))
+ (gnus-set-global-variables)
+ ;; Hidden thread subtrees must be searched as well.
+ (gnus-summary-show-all-threads)
+ ;; We don't want to change current point nor window configuration.
+ (save-excursion
+ (save-window-excursion
+ (gnus-message 6 "Executing %s..." (key-description command))
+ ;; We'd like to execute COMMAND interactively so as to give arguments.
+ (gnus-execute header regexp
+ (` (lambda ()
+ (call-interactively '(, (key-binding command)))))
+ backward)
+ (gnus-message 6 "Executing %s...done" (key-description command)))))
+
+(defun gnus-summary-beginning-of-article ()
+ "Scroll the article back to the beginning."
+ (interactive)
+ (gnus-set-global-variables)
+ (gnus-summary-select-article)
+ (gnus-configure-windows 'article)
+ (gnus-eval-in-buffer-window
+ gnus-article-buffer
+ (widen)
+ (goto-char (point-min))
+ (and gnus-break-pages (gnus-narrow-to-page))))
+
+(defun gnus-summary-end-of-article ()
+ "Scroll to the end of the article."
+ (interactive)
+ (gnus-set-global-variables)
+ (gnus-summary-select-article)
+ (gnus-configure-windows 'article)
+ (gnus-eval-in-buffer-window
+ gnus-article-buffer
+ (widen)
+ (goto-char (point-max))
+ (recenter -3)
+ (and gnus-break-pages (gnus-narrow-to-page))))
+
+(defun gnus-summary-show-article ()
+ "Force re-fetching of the current article."
+ (interactive)
+ (gnus-set-global-variables)
+ (gnus-summary-select-article nil 'force)
+ (gnus-configure-windows 'article)
+ (gnus-summary-position-cursor))
+
+(defun gnus-summary-verbose-headers (&optional arg)
+ "Toggle permanent full header display.
+If ARG is a positive number, turn header display on.
+If ARG is a negative number, turn header display off."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (gnus-summary-toggle-header arg)
+ (setq gnus-show-all-headers
+ (cond ((or (not (numberp arg))
+ (zerop arg))
+ (not gnus-show-all-headers))
+ ((natnump arg)
+ t))))
+
+(defun gnus-summary-toggle-header (&optional arg)
+ "Show the headers if they are hidden, or hide them if they are shown.
+If ARG is a positive number, show the entire header.
+If ARG is a negative number, hide the unwanted header lines."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (save-excursion
+ (set-buffer gnus-article-buffer)
+ (let ((buffer-read-only nil))
+ (if (numberp arg)
+ (if (> arg 0) (remove-text-properties (point-min) (point-max)
+ gnus-hidden-properties)
+ (if (< arg 0) (run-hooks 'gnus-article-display-hook)))
+ (if (text-property-any (point-min) (point-max) 'invisible t)
+ (remove-text-properties
+ (point-min) (point-max) gnus-hidden-properties)
+ ;; We hide the headers. This song and dance act below is
+ ;; done because `gnus-have-all-headers' is buffer-local to
+ ;; the summary buffer, and we only want to temporarily
+ ;; change it in that buffer. Ugh.
+ (let ((have gnus-have-all-headers))
+ (save-excursion
+ (set-buffer gnus-summary-buffer)
+ (setq gnus-have-all-headers nil)
+ (save-excursion
+ (set-buffer gnus-article-buffer)
+ (run-hooks 'gnus-article-display-hook))
+ (setq gnus-have-all-headers have)))))
+ (set-window-point (get-buffer-window (current-buffer)) (point-min)))))
+
+(defun gnus-summary-show-all-headers ()
+ "Make all header lines visible."
+ (interactive)
+ (gnus-set-global-variables)
+ (gnus-article-show-all-headers))
+
+(defun gnus-summary-toggle-mime (&optional arg)
+ "Toggle MIME processing.
+If ARG is a positive number, turn MIME processing on."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (setq gnus-show-mime
+ (if (null arg) (not gnus-show-mime)
+ (> (prefix-numeric-value arg) 0)))
+ (gnus-summary-select-article t 'force))
+
+(defun gnus-summary-caesar-message (&optional arg)
+ "Caesar rotate the current article by 13.
+The numerical prefix specifies how manu places to rotate each letter
+forward."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (gnus-summary-select-article)
+ (let ((mail-header-separator ""))
+ (gnus-eval-in-buffer-window
+ gnus-article-buffer
+ (save-restriction
+ (widen)
+ (let ((start (window-start)))
+ (news-caesar-buffer-body arg)
+ (set-window-start (get-buffer-window (current-buffer)) start))))))
+
+(defun gnus-summary-stop-page-breaking ()
+ "Stop page breaking in the current article."
+ (interactive)
+ (gnus-set-global-variables)
+ (gnus-summary-select-article)
+ (gnus-eval-in-buffer-window gnus-article-buffer (widen)))
+
+;; Suggested by Brian Edmonds <bedmonds@prodigy.bc.ca>.
+
+(defun gnus-summary-move-article (&optional n to-newsgroup select-method)
+ "Move the current article to a different newsgroup.
+If N is a positive number, move the N next articles.
+If N is a negative number, move the N previous articles.
+If N is nil and any articles have been marked with the process mark,
+move those articles instead.
+If TO-NEWSGROUP is string, do not prompt for a newsgroup to move to.
+If SELECT-METHOD is symbol, do not move to a specific newsgroup, but
+re-spool using this method.
+For this function to work, both the current newsgroup and the
+newsgroup that you want to move to have to support the `request-move'
+and `request-accept' functions. (Ie. mail newsgroups at present.)"
+ (interactive "P")
+ (gnus-set-global-variables)
+ (or (gnus-check-backend-function 'request-move-article gnus-newsgroup-name)
+ (error "The current newsgroup does not support article moving"))
+ (let ((articles (gnus-summary-work-articles n))
+ (prefix (gnus-group-real-prefix gnus-newsgroup-name))
+ art-group to-method sel-met)
+ (if (and (not to-newsgroup) (not select-method))
+ (setq to-newsgroup
+ (completing-read
+ (format "Where do you want to move %s? %s"
+ (if (> (length articles) 1)
+ (format "these %d articles" (length articles))
+ "this article")
+ (if gnus-current-move-group
+ (format "(%s default) " gnus-current-move-group)
+ ""))
+ gnus-active-hashtb nil nil prefix)))
+ (if to-newsgroup
+ (progn
+ (if (or (string= to-newsgroup "") (string= to-newsgroup prefix))
+ (setq to-newsgroup (or gnus-current-move-group "")))
+ (or (gnus-gethash to-newsgroup gnus-active-hashtb)
+ (gnus-activate-group to-newsgroup)
+ (error "No such group: %s" to-newsgroup))
+ (setq gnus-current-move-group to-newsgroup)))
+ (setq to-method (if select-method (list select-method "")
+ (gnus-find-method-for-group to-newsgroup)))
+ (or (gnus-check-backend-function 'request-accept-article (car to-method))
+ (error "%s does not support article copying" (car to-method)))
+ (or (gnus-check-server to-method)
+ (error "Can't open server %s" (car to-method)))
+ (gnus-message 6 "Moving to %s: %s..."
+ (or select-method to-newsgroup) articles)
+ (while articles
+ (if (setq art-group
+ (gnus-request-move-article
+ (car articles) ; Article to move
+ gnus-newsgroup-name ; From newsgroup
+ (nth 1 (gnus-find-method-for-group
+ gnus-newsgroup-name)) ; Server
+ (list 'gnus-request-accept-article
+ (if select-method
+ (list 'quote select-method)
+ to-newsgroup)
+ (not (cdr articles))) ; Accept form
+ (not (cdr articles)))) ; Only save nov last time
+ (let* ((buffer-read-only nil)
+ (entry
+ (or
+ (gnus-gethash (car art-group) gnus-newsrc-hashtb)
+ (gnus-gethash
+ (gnus-group-prefixed-name
+ (car art-group)
+ (if select-method (list select-method "")
+ (gnus-find-method-for-group to-newsgroup)))
+ gnus-newsrc-hashtb)))
+ (info (nth 2 entry))
+ (article (car articles)))
+ (gnus-summary-goto-subject article)
+ (beginning-of-line)
+ (delete-region (point) (progn (forward-line 1) (point)))
+ ;; Update the group that has been moved to.
+ (if (not info)
+ () ; This group does not exist yet.
+ (if (not (memq article gnus-newsgroup-unreads))
+ (setcar (cdr (cdr info))
+ (gnus-add-to-range (nth 2 info)
+ (list (cdr art-group)))))
+ ;; Copy any marks over to the new group.
+ (let ((marks '((tick . gnus-newsgroup-marked)
+ (dormant . gnus-newsgroup-dormant)
+ (expire . gnus-newsgroup-expirable)
+ (bookmark . gnus-newsgroup-bookmarks)
+ (reply . gnus-newsgroup-replied)))
+ (to-article (cdr art-group)))
+ (while marks
+ (if (memq article (symbol-value (cdr (car marks))))
+ (gnus-add-marked-articles
+ (car info) (car (car marks)) (list to-article) info))
+ (setq marks (cdr marks)))))
+ ;; Update marks.
+ (setq gnus-newsgroup-marked (delq article gnus-newsgroup-marked))
+ (setq gnus-newsgroup-unreads (delq article gnus-newsgroup-unreads))
+ (setq gnus-newsgroup-dormant
+ (delq article gnus-newsgroup-dormant))
+ (setq gnus-newsgroup-reads
+ (cons (cons article gnus-canceled-mark)
+ gnus-newsgroup-reads)))
+ (gnus-message 1 "Couldn't move article %s" (car articles)))
+ (gnus-summary-remove-process-mark (car articles))
+ (setq articles (cdr articles)))
+ (gnus-set-mode-line 'summary)))
+
+(defun gnus-summary-respool-article (&optional n respool-method)
+ "Respool the current article.
+The article will be squeezed through the mail spooling process again,
+which means that it will be put in some mail newsgroup or other
+depending on `nnmail-split-methods'.
+If N is a positive number, respool the N next articles.
+If N is a negative number, respool the N previous articles.
+If N is nil and any articles have been marked with the process mark,
+respool those articles instead.
+
+Respooling can be done both from mail groups and \"real\" newsgroups.
+In the former case, the articles in question will be moved from the
+current group into whatever groups they are destined to. In the
+latter case, they will be copied into the relevant groups."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (let ((respool-methods (gnus-methods-using 'respool))
+ (methname
+ (symbol-name (car (gnus-find-method-for-group gnus-newsgroup-name)))))
+ (or respool-method
+ (setq respool-method
+ (completing-read
+ "What method do you want to use when respooling? "
+ respool-methods nil t methname)))
+ (or (string= respool-method "")
+ (if (assoc (symbol-name
+ (car (gnus-find-method-for-group gnus-newsgroup-name)))
+ respool-methods)
+ (gnus-summary-move-article n nil (intern respool-method))
+ (gnus-summary-copy-article n nil (intern respool-method))))))
+
+;; Suggested by gregj@unidata.com (Gregory J. Grubbs).
+(defun gnus-summary-copy-article (&optional n to-newsgroup select-method)
+ "Move the current article to a different newsgroup.
+If N is a positive number, move the N next articles.
+If N is a negative number, move the N previous articles.
+If N is nil and any articles have been marked with the process mark,
+move those articles instead.
+If TO-NEWSGROUP is string, do not prompt for a newsgroup to move to.
+If SELECT-METHOD is symbol, do not move to a specific newsgroup, but
+re-spool using this method.
+For this function to work, the newsgroup that you want to move to have
+to support the `request-move' and `request-accept'
+functions. (Ie. mail newsgroups at present.)"
+ (interactive "P")
+ (gnus-set-global-variables)
+ (let ((articles (gnus-summary-work-articles n))
+ (copy-buf (get-buffer-create "*copy work*"))
+ (prefix (gnus-group-real-prefix gnus-newsgroup-name))
+ art-group to-method)
+ (buffer-disable-undo copy-buf)
+ (if (and (not to-newsgroup) (not select-method))
+ (setq to-newsgroup
+ (completing-read
+ (format "Where do you want to copy %s? %s"
+ (if (> (length articles) 1)
+ (format "these %d articles" (length articles))
+ "this article")
+ (if gnus-current-move-group
+ (format "(%s default) " gnus-current-move-group)
+ ""))
+ gnus-active-hashtb nil nil prefix)))
+ (if to-newsgroup
+ (progn
+ (if (or (string= to-newsgroup "") (string= to-newsgroup prefix))
+ (setq to-newsgroup (or gnus-current-move-group "")))
+ (or (gnus-gethash to-newsgroup gnus-active-hashtb)
+ (gnus-activate-group to-newsgroup)
+ (error "No such group: %s" to-newsgroup))
+ (setq gnus-current-move-group to-newsgroup)))
+ (setq to-method (if select-method (list select-method "")
+ (gnus-find-method-for-group to-newsgroup)))
+ (or (gnus-check-backend-function 'request-accept-article (car to-method))
+ (error "%s does not support article copying" (car to-method)))
+ (or (gnus-check-server to-method)
+ (error "Can't open server %s" (car to-method)))
+ (while articles
+ (gnus-message 6 "Copying to %s: %s..."
+ (or select-method to-newsgroup) articles)
+ (if (setq art-group
+ (save-excursion
+ (set-buffer copy-buf)
+ (gnus-request-article-this-buffer
+ (car articles) gnus-newsgroup-name)
+ (gnus-request-accept-article
+ (if select-method (list 'quote select-method) to-newsgroup)
+ (not (cdr articles)))))
+ (let* ((entry
+ (or
+ (gnus-gethash (car art-group) gnus-newsrc-hashtb)
+ (gnus-gethash
+ (gnus-group-prefixed-name
+ (car art-group)
+ (if select-method (list select-method "")
+ (gnus-find-method-for-group to-newsgroup)))
+ gnus-newsrc-hashtb)))
+ (info (nth 2 entry))
+ (article (car articles)))
+ ;; We copy the info over to the new group.
+ (if (not info)
+ () ; This group does not exist (yet).
+ (if (not (memq article gnus-newsgroup-unreads))
+ (setcar (cdr (cdr info))
+ (gnus-add-to-range (nth 2 info)
+ (list (cdr art-group)))))
+ ;; Copy any marks over to the new group.
+ (let ((marks '((tick . gnus-newsgroup-marked)
+ (dormant . gnus-newsgroup-dormant)
+ (expire . gnus-newsgroup-expirable)
+ (bookmark . gnus-newsgroup-bookmarks)
+ (reply . gnus-newsgroup-replied)))
+ (to-article (cdr art-group)))
+ (while marks
+ (if (memq article (symbol-value (cdr (car marks))))
+ (gnus-add-marked-articles
+ (car info) (car (car marks)) (list to-article) info))
+ (setq marks (cdr marks))))))
+ (gnus-message 1 "Couldn't copy article %s" (car articles)))
+ (gnus-summary-remove-process-mark (car articles))
+ (setq articles (cdr articles)))
+ (kill-buffer copy-buf)))
+
+(defun gnus-summary-import-article (file)
+ "Import a random file into a mail newsgroup."
+ (interactive "fImport file: ")
+ (let ((group gnus-newsgroup-name)
+ atts)
+ (or (gnus-check-backend-function 'request-accept-article group)
+ (error "%s does not support article importing" group))
+ (or (file-readable-p file)
+ (not (file-regular-p file))
+ (error "Can't read %s" file))
+ (save-excursion
+ (set-buffer (get-buffer-create " *import file*"))
+ (buffer-disable-undo (current-buffer))
+ (erase-buffer)
+ (insert-file-contents file)
+ (goto-char (point-min))
+ (if (nnheader-article-p)
+ ()
+ (setq atts (file-attributes file))
+ (insert "From: " (read-string "From: ") "\n"
+ "Subject: " (read-string "Subject: ") "\n"
+ "Date: " (current-time-string (nth 5 atts)) "\n"
+ "Chars: " (int-to-string (nth 7 atts)) "\n\n"))
+ (gnus-request-accept-article group t)
+ (kill-buffer (current-buffer)))))
+
+(defun gnus-summary-expire-articles ()
+ "Expire all articles that are marked as expirable in the current group."
+ (interactive)
+ (if (not (gnus-check-backend-function
+ 'request-expire-articles gnus-newsgroup-name))
+ ()
+ (let* ((info (nth 2 (gnus-gethash gnus-newsgroup-name
+ gnus-newsrc-hashtb)))
+ (total (memq 'total-expire (nth 5 info)))
+ (expirable (if total
+ (gnus-list-of-read-articles gnus-newsgroup-name)
+ (setq gnus-newsgroup-expirable
+ (sort gnus-newsgroup-expirable '<))))
+ es)
+ (if (not expirable)
+ ()
+ (gnus-message 6 "Expiring articles...")
+ ;; The list of articles that weren't expired is returned.
+ (setq es (gnus-request-expire-articles expirable gnus-newsgroup-name))
+ (or total (setq gnus-newsgroup-expirable es))
+ ;; We go through the old list of expirable, and mark all
+ ;; really expired articles as nonexistent.
+ (or (eq es expirable) ;If nothing was expired, we don't mark.
+ (let ((gnus-use-cache nil))
+ (while expirable
+ (or (memq (car expirable) es)
+ (gnus-summary-mark-article
+ (car expirable) gnus-canceled-mark))
+ (setq expirable (cdr expirable)))))
+ (gnus-message 6 "Expiring articles...done")))))
+
+(defun gnus-summary-expire-articles-now ()
+ "Expunge all expirable articles in the current group.
+This means that *all* articles that are marked as expirable will be
+deleted forever, right now."
+ (interactive)
+ (or gnus-expert-user
+ (gnus-y-or-n-p
+ "Are you really, really, really sure you want to expunge? ")
+ (error "Phew!"))
+ (let ((nnmail-expiry-wait -1)
+ (nnmail-expiry-wait-function nil))
+ (gnus-summary-expire-articles)))
+
+;; Suggested by Jack Vinson <vinson@unagi.cis.upenn.edu>.
+(defun gnus-summary-delete-article (&optional n)
+ "Delete the N next (mail) articles.
+This command actually deletes articles. This is not a marking
+command. The article will disappear forever from you life, never to
+return.
+If N is negative, delete backwards.
+If N is nil and articles have been marked with the process mark,
+delete these instead."
+ (interactive "P")
+ (or (gnus-check-backend-function 'request-expire-articles
+ gnus-newsgroup-name)
+ (error "The current newsgroup does not support article deletion."))
+ ;; Compute the list of articles to delete.
+ (let ((articles (gnus-summary-work-articles n))
+ not-deleted)
+ (if (and gnus-novice-user
+ (not (gnus-y-or-n-p
+ (format "Do you really want to delete %s forever? "
+ (if (> (length articles) 1) "these articles"
+ "this article")))))
+ ()
+ ;; Delete the articles.
+ (setq not-deleted (gnus-request-expire-articles
+ articles gnus-newsgroup-name 'force))
+ (while articles
+ (gnus-summary-remove-process-mark (car articles))
+ ;; The backend might not have been able to delete the article
+ ;; after all.
+ (or (memq (car articles) not-deleted)
+ (gnus-summary-mark-article (car articles) gnus-canceled-mark))
+ (setq articles (cdr articles))))
+ (gnus-summary-position-cursor)
+ (gnus-set-mode-line 'summary)
+ not-deleted))
+
+(defun gnus-summary-edit-article (&optional force)
+ "Enter into a buffer and edit the current article.
+This will have permanent effect only in mail groups.
+If FORCE is non-nil, allow editing of articles even in read-only
+groups."
+ (interactive "P")
+ (or force
+ (not (gnus-group-read-only-p))
+ (error "The current newsgroup does not support article editing."))
+ (gnus-summary-select-article t)
+ (gnus-configure-windows 'article)
+ (select-window (get-buffer-window gnus-article-buffer))
+ (gnus-message 6 "C-c C-c to end edits")
+ (setq buffer-read-only nil)
+ (text-mode)
+ (use-local-map (copy-keymap (current-local-map)))
+ (local-set-key "\C-c\C-c" 'gnus-summary-edit-article-done)
+ (buffer-enable-undo)
+ (widen)
+ (goto-char (point-min))
+ (search-forward "\n\n" nil t))
+
+(defun gnus-summary-edit-article-done ()
+ "Make edits to the current article permanent."
+ (interactive)
+ (if (gnus-group-read-only-p)
+ (progn
+ (gnus-summary-edit-article-postpone)
+ (message "The current newsgroup does not support article editing.")
+ (ding))
+ (let ((buf (buffer-substring-no-properties (point-min) (point-max))))
+ (erase-buffer)
+ (insert buf)
+ (if (not (gnus-request-replace-article
+ (cdr gnus-article-current) (car gnus-article-current)
+ (current-buffer)))
+ (error "Couldn't replace article.")
+ (gnus-article-mode)
+ (use-local-map gnus-article-mode-map)
+ (setq buffer-read-only t)
+ (buffer-disable-undo (current-buffer))
+ (gnus-configure-windows 'summary))
+ (and gnus-visual (run-hooks 'gnus-visual-mark-article-hook)))))
+
+(defun gnus-summary-edit-article-postpone ()
+ "Postpone changes to the current article."
+ (interactive)
+ (gnus-article-mode)
+ (use-local-map gnus-article-mode-map)
+ (setq buffer-read-only t)
+ (buffer-disable-undo (current-buffer))
+ (gnus-configure-windows 'summary)
+ (and gnus-visual (run-hooks 'gnus-visual-mark-article-hook)))
+
+(defun gnus-summary-fancy-query ()
+ "Query where the fancy respool algorithm would put this article."
+ (interactive)
+ (gnus-summary-select-article)
+ (save-excursion
+ (set-buffer gnus-article-buffer)
+ (save-restriction
+ (goto-char (point-min))
+ (search-forward "\n\n")
+ (narrow-to-region (point-min) (point))
+ (pp-eval-expression (list 'quote (nnmail-split-fancy))))))
+
+;; Summary score commands.
+
+;; Suggested by boubaker@cenatls.cena.dgac.fr.
+
+(defun gnus-summary-raise-score (n)
+ "Raise the score of the current article by N."
+ (interactive "p")
+ (gnus-summary-set-score (+ (gnus-summary-article-score) n)))
+
+(defun gnus-summary-set-score (n)
+ "Set the score of the current article to N."
+ (interactive "p")
+ ;; Skip dummy header line.
+ (save-excursion
+ (gnus-summary-show-thread)
+ (if (eq (gnus-summary-article-mark) gnus-dummy-mark)
+ (forward-line 1))
+ (let ((buffer-read-only nil))
+ ;; Set score.
+ (gnus-summary-update-mark
+ (if (= n (or gnus-summary-default-score 0)) ?
+ (if (< n (or gnus-summary-default-score 0))
+ gnus-score-below-mark gnus-score-over-mark)) 'score))
+ (let* ((article (gnus-summary-article-number))
+ (score (assq article gnus-newsgroup-scored)))
+ (if score (setcdr score n)
+ (setq gnus-newsgroup-scored
+ (cons (cons article n) gnus-newsgroup-scored))))
+ (gnus-summary-update-line)))
+
+(defun gnus-summary-current-score ()
+ "Return the score of the current article."
+ (interactive)
+ (message "%s" (gnus-summary-article-score)))
+
+;; Summary marking commands.
+
+(defun gnus-summary-raise-same-subject-and-select (score)
+ "Raise articles which has the same subject with SCORE and select the next."
+ (interactive "p")
+ (let ((subject (gnus-summary-subject-string)))
+ (gnus-summary-raise-score score)
+ (while (gnus-summary-search-subject nil nil subject)
+ (gnus-summary-raise-score score))
+ (gnus-summary-next-article t)))
+
+(defun gnus-summary-raise-same-subject (score)
+ "Raise articles which has the same subject with SCORE."
