--- /dev/null
+;;; gnus-sum.el --- summary mode commands for Gnus
+
+;; Copyright (C) 1996-2016 Free Software Foundation, Inc.
+
+;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
+;; 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 3 of the License, 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. If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;;; Code:
+
+(eval-when-compile
+ (require 'cl))
+(eval-when-compile
+ (when (featurep 'xemacs)
+ (require 'easy-mmode))) ; for `define-minor-mode'
+
+(defvar tool-bar-mode)
+(defvar gnus-tmp-header)
+
+(require 'gnus)
+(require 'gnus-group)
+(require 'gnus-spec)
+(require 'gnus-range)
+(require 'gnus-int)
+(require 'gnus-undo)
+(require 'gnus-util)
+(require 'gmm-utils)
+(require 'mm-decode)
+(require 'nnoo)
+
+(autoload 'gnus-summary-limit-include-cached "gnus-cache" nil t)
+(autoload 'gnus-cache-write-active "gnus-cache")
+(autoload 'gnus-mailing-list-insinuate "gnus-ml" nil t)
+(autoload 'turn-on-gnus-mailing-list-mode "gnus-ml" nil t)
+(autoload 'gnus-pick-line-number "gnus-salt" nil t)
+(autoload 'mm-uu-dissect "mm-uu")
+(autoload 'gnus-article-outlook-deuglify-article "deuglify"
+ "Deuglify broken Outlook (Express) articles and redisplay."
+ t)
+(autoload 'gnus-article-outlook-unwrap-lines "deuglify" nil t)
+(autoload 'gnus-article-outlook-repair-attribution "deuglify" nil t)
+(autoload 'gnus-article-outlook-rearrange-citation "deuglify" nil t)
+(autoload 'nnir-article-rsv "nnir" nil nil 'macro)
+(autoload 'nnir-article-group "nnir" nil nil 'macro)
+
+(defcustom gnus-kill-summary-on-exit t
+ "*If non-nil, kill the summary buffer when you exit from it.
+If nil, the summary will become a \"*Dead Summary*\" buffer, and
+it will be killed sometime later."
+ :group 'gnus-summary-exit
+ :type 'boolean)
+
+(defcustom gnus-summary-next-group-on-exit t
+ "If non-nil, go to the next unread newsgroup on summary exit.
+See `gnus-group-goto-unread'."
+ :link '(custom-manual "(gnus)Group Maneuvering")
+ :group 'gnus-summary-exit
+ :version "23.1" ;; No Gnus
+ :type 'boolean)
+
+(defcustom gnus-summary-stop-at-end-of-message nil
+ "If non-nil, don't select the next message when using `SPC'."
+ :link '(custom-manual "(gnus)Group Maneuvering")
+ :group 'gnus-summary-maneuvering
+ :version "24.1"
+ :type 'boolean)
+
+(defcustom 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
+t, Gnus will attempt to grab the headers to the old articles, and
+thereby build complete threads. If it has the value `some', all
+old headers will be fetched but only enough headers to connect
+otherwise loose threads will be displayed. This variable can
+also be a number. In that case, no more than that number of old
+headers will be fetched. If it has the value `invisible', all
+old headers will be fetched, but none will be displayed.
+
+The server has to support NOV for any of this to work.
+
+This feature can seriously impact performance it ignores all
+locally cached header entries. Setting it to t for groups for a
+server that doesn't expire articles (such as news.gmane.org),
+leads to very slow summary generation."
+ :group 'gnus-thread
+ :type '(choice (const :tag "off" nil)
+ (const :tag "on" t)
+ (const some)
+ (const invisible)
+ number
+ (sexp :menu-tag "other" t)))
+
+(defcustom gnus-refer-thread-limit 500
+ "*The number of old headers to fetch when doing \\<gnus-summary-mode-map>\\[gnus-summary-refer-thread].
+If t, fetch all the available old headers."
+ :group 'gnus-thread
+ :type '(choice number
+ (sexp :menu-tag "other" t)))
+
+(defcustom gnus-refer-thread-use-nnir nil
+ "*Use nnir to search an entire server when referring threads. A
+nil value will only search for thread-related articles in the
+current group."
+ :version "24.1"
+ :group 'gnus-thread
+ :type 'boolean)
+
+(defcustom 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.)"
+ :group 'gnus-thread
+ :type '(choice (const :tag "off" nil)
+ (const none)
+ (const dummy)
+ (const adopt)
+ (const empty)))
+
+(defcustom gnus-summary-make-false-root-always nil
+ "Always make a false dummy root."
+ :version "22.1"
+ :group 'gnus-thread
+ :type 'boolean)
+
+(defcustom gnus-summary-gather-exclude-subject "^ *$\\|^(none)$"
+ "*A regexp to match subjects to be excluded from loose thread gathering.
+As loose thread gathering is done on subjects only, that means that
+there can be many false gatherings performed. By rooting out certain
+common subjects, gathering might become saner."
+ :group 'gnus-thread
+ :type 'regexp)
+
+(defcustom 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."
+ :group 'gnus-thread
+ :type '(choice (const :tag "off" nil)
+ (const fuzzy)
+ (sexp :menu-tag "on" t)))
+
+(defcustom gnus-simplify-subject-functions nil
+ "List of functions taking a string argument that simplify subjects.
+The functions are applied recursively.
+
+Useful functions to put in this list include:
+`gnus-simplify-subject-re', `gnus-simplify-subject-fuzzy',
+`gnus-simplify-whitespace', and `gnus-simplify-all-whitespace'."
+ :group 'gnus-thread
+ :type '(repeat function))
+
+(defcustom gnus-simplify-ignored-prefixes nil
+ "*Remove matches for this regexp from subject lines when simplifying fuzzily."
+ :group 'gnus-thread
+ :type '(choice (const :tag "off" nil)
+ regexp))
+
+(defcustom gnus-build-sparse-threads nil
+ "*If non-nil, fill in the gaps in threads.
+If `some', only fill in the gaps that are needed to tie loose threads
+together. If `more', fill in all leaf nodes that Gnus can find. If
+non-nil and non-`some', fill in all gaps that Gnus manages to guess."
+ :group 'gnus-thread
+ :type '(choice (const :tag "off" nil)
+ (const some)
+ (const more)
+ (sexp :menu-tag "all" t)))
+
+(defcustom gnus-summary-thread-gathering-function
+ 'gnus-gather-threads-by-subject
+ "*Function used for gathering loose threads.
+There are two pre-defined functions: `gnus-gather-threads-by-subject',
+which only takes Subjects into consideration; and
+`gnus-gather-threads-by-references', which compared the References
+headers of the articles to find matches."
+ :group 'gnus-thread
+ :type '(radio (function-item gnus-gather-threads-by-subject)
+ (function-item gnus-gather-threads-by-references)
+ (function :tag "other")))
+
+(defcustom 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'."
+ :group 'gnus-summary-format
+ :type 'string)
+
+(defcustom gnus-summary-goto-unread nil
+ "*If t, many commands will go to the next unread article.
+This applies to marking commands as well as other commands that
+\"naturally\" select the next article, like, for instance, `SPC' at
+the end of an article.
+
+If nil, the marking commands do NOT go to the next unread article
+\(they go to the next article instead). If `never', commands that
+usually go to the next unread article, will go to the next article,
+whether it is read or not."
+ :version "24.1"
+ :group 'gnus-summary-marks
+ :link '(custom-manual "(gnus)Setting Marks")
+ :type '(choice (const :tag "off" nil)
+ (const never)
+ (sexp :menu-tag "on" t)))
+
+(defcustom gnus-summary-default-score 0
+ "*Default article score level.
+All scores generated by the score files will be added to this score.
+If this variable is nil, scoring will be disabled."
+ :group 'gnus-score-default
+ :type '(choice (const :tag "disable")
+ integer))
+
+(defcustom gnus-summary-default-high-score 0
+ "*Default threshold for a high scored article.
+An article will be highlighted as high scored if its score is greater
+than this score."
+ :version "22.1"
+ :group 'gnus-score-default
+ :type 'integer)
+
+(defcustom gnus-summary-default-low-score 0
+ "*Default threshold for a low scored article.
+An article will be highlighted as low scored if its score is smaller
+than this score."
+ :version "22.1"
+ :group 'gnus-score-default
+ :type 'integer)
+
+(defcustom 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."
+ :group 'gnus-summary-format
+ :type 'integer)
+
+(defcustom gnus-simplify-subject-fuzzy-regexp nil
+ "*Strings to be removed when doing fuzzy matches.
+This can either be a regular expression or list of regular expressions
+that will be removed from subject strings if fuzzy subject
+simplification is selected."
+ :group 'gnus-thread
+ :type '(repeat regexp))
+
+(defcustom gnus-show-threads t
+ "*If non-nil, display threads in summary mode."
+ :group 'gnus-thread
+ :type 'boolean)
+
+(defcustom gnus-thread-hide-subtree nil
+ "*If non-nil, hide all threads initially.
+This can be a predicate specifier which says which threads to hide.
+If threads are hidden, you have to run the command
+`gnus-summary-show-thread' by hand or select an article."
+ :group 'gnus-thread
+ :type '(radio (sexp :format "Non-nil\n"
+ :match (lambda (widget value)
+ (not (or (consp value) (functionp value))))
+ :value t)
+ (const nil)
+ (sexp :tag "Predicate specifier")))
+
+(defcustom gnus-thread-hide-killed t
+ "*If non-nil, hide killed threads automatically."
+ :group 'gnus-thread
+ :type 'boolean)
+
+(defcustom gnus-thread-ignore-subject t
+ "*If non-nil, which is the default, ignore subjects and do all threading based on the Reference header.
+If nil, articles that have different subjects from their parents will
+start separate threads."
+ :group 'gnus-thread
+ :type 'boolean)
+
+(defcustom gnus-thread-operation-ignore-subject t
+ "*If non-nil, subjects will be ignored when doing thread commands.
+This affects commands like `gnus-summary-kill-thread' and
+`gnus-summary-lower-thread'.
+
+If this variable is nil, articles in the same thread with different
+subjects will not be included in the operation in question. If this
+variable is `fuzzy', only articles that have subjects that are fuzzily
+equal will be included."
+ :group 'gnus-thread
+ :type '(choice (const :tag "off" nil)
+ (const fuzzy)
+ (sexp :tag "on" t)))
+
+(defcustom gnus-thread-indent-level 4
+ "*Number that says how much each sub-thread should be indented."
+ :group 'gnus-thread
+ :type 'integer)
+
+(defcustom gnus-auto-extend-newsgroup t
+ "*If non-nil, extend newsgroup forward and backward when requested."
+ :group 'gnus-summary-choose
+ :type 'boolean)
+
+(defcustom gnus-auto-select-first t
+ "If non-nil, select an article on group entry.
+An article is selected automatically when entering a group
+e.g. with \\<gnus-group-mode-map>\\[gnus-group-read-group], or via `gnus-summary-next-page' or
+`gnus-summary-catchup-and-goto-next-group'.
+
+Which article is selected is controlled by the variable
+`gnus-auto-select-subject'.
+
+If you want to prevent automatic selection of articles in some
+newsgroups, set the variable to nil in `gnus-select-group-hook'."
+ ;; Commands include...
+ ;; \\<gnus-group-mode-map>\\[gnus-group-read-group]
+ ;; \\<gnus-summary-mode-map>\\[gnus-summary-next-page]
+ ;; \\<gnus-summary-mode-map>\\[gnus-summary-catchup-and-goto-next-group]
+ :group 'gnus-group-select
+ :type '(choice (const :tag "none" nil)
+ (sexp :menu-tag "first" t)))
+
+(defcustom gnus-auto-select-subject 'unseen-or-unread
+ "*Says what subject to place under point when entering a group.
+
+This variable can either be the symbols `first' (place point on the
+first subject), `unread' (place point on the subject line of the first
+unread article), `best' (place point on the subject line of the
+highest-scored article), `unseen' (place point on the subject line of
+the first unseen article), `unseen-or-unread' (place point on the subject
+line of the first unseen article or, if all articles have been seen, on the
+subject line of the first unread article), or a function to be called to
+place point on some subject line."
+ :version "24.1"
+ :group 'gnus-group-select
+ :type '(choice (const best)
+ (const unread)
+ (const first)
+ (const unseen)
+ (const unseen-or-unread)
+ (function :tag "Function to call")))
+
+(defcustom 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 confirmation, and if it is
+`almost-quietly', the next group will be selected without any
+confirmation if you are located on the last article in the group.
+Finally, if this variable is `slightly-quietly', the `\\<gnus-summary-mode-map>\\[gnus-summary-catchup-and-goto-next-group]' command
+will go to the next group without confirmation."
+ :group 'gnus-summary-maneuvering
+ :type '(choice (const :tag "off" nil)
+ (const quietly)
+ (const almost-quietly)
+ (const slightly-quietly)
+ (sexp :menu-tag "on" t)))
+
+(defcustom gnus-auto-select-same nil
+ "*If non-nil, select the next article with the same subject.
+If there are no more articles with the same subject, go to
+the first unread article."
+ :group 'gnus-summary-maneuvering
+ :type 'boolean)
+
+(defcustom gnus-auto-select-on-ephemeral-exit 'next-noselect
+ "What article should be selected after exiting an ephemeral group.
+Valid values include:
+
+`next'
+ Select the next article.
+`next-unread'
+ Select the next unread article.
+`next-noselect'
+ Move the cursor to the next article. This is the default.
+`next-unread-noselect'
+ Move the cursor to the next unread article.
+
+If it has any other value or there is no next (unread) article, the
+article selected before entering to the ephemeral group will appear."
+ :version "23.1" ;; No Gnus
+ :group 'gnus-summary-maneuvering
+ :type '(choice :format "%{%t%}:\n %[Value Menu%] %v"
+ (const next) (const next-unread)
+ (const next-noselect) (const next-unread-noselect)
+ (sexp :tag "other" :value nil)))
+
+(defcustom gnus-auto-goto-ignores 'unfetched
+ "*Says how to handle unfetched articles when maneuvering.
+
+This variable can either be the symbols nil (maneuver to any
+article), `undownloaded' (maneuvering while unplugged ignores articles
+that have not been fetched), `always-undownloaded' (maneuvering always
+ignores articles that have not been fetched), `unfetched' (maneuvering
+ignores articles whose headers have not been fetched).
+
+NOTE: The list of unfetched articles will always be nil when plugged
+and, when unplugged, a subset of the undownloaded article list."
+ :version "22.1"
+ :group 'gnus-summary-maneuvering
+ :type '(choice (const :tag "None" nil)
+ (const :tag "Undownloaded when unplugged" undownloaded)
+ (const :tag "Undownloaded" always-undownloaded)
+ (const :tag "Unfetched" unfetched)))
+
+(defcustom 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."
+ :group 'gnus-summary-maneuvering
+ :type 'boolean)
+
+(defcustom gnus-auto-center-summary
+ (max (or (bound-and-true-p scroll-margin) 0) 2)
+ "*If non-nil, always center the current summary buffer.
+In particular, if `vertical' do only vertical recentering. If non-nil
+and non-`vertical', do both horizontal and vertical recentering."
+ :group 'gnus-summary-maneuvering
+ :type '(choice (const :tag "none" nil)
+ (const vertical)
+ (integer :tag "height")
+ (sexp :menu-tag "both" t)))
+
+(defcustom gnus-auto-center-group t
+ "If non-nil, always center the group buffer."
+ :group 'gnus-summary-maneuvering
+ :type 'boolean)
+
+(defcustom gnus-show-all-headers nil
+ "*If non-nil, don't hide any headers."
+ :group 'gnus-article-hiding
+ :group 'gnus-article-headers
+ :type 'boolean)
+
+(defcustom gnus-summary-ignore-duplicates nil
+ "*If non-nil, ignore articles with identical Message-ID headers."
+ :group 'gnus-summary
+ :type 'boolean)
+
+(defcustom gnus-single-article-buffer nil
+ "*If non-nil, display all articles in the same buffer.
+If nil, each group will get its own article buffer."
+ :version "24.1"
+ :group 'gnus-article-various
+ :type 'boolean)
+
+(defcustom gnus-widen-article-window nil
+ "If non-nil, selecting the article buffer will display only the article buffer."