+ (interactive "p")
+ (let ((subject (gnus-summary-subject-string)))
+ (gnus-summary-raise-score score)
+ (while (gnus-summary-search-subject nil nil subject)
+ (gnus-summary-raise-score score))
+ (gnus-summary-next-subject 1 t)))
+
+(defun gnus-score-default (level)
+ (if level (prefix-numeric-value level)
+ gnus-score-interactive-default-score))
+
+(defun gnus-summary-raise-thread (&optional score)
+ "Raise the score of the articles in the current thread with SCORE."
+ (interactive "P")
+ (setq score (gnus-score-default score))
+ (let (e)
+ (save-excursion
+ (let ((level (gnus-summary-thread-level)))
+ (gnus-summary-raise-score score)
+ (while (and (zerop (gnus-summary-next-subject 1 nil t))
+ (> (gnus-summary-thread-level) level))
+ (gnus-summary-raise-score score))
+ (setq e (point))))
+ (let ((gnus-summary-check-current t))
+ (or (zerop (gnus-summary-next-subject 1 t))
+ (goto-char e))))
+ (gnus-summary-recenter)
+ (gnus-summary-position-cursor)
+ (gnus-set-mode-line 'summary))
+
+(defun gnus-summary-lower-same-subject-and-select (score)
+ "Raise articles which has the same subject with SCORE and select the next."
+ (interactive "p")
+ (gnus-summary-raise-same-subject-and-select (- score)))
+
+(defun gnus-summary-lower-same-subject (score)
+ "Raise articles which has the same subject with SCORE."
+ (interactive "p")
+ (gnus-summary-raise-same-subject (- score)))
+
+(defun gnus-summary-lower-thread (&optional score)
+ "Lower score of articles in the current thread with SCORE."
+ (interactive "P")
+ (gnus-summary-raise-thread (- (1- (gnus-score-default score)))))
+
+(defun gnus-summary-kill-same-subject-and-select (&optional unmark)
+ "Mark articles which has the same subject as read, and then select the next.
+If UNMARK is positive, remove any kind of mark.
+If UNMARK is negative, tick articles."
+ (interactive "P")
+ (if unmark
+ (setq unmark (prefix-numeric-value unmark)))
+ (let ((count
+ (gnus-summary-mark-same-subject
+ (gnus-summary-subject-string) unmark)))
+ ;; Select next unread article. If auto-select-same mode, should
+ ;; select the first unread article.
+ (gnus-summary-next-article t (and gnus-auto-select-same
+ (gnus-summary-subject-string)))
+ (gnus-message 7 "%d article%s marked as %s"
+ count (if (= count 1) " is" "s are")
+ (if unmark "unread" "read"))))
+
+(defun gnus-summary-kill-same-subject (&optional unmark)
+ "Mark articles which has the same subject as read.
+If UNMARK is positive, remove any kind of mark.
+If UNMARK is negative, tick articles."
+ (interactive "P")
+ (if unmark
+ (setq unmark (prefix-numeric-value unmark)))
+ (let ((count
+ (gnus-summary-mark-same-subject
+ (gnus-summary-subject-string) unmark)))
+ ;; If marked as read, go to next unread subject.
+ (if (null unmark)
+ ;; Go to next unread subject.
+ (gnus-summary-next-subject 1 t))
+ (gnus-message 7 "%d articles are marked as %s"
+ count (if unmark "unread" "read"))))
+
+(defun gnus-summary-mark-same-subject (subject &optional unmark)
+ "Mark articles with same SUBJECT as read, and return marked number.
+If optional argument UNMARK is positive, remove any kinds of marks.
+If optional argument UNMARK is negative, mark articles as unread instead."
+ (let ((count 1))
+ (save-excursion
+ (cond
+ ((null unmark) ; Mark as read.
+ (while (and
+ (progn
+ (gnus-summary-mark-article-as-read gnus-killed-mark)
+ (gnus-summary-show-thread) t)
+ (gnus-summary-search-forward nil subject))
+ (setq count (1+ count))))
+ ((> unmark 0) ; Tick.
+ (while (and
+ (progn
+ (gnus-summary-mark-article-as-unread gnus-ticked-mark)
+ (gnus-summary-show-thread) t)
+ (gnus-summary-search-forward nil subject))
+ (setq count (1+ count))))
+ (t ; Mark as unread.
+ (while (and
+ (progn
+ (gnus-summary-mark-article-as-unread gnus-unread-mark)
+ (gnus-summary-show-thread) t)
+ (gnus-summary-search-forward nil subject))
+ (setq count (1+ count)))))
+ (gnus-set-mode-line 'summary)
+ ;; Return the number of marked articles.
+ count)))
+
+(defun gnus-summary-mark-as-processable (n &optional unmark)
+ "Set the process mark on the next N articles.
+If N is negative, mark backward instead. If UNMARK is non-nil, remove
+the process mark instead. The difference between N and the actual
+number of articles marked is returned."
+ (interactive "p")
+ (let ((backward (< n 0))
+ (n (abs n)))
+ (while (and
+ (> n 0)
+ (if unmark
+ (gnus-summary-remove-process-mark
+ (gnus-summary-article-number))
+ (gnus-summary-set-process-mark (gnus-summary-article-number)))
+ (zerop (gnus-summary-next-subject (if backward -1 1) nil t)))
+ (setq n (1- n)))
+ (if (/= 0 n) (gnus-message 7 "No more articles"))
+ (gnus-summary-recenter)
+ (gnus-summary-position-cursor)
+ n))
+
+(defun gnus-summary-unmark-as-processable (n)
+ "Remove the process mark from the next N articles.
+If N is negative, mark backward instead. The difference between N and
+the actual number of articles marked is returned."
+ (interactive "p")
+ (gnus-summary-mark-as-processable n t))
+
+(defun gnus-summary-unmark-all-processable ()
+ "Remove the process mark from all articles."
+ (interactive)
+ (save-excursion
+ (while gnus-newsgroup-processable
+ (gnus-summary-remove-process-mark (car gnus-newsgroup-processable))))
+ (gnus-summary-position-cursor))
+
+(defun gnus-summary-mark-as-expirable (n)
+ "Mark N articles forward as expirable.
+If N is negative, mark backward instead. The difference between N and
+the actual number of articles marked is returned."
+ (interactive "p")
+ (gnus-summary-mark-forward n gnus-expirable-mark))
+
+(defun gnus-summary-mark-article-as-replied (article)
+ "Mark ARTICLE replied and update the summary line."
+ (setq gnus-newsgroup-replied (cons article gnus-newsgroup-replied))
+ (let ((buffer-read-only nil))
+ (if (gnus-summary-goto-subject article)
+ (progn
+ (gnus-summary-update-mark gnus-replied-mark 'replied)
+ t))))
+
+(defun gnus-summary-set-bookmark (article)
+ "Set a bookmark in current article."
+ (interactive (list (gnus-summary-article-number)))
+ (if (or (not (get-buffer gnus-article-buffer))
+ (not gnus-current-article)
+ (not gnus-article-current)
+ (not (equal gnus-newsgroup-name (car gnus-article-current))))
+ (error "No current article selected"))
+ ;; Remove old bookmark, if one exists.
+ (let ((old (assq article gnus-newsgroup-bookmarks)))
+ (if old (setq gnus-newsgroup-bookmarks
+ (delq old gnus-newsgroup-bookmarks))))
+ ;; Set the new bookmark, which is on the form
+ ;; (article-number . line-number-in-body).
+ (setq gnus-newsgroup-bookmarks
+ (cons
+ (cons article
+ (save-excursion
+ (set-buffer gnus-article-buffer)
+ (count-lines
+ (min (point)
+ (save-excursion
+ (goto-char (point-min))
+ (search-forward "\n\n" nil t)
+ (point)))
+ (point))))
+ gnus-newsgroup-bookmarks))
+ (gnus-message 6 "A bookmark has been added to the current article."))
+
+(defun gnus-summary-remove-bookmark (article)
+ "Remove the bookmark from the current article."
+ (interactive (list (gnus-summary-article-number)))
+ ;; Remove old bookmark, if one exists.
+ (let ((old (assq article gnus-newsgroup-bookmarks)))
+ (if old
+ (progn
+ (setq gnus-newsgroup-bookmarks
+ (delq old gnus-newsgroup-bookmarks))
+ (gnus-message 6 "Removed bookmark."))
+ (gnus-message 6 "No bookmark in current article."))))
+
+;; Suggested by Daniel Quinlan <quinlan@best.com>.
+(defun gnus-summary-mark-as-dormant (n)
+ "Mark N articles forward as dormant.
+If N is negative, mark backward instead. The difference between N and
+the actual number of articles marked is returned."
+ (interactive "p")
+ (gnus-summary-mark-forward n gnus-dormant-mark))
+
+(defun gnus-summary-set-process-mark (article)
+ "Set the process mark on ARTICLE and update the summary line."
+ (setq gnus-newsgroup-processable
+ (cons article
+ (delq article gnus-newsgroup-processable)))
+ (let ((buffer-read-only nil))
+ (if (gnus-summary-goto-subject article)
+ (progn
+ (gnus-summary-show-thread)
+ (and (eq (gnus-summary-article-mark) gnus-dummy-mark)
+ (forward-line 1))
+ (gnus-summary-update-mark gnus-process-mark 'replied)
+ t))))
+
+(defun gnus-summary-remove-process-mark (article)
+ "Remove the process mark from ARTICLE and update the summary line."
+ (setq gnus-newsgroup-processable (delq article gnus-newsgroup-processable))
+ (let ((buffer-read-only nil))
+ (if (gnus-summary-goto-subject article)
+ (progn
+ (gnus-summary-show-thread)
+ (and (eq (gnus-summary-article-mark) gnus-dummy-mark)
+ (forward-line 1))
+ (gnus-summary-update-mark ? 'replied)
+ (if (memq article gnus-newsgroup-replied)
+ (gnus-summary-update-mark gnus-replied-mark 'replied))
+ t))))
+
+(defun gnus-summary-mark-forward (n &optional mark no-expire)
+ "Mark N articles as read forwards.
+If N is negative, mark backwards instead.
+Mark with MARK. If MARK is ? , ?! or ??, articles will be
+marked as unread.
+The difference between N and the actual number of articles marked is
+returned."
+ (interactive "p")
+ (gnus-set-global-variables)
+ (let ((backward (< n 0))
+ (gnus-summary-goto-unread
+ (and gnus-summary-goto-unread
+ (not (memq mark (list gnus-unread-mark
+ gnus-ticked-mark gnus-dormant-mark)))))
+ (n (abs n))
+ (mark (or mark gnus-del-mark)))
+ (while (and (> n 0)
+ (gnus-summary-mark-article nil mark no-expire)
+ (zerop (gnus-summary-next-subject
+ (if backward -1 1) gnus-summary-goto-unread t)))
+ (setq n (1- n)))
+ (if (/= 0 n) (gnus-message 7 "No more %sarticles" (if mark "" "unread ")))
+ (gnus-summary-recenter)
+ (gnus-summary-position-cursor)
+ (gnus-set-mode-line 'summary)
+ n))
+
+(defun gnus-summary-mark-article-as-read (mark)
+ "Mark the current article quickly as read with MARK."
+ (let ((article (gnus-summary-article-number)))
+ (setq gnus-newsgroup-unreads (delq article gnus-newsgroup-unreads))
+ (setq gnus-newsgroup-marked (delq article gnus-newsgroup-marked))
+ (setq gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant))
+ (setq gnus-newsgroup-reads
+ (cons (cons article mark) gnus-newsgroup-reads))
+ ;; Possibly remove from cache, if that is used.
+ (and gnus-use-cache (gnus-cache-enter-remove-article article))
+ (and gnus-newsgroup-auto-expire
+ (or (= mark gnus-killed-mark) (= mark gnus-del-mark)
+ (= mark gnus-catchup-mark) (= mark gnus-low-score-mark)
+ (= mark gnus-read-mark))
+ (progn
+ (setq mark gnus-expirable-mark)
+ (setq gnus-newsgroup-expirable
+ (cons article gnus-newsgroup-expirable))))
+ (while (eq (gnus-summary-article-mark) gnus-dummy-mark)
+ (forward-line 1))
+ ;; Fix the mark.
+ (gnus-summary-update-mark mark 'unread)
+ t))
+
+(defun gnus-summary-mark-article-as-unread (mark)
+ "Mark the current article quickly as unread with MARK."
+ (let ((article (gnus-summary-article-number)))
+ (or (memq article gnus-newsgroup-unreads)
+ (setq gnus-newsgroup-unreads (cons article gnus-newsgroup-unreads)))
+ (setq gnus-newsgroup-marked (delq article gnus-newsgroup-marked))
+ (setq gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant))
+ (setq gnus-newsgroup-expirable (delq article gnus-newsgroup-expirable))
+ (setq gnus-newsgroup-reads
+ (delq (assq article gnus-newsgroup-reads)
+ gnus-newsgroup-reads))
+ (if (= mark gnus-ticked-mark)
+ (setq gnus-newsgroup-marked (cons article gnus-newsgroup-marked)))
+ (if (= mark gnus-dormant-mark)
+ (setq gnus-newsgroup-dormant (cons article gnus-newsgroup-dormant)))
+
+ ;; See whether the article is to be put in the cache.
+ (and gnus-use-cache
+ (vectorp (gnus-get-header-by-num article))
+ (save-excursion
+ (gnus-cache-possibly-enter-article
+ gnus-newsgroup-name article
+ (gnus-get-header-by-num article)
+ (= mark gnus-ticked-mark)
+ (= mark gnus-dormant-mark) (= mark gnus-unread-mark))))
+
+ (while (eq (gnus-summary-article-mark) gnus-dummy-mark)
+ (forward-line 1))
+ ;; Fix the mark.
+ (gnus-summary-update-mark mark 'unread)
+ t))
+
+(defun gnus-summary-mark-article (&optional article mark no-expire)
+ "Mark ARTICLE with MARK. MARK can be any character.
+Four MARK strings are reserved: `? ' (unread), `?!' (ticked), `??'
+(dormant) and `?E' (expirable).
+If MARK is nil, then the default character `?D' is used.
+If ARTICLE is nil, then the article on the current line will be
+marked."
+ (and (stringp mark)
+ (setq mark (aref mark 0)))
+ ;; If no mark is given, then we check auto-expiring.
+ (and (not no-expire)
+ gnus-newsgroup-auto-expire
+ (or (not mark)
+ (and (numberp mark)
+ (or (= mark gnus-killed-mark) (= mark gnus-del-mark)
+ (= mark gnus-catchup-mark) (= mark gnus-low-score-mark)
+ (= mark gnus-read-mark))))
+ (setq mark gnus-expirable-mark))
+ (let* ((mark (or mark gnus-del-mark))
+ (article (or article (gnus-summary-article-number))))
+ (or article (error "No article on current line"))
+ (if (or (= mark gnus-unread-mark)
+ (= mark gnus-ticked-mark)
+ (= mark gnus-dormant-mark))
+ (gnus-mark-article-as-unread article mark)
+ (gnus-mark-article-as-read article mark))
+
+ ;; See whether the article is to be put in the cache.
+ (and gnus-use-cache
+ (not (= mark gnus-canceled-mark))
+ (vectorp (gnus-get-header-by-num article))
+ (save-excursion
+ (gnus-cache-possibly-enter-article
+ gnus-newsgroup-name article
+ (gnus-get-header-by-num article)
+ (= mark gnus-ticked-mark)
+ (= mark gnus-dormant-mark) (= mark gnus-unread-mark))))
+
+ (if (gnus-summary-goto-subject article)
+ (let ((buffer-read-only nil))
+ (gnus-summary-show-thread)
+ (and (eq (gnus-summary-article-mark) gnus-dummy-mark)
+ (forward-line 1))
+ ;; Fix the mark.
+ (gnus-summary-update-mark mark 'unread)
+ t))))
+
+(defun gnus-summary-update-mark (mark type)
+ (beginning-of-line)
+ (let ((forward (cdr (assq type gnus-summary-mark-positions)))
+ (buffer-read-only nil)
+ plist)
+ (if (not forward)
+ ()
+ (forward-char forward)
+ (setq plist (text-properties-at (point)))
+ (delete-char 1)
+ (insert mark)
+ (and plist (add-text-properties (1- (point)) (point) plist))
+ (and (eq type 'unread)
+ (progn
+ (add-text-properties (1- (point)) (point) (list 'gnus-mark mark))
+ (gnus-summary-update-line (eq mark gnus-unread-mark)))))))
+
+(defun gnus-mark-article-as-read (article &optional mark)
+ "Enter ARTICLE in the pertinent lists and remove it from others."
+ ;; Make the article expirable.
+ (let ((mark (or mark gnus-del-mark)))
+ (if (= mark gnus-expirable-mark)
+ (setq gnus-newsgroup-expirable (cons article gnus-newsgroup-expirable))
+ (setq gnus-newsgroup-expirable (delq article gnus-newsgroup-expirable)))
+ ;; Remove from unread and marked lists.
+ (setq gnus-newsgroup-unreads (delq article gnus-newsgroup-unreads))
+ (setq gnus-newsgroup-marked (delq article gnus-newsgroup-marked))
+ (setq gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant))
+ (setq gnus-newsgroup-reads
+ (cons (cons article mark) gnus-newsgroup-reads))
+ ;; Possibly remove from cache, if that is used.
+ (and gnus-use-cache (gnus-cache-enter-remove-article article))))
+
+(defun gnus-mark-article-as-unread (article &optional mark)
+ "Enter ARTICLE in the pertinent lists and remove it from others."
+ (let ((mark (or mark gnus-ticked-mark)))
+ ;; Add to unread list.
+ (or (memq article gnus-newsgroup-unreads)
+ (setq gnus-newsgroup-unreads (cons article gnus-newsgroup-unreads)))
+ (setq gnus-newsgroup-marked (delq article gnus-newsgroup-marked))
+ (setq gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant))
+ (setq gnus-newsgroup-expirable (delq article gnus-newsgroup-expirable))
+ (setq gnus-newsgroup-reads
+ (delq (assq article gnus-newsgroup-reads)
+ gnus-newsgroup-reads))
+ (if (= mark gnus-ticked-mark)
+ (setq gnus-newsgroup-marked (cons article gnus-newsgroup-marked)))
+ (if (= mark gnus-dormant-mark)
+ (setq gnus-newsgroup-dormant (cons article gnus-newsgroup-dormant)))))
+
+(defalias 'gnus-summary-mark-as-unread-forward
+ 'gnus-summary-tick-article-forward)
+(make-obsolete 'gnus-summary-mark-as-unread-forward
+ 'gnus-summary-tick-article-forward)
+(defun gnus-summary-tick-article-forward (n)
+ "Tick N articles forwards.
+If N is negative, tick backwards instead.
+The difference between N and the number of articles ticked is returned."
+ (interactive "p")
+ (gnus-summary-mark-forward n gnus-ticked-mark))
+
+(defalias 'gnus-summary-mark-as-unread-backward
+ 'gnus-summary-tick-article-backward)
+(make-obsolete 'gnus-summary-mark-as-unread-backward
+ 'gnus-summary-tick-article-backward)
+(defun gnus-summary-tick-article-backward (n)
+ "Tick N articles backwards.
+The difference between N and the number of articles ticked is returned."
+ (interactive "p")
+ (gnus-summary-mark-forward (- n) gnus-ticked-mark))
+
+(defalias 'gnus-summary-mark-as-unread 'gnus-summary-tick-article)
+(make-obsolete 'gnus-summary-mark-as-unread 'gnus-summary-tick-article)
+(defun gnus-summary-tick-article (&optional article clear-mark)
+ "Mark current article as unread.
+Optional 1st argument ARTICLE specifies article number to be marked as unread.
+Optional 2nd argument CLEAR-MARK remove any kinds of mark."
+ (gnus-summary-mark-article article (if clear-mark gnus-unread-mark
+ gnus-ticked-mark)))
+
+(defun gnus-summary-mark-as-read-forward (n)
+ "Mark N articles as read forwards.
+If N is negative, mark backwards instead.
+The difference between N and the actual number of articles marked is
+returned."
+ (interactive "p")
+ (gnus-summary-mark-forward n gnus-del-mark t))
+
+(defun gnus-summary-mark-as-read-backward (n)
+ "Mark the N articles as read backwards.
+The difference between N and the actual number of articles marked is
+returned."
+ (interactive "p")
+ (gnus-summary-mark-forward (- n) gnus-del-mark t))
+
+(defun gnus-summary-mark-as-read (&optional article mark)
+ "Mark current article as read.
+ARTICLE specifies the article to be marked as read.
+MARK specifies a string to be inserted at the beginning of the line."
+ (gnus-summary-mark-article article mark))
+
+(defun gnus-summary-clear-mark-forward (n)
+ "Clear marks from N articles forward.
+If N is negative, clear backward instead.
+The difference between N and the number of marks cleared is returned."
+ (interactive "p")
+ (gnus-summary-mark-forward n gnus-unread-mark))
+
+(defun gnus-summary-clear-mark-backward (n)
+ "Clear marks from N articles backward.
+The difference between N and the number of marks cleared is returned."
+ (interactive "p")
+ (gnus-summary-mark-forward (- n) gnus-unread-mark))
+
+(defun gnus-summary-mark-unread-as-read ()
+ "Intended to be used by `gnus-summary-mark-article-hook'."
+ (or (memq gnus-current-article gnus-newsgroup-marked)
+ (memq gnus-current-article gnus-newsgroup-dormant)
+ (memq gnus-current-article gnus-newsgroup-expirable)
+ (gnus-summary-mark-article gnus-current-article gnus-read-mark)))
+
+(defun gnus-summary-mark-region-as-read (point mark all)
+ "Mark all unread articles between point and mark as read.
+If given a prefix, mark all articles between point and mark as read,
+even ticked and dormant ones."
+ (interactive "r\nP")
+ (save-excursion
+ (goto-char point)
+ (beginning-of-line)
+ (while (and
+ (< (point) mark)
+ (progn
+ (and
+ (or all
+ (and
+ (not (memq (gnus-summary-article-number)
+ gnus-newsgroup-marked))
+ (not (memq (gnus-summary-article-number)
+ gnus-newsgroup-dormant))))
+ (gnus-summary-mark-article
+ (gnus-summary-article-number) gnus-del-mark))
+ t)
+ (zerop (forward-line 1))))))
+
+;; Fix by Per Abrahamsen <amanda@iesd.auc.dk>.
+(defalias 'gnus-summary-delete-marked-as-read
+ 'gnus-summary-remove-lines-marked-as-read)
+(make-obsolete 'gnus-summary-delete-marked-as-read
+ 'gnus-summary-remove-lines-marked-as-read)
+(defun gnus-summary-remove-lines-marked-as-read ()
+ "Remove lines that are marked as read."
+ (interactive)
+ (gnus-summary-remove-lines-marked-with
+ (concat (mapconcat
+ (lambda (char) (char-to-string (symbol-value char)))
+ '(gnus-del-mark gnus-read-mark gnus-ancient-mark
+ gnus-killed-mark gnus-kill-file-mark
+ gnus-low-score-mark gnus-expirable-mark
+ gnus-canceled-mark gnus-catchup-mark)
+ ""))))
+
+(defalias 'gnus-summary-delete-marked-with
+ 'gnus-summary-remove-lines-marked-with)
+(make-obsolete 'gnus-summary-delete-marked-with
+ 'gnus-summary-remove-lines-marked-with)
+;; Rewrite by Daniel Quinlan <quinlan@best.com>.
+(defun gnus-summary-remove-lines-marked-with (marks)
+ "Remove lines that are marked with MARKS (e.g. \"DK\")."
+ (interactive "sMarks: ")
+ ;; Fix by Sudish Joseph <joseph@cis.ohio-state.edu>.
+ (gnus-set-global-variables)
+ (let ((buffer-read-only nil)
+ (orig-article
+ (let ((gnus-summary-check-current t))
+ (gnus-summary-search-forward t)
+ (gnus-summary-article-number)))
+ (marks (concat "^[" marks "]")))
+ (goto-char (point-min))
+ (if gnus-newsgroup-adaptive
+ (gnus-score-remove-lines-adaptive marks)
+ (while (re-search-forward marks nil t)
+ (gnus-delete-line)))
+ ;; If we use dummy roots, we have to do an additional sweep over
+ ;; the buffer.
+ (if (not (eq gnus-summary-make-false-root 'dummy))
+ ()
+ (goto-char (point-min))
+ (setq marks (concat "^[" (char-to-string gnus-dummy-mark) "]"))
+ (while (re-search-forward marks nil t)
+ (if (gnus-subject-equal
+ (gnus-summary-subject-string)
+ (progn
+ (forward-line 1)
+ (gnus-summary-subject-string)))
+ ()
+ (forward-line -1)
+ (gnus-delete-line))))
+ (or (zerop (buffer-size))
+ (gnus-summary-goto-subject orig-article)
+ (if (eobp)
+ (gnus-summary-prev-subject 1)
+ (gnus-summary-position-cursor)))))
+
+(defun gnus-summary-expunge-below (&optional score)
+ "Remove articles with score less than SCORE."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (setq score (if score
+ (prefix-numeric-value score)
+ (or gnus-summary-default-score 0)))
+ (save-excursion
+ (set-buffer gnus-summary-buffer)
+ (goto-char (point-min))
+ (let ((buffer-read-only nil)
+ beg)
+ (while (not (eobp))
+ (if (< (gnus-summary-article-score) score)
+ (progn
+ (setq beg (point))
+ (forward-line 1)
+ (delete-region beg (point)))
+ (forward-line 1)))
+ ;; Adjust point.
+ (or (zerop (buffer-size))
+ (if (eobp)
+ (gnus-summary-prev-subject 1)
+ (gnus-summary-position-cursor))))))
+
+(defun gnus-summary-mark-below (score mark)
+ "Mark articles with score less than SCORE with MARK."
+ (interactive "P\ncMark: ")
+ (gnus-set-global-variables)
+ (setq score (if score
+ (prefix-numeric-value score)
+ (or gnus-summary-default-score 0)))
+ (save-excursion
+ (set-buffer gnus-summary-buffer)
+ (goto-char (point-min))
+ (while (not (eobp))
+ (and (< (gnus-summary-article-score) score)
+ (gnus-summary-mark-article nil mark))
+ (forward-line 1))))
+
+(defun gnus-summary-kill-below (&optional score)
+ "Mark articles with score below SCORE as read."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (gnus-summary-mark-below score gnus-killed-mark))
+
+(defun gnus-summary-clear-above (&optional score)
+ "Clear all marks from articles with score above SCORE."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (gnus-summary-mark-above score gnus-unread-mark))
+
+(defun gnus-summary-tick-above (&optional score)
+ "Tick all articles with score above SCORE."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (gnus-summary-mark-above score gnus-ticked-mark))
+
+(defun gnus-summary-mark-above (score mark)
+ "Mark articles with score over SCORE with MARK."
+ (interactive "P\ncMark: ")
+ (gnus-set-global-variables)
+ (setq score (if score
+ (prefix-numeric-value score)
+ (or gnus-summary-default-score 0)))
+ (save-excursion
+ (set-buffer gnus-summary-buffer)
+ (goto-char (point-min))
+ (while (not (eobp))
+ (if (> (gnus-summary-article-score) score)
+ (progn
+ (gnus-summary-mark-article nil mark)
+ (forward-line 1))
+ (forward-line 1)))))
+
+;; Suggested by Daniel Quinlan <quinlan@best.com>.
+(defun gnus-summary-show-all-expunged ()
+ "Display all the hidden articles that were expunged for low scores."
+ (interactive)
+ (gnus-set-global-variables)
+ (let ((buffer-read-only nil))
+ (let ((scored gnus-newsgroup-scored)
+ headers h)
+ (while scored
+ (or (gnus-summary-goto-subject (car (car scored)))
+ (and (setq h (gnus-get-header-by-num (car (car scored))))
+ (< (cdr (car scored)) gnus-summary-expunge-below)
+ (setq headers (cons h headers))))
+ (setq scored (cdr scored)))
+ (or headers (error "No expunged articles hidden."))
+ (goto-char (point-min))
+ (save-excursion
+ (gnus-summary-update-lines
+ (point)
+ (progn
+ (gnus-summary-prepare-unthreaded (nreverse headers))
+ (point)))))
+ (goto-char (point-min))
+ (gnus-summary-position-cursor)))
+
+(defun gnus-summary-show-all-dormant ()
+ "Display all the hidden articles that are marked as dormant."
+ (interactive)
+ (gnus-set-global-variables)
+ (let ((buffer-read-only nil))
+ (let ((dormant gnus-newsgroup-dormant)
+ headers h)
+ (while dormant
+ (or (gnus-summary-goto-subject (car dormant))
+ (and (setq h (gnus-get-header-by-num (car dormant)))
+ (setq headers (cons h headers))))
+ (setq dormant (cdr dormant)))
+ (or headers (error "No dormant articles hidden."))
+ (goto-char (point-min))
+ (save-excursion
+ (gnus-summary-update-lines
+ (point)
+ (progn
+ (gnus-summary-prepare-unthreaded (nreverse headers))
+ (point)))))
+ (goto-char (point-min))
+ (gnus-summary-position-cursor)))
+
+(defun gnus-summary-hide-all-dormant ()
+ "Hide all dormant articles."
+ (interactive)
+ (gnus-set-global-variables)
+ (gnus-summary-remove-lines-marked-with (char-to-string gnus-dormant-mark))
+ (gnus-summary-position-cursor))
+
+(defun gnus-summary-catchup (&optional all quietly to-here not-mark)
+ "Mark all articles not marked as unread in this newsgroup as read.
+If prefix argument ALL is non-nil, all articles are marked as read.
+If QUIETLY is non-nil, no questions will be asked.
+If TO-HERE is non-nil, it should be a point in the buffer. All
+articles before this point will be marked as read.
+The number of articles marked as read is returned."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (prog1
+ (if (or quietly
+ (not gnus-interactive-catchup) ;Without confirmation?
+ gnus-expert-user
+ (gnus-y-or-n-p
+ (if all
+ "Mark absolutely all articles as read? "
+ "Mark all unread articles as read? ")))
+ (if (and not-mark
+ (not gnus-newsgroup-adaptive)
+ (not gnus-newsgroup-auto-expire))
+ (progn
+ (and all (setq gnus-newsgroup-marked nil
+ gnus-newsgroup-dormant nil))
+ (setq gnus-newsgroup-unreads
+ (append gnus-newsgroup-marked gnus-newsgroup-dormant)))
+ ;; We actually mark all articles as canceled, which we
+ ;; have to do when using auto-expiry or adaptive scoring.
+ (gnus-summary-show-all-threads)
+ (if (gnus-summary-first-subject (not all))
+ (while (and
+ (if to-here (< (point) to-here) t)
+ (gnus-summary-mark-article-as-read gnus-catchup-mark)
+ (gnus-summary-search-subject nil (not all)))))
+ (or to-here
+ (setq gnus-newsgroup-unreads
+ (append gnus-newsgroup-marked
+ gnus-newsgroup-dormant)))))
+ (let ((method (gnus-find-method-for-group gnus-newsgroup-name)))
+ (if (and (not to-here) (eq 'nnvirtual (car method)))
+ (nnvirtual-catchup-group
+ (gnus-group-real-name gnus-newsgroup-name) (nth 1 method) all)))
+ (gnus-summary-position-cursor)))
+
+(defun gnus-summary-catchup-to-here (&optional all)
+ "Mark all unticked articles before the current one as read.
+If ALL is non-nil, also mark ticked and dormant articles as read."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (save-excursion
+ (and (zerop (forward-line -1))
+ (progn
+ (end-of-line)
+ (gnus-summary-catchup all t (point))
+ (gnus-set-mode-line 'summary))))
+ (gnus-summary-position-cursor))
+
+(defun gnus-summary-catchup-all (&optional quietly)
+ "Mark all articles in this newsgroup as read."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (gnus-summary-catchup t quietly))
+
+(defun gnus-summary-catchup-and-exit (&optional all quietly)
+ "Mark all articles not marked as unread in this newsgroup as read, then exit.
+If prefix argument ALL is non-nil, all articles are marked as read."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (gnus-summary-catchup all quietly nil 'fast)
+ ;; Select next newsgroup or exit.
+ (if (and (eq gnus-auto-select-next 'quietly)
+ (not (gnus-ephemeral-group-p gnus-newsgroup-name)))
+ (gnus-summary-next-group nil)
+ (gnus-summary-exit)))
+
+(defun gnus-summary-catchup-all-and-exit (&optional quietly)
+ "Mark all articles in this newsgroup as read, and then exit."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (gnus-summary-catchup-and-exit t quietly))
+
+;; Suggested by "Arne Eofsson" <arne@hodgkin.mbi.ucla.edu>.
+(defun gnus-summary-catchup-and-goto-next-group (&optional all)
+ "Mark all articles in this group as read and select the next group.
+If given a prefix, mark all articles, unread as well as ticked, as
+read."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (gnus-summary-catchup all)
+ (gnus-summary-next-group))
+
+;; Thread-based commands.
+
+(defun gnus-summary-toggle-threads (&optional arg)
+ "Toggle showing conversation threads.
+If ARG is positive number, turn showing conversation threads on."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (let ((current (or (gnus-summary-article-number) gnus-newsgroup-end)))
+ (setq gnus-show-threads
+ (if (null arg) (not gnus-show-threads)
+ (> (prefix-numeric-value arg) 0)))
+ (gnus-summary-prepare)
+ (gnus-summary-goto-subject current)
+ (gnus-summary-position-cursor)))
+
+(defun gnus-summary-show-all-threads ()
+ "Show all threads."
+ (interactive)
+ (gnus-set-global-variables)
+ (save-excursion
+ (let ((buffer-read-only nil))
+ (subst-char-in-region (point-min) (point-max) ?\^M ?\n t)))
+ (gnus-summary-position-cursor))
+
+(defun gnus-summary-show-thread ()
+ "Show thread subtrees.
+Returns nil if no thread was there to be shown."
+ (interactive)
+ (gnus-set-global-variables)
+ (let ((buffer-read-only nil)
+ (orig (prog1 (point) (gnus-summary-hide-thread)))
+ ;; first goto end then to beg, to have point at beg after let
+ (end (progn (end-of-line) (point)))
+ (beg (progn (beginning-of-line) (point))))
+ (prog1
+ ;; Any hidden lines here?
+ (search-forward "\r" end t)
+ (subst-char-in-region beg end ?\^M ?\n t)
+ (goto-char orig)
+ (gnus-summary-position-cursor))))
+
+(defun gnus-summary-hide-all-threads ()
+ "Hide all thread subtrees."
+ (interactive)
+ (gnus-set-global-variables)
+ (save-excursion
+ (goto-char (point-min))
+ (gnus-summary-hide-thread)
+ (while (and (not (eobp)) (zerop (forward-line 1)))
+ (gnus-summary-hide-thread)))
+ (gnus-summary-position-cursor))
+
+(defun gnus-summary-hide-thread ()
+ "Hide thread subtrees.
+Returns nil if no threads were there to be hidden."
+ (interactive)
+ (gnus-set-global-variables)
+ (let ((buffer-read-only nil)
+ (start (point))
+ (level (gnus-summary-thread-level))
+ (end (point)))
+ ;; Go forward until either the buffer ends or the subthread
+ ;; ends.
+ (if (eobp)
+ ()
+ (while (and (zerop (forward-line 1))
+ (> (gnus-summary-thread-level) level))
+ (setq end (point)))
+ (prog1
+ (save-excursion
+ (goto-char end)
+ (search-backward "\n" start t))
+ (subst-char-in-region start end ?\n ?\^M t)
+ (forward-line -1)
+ (gnus-summary-position-cursor)))))
+
+(defun gnus-summary-go-to-next-thread (&optional previous)
+ "Go to the same level (or less) next thread.
+If PREVIOUS is non-nil, go to previous thread instead.
+Return the article number moved to, or nil if moving was impossible."
+ (let ((level (gnus-summary-thread-level))
+ (article (gnus-summary-article-number)))
+ (if previous
+ (while (and (zerop (forward-line -1))
+ (> (gnus-summary-thread-level) level)))
+ (while (and (save-excursion
+ (forward-line 1)
+ (not (eobp)))
+ (zerop (forward-line 1))
+ (> (gnus-summary-thread-level) level))))
+ (gnus-summary-recenter)
+ (gnus-summary-position-cursor)
+ (let ((oart (gnus-summary-article-number)))
+ (and (/= oart article) oart))))
+
+(defun gnus-summary-next-thread (n)
+ "Go to the same level next N'th thread.
+If N is negative, search backward instead.
+Returns the difference between N and the number of skips actually
+done."
+ (interactive "p")
+ (gnus-set-global-variables)
+ (let ((backward (< n 0))
+ (n (abs n)))
+ (while (and (> n 0)
+ (gnus-summary-go-to-next-thread backward))
+ (setq n (1- n)))
+ (gnus-summary-position-cursor)
+ (if (/= 0 n) (gnus-message 7 "No more threads"))
+ n))
+
+(defun gnus-summary-prev-thread (n)
+ "Go to the same level previous N'th thread.
+Returns the difference between N and the number of skips actually
+done."
+ (interactive "p")
+ (gnus-set-global-variables)
+ (gnus-summary-next-thread (- n)))
+
+(defun gnus-summary-go-down-thread (&optional same)
+ "Go down one level in the current thread.
+If SAME is non-nil, also move to articles of the same level."
+ (let ((level (gnus-summary-thread-level))
+ (start (point)))
+ (if (and (zerop (forward-line 1))
+ (> (gnus-summary-thread-level) level))
+ t
+ (goto-char start)
+ nil)))
+
+(defun gnus-summary-go-up-thread ()
+ "Go up one level in the current thread."
+ (let ((level (gnus-summary-thread-level))
+ (start (point)))
+ (while (and (zerop (forward-line -1))
+ (>= (gnus-summary-thread-level) level)))
+ (if (>= (gnus-summary-thread-level) level)
+ (progn
+ (goto-char start)
+ nil)
+ t)))
+
+(defun gnus-summary-down-thread (n)
+ "Go down thread N steps.
+If N is negative, go up instead.
+Returns the difference between N and how many steps down that were
+taken."
+ (interactive "p")
+ (gnus-set-global-variables)
+ (let ((up (< n 0))
+ (n (abs n)))
+ (while (and (> n 0)
+ (if up (gnus-summary-go-up-thread)
+ (gnus-summary-go-down-thread)))
+ (setq n (1- n)))
+ (gnus-summary-position-cursor)
+ (if (/= 0 n) (gnus-message 7 "Can't go further"))
+ n))
+
+(defun gnus-summary-up-thread (n)
+ "Go up thread N steps.
+If N is negative, go up instead.
+Returns the difference between N and how many steps down that were
+taken."
+ (interactive "p")
+ (gnus-set-global-variables)
+ (gnus-summary-down-thread (- n)))
+
+(defun gnus-summary-kill-thread (&optional unmark)
+ "Mark articles under current thread as read.
+If the prefix argument is positive, remove any kinds of marks.
+If the prefix argument is negative, tick articles instead."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (if unmark
+ (setq unmark (prefix-numeric-value unmark)))
+ (let ((killing t)
+ (level (gnus-summary-thread-level)))
+ (save-excursion
+ ;; Expand the thread.
+ (gnus-summary-show-thread)
+ (while killing
+ ;; Mark the article...
+ (cond ((null unmark) (gnus-summary-mark-article-as-read
+ gnus-killed-mark))
+ ((> unmark 0) (gnus-summary-mark-article-as-unread
+ gnus-unread-mark))
+ (t (gnus-summary-mark-article-as-unread gnus-ticked-mark)))
+ ;; ...and go forward until either the buffer ends or the subtree
+ ;; ends.
+ (if (not (and (zerop (forward-line 1))
+ (> (gnus-summary-thread-level) level)))
+ (setq killing nil))))
+ ;; Hide killed subtrees.
+ (and (null unmark)
+ gnus-thread-hide-killed
+ (gnus-summary-hide-thread))
+ ;; If marked as read, go to next unread subject.
+ (if (null unmark)
+ ;; Go to next unread subject.
+ (gnus-summary-next-subject 1 t)))
+ (gnus-set-mode-line 'summary))
+
+;; Summary sorting commands
+
+(defun gnus-summary-sort-by-number (&optional reverse)
+ "Sort summary buffer by article number.
+Argument REVERSE means reverse order."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (gnus-summary-sort
+ ;; `gnus-summary-article-number' is a macro, and `sort-subr' wants
+ ;; a function, so we wrap it.
+ (cons (lambda () (gnus-summary-article-number))
+ 'gnus-thread-sort-by-number) reverse))
+
+(defun gnus-summary-sort-by-author (&optional reverse)
+ "Sort summary buffer by author name alphabetically.
+If case-fold-search is non-nil, case of letters is ignored.
+Argument REVERSE means reverse order."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (gnus-summary-sort
+ (cons
+ (lambda ()
+ (let* ((header (gnus-get-header-by-num (gnus-summary-article-number)))
+ extract)
+ (if (not (vectorp header))
+ ""
+ (setq extract (funcall gnus-extract-address-components
+ (mail-header-from header)))
+ (concat (or (car extract) (cdr extract))
+ "\r" (int-to-string (mail-header-number header))
+ "\r" (mail-header-subject header)))))
+ 'gnus-thread-sort-by-author)
+ reverse))
+
+(defun gnus-summary-sort-by-subject (&optional reverse)
+ "Sort summary buffer by subject alphabetically. `Re:'s are ignored.
+If case-fold-search is non-nil, case of letters is ignored.
+Argument REVERSE means reverse order."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (gnus-summary-sort
+ (cons
+ (lambda ()
+ (let* ((header (gnus-get-header-by-num (gnus-summary-article-number)))
+ extract)
+ (if (not (vectorp header))
+ ""
+ (setq extract (funcall gnus-extract-address-components
+ (mail-header-from header)))
+ (concat
+ (downcase (gnus-simplify-subject (gnus-summary-subject-string) t))
+ "\r" (int-to-string (mail-header-number header))
+ "\r" (or (car extract) (cdr extract))))))
+ 'gnus-thread-sort-by-subject)
+ reverse))
+
+(defun gnus-summary-sort-by-date (&optional reverse)
+ "Sort summary buffer by date.
+Argument REVERSE means reverse order."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (gnus-summary-sort
+ (cons
+ (lambda ()
+ (gnus-sortable-date
+ (mail-header-date
+ (gnus-get-header-by-num (gnus-summary-article-number)))))
+ 'gnus-thread-sort-by-date)
+ reverse))
+
+(defun gnus-summary-sort-by-score (&optional reverse)
+ "Sort summary buffer by score.
+Argument REVERSE means reverse order."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (gnus-summary-sort
+ (cons (lambda () (gnus-summary-article-score))
+ 'gnus-thread-sort-by-score)
+ (not reverse)))
+
+(defvar gnus-summary-already-sorted nil)
+(defun gnus-summary-sort (predicate reverse)
+ ;; Sort summary buffer by PREDICATE. REVERSE means reverse order.
+ (if gnus-summary-already-sorted
+ ()
+ (let (buffer-read-only)
+ (if (not gnus-show-threads)
+ ;; We do untreaded sorting...
+ (progn
+ (goto-char (point-min))
+ (sort-subr reverse 'forward-line 'end-of-line (car predicate)))
+ ;; ... or we do threaded sorting.
+ (let ((gnus-thread-sort-functions (list (cdr predicate)))
+ (gnus-summary-prepare-hook nil)
+ (gnus-summary-already-sorted nil))
+ ;; We do that by simply regenerating the threads.
+ (gnus-summary-prepare)
+ (and gnus-show-threads
+ gnus-thread-hide-subtree
+ (gnus-summary-hide-all-threads))
+ ;; If in async mode, we send some info to the backend.
+ (and gnus-newsgroup-async
+ (setq gnus-newsgroup-threads (nreverse gnus-newsgroup-threads))
+ (gnus-request-asynchronous
+ gnus-newsgroup-name
+ (if (and gnus-asynchronous-article-function
+ (fboundp gnus-asynchronous-article-function))
+ (funcall gnus-asynchronous-article-function
+ gnus-newsgroup-threads)
+ gnus-newsgroup-threads))))))))
+
+
+(defun gnus-sortable-date (date)
+ "Make sortable string by string-lessp from DATE.
+Timezone package is used."
+ (let* ((date (timezone-fix-time date nil nil)) ;[Y M D H M S]
+ (year (aref date 0))
+ (month (aref date 1))
+ (day (aref date 2)))
+ (timezone-make-sortable-date
+ year month day
+ (timezone-make-time-string
+ (aref date 3) (aref date 4) (aref date 5)))))
+
+
+;; Summary saving commands.
+
+(defun gnus-summary-save-article (&optional n)
+ "Save the current article using the default saver function.
+If N is a positive number, save the N next articles.
+If N is a negative number, save the N previous articles.
+If N is nil and any articles have been marked with the process mark,
+save those articles instead.
+The variable `gnus-default-article-saver' specifies the saver function."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (let ((articles (gnus-summary-work-articles n)))
+ (while articles
+ (let ((header (gnus-get-header-by-num (car articles))))
+ (if (vectorp header)
+ (progn
+ (save-window-excursion
+ (gnus-summary-select-article t nil nil (car articles)))
+ (or gnus-save-all-headers
+ (gnus-article-hide-headers t))
+ ;; Remove any X-Gnus lines.
+ (save-excursion
+ (save-restriction
+ (set-buffer gnus-article-buffer)
+ (let ((buffer-read-only nil))
+ (goto-char (point-min))
+ (narrow-to-region (point) (or (search-forward "\n\n" nil t)
+ (point-max)))
+ (while (re-search-forward "^X-Gnus" nil t)
+ (beginning-of-line)
+ (delete-region (point)
+ (progn (forward-line 1) (point))))
+ (widen))))
+ (save-window-excursion
+ (if gnus-default-article-saver
+ (funcall gnus-default-article-saver)
+ (error "No default saver is defined."))))
+ (if (assq 'name header)
+ (gnus-copy-file (cdr (assq 'name header)))
+ (gnus-message 1 "Article %d is unsavable" (car articles)))))
+ (gnus-summary-remove-process-mark (car articles))
+ (setq articles (cdr articles)))
+ (gnus-summary-position-cursor)
+ n))
+
+(defun gnus-summary-pipe-output (&optional arg)
+ "Pipe the current article to a subprocess.
+If N is a positive number, pipe the N next articles.
+If N is a negative number, pipe the N previous articles.
+If N is nil and any articles have been marked with the process mark,
+pipe those articles instead."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (let ((gnus-default-article-saver 'gnus-summary-save-in-pipe))
+ (gnus-summary-save-article arg))
+ (gnus-configure-windows 'pipe))
+
+(defun gnus-summary-save-article-mail (&optional arg)
+ "Append the current article to an mail file.
+If N is a positive number, save the N next articles.
+If N is a negative number, save the N previous articles.
+If N is nil and any articles have been marked with the process mark,
+save those articles instead."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (let ((gnus-default-article-saver 'gnus-summary-save-in-mail))
+ (gnus-summary-save-article arg)))
+
+(defun gnus-summary-save-article-rmail (&optional arg)
+ "Append the current article to an rmail file.
+If N is a positive number, save the N next articles.
+If N is a negative number, save the N previous articles.
+If N is nil and any articles have been marked with the process mark,
+save those articles instead."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (let ((gnus-default-article-saver 'gnus-summary-save-in-rmail))
+ (gnus-summary-save-article arg)))
+
+(defun gnus-summary-save-article-file (&optional arg)
+ "Append the current article to a file.