+ :version "24.1"
+ :group 'gnus-article-various
+ :type 'boolean)
+
+(defcustom gnus-break-pages t
+ "*If non-nil, do page breaking on articles.
+The page delimiter is specified by the `gnus-page-delimiter'
+variable."
+ :group 'gnus-article-various
+ :type 'boolean)
+
+(defcustom gnus-move-split-methods nil
+ "*Variable used to suggest where articles are to be moved to.
+It uses the same syntax as the `gnus-split-methods' variable.
+However, whereas `gnus-split-methods' specifies file names as targets,
+this variable specifies group names."
+ :group 'gnus-summary-mail
+ :type '(repeat (choice (list :value (fun) function)
+ (cons :value ("" "") regexp (repeat string))
+ (sexp :value nil))))
+
+(defcustom gnus-move-group-prefix-function 'gnus-group-real-prefix
+ "Function used to compute default prefix for article move/copy/etc prompts.
+The function should take one argument, a group name, and return a
+string with the suggested prefix."
+ :group 'gnus-summary-mail
+ :type 'function)
+
+;; FIXME: Although the custom type is `character' for the following variables,
+;; using multibyte characters (Latin-1, UTF-8) doesn't work. -- rs
+
+(defcustom gnus-unread-mark ? ;Whitespace
+ "*Mark used for unread articles."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-ticked-mark ?!
+ "*Mark used for ticked articles."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-dormant-mark ??
+ "*Mark used for dormant articles."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-del-mark ?r
+ "*Mark used for del'd articles."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-read-mark ?R
+ "*Mark used for read articles."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-expirable-mark ?E
+ "*Mark used for expirable articles."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-killed-mark ?K
+ "*Mark used for killed articles."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-spam-mark ?$
+ "*Mark used for spam articles."
+ :version "22.1"
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-kill-file-mark ?X
+ "*Mark used for articles killed by kill files."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-low-score-mark ?Y
+ "*Mark used for articles with a low score."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-catchup-mark ?C
+ "*Mark used for articles that are caught up."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-replied-mark ?A
+ "*Mark used for articles that have been replied to."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-forwarded-mark ?F
+ "*Mark used for articles that have been forwarded."
+ :version "22.1"
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-recent-mark ?N
+ "*Mark used for articles that are recent."
+ :version "22.1"
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-cached-mark ?*
+ "*Mark used for articles that are in the cache."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-saved-mark ?S
+ "*Mark used for articles that have been saved."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-unseen-mark ?.
+ "*Mark used for articles that haven't been seen."
+ :version "22.1"
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-no-mark ? ;Whitespace
+ "*Mark used for articles that have no other secondary mark."
+ :version "22.1"
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-ancient-mark ?O
+ "*Mark used for ancient articles."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-sparse-mark ?Q
+ "*Mark used for sparsely reffed articles."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-canceled-mark ?G
+ "*Mark used for canceled articles."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-duplicate-mark ?M
+ "*Mark used for duplicate articles."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-undownloaded-mark ?-
+ "*Mark used for articles that weren't downloaded."
+ :version "22.1"
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-downloaded-mark ?+
+ "*Mark used for articles that were downloaded."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-downloadable-mark ?%
+ "*Mark used for articles that are to be downloaded."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-unsendable-mark ?=
+ "*Mark used for articles that won't be sent."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-score-over-mark ?+
+ "*Score mark used for articles with high scores."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-score-below-mark ?-
+ "*Score mark used for articles with low scores."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-empty-thread-mark ? ;Whitespace
+ "*There is no thread under the article."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-not-empty-thread-mark ?=
+ "*There is a thread under the article."
+ :group 'gnus-summary-marks
+ :type 'character)
+
+(defcustom gnus-view-pseudo-asynchronously nil
+ "*If non-nil, Gnus will view pseudo-articles asynchronously."
+ :group 'gnus-extract-view
+ :type 'boolean)
+
+(defcustom gnus-auto-expirable-marks
+ (list gnus-killed-mark gnus-del-mark gnus-catchup-mark
+ gnus-low-score-mark gnus-ancient-mark gnus-read-mark
+ gnus-duplicate-mark)
+ "*The list of marks converted into expiration if a group is auto-expirable."
+ :version "24.1"
+ :group 'gnus-summary
+ :type '(repeat character))
+
+(defcustom gnus-inhibit-user-auto-expire t
+ "*If non-nil, user marking commands will not mark an article as expirable, even if the group has auto-expire turned on."
+ :version "21.1"
+ :group 'gnus-summary
+ :type 'boolean)
+
+(defcustom gnus-mark-copied-or-moved-articles-as-expirable nil
+ "If non-nil, mark articles copied or moved to auto-expire group as expirable.
+If nil, the expirable marks will be unchanged except that the marks
+will be removed when copying or moving articles to a group that has
+not turned auto-expire on. If non-nil, articles that have been read
+will be marked as expirable when being copied or moved to a group in
+which auto-expire is turned on."
+ :version "23.2"
+ :type 'boolean
+ :group 'gnus-summary-marks)
+
+(defcustom 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."
+ :group 'gnus-extract-view
+ :type '(choice (const :tag "off" nil)
+ (const automatic)
+ (const not-confirm)))
+
+(defcustom 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."
+ :group 'gnus-extract-view
+ :type 'boolean)
+
+(defcustom gnus-insert-pseudo-articles t
+ "*If non-nil, insert pseudo-articles when decoding articles."
+ :group 'gnus-extract-view
+ :type 'boolean)
+
+(defcustom 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
+
+General format specifiers can also be used.
+See `(gnus)Formatting Variables'."
+ :link '(custom-manual "(gnus)Formatting Variables")
+ :group 'gnus-threading
+ :type 'string)
+
+(defcustom gnus-summary-mode-line-format "Gnus: %g [%A] %Z"
+ "*The format specification for the summary mode line.
+It works along the same lines as a normal formatting string,
+with some simple extensions:
+
+%G Group name
+%p Unprefixed group name
+%A Current article number
+%z Current article score
+%V Gnus version
+%U Number of unread articles in the group
+%e Number of unselected articles in the group
+%Z A string with unread/unselected article counts
+%g Shortish group name
+%S Subject of the current article
+%u User-defined spec
+%s Current score file name
+%d Number of dormant articles
+%r Number of articles that have been marked as read in this session
+%E Number of articles expunged by the score files"
+ :group 'gnus-summary-format
+ :type 'string)
+
+(defcustom gnus-list-identifiers nil
+ "Regexp that matches list identifiers to be removed from subject.
+This can also be a list of regexps."
+ :version "21.1"
+ :group 'gnus-summary-format
+ :group 'gnus-article-hiding
+ :type '(choice (const :tag "none" nil)
+ (regexp :value ".*")
+ (repeat :value (".*") regexp)))
+
+(defcustom gnus-summary-mark-below 0
+ "*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."
+ :group 'gnus-score-default
+ :type 'integer)
+
+(defun gnus-widget-reversible-match (widget value)
+ "Ignoring WIDGET, convert VALUE to internal form.
+VALUE should have the form `FOO' or `(not FOO)', where FOO is an symbol."
+ ;; (debug value)
+ (or (symbolp value)
+ (and (listp value)
+ (eq (length value) 2)
+ (eq (nth 0 value) 'not)
+ (symbolp (nth 1 value)))))
+
+(defun gnus-widget-reversible-to-internal (widget value)
+ "Ignoring WIDGET, convert VALUE to internal form.
+VALUE should have the form `FOO' or `(not FOO)', where FOO is an atom.
+FOO is converted to (FOO nil) and (not FOO) is converted to (FOO t)."
+ ;; (debug value)
+ (if (atom value)
+ (list value nil)
+ (list (nth 1 value) t)))
+
+(defun gnus-widget-reversible-to-external (widget value)
+ "Ignoring WIDGET, convert VALUE to external form.
+VALUE should have the form `(FOO nil)' or `(FOO t)', where FOO is an atom.
+\(FOO nil) is converted to FOO and (FOO t) is converted to (not FOO)."
+ ;; (debug value)
+ (if (nth 1 value)
+ (list 'not (nth 0 value))
+ (nth 0 value)))
+
+(define-widget 'gnus-widget-reversible 'group
+ "A `group' that convert values."
+ :match 'gnus-widget-reversible-match
+ :value-to-internal 'gnus-widget-reversible-to-internal
+ :value-to-external 'gnus-widget-reversible-to-external)
+
+(defcustom gnus-article-sort-functions '(gnus-article-sort-by-number)
+ "*List of functions used for sorting articles in the summary buffer.
+
+Each function takes two articles and returns non-nil if the first
+article should be sorted before the other. If you use more than one
+function, the primary sort function should be the last. You should
+probably always include `gnus-article-sort-by-number' in the list of
+sorting functions -- preferably first. Also note that sorting by date
+is often much slower than sorting by number, and the sorting order is
+very similar. (Sorting by date means sorting by the time the message
+was sent, sorting by number means sorting by arrival time.)
+
+Each item can also be a list `(not F)' where F is a function;
+this reverses the sort order.
+
+Ready-made functions include `gnus-article-sort-by-number',
+`gnus-article-sort-by-author', `gnus-article-sort-by-subject',
+`gnus-article-sort-by-date', `gnus-article-sort-by-random'
+and `gnus-article-sort-by-score'.
+
+When threading is turned on, the variable `gnus-thread-sort-functions'
+controls how articles are sorted."
+ :group 'gnus-summary-sort
+ :type '(repeat (gnus-widget-reversible
+ (choice (function-item gnus-article-sort-by-number)
+ (function-item gnus-article-sort-by-author)
+ (function-item gnus-article-sort-by-subject)
+ (function-item gnus-article-sort-by-date)
+ (function-item gnus-article-sort-by-score)
+ (function-item gnus-article-sort-by-random)
+ (function :tag "other"))
+ (boolean :tag "Reverse order"))))
+
+(defcustom 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 returns 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. You should
+probably always include `gnus-thread-sort-by-number' in the list of
+sorting functions -- preferably first. Also note that sorting by date
+is often much slower than sorting by number, and the sorting order is
+very similar. (Sorting by date means sorting by the time the message
+was sent, sorting by number means sorting by arrival time.)
+
+Each list item can also be a list `(not F)' where F is a
+function; this specifies reversed sort order.
+
+Ready-made functions include `gnus-thread-sort-by-number',
+`gnus-thread-sort-by-author', `gnus-thread-sort-by-recipient'
+`gnus-thread-sort-by-subject', `gnus-thread-sort-by-date',
+`gnus-thread-sort-by-score', `gnus-thread-sort-by-most-recent-number',
+`gnus-thread-sort-by-most-recent-date', `gnus-thread-sort-by-random',
+and `gnus-thread-sort-by-total-score' (see
+`gnus-thread-score-function').
+
+When threading is turned off, the variable
+`gnus-article-sort-functions' controls how articles are sorted.
+
+By default, threads and their subthreads are sorted according to
+the value of this variable. To use a different sorting order for
+subthreads, customize `gnus-subthread-sort-functions'."
+ :group 'gnus-summary-sort
+ :type '(repeat
+ (gnus-widget-reversible
+ (choice (function-item gnus-thread-sort-by-number)
+ (function-item gnus-thread-sort-by-author)
+ (function-item gnus-thread-sort-by-recipient)
+ (function-item gnus-thread-sort-by-subject)
+ (function-item gnus-thread-sort-by-date)
+ (function-item gnus-thread-sort-by-score)
+ (function-item gnus-thread-sort-by-most-recent-number)
+ (function-item gnus-thread-sort-by-most-recent-date)
+ (function-item gnus-thread-sort-by-random)
+ (function-item gnus-thread-sort-by-total-score)
+ (function :tag "other"))
+ (boolean :tag "Reverse order"))))
+
+(defcustom gnus-subthread-sort-functions 'gnus-thread-sort-functions
+ "*List of functions used for sorting subthreads in the summary buffer.
+By default, subthreads are sorted the same as threads, i.e.,
+according to the value of `gnus-thread-sort-functions'."
+ :version "24.4"
+ :group 'gnus-summary-sort
+ :type '(choice
+ (const :tag "Sort subthreads like threads" gnus-thread-sort-functions)
+ (repeat
+ (gnus-widget-reversible
+ (choice (function-item gnus-thread-sort-by-number)
+ (function-item gnus-thread-sort-by-author)
+ (function-item gnus-thread-sort-by-recipient)
+ (function-item gnus-thread-sort-by-subject)
+ (function-item gnus-thread-sort-by-date)
+ (function-item gnus-thread-sort-by-score)
+ (function-item gnus-thread-sort-by-most-recent-number)
+ (function-item gnus-thread-sort-by-most-recent-date)
+ (function-item gnus-thread-sort-by-random)
+ (function-item gnus-thread-sort-by-total-score)
+ (function :tag "other"))
+ (boolean :tag "Reverse order")))))
+
+(defcustom 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'."
+ :group 'gnus-summary-sort
+ :type 'function)
+
+(defcustom gnus-summary-expunge-below nil
+ "All articles that have a score less than this variable will be expunged.
+This variable is local to the summary buffers."
+ :group 'gnus-score-default
+ :type '(choice (const :tag "off" nil)
+ integer))
+
+(defcustom gnus-thread-expunge-below nil
+ "All threads that have a total score less than this variable will be expunged.
+See `gnus-thread-score-function' for en explanation of what a
+\"thread score\" is.
+
+This variable is local to the summary buffers."
+ :group 'gnus-threading
+ :group 'gnus-score-default
+ :type '(choice (const :tag "off" nil)
+ integer))
+
+(defcustom gnus-summary-mode-hook nil
+ "*A hook for Gnus summary mode.
+This hook is run before any variables are set in the summary buffer."
+ :options '(turn-on-gnus-mailing-list-mode gnus-pick-mode)
+ :group 'gnus-summary-various
+ :type 'hook)
+
+;; Extracted from gnus-xmas-redefine in order to preserve user settings
+(when (featurep 'xemacs)
+ (add-hook 'gnus-summary-mode-hook 'gnus-xmas-summary-menu-add)
+ (add-hook 'gnus-summary-mode-hook 'gnus-xmas-setup-summary-toolbar)
+ (add-hook 'gnus-summary-mode-hook
+ 'gnus-xmas-switch-horizontal-scrollbar-off))
+
+(defcustom gnus-summary-menu-hook nil
+ "*Hook run after the creation of the summary mode menu."
+ :group 'gnus-summary-visual
+ :type 'hook)
+
+(defcustom gnus-summary-exit-hook nil
+ "*A hook called on exit from the summary buffer.
+It will be called with point in the group buffer."
+ :group 'gnus-summary-exit
+ :type 'hook)
+
+(defcustom 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."
+ :group 'gnus-summary-various
+ :type 'hook)
+
+(defcustom gnus-summary-prepared-hook nil
+ "*A hook called as the last thing after the summary buffer has been generated."
+ :group 'gnus-summary-various
+ :type 'hook)
+
+(defcustom gnus-summary-generate-hook nil
+ "*A hook run just before generating the summary buffer.
+This hook is commonly used to customize threading variables and the
+like."
+ :group 'gnus-summary-various
+ :type 'hook)
+
+(defcustom 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:
+
+ (add-hook gnus-select-group-hook
+ (lambda ()
+ (mapcar (lambda (header)
+ (mail-header-set-subject
+ header
+ (gnus-simplify-subject
+ (mail-header-subject header) \\='re-only)))
+ gnus-newsgroup-headers)))"
+ :group 'gnus-group-select
+ :type 'hook)
+
+(defcustom gnus-select-article-hook nil
+ "*A hook called when an article is selected."
+ :group 'gnus-summary-choose
+ :options '(gnus-agent-fetch-selected-article)
+ :type 'hook)
+
+(defcustom 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."
+ :group 'gnus-summary-visual
+ :type 'hook)
+
+(defcustom gnus-parse-headers-hook nil
+ "*A hook called before parsing the headers."
+ :group 'gnus-various
+ :type 'hook)
+
+(defcustom gnus-exit-group-hook nil
+ "*A hook called when exiting summary mode.
+This hook is not called from the non-updating exit commands like `Q'."
+ :group 'gnus-various
+ :type 'hook)
+
+(defcustom gnus-summary-update-hook nil
+ "*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."