+If N is a positive number, save the N next articles.
+If N is a negative number, save the N previous articles.
+If N is nil and any articles have been marked with the process mark,
+save those articles instead."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (let ((gnus-default-article-saver 'gnus-summary-save-in-file))
+ (gnus-summary-save-article arg)))
+
+(defun gnus-read-save-file-name (prompt default-name)
+ (let ((methods gnus-split-methods)
+ split-name)
+ (if (not gnus-split-methods)
+ ()
+ (save-excursion
+ (set-buffer gnus-article-buffer)
+ (gnus-narrow-to-headers)
+ (while methods
+ (goto-char (point-min))
+ (and (condition-case ()
+ (re-search-forward (car (car methods)) nil t)
+ (error nil))
+ (setq split-name (cons (nth 1 (car methods)) split-name)))
+ (setq methods (cdr methods)))
+ (widen)))
+ (cond ((null split-name)
+ (read-file-name
+ (concat prompt " (default "
+ (file-name-nondirectory default-name) ") ")
+ (file-name-directory default-name)
+ default-name))
+ ((= 1 (length split-name))
+ (read-file-name
+ (concat prompt " (default " (car split-name) ") ")
+ gnus-article-save-directory
+ (concat gnus-article-save-directory (car split-name))))
+ (t
+ (setq split-name (mapcar (lambda (el) (list el))
+ (nreverse split-name)))
+ (let ((result (completing-read
+ (concat prompt " ")
+ split-name nil nil)))
+ (concat gnus-article-save-directory
+ (if (string= result "")
+ (car (car split-name))
+ result)))))))
+
+(defun gnus-summary-save-in-rmail (&optional filename)
+ "Append this article to Rmail file.
+Optional argument FILENAME specifies file name.
+Directory to save to is default to `gnus-article-save-directory' which
+is initialized from the SAVEDIR environment variable."
+ (interactive)
+ (gnus-set-global-variables)
+ (let ((default-name
+ (funcall gnus-rmail-save-name gnus-newsgroup-name
+ gnus-current-headers gnus-newsgroup-last-rmail)))
+ (or filename
+ (setq filename (gnus-read-save-file-name
+ "Save in rmail file:" default-name)))
+ (gnus-make-directory (file-name-directory filename))
+ (gnus-eval-in-buffer-window
+ gnus-article-buffer
+ (save-excursion
+ (save-restriction
+ (widen)
+ (gnus-output-to-rmail filename))))
+ ;; Remember the directory name to save articles
+ (setq gnus-newsgroup-last-rmail filename)))
+
+(defun gnus-summary-save-in-mail (&optional filename)
+ "Append this article to Unix mail file.
+Optional argument FILENAME specifies file name.
+Directory to save to is default to `gnus-article-save-directory' which
+is initialized from the SAVEDIR environment variable."
+ (interactive)
+ (gnus-set-global-variables)
+ (let ((default-name
+ (funcall gnus-mail-save-name gnus-newsgroup-name
+ gnus-current-headers gnus-newsgroup-last-mail)))
+ (or filename
+ (setq filename (gnus-read-save-file-name
+ "Save in Unix mail file:" default-name)))
+ (setq filename
+ (expand-file-name filename
+ (and default-name
+ (file-name-directory default-name))))
+ (gnus-make-directory (file-name-directory filename))
+ (gnus-eval-in-buffer-window
+ gnus-article-buffer
+ (save-excursion
+ (save-restriction
+ (widen)
+ (if (and (file-readable-p filename) (mail-file-babyl-p filename))
+ (gnus-output-to-rmail filename)
+ (rmail-output filename 1 t t)))))
+ ;; Remember the directory name to save articles.
+ (setq gnus-newsgroup-last-mail filename)))
+
+(defun gnus-summary-save-in-file (&optional filename)
+ "Append this article to file.
+Optional argument FILENAME specifies file name.
+Directory to save to is default to `gnus-article-save-directory' which
+is initialized from the SAVEDIR environment variable."
+ (interactive)
+ (gnus-set-global-variables)
+ (let ((default-name
+ (funcall gnus-file-save-name gnus-newsgroup-name
+ gnus-current-headers gnus-newsgroup-last-file)))
+ (or filename
+ (setq filename (gnus-read-save-file-name
+ "Save in file:" default-name)))
+ (gnus-make-directory (file-name-directory filename))
+ (gnus-eval-in-buffer-window
+ gnus-article-buffer
+ (save-excursion
+ (save-restriction
+ (widen)
+ (gnus-output-to-file filename))))
+ ;; Remember the directory name to save articles.
+ (setq gnus-newsgroup-last-file filename)))
+
+(defun gnus-summary-save-in-pipe (&optional command)
+ "Pipe this article to subprocess."
+ (interactive)
+ (gnus-set-global-variables)
+ (let ((command (read-string "Shell command on article: "
+ gnus-last-shell-command)))
+ (if (string-equal command "")
+ (setq command gnus-last-shell-command))
+ (gnus-eval-in-buffer-window
+ gnus-article-buffer
+ (save-restriction
+ (widen)
+ (shell-command-on-region (point-min) (point-max) command nil)))
+ (setq gnus-last-shell-command command)))
+
+;; Summary extract commands
+
+(defun gnus-summary-insert-pseudos (pslist &optional not-view)
+ (let ((buffer-read-only nil)
+ (article (gnus-summary-article-number))
+ b)
+ (or (gnus-summary-goto-subject article)
+ (error (format "No such article: %d" article)))
+ (gnus-summary-position-cursor)
+ ;; If all commands are to be bunched up on one line, we collect
+ ;; them here.
+ (if gnus-view-pseudos-separately
+ ()
+ (let ((ps (setq pslist (sort pslist 'gnus-pseudos<)))
+ files action)
+ (while ps
+ (setq action (cdr (assq 'action (car ps))))
+ (setq files (list (cdr (assq 'name (car ps)))))
+ (while (and ps (cdr ps)
+ (string= (or action "1")
+ (or (cdr (assq 'action (car (cdr ps)))) "2")))
+ (setq files (cons (cdr (assq 'name (car (cdr ps)))) files))
+ (setcdr ps (cdr (cdr ps))))
+ (if (not files)
+ ()
+ (if (not (string-match "%s" action))
+ (setq files (cons " " files)))
+ (setq files (cons " " files))
+ (and (assq 'execute (car ps))
+ (setcdr (assq 'execute (car ps))
+ (funcall (if (string-match "%s" action)
+ 'format 'concat)
+ action
+ (mapconcat (lambda (f) f) files " ")))))
+ (setq ps (cdr ps)))))
+ (if (and gnus-view-pseudos (not not-view))
+ (while pslist
+ (and (assq 'execute (car pslist))
+ (gnus-execute-command (cdr (assq 'execute (car pslist)))
+ (eq gnus-view-pseudos 'not-confirm)))
+ (setq pslist (cdr pslist)))
+ (save-excursion
+ (while pslist
+ (gnus-summary-goto-subject (or (cdr (assq 'article (car pslist)))
+ (gnus-summary-article-number)))
+ (forward-line 1)
+ (setq b (point))
+ (insert " " (file-name-nondirectory
+ (cdr (assq 'name (car pslist))))
+ ": " (or (cdr (assq 'execute (car pslist))) "") "\n")
+ (add-text-properties
+ b (1+ b) (list 'gnus-number gnus-reffed-article-number
+ 'gnus-mark gnus-unread-mark
+ 'gnus-level 0
+ 'gnus-pseudo (car pslist)))
+ (forward-line -1)
+ (gnus-sethash (int-to-string gnus-reffed-article-number)
+ (car pslist) gnus-newsgroup-headers-hashtb-by-number)
+ (setq gnus-newsgroup-unreads
+ (cons gnus-reffed-article-number gnus-newsgroup-unreads))
+ (setq gnus-reffed-article-number (1- gnus-reffed-article-number))
+ (setq pslist (cdr pslist)))))))
+
+(defun gnus-pseudos< (p1 p2)
+ (let ((c1 (cdr (assq 'action p1)))
+ (c2 (cdr (assq 'action p2))))
+ (and c1 c2 (string< c1 c2))))
+
+(defun gnus-request-pseudo-article (props)
+ (cond ((assq 'execute props)
+ (gnus-execute-command (cdr (assq 'execute props)))))
+ (let ((gnus-current-article (gnus-summary-article-number)))
+ (run-hooks 'gnus-mark-article-hook)))
+
+(defun gnus-execute-command (command &optional automatic)
+ (save-excursion
+ (gnus-article-setup-buffer)
+ (set-buffer gnus-article-buffer)
+ (let ((command (if automatic command (read-string "Command: " command)))
+ (buffer-read-only nil))
+ (erase-buffer)
+ (insert "$ " command "\n\n")
+ (if gnus-view-pseudo-asynchronously
+ (start-process "gnus-execute" nil "sh" "-c" command)
+ (call-process "sh" nil t nil "-c" command)))))
+
+(defun gnus-copy-file (file &optional to)
+ "Copy FILE to TO."
+ (interactive
+ (list (read-file-name "Copy file: " default-directory)
+ (read-file-name "Copy file to: " default-directory)))
+ (gnus-set-global-variables)
+ (or to (setq to (read-file-name "Copy file to: " default-directory)))
+ (and (file-directory-p to)
+ (setq to (concat (file-name-as-directory to)
+ (file-name-nondirectory file))))
+ (copy-file file to))
+
+;; Summary kill commands.
+
+(defun gnus-summary-edit-global-kill (article)
+ "Edit the \"global\" kill file."
+ (interactive (list (gnus-summary-article-number)))
+ (gnus-set-global-variables)
+ (gnus-group-edit-global-kill article))
+
+(defun gnus-summary-edit-local-kill ()
+ "Edit a local kill file applied to the current newsgroup."
+ (interactive)
+ (gnus-set-global-variables)
+ (setq gnus-current-headers
+ (gnus-gethash
+ (int-to-string (gnus-summary-article-number))
+ gnus-newsgroup-headers-hashtb-by-number))
+ (gnus-set-global-variables)
+ (gnus-group-edit-local-kill
+ (gnus-summary-article-number) gnus-newsgroup-name))
+
+\f
+;;;
+;;; Gnus article mode
+;;;
+
+(put 'gnus-article-mode 'mode-class 'special)
+
+(defvar gnus-bugaboo nil)
+
+(if gnus-article-mode-map
+ nil
+ (setq gnus-article-mode-map (make-keymap))
+ (suppress-keymap gnus-article-mode-map)
+ (define-key gnus-article-mode-map " " 'gnus-article-next-page)
+ (define-key gnus-article-mode-map "\177" 'gnus-article-prev-page)
+ (define-key gnus-article-mode-map "\C-c^" 'gnus-article-refer-article)
+ (define-key gnus-article-mode-map "h" 'gnus-article-show-summary)
+ (define-key gnus-article-mode-map "s" 'gnus-article-show-summary)
+ (define-key gnus-article-mode-map "\C-c\C-m" 'gnus-article-mail)
+ (define-key gnus-article-mode-map "?" 'gnus-article-describe-briefly)
+ (define-key gnus-article-mode-map gnus-mouse-2 'gnus-article-push-button)
+ (define-key gnus-article-mode-map "\r" 'gnus-article-press-button)
+ (define-key gnus-article-mode-map "\t" 'gnus-article-next-button)
+ (define-key gnus-article-mode-map "\C-c\C-b" 'gnus-bug)
+
+ ;; Duplicate almost all summary keystrokes in the article mode map.
+ (let ((commands
+ (list
+ "p" "N" "P" "\M-\C-n" "\M-\C-p"
+ "\M-n" "\M-p" "." "," "\M-s" "\M-r" "<" ">" "j"
+ "u" "!" "U" "d" "D" "E" "\M-u" "\M-U" "k" "\C-k" "\M-\C-k"
+ "\M-\C-l" "e" "#" "\M-#" "\M-\C-t" "\M-\C-s" "\M-\C-h"
+ "\M-\C-f" "\M-\C-b" "\M-\C-u" "\M-\C-d" "&" "\C-w"
+ "\C-t" "?" "\C-c\M-\C-s" "\C-c\C-s\C-n" "\C-c\C-s\C-a"
+ "\C-c\C-s\C-s" "\C-c\C-s\C-d" "\C-c\C-s\C-i" "\C-x\C-s"
+ "\M-g" "w" "\C-c\C-r" "\M-t" "C"
+ "o" "\C-o" "|" "\M-k" "\M-K" "V" "\C-c\C-d"
+ "\C-c\C-i" "x" "X" "t" "g" "?" "l"
+ "\C-c\C-v\C-v" "\C-d" "v"
+;; "Mt" "M!" "Md" "Mr"
+;; "Mc" "M " "Me" "Mx" "M?" "Mb" "MB" "M#" "M\M-#" "M\M-r"
+;; "M\M-\C-r" "MD" "M\M-D" "MS" "MC" "MH" "M\C-c" "Mk" "MK"
+;; "Ms" "Mc" "Mu" "Mm" "Mk" "Gn" "Gp" "GN" "GP" "G\C-n" "G\C-p"
+;; "G\M-n" "G\M-p" "Gf" "Gb" "Gg" "Gl" "Gp" "Tk" "Tl" "Ti" "TT"
+;; "Ts" "TS" "Th" "TH" "Tn" "Tp" "Tu" "Td" "T#" "A " "An" "A\177" "Ap"
+;; "A\r" "A<" "A>" "Ab" "Ae" "A^" "Ar" "Aw" "Ac" "Ag" "At" "Am"
+;; "As" "Wh" "Ws" "Wc" "Wo" "Ww" "Wd" "Wq" "Wf" "Wt" "W\C-t"
+;; "WT" "WA" "Wa" "WH" "WC" "WS" "Wb" "Hv" "Hf" "Hd" "Hh" "Hi"
+;; "Be" "B\177" "Bm" "Br" "Bw" "Bc" "Bq" "Bi" "Oo" "Om" "Or"
+;; "Of" "Oh" "Ov" "Op" "Vu" "V\C-s" "V\C-r" "Vr" "V&" "VT" "Ve"
+;; "VD" "Vk" "VK" "Vsn" "Vsa" "Vss" "Vsd" "Vsi"
+ )))
+ (while (and gnus-bugaboo commands) ; disabled
+ (define-key gnus-article-mode-map (car commands)
+ 'gnus-article-summary-command)
+ (setq commands (cdr commands))))
+
+ (let ((commands (list "q" "Q" "c" "r" "R" "\C-c\C-f" "m" "a" "f" "F"
+;; "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
+ "=" "n" "^" "\M-^")))
+ (while (and gnus-bugaboo commands) ; disabled
+ (define-key gnus-article-mode-map (car commands)
+ 'gnus-article-summary-command-nosave)
+ (setq commands (cdr commands)))))
+
+
+(defun gnus-article-mode ()
+ "Major mode for displaying an article.
+
+All normal editing commands are switched off.
+
+The following commands are available:
+
+\\<gnus-article-mode-map>
+\\[gnus-article-next-page]\t Scroll the article one page forwards
+\\[gnus-article-prev-page]\t Scroll the article one page backwards
+\\[gnus-article-refer-article]\t Go to the article referred to by an article id near point
+\\[gnus-article-show-summary]\t Display the summary buffer
+\\[gnus-article-mail]\t Send a reply to the address near point
+\\[gnus-article-describe-briefly]\t Describe the current mode briefly
+\\[gnus-info-find-node]\t Go to the Gnus info node"
+ (interactive)
+ (if gnus-visual (gnus-article-make-menu-bar))
+ (kill-all-local-variables)
+ (gnus-simplify-mode-line)
+ (setq mode-name "Article")
+ (setq major-mode 'gnus-article-mode)
+ (make-local-variable 'minor-mode-alist)
+ (or (assq 'gnus-show-mime minor-mode-alist)
+ (setq minor-mode-alist
+ (cons (list 'gnus-show-mime " MIME") minor-mode-alist)))
+ (use-local-map gnus-article-mode-map)
+ (make-local-variable 'page-delimiter)
+ (setq page-delimiter gnus-page-delimiter)
+ (buffer-disable-undo (current-buffer))
+ (setq buffer-read-only t) ;Disable modification
+ (run-hooks 'gnus-article-mode-hook))
+
+(defun gnus-article-setup-buffer ()
+ "Initialize article mode buffer."
+ ;; Returns the article buffer.
+ (if (get-buffer gnus-article-buffer)
+ (save-excursion
+ (set-buffer gnus-article-buffer)
+ (buffer-disable-undo (current-buffer))
+ (setq buffer-read-only t)
+ (gnus-add-current-to-buffer-list)
+ (or (eq major-mode 'gnus-article-mode)
+ (gnus-article-mode))
+ (current-buffer))
+ (save-excursion
+ (set-buffer (get-buffer-create gnus-article-buffer))
+ (gnus-add-current-to-buffer-list)
+ (gnus-article-mode)
+ (current-buffer))))
+
+;; Set article window start at LINE, where LINE is the number of lines
+;; from the head of the article.
+(defun gnus-article-set-window-start (&optional line)
+ (set-window-start
+ (get-buffer-window gnus-article-buffer)
+ (save-excursion
+ (set-buffer gnus-article-buffer)
+ (goto-char (point-min))
+ (if (not line)
+ (point-min)
+ (gnus-message 6 "Moved to bookmark")
+ (search-forward "\n\n" nil t)
+ (forward-line line)
+ (point)))))
+
+(defun gnus-request-article-this-buffer (article group)
+ "Get an article and insert it into this buffer."
+ (setq group (or group gnus-newsgroup-name))
+
+ ;; Open server if it has closed.
+ (gnus-check-server (gnus-find-method-for-group group))
+
+ ;; Using `gnus-request-article' directly will insert the article into
+ ;; `nntp-server-buffer' - so we'll save some time by not having to
+ ;; copy it from the server buffer into the article buffer.
+
+ ;; We only request an article by message-id when we do not have the
+ ;; headers for it, so we'll have to get those.
+ (and (stringp article)
+ (let ((gnus-override-method gnus-refer-article-method))
+ (gnus-read-header article)))
+
+ ;; If the article number is negative, that means that this article
+ ;; doesn't belong in this newsgroup (possibly), so we find its
+ ;; message-id and request it by id instead of number.
+ (if (not (numberp article))
+ ()
+ (save-excursion
+ (set-buffer gnus-summary-buffer)
+ (let ((header (gnus-get-header-by-num article)))
+ (if (< article 0)
+ (if (vectorp header)
+ ;; It's a real article.
+ (setq article (mail-header-id header))
+ ;; It is an extracted pseudo-article.
+ (setq article 'pseudo)
+ (gnus-request-pseudo-article header)))
+
+ (let ((method (gnus-find-method-for-group gnus-newsgroup-name)))
+ (if (not (eq (car method) 'nneething))
+ ()
+ (let ((dir (concat (file-name-as-directory (nth 1 method))
+ (mail-header-subject header))))
+ (if (file-directory-p dir)
+ (progn
+ (setq article 'nneething)
+ (gnus-group-enter-directory dir)))))))))
+
+ ;; Check the cache.
+ (if (and gnus-use-cache
+ (numberp article)
+ (gnus-cache-request-article article group))
+ 'article
+ ;; Get the article and put into the article buffer.
+ (if (or (stringp article) (numberp article))
+ (progn
+ (erase-buffer)
+ ;; There may be some overlays that we have to kill...
+ (insert "i")
+ (let ((overlays (and (fboundp 'overlays-at)
+ (overlays-at (point-min)))))
+ (while overlays
+ (delete-overlay (car overlays))
+ (setq overlays (cdr overlays))))
+ (erase-buffer)
+ (let ((gnus-override-method
+ (and (stringp article) gnus-refer-article-method)))
+ (and (gnus-request-article article group (current-buffer))
+ 'article)))
+ article)))
+
+(defun gnus-read-header (id)
+ "Read the headers of article ID and enter them into the Gnus system."
+ (let (header)
+ (if (not (setq header
+ (car (if (let ((gnus-nov-is-evil t))
+ (gnus-retrieve-headers
+ (list id) gnus-newsgroup-name))
+ (gnus-get-newsgroup-headers)))))
+ nil
+ (if (stringp id)
+ (mail-header-set-number header gnus-reffed-article-number))
+ (setq gnus-newsgroup-headers (cons header gnus-newsgroup-headers))
+ (gnus-sethash (int-to-string (mail-header-number header)) header
+ gnus-newsgroup-headers-hashtb-by-number)
+ (if (stringp id)
+ (setq gnus-reffed-article-number (1- gnus-reffed-article-number)))
+ (setq gnus-current-headers header)
+ header)))
+
+(defun gnus-article-prepare (article &optional all-headers header)
+ "Prepare ARTICLE in article mode buffer.
+ARTICLE should either be an article number or a Message-ID.
+If ARTICLE is an id, HEADER should be the article headers.
+If ALL-HEADERS is non-nil, no headers are hidden."
+ (save-excursion
+ ;; Make sure we start in a summary buffer.
+ (or (eq major-mode 'gnus-summary-mode)
+ (set-buffer gnus-summary-buffer))
+ (setq gnus-summary-buffer (current-buffer))
+ ;; Make sure the connection to the server is alive.
+ (or (gnus-server-opened (gnus-find-method-for-group gnus-newsgroup-name))
+ (progn
+ (gnus-check-server
+ (gnus-find-method-for-group gnus-newsgroup-name))
+ (gnus-request-group gnus-newsgroup-name t)))
+ (let* ((article (if header (mail-header-number header) article))
+ (summary-buffer (current-buffer))
+ (internal-hook gnus-article-internal-prepare-hook)
+ (group gnus-newsgroup-name)
+ result)
+ (save-excursion
+ (gnus-article-setup-buffer)
+ (set-buffer gnus-article-buffer)
+ (if (not (setq result (let ((buffer-read-only nil))
+ (gnus-request-article-this-buffer
+ article group))))
+ ;; There is no such article.
+ (save-excursion
+ (if (not (numberp article))
+ ()
+ (setq gnus-article-current
+ (cons gnus-newsgroup-name article))
+ (set-buffer gnus-summary-buffer)
+ (setq gnus-current-article article)
+ (gnus-summary-mark-article article gnus-canceled-mark))
+ (gnus-message 1 "No such article (may be canceled)")
+ (ding)
+ nil)
+ (if (or (eq result 'pseudo) (eq result 'nneething))
+ (progn
+ (save-excursion
+ (set-buffer summary-buffer)
+ (setq gnus-last-article gnus-current-article
+ gnus-newsgroup-history (cons gnus-current-article
+ gnus-newsgroup-history)
+ gnus-current-article 0
+ gnus-current-headers nil
+ gnus-article-current nil)
+ (if (eq result 'nneething)
+ (gnus-configure-windows 'summary)
+ (gnus-configure-windows 'article))
+ (gnus-set-global-variables))
+ (gnus-set-mode-line 'article))
+ ;; The result from the `request' was an actual article -
+ ;; or at least some text that is now displayed in the
+ ;; article buffer.
+ (if (and (numberp article)
+ (not (eq article gnus-current-article)))
+ ;; Seems like a new article has been selected.
+ ;; `gnus-current-article' must be an article number.
+ (save-excursion
+ (set-buffer summary-buffer)
+ (setq gnus-last-article gnus-current-article
+ gnus-newsgroup-history (cons gnus-current-article
+ gnus-newsgroup-history)
+ gnus-current-article article
+ gnus-current-headers
+ (gnus-get-header-by-num gnus-current-article)
+ gnus-article-current
+ (cons gnus-newsgroup-name gnus-current-article))
+ (gnus-summary-show-thread)
+ (run-hooks 'gnus-mark-article-hook)
+ (gnus-set-mode-line 'summary)
+ (and gnus-visual
+ (run-hooks 'gnus-visual-mark-article-hook))
+ ;; Set the global newsgroup variables here.
+ ;; Suggested by Jim Sisolak
+ ;; <sisolak@trans4.neep.wisc.edu>.
+ (gnus-set-global-variables)
+ (setq gnus-have-all-headers
+ (or all-headers gnus-show-all-headers))
+ (and gnus-use-cache
+ (vectorp (gnus-get-header-by-number article))
+ (gnus-cache-possibly-enter-article
+ group article
+ (gnus-get-header-by-number article)
+ (memq article gnus-newsgroup-marked)
+ (memq article gnus-newsgroup-dormant)
+ (memq article gnus-newsgroup-unreads)))))
+ ;; Hooks for getting information from the article.
+ ;; This hook must be called before being narrowed.
+ (let (buffer-read-only)
+ (run-hooks 'internal-hook)
+ (run-hooks 'gnus-article-prepare-hook)
+ ;; Decode MIME message.
+ (if (and gnus-show-mime
+ (or (not gnus-strict-mime)
+ (gnus-fetch-field "Mime-Version")))
+ (funcall gnus-show-mime-method))
+ ;; Perform the article display hooks.
+ (run-hooks 'gnus-article-display-hook))
+ ;; Do page break.
+ (goto-char (point-min))
+ (and gnus-break-pages (gnus-narrow-to-page))
+ (gnus-set-mode-line 'article)
+ (gnus-configure-windows 'article)
+ (goto-char (point-min))
+ t))))))
+
+(defun gnus-article-show-all-headers ()
+ "Show all article headers in article mode buffer."
+ (save-excursion
+ (gnus-article-setup-buffer)
+ (set-buffer gnus-article-buffer)
+ (let ((buffer-read-only nil))
+ (remove-text-properties (point-min) (point-max)
+ gnus-hidden-properties))))
+
+(defun gnus-article-hide-headers-if-wanted ()
+ "Hide unwanted headers if `gnus-have-all-headers' is nil.
+Provided for backwards compatibility."
+ (or (save-excursion (set-buffer gnus-summary-buffer) gnus-have-all-headers)
+ (gnus-article-hide-headers)))
+
+(defun gnus-article-hide-headers (&optional delete)
+ "Hide unwanted headers and possibly sort them as well."
+ (interactive "P")
+ (save-excursion
+ (set-buffer gnus-article-buffer)
+ (save-restriction
+ (let ((sorted gnus-sorted-header-list)
+ (buffer-read-only nil)
+ want-list beg want-l)
+ ;; First we narrow to just the headers.
+ (widen)
+ (goto-char (point-min))
+ ;; Hide any "From " lines at the beginning of (mail) articles.
+ (while (looking-at "From ")
+ (forward-line 1))
+ (or (bobp)
+ (add-text-properties (point-min) (point) gnus-hidden-properties))
+ ;; Then treat the rest of the header lines.
+ (narrow-to-region
+ (point)
+ (progn (search-forward "\n\n" nil t) (forward-line -1) (point)))
+ ;; Then we use the two regular expressions
+ ;; `gnus-ignored-headers' and `gnus-visible-headers' to
+ ;; select which header lines is to remain visible in the
+ ;; article buffer.
+ (goto-char (point-min))
+ (while (re-search-forward "^[^ \t]*:" nil t)
+ (beginning-of-line)
+ ;; We add the headers we want to keep to a list and delete
+ ;; them from the buffer.
+ (if (or (and (stringp gnus-visible-headers)
+ (looking-at gnus-visible-headers))
+ (and (not (stringp gnus-visible-headers))
+ (stringp gnus-ignored-headers)
+ (not (looking-at gnus-ignored-headers))))
+ (progn
+ (setq beg (point))
+ (forward-line 1)
+ ;; Be sure to get multi-line headers...
+ (re-search-forward "^[^ \t]*:" nil t)
+ (beginning-of-line)
+ (setq want-list
+ (cons (buffer-substring beg (point)) want-list))
+ (delete-region beg (point))
+ (goto-char beg))
+ (forward-line 1)))
+ ;; Next we perform the sorting by looking at
+ ;; `gnus-sorted-header-list'.
+ (goto-char (point-min))
+ (while (and sorted want-list)
+ (setq want-l want-list)
+ (while (and want-l
+ (not (string-match (car sorted) (car want-l))))
+ (setq want-l (cdr want-l)))
+ (if want-l
+ (progn
+ (insert (car want-l))
+ (setq want-list (delq (car want-l) want-list))))
+ (setq sorted (cdr sorted)))
+ ;; Any headers that were not matched by the sorted list we
+ ;; just tack on the end of the visible header list.
+ (while want-list
+ (insert (car want-list))
+ (setq want-list (cdr want-list)))
+ ;; And finally we make the unwanted headers invisible.
+ (if delete
+ (delete-region (point) (point-max))
+ ;; Suggested by Sudish Joseph <joseph@cis.ohio-state.edu>.
+ (add-text-properties (point) (point-max) gnus-hidden-properties))))))
+
+;; Written by Per Abrahamsen <amanda@iesd.auc.dk>.
+(defun gnus-article-treat-overstrike ()
+ "Translate overstrikes into bold text."
+ (interactive)
+ (save-excursion
+ (set-buffer gnus-article-buffer)
+ (let ((buffer-read-only nil))
+ (while (search-forward "\b" nil t)
+ (let ((next (following-char))
+ (previous (char-after (- (point) 2))))
+ (cond ((eq next previous)
+ (put-text-property (- (point) 2) (point)
+ 'invisible t)
+ (put-text-property (point) (1+ (point))
+ 'face 'bold))
+ ((eq next ?_)
+ (put-text-property (1- (point)) (1+ (point))
+ 'invisible t)
+ (put-text-property (1- (point)) (point)
+ 'face 'underline))
+ ((eq previous ?_)
+ (put-text-property (- (point) 2) (point)
+ 'invisible t)
+ (put-text-property (point) (1+ (point))
+ 'face 'underline))))))))
+
+(defun gnus-article-word-wrap ()
+ "Format too long lines."
+ (interactive)
+ (save-excursion
+ (set-buffer gnus-article-buffer)
+ (let ((buffer-read-only nil))
+ (goto-char (point-min))
+ (search-forward "\n\n" nil t)
+ (end-of-line 1)
+ (let ((paragraph-start "^[>|#:<;* ]*[ \t]*$")
+ (adaptive-fill-regexp "[ \t]*\\([|#:<;>*]+ *\\)?")
+ (adaptive-fill-mode t))
+ (while (not (eobp))
+ (and (>= (current-column) (min fill-column (window-width)))
+ (/= (preceding-char) ?:)
+ (fill-paragraph nil))
+ (end-of-line 2))))))
+
+(defun gnus-article-remove-cr ()
+ "Remove carriage returns from an article."
+ (interactive)
+ (save-excursion
+ (set-buffer gnus-article-buffer)
+ (let ((buffer-read-only nil))
+ (goto-char (point-min))
+ (while (search-forward "\r" nil t)
+ (replace-match "" t t)))))
+
+(defun gnus-article-display-x-face (&optional force)
+ "Look for an X-Face header and display it if present."
+ (interactive (list 'force))
+ (save-excursion
+ (set-buffer gnus-article-buffer)
+ (let ((inhibit-point-motion-hooks t)
+ (case-fold-search nil)
+ from)
+ (save-restriction
+ (goto-char (point-min))
+ (search-forward "\n\n")
+ (narrow-to-region (point-min) (point))
+ (goto-char (point-min))
+ (setq from (mail-fetch-field "from"))
+ (if (not (and gnus-article-x-face-command
+ (or force
+ (not gnus-article-x-face-too-ugly)
+ (and gnus-article-x-face-too-ugly from
+ (not (string-match gnus-article-x-face-too-ugly
+ from))))
+ (progn
+ (goto-char (point-min))
+ (re-search-forward "^X-Face: " nil t))))
+ nil
+ (let ((beg (point))
+ (end (1- (re-search-forward "^\\($\\|[^ \t]\\)" nil t))))
+ (if (symbolp gnus-article-x-face-command)
+ (and (or (fboundp gnus-article-x-face-command)
+ (error "%s is not a function"
+ gnus-article-x-face-command))
+ (funcall gnus-article-x-face-command beg end))
+ (call-process-region beg end "sh" nil 0 nil
+ "-c" gnus-article-x-face-command))))))))
+
+(defun gnus-article-de-quoted-unreadable (&optional force)
+ "Do a naive translation of a quoted-printable-encoded article.
+This is in no way, shape or form meant as a replacement for real MIME
+processing, but is simply a stop-gap measure until MIME support is
+written.
+If FORCE, decode the article whether it is marked as quoted-printable
+or not."
+ (interactive (list 'force))
+ (save-excursion
+ (set-buffer gnus-article-buffer)
+ (let ((case-fold-search t)
+ (buffer-read-only nil)
+ (type (gnus-fetch-field "content-transfer-encoding")))
+ (if (or force (and type (string-match "quoted-printable" type)))
+ (progn
+ (goto-char (point-min))
+ (search-forward "\n\n" nil 'move)
+ (gnus-mime-decode-quoted-printable (point) (point-max)))))))
+
+(defun gnus-mime-decode-quoted-printable (from to)
+ ;; Decode quoted-printable from region between FROM and TO.
+ (save-excursion
+ (goto-char from)
+ (while (search-forward "=" to t)
+ (cond ((eq (following-char) ?\n)
+ (delete-char -1)
+ (delete-char 1))
+ ((looking-at "[0-9A-F][0-9A-F]")
+ (delete-char -1)
+ (insert (hexl-hex-string-to-integer
+ (buffer-substring (point) (+ 2 (point)))))
+ (delete-char 2))
+ ((looking-at "=")
+ (delete-char 1))
+ ((gnus-message 3 "Malformed MIME quoted-printable message"))))))
+
+(defvar gnus-article-time-units
+ (list (cons 'year (* 365.25 24 60 60))
+ (cons 'week (* 7 24 60 60))
+ (cons 'day (* 24 60 60))
+ (cons 'hour (* 60 60))
+ (cons 'minute 60)
+ (cons 'second 1)))
+
+(defun gnus-article-date-ut (&optional type)
+ "Convert DATE date to universal time in the current article.
+If TYPE is `local', convert to local time; if it is `lapsed', output
+how much time has lapsed since DATE."
+ (interactive (list 'ut))
+ (let ((date (mail-header-date (or gnus-current-headers
+ (gnus-get-header-by-number
+ (gnus-summary-article-number))"")))
+ (date-regexp "^Date: \\|^X-Sent: "))
+ (if (or (not date)
+ (string= date ""))
+ ()
+ (save-excursion
+ (set-buffer gnus-article-buffer)
+ (let ((buffer-read-only nil))
+ (goto-char (point-min))
+ (if (and (re-search-forward date-regexp nil t)
+ (progn
+ (beginning-of-line)
+ (looking-at date-regexp)))
+ (delete-region (gnus-point-at-bol)
+ (progn (end-of-line) (1+ (point))))
+ (goto-char (point-min))
+ (goto-char (- (search-forward "\n\n") 2)))
+ (insert
+ (cond
+ ((eq type 'local)
+ (concat "Date: " (condition-case ()
+ (timezone-make-date-arpa-standard date)
+ (error date))
+ "\n"))
+ ((eq type 'ut)
+ (concat "Date: "
+ (condition-case ()
+ (timezone-make-date-arpa-standard date nil "UT")
+ (error date))
+ "\n"))
+ ((eq type 'lapsed)
+ ;; If the date is seriously mangled, the timezone
+ ;; functions are liable to bug out, so we condition-case
+ ;; the entire thing. We call (current-time) once, rather than
+ ;; letting current-time-string and current-time-zone default to
+ ;; it, because that avoids a rare race condition when the time
+ ;; zone changes between those two calls.
+ (let* ((now (current-time))
+ (real-sec (condition-case ()
+ (- (gnus-seconds-since-epoch
+ (timezone-make-date-arpa-standard
+ (current-time-string now)
+ (current-time-zone now) "UT"))
+ (gnus-seconds-since-epoch
+ (timezone-make-date-arpa-standard
+ date nil "UT")))
+ (error 0)))
+ (sec (abs real-sec))
+ num prev)
+ (if (zerop sec)
+ "X-Sent: Now\n"
+ (concat
+ "X-Sent: "
+ (mapconcat
+ (lambda (unit)
+ (if (zerop (setq num (ffloor (/ sec (cdr unit)))))
+ ""
+ (setq sec (- sec (* num (cdr unit))))
+ (prog1
+ (concat (if prev ", " "") (int-to-string
+ (floor num))
+ " " (symbol-name (car unit))
+ (if (> num 1) "s" ""))
+ (setq prev t))))
+ gnus-article-time-units "")
+ (if (> real-sec 0)
+ " ago\n"
+ " in the future\n")))))
+ (t
+ (error "Unknown conversion type: %s" type)))))))))
+
+(defun gnus-article-date-local ()
+ "Convert the current article date to the local timezone."
+ (interactive)
+ (gnus-article-date-ut 'local))
+
+(defun gnus-article-date-lapsed ()
+ "Convert the current article date to time lapsed since it was sent."
+ (interactive)
+ (gnus-article-date-ut 'lapsed))
+
+(defun gnus-article-maybe-highlight ()
+ "Do some article highlighting if `gnus-visual' is non-nil."
+ (if gnus-visual (gnus-article-highlight-some)))
+
+;; Article savers.
+
+(defun gnus-output-to-rmail (file-name)
+ "Append the current article to an Rmail file named FILE-NAME."
+ (require 'rmail)
+ ;; Most of these codes are borrowed from rmailout.el.
+ (setq file-name (expand-file-name file-name))
+ (setq rmail-default-rmail-file file-name)
+ (let ((artbuf (current-buffer))
+ (tmpbuf (get-buffer-create " *Gnus-output*")))
+ (save-excursion
+ (or (get-file-buffer file-name)
+ (file-exists-p file-name)
+ (if (gnus-yes-or-no-p
+ (concat "\"" file-name "\" does not exist, create it? "))
+ (let ((file-buffer (create-file-buffer file-name)))
+ (save-excursion
+ (set-buffer file-buffer)
+ (rmail-insert-rmail-file-header)
+ (let ((require-final-newline nil))
+ (write-region (point-min) (point-max) file-name t 1)))
+ (kill-buffer file-buffer))
+ (error "Output file does not exist")))
+ (set-buffer tmpbuf)
+ (buffer-disable-undo (current-buffer))
+ (erase-buffer)
+ (insert-buffer-substring artbuf)
+ (gnus-convert-article-to-rmail)
+ ;; Decide whether to append to a file or to an Emacs buffer.
+ (let ((outbuf (get-file-buffer file-name)))
+ (if (not outbuf)
+ (append-to-file (point-min) (point-max) file-name)
+ ;; File has been visited, in buffer OUTBUF.
+ (set-buffer outbuf)
+ (let ((buffer-read-only nil)
+ (msg (and (boundp 'rmail-current-message)
+ (symbol-value 'rmail-current-message))))
+ ;; If MSG is non-nil, buffer is in RMAIL mode.
+ (if msg
+ (progn (widen)
+ (narrow-to-region (point-max) (point-max))))
+ (insert-buffer-substring tmpbuf)
+ (if msg
+ (progn
+ (goto-char (point-min))
+ (widen)
+ (search-backward "\^_")
+ (narrow-to-region (point) (point-max))
+ (goto-char (1+ (point-min)))
+ (rmail-count-new-messages t)
+ (rmail-show-message msg)))))))
+ (kill-buffer tmpbuf)))
+
+(defun gnus-output-to-file (file-name)
+ "Append the current article to a file named FILE-NAME."
+ (setq file-name (expand-file-name file-name))
+ (let ((artbuf (current-buffer))
+ (tmpbuf (get-buffer-create " *Gnus-output*")))
+ (save-excursion
+ (set-buffer tmpbuf)
+ (buffer-disable-undo (current-buffer))
+ (erase-buffer)
+ (insert-buffer-substring artbuf)
+ ;; Append newline at end of the buffer as separator, and then
+ ;; save it to file.
+ (goto-char (point-max))
+ (insert "\n")
+ (append-to-file (point-min) (point-max) file-name))
+ (kill-buffer tmpbuf)))
+
+(defun gnus-convert-article-to-rmail ()
+ "Convert article in current buffer to Rmail message format."
+ (let ((buffer-read-only nil))
+ ;; Convert article directly into Babyl format.
+ ;; Suggested by Rob Austein <sra@lcs.mit.edu>
+ (goto-char (point-min))
+ (insert "\^L\n0, unseen,,\n*** EOOH ***\n")
+ (while (search-forward "\n\^_" nil t) ;single char
+ (replace-match "\n^_" t t)) ;2 chars: "^" and "_"
+ (goto-char (point-max))
+ (insert "\^_")))
+
+(defun gnus-narrow-to-page (&optional arg)
+ "Make text outside current page invisible except for page delimiter.
+A numeric arg specifies to move forward or backward by that many pages,
+thus showing a page other than the one point was originally in."
+ (interactive "P")
+ (setq arg (if arg (prefix-numeric-value arg) 0))
+ (save-excursion
+ (forward-page -1) ;Beginning of current page.
+ (widen)
+ (if (> arg 0)
+ (forward-page arg)
+ (if (< arg 0)
+ (forward-page (1- arg))))
+ ;; Find the end of the page.
+ (forward-page)
+ ;; If we stopped due to end of buffer, stay there.
+ ;; If we stopped after a page delimiter, put end of restriction
+ ;; at the beginning of that line.
+ ;; These are commented out.
+ ;; (if (save-excursion (beginning-of-line)
+ ;; (looking-at page-delimiter))
+ ;; (beginning-of-line))
+ (narrow-to-region (point)
+ (progn
+ ;; Find the top of the page.
+ (forward-page -1)
+ ;; If we found beginning of buffer, stay there.
+ ;; If extra text follows page delimiter on same line,
+ ;; include it.
+ ;; Otherwise, show text starting with following line.
+ (if (and (eolp) (not (bobp)))
+ (forward-line 1))
+ (point)))))
+
+(defun gnus-gmt-to-local ()
+ "Rewrite Date header described in GMT to local in current buffer.
+Intended to be used with gnus-article-prepare-hook."
+ (save-excursion
+ (save-restriction
+ (widen)
+ (goto-char (point-min))
+ (narrow-to-region (point-min)
+ (progn (search-forward "\n\n" nil 'move) (point)))
+ (goto-char (point-min))
+ (if (re-search-forward "^Date:[ \t]\\(.*\\)$" nil t)
+ (let ((buffer-read-only nil)
+ (date (buffer-substring-no-properties
+ (match-beginning 1) (match-end 1))))
+ (delete-region (match-beginning 1) (match-end 1))
+ (insert
+ (timezone-make-date-arpa-standard
+ date)))))))
+
+
+;; Article mode commands
+
+(defun gnus-article-next-page (&optional lines)
+ "Show next page of current article.
+If end of article, return non-nil. Otherwise return nil.
+Argument LINES specifies lines to be scrolled up."
+ (interactive "P")
+ (move-to-window-line -1)
+ ;; Fixed by enami@ptgd.sony.co.jp (enami tsugutomo)
+ (if (save-excursion
+ (end-of-line)
+ (and (pos-visible-in-window-p) ;Not continuation line.
+ (eobp)))
+ ;; Nothing in this page.
+ (if (or (not gnus-break-pages)
+ (save-excursion
+ (save-restriction
+ (widen) (forward-line 1) (eobp)))) ;Real end-of-buffer?
+ t ;Nothing more.
+ (gnus-narrow-to-page 1) ;Go to next page.
+ nil)
+ ;; More in this page.
+ (condition-case ()
+ (scroll-up lines)
+ (end-of-buffer
+ ;; Long lines may cause an end-of-buffer error.
+ (goto-char (point-max))))
+ nil))
+
+(defun gnus-article-prev-page (&optional lines)
+ "Show previous page of current article.
+Argument LINES specifies lines to be scrolled down."
+ (interactive "P")
+ (move-to-window-line 0)
+ (if (and gnus-break-pages
+ (bobp)
+ (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
+ (progn
+ (gnus-narrow-to-page -1) ;Go to previous page.
+ (goto-char (point-max))
+ (recenter -1))
+ (scroll-down lines)))
+
+(defun gnus-article-refer-article ()
+ "Read article specified by message-id around point."
+ (interactive)
+ (search-forward ">" nil t) ;Move point to end of "<....>".
+ (if (re-search-backward "\\(<[^<> \t\n]+>\\)" nil t)
+ (let ((message-id
+ (buffer-substring (match-beginning 1) (match-end 1))))
+ (set-buffer gnus-summary-buffer)
+ (gnus-summary-refer-article message-id))
+ (error "No references around point")))
+
+(defun gnus-article-show-summary ()
+ "Reconfigure windows to show summary buffer."
+ (interactive)
+ (gnus-configure-windows 'article)
+ (gnus-summary-goto-subject gnus-current-article))
+
+(defun gnus-article-describe-briefly ()
+ "Describe article mode commands briefly."
+ (interactive)
+ (gnus-message 6
+ (substitute-command-keys "\\<gnus-article-mode-map>\\[gnus-article-next-page]:Next page \\[gnus-article-prev-page]:Prev page \\[gnus-article-show-summary]:Show summary \\[gnus-info-find-node]:Run Info \\[gnus-article-describe-briefly]:This help")))
+
+(defun gnus-article-summary-command ()
+ "Execute the last keystroke in the summary buffer."
+ (interactive)
+ (let ((obuf (current-buffer))
+ (owin (current-window-configuration))
+ func)
+ (switch-to-buffer gnus-summary-buffer 'norecord)
+ (setq func (lookup-key (current-local-map) (this-command-keys)))
+ (call-interactively func)
+ (set-buffer obuf)
+ (set-window-configuration owin)
+ (set-window-point (get-buffer-window (current-buffer)) (point))))
+
+(defun gnus-article-summary-command-nosave ()
+ "Execute the last keystroke in the summary buffer."
+ (interactive)
+ (let (func)
+ (pop-to-buffer gnus-summary-buffer 'norecord)
+ (setq func (lookup-key (current-local-map) (this-command-keys)))
+ (call-interactively func)))
+
+\f
+;; Basic ideas by emv@math.lsa.umich.edu (Edward Vielmetti)
+
+;;;###autoload
+(defalias 'gnus-batch-kill 'gnus-batch-score)
+;;;###autoload
+(defun gnus-batch-score ()
+ "Run batched scoring.
+Usage: emacs -batch -l gnus -f gnus-batch-score <newsgroups> ...
+Newsgroups is a list of strings in Bnews format. If you want to score
+the comp hierarchy, you'd say \"comp.all\". If you would not like to
+score the alt hierarchy, you'd say \"!alt.all\"."
+ (interactive)
+ (let* ((yes-and-no
+ (gnus-newsrc-parse-options
+ (apply (function concat)
+ (mapcar (lambda (g) (concat g " "))
+ command-line-args-left))))
+ (gnus-expert-user t)
+ (nnmail-spool-file nil)
+ (gnus-use-dribble-file nil)
+ (yes (car yes-and-no))
+ (no (cdr yes-and-no))
+ group newsrc entry
+ ;; Disable verbose message.
+ gnus-novice-user gnus-large-newsgroup)
+ ;; Eat all arguments.
+ (setq command-line-args-left nil)
+ ;; Start Gnus.
+ (gnus)
+ ;; Apply kills to specified newsgroups in command line arguments.
+ (setq newsrc (cdr gnus-newsrc-alist))
+ (while newsrc
+ (setq group (car (car newsrc)))
+ (setq entry (gnus-gethash group gnus-newsrc-hashtb))
+ (if (and (<= (nth 1 (car newsrc)) gnus-level-subscribed)
+ (and (car entry)
+ (or (eq (car entry) t)
+ (not (zerop (car entry)))))
+ (if yes (string-match yes group) t)
+ (or (null no) (not (string-match no group))))
+ (progn
+ (gnus-summary-read-group group nil t)
+ (and (eq (current-buffer) (get-buffer gnus-summary-buffer))
+ (gnus-summary-exit))))
+ (setq newsrc (cdr newsrc)))
+ ;; Exit Emacs.