+ :group 'gnus-summary-visual
+ :type 'hook)
+
+(defcustom gnus-mark-article-hook '(gnus-summary-mark-read-and-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."
+ :group 'gnus-summary-choose
+ :type 'hook)
+
+(defcustom gnus-group-no-more-groups-hook nil
+ "*A hook run when returning to group mode having no more (unread) groups."
+ :group 'gnus-group-select
+ :type 'hook)
+
+(defcustom gnus-ps-print-hook nil
+ "*A hook run before ps-printing something from Gnus."
+ :group 'gnus-summary
+ :type 'hook)
+
+(defcustom gnus-summary-article-move-hook nil
+ "*A hook called after an article is moved, copied, respooled, or crossposted."
+ :version "22.1"
+ :group 'gnus-summary
+ :type 'hook)
+
+(defcustom gnus-summary-article-delete-hook nil
+ "*A hook called after an article is deleted."
+ :version "22.1"
+ :group 'gnus-summary
+ :type 'hook)
+
+(defcustom gnus-summary-article-expire-hook nil
+ "*A hook called after an article is expired."
+ :version "22.1"
+ :group 'gnus-summary
+ :type 'hook)
+
+(defcustom gnus-summary-display-arrow
+ (and (fboundp 'display-graphic-p)
+ (display-graphic-p))
+ "*If non-nil, display an arrow highlighting the current article."
+ :version "22.1"
+ :group 'gnus-summary
+ :type 'boolean)
+
+(defcustom gnus-summary-selected-face 'gnus-summary-selected
+ "Face used for highlighting the current article in the summary buffer."
+ :group 'gnus-summary-visual
+ :type 'face)
+
+(defvar gnus-tmp-downloaded nil)
+
+(defcustom gnus-summary-highlight
+ '(((eq mark gnus-canceled-mark)
+ . gnus-summary-cancelled)
+ ((and uncached (> score default-high))
+ . gnus-summary-high-undownloaded)
+ ((and uncached (< score default-low))
+ . gnus-summary-low-undownloaded)
+ (uncached
+ . gnus-summary-normal-undownloaded)
+ ((and (> score default-high)
+ (or (eq mark gnus-dormant-mark)
+ (eq mark gnus-ticked-mark)))
+ . gnus-summary-high-ticked)
+ ((and (< score default-low)
+ (or (eq mark gnus-dormant-mark)
+ (eq mark gnus-ticked-mark)))
+ . gnus-summary-low-ticked)
+ ((or (eq mark gnus-dormant-mark)
+ (eq mark gnus-ticked-mark))
+ . gnus-summary-normal-ticked)
+ ((and (> score default-high) (eq mark gnus-ancient-mark))
+ . gnus-summary-high-ancient)
+ ((and (< score default-low) (eq mark gnus-ancient-mark))
+ . gnus-summary-low-ancient)
+ ((eq mark gnus-ancient-mark)
+ . gnus-summary-normal-ancient)
+ ((and (> score default-high) (eq mark gnus-unread-mark))
+ . gnus-summary-high-unread)
+ ((and (< score default-low) (eq mark gnus-unread-mark))
+ . gnus-summary-low-unread)
+ ((eq mark gnus-unread-mark)
+ . gnus-summary-normal-unread)
+ ((> score default-high)
+ . gnus-summary-high-read)
+ ((< score default-low)
+ . gnus-summary-low-read)
+ (t
+ . gnus-summary-normal-read))
+ "*Controls the highlighting of summary buffer lines.
+
+A list of (FORM . FACE) pairs. When deciding how a particular
+summary line should be displayed, each form is evaluated. The content
+of the face field after the first true form is used. You can change
+how those summary lines are displayed, by editing the face field.
+
+You can use the following variables in the FORM field.
+
+score: The article's score.
+default: The default article score.
+default-high: The default score for high scored articles.
+default-low: The default score for low scored articles.
+mark: The article's mark.
+uncached: Non-nil if the article is uncached."
+ :group 'gnus-summary-visual
+ :type '(repeat (cons (sexp :tag "Form" nil)
+ face)))
+(put 'gnus-summary-highlight 'risky-local-variable t)
+
+(defcustom gnus-alter-header-function nil
+ "Function called to allow alteration of article header structures.
+The function is called with one parameter, the article header vector,
+which it may alter in any way."
+ :type '(choice (const :tag "None" nil)
+ function)
+ :group 'gnus-summary)
+
+(defvar gnus-decode-encoded-word-function 'mail-decode-encoded-word-string
+ "Function used to decode a string with encoded words.")
+
+(defvar gnus-decode-encoded-address-function
+ 'mail-decode-encoded-address-string
+ "Function used to decode addresses with encoded words.")
+
+(defcustom gnus-extra-headers '(To Cc Keywords Gcc Newsgroups X-GM-LABELS)
+ "*Extra headers to parse."
+ :version "25.1"
+ :group 'gnus-summary
+ :type '(repeat symbol))
+
+(defcustom gnus-ignored-from-addresses
+ (and user-mail-address
+ (not (string= user-mail-address ""))
+ (regexp-quote user-mail-address))
+ "*From headers that may be suppressed in favor of To headers.
+This can be a regexp or a list of regexps."
+ :version "21.1"
+ :group 'gnus-summary
+ :type '(choice regexp
+ (repeat :tag "Regexp List" regexp)))
+
+(defsubst gnus-ignored-from-addresses ()
+ (gmm-regexp-concat gnus-ignored-from-addresses))
+
+(defcustom gnus-summary-to-prefix "-> "
+ "*String prefixed to the To field in the summary line when
+using `gnus-ignored-from-addresses'."
+ :version "22.1"
+ :group 'gnus-summary
+ :type 'string)
+
+(defcustom gnus-summary-newsgroup-prefix "=> "
+ "*String prefixed to the Newsgroup field in the summary
+line when using the option `gnus-ignored-from-addresses'."
+ :version "22.1"
+ :group 'gnus-summary
+ :type 'string)
+
+(defcustom gnus-newsgroup-ignored-charsets '(unknown-8bit x-unknown)
+ "List of charsets that should be ignored.
+When these charsets are used in the \"charset\" parameter, the
+default charset will be used instead."
+ :version "21.1"
+ :type '(repeat symbol)
+ :group 'gnus-charset)
+
+(defcustom gnus-newsgroup-maximum-articles nil
+ "The maximum number of articles a newsgroup.
+If this is a number, old articles in a newsgroup exceeding this number
+are silently ignored. If it is nil, no article is ignored. Note that
+setting this variable to a number might prevent you from reading very
+old articles."
+ :group 'gnus-group-select
+ :version "22.2"
+ :type '(choice (const :tag "No limit" nil)
+ integer))
+
+(gnus-define-group-parameter
+ ignored-charsets
+ :type list
+ :function-document
+ "Return the ignored charsets of GROUP."
+ :variable gnus-group-ignored-charsets-alist
+ :variable-default
+ '(("alt\\.chinese\\.text" iso-8859-1))
+ :variable-document
+ "Alist of regexps (to match group names) and charsets that should be ignored.
+When these charsets are used in the \"charset\" parameter, the
+default charset will be used instead."
+ :variable-group gnus-charset
+ :variable-type '(repeat (cons (regexp :tag "Group")
+ (repeat symbol)))
+ :parameter-type '(choice :tag "Ignored charsets"
+ :value nil
+ (repeat (symbol)))
+ :parameter-document "\
+List of charsets that should be ignored.
+
+When these charsets are used in the \"charset\" parameter, the
+default charset will be used instead.")
+
+(defcustom gnus-group-highlight-words-alist nil
+ "Alist of group regexps and highlight regexps.
+This variable uses the same syntax as `gnus-emphasis-alist'."
+ :version "21.1"
+ :type '(repeat (cons (regexp :tag "Group")
+ (repeat (list (regexp :tag "Highlight regexp")
+ (number :tag "Group for entire word" 0)
+ (number :tag "Group for displayed part" 0)
+ (symbol :tag "Face"
+ gnus-emphasis-highlight-words)))))
+ :group 'gnus-summary-visual)
+
+(defcustom gnus-summary-show-article-charset-alist
+ nil
+ "Alist of number and charset.
+The article will be shown with the charset corresponding to the
+numbered argument.
+For example: ((1 . cn-gb-2312) (2 . big5))."
+ :version "21.1"
+ :type '(repeat (cons (number :tag "Argument" 1)
+ (symbol :tag "Charset")))
+ :group 'gnus-charset)
+
+(defcustom gnus-preserve-marks t
+ "Whether marks are preserved when moving, copying and respooling messages."
+ :version "21.1"
+ :type 'boolean
+ :group 'gnus-summary-marks)
+
+(defcustom gnus-alter-articles-to-read-function nil
+ "Function to be called to alter the list of articles to be selected."
+ :type '(choice (const nil) function)
+ :group 'gnus-summary)
+
+(defcustom gnus-orphan-score nil
+ "*All orphans get this score added. Set in the score file."
+ :group 'gnus-score-default
+ :type '(choice (const nil)
+ integer))
+
+(defcustom gnus-summary-save-parts-default-mime "image/.*"
+ "*A regexp to match MIME parts when saving multiple parts of a
+message with `gnus-summary-save-parts' (\\<gnus-summary-mode-map>\\[gnus-summary-save-parts]).
+This regexp will be used by default when prompting the user for which
+type of files to save."
+ :group 'gnus-summary
+ :type 'regexp)
+
+(defcustom gnus-read-all-available-headers nil
+ "Whether Gnus should parse all headers made available to it.
+This is mostly relevant for slow back ends where the user may
+wish to widen the summary buffer to include all headers
+that were fetched."
+ :version "22.1"
+ :group 'gnus-summary
+ :type '(choice boolean regexp))
+
+(defcustom gnus-summary-pipe-output-default-command nil
+ "Command (and optional arguments) used to pipe article to subprocess.
+This will be used as the default command if it is non-nil. The value
+will be updated if you modify it when executing the command
+`gnus-summary-pipe-output' or the function `gnus-summary-save-in-pipe'."
+ :version "23.1" ;; No Gnus
+ :group 'gnus-summary
+ :type '(radio (const :tag "None" nil) (string :tag "Command")))
+
+(defcustom gnus-summary-muttprint-program "muttprint"
+ "Command (and optional arguments) used to run Muttprint.
+The value will be updated if you modify it when executing the command
+`gnus-summary-muttprint'."
+ :version "22.1"
+ :group 'gnus-summary
+ :type 'string)
+
+(defcustom gnus-article-loose-mime t
+ "If non-nil, don't require MIME-Version header.
+Some brain-damaged MUA/MTA, e.g. Lotus Domino 5.0.6 clients, does not
+supply the MIME-Version header or deliberately strip it from the mail.
+If non-nil (the default), Gnus will treat some articles as MIME
+even if the MIME-Version header is missing."
+ :version "22.1"
+ :type 'boolean
+ :group 'gnus-article-mime)
+
+(defcustom gnus-article-emulate-mime t
+ "If non-nil, use MIME emulation for uuencode and the like.
+This means that Gnus will search message bodies for text that look
+like uuencoded bits, yEncoded bits, and so on, and present that using
+the normal Gnus MIME machinery."
+ :version "22.1"
+ :type 'boolean
+ :group 'gnus-article-mime)
+
+;;; Internal variables
+
+(defvar gnus-summary-display-cache nil)
+(defvar gnus-article-mime-handles nil)
+(defvar gnus-article-decoded-p nil)
+(defvar gnus-article-charset nil)
+(defvar gnus-article-ignored-charsets nil)
+(defvar gnus-scores-exclude-files nil)
+(defvar gnus-page-broken nil)
+
+(defvar gnus-original-article nil)
+(defvar gnus-article-internal-prepare-hook nil)
+(defvar gnus-newsgroup-process-stack nil)
+
+(defvar gnus-thread-indent-array nil)
+(defvar gnus-thread-indent-array-level gnus-thread-indent-level)
+(defvar gnus-sort-gathered-threads-function 'gnus-thread-sort-by-number
+ "Function called to sort the articles within a thread after it has been gathered together.")
+
+(defvar gnus-summary-save-parts-type-history nil)
+(defvar gnus-summary-save-parts-last-directory mm-default-directory)
+
+;; Avoid highlighting in kill files.
+(defvar gnus-summary-inhibit-highlight nil)
+(defvar gnus-newsgroup-selected-overlay nil)
+(defvar gnus-inhibit-limiting nil)
+(defvar gnus-newsgroup-adaptive-score-file nil)
+(defvar gnus-current-score-file nil)
+(defvar gnus-current-move-group nil)
+(defvar gnus-current-copy-group nil)
+(defvar gnus-current-crosspost-group nil)
+(defvar gnus-newsgroup-display nil)
+
+(defvar gnus-newsgroup-dependencies nil)
+(defvar gnus-newsgroup-adaptive nil)
+(defvar gnus-summary-display-article-function nil)
+(defvar gnus-summary-highlight-line-function nil
+ "Function called after highlighting a summary line.")
+
+(defvar gnus-summary-line-format-alist
+ `((?N ,(macroexpand '(mail-header-number gnus-tmp-header)) ?d)
+ (?S ,(macroexpand '(mail-header-subject gnus-tmp-header)) ?s)
+ (?s gnus-tmp-subject-or-nil ?s)
+ (?n gnus-tmp-name ?s)
+ (?A (car (cdr (funcall gnus-extract-address-components gnus-tmp-from)))
+ ?s)
+ (?a (or (car (funcall gnus-extract-address-components gnus-tmp-from))
+ gnus-tmp-from) ?s)
+ (?F gnus-tmp-from ?s)
+ (?x ,(macroexpand '(mail-header-xref gnus-tmp-header)) ?s)
+ (?D ,(macroexpand '(mail-header-date gnus-tmp-header)) ?s)
+ (?d (gnus-dd-mmm (mail-header-date gnus-tmp-header)) ?s)
+ (?o (gnus-date-iso8601 (mail-header-date gnus-tmp-header)) ?s)
+ (?M ,(macroexpand '(mail-header-id gnus-tmp-header)) ?s)
+ (?r ,(macroexpand '(mail-header-references gnus-tmp-header)) ?s)
+ (?c (or (mail-header-chars gnus-tmp-header) 0) ?d)
+ (?k (gnus-summary-line-message-size gnus-tmp-header) ?s)
+ (?L gnus-tmp-lines ?s)
+ (?Z (or (nnir-article-rsv (mail-header-number gnus-tmp-header))
+ 0) ?d)
+ (?G (or (nnir-article-group (mail-header-number gnus-tmp-header))
+ "") ?s)
+ (?g (or (gnus-group-short-name
+ (nnir-article-group (mail-header-number gnus-tmp-header)))
+ "") ?s)
+ (?O gnus-tmp-downloaded ?c)
+ (?I gnus-tmp-indentation ?s)
+ (?T (if (= gnus-tmp-level 0) "" (make-string (frame-width) ? )) ?s)
+ (?R gnus-tmp-replied ?c)
+ (?\[ gnus-tmp-opening-bracket ?c)
+ (?\] gnus-tmp-closing-bracket ?c)
+ (?\> (make-string gnus-tmp-level ? ) ?s)
+ (?\< (make-string (max 0 (- 20 gnus-tmp-level)) ? ) ?s)
+ (?i gnus-tmp-score ?d)
+ (?z gnus-tmp-score-char ?c)
+ (?V (gnus-thread-total-score (and (boundp 'thread) (car thread))) ?d)
+ (?U gnus-tmp-unread ?c)
+ (?f (gnus-summary-from-or-to-or-newsgroups gnus-tmp-header gnus-tmp-from)
+ ?s)
+ (?t (gnus-summary-number-of-articles-in-thread
+ (and (boundp 'thread) (car thread)) gnus-tmp-level)
+ ?d)
+ (?e (gnus-summary-number-of-articles-in-thread
+ (and (boundp 'thread) (car thread)) gnus-tmp-level t)
+ ?c)
+ (?u gnus-tmp-user-defined ?s)
+ (?P (gnus-pick-line-number) ?d)
+ (?B gnus-tmp-thread-tree-header-string ?s)
+ (user-date (gnus-user-date
+ ,(macroexpand '(mail-header-date gnus-tmp-header))) ?s))
+ "An alist of format specifications that can appear in summary lines.