+ (switch-to-buffer gnus-group-buffer)
+ (gnus-group-save-newsrc)))
+
+(defun gnus-apply-kill-file ()
+ "Apply a kill file to the current newsgroup.
+Returns the number of articles marked as read."
+ (if (or (file-exists-p (gnus-newsgroup-kill-file nil))
+ (file-exists-p (gnus-newsgroup-kill-file gnus-newsgroup-name)))
+ (gnus-apply-kill-file-internal)
+ 0))
+
+(defun gnus-kill-save-kill-buffer ()
+ (save-excursion
+ (let ((file (gnus-newsgroup-kill-file gnus-newsgroup-name)))
+ (if (get-file-buffer file)
+ (progn
+ (set-buffer (get-file-buffer file))
+ (and (buffer-modified-p) (save-buffer))
+ (kill-buffer (current-buffer)))))))
+
+(defvar gnus-kill-file-name "KILL"
+ "Suffix of the kill files.")
+
+(defun gnus-newsgroup-kill-file (newsgroup)
+ "Return the name of a kill file name for NEWSGROUP.
+If NEWSGROUP is nil, return the global kill file name instead."
+ (cond ((or (null newsgroup)
+ (string-equal newsgroup ""))
+ ;; The global KILL file is placed at top of the directory.
+ (expand-file-name gnus-kill-file-name
+ (or gnus-kill-files-directory "~/News")))
+ ((gnus-use-long-file-name 'not-kill)
+ ;; Append ".KILL" to newsgroup name.
+ (expand-file-name (concat (gnus-newsgroup-savable-name newsgroup)
+ "." gnus-kill-file-name)
+ (or gnus-kill-files-directory "~/News")))
+ (t
+ ;; Place "KILL" under the hierarchical directory.
+ (expand-file-name (concat (gnus-newsgroup-directory-form newsgroup)
+ "/" gnus-kill-file-name)
+ (or gnus-kill-files-directory "~/News")))))
+
+\f
+;;;
+;;; Dribble file
+;;;
+
+(defvar gnus-dribble-ignore nil)
+(defvar gnus-dribble-eval-file nil)
+
+(defun gnus-dribble-file-name ()
+ (concat gnus-current-startup-file "-dribble"))
+
+(defun gnus-dribble-enter (string)
+ (if (and (not gnus-dribble-ignore)
+ gnus-dribble-buffer
+ (buffer-name gnus-dribble-buffer))
+ (let ((obuf (current-buffer)))
+ (set-buffer gnus-dribble-buffer)
+ (insert string "\n")
+ (set-window-point (get-buffer-window (current-buffer)) (point-max))
+ (set-buffer obuf))))
+
+(defun gnus-dribble-read-file ()
+ (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)
+ (set-visited-file-name dribble-file)
+ (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))
+ (if (or (file-exists-p auto) (file-exists-p dribble-file))
+ (progn
+ (if (file-newer-than-file-p auto dribble-file)
+ (setq dribble-file auto))
+ (insert-file-contents dribble-file)
+ (if (not (zerop (buffer-size)))
+ (set-buffer-modified-p t))
+ (if (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 ()
+ (if (not 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 ()
+ (if (file-exists-p (gnus-dribble-file-name))
+ (delete-file (gnus-dribble-file-name)))
+ (if gnus-dribble-buffer
+ (save-excursion
+ (set-buffer gnus-dribble-buffer)
+ (let ((auto (make-auto-save-file-name)))
+ (if (file-exists-p auto)
+ (delete-file auto))
+ (erase-buffer)
+ (set-buffer-modified-p nil)))))
+
+(defun gnus-dribble-save ()
+ (if (and gnus-dribble-buffer
+ (buffer-name gnus-dribble-buffer))
+ (save-excursion
+ (set-buffer gnus-dribble-buffer)
+ (save-buffer))))
+
+(defun gnus-dribble-clear ()
+ (save-excursion
+ (if (gnus-buffer-exists-p gnus-dribble-buffer)
+ (progn
+ (set-buffer gnus-dribble-buffer)
+ (erase-buffer)
+ (set-buffer-modified-p nil)
+ (setq buffer-saved-size (buffer-size))))))
+
+;;;
+;;; Server Communication
+;;;
+
+(defun gnus-start-news-server (&optional confirm)
+ "Open a method for getting news.
+If CONFIRM is non-nil, the user will be asked for an NNTP server."
+ (let (how)
+ (if gnus-current-select-method
+ ;; Stream is already opened.
+ nil
+ ;; Open NNTP server.
+ (if (null gnus-nntp-service) (setq gnus-nntp-server nil))
+ (if confirm
+ (progn
+ ;; Read server name with completion.
+ (setq gnus-nntp-server
+ (completing-read "NNTP server: "
+ (mapcar (lambda (server) (list server))
+ (cons (list gnus-nntp-server)
+ gnus-secondary-servers))
+ nil nil gnus-nntp-server))))
+
+ (if (and gnus-nntp-server
+ (stringp gnus-nntp-server)
+ (not (string= gnus-nntp-server "")))
+ (setq gnus-select-method
+ (cond ((or (string= gnus-nntp-server "")
+ (string= gnus-nntp-server "::"))
+ (list 'nnspool (system-name)))
+ ((string-match "^:" gnus-nntp-server)
+ (list 'nnmh gnus-nntp-server
+ (list 'nnmh-directory
+ (file-name-as-directory
+ (expand-file-name
+ (concat "~/" (substring
+ gnus-nntp-server 1)))))
+ (list 'nnmh-get-new-mail nil)))
+ (t
+ (list 'nntp gnus-nntp-server)))))
+
+ (setq how (car gnus-select-method))
+ (cond ((eq how 'nnspool)
+ (require 'nnspool)
+ (gnus-message 5 "Looking up local news spool..."))
+ ((eq how 'nnmh)
+ (require 'nnmh)
+ (gnus-message 5 "Looking up mh spool..."))
+ (t
+ (require 'nntp)))
+ (setq gnus-current-select-method gnus-select-method)
+ (run-hooks 'gnus-open-server-hook)
+ (or
+ ;; gnus-open-server-hook might have opened it
+ (gnus-server-opened gnus-select-method)
+ (gnus-open-server gnus-select-method)
+ (gnus-y-or-n-p
+ (format
+ "%s open error: '%s'. Continue? "
+ (nth 1 gnus-select-method)
+ (gnus-status-message gnus-select-method)))
+ (progn
+ (gnus-message 1 "Couldn't open server on %s"
+ (nth 1 gnus-select-method))
+ (ding)
+ nil)))))
+
+(defun gnus-check-server (&optional method)
+ "If the news server is down, start it up again."
+ (let ((method (if method method gnus-select-method)))
+ (and (stringp method)
+ (setq method (gnus-server-to-method method)))
+ (if (gnus-server-opened method)
+ ;; Stream is already opened.
+ t
+ ;; Open server.
+ (gnus-message 5 "Opening server %s on %s..." (car method) (nth 1 method))
+ (run-hooks 'gnus-open-server-hook)
+ (prog1
+ (gnus-open-server method)
+ (message "")))))
+
+(defun gnus-nntp-message (&optional message)
+ "Check the status of the NNTP server.
+If the status of the server is clear and MESSAGE is non-nil, MESSAGE
+is returned insted of the status string."
+ (let ((status (gnus-status-message (gnus-find-method-for-group
+ gnus-newsgroup-name)))
+ (message (or message "")))
+ (if (and (stringp status) (> (length status) 0))
+ status message)))
+
+(defun gnus-get-function (method function)
+ (and (stringp method)
+ (setq method (gnus-server-to-method method)))
+ (let ((func (intern (format "%s-%s" (car method) function))))
+ (if (not (fboundp func))
+ (progn
+ (require (car method))
+ (if (not (fboundp func))
+ (error "No such function: %s" func))))
+ func))
+
+;;; Interface functions to the backends.
+
+(defun gnus-open-server (method)
+ (funcall (gnus-get-function method 'open-server)
+ (nth 1 method) (nthcdr 2 method)))
+
+(defun gnus-close-server (method)
+ (funcall (gnus-get-function method 'close-server) (nth 1 method)))
+
+(defun gnus-request-list (method)
+ (funcall (gnus-get-function method 'request-list) (nth 1 method)))
+
+(defun gnus-request-list-newsgroups (method)
+ (funcall (gnus-get-function method 'request-list-newsgroups) (nth 1 method)))
+
+(defun gnus-request-newgroups (date method)
+ (funcall (gnus-get-function method 'request-newgroups)
+ date (nth 1 method)))
+
+(defun gnus-server-opened (method)
+ (funcall (gnus-get-function method 'server-opened) (nth 1 method)))
+
+(defun gnus-status-message (method)
+ (let ((method (if (stringp method) (gnus-find-method-for-group method)
+ method)))
+ (funcall (gnus-get-function method 'status-message) (nth 1 method))))
+
+(defun gnus-request-group (group &optional dont-check)
+ (let ((method (gnus-find-method-for-group group)))
+ (funcall (gnus-get-function method 'request-group)
+ (gnus-group-real-name group) (nth 1 method) dont-check)))
+
+(defun gnus-request-asynchronous (group &optional articles)
+ (let ((method (gnus-find-method-for-group group)))
+ (funcall (gnus-get-function method 'request-asynchronous)
+ (gnus-group-real-name group) (nth 1 method) articles)))
+
+(defun gnus-list-active-group (group)
+ (let ((method (gnus-find-method-for-group group))
+ (func 'list-active-group))
+ (and (gnus-check-backend-function func group)
+ (funcall (gnus-get-function method func)
+ (gnus-group-real-name group) (nth 1 method)))))
+
+(defun gnus-request-group-description (group)
+ (let ((method (gnus-find-method-for-group group))
+ (func 'request-group-description))
+ (and (gnus-check-backend-function func group)
+ (funcall (gnus-get-function method func)
+ (gnus-group-real-name group) (nth 1 method)))))
+
+(defun gnus-close-group (group)
+ (let ((method (gnus-find-method-for-group group)))
+ (funcall (gnus-get-function method 'close-group)
+ (gnus-group-real-name group) (nth 1 method))))
+
+(defun gnus-retrieve-headers (articles group)
+ (let ((method (gnus-find-method-for-group group)))
+ (if (and gnus-use-cache (numberp (car articles)))
+ (gnus-cache-retrieve-headers articles group)
+ (funcall (gnus-get-function method 'retrieve-headers)
+ articles (gnus-group-real-name group) (nth 1 method)))))
+
+(defun gnus-retrieve-groups (groups method)
+ (funcall (gnus-get-function method 'retrieve-groups) groups (nth 1 method)))
+
+(defun gnus-request-article (article group &optional buffer)
+ (let ((method (gnus-find-method-for-group group)))
+ (funcall (gnus-get-function method 'request-article)
+ article (gnus-group-real-name group) (nth 1 method) buffer)))
+
+(defun gnus-request-head (article group)
+ (let ((method (gnus-find-method-for-group group)))
+ (funcall (gnus-get-function method 'request-head)
+ article (gnus-group-real-name group) (nth 1 method))))
+
+(defun gnus-request-body (article group)
+ (let ((method (gnus-find-method-for-group group)))
+ (funcall (gnus-get-function method 'request-body)
+ article (gnus-group-real-name group) (nth 1 method))))
+
+;; Fix by Sudish Joseph <joseph@cis.ohio-state.edu>.
+(defun gnus-request-post-buffer (post group subject header artbuf
+ info follow-to respect-poster)
+ (let* ((info (or info (and group (nth 2 (gnus-gethash
+ group gnus-newsrc-hashtb)))))
+ (method
+ (if (and gnus-post-method
+ ;; Fix by Sudish Joseph <joseph@cis.ohio-state.edu>.
+ (memq 'post (assoc
+ (format "%s" (car (gnus-find-method-for-group
+ gnus-newsgroup-name)))
+ gnus-valid-select-methods)))
+ gnus-post-method
+ (gnus-find-method-for-group gnus-newsgroup-name))))
+ (or (gnus-check-server method)
+ (error "Can't open server %s:%s" (car method) (nth 1 method)))
+ (let ((mail-self-blind nil)
+ (mail-archive-file-name nil))
+ (funcall (gnus-get-function method 'request-post-buffer)
+ post group subject header artbuf info follow-to
+ respect-poster))))
+
+(defun gnus-request-post (method &optional force)
+ (and (stringp method)
+ (setq method (gnus-server-to-method method)))
+ (and (not force) gnus-post-method
+ (memq 'post (assoc (format "%s" (car method))
+ gnus-valid-select-methods))
+ (setq method gnus-post-method))
+ (funcall (gnus-get-function method 'request-post)
+ (nth 1 method)))
+
+(defun gnus-request-expire-articles (articles group &optional force)
+ (let ((method (gnus-find-method-for-group group)))
+ (funcall (gnus-get-function method 'request-expire-articles)
+ articles (gnus-group-real-name group) (nth 1 method)
+ force)))
+
+(defun gnus-request-move-article
+ (article group server accept-function &optional last)
+ (let ((method (gnus-find-method-for-group group)))
+ (funcall (gnus-get-function method 'request-move-article)
+ article (gnus-group-real-name group)
+ (nth 1 method) accept-function last)))
+
+(defun gnus-request-accept-article (group &optional last)
+ (goto-char (point-max))
+ (or (bolp) (insert "\n"))
+ (let ((func (if (symbolp group) group
+ (car (gnus-find-method-for-group group)))))
+ (funcall (intern (format "%s-request-accept-article" func))
+ (if (stringp group) (gnus-group-real-name group) group)
+ last)))
+
+(defun gnus-request-replace-article (article group buffer)
+ (let ((func (car (gnus-find-method-for-group group))))
+ (funcall (intern (format "%s-request-replace-article" func))
+ article (gnus-group-real-name group) buffer)))
+
+(defun gnus-request-create-group (group)
+ (let ((method (gnus-find-method-for-group group)))
+ (funcall (gnus-get-function method 'request-create-group)
+ (gnus-group-real-name group) (nth 1 method))))
+
+(defun gnus-member-of-valid (symbol group)
+ (memq symbol (assoc
+ (format "%s" (car (gnus-find-method-for-group group)))
+ gnus-valid-select-methods)))
+
+(defun gnus-secondary-method-p (method)
+ (let ((methods gnus-secondary-select-methods)
+ (gmethod (gnus-server-get-method nil method)))
+ (while (and methods
+ (not (equal (gnus-server-get-method nil (car methods))
+ gmethod)))
+ (setq methods (cdr methods)))
+ methods))
+
+(defun gnus-find-method-for-group (group &optional info)
+ (or gnus-override-method
+ (and (not group)
+ gnus-select-method)
+ (let ((info (or info (nth 2 (gnus-gethash group gnus-newsrc-hashtb))))
+ method)
+ (if (or (not info)
+ (not (setq method (nth 4 info))))
+ (setq method gnus-select-method)
+ (setq method
+ (cond ((stringp method)
+ (gnus-server-to-method method))
+ ((stringp (car method))
+ (gnus-server-extend-method group method))
+ (t
+ method))))
+ (gnus-server-add-address method))))
+
+(defun gnus-check-backend-function (func group)
+ (let ((method (if (stringp group) (car (gnus-find-method-for-group group))
+ group)))
+ (fboundp (intern (format "%s-%s" method func)))))
+
+(defun gnus-methods-using (method)
+ (let ((valids gnus-valid-select-methods)
+ outs)
+ (while valids
+ (if (memq method (car valids))
+ (setq outs (cons (car valids) outs)))
+ (setq valids (cdr valids)))
+ outs))
+
+;;;
+;;; Active & Newsrc File Handling
+;;;
+
+;; Newsrc related functions.
+;; Gnus internal format of gnus-newsrc-alist:
+;; (("alt.general" 3 (1 . 1))
+;; ("alt.misc" 3 ((1 . 10) (12 . 15)))
+;; ("alt.test" 7 (1 . 99) (45 57 93)) ...)
+;; The first item is the group name; the second is the subscription
+;; level; the third is either a range of a list of ranges of read
+;; articles, the optional fourth element is a list of marked articles,
+;; the optional fifth element is the select method.
+;;
+;; Gnus internal format of gnus-newsrc-hashtb:
+;; (95 ("alt.general" 3 (1 . 1)) ("alt.misc" 3 ((1 . 10) (12 . 15))) ...)
+;; This is the entry for "alt.misc". The first element is the number
+;; of unread articles in "alt.misc". The cdr of this entry is the
+;; element *before* "alt.misc" in gnus-newsrc-alist, which makes is
+;; trivial to remove or add new elements into gnus-newsrc-alist
+;; without scanning the entire list. So, to get the actual information
+;; of "alt.misc", you'd say something like
+;; (nth 2 (gnus-gethash "alt.misc" gnus-newsrc-hashtb))
+;;
+;; Gnus internal format of gnus-active-hashtb:
+;; ((1 . 1))
+;; (5 . 10))
+;; (67 . 99)) ...)
+;; The only element in each entry in this hash table is a range of
+;; (possibly) available articles. (Articles in this range may have
+;; been expired or canceled.)
+;;
+;; Gnus internal format of gnus-killed-list and gnus-zombie-list:
+;; ("alt.misc" "alt.test" "alt.general" ...)
+
+(defun gnus-setup-news (&optional rawfile level)
+ "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)))))
+ ;; Clear some variables to re-initialize news information.
+ (if init (setq gnus-newsrc-alist nil
+ gnus-active-hashtb nil))
+
+ ;; Read the newsrc file and create `gnus-newsrc-hashtb'.
+ (if init (gnus-read-newsrc-file rawfile))
+
+ ;; If we don't read the complete active file, we fill in the
+ ;; hashtb here.
+ (if (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))
+
+ (or gnus-active-hashtb
+ (setq gnus-active-hashtb (make-vector 4095 0)))
+
+ ;; Possibly eval the dribble file.
+ (and init gnus-use-dribble-file (gnus-dribble-eval-file))
+
+ (gnus-update-format-specifications)
+
+ ;; Find new newsgroups and treat them.
+ (if (and init gnus-check-new-newsgroups gnus-read-active-file (not level)
+ (gnus-check-server gnus-select-method))
+ (gnus-find-new-newsgroups))
+
+ ;; 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 (or level (1+ gnus-level-subscribed))))
+
+ (if (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 ()
+ "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."
+ (interactive)
+ (or (gnus-check-first-time-used)
+ (if (or (consp gnus-check-new-newsgroups)
+ (eq gnus-check-new-newsgroups 'ask-server))
+ (gnus-ask-server-for-new-groups)
+ (let ((groups 0)
+ group new-newsgroups)
+ (gnus-message 5 "Looking for new newsgroups...")
+ (or gnus-have-read-active-file (gnus-read-active-file))
+ (setq gnus-newsrc-last-checked-date (current-time-string))
+ (if (not 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)))
+ (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
+ (setq new-newsgroups (cons group new-newsgroups))
+ (funcall gnus-subscribe-newsgroup-method group)))))))
+ gnus-active-hashtb)
+ (if new-newsgroups
+ (gnus-subscribe-hierarchical-interactive new-newsgroups))
+ ;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
+ (if (> groups 0)
+ (gnus-message 6 "%d new newsgroup%s arrived."
+ groups (if (> groups 1) "s have" " has"))
+ (gnus-message 6 "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-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 (car (car regs)) group)))
+ (setq regs (cdr regs)))
+ (and regs (cdr (car regs)))))))
+
+(defun gnus-ask-server-for-new-groups ()
+ (let* ((date (or gnus-newsrc-last-checked-date (current-time-string)))
+ (methods (cons gnus-select-method
+ (append
+ (and (consp gnus-check-new-newsgroups)
+ gnus-check-new-newsgroups)
+ gnus-secondary-select-methods)))
+ (groups 0)
+ (new-date (current-time-string))
+ (hashtb (gnus-make-hashtable 100))
+ group new-newsgroups got-new method)
+ ;; Go through both primary and secondary select methods and
+ ;; request new newsgroups.
+ (while methods
+ (setq method (gnus-server-get-method nil (car methods)))
+ (and (gnus-check-server method)
+ (gnus-request-newgroups date method)
+ (save-excursion
+ (setq got-new t)
+ (set-buffer nntp-server-buffer)
+ ;; Enter all the new groups in a hashtable.
+ (gnus-active-to-gnus-format method hashtb 'ignore)))
+ (setq methods (cdr methods)))
+ (and got-new (setq gnus-newsrc-last-checked-date new-date))
+ ;; Now all new groups from all select methods are in `hashtb'.
+ (mapatoms
+ (lambda (group-sym)
+ (setq group (symbol-name group-sym))
+ (if (or (null group)
+ (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.
+ ()
+ (and (symbol-value group-sym)
+ (gnus-sethash group (symbol-value group-sym) gnus-active-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
+ (setq new-newsgroups (cons group new-newsgroups))
+ (funcall gnus-subscribe-newsgroup-method group)))))))
+ hashtb)
+ (if new-newsgroups
+ (gnus-subscribe-hierarchical-interactive new-newsgroups))
+ ;; Suggested by Per Abrahamsen <amanda@iesd.auc.dk>.
+ (if (> groups 0)
+ (gnus-message 6 "%d new newsgroup%s arrived."
+ groups (if (> groups 1) "s have" " has")))
+ 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")
+ (or gnus-have-read-active-file (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
+ (setq gnus-killed-list (cons group gnus-killed-list)))))))
+ gnus-active-hashtb)
+ (while groups
+ (if (gnus-gethash (car groups) gnus-active-hashtb)
+ (gnus-group-change-level
+ (car groups) gnus-level-default-subscribed gnus-level-killed))
+ (setq groups (cdr groups)))
+ (gnus-group-make-help-group)
+ (and 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))
+ (if (and (stringp entry)
+ oldlevel
+ (< oldlevel gnus-level-zombie))
+ (setq entry (gnus-gethash entry gnus-newsrc-hashtb)))
+ (if (and (not oldlevel)
+ (consp entry))
+ (setq oldlevel (car (cdr (nth 2 entry)))))
+ (if (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.
+
+ (or (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
+ (if (and (>= level gnus-level-zombie)
+ entry)
+ (progn
+ (gnus-sethash (car (nth 2 entry)) nil gnus-newsrc-hashtb)
+ (if (nth 3 entry)
+ (setcdr (gnus-gethash (car (nth 3 entry))
+ gnus-newsrc-hashtb)
+ (cdr entry)))
+ (setcdr (cdr entry) (cdr (cdr (cdr 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)
+ (or (gnus-group-foreign-p group)
+ ;; We do not enter foreign groups into the list of dead
+ ;; groups.
+ (if (= level gnus-level-zombie)
+ (setq gnus-zombie-list (cons group gnus-zombie-list))
+ (setq gnus-killed-list (cons 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)
+ (progn
+ (if (listp entry)
+ (progn
+ (setq info (cdr entry))
+ (setq num (car entry)))
+ (setq active (gnus-gethash group gnus-active-hashtb))
+ (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 (gnus-group-method-name group)))
+ (if (eq method gnus-select-method)
+ (setq info (list group level nil))
+ (setq info (list group level nil nil method)))))
+ (or previous
+ (setq previous
+ (let ((p gnus-newsrc-alist))
+ (while (cdr (cdr p))
+ (setq p (cdr p)))
+ p)))
+ (setq entry (cons info (cdr (cdr 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))
+ (if (cdr entry)
+ (setcdr (gnus-gethash (car (car (cdr entry)))
+ gnus-newsrc-hashtb)
+ entry)))
+ ;; 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 (cdr (car (cdr (cdr entry)))) level)))))))
+
+(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)
+ (gnus-message 5 "Checking bogus newsgroups...")