+These are paired with what variables they correspond with, along with
+the type of the variable (string, integer, character, etc).")
+
+(defvar gnus-summary-dummy-line-format-alist
+ `((?S gnus-tmp-subject ?s)
+ (?N gnus-tmp-number ?d)
+ (?u gnus-tmp-user-defined ?s)))
+
+(defvar gnus-summary-mode-line-format-alist
+ `((?G gnus-tmp-group-name ?s)
+ (?g (gnus-short-group-name gnus-tmp-group-name) ?s)
+ (?p (gnus-group-real-name gnus-tmp-group-name) ?s)
+ (?A gnus-tmp-article-number ?d)
+ (?Z gnus-tmp-unread-and-unselected ?s)
+ (?V gnus-version ?s)
+ (?U gnus-tmp-unread-and-unticked ?d)
+ (?S gnus-tmp-subject ?s)
+ (?e gnus-tmp-unselected ?d)
+ (?u gnus-tmp-user-defined ?s)
+ (?d (length gnus-newsgroup-dormant) ?d)
+ (?t (length gnus-newsgroup-marked) ?d)
+ (?h (length gnus-newsgroup-spam-marked) ?d)
+ (?r (length gnus-newsgroup-reads) ?d)
+ (?z (gnus-summary-article-score gnus-tmp-article-number) ?d)
+ (?E gnus-newsgroup-expunged-tally ?d)
+ (?s (gnus-current-score-file-nondirectory) ?s)))
+
+;; This is here rather than in gnus-art for compilation reasons.
+(defvar gnus-article-mode-line-format-alist
+ (nconc '((?w (gnus-article-wash-status) ?s)
+ (?m (gnus-article-mime-part-status) ?s))
+ gnus-summary-mode-line-format-alist))
+
+(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-newsgroup-agentized nil
+ "Locally bound in each summary buffer to indicate whether the server has been agentized.")
+(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-last-directory nil)
+(defvar gnus-newsgroup-auto-expire nil)
+(defvar gnus-newsgroup-active nil)
+(defvar gnus-newsgroup-highest nil)
+
+(defvar gnus-newsgroup-data nil)
+(defvar gnus-newsgroup-data-reverse nil)
+(defvar gnus-newsgroup-limit nil)
+(defvar gnus-newsgroup-limits nil)
+(defvar gnus-summary-use-undownloaded-faces nil)
+
+(defvar gnus-newsgroup-unreads nil
+ "Sorted list of unread articles in the current newsgroup.")
+
+(defvar gnus-newsgroup-unselected nil
+ "Sorted 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-expunged-tally nil)
+
+(defvar gnus-newsgroup-marked nil
+ "Sorted list of ticked articles in the current newsgroup (a subset of unread art).")
+
+(defvar gnus-newsgroup-spam-marked nil
+ "List of ranges of articles that have been marked as spam.")
+
+(defvar gnus-newsgroup-killed nil
+ "List of ranges of articles that have been through the scoring process.")
+
+(defvar gnus-newsgroup-cached nil
+ "Sorted list of articles that come from the article cache.")
+
+(defvar gnus-newsgroup-saved nil
+ "List of articles that have been saved.")
+
+(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-forwarded nil
+ "List of articles that have been forwarded in the current newsgroup.")
+
+(defvar gnus-newsgroup-expirable nil
+ "Sorted 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-downloadable nil
+ "Sorted list of articles in the current newsgroup that can be processed.")
+
+(defvar gnus-newsgroup-unfetched nil
+ "Sorted list of articles in the current newsgroup whose headers have
+not been fetched into the agent.
+
+This list will always be a subset of gnus-newsgroup-undownloaded.")
+
+(defvar gnus-newsgroup-undownloaded nil
+ "List of articles in the current newsgroup that haven't been downloaded.")
+
+(defvar gnus-newsgroup-unsendable nil
+ "List of articles in the current newsgroup that won't be sent.")
+
+(defvar gnus-newsgroup-bookmarks nil
+ "List of articles in the current newsgroup that have bookmarks.")
+
+(defvar gnus-newsgroup-dormant nil
+ "Sorted list of dormant articles in the current newsgroup.")
+
+(defvar gnus-newsgroup-unseen nil
+ "List of unseen articles in the current newsgroup.")
+
+(defvar gnus-newsgroup-seen nil
+ "Range of seen articles in the current newsgroup.")
+
+(defvar gnus-newsgroup-unexist nil
+ "Range of unexisting articles in the current newsgroup.")
+
+(defvar gnus-newsgroup-articles nil
+ "List of 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-threads nil)
+
+(defvar gnus-newsgroup-prepared nil
+ "Whether the current group has been prepared properly.")
+
+(defvar gnus-newsgroup-ancient nil
+ "List of `gnus-fetch-old-headers' articles in the current newsgroup.")
+
+(defvar gnus-newsgroup-sparse nil)
+
+(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-newsgroup-charset nil)
+(defvar gnus-newsgroup-ephemeral-charset nil)
+(defvar gnus-newsgroup-ephemeral-ignored-charsets nil)
+
+(defvar gnus-article-before-search nil)
+
+(defvar gnus-summary-local-variables
+ '(gnus-newsgroup-name
+
+ ;; Marks lists
+ gnus-newsgroup-unreads
+ gnus-newsgroup-unselected
+ gnus-newsgroup-marked
+ gnus-newsgroup-spam-marked
+ gnus-newsgroup-reads
+ gnus-newsgroup-saved
+ gnus-newsgroup-replied
+ gnus-newsgroup-forwarded
+ gnus-newsgroup-expirable
+ gnus-newsgroup-killed
+ gnus-newsgroup-unseen
+ gnus-newsgroup-seen
+ gnus-newsgroup-unexist
+ gnus-newsgroup-cached
+ gnus-newsgroup-downloadable
+ gnus-newsgroup-undownloaded
+ gnus-newsgroup-unsendable
+
+ gnus-newsgroup-begin gnus-newsgroup-end
+ gnus-newsgroup-last-rmail gnus-newsgroup-last-mail
+ gnus-newsgroup-last-folder gnus-newsgroup-last-file
+ gnus-newsgroup-last-directory
+ gnus-newsgroup-auto-expire
+ gnus-newsgroup-processable
+ gnus-newsgroup-unfetched
+ gnus-newsgroup-articles
+ gnus-newsgroup-bookmarks gnus-newsgroup-dormant
+ gnus-newsgroup-headers gnus-newsgroup-threads
+ gnus-newsgroup-prepared gnus-summary-highlight-line-function
+ gnus-current-article gnus-current-headers gnus-have-all-headers
+ gnus-last-article gnus-article-internal-prepare-hook
+ (gnus-summary-article-delete-hook . global)
+ (gnus-summary-article-move-hook . global)
+ gnus-newsgroup-dependencies gnus-newsgroup-selected-overlay
+ gnus-newsgroup-scored gnus-newsgroup-kill-headers
+ gnus-thread-expunge-below
+ gnus-score-alist gnus-current-score-file
+ (gnus-summary-expunge-below . global)
+ (gnus-summary-mark-below . global)
+ (gnus-orphan-score . global)
+ gnus-newsgroup-active gnus-scores-exclude-files
+ gnus-newsgroup-highest
+ gnus-newsgroup-history gnus-newsgroup-ancient
+ gnus-newsgroup-sparse gnus-newsgroup-process-stack
+ (gnus-newsgroup-adaptive . gnus-use-adaptive-scoring)
+ gnus-newsgroup-adaptive-score-file (gnus-reffed-article-number . -1)
+ (gnus-newsgroup-expunged-tally . 0)
+ gnus-cache-removable-articles
+ gnus-newsgroup-data gnus-newsgroup-data-reverse
+ gnus-newsgroup-limit gnus-newsgroup-limits
+ gnus-newsgroup-charset gnus-newsgroup-display
+ gnus-summary-use-undownloaded-faces)
+ "Variables that are buffer-local to the summary buffers.")
+
+(defvar gnus-newsgroup-variables nil
+ "A list of variables that have separate values in different newsgroups.
+A list of newsgroup (summary buffer) local variables, or cons of
+variables and their default expressions to be evalled (when the default
+values are not nil), that should be made global while the summary buffer
+is active.
+
+Note: The default expressions will be evaluated (using function `eval')
+before assignment to the local variable rather than just assigned to it.
+If the default expression is the symbol `global', that symbol will not
+be evaluated but the global value of the local variable will be used
+instead.
+
+These variables can be used to set variables in the group parameters
+while still allowing them to affect operations done in other buffers.
+For example:
+
+\(setq gnus-newsgroup-variables
+ \\='(message-use-followup-to
+ (gnus-visible-headers .
+ \"^From:\\\\|^Newsgroups:\\\\|^Subject:\\\\|^Date:\\\\|^To:\")))
+")
+
+(eval-when-compile
+ ;; Bind features so that require will believe that gnus-sum has
+ ;; already been loaded (avoids infinite recursion)
+ (let ((features (cons 'gnus-sum features)))
+ (require 'gnus-art)))
+
+;; MIME stuff.
+
+(defvar gnus-decode-encoded-word-methods
+ '(mail-decode-encoded-word-string)
+ "List of methods used to decode encoded words.
+
+This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
+is FUNCTION, FUNCTION will be apply to all newsgroups. If item is a
+\(REGEXP . FUNCTION), FUNCTION will be applied only to the newsgroups
+whose names match REGEXP.
+
+For example:
+\((\"chinese\" . gnus-decode-encoded-word-string-by-guess)
+ mail-decode-encoded-word-string
+ (\"chinese\" . rfc1843-decode-string))")
+
+(defvar gnus-decode-encoded-word-methods-cache nil)
+
+(defun gnus-multi-decode-encoded-word-string (string)
+ "Apply the functions from `gnus-encoded-word-methods' that match."
+ (unless (and gnus-decode-encoded-word-methods-cache
+ (eq gnus-newsgroup-name
+ (car gnus-decode-encoded-word-methods-cache)))
+ (setq gnus-decode-encoded-word-methods-cache (list gnus-newsgroup-name))
+ (dolist (method gnus-decode-encoded-word-methods)
+ (if (symbolp method)
+ (nconc gnus-decode-encoded-word-methods-cache (list method))
+ (if (and gnus-newsgroup-name
+ (string-match (car method) gnus-newsgroup-name))
+ (nconc gnus-decode-encoded-word-methods-cache
+ (list (cdr method)))))))
+ (dolist (method (cdr gnus-decode-encoded-word-methods-cache) string)
+ (setq string (funcall method string))))
+
+;; Subject simplification.
+
+(defun gnus-simplify-whitespace (str)
+ "Remove excessive whitespace from STR."
+ ;; Multiple spaces.
+ (while (string-match "[ \t][ \t]+" str)
+ (setq str (concat (substring str 0 (match-beginning 0))
+ " "
+ (substring str (match-end 0)))))
+ ;; Leading spaces.
+ (when (string-match "^[ \t]+" str)
+ (setq str (substring str (match-end 0))))
+ ;; Trailing spaces.
+ (when (string-match "[ \t]+$" str)
+ (setq str (substring str 0 (match-beginning 0))))
+ str)
+
+(defun gnus-simplify-all-whitespace (str)
+ "Remove all whitespace from STR."
+ (while (string-match "[ \t\n]+" str)
+ (setq str (replace-match "" nil nil str)))
+ str)
+
+(defsubst gnus-simplify-subject-re (subject)
+ "Remove \"Re:\" from subject lines."
+ (if (string-match message-subject-re-regexp subject)
+ (substring subject (match-end 0))
+ subject))
+
+(defun gnus-simplify-subject (subject &optional re-only)
+ "Remove `Re:' and words in parentheses.
+If RE-ONLY is non-nil, strip leading `Re:'s only."
+ (let ((case-fold-search t)) ;Ignore case.
+ ;; Remove `Re:', `Re^N:', `Re(n)', and `Re[n]:'.
+ (when (string-match "\\`\\(re\\([[(^][0-9]+[])]?\\)?:[ \t]*\\)+" subject)
+ (setq subject (substring subject (match-end 0))))
+ ;; Remove uninteresting prefixes.
+ (when (and (not re-only)
+ gnus-simplify-ignored-prefixes
+ (string-match gnus-simplify-ignored-prefixes subject))
+ (setq subject (substring subject (match-end 0))))
+ ;; Remove words in parentheses from end.
+ (unless 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.
+(defsubst gnus-simplify-buffer-fuzzy-step (regexp &optional newtext)
+ (goto-char (point-min))
+ (while (re-search-forward regexp nil t)
+ (replace-match (or newtext ""))))
+
+(defun gnus-simplify-buffer-fuzzy (regexp)
+ "Simplify string in the buffer fuzzily.
+The string in the accessible portion of the current buffer is simplified.
+It is assumed to be a single-line subject.
+Whitespace is generally cleaned up, and miscellaneous leading/trailing
+matter is removed. Additional things can be deleted by setting
+`gnus-simplify-subject-fuzzy-regexp'."
+ (let ((case-fold-search t)
+ (modified-tick))
+ (gnus-simplify-buffer-fuzzy-step "\t" " ")
+
+ (while (not (eq modified-tick (buffer-modified-tick)))
+ (setq modified-tick (buffer-modified-tick))
+ (cond
+ ((listp regexp)
+ (mapc 'gnus-simplify-buffer-fuzzy-step regexp))
+ (regexp
+ (gnus-simplify-buffer-fuzzy-step regexp)))
+ (gnus-simplify-buffer-fuzzy-step "^ *\\[[-+?*!][-+?*!]\\] *")
+ (gnus-simplify-buffer-fuzzy-step
+ "^ *\\(re\\|fw\\|fwd\\)[[{(^0-9]*[])}]?[:;] *")
+ (gnus-simplify-buffer-fuzzy-step "^[[].*:\\( .*\\)[]]$" "\\1"))
+
+ (gnus-simplify-buffer-fuzzy-step " *[[{(][^()\n]*[]})] *$")
+ (gnus-simplify-buffer-fuzzy-step " +" " ")
+ (gnus-simplify-buffer-fuzzy-step " $")
+ (gnus-simplify-buffer-fuzzy-step "^ +")))
+
+(defun gnus-simplify-subject-fuzzy (subject)
+ "Simplify a subject string fuzzily.
+See `gnus-simplify-buffer-fuzzy' for details."
+ (save-excursion
+ (let ((regexp gnus-simplify-subject-fuzzy-regexp))
+ (gnus-set-work-buffer)
+ (let ((case-fold-search t))
+ ;; Remove uninteresting prefixes.
+ (when (and gnus-simplify-ignored-prefixes
+ (string-match gnus-simplify-ignored-prefixes subject))
+ (setq subject (substring subject (match-end 0))))
+ (insert subject)
+ (inline (gnus-simplify-buffer-fuzzy regexp))
+ (buffer-string)))))
+
+(defsubst gnus-simplify-subject-fully (subject)
+ "Simplify a subject string according to `gnus-summary-gather-subject-limit'."
+ (cond
+ (gnus-simplify-subject-functions
+ (gnus-map-function gnus-simplify-subject-functions subject))
+ ((null gnus-summary-gather-subject-limit)
+ (gnus-simplify-subject-re subject))
+ ((eq gnus-summary-gather-subject-limit 'fuzzy)
+ (gnus-simplify-subject-fuzzy subject))
+ ((numberp gnus-summary-gather-subject-limit)
+ (truncate-string-to-width (gnus-simplify-subject-re subject)
+ gnus-summary-gather-subject-limit))
+ (t
+ subject)))
+
+(defsubst gnus-subject-equal (s1 s2 &optional simple-first)
+ "Check whether two subjects are equal.
+If optional argument SIMPLE-FIRST is t, first argument is already
+simplified."
+ (cond
+ ((null simple-first)
+ (equal (gnus-simplify-subject-fully s1)
+ (gnus-simplify-subject-fully s2)))
+ (t
+ (equal s1
+ (gnus-simplify-subject-fully s2)))))
+
+(defun gnus-summary-bubble-group ()
+ "Increase the score of the current group.
+This is a handy function to add to `gnus-summary-exit-hook' to
+increase the score of each group you read."