+ (or gnus-have-read-active-file (gnus-read-active-file))
+ ;; Find all bogus newsgroup that are subscribed.
+ (while newsrc
+ (setq group (car (car newsrc)))
+ (if (or (gnus-gethash group gnus-active-hashtb) ; Active
+ (nth 4 (car newsrc)) ; Foreign
+ (and confirm
+ (not (gnus-y-or-n-p
+ (format "Remove bogus newsgroup: %s " group)))))
+ ;; Don't remove.
+ ()
+ ;; Found a bogus newsgroup.
+ (setq bogus (cons group bogus)))
+ (setq newsrc (cdr newsrc)))
+ ;; Remove all bogus subscribed groups by first killing them, and
+ ;; then removing them from the list of killed groups.
+ (while bogus
+ (and (setq entry (gnus-gethash (car bogus) gnus-newsrc-hashtb))
+ (progn
+ (gnus-group-change-level entry gnus-level-killed)
+ (setq gnus-killed-list (delete (car bogus) gnus-killed-list))))
+ (setq bogus (cdr bogus)))
+ ;; Then we remove all bogus groups from the list of killed and
+ ;; zombie groups. They are 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
+ (setq group (car killed))
+ (or (gnus-gethash group gnus-active-hashtb)
+ ;; The group is bogus.
+ (set (car dead-lists)
+ (delete group (symbol-value (car dead-lists)))))
+ (setq killed (cdr killed)))
+ (setq dead-lists (cdr dead-lists))))
+ (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)))))
+
+;; 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 (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 virtuals method)
+ (gnus-message 5 "Checking new news...")
+
+ (while newsrc
+ (setq info (car newsrc)
+ group (car info)
+ active (gnus-gethash group gnus-active-hashtb))
+
+ ;; 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 (nth 4 info))
+ (not (gnus-server-equal gnus-select-method
+ (gnus-server-get-method nil method)))
+ (not (gnus-secondary-method-p method)))
+ ;; These groups are foreign. Check the level.
+ (if (<= (nth 1 info) foreign-level)
+ (if (eq (car (if (stringp method)
+ (gnus-server-to-method method)
+ (nth 4 info))) 'nnvirtual)
+ ;; We have to activate the virtual groups after all
+ ;; the others, so we just pop them on a list for
+ ;; now.
+ (setq virtuals (cons info virtuals))
+ (and (setq active (gnus-activate-group (car info)))
+ ;; Close the groups as we look at them!
+ (gnus-close-group group))))
+
+ ;; These groups are native or secondary.
+ (if (and (not gnus-read-active-file)
+ (<= (nth 1 info) level))
+ (progn
+ (or gnus-read-active-file (gnus-check-server method))
+ (setq active (gnus-activate-group (car info))))))
+
+ (if active
+ (gnus-get-unread-articles-in-group info active)
+ ;; The group couldn't be reached, so we nix out the number of
+ ;; unread articles and stuff.
+ (gnus-sethash group nil gnus-active-hashtb)
+ (setcar (gnus-gethash group gnus-newsrc-hashtb) t))
+
+ (setq newsrc (cdr newsrc)))
+
+ ;; Activate the virtual groups. This has to be done after all the
+ ;; other groups.
+ ;; !!! If one virtual group contains another virtual group, even
+ ;; doing it this way might cause problems.
+ (while virtuals
+ (and (setq active (gnus-activate-group (car (car virtuals))))
+ (gnus-get-unread-articles-in-group (car virtuals) active))
+ (setq virtuals (cdr virtuals)))
+
+ (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 (car (car gnus-newsrc-alist))
+ "dummy.group")
+ gnus-newsrc-alist
+ (cons (list "dummy.group" 0 nil) alist)))))
+ (while alist
+ (gnus-sethash (car (car alist))
+ (cons (and ohashtb (car (gnus-gethash
+ (car (car 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 (car lists)))
+ (setq lists (cdr lists))
+ (while list
+ (gnus-sethash (car list) (car list) gnus-killed-hashtb)
+ (setq list (cdr list))))))
+
+(defun gnus-get-unread-articles-in-group (info active)
+ (let* ((range (nth 2 info))
+ (num 0)
+ (marked (nth 3 info)))
+ ;; If a cache is present, we may have to alter the active info.
+ (and gnus-use-cache
+ (gnus-cache-possibly-alter-active (car 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 (car (cdr range))) (car (cdr range)))
+ (car (car (cdr range))))))
+ (if (numberp (car range))
+ (setcar range
+ (cons (car range)
+ (or (and (numberp (car (cdr range)))
+ (car (cdr range)))
+ (cdr (car (cdr range))))))
+ (setcdr (car range)
+ (or (and (numberp (nth 1 range)) (nth 1 range))
+ (cdr (car (cdr range))))))
+ (setcdr range (cdr (cdr range))))
+ ;; Adjust the first element to be the same as the lower limit.
+ (if (and (not (atom (car range)))
+ (< (cdr (car 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 (car (cdr srange)))
+ (car (cdr srange)))
+ (car (car (cdr srange)))) (cdr active)))
+ (setq srange (cdr srange)))
+ (if (cdr srange)
+ ;; Nuke all remaining illegal elements.
+ (setcdr srange nil))
+
+ ;; Adjust the final element.
+ (if (and (not (atom (car srange)))
+ (> (cdr (car 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))
+ (cdr (car range))))
+ (or (and (atom (car range)) (car range))
+ (car (car range))))))
+ (setq range (cdr range)))
+ (setq num (max 0 (- (cdr active) num)))))
+ (and info
+ (progn
+ (and (assq 'tick marked)
+ (inline (gnus-remove-illegal-marked-articles
+ (assq 'tick marked) (nth 2 info))))
+ (and (assq 'dormant marked)
+ (inline (gnus-remove-illegal-marked-articles
+ (assq 'dormant marked) (nth 2 info))))
+ (setcar
+ (gnus-gethash (car info) gnus-newsrc-hashtb)
+ (setq num (max 0 (- num (length (cdr (assq 'tick marked)))
+ (length (cdr (assq 'dormant marked)))))))))
+ num))
+
+(defun gnus-remove-illegal-marked-articles (marked ranges)
+ (let ((m (cdr marked)))
+ ;; Make sure that all ticked articles are a subset of the unread
+ ;; articles.
+ (while m
+ (if (gnus-member-of-range (car m) ranges)
+ (setcdr marked (cdr m))
+ (setq marked m))
+ (setq m (cdr m)))))
+
+(defun gnus-activate-group (group)
+ ;; Check whether a group has been activated or not.
+ (let ((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.
+ (condition-case ()
+ (gnus-request-group group)
+ (error nil)
+ (quit nil))
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ (goto-char (point-min))
+ ;; Parse the result we got from `gnus-request-group'.
+ (and (looking-at "[0-9]+ [0-9]+ \\([0-9]+\\) [0-9]+")
+ (progn
+ (goto-char (match-beginning 1))
+ (gnus-sethash
+ group (setq active (cons (read (current-buffer))
+ (read (current-buffer))))
+ gnus-active-hashtb))
+ ;; Return the new active info.
+ active)))))
+
+(defun gnus-update-read-articles
+ (group unread unselected ticked &optional domarks replied expirable killed
+ dormant bookmark score)
+ "Update the list of read and ticked articles in GROUP using the
+UNREAD and TICKED lists.
+Note: UNSELECTED has to be sorted over `<'.
+Returns whether the updating was successful."
+ (let* ((active (or gnus-newsgroup-active
+ (gnus-gethash group gnus-active-hashtb)))
+ (entry (gnus-gethash group gnus-newsrc-hashtb))
+ (info (nth 2 entry))
+ (marked (nth 3 info))
+ (prev 1)
+ (unread (sort (copy-sequence unread) (function <)))
+ read)
+ (if (or (not info) (not active))
+ ;; There is no info on this group if it was, in fact,
+ ;; killed. Gnus stores no information on killed groups, so
+ ;; there's nothing to be done.
+ ;; One could store the information somewhere temporarily,
+ ;; perhaps... Hmmm...
+ ()
+ ;; Remove any negative articles numbers.
+ (while (and unread (< (car unread) 0))
+ (setq unread (cdr unread)))
+ ;; Remove any expired article numbers
+ (while (and unread (< (car unread) (car active)))
+ (setq unread (cdr unread)))
+ (while (and ticked (< (car ticked) (car active)))
+ (setq ticked (cdr ticked)))
+ (while (and dormant (< (car dormant) (car active)))
+ (setq dormant (cdr dormant)))
+ (setq unread (sort (append unselected unread) '<))
+ ;; Weed out duplicates.
+ (let ((un unread))
+ (while (cdr un)
+ (if (eq (car un) (car (cdr un)))
+ (setcdr un (cdr (cdr un)))
+ (setq un (cdr un)))))
+ ;; Compute the ranges of read articles by looking at the list of
+ ;; unread articles.
+ (while unread
+ (if (/= (car unread) prev)
+ (setq read (cons (if (= prev (1- (car unread))) prev
+ (cons prev (1- (car unread)))) read)))
+ (setq prev (1+ (car unread)))
+ (setq unread (cdr unread)))
+ (if (<= prev (cdr active))
+ (setq read (cons (cons prev (cdr active)) read)))
+ ;; Enter this list into the group info.
+ (setcar (cdr (cdr info))
+ (if (> (length read) 1) (nreverse read) read))
+ ;; Enter the list of ticked articles.
+ (gnus-set-marked-articles
+ info ticked
+ (if domarks replied (cdr (assq 'reply marked)))
+ (if domarks expirable (cdr (assq 'expire marked)))
+ (if domarks killed (cdr (assq 'killed marked)))
+ (if domarks dormant (cdr (assq 'dormant marked)))
+ (if domarks bookmark (cdr (assq 'bookmark marked)))
+ (if domarks score (cdr (assq 'score marked))))
+ ;; Set the number of unread articles in gnus-newsrc-hashtb.
+ (gnus-get-unread-articles-in-group
+ info (gnus-gethash group gnus-active-hashtb))
+ t)))
+
+(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 (nth 2 info))
+ news)
+ (while articles
+ (and (gnus-member-of-range (car articles) ranges)
+ (setq news (cons (car articles) news)))
+ (setq articles (cdr articles)))
+ (if (not news)
+ ()
+ (setcar (nthcdr 2 info)
+ (gnus-remove-from-range (nth 2 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 (make-vector 4095 0)))
+ (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)))))
+
+;; Get the active file(s) from the backend(s).
+(defun gnus-read-active-file ()
+ (gnus-group-set-mode-line)
+ (let ((methods (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))
+ list-type)
+ (setq gnus-have-read-active-file nil)
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ (while methods
+ (let* ((method (gnus-server-get-method nil (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)
+ (if (not (gnus-check-server 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)
+ (while newsrc
+ (and (gnus-server-equal
+ (gnus-find-method-for-group
+ (car (car newsrc)) (car newsrc))
+ gmethod)
+ (setq groups (cons (gnus-group-real-name
+ (car (car newsrc))) groups)))
+ (setq newsrc (cdr newsrc)))
+ (gnus-check-server method)
+ (setq list-type (gnus-retrieve-groups groups method))
+ (cond
+ ((not list-type)
+ (gnus-message
+ 1 "Cannot read partial active file from %s server."
+ (car method))
+ (ding)
+ (sit-for 2))
+ ((eq list-type 'active)
+ (gnus-active-to-gnus-format method gnus-active-hashtb))
+ (t
+ (gnus-groups-to-gnus-format method gnus-active-hashtb)))))
+ (t
+ (if (not (gnus-request-list method))
+ (progn
+ (gnus-message 1 "Cannot read active file from %s server."
+ (car method))
+ (ding))
+ (gnus-active-to-gnus-format method)
+ ;; We mark this active file as read.
+ (setq gnus-have-read-active-file
+ (cons method gnus-have-read-active-file))
+ (gnus-message 5 "%sdone" mesg))))))
+ (setq methods (cdr methods))))))
+
+;; Read an active file and place the results in `gnus-active-hashtb'.
+(defun gnus-active-to-gnus-format (method &optional hashtb ignore-errors)
+ (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))))))
+ (flag-hashtb (gnus-make-hashtable 60)))
+ ;; Delete unnecessary lines.
+ (goto-char (point-min))
+ (while (search-forward "\nto." nil t)
+ (delete-region (1+ (match-beginning 0))
+ (progn (forward-line 1) (point))))
+ (or (string= gnus-ignored-newsgroups "")
+ (progn
+ (goto-char (point-min))
+ (delete-matching-lines 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))
+ (if (string-match "%[oO]" gnus-group-line-format)
+ ;; Suggested by Brian Edmonds <edmonds@cs.ubc.ca>.
+ ;; If we want information on moderated groups, we use this
+ ;; loop...
+ (let* ((mod-hashtb (make-vector 7 0))
+ (m (intern "m" mod-hashtb))
+ group max min)
+ (while (not (eobp))
+ (condition-case nil
+ (progn
+ (narrow-to-region (point) (gnus-point-at-eol))
+ (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)))))
+ (set group (cons min max))
+ (set group nil))
+ ;; Enter moderated groups into a list.
+ (if (eq (let ((obarray mod-hashtb)) (read cur)) m)
+ (setq gnus-moderated-list
+ (cons (symbol-name group) gnus-moderated-list))))
+ (error
+ (and group
+ (symbolp group)
+ (set group nil))))
+ (widen)
+ (forward-line 1)))
+ ;; And if we do not care about moderation, we use this loop,
+ ;; which is faster.
+ (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)))))
+ (set group (cons min max))
+ (set group nil)))
+ (error
+ (progn
+ (and group
+ (symbolp group)
+ (set group nil))
+ (or 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 ()
+ (if (= (following-char) ?2)
+ (progn
+ (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)
+
+ (if (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 -
+ ;; ie. 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 (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))))))
+
+(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 nil))
+ (and gnus-newsrc-assoc (setq gnus-newsrc-alist gnus-newsrc-assoc)))
+ (let ((inhibit-quit t))
+ (gnus-uncompress-newsrc-alist))
+ (gnus-make-hashtable-from-newsrc-alist)
+ (if (not (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)
+ (prog1
+ (let ((gnus-killed-assoc nil)
+ gnus-marked-assoc gnus-newsrc-alist gnus-newsrc-assoc)
+ (prog1
+ (condition-case nil
+ (load file t t t)
+ (error nil))
+ (setq newsrc gnus-newsrc-assoc
+ killed gnus-killed-assoc
+ marked gnus-marked-assoc)))
+ (setq gnus-newsrc-alist nil)
+ (while newsrc
+ (setq group (car newsrc))
+ (let ((info (nth 2 (gnus-gethash (car group) gnus-newsrc-hashtb))))
+ (if info
+ (progn
+ (setcar (nthcdr 2 info) (cdr (cdr group)))
+ (setcar (cdr info)
+ (if (nth 1 group) gnus-level-default-subscribed
+ gnus-level-default-unsubscribed))
+ (setq gnus-newsrc-alist (cons info gnus-newsrc-alist)))
+ (setq gnus-newsrc-alist
+ (cons
+ (setq info
+ (list (car group)
+ (if (nth 1 group) gnus-level-default-subscribed
+ gnus-level-default-unsubscribed)
+ (cdr (cdr group))))
+ gnus-newsrc-alist)))
+ (if (setq m (assoc (car group) marked))
+ (setcdr (cdr (cdr info))
+ (cons (list (cons 'tick (cdr m))) nil))))
+ (setq newsrc (cdr newsrc)))
+ (setq newsrc killed)
+ (while newsrc
+ (setcar newsrc (car (car 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.
+ (and
+ gnus-newsrc-options
+ (progn
+ (and (not (string-match "^ *options" gnus-newsrc-options))
+ (setq gnus-newsrc-options (concat "options " gnus-newsrc-options)))
+ (and (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.
+ (or (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-uncompress-newsrc-alist ()
+ ;; Uncompress all lists of marked articles in the newsrc assoc.
+ (let ((newsrc gnus-newsrc-alist)
+ marked)
+ (while newsrc
+ (if (not (setq marked (nth 3 (car newsrc))))
+ ()
+ (while marked
+ (or (eq 'score (car (car marked)))
+ (eq 'bookmark (car (car marked)))
+ (eq 'killed (car (car marked)))
+ (setcdr (car marked) (gnus-uncompress-range (cdr (car marked)))))
+ (setq marked (cdr marked))))
+ (setq newsrc (cdr newsrc)))))
+
+(defun gnus-compress-newsrc-alist ()
+ ;; Compress all lists of marked articles in the newsrc assoc.
+ (let ((newsrc gnus-newsrc-alist)
+ marked)
+ (while newsrc
+ (if (not (setq marked (nth 3 (car newsrc))))
+ ()
+ (while marked
+ (or (eq 'score (car (car marked)))
+ (eq 'bookmark (car (car marked)))
+ (eq 'killed (car (car marked)))
+ (setcdr (car marked)
+ (condition-case ()
+ (gnus-compress-sequence
+ (sort (cdr (car marked)) '<) t)
+ (error (cdr (car marked))))))
+ (setq marked (cdr marked))))
+ (setq newsrc (cdr newsrc)))))
+
+(defun gnus-newsrc-to-gnus-format ()
+ (setq gnus-newsrc-options "")
+ (setq gnus-newsrc-options-n nil)
+
+ (or gnus-active-hashtb
+ (setq gnus-active-hashtb (make-vector 4095 0)))
+ (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
+ (or (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?
+ (setq reads (cons num1 reads))
+ (setq reads
+ (cons
+ (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.
+ (setq reads (cons 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...
+ (or (eobp)
+ ;; If it was eob instead of ?\n, we allow it.
+ (progn
+ ;; The line was buggy.
+ (setq group nil)
+ (gnus-message 3 "Mangled line: %s"
+ (buffer-substring (gnus-point-at-bol)
+ (gnus-point-at-eol)))
+ (ding)
+ (sit-for 1)))
+ 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.
+ (if (not group)
+ ()
+ (let ((info (nth 2 (gnus-gethash group gnus-newsrc-hashtb)))
+ level)
+ (if info
+ ;; There is an entry for this file in the alist.
+ (progn
+ (setcar (nthcdr 2 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 (nth 1 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)))
+ (setcar (cdr 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))))
+ (setq newsrc (cons 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 (car (car rc)) newsrc) ; It's already in the alist.
+ (if (setq entry (assoc (car (car prev)) newsrc))
+ (setcdr (setq mentry (memq entry newsrc))
+ (cons (car rc) (cdr mentry)))
+ (setq newsrc (cons (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.
+ (or (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.
+ (setq out (cons (cons (concat
+ "^" (buffer-substring
+ (1+ (match-beginning 0))
+ (match-end 0)))
+ 'ignore) out))
+ ;; There was no bang, so this is a "yes" spec.
+ (setq out (cons (cons (concat
+ "^" (buffer-substring (match-beginning 0)
+ (match-end 0)))
+ 'subscribe) out)))))
+
+ (setq gnus-newsrc-options-n out))))
+
+
+(defun gnus-save-newsrc-file ()
+ "Save .newsrc file."
+ ;; Note: We cannot save .newsrc file if all newsgroups are removed
+ ;; from the variable gnus-newsrc-alist.
+ (and (or gnus-newsrc-alist gnus-killed-list)
+ gnus-current-startup-file
+ (progn
+ (run-hooks 'gnus-save-newsrc-hook)
+ (save-excursion
+ (if (and gnus-use-dribble-file
+ (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)")
+ (if gnus-save-newsrc-file
+ (progn
+ (gnus-message 5 "Saving %s..." gnus-current-startup-file)
+ ;; Make backup file of master newsrc.
+ (gnus-gnus-to-newsrc-format)
+ (gnus-message 5 "Saving %s...done"
+ gnus-current-startup-file)))
+ ;; Quickly loadable .newsrc.
+ (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"))
+ (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)
+ (save-buffer)
+ (kill-buffer (current-buffer))
+ (gnus-message 5 "Saving %s.eld...done" gnus-current-startup-file)
+ (gnus-dribble-delete-file))))))
+
+(defun gnus-gnus-to-quick-newsrc-format ()
+ "Insert Gnus variables such as gnus-newsrc-alist in lisp format."
+ (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 ((variables gnus-variable-list)
+ (inhibit-quit t)
+ (gnus-newsrc-alist (cdr gnus-newsrc-alist))
+ variable)
+ ;; insert lisp expressions.
+ (gnus-compress-newsrc-alist)
+ (while variables
+ (setq variable (car variables))
+ (and (boundp variable)
+ (symbol-value variable)
+ (or gnus-save-killed-list (not (eq variable 'gnus-killed-list)))
+ (insert "(setq " (symbol-name variable) " '"
+ (prin1-to-string (symbol-value variable))
+ ")\n"))
+ (setq variables (cdr variables)))
+ (gnus-uncompress-newsrc-alist)))
+
+
+(defun gnus-gnus-to-newsrc-format ()
+ ;; Generate and save the .newsrc file.
+ (let ((newsrc (cdr gnus-newsrc-alist))
+ info ranges range)
+ (save-excursion
+ (set-buffer (create-file-buffer gnus-current-startup-file))
+ (setq buffer-file-name gnus-current-startup-file)
+ (buffer-disable-undo (current-buffer))
+ (erase-buffer)
+ ;; Write options.
+ (if gnus-newsrc-options (insert gnus-newsrc-options))
+ ;; Write subscribed and unsubscribed.
+ (while newsrc
+ (setq info (car newsrc))
+ (if (not (nth 4 info)) ;Don't write foreign groups to .newsrc.
+ (progn
+ (insert (car info) (if (> (nth 1 info) gnus-level-subscribed)
+ "!" ":"))
+ (if (setq ranges (nth 2 info))
+ (progn
+ (insert " ")
+ (if (not (listp (cdr ranges)))
+ (if (= (car ranges) (cdr ranges))
+ (insert (int-to-string (car ranges)))
+ (insert (int-to-string (car ranges)) "-"
+ (int-to-string (cdr ranges))))
+ (while ranges
+ (setq range (car ranges)
+ ranges (cdr ranges))
+ (if (or (atom range) (= (car range) (cdr range)))
+ (insert (int-to-string
+ (or (and (atom range) range)
+ (car range))))
+ (insert (int-to-string (car range)) "-"
+ (int-to-string (cdr range))))
+ (if ranges (insert ","))))))
+ (insert "\n")))
+ (setq newsrc (cdr newsrc)))
+ (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))
+ (save-buffer)
+ (kill-buffer (current-buffer)))))
+
+(defun gnus-read-all-descriptions-files ()
+ (let ((methods (cons gnus-select-method 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)))
+ ;; We create the hashtable whether we manage to read the desc file
+ ;; to avoid trying to re-read after a failed read.
+ (or 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
+ (let (group)
+ (save-excursion
+ (save-restriction
+ (set-buffer nntp-server-buffer)
+ (goto-char (point-min))
+ (if (or (search-forward "\n.\n" nil t)
+ (goto-char (point-max)))
+ (progn
+ (beginning-of-line)
+ (narrow-to-region (point-min) (point))))
+ (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.
+ (and (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.
+ (and (gnus-request-group-description group)
+ (save-excursion
+ (set-buffer nntp-server-buffer)
+ (goto-char (point-min))
+ (and (looking-at "[^ \t]+[ \t]+\\(.*\\)")
+ (buffer-substring (match-beginning 1) (match-end 1))))))
+
+;;;
+;;; Server
+;;;
+
+(defvar gnus-server-mode-hook nil
+ "Hook run in `gnus-server-mode' buffers.")
+
+(defconst gnus-server-line-format " {%(%h:%w%)}\n"
+ "Format of server lines.
+It works along the same lines as a normal formatting string,
+with some simple extensions.")
+
+(defvar gnus-server-mode-line-format "Gnus List of servers"
+ "The format specification for the server mode line.")