+ (gnus-group-add-score gnus-newsgroup-name))
+
+\f
+;;;
+;;; Gnus summary mode
+;;;
+
+(put 'gnus-summary-mode 'mode-class 'special)
+
+(defvar gnus-article-commands-menu)
+
+;; Non-orthogonal keys
+
+(gnus-define-keys gnus-summary-mode-map
+ " " gnus-summary-next-page
+ [?\S-\ ] gnus-summary-prev-page
+ "\177" gnus-summary-prev-page
+ [delete] gnus-summary-prev-page
+ "\r" gnus-summary-scroll-up
+ "\M-\r" gnus-summary-scroll-down
+ "n" gnus-summary-next-unread-article
+ "p" gnus-summary-prev-unread-article
+ "N" gnus-summary-next-article
+ "P" gnus-summary-prev-article
+ "\M-\C-n" gnus-summary-next-same-subject
+ "\M-\C-p" gnus-summary-prev-same-subject
+ "\M-n" gnus-summary-next-unread-subject
+ "\M-p" gnus-summary-prev-unread-subject
+ "." gnus-summary-first-unread-article
+ "," gnus-summary-best-unread-article
+ "\M-s" gnus-summary-search-article-forward
+ "\M-r" gnus-summary-search-article-backward
+ "\M-S" gnus-summary-repeat-search-article-forward
+ "\M-R" gnus-summary-repeat-search-article-backward
+ "<" gnus-summary-beginning-of-article
+ ">" gnus-summary-end-of-article
+ "j" gnus-summary-goto-article
+ "^" gnus-summary-refer-parent-article
+ "\M-^" gnus-summary-refer-article
+ "u" gnus-summary-tick-article-forward
+ "!" gnus-summary-tick-article-forward
+ "U" gnus-summary-tick-article-backward
+ "d" gnus-summary-mark-as-read-forward
+ "D" gnus-summary-mark-as-read-backward
+ "E" gnus-summary-mark-as-expirable
+ "\M-u" gnus-summary-clear-mark-forward
+ "\M-U" gnus-summary-clear-mark-backward
+ "k" gnus-summary-kill-same-subject-and-select
+ "\C-k" gnus-summary-kill-same-subject
+ "\M-\C-k" gnus-summary-kill-thread
+ "\M-\C-l" gnus-summary-lower-thread
+ "e" gnus-summary-edit-article
+ "#" gnus-summary-mark-as-processable
+ "\M-#" gnus-summary-unmark-as-processable
+ "\M-\C-t" gnus-summary-toggle-threads
+ "\M-\C-s" gnus-summary-show-thread
+ "\M-\C-h" gnus-summary-hide-thread
+ "\M-\C-f" gnus-summary-next-thread
+ "\M-\C-b" gnus-summary-prev-thread
+ [(meta down)] gnus-summary-next-thread
+ [(meta up)] gnus-summary-prev-thread
+ "\M-\C-u" gnus-summary-up-thread
+ "\M-\C-d" gnus-summary-down-thread
+ "&" gnus-summary-execute-command
+ "c" gnus-summary-catchup-and-exit
+ "\C-w" gnus-summary-mark-region-as-read
+ "\C-t" gnus-summary-toggle-truncation
+ "?" gnus-summary-mark-as-dormant
+ "\C-c\M-\C-s" gnus-summary-limit-include-expunged
+ "\C-c\C-s\C-n" gnus-summary-sort-by-number
+ "\C-c\C-s\C-m\C-n" gnus-summary-sort-by-most-recent-number
+ "\C-c\C-s\C-l" gnus-summary-sort-by-lines
+ "\C-c\C-s\C-c" gnus-summary-sort-by-chars
+ "\C-c\C-s\C-a" gnus-summary-sort-by-author
+ "\C-c\C-s\C-t" gnus-summary-sort-by-recipient
+ "\C-c\C-s\C-s" gnus-summary-sort-by-subject
+ "\C-c\C-s\C-d" gnus-summary-sort-by-date
+ "\C-c\C-s\C-m\C-d" gnus-summary-sort-by-most-recent-date
+ "\C-c\C-s\C-i" gnus-summary-sort-by-score
+ "\C-c\C-s\C-o" gnus-summary-sort-by-original
+ "\C-c\C-s\C-r" gnus-summary-sort-by-random
+ "=" gnus-summary-expand-window
+ "\C-x\C-s" gnus-summary-reselect-current-group
+ "\M-g" gnus-summary-rescan-group
+ "\C-c\C-r" gnus-summary-caesar-message
+ "f" gnus-summary-followup
+ "F" gnus-summary-followup-with-original
+ "C" gnus-summary-cancel-article
+ "r" gnus-summary-reply
+ "R" gnus-summary-reply-with-original
+ "\C-c\C-f" gnus-summary-mail-forward
+ "o" gnus-summary-save-article
+ "\C-o" gnus-summary-save-article-mail
+ "|" gnus-summary-pipe-output
+ "\M-k" gnus-summary-edit-local-kill
+ "\M-K" gnus-summary-edit-global-kill
+ ;; "V" gnus-version
+ "\C-c\C-d" gnus-summary-describe-group
+ "q" gnus-summary-exit
+ "Q" gnus-summary-exit-no-update
+ "\C-c\C-i" gnus-info-find-node
+ gnus-mouse-2 gnus-mouse-pick-article
+ [follow-link] mouse-face
+ "m" gnus-summary-mail-other-window
+ "a" gnus-summary-post-news
+ "x" gnus-summary-limit-to-unread
+ "s" gnus-summary-isearch-article
+ "\t" gnus-summary-widget-forward
+ [backtab] gnus-summary-widget-backward
+ "t" gnus-summary-toggle-header
+ "g" gnus-summary-show-article
+ "l" gnus-summary-goto-last-article
+ "\C-c\C-v\C-v" gnus-uu-decode-uu-view
+ "\C-d" gnus-summary-enter-digest-group
+ "\M-\C-d" gnus-summary-read-document
+ "\M-\C-e" gnus-summary-edit-parameters
+ "\M-\C-a" gnus-summary-customize-parameters
+ "\C-c\C-b" gnus-bug
+ "*" gnus-cache-enter-article
+ "\M-*" gnus-cache-remove-article
+ "\M-&" gnus-summary-universal-argument
+ "\C-l" gnus-recenter
+ "I" gnus-summary-increase-score
+ "L" gnus-summary-lower-score
+ "\M-i" gnus-symbolic-argument
+ "h" gnus-summary-select-article-buffer
+
+ "b" gnus-article-view-part
+ "\M-t" gnus-summary-toggle-display-buttonized
+
+ "V" gnus-summary-score-map
+ "X" gnus-uu-extract-map
+ "S" gnus-summary-send-map)
+
+;; Sort of orthogonal keymap
+(gnus-define-keys (gnus-summary-mark-map "M" gnus-summary-mode-map)
+ "t" gnus-summary-tick-article-forward
+ "!" gnus-summary-tick-article-forward
+ "d" gnus-summary-mark-as-read-forward
+ "r" gnus-summary-mark-as-read-forward
+ "c" gnus-summary-clear-mark-forward
+ " " gnus-summary-clear-mark-forward
+ "e" gnus-summary-mark-as-expirable
+ "x" gnus-summary-mark-as-expirable
+ "?" gnus-summary-mark-as-dormant
+ "b" gnus-summary-set-bookmark
+ "B" gnus-summary-remove-bookmark
+ "#" gnus-summary-mark-as-processable
+ "\M-#" gnus-summary-unmark-as-processable
+ "S" gnus-summary-limit-include-expunged
+ "C" gnus-summary-catchup
+ "H" gnus-summary-catchup-to-here
+ "h" gnus-summary-catchup-from-here
+ "\C-c" gnus-summary-catchup-all
+ "k" gnus-summary-kill-same-subject-and-select
+ "K" gnus-summary-kill-same-subject
+ "P" gnus-uu-mark-map)
+
+(gnus-define-keys (gnus-summary-mscore-map "V" gnus-summary-mark-map)
+ "c" gnus-summary-clear-above
+ "u" gnus-summary-tick-above
+ "m" gnus-summary-mark-above
+ "k" gnus-summary-kill-below)
+
+(gnus-define-keys (gnus-summary-limit-map "/" gnus-summary-mode-map)
+ "/" gnus-summary-limit-to-subject
+ "n" gnus-summary-limit-to-articles
+ "b" gnus-summary-limit-to-bodies
+ "h" gnus-summary-limit-to-headers
+ "w" gnus-summary-pop-limit
+ "s" gnus-summary-limit-to-subject
+ "a" gnus-summary-limit-to-author
+ "u" gnus-summary-limit-to-unread
+ "m" gnus-summary-limit-to-marks
+ "M" gnus-summary-limit-exclude-marks
+ "v" gnus-summary-limit-to-score
+ "*" gnus-summary-limit-include-cached
+ "D" gnus-summary-limit-include-dormant
+ "T" gnus-summary-limit-include-thread
+ "d" gnus-summary-limit-exclude-dormant
+ "t" gnus-summary-limit-to-age
+ "." gnus-summary-limit-to-unseen
+ "x" gnus-summary-limit-to-extra
+ "p" gnus-summary-limit-to-display-predicate
+ "E" gnus-summary-limit-include-expunged
+ "c" gnus-summary-limit-exclude-childless-dormant
+ "C" gnus-summary-limit-mark-excluded-as-read
+ "o" gnus-summary-insert-old-articles
+ "N" gnus-summary-insert-new-articles
+ "S" gnus-summary-limit-to-singletons
+ "r" gnus-summary-limit-to-replied
+ "R" gnus-summary-limit-to-recipient
+ "A" gnus-summary-limit-to-address)
+
+(gnus-define-keys (gnus-summary-goto-map "G" gnus-summary-mode-map)
+ "n" gnus-summary-next-unread-article
+ "p" gnus-summary-prev-unread-article
+ "N" gnus-summary-next-article
+ "P" gnus-summary-prev-article
+ "\C-n" gnus-summary-next-same-subject
+ "\C-p" gnus-summary-prev-same-subject
+ "\M-n" gnus-summary-next-unread-subject
+ "\M-p" gnus-summary-prev-unread-subject
+ "f" gnus-summary-first-unread-article
+ "b" gnus-summary-best-unread-article
+ "j" gnus-summary-goto-article
+ "g" gnus-summary-goto-subject
+ "l" gnus-summary-goto-last-article
+ "o" gnus-summary-pop-article)
+
+(gnus-define-keys (gnus-summary-thread-map "T" gnus-summary-mode-map)
+ "k" gnus-summary-kill-thread
+ "E" gnus-summary-expire-thread
+ "l" gnus-summary-lower-thread
+ "i" gnus-summary-raise-thread
+ "T" gnus-summary-toggle-threads
+ "t" gnus-summary-rethread-current
+ "^" gnus-summary-reparent-thread
+ "\M-^" gnus-summary-reparent-children
+ "s" gnus-summary-show-thread
+ "S" gnus-summary-show-all-threads
+ "h" gnus-summary-hide-thread
+ "H" gnus-summary-hide-all-threads
+ "n" gnus-summary-next-thread
+ "p" gnus-summary-prev-thread
+ "u" gnus-summary-up-thread
+ "o" gnus-summary-top-thread
+ "d" gnus-summary-down-thread
+ "#" gnus-uu-mark-thread
+ "\M-#" gnus-uu-unmark-thread)
+
+(gnus-define-keys (gnus-summary-buffer-map "Y" gnus-summary-mode-map)
+ "g" gnus-summary-prepare
+ "c" gnus-summary-insert-cached-articles
+ "d" gnus-summary-insert-dormant-articles
+ "t" gnus-summary-insert-ticked-articles)
+
+(gnus-define-keys (gnus-summary-exit-map "Z" gnus-summary-mode-map)
+ "c" gnus-summary-catchup-and-exit
+ "C" gnus-summary-catchup-all-and-exit
+ "E" gnus-summary-exit-no-update
+ "Q" gnus-summary-exit
+ "Z" gnus-summary-exit
+ "n" gnus-summary-catchup-and-goto-next-group
+ "p" gnus-summary-catchup-and-goto-prev-group
+ "R" gnus-summary-reselect-current-group
+ "G" gnus-summary-rescan-group
+ "N" gnus-summary-next-group
+ "s" gnus-summary-save-newsrc
+ "P" gnus-summary-prev-group)
+
+(gnus-define-keys (gnus-summary-article-map "A" gnus-summary-mode-map)
+ " " gnus-summary-next-page
+ "n" gnus-summary-next-page
+ [?\S-\ ] gnus-summary-prev-page
+ "\177" gnus-summary-prev-page
+ [delete] gnus-summary-prev-page
+ "p" gnus-summary-prev-page
+ "\r" gnus-summary-scroll-up
+ "\M-\r" gnus-summary-scroll-down
+ "<" gnus-summary-beginning-of-article
+ ">" gnus-summary-end-of-article
+ "b" gnus-summary-beginning-of-article
+ "e" gnus-summary-end-of-article
+ "^" gnus-summary-refer-parent-article
+ "r" gnus-summary-refer-parent-article
+ "C" gnus-summary-show-complete-article
+ "D" gnus-summary-enter-digest-group
+ "R" gnus-summary-refer-references
+ "T" gnus-summary-refer-thread
+ "W" gnus-warp-to-article
+ "g" gnus-summary-show-article
+ "s" gnus-summary-isearch-article
+ "\t" gnus-summary-widget-forward
+ [backtab] gnus-summary-widget-backward
+ "P" gnus-summary-print-article
+ "S" gnus-sticky-article
+ "M" gnus-mailing-list-insinuate
+ "t" gnus-article-babel)
+
+(gnus-define-keys (gnus-summary-wash-map "W" gnus-summary-mode-map)
+ "b" gnus-article-add-buttons
+ "B" gnus-article-add-buttons-to-head
+ "o" gnus-article-treat-overstrike
+ "e" gnus-article-emphasize
+ "w" gnus-article-fill-cited-article
+ "Q" gnus-article-fill-long-lines
+ "L" gnus-article-toggle-truncate-lines
+ "C" gnus-article-capitalize-sentences
+ "c" gnus-article-remove-cr
+ "q" gnus-article-de-quoted-unreadable
+ "6" gnus-article-de-base64-unreadable
+ "Z" gnus-article-decode-HZ
+ "A" gnus-article-treat-ansi-sequences
+ "h" gnus-article-wash-html
+ "u" gnus-article-unsplit-urls
+ "s" gnus-summary-force-verify-and-decrypt
+ "f" gnus-article-display-x-face
+ "l" gnus-summary-stop-page-breaking
+ "r" gnus-summary-caesar-message
+ "m" gnus-summary-morse-message
+ "t" gnus-summary-toggle-header
+ "g" gnus-treat-smiley
+ "v" gnus-summary-verbose-headers
+ "a" gnus-article-strip-headers-in-body ;; mnemonic: wash archive
+ "p" gnus-article-verify-x-pgp-sig
+ "d" gnus-article-treat-dumbquotes
+ "U" gnus-article-treat-non-ascii
+ "i" gnus-summary-idna-message)
+
+(gnus-define-keys (gnus-summary-wash-deuglify-map "Y" gnus-summary-wash-map)
+ ;; mnemonic: deuglif*Y*
+ "u" gnus-article-outlook-unwrap-lines
+ "a" gnus-article-outlook-repair-attribution
+ "c" gnus-article-outlook-rearrange-citation
+ "f" gnus-article-outlook-deuglify-article) ;; mnemonic: full deuglify
+
+(gnus-define-keys (gnus-summary-wash-hide-map "W" gnus-summary-wash-map)
+ "a" gnus-article-hide
+ "h" gnus-article-hide-headers
+ "b" gnus-article-hide-boring-headers
+ "s" gnus-article-hide-signature
+ "c" gnus-article-hide-citation
+ "C" gnus-article-hide-citation-in-followups
+ "l" gnus-article-hide-list-identifiers
+ "B" gnus-article-strip-banner
+ "P" gnus-article-hide-pem
+ "\C-c" gnus-article-hide-citation-maybe)
+
+(gnus-define-keys (gnus-summary-wash-highlight-map "H" gnus-summary-wash-map)
+ "a" gnus-article-highlight
+ "h" gnus-article-highlight-headers
+ "c" gnus-article-highlight-citation
+ "s" gnus-article-highlight-signature)
+
+(gnus-define-keys (gnus-summary-wash-header-map "G" gnus-summary-wash-map)
+ "f" gnus-article-treat-fold-headers
+ "u" gnus-article-treat-unfold-headers
+ "n" gnus-article-treat-fold-newsgroups)
+
+(gnus-define-keys (gnus-summary-wash-display-map "D" gnus-summary-wash-map)
+ "x" gnus-article-display-x-face
+ "d" gnus-article-display-face
+ "s" gnus-treat-smiley
+ "D" gnus-article-remove-images
+ "W" gnus-article-show-images
+ "f" gnus-treat-from-picon
+ "m" gnus-treat-mail-picon
+ "n" gnus-treat-newsgroups-picon
+ "g" gnus-treat-from-gravatar
+ "h" gnus-treat-mail-gravatar)
+
+(gnus-define-keys (gnus-summary-wash-mime-map "M" gnus-summary-wash-map)
+ "w" gnus-article-decode-mime-words
+ "c" gnus-article-decode-charset
+ "h" gnus-mime-buttonize-attachments-in-header
+ "v" gnus-mime-view-all-parts
+ "b" gnus-article-view-part)
+
+(gnus-define-keys (gnus-summary-wash-time-map "T" gnus-summary-wash-map)
+ "z" gnus-article-date-ut
+ "u" gnus-article-date-ut
+ "l" gnus-article-date-local
+ "p" gnus-article-date-english
+ "e" gnus-article-date-lapsed
+ "o" gnus-article-date-original
+ "i" gnus-article-date-iso8601
+ "s" gnus-article-date-user)
+
+(gnus-define-keys (gnus-summary-wash-empty-map "E" gnus-summary-wash-map)
+ "t" gnus-article-remove-trailing-blank-lines
+ "l" gnus-article-strip-leading-blank-lines
+ "m" gnus-article-strip-multiple-blank-lines
+ "a" gnus-article-strip-blank-lines
+ "A" gnus-article-strip-all-blank-lines
+ "s" gnus-article-strip-leading-space
+ "e" gnus-article-strip-trailing-space
+ "w" gnus-article-remove-leading-whitespace)
+
+(gnus-define-keys (gnus-summary-help-map "H" gnus-summary-mode-map)
+ "v" gnus-version
+ "d" gnus-summary-describe-group
+ "h" gnus-summary-describe-briefly
+ "i" gnus-info-find-node)
+
+(gnus-define-keys (gnus-summary-backend-map "B" gnus-summary-mode-map)
+ "e" gnus-summary-expire-articles
+ "\M-\C-e" gnus-summary-expire-articles-now
+ "\177" gnus-summary-delete-article
+ [delete] gnus-summary-delete-article
+ [backspace] gnus-summary-delete-article
+ "m" gnus-summary-move-article
+ "r" gnus-summary-respool-article
+ "w" gnus-summary-edit-article
+ "c" gnus-summary-copy-article
+ "B" gnus-summary-crosspost-article
+ "q" gnus-summary-respool-query
+ "t" gnus-summary-respool-trace
+ "i" gnus-summary-import-article
+ "I" gnus-summary-create-article
+ "p" gnus-summary-article-posted-p)
+
+(gnus-define-keys (gnus-summary-save-map "O" gnus-summary-mode-map)
+ "o" gnus-summary-save-article
+ "m" gnus-summary-save-article-mail
+ "F" gnus-summary-write-article-file
+ "r" gnus-summary-save-article-rmail
+ "f" gnus-summary-save-article-file
+ "b" gnus-summary-save-article-body-file
+ "B" gnus-summary-write-article-body-file
+ "h" gnus-summary-save-article-folder
+ "v" gnus-summary-save-article-vm
+ "p" gnus-summary-pipe-output
+ "P" gnus-summary-muttprint)
+
+(gnus-define-keys (gnus-summary-mime-map "K" gnus-summary-mode-map)
+ "b" gnus-summary-display-buttonized
+ "m" gnus-summary-repair-multipart
+ "v" gnus-article-view-part
+ "o" gnus-article-save-part
+ "O" gnus-article-save-part-and-strip
+ "r" gnus-article-replace-part
+ "d" gnus-article-delete-part
+ "t" gnus-article-view-part-as-type
+ "j" gnus-article-jump-to-part
+ "c" gnus-article-copy-part
+ "C" gnus-article-view-part-as-charset
+ "e" gnus-article-view-part-externally
+ "H" gnus-article-browse-html-article
+ "E" gnus-article-encrypt-body
+ "i" gnus-article-inline-part
+ "|" gnus-article-pipe-part)
+
+(gnus-define-keys (gnus-uu-mark-map "P" gnus-summary-mark-map)
+ "p" gnus-summary-mark-as-processable
+ "u" gnus-summary-unmark-as-processable
+ "U" gnus-summary-unmark-all-processable
+ "v" gnus-uu-mark-over
+ "s" gnus-uu-mark-series
+ "r" gnus-uu-mark-region
+ "g" gnus-uu-unmark-region
+ "R" gnus-uu-mark-by-regexp
+ "G" gnus-uu-unmark-by-regexp
+ "t" gnus-uu-mark-thread
+ "T" gnus-uu-unmark-thread
+ "a" gnus-uu-mark-all
+ "b" gnus-uu-mark-buffer
+ "S" gnus-uu-mark-sparse
+ "k" gnus-summary-kill-process-mark
+ "y" gnus-summary-yank-process-mark
+ "w" gnus-summary-save-process-mark
+ "i" gnus-uu-invert-processable)
+
+(gnus-define-keys (gnus-uu-extract-map "X" gnus-summary-mode-map)
+ ;;"x" gnus-uu-extract-any
+ "m" gnus-summary-save-parts
+ "u" gnus-uu-decode-uu
+ "U" gnus-uu-decode-uu-and-save
+ "s" gnus-uu-decode-unshar
+ "S" gnus-uu-decode-unshar-and-save
+ "o" gnus-uu-decode-save
+ "O" gnus-uu-decode-save
+ "b" gnus-uu-decode-binhex
+ "B" gnus-uu-decode-binhex
+ "Y" gnus-uu-decode-yenc
+ "p" gnus-uu-decode-postscript
+ "P" gnus-uu-decode-postscript-and-save)
+
+(gnus-define-keys
+ (gnus-uu-extract-view-map "v" gnus-uu-extract-map)
+ "u" gnus-uu-decode-uu-view
+ "U" gnus-uu-decode-uu-and-save-view
+ "s" gnus-uu-decode-unshar-view
+ "S" gnus-uu-decode-unshar-and-save-view
+ "o" gnus-uu-decode-save-view
+ "O" gnus-uu-decode-save-view
+ "b" gnus-uu-decode-binhex-view
+ "B" gnus-uu-decode-binhex-view
+ "p" gnus-uu-decode-postscript-view
+ "P" gnus-uu-decode-postscript-and-save-view)
+
+(defvar gnus-article-post-menu nil)
+
+(defconst gnus-summary-menu-maxlen 20)
+
+(defun gnus-summary-menu-split (menu)
+ ;; If we have lots of elements, divide them into groups of 20
+ ;; and make a pane (or submenu) for each one.
+ (if (> (length menu) (/ (* gnus-summary-menu-maxlen 3) 2))
+ (let ((menu menu) sublists next
+ (i 1))
+ (while menu
+ ;; Pull off the next gnus-summary-menu-maxlen elements
+ ;; and make them the next element of sublist.
+ (setq next (nthcdr gnus-summary-menu-maxlen menu))
+ (if next
+ (setcdr (nthcdr (1- gnus-summary-menu-maxlen) menu)
+ nil))
+ (setq sublists (cons (cons (format "%s ... %s" (aref (car menu) 0)
+ (aref (car (last menu)) 0)) menu)
+ sublists))
+ (setq i (1+ i))
+ (setq menu next))
+ (nreverse sublists))
+ ;; Few elements--put them all in one pane.
+ menu))
+
+(defun gnus-summary-make-menu-bar ()
+ (gnus-turn-off-edit-menu 'summary)
+
+ (unless (boundp 'gnus-summary-misc-menu)
+
+ (easy-menu-define
+ gnus-summary-kill-menu gnus-summary-mode-map ""
+ (cons
+ "Score"
+ (nconc
+ (list
+ ["Customize" gnus-score-customize t])
+ (gnus-make-score-map 'increase)
+ (gnus-make-score-map 'lower)
+ '(("Mark"
+ ["Kill below" gnus-summary-kill-below t]
+ ["Mark above" gnus-summary-mark-above t]
+ ["Tick above" gnus-summary-tick-above t]
+ ["Clear above" gnus-summary-clear-above t])
+ ["Current article score" gnus-summary-current-score t]
+ ["Current thread score" (gnus-summary-current-score 'total) t]
+ ["Set score" gnus-summary-set-score t]
+ ["Switch current score file..." gnus-score-change-score-file t]
+ ["Set mark below..." gnus-score-set-mark-below t]
+ ["Set expunge below..." gnus-score-set-expunge-below t]
+ ["Edit current score file" gnus-score-edit-current-scores t]
+ ["Edit score file..." gnus-score-edit-file t]
+ ["Trace score" gnus-score-find-trace t]
+ ["Find words" gnus-score-find-favourite-words t]
+ ["Rescore buffer" gnus-summary-rescore t]
+ ["Increase score..." gnus-summary-increase-score t]
+ ["Lower score..." gnus-summary-lower-score t]))))
+
+ ;; Define both the Article menu in the summary buffer and the
+ ;; equivalent Commands menu in the article buffer here for
+ ;; consistency.
+ (let ((innards
+ `(("Hide"
+ ["All" gnus-article-hide t]
+ ["Headers" gnus-article-hide-headers t]
+ ["Signature" gnus-article-hide-signature t]
+ ["Citation" gnus-article-hide-citation t]
+ ["List identifiers" gnus-article-hide-list-identifiers t]
+ ["Banner" gnus-article-strip-banner t]
+ ["Boring headers" gnus-article-hide-boring-headers t])
+ ("Highlight"
+ ["All" gnus-article-highlight t]
+ ["Headers" gnus-article-highlight-headers t]
+ ["Signature" gnus-article-highlight-signature t]
+ ["Citation" gnus-article-highlight-citation t])
+ ("MIME"
+ ["Words" gnus-article-decode-mime-words t]
+ ["Charset" gnus-article-decode-charset t]
+ ["QP" gnus-article-de-quoted-unreadable t]
+ ["Base64" gnus-article-de-base64-unreadable t]
+ ["View MIME buttons" gnus-summary-display-buttonized t]
+ ["View MIME buttons in header"
+ gnus-mime-buttonize-attachments-in-header t]
+ ["View all" gnus-mime-view-all-parts t]
+ ["Verify and Decrypt" gnus-summary-force-verify-and-decrypt t]
+ ["Encrypt body" gnus-article-encrypt-body
+ :active (not (gnus-group-read-only-p))
+ ,@(if (featurep 'xemacs) nil
+ '(:help "Encrypt the message body on disk"))]
+ ["Extract all parts..." gnus-summary-save-parts t]
+ ("Multipart"
+ ["Repair multipart" gnus-summary-repair-multipart t]
+ ["Pipe part..." gnus-article-pipe-part t]
+ ["Inline part" gnus-article-inline-part t]
+ ["View part as type..." gnus-article-view-part-as-type t]
+ ["Encrypt body" gnus-article-encrypt-body
+ :active (not (gnus-group-read-only-p))
+ ,@(if (featurep 'xemacs) nil
+ '(:help "Encrypt the message body on disk"))]
+ ["View part externally" gnus-article-view-part-externally t]
+ ["View HTML parts in browser" gnus-article-browse-html-article t]
+ ["View part with charset..." gnus-article-view-part-as-charset t]
+ ["Copy part" gnus-article-copy-part t]
+ ["Save part..." gnus-article-save-part t]
+ ["View part" gnus-article-view-part t]))
+ ("Date"
+ ["Local" gnus-article-date-local t]
+ ["ISO8601" gnus-article-date-iso8601 t]
+ ["UT" gnus-article-date-ut t]
+ ["Original" gnus-article-date-original t]
+ ["Lapsed" gnus-article-date-lapsed t]
+ ["User-defined" gnus-article-date-user t])
+ ("Display"
+ ["Display HTML images" gnus-article-show-images t]
+ ["Remove images" gnus-article-remove-images t]
+ ["Toggle smiley" gnus-treat-smiley t]
+ ["Show X-Face" gnus-article-display-x-face t]
+ ["Show picons in From" gnus-treat-from-picon t]
+ ["Show picons in mail headers" gnus-treat-mail-picon t]
+ ["Show picons in news headers" gnus-treat-newsgroups-picon t]
+ ["Show Gravatars in From" gnus-treat-from-gravatar t]
+ ["Show Gravatars in mail headers" gnus-treat-mail-gravatar t]
+ ("View as different encoding"
+ ,@(gnus-summary-menu-split
+ (mapcar
+ (lambda (cs)
+ ;; Since easymenu under Emacs doesn't allow
+ ;; lambda forms for menu commands, we should
+ ;; provide intern'ed function symbols.
+ (let ((command (intern (format "\
+gnus-summary-show-article-from-menu-as-charset-%s" cs))))
+ (fset command
+ `(lambda ()
+ (interactive)
+ (let ((gnus-summary-show-article-charset-alist
+ '((1 . ,cs))))
+ (gnus-summary-show-article 1))))
+ `[,(symbol-name cs) ,command t]))
+ (sort (if (fboundp 'coding-system-list)
+ (coding-system-list)
+ (mapcar 'car mm-mime-mule-charset-alist))
+ 'string<)))))
+ ("Washing"
+ ("Remove Blanks"
+ ["Leading" gnus-article-strip-leading-blank-lines t]
+ ["Multiple" gnus-article-strip-multiple-blank-lines t]
+ ["Trailing" gnus-article-remove-trailing-blank-lines t]
+ ["All of the above" gnus-article-strip-blank-lines t]
+ ["All" gnus-article-strip-all-blank-lines t]
+ ["Leading space" gnus-article-strip-leading-space t]
+ ["Trailing space" gnus-article-strip-trailing-space t]
+ ["Leading space in headers"
+ gnus-article-remove-leading-whitespace t])
+ ["Overstrike" gnus-article-treat-overstrike t]
+ ["Dumb quotes" gnus-article-treat-dumbquotes t]
+ ["Non-ASCII" gnus-article-treat-non-ascii t]
+ ["Emphasis" gnus-article-emphasize t]
+ ["Word wrap" gnus-article-fill-cited-article t]
+ ["Fill long lines" gnus-article-fill-long-lines t]
+ ["Toggle truncate long lines" gnus-article-toggle-truncate-lines t]
+ ["Capitalize sentences" gnus-article-capitalize-sentences t]
+ ["Remove CR" gnus-article-remove-cr t]
+ ["Quoted-Printable" gnus-article-de-quoted-unreadable t]
+ ["Base64" gnus-article-de-base64-unreadable t]
+ ["Rot 13" gnus-summary-caesar-message
+ ,@(if (featurep 'xemacs) '(t)
+ '(:help "\"Caesar rotate\" article by 13"))]
+ ["De-IDNA" gnus-summary-idna-message t]
+ ["Morse decode" gnus-summary-morse-message t]
+ ["Unix pipe..." gnus-summary-pipe-message t]
+ ["Add buttons" gnus-article-add-buttons t]
+ ["Add buttons to head" gnus-article-add-buttons-to-head t]
+ ["Stop page breaking" gnus-summary-stop-page-breaking t]
+ ["Verbose header" gnus-summary-verbose-headers t]
+ ["Toggle header" gnus-summary-toggle-header t]
+ ["Unfold headers" gnus-article-treat-unfold-headers t]
+ ["Fold newsgroups" gnus-article-treat-fold-newsgroups t]
+ ["Html" gnus-article-wash-html t]
+ ["Unsplit URLs" gnus-article-unsplit-urls t]
+ ["Verify X-PGP-Sig" gnus-article-verify-x-pgp-sig t]
+ ["Decode HZ" gnus-article-decode-HZ t]
+ ["ANSI sequences" gnus-article-treat-ansi-sequences t]
+ ("(Outlook) Deuglify"
+ ["Unwrap lines" gnus-article-outlook-unwrap-lines t]
+ ["Repair attribution" gnus-article-outlook-repair-attribution t]
+ ["Rearrange citation" gnus-article-outlook-rearrange-citation t]
+ ["Full (Outlook) deuglify"
+ gnus-article-outlook-deuglify-article t])
+ )
+ ("Output"
+ ["Save in default format..." gnus-summary-save-article
+ ,@(if (featurep 'xemacs) '(t)
+ '(:help "Save article using default method"))]
+ ["Save in file..." gnus-summary-save-article-file
+ ,@(if (featurep 'xemacs) '(t)
+ '(:help "Save article in file"))]
+ ["Save in Unix mail format..." gnus-summary-save-article-mail t]
+ ["Save in MH folder..." gnus-summary-save-article-folder t]
+ ["Save in VM folder..." gnus-summary-save-article-vm t]
+ ["Save in RMAIL mbox..." gnus-summary-save-article-rmail t]
+ ["Save body in file..." gnus-summary-save-article-body-file t]
+ ["Pipe through a filter..." gnus-summary-pipe-output t]
+ ["Print with Muttprint..." gnus-summary-muttprint t]
+ ["Print" gnus-summary-print-article
+ ,@(if (featurep 'xemacs) '(t)
+ '(:help "Generate and print a PostScript image"))])
+ ("Copy, move,... (Backend)"
+ ,@(if (featurep 'xemacs) nil
+ '(:help "Copying, moving, expiring articles..."))