+
+(defconst gnus-server-line-format-alist
+ (list (list ?h 'how ?s)
+ (list ?n 'name ?s)
+ (list ?w 'where ?s)
+ ))
+
+(defconst gnus-server-mode-line-format-alist
+ (list (list ?S 'news-server ?s)
+ (list ?M 'news-method ?s)
+ (list ?u 'user-defined ?s)))
+
+(defvar gnus-server-line-format-spec nil)
+(defvar gnus-server-mode-line-format-spec nil)
+(defvar gnus-server-killed-servers nil)
+
+(defvar gnus-server-mode-map nil)
+(put 'gnus-server-mode 'mode-class 'special)
+
+(if gnus-server-mode-map
+ nil
+ (setq gnus-server-mode-map (make-sparse-keymap))
+ (suppress-keymap gnus-server-mode-map)
+ (define-key gnus-server-mode-map " " 'gnus-server-read-server)
+ (define-key gnus-server-mode-map "\r" 'gnus-server-read-server)
+ (define-key gnus-server-mode-map gnus-mouse-2 'gnus-server-pick-server)
+ (define-key gnus-server-mode-map "q" 'gnus-server-exit)
+ (define-key gnus-server-mode-map "l" 'gnus-server-list-servers)
+ (define-key gnus-server-mode-map "k" 'gnus-server-kill-server)
+ (define-key gnus-server-mode-map "y" 'gnus-server-yank-server)
+ (define-key gnus-server-mode-map "c" 'gnus-server-copy-server)
+ (define-key gnus-server-mode-map "a" 'gnus-server-add-server)
+ (define-key gnus-server-mode-map "e" 'gnus-server-edit-server))
+
+(defun gnus-server-mode ()
+ "Major mode for listing and editing servers.
+
+All normal editing commands are switched off.
+\\<gnus-server-mode-map>
+
+For more in-depth information on this mode, read the manual (`\\[gnus-info-find-node]').
+
+The following commands are available:
+
+\\{gnus-server-mode-map}"
+ (interactive)
+ (if gnus-visual (gnus-server-make-menu-bar))
+ (kill-all-local-variables)
+ (gnus-simplify-mode-line)
+ (setq major-mode 'gnus-server-mode)
+ (setq mode-name "Server")
+ ; (gnus-group-set-mode-line)
+ (setq mode-line-process nil)
+ (use-local-map gnus-server-mode-map)
+ (buffer-disable-undo (current-buffer))
+ (setq truncate-lines t)
+ (setq buffer-read-only t)
+ (run-hooks 'gnus-server-mode-hook))
+
+(defun gnus-server-insert-server-line (sformat name method)
+ (let* ((sformat (or sformat gnus-server-line-format-spec))
+ (how (car method))
+ (where (nth 1 method))
+ b)
+ (beginning-of-line)
+ (setq b (point))
+ ;; Insert the text.
+ (insert (eval sformat))
+ (add-text-properties b (1+ b) (list 'gnus-server (intern name)))))
+
+(defun gnus-server-setup-buffer ()
+ (if (get-buffer gnus-server-buffer)
+ ()
+ (save-excursion
+ (set-buffer (get-buffer-create gnus-server-buffer))
+ (gnus-server-mode)
+ (and gnus-carpal (gnus-carpal-setup-buffer 'server)))))
+
+(defun gnus-server-prepare ()
+ (setq gnus-server-mode-line-format-spec
+ (gnus-parse-format gnus-server-mode-line-format
+ gnus-server-mode-line-format-alist))
+ (setq gnus-server-line-format-spec
+ (gnus-parse-format gnus-server-line-format
+ gnus-server-line-format-alist))
+ (let ((alist gnus-server-alist)
+ (buffer-read-only nil))
+ (erase-buffer)
+ (while alist
+ (gnus-server-insert-server-line nil (car (car alist)) (cdr (car alist)))
+ (setq alist (cdr alist))))
+ (goto-char (point-min))
+ (gnus-server-position-cursor))
+
+(defun gnus-server-server-name ()
+ (let ((server (get-text-property (gnus-point-at-bol) 'gnus-server)))
+ (and server (symbol-name server))))
+
+(defalias 'gnus-server-position-cursor 'gnus-goto-colon)
+
+(defconst gnus-server-edit-buffer "*Gnus edit server*")
+
+(defun gnus-server-update-server (server)
+ (save-excursion
+ (set-buffer gnus-server-buffer)
+ (let ((buffer-read-only nil)
+ (info (cdr (assoc server gnus-server-alist))))
+ (gnus-dribble-enter
+ (concat "(gnus-server-set-info \"" server "\" '"
+ (prin1-to-string info) ")"))
+ ;; Buffer may be narrowed.
+ (save-restriction
+ (widen)
+ (if (gnus-server-goto-server server)
+ (delete-region (progn (beginning-of-line) (point))
+ (progn (forward-line 1) (point))))
+ (let ((entry (assoc server gnus-server-alist)))
+ (gnus-server-insert-server-line nil (car entry) (cdr entry))
+ (gnus-server-position-cursor))))))
+
+(defun gnus-server-set-info (server info)
+ ;; Enter a select method into the virtual server alist.
+ (gnus-dribble-enter
+ (concat "(gnus-server-set-info \"" server "\" '"
+ (prin1-to-string info) ")"))
+ (let* ((server (nth 1 info))
+ (entry (assoc server gnus-server-alist)))
+ (if entry (setcdr entry info)
+ (setq gnus-server-alist
+ (nconc gnus-server-alist (list (cons server info)))))))
+
+(defun gnus-server-to-method (server)
+ ;; Map virtual server names to select methods.
+ (or (and (equal server "native") gnus-select-method)
+ (cdr (assoc server gnus-server-alist))))
+
+(defun gnus-server-extend-method (group method)
+ ;; This function "extends" a virtual server. If the server is
+ ;; "hello", and the select method is ("hello" (my-var "something"))
+ ;; in the group "alt.alt", this will result in a new virtual server
+ ;; called "helly+alt.alt".
+ (let ((entry
+ (gnus-copy-sequence
+ (if (equal (car method) "native") gnus-select-method
+ (cdr (assoc (car method) gnus-server-alist))))))
+ (setcar (cdr entry) (concat (nth 1 entry) "+" group))
+ (nconc entry (cdr method))))
+
+(defun gnus-server-get-method (group method)
+ ;; Input either a server name, and extended server name, or a
+ ;; select method, and return a select method.
+ (cond ((stringp method)
+ (gnus-server-to-method method))
+ ((and (stringp (car method)) group)
+ (gnus-server-extend-method group method))
+ (t
+ (gnus-server-add-address method))))
+
+(defun gnus-server-add-address (method)
+ (let ((method-name (symbol-name (car method))))
+ (if (and (memq 'address (assoc method-name gnus-valid-select-methods))
+ (not (assq (intern (concat method-name "-address")) method)))
+ (append method (list (list (intern (concat method-name "-address"))
+ (nth 1 method))))
+ method)))
+
+(defun gnus-server-equal (s1 s2)
+ (or (equal s1 s2)
+ (and (= (length s1) (length s2))
+ (progn
+ (while (and s1 (member (car s1) s2))
+ (setq s1 (cdr s1)))
+ (null s1)))))
+
+;;; Interactive server functions.
+
+(defun gnus-server-kill-server (server)
+ "Kill the server on the current line."
+ (interactive (list (gnus-server-server-name)))
+ (or (gnus-server-goto-server server)
+ (if server (error "No such server: %s" server)
+ (error "No server on the current line")))
+ (gnus-dribble-enter "")
+ (let ((buffer-read-only nil))
+ (delete-region (progn (beginning-of-line) (point))
+ (progn (forward-line 1) (point))))
+ (setq gnus-server-killed-servers
+ (cons (assoc server gnus-server-alist) gnus-server-killed-servers))
+ (setq gnus-server-alist (delq (car gnus-server-killed-servers)
+ gnus-server-alist))
+ (gnus-server-position-cursor))
+
+(defun gnus-server-yank-server ()
+ "Yank the previously killed server."
+ (interactive)
+ (or gnus-server-killed-servers
+ (error "No killed servers to be yanked"))
+ (let ((alist gnus-server-alist)
+ (server (gnus-server-server-name))
+ (killed (car gnus-server-killed-servers)))
+ (if (not server)
+ (setq gnus-server-alist (nconc gnus-server-alist (list killed)))
+ (if (string= server (car (car gnus-server-alist)))
+ (setq gnus-server-alist (cons killed gnus-server-alist))
+ (while (and (cdr alist)
+ (not (string= server (car (car (cdr alist))))))
+ (setq alist (cdr alist)))
+ (setcdr alist (cons killed (cdr alist)))))
+ (gnus-server-update-server (car killed))
+ (setq gnus-server-killed-servers (cdr gnus-server-killed-servers))
+ (gnus-server-position-cursor)))
+
+(defun gnus-server-exit ()
+ "Return to the group buffer."
+ (interactive)
+ (kill-buffer (current-buffer))
+ (switch-to-buffer gnus-group-buffer))
+
+(defun gnus-server-list-servers ()
+ "List all available servers."
+ (interactive)
+ (let ((cur (gnus-server-server-name)))
+ (gnus-server-prepare)
+ (if cur (gnus-server-goto-server cur)
+ (goto-char (point-max))
+ (forward-line -1))
+ (gnus-server-position-cursor)))
+
+(defun gnus-server-copy-server (from to)
+ (interactive
+ (list
+ (or (gnus-server-server-name)
+ (error "No server on the current line"))
+ (read-string "Copy to: ")))
+ (or from (error "No server on current line"))
+ (or (and to (not (string= to ""))) (error "No name to copy to"))
+ (and (assoc to gnus-server-alist) (error "%s already exists" to))
+ (or (assoc from gnus-server-alist)
+ (error "%s: no such server" from))
+ (let ((to-entry (gnus-copy-sequence (assoc from gnus-server-alist))))
+ (setcar to-entry to)
+ (setcar (nthcdr 2 to-entry) to)
+ (setq gnus-server-killed-servers
+ (cons to-entry gnus-server-killed-servers))
+ (gnus-server-yank-server)))
+
+(defun gnus-server-add-server (how where)
+ (interactive
+ (list (intern (completing-read "Server method: "
+ gnus-valid-select-methods nil t))
+ (read-string "Server name: ")))
+ (setq gnus-server-killed-servers
+ (cons (list where how where) gnus-server-killed-servers))
+ (gnus-server-yank-server))
+
+(defun gnus-server-goto-server (server)
+ "Jump to a server line."
+ (interactive
+ (list (completing-read "Goto server: " gnus-server-alist nil t)))
+ (let ((to (text-property-any (point-min) (point-max)
+ 'gnus-server (intern server))))
+ (and to
+ (progn
+ (goto-char to)
+ (gnus-server-position-cursor)))))
+
+(defun gnus-server-edit-server (server)
+ "Edit the server on the current line."
+ (interactive (list (gnus-server-server-name)))
+ (or server
+ (error "No server on current line"))
+ (let ((winconf (current-window-configuration)))
+ (get-buffer-create gnus-server-edit-buffer)
+ (gnus-configure-windows 'edit-server)
+ (gnus-add-current-to-buffer-list)
+ (emacs-lisp-mode)
+ (make-local-variable 'gnus-prev-winconf)
+ (setq gnus-prev-winconf winconf)
+ (use-local-map (copy-keymap (current-local-map)))
+ (let ((done-func '(lambda ()
+ "Exit editing mode and update the information."
+ (interactive)
+ (gnus-server-edit-server-done 'group))))
+ (setcar (cdr (nth 4 done-func)) server)
+ (local-set-key "\C-c\C-c" done-func))
+ (erase-buffer)
+ (insert ";; Type `C-c C-c' after you have edited the server.\n\n")
+ (insert (pp-to-string (cdr (assoc server gnus-server-alist))))))
+
+(defun gnus-server-edit-server-done (server)
+ (interactive)
+ (set-buffer (get-buffer-create gnus-server-edit-buffer))
+ (goto-char (point-min))
+ (let ((form (read (current-buffer)))
+ (winconf gnus-prev-winconf))
+ (gnus-server-set-info server form)
+ (kill-buffer (current-buffer))
+ (and winconf (set-window-configuration winconf))
+ (set-buffer gnus-server-buffer)
+ (gnus-server-update-server (gnus-server-server-name))
+ (gnus-server-list-servers)
+ (gnus-server-position-cursor)))
+
+(defun gnus-server-read-server (server)
+ "Browse a server."
+ (interactive (list (gnus-server-server-name)))
+ (gnus-browse-foreign-server (gnus-server-to-method server) (current-buffer)))
+
+(defun gnus-mouse-pick-server (e)
+ (interactive "e")
+ (mouse-set-point e)
+ (gnus-server-read-server (gnus-server-server-name)))
+
+;;;
+;;; entry points into gnus-score.el
+;;;
+
+;;; Finding score files.
+
+(defvar gnus-global-score-files nil
+ "*List of global score files and directories.
+Set this variable if you want to use people's score files. One entry
+for each score file or each score file directory. Gnus will decide
+by itself what score files are applicable to which group.
+
+Say you want to use the single score file
+\"/ftp.ifi.uio.no@ftp:/pub/larsi/ding/score/soc.motss.SCORE\" and all
+score files in the \"/ftp.some-where:/pub/score\" directory.
+
+ (setq gnus-global-score-files
+ '(\"/ftp.ifi.uio.no:/pub/larsi/ding/score/soc.motss.SCORE\"
+ \"/ftp.some-where:/pub/score\"))")
+
+(defun gnus-score-score-files (group)
+ "Return a list of all possible score files."
+ ;; Search and set any global score files.
+ (and gnus-global-score-files
+ (or gnus-internal-global-score-files
+ (gnus-score-search-global-directories gnus-global-score-files)))
+ ;; Fix the kill-file dir variable.
+ (setq gnus-kill-files-directory
+ (file-name-as-directory
+ (or gnus-kill-files-directory "~/News/")))
+ ;; If we can't read it, there are no score files.
+ (if (not (file-exists-p (expand-file-name gnus-kill-files-directory)))
+ (setq gnus-score-file-list nil)
+ (if (gnus-use-long-file-name 'not-score)
+ ;; We want long file names.
+ (if (or (not gnus-score-file-list)
+ (not (car gnus-score-file-list))
+ (gnus-file-newer-than gnus-kill-files-directory
+ (car gnus-score-file-list)))
+ (setq gnus-score-file-list
+ (cons (nth 5 (file-attributes gnus-kill-files-directory))
+ (nreverse
+ (directory-files
+ gnus-kill-files-directory t
+ (gnus-score-file-regexp))))))
+ ;; We do not use long file names, so we have to do some
+ ;; directory traversing.
+ (let ((mdir (length (expand-file-name gnus-kill-files-directory)))
+ (suffixes (list gnus-score-file-suffix gnus-adaptive-file-suffix))
+ dir files suffix)
+ (while suffixes
+ (setq dir (expand-file-name
+ (concat gnus-kill-files-directory
+ (gnus-replace-chars-in-string group ?. ?/))))
+ (setq dir (gnus-replace-chars-in-string dir ?: ?/))
+ (setq suffix (car suffixes)
+ suffixes (cdr suffixes))
+ (if (file-exists-p (concat dir "/" suffix))
+ (setq files (cons (concat dir "/" suffix) files)))
+ (while (>= (1+ (length dir)) mdir)
+ (and (file-exists-p (concat dir "/all/" suffix))
+ (setq files (cons (concat dir "/all/" suffix) files)))
+ (string-match "/[^/]*$" dir)
+ (setq dir (substring dir 0 (match-beginning 0)))))
+ (setq gnus-score-file-list
+ (cons nil (nreverse files)))))
+ (cdr gnus-score-file-list)))
+
+(defun gnus-score-file-regexp ()
+ (concat "\\(" gnus-score-file-suffix
+ "\\|" gnus-adaptive-file-suffix "\\)$"))
+
+(defun gnus-score-find-bnews (group)
+ "Return a list of score files for GROUP.
+The score files are those files in the ~/News directory which matches
+GROUP using BNews sys file syntax."
+ (let* ((sfiles (append (gnus-score-score-files group)
+ gnus-internal-global-score-files))
+ (kill-dir (file-name-as-directory
+ (expand-file-name gnus-kill-files-directory)))
+ (klen (length kill-dir))
+ ofiles not-match regexp)
+ (save-excursion
+ (set-buffer (get-buffer-create "*gnus score files*"))
+ (buffer-disable-undo (current-buffer))
+ ;; Go through all score file names and create regexp with them
+ ;; as the source.
+ (while sfiles
+ (erase-buffer)
+ (insert (car sfiles))
+ (goto-char (point-min))
+ ;; First remove the suffix itself.
+ (re-search-forward (concat "." (gnus-score-file-regexp)))
+ (replace-match "" t t)
+ (goto-char (point-min))
+ (if (looking-at (regexp-quote kill-dir))
+ ;; If the file name was just "SCORE", `klen' is one character
+ ;; too much.
+ (delete-char (min (1- (point-max)) klen))
+ (goto-char (point-max))
+ (search-backward "/")
+ (delete-region (1+ (point)) (point-min)))
+ ;; If short file names were used, we have to translate slashes.
+ (goto-char (point-min))
+ (while (re-search-forward "[/:]" nil t)
+ (replace-match "." t t))
+ ;; Kludge to get rid of "nntp+" problems.
+ (goto-char (point-min))
+ (and (looking-at "nn[a-z]+\\+")
+ (progn
+ (search-forward "+")
+ (forward-char -1)
+ (insert "\\")))
+ ;; Translate ".all" to "[./].*";
+ (while (search-forward ".all" nil t)
+ (replace-match "[./:].*" t t))
+ (goto-char (point-min))
+ ;; Translate "all" to ".*".
+ (while (search-forward "all" nil t)
+ (replace-match ".*" t t))
+ (goto-char (point-min))
+ ;; Deal with "not."s.
+ (if (looking-at "not.")
+ (progn
+ (setq not-match t)
+ (setq regexp (buffer-substring 5 (point-max))))
+ (setq regexp (buffer-substring 1 (point-max)))
+ (setq not-match nil))
+ ;; Finally - if this resulting regexp matches the group name,
+ ;; we add this score file to the list of score files
+ ;; applicable to this group.
+ (if (or (and not-match
+ (not (string-match regexp group)))
+ (and (not not-match)
+ (string-match regexp group)))
+ (setq ofiles (cons (car sfiles) ofiles)))
+ (setq sfiles (cdr sfiles)))
+ (kill-buffer (current-buffer))
+ ;; Slight kludge here - the last score file returned should be
+ ;; the local score file, whether it exists or not. This is so
+ ;; that any score commands the user enters will go to the right
+ ;; file, and not end up in some global score file.
+ (let ((localscore
+ (expand-file-name
+ (if (gnus-use-long-file-name 'not-score)
+ (concat gnus-kill-files-directory group "."
+ gnus-score-file-suffix)
+ (concat gnus-kill-files-directory
+ (gnus-replace-chars-in-string group ?. ?/ ?: ?/)
+ "/" gnus-score-file-suffix)))))
+ ;; The local score file might already be there, but it's
+ ;; supposed to be the very last file, so we delete it from the
+ ;; list if it's already there, and add it to the head of the
+ ;; list.
+ (setq ofiles (cons localscore (delete localscore ofiles))))
+ (nreverse ofiles))))
+
+(defun gnus-score-find-single (group)
+ "Return list containing the score file for GROUP."
+ (list (gnus-score-file-name group gnus-adaptive-file-suffix)
+ (gnus-score-file-name group)))
+
+(defun gnus-score-find-hierarchical (group)
+ "Return list of score files for GROUP.
+This includes the score file for the group and all its parents."
+ (let ((all (copy-sequence '(nil)))
+ (start 0))
+ (while (string-match "\\." group (1+ start))
+ (setq start (match-beginning 0))
+ (setq all (cons (substring group 0 start) all)))
+ (setq all (cons group all))
+ (nconc
+ (mapcar (lambda (newsgroup)
+ (gnus-score-file-name newsgroup gnus-adaptive-file-suffix))
+ (setq all (nreverse all)))
+ (mapcar 'gnus-score-file-name all))))
+
+(defvar gnus-score-file-alist-cache nil)
+
+(defun gnus-score-find-alist (group)
+ "Return list of score files for GROUP.
+The list is determined from the variable gnus-score-file-alist."
+ (let ((alist gnus-score-file-multiple-match-alist)
+ score-files)
+ ;; if this group has been seen before, return the cached entry
+ (if (setq score-files (assoc group gnus-score-file-alist-cache))
+ (cdr score-files) ;ensures caching groups with no matches
+ ;; handle the multiple match alist
+ (while alist
+ (and (string-match (car (car alist)) group)
+ (setq score-files
+ (nconc score-files (copy-sequence (cdr (car alist))))))
+ (setq alist (cdr alist)))
+ (setq alist gnus-score-file-single-match-alist)
+ ;; handle the single match alist
+ (while alist
+ (and (string-match (car (car alist)) group)
+ ;; progn used just in case ("regexp") has no files
+ ;; and score-files is still nil. -sj
+ ;; this can be construed as a "stop searching here" feature :>
+ ;; and used to simplify regexps in the single-alist
+ (progn
+ (setq score-files
+ (nconc score-files (copy-sequence (cdr (car alist)))))
+ (setq alist nil)))
+ (setq alist (cdr alist)))
+ ;; cache the score files
+ (setq gnus-score-file-alist-cache
+ (cons (cons group score-files) gnus-score-file-alist-cache))
+ score-files)))
+
+
+(defun gnus-possibly-score-headers (&optional trace)
+ (let ((func gnus-score-find-score-files-function)
+ score-files)
+ (and func (not (listp func))
+ (setq func (list func)))
+ ;; Go through all the functions for finding score files (or actual
+ ;; scores) and add them to a list.
+ (setq score-files (gnus-score-find-alist gnus-newsgroup-name))
+ (while func
+ (and (symbolp (car func))
+ (fboundp (car func))
+ (setq score-files
+ (nconc score-files (funcall (car func) gnus-newsgroup-name))))
+ (setq func (cdr func)))
+ (if score-files (gnus-score-headers score-files trace))))
+
+(defun gnus-score-file-name (newsgroup &optional suffix)
+ "Return the name of a score file for NEWSGROUP."
+ (let ((suffix (or suffix gnus-score-file-suffix)))
+ (cond
+ ((or (null newsgroup)
+ (string-equal newsgroup ""))
+ ;; The global score file is placed at top of the directory.
+ (expand-file-name
+ suffix (or gnus-kill-files-directory "~/News")))
+ ((gnus-use-long-file-name 'not-score)
+ ;; Append ".SCORE" to newsgroup name.
+ (expand-file-name (concat (gnus-newsgroup-savable-name newsgroup)
+ "." suffix)
+ (or gnus-kill-files-directory "~/News")))
+ (t
+ ;; Place "SCORE" under the hierarchical directory.
+ (expand-file-name (concat (gnus-newsgroup-directory-form newsgroup)
+ "/" suffix)
+ (or gnus-kill-files-directory "~/News"))))))
+
+(defun gnus-score-search-global-directories (files)
+ "Scan all global score directories for score files."
+ ;; Set the variable `gnus-internal-global-score-files' to all
+ ;; available global score files.
+ (interactive (list gnus-global-score-files))
+ (let (out)
+ (while files
+ (if (string-match "/$" (car files))
+ (setq out (nconc (directory-files
+ (car files) t
+ (concat (gnus-score-file-regexp) "$"))))
+ (setq out (cons (car files) out)))
+ (setq files (cdr files)))
+ (setq gnus-internal-global-score-files out)))
+
+;; Allow redefinition of Gnus functions.
+
+(gnus-ems-redefine)
+
+(provide 'gnus)
+
+;;; gnus.el ends here