+ ["Respool article..." gnus-summary-respool-article t]
+ ["Move article..." gnus-summary-move-article
+ (gnus-check-backend-function
+ 'request-move-article gnus-newsgroup-name)]
+ ["Copy article..." gnus-summary-copy-article t]
+ ["Crosspost article..." gnus-summary-crosspost-article
+ (gnus-check-backend-function
+ 'request-replace-article gnus-newsgroup-name)]
+ ["Import file..." gnus-summary-import-article
+ (gnus-check-backend-function
+ 'request-accept-article gnus-newsgroup-name)]
+ ["Create article..." gnus-summary-create-article
+ (gnus-check-backend-function
+ 'request-accept-article gnus-newsgroup-name)]
+ ["Check if posted" gnus-summary-article-posted-p t]
+ ["Edit article" gnus-summary-edit-article
+ (not (gnus-group-read-only-p))]
+ ["Delete article" gnus-summary-delete-article
+ (gnus-check-backend-function
+ 'request-expire-articles gnus-newsgroup-name)]
+ ["Query respool" gnus-summary-respool-query t]
+ ["Trace respool" gnus-summary-respool-trace t]
+ ["Delete expirable articles" gnus-summary-expire-articles-now
+ (gnus-check-backend-function
+ 'request-expire-articles gnus-newsgroup-name)])
+ ("Extract"
+ ["Uudecode" gnus-uu-decode-uu
+ ,@(if (featurep 'xemacs) '(t)
+ '(:help "Decode uuencoded article(s)"))]
+ ["Uudecode and save" gnus-uu-decode-uu-and-save t]
+ ["Unshar" gnus-uu-decode-unshar t]
+ ["Unshar and save" gnus-uu-decode-unshar-and-save t]
+ ["Save" gnus-uu-decode-save t]
+ ["Binhex" gnus-uu-decode-binhex t]
+ ["PostScript" gnus-uu-decode-postscript t]
+ ["All MIME parts" gnus-summary-save-parts t])
+ ("Cache"
+ ["Enter article" gnus-cache-enter-article t]
+ ["Remove article" gnus-cache-remove-article t])
+ ["Translate" gnus-article-babel t]
+ ["Select article buffer" gnus-summary-select-article-buffer t]
+ ["Make article buffer sticky" gnus-sticky-article t]
+ ["Enter digest buffer" gnus-summary-enter-digest-group t]
+ ["Isearch article..." gnus-summary-isearch-article t]
+ ["Beginning of the article" gnus-summary-beginning-of-article t]
+ ["End of the article" gnus-summary-end-of-article t]
+ ["Fetch parent of article" gnus-summary-refer-parent-article t]
+ ["Fetch referenced articles" gnus-summary-refer-references t]
+ ["Fetch current thread" gnus-summary-refer-thread t]
+ ["Fetch article with id..." gnus-summary-refer-article t]
+ ["Setup Mailing List Params" gnus-mailing-list-insinuate t]
+ ["Redisplay" gnus-summary-show-article t]
+ ["Raw article" gnus-summary-show-raw-article :keys "C-u g"])))
+ (easy-menu-define
+ gnus-summary-article-menu gnus-summary-mode-map ""
+ (cons "Article" innards))
+
+ (if (not (keymapp gnus-summary-article-menu))
+ (easy-menu-define
+ gnus-article-commands-menu gnus-article-mode-map ""
+ (cons "Commands" innards))
+ ;; in Emacs, don't share menu.
+ (setq gnus-article-commands-menu
+ (copy-keymap gnus-summary-article-menu))
+ (define-key gnus-article-mode-map [menu-bar commands]
+ (cons "Commands" gnus-article-commands-menu))))
+
+ (easy-menu-define
+ gnus-summary-thread-menu gnus-summary-mode-map ""
+ '("Threads"
+ ["Find all messages in thread" gnus-summary-refer-thread t]
+ ["Toggle threading" gnus-summary-toggle-threads t]
+ ["Hide threads" gnus-summary-hide-all-threads t]
+ ["Show threads" gnus-summary-show-all-threads t]
+ ["Hide thread" gnus-summary-hide-thread t]
+ ["Show thread" gnus-summary-show-thread t]
+ ["Go to next thread" gnus-summary-next-thread t]
+ ["Go to previous thread" gnus-summary-prev-thread t]
+ ["Go down thread" gnus-summary-down-thread t]
+ ["Go up thread" gnus-summary-up-thread t]
+ ["Top of thread" gnus-summary-top-thread t]
+ ["Mark thread as read" gnus-summary-kill-thread t]
+ ["Mark thread as expired" gnus-summary-expire-thread t]
+ ["Lower thread score" gnus-summary-lower-thread t]
+ ["Raise thread score" gnus-summary-raise-thread t]
+ ["Rethread current" gnus-summary-rethread-current t]))
+
+ (easy-menu-define
+ gnus-summary-post-menu gnus-summary-mode-map ""
+ `("Post"
+ ["Send a message (mail or news)" gnus-summary-post-news
+ ,@(if (featurep 'xemacs) '(t)
+ '(:help "Compose a new message (mail or news)"))]
+ ["Followup" gnus-summary-followup
+ ,@(if (featurep 'xemacs) '(t)
+ '(:help "Post followup to this article"))]
+ ["Followup and yank" gnus-summary-followup-with-original
+ ,@(if (featurep 'xemacs) '(t)
+ '(:help "Post followup to this article, quoting its contents"))]
+ ["Supersede article" gnus-summary-supersede-article t]
+ ["Cancel article" gnus-summary-cancel-article
+ ,@(if (featurep 'xemacs) '(t)
+ '(:help "Cancel an article you posted"))]
+ ["Reply" gnus-summary-reply t]
+ ["Reply and yank" gnus-summary-reply-with-original t]
+ ["Wide reply" gnus-summary-wide-reply t]
+ ["Wide reply and yank" gnus-summary-wide-reply-with-original
+ ,@(if (featurep 'xemacs) '(t)
+ '(:help "Mail a reply, quoting this article"))]
+ ["Very wide reply" gnus-summary-very-wide-reply t]
+ ["Very wide reply and yank" gnus-summary-very-wide-reply-with-original
+ ,@(if (featurep 'xemacs) '(t)
+ '(:help "Mail a very wide reply, quoting this article"))]
+ ["Mail forward" gnus-summary-mail-forward t]
+ ["Post forward" gnus-summary-post-forward t]
+ ["Digest and mail" gnus-uu-digest-mail-forward t]
+ ["Digest and post" gnus-uu-digest-post-forward t]
+ ["Resend message" gnus-summary-resend-message t]
+ ["Resend message edit" gnus-summary-resend-message-edit t]
+ ["Send bounced mail" gnus-summary-resend-bounced-mail t]
+ ["Send a mail" gnus-summary-mail-other-window t]
+ ["Create a local message" gnus-summary-news-other-window t]
+ ["Uuencode and post" gnus-uu-post-news
+ ,@(if (featurep 'xemacs) '(t)
+ '(:help "Post a uuencoded article"))]
+ ["Followup via news" gnus-summary-followup-to-mail t]
+ ["Followup via news and yank"
+ gnus-summary-followup-to-mail-with-original t]
+ ["Strip signature on reply"
+ (lambda ()
+ (interactive)
+ (if (not (memq message-cite-function
+ '(message-cite-original-without-signature
+ message-cite-original)))
+ ;; Stupid workaround for XEmacs not honoring :visible.
+ (message "Can't toggle this value of `message-cite-function'")
+ (setq message-cite-function
+ (if (eq message-cite-function
+ 'message-cite-original-without-signature)
+ 'message-cite-original
+ 'message-cite-original-without-signature))))
+ ;; XEmacs barfs on :visible.
+ ,@(if (featurep 'xemacs) nil
+ '(:visible (memq message-cite-function
+ '(message-cite-original-without-signature
+ message-cite-original))))
+ :style toggle
+ :selected (eq message-cite-function
+ 'message-cite-original-without-signature)
+ ,@(if (featurep 'xemacs) nil
+ '(:help "Strip signature from cited article when replying."))]
+ ;;("Draft"
+ ;;["Send" gnus-summary-send-draft t]
+ ;;["Send bounced" gnus-resend-bounced-mail t])
+ ))
+
+ (cond
+ ((not (keymapp gnus-summary-post-menu))
+ (setq gnus-article-post-menu gnus-summary-post-menu))
+ ((not gnus-article-post-menu)
+ ;; Don't share post menu.
+ (setq gnus-article-post-menu
+ (copy-keymap gnus-summary-post-menu))))
+ (define-key gnus-article-mode-map [menu-bar post]
+ (cons "Post" gnus-article-post-menu))
+
+ (easy-menu-define
+ gnus-summary-misc-menu gnus-summary-mode-map ""
+ `("Gnus"
+ ("Mark Read"
+ ["Mark as read" gnus-summary-mark-as-read-forward t]
+ ["Mark same subject and select"
+ gnus-summary-kill-same-subject-and-select t]
+ ["Mark same subject" gnus-summary-kill-same-subject t]
+ ["Catchup" gnus-summary-catchup
+ ,@(if (featurep 'xemacs) '(t)
+ '(:help "Mark unread articles in this group as read"))]
+ ["Catchup all" gnus-summary-catchup-all t]
+ ["Catchup to here" gnus-summary-catchup-to-here t]
+ ["Catchup from here" gnus-summary-catchup-from-here t]
+ ["Catchup region" gnus-summary-mark-region-as-read
+ (gnus-mark-active-p)]
+ ["Mark excluded" gnus-summary-limit-mark-excluded-as-read t])
+ ("Mark Various"
+ ["Tick" gnus-summary-tick-article-forward t]
+ ["Mark as dormant" gnus-summary-mark-as-dormant t]
+ ["Remove marks" gnus-summary-clear-mark-forward t]
+ ["Set expirable mark" gnus-summary-mark-as-expirable t]
+ ["Set bookmark" gnus-summary-set-bookmark t]
+ ["Remove bookmark" gnus-summary-remove-bookmark t])
+ ("Limit to"
+ ["Marks..." gnus-summary-limit-to-marks t]
+ ["Subject..." gnus-summary-limit-to-subject t]
+ ["Author..." gnus-summary-limit-to-author t]
+ ["Recipient..." gnus-summary-limit-to-recipient t]
+ ["Address..." gnus-summary-limit-to-address t]
+ ["Age..." gnus-summary-limit-to-age t]
+ ["Extra..." gnus-summary-limit-to-extra t]
+ ["Score..." gnus-summary-limit-to-score t]
+ ["Display Predicate" gnus-summary-limit-to-display-predicate t]
+ ["Unread" gnus-summary-limit-to-unread t]
+ ["Unseen" gnus-summary-limit-to-unseen t]
+ ["Singletons" gnus-summary-limit-to-singletons t]
+ ["Replied" gnus-summary-limit-to-replied t]
+ ["Non-dormant" gnus-summary-limit-exclude-dormant t]
+ ["Next or process marked articles" gnus-summary-limit-to-articles t]
+ ["Pop limit" gnus-summary-pop-limit t]
+ ["Show dormant" gnus-summary-limit-include-dormant t]
+ ["Hide childless dormant"
+ gnus-summary-limit-exclude-childless-dormant t]
+ ;;["Hide thread" gnus-summary-limit-exclude-thread t]
+ ["Hide marked" gnus-summary-limit-exclude-marks t]
+ ["Show expunged" gnus-summary-limit-include-expunged t])
+ ("Process Mark"
+ ["Set mark" gnus-summary-mark-as-processable t]
+ ["Remove mark" gnus-summary-unmark-as-processable t]
+ ["Remove all marks" gnus-summary-unmark-all-processable t]
+ ["Invert marks" gnus-uu-invert-processable t]
+ ["Mark above" gnus-uu-mark-over t]
+ ["Mark series" gnus-uu-mark-series t]
+ ["Mark region" gnus-uu-mark-region (gnus-mark-active-p)]
+ ["Unmark region" gnus-uu-unmark-region (gnus-mark-active-p)]
+ ["Mark by regexp..." gnus-uu-mark-by-regexp t]
+ ["Unmark by regexp..." gnus-uu-unmark-by-regexp t]
+ ["Mark all" gnus-uu-mark-all t]
+ ["Mark buffer" gnus-uu-mark-buffer t]
+ ["Mark sparse" gnus-uu-mark-sparse t]
+ ["Mark thread" gnus-uu-mark-thread t]
+ ["Unmark thread" gnus-uu-unmark-thread t]
+ ("Process Mark Sets"
+ ["Kill" gnus-summary-kill-process-mark t]
+ ["Yank" gnus-summary-yank-process-mark
+ gnus-newsgroup-process-stack]
+ ["Save" gnus-summary-save-process-mark t]
+ ["Run command on marked..." gnus-summary-universal-argument t]))
+ ("Registry Marks")
+ ("Scroll article"
+ ["Page forward" gnus-summary-next-page
+ ,@(if (featurep 'xemacs) '(t)
+ '(:help "Show next page of article"))]
+ ["Page backward" gnus-summary-prev-page
+ ,@(if (featurep 'xemacs) '(t)
+ '(:help "Show previous page of article"))]
+ ["Line forward" gnus-summary-scroll-up t])
+ ("Move"
+ ["Next unread article" gnus-summary-next-unread-article t]
+ ["Previous unread article" gnus-summary-prev-unread-article t]
+ ["Next article" gnus-summary-next-article t]
+ ["Previous article" gnus-summary-prev-article t]
+ ["Next unread subject" gnus-summary-next-unread-subject t]
+ ["Previous unread subject" gnus-summary-prev-unread-subject t]
+ ["Next article same subject" gnus-summary-next-same-subject t]
+ ["Previous article same subject" gnus-summary-prev-same-subject t]
+ ["First unread article" gnus-summary-first-unread-article t]
+ ["Best unread article" gnus-summary-best-unread-article t]
+ ["Go to subject number..." gnus-summary-goto-subject t]
+ ["Go to article number..." gnus-summary-goto-article t]
+ ["Go to the last article" gnus-summary-goto-last-article t]
+ ["Pop article off history" gnus-summary-pop-article t])
+ ("Sort"
+ ["Sort by number" gnus-summary-sort-by-number t]
+ ["Sort by most recent number" gnus-summary-sort-by-most-recent-number t]
+ ["Sort by author" gnus-summary-sort-by-author t]
+ ["Sort by recipient" gnus-summary-sort-by-recipient t]
+ ["Sort by subject" gnus-summary-sort-by-subject t]
+ ["Sort by date" gnus-summary-sort-by-date t]
+ ["Sort by most recent date" gnus-summary-sort-by-most-recent-date t]
+ ["Sort by score" gnus-summary-sort-by-score t]
+ ["Sort by lines" gnus-summary-sort-by-lines t]
+ ["Sort by characters" gnus-summary-sort-by-chars t]
+ ["Randomize" gnus-summary-sort-by-random t]
+ ["Original sort" gnus-summary-sort-by-original t])
+ ("Help"
+ ["Describe group" gnus-summary-describe-group t]
+ ["Read manual" gnus-info-find-node t])
+ ("Modes"
+ ["Pick and read" gnus-pick-mode t]
+ ["Binary" gnus-binary-mode t])
+ ("Regeneration"
+ ["Regenerate" gnus-summary-prepare t]
+ ["Insert cached articles" gnus-summary-insert-cached-articles t]
+ ["Insert dormant articles" gnus-summary-insert-dormant-articles t]
+ ["Insert ticked articles" gnus-summary-insert-ticked-articles t]
+ ["Toggle threading" gnus-summary-toggle-threads t])
+ ["See old articles" gnus-summary-insert-old-articles t]
+ ["See new articles" gnus-summary-insert-new-articles t]
+ ["Filter articles..." gnus-summary-execute-command t]
+ ["Run command on articles..." gnus-summary-universal-argument t]
+ ["Search articles forward..." gnus-summary-search-article-forward t]
+ ["Search articles backward..." gnus-summary-search-article-backward t]
+ ["Toggle line truncation" gnus-summary-toggle-truncation t]
+ ["Expand window" gnus-summary-expand-window t]
+ ["Expire expirable articles" gnus-summary-expire-articles
+ (gnus-check-backend-function
+ 'request-expire-articles gnus-newsgroup-name)]
+ ["Edit local kill file" gnus-summary-edit-local-kill t]
+ ["Edit main kill file" gnus-summary-edit-global-kill t]
+ ["Edit group parameters" gnus-summary-edit-parameters t]
+ ["Customize group parameters" gnus-summary-customize-parameters t]
+ ["Send a bug report" gnus-bug t]
+ ("Exit"
+ ["Catchup and exit" gnus-summary-catchup-and-exit
+ ,@(if (featurep 'xemacs) '(t)
+ '(:help "Mark unread articles in this group as read, then exit"))]
+ ["Catchup all and exit" gnus-summary-catchup-all-and-exit t]
+ ["Catchup and goto next" gnus-summary-catchup-and-goto-next-group t]
+ ["Catchup and goto prev" gnus-summary-catchup-and-goto-prev-group t]
+ ["Exit group" gnus-summary-exit
+ ,@(if (featurep 'xemacs) '(t)
+ '(:help "Exit current group, return to group selection mode"))]
+ ["Exit group without updating" gnus-summary-exit-no-update t]
+ ["Exit and goto next group" gnus-summary-next-group t]
+ ["Exit and goto prev group" gnus-summary-prev-group t]
+ ["Reselect group" gnus-summary-reselect-current-group t]
+ ["Rescan group" gnus-summary-rescan-group t]
+ ["Update dribble" gnus-summary-save-newsrc t])))
+
+ (gnus-run-hooks 'gnus-summary-menu-hook)))
+
+(defvar gnus-summary-tool-bar-map nil)
+
+;; Note: The :set function in the `gnus-summary-tool-bar*' variables will only
+;; affect _new_ message buffers. We might add a function that walks thru all
+;; summary-mode buffers and force the update.
+(defun gnus-summary-tool-bar-update (&optional symbol value)
+ "Update summary mode toolbar.
+Setter function for custom variables."
+ (setq-default gnus-summary-tool-bar-map nil)
+ (when symbol
+ ;; When used as ":set" function:
+ (set-default symbol value))
+ (when (gnus-buffer-live-p gnus-summary-buffer)
+ (with-current-buffer gnus-summary-buffer
+ (gnus-summary-make-tool-bar))))
+
+(defcustom gnus-summary-tool-bar (if (eq gmm-tool-bar-style 'gnome)
+ 'gnus-summary-tool-bar-gnome
+ 'gnus-summary-tool-bar-retro)
+ "Specifies the Gnus summary tool bar.
+
+It can be either a list or a symbol referring to a list. See
+`gmm-tool-bar-from-list' for the format of the list. The
+default key map is `gnus-summary-mode-map'.
+
+Pre-defined symbols include `gnus-summary-tool-bar-gnome' and
+`gnus-summary-tool-bar-retro'."
+ :type '(choice (const :tag "GNOME style" gnus-summary-tool-bar-gnome)
+ (const :tag "Retro look" gnus-summary-tool-bar-retro)
+ (repeat :tag "User defined list" gmm-tool-bar-item)
+ (symbol))
+ :version "23.1" ;; No Gnus
+ :initialize 'custom-initialize-default
+ :set 'gnus-summary-tool-bar-update
+ :group 'gnus-summary)
+
+(defcustom gnus-summary-tool-bar-gnome
+ '((gnus-summary-post-news "mail/compose" nil)
+ (gnus-summary-insert-new-articles "mail/inbox" nil
+ :visible (or (not gnus-agent)
+ gnus-plugged))
+ (gnus-summary-reply-with-original "mail/reply")
+ (gnus-summary-reply "mail/reply" nil :visible nil)
+ (gnus-summary-followup-with-original "mail/reply-all")
+ (gnus-summary-followup "mail/reply-all" nil :visible nil)
+ (gnus-summary-mail-forward "mail/forward")
+ (gnus-summary-save-article "mail/save")
+ (gnus-summary-search-article-forward "search" nil :visible nil)
+ (gnus-summary-print-article "print")
+ (gnus-summary-tick-article-forward "flag-followup" nil :visible nil)
+ ;; Some new commands that may need more suitable icons:
+ (gnus-summary-save-newsrc "save" nil :visible nil)
+ ;; (gnus-summary-show-article "stock_message-display" nil :visible nil)
+ (gnus-summary-prev-article "left-arrow")
+ (gnus-summary-next-article "right-arrow")
+ (gnus-summary-next-page "next-page")
+ ;; (gnus-summary-enter-digest-group "right_arrow" nil :visible nil)
+ ;;
+ ;; Maybe some sort-by-... could be added:
+ ;; (gnus-summary-sort-by-author "sort-a-z" nil :visible nil)
+ ;; (gnus-summary-sort-by-date "sort-1-9" nil :visible nil)
+ (gnus-summary-mark-as-expirable
+ "delete" nil
+ :visible (gnus-check-backend-function 'request-expire-articles
+ gnus-newsgroup-name))
+ (gnus-summary-mark-as-spam
+ "mail/spam" t
+ :visible (and (fboundp 'spam-group-ham-contents-p)
+ (spam-group-ham-contents-p gnus-newsgroup-name))
+ :help "Mark as spam")
+ (gnus-summary-mark-as-read-forward
+ "mail/not-spam" nil
+ :visible (and (fboundp 'spam-group-spam-contents-p)
+ (spam-group-spam-contents-p gnus-newsgroup-name)))
+ ;;
+ (gnus-summary-exit "exit")
+ (gmm-customize-mode "preferences" t :help "Edit mode preferences")
+ (gnus-info-find-node "help"))
+ "List of functions for the summary tool bar (GNOME style).
+
+See `gmm-tool-bar-from-list' for the format of the list."
+ :type '(repeat gmm-tool-bar-item)
+ :version "23.1" ;; No Gnus
+ :initialize 'custom-initialize-default
+ :set 'gnus-summary-tool-bar-update
+ :group 'gnus-summary)
+
+(defcustom gnus-summary-tool-bar-retro
+ '((gnus-summary-prev-unread-article "gnus/prev-ur")
+ (gnus-summary-next-unread-article "gnus/next-ur")
+ (gnus-summary-post-news "gnus/post")
+ (gnus-summary-followup-with-original "gnus/fuwo")
+ (gnus-summary-followup "gnus/followup")
+ (gnus-summary-reply-with-original "gnus/reply-wo")
+ (gnus-summary-reply "gnus/reply")
+ (gnus-summary-caesar-message "gnus/rot13")
+ (gnus-uu-decode-uu "gnus/uu-decode")
+ (gnus-summary-save-article-file "gnus/save-aif")
+ (gnus-summary-save-article "gnus/save-art")
+ (gnus-uu-post-news "gnus/uu-post")
+ (gnus-summary-catchup "gnus/catchup")
+ (gnus-summary-catchup-and-exit "gnus/cu-exit")
+ (gnus-summary-exit "gnus/exit-summ")
+ ;; Some new command that may need more suitable icons:
+ (gnus-summary-print-article "gnus/print" nil :visible nil)
+ (gnus-summary-mark-as-expirable "gnus/close" nil :visible nil)
+ (gnus-summary-save-newsrc "gnus/save" nil :visible nil)
+ ;; (gnus-summary-enter-digest-group "gnus/right_arrow" nil :visible nil)
+ (gnus-summary-search-article-forward "gnus/search" nil :visible nil)
+ ;; (gnus-summary-insert-new-articles "gnus/paste" nil :visible nil)
+ ;; (gnus-summary-toggle-threads "gnus/open" nil :visible nil)
+ ;;
+ (gnus-info-find-node "gnus/help" nil :visible nil))
+ "List of functions for the summary tool bar (retro look).
+
+See `gmm-tool-bar-from-list' for the format of the list."
+ :type '(repeat gmm-tool-bar-item)
+ :version "23.1" ;; No Gnus
+ :initialize 'custom-initialize-default
+ :set 'gnus-summary-tool-bar-update
+ :group 'gnus-summary)
+
+(defcustom gnus-summary-tool-bar-zap-list t
+ "List of icon items from the global tool bar.
+These items are not displayed in the Gnus summary mode tool bar.
+
+See `gmm-tool-bar-from-list' for the format of the list."
+ :type 'gmm-tool-bar-zap-list
+ :version "23.1" ;; No Gnus
+ :initialize 'custom-initialize-default
+ :set 'gnus-summary-tool-bar-update
+ :group 'gnus-summary)
+
+(defvar image-load-path)
+(defvar tool-bar-map)
+
+(defun gnus-summary-make-tool-bar (&optional force)
+ "Make a summary mode tool bar from `gnus-summary-tool-bar'.
+When FORCE, rebuild the tool bar."
+ (when (and (not (featurep 'xemacs))
+ (boundp 'tool-bar-mode)
+ tool-bar-mode
+ (or (not gnus-summary-tool-bar-map) force))
+ (let* ((load-path
+ (gmm-image-load-path-for-library "gnus"
+ "mail/save.xpm"
+ nil t))
+ (image-load-path (cons (car load-path)
+ (when (boundp 'image-load-path)
+ image-load-path)))
+ (map (gmm-tool-bar-from-list gnus-summary-tool-bar
+ gnus-summary-tool-bar-zap-list
+ 'gnus-summary-mode-map)))
+ (when map
+ ;; Need to set `gnus-summary-tool-bar-map' because `gnus-article-mode'
+ ;; uses its value.
+ (setq gnus-summary-tool-bar-map map))))
+ (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map))
+
+(defun gnus-make-score-map (type)
+ "Make a summary score map of type TYPE."
+ (if t
+ nil
+ (let ((headers '(("author" "from" string)
+ ("subject" "subject" string)
+ ("article body" "body" string)
+ ("article head" "head" string)
+ ("xref" "xref" string)
+ ("extra header" "extra" string)
+ ("lines" "lines" number)
+ ("followups to author" "followup" string)))
+ (types '((number ("less than" <)
+ ("greater than" >)
+ ("equal" =))
+ (string ("substring" s)
+ ("exact string" e)
+ ("fuzzy string" f)
+ ("regexp" r))))
+ (perms '(("temporary" (current-time-string))
+ ("permanent" nil)
+ ("immediate" now)))
+ header)
+ (list
+ (apply
+ 'nconc
+ (list
+ (if (eq type 'lower)
+ "Lower score"
+ "Increase score"))
+ (let (outh)
+ (while headers
+ (setq header (car headers))
+ (setq outh
+ (cons
+ (apply
+ 'nconc
+ (list (car header))
+ (let ((ts (cdr (assoc (nth 2 header) types)))
+ outt)
+ (while ts
+ (setq outt
+ (cons
+ (apply
+ 'nconc
+ (list (caar ts))
+ (let ((ps perms)
+ outp)
+ (while ps
+ (setq outp
+ (cons
+ (vector
+ (caar ps)
+ (list
+ 'gnus-summary-score-entry
+ (nth 1 header)
+ (if (or (string= (nth 1 header)
+ "head")
+ (string= (nth 1 header)
+ "body"))
+ ""
+ (list 'gnus-summary-header
+ (nth 1 header)))
+ (list 'quote (nth 1 (car ts)))
+ (list 'gnus-score-delta-default
+ nil)
+ (nth 1 (car ps))
+ t)
+ t)
+ outp))
+ (setq ps (cdr ps)))
+ (list (nreverse outp))))
+ outt))
+ (setq ts (cdr ts)))
+ (list (nreverse outt))))
+ outh))
+ (setq headers (cdr headers)))
+ (list (nreverse outh))))))))
+
+
+(declare-function turn-on-gnus-mailing-list-mode "gnus-ml" ())
+(defvar bookmark-make-record-function)
+\f
+(defvar bidi-paragraph-direction)
+
+(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}"
+ ;; FIXME: Use define-derived-mode.
+ (interactive)
+ (kill-all-local-variables)
+ (let ((gnus-summary-local-variables gnus-newsgroup-variables))
+ (gnus-summary-make-local-variables))
+ (gnus-summary-make-local-variables)
+ (setq gnus-newsgroup-name group)
+ (when (gnus-visual-p 'summary-menu 'menu)
+ (gnus-summary-make-menu-bar)
+ (gnus-summary-make-tool-bar))
+ (gnus-make-thread-indent-array)
+ (gnus-simplify-mode-line)
+ (setq major-mode 'gnus-summary-mode)
+ (setq mode-name "Summary")
+ (use-local-map gnus-summary-mode-map)
+ (buffer-disable-undo)
+ (setq buffer-read-only t ;Disable modification
+ show-trailing-whitespace nil)
+ (setq truncate-lines t)
+ ;; Force paragraph direction to be left-to-right. Don't make it
+ ;; bound globally in old Emacsen and XEmacsen.
+ (set (make-local-variable 'bidi-paragraph-direction) 'left-to-right)
+ (add-to-invisibility-spec '(gnus-sum . t))
+ (gnus-summary-set-display-table)
+ (gnus-set-default-directory)
+ (make-local-variable 'gnus-summary-line-format)
+ (make-local-variable 'gnus-summary-line-format-spec)
+ (make-local-variable 'gnus-summary-dummy-line-format)
+ (make-local-variable 'gnus-summary-dummy-line-format-spec)
+ (make-local-variable 'gnus-summary-mark-positions)
+ (gnus-make-local-hook 'pre-command-hook)
+ (add-hook 'pre-command-hook 'gnus-set-global-variables nil t)
+ (gnus-run-mode-hooks 'gnus-summary-mode-hook)
+ (turn-on-gnus-mailing-list-mode)
+ (mm-enable-multibyte)
+ (set (make-local-variable 'bookmark-make-record-function)
+ 'gnus-summary-bookmark-make-record)
+ (gnus-update-format-specifications nil 'summary 'summary-mode 'summary-dummy)
+ (gnus-update-summary-mark-positions))
+
+(defun gnus-summary-make-local-variables ()
+ "Make all the local summary buffer variables."
+ (let (global)
+ (dolist (local gnus-summary-local-variables)
+ (if (consp local)
+ (progn
+ (if (eq (cdr local) 'global)
+ ;; Copy the global value of the variable.
+ (setq global (symbol-value (car local)))
+ ;; Use the value from the list.
+ (setq global (eval (cdr local))))
+ (set (make-local-variable (car local)) global))
+ ;; Simple nil-valued local variable.
+ (set (make-local-variable local) nil)))))
+
+;; Summary data functions.
+
+(defmacro gnus-data-number (data)
+ `(car ,data))
+
+(defmacro gnus-data-set-number (data number)
+ `(setcar ,data ,number))
+
+(defmacro gnus-data-mark (data)
+ `(nth 1 ,data))
+
+(defmacro gnus-data-set-mark (data mark)
+ `(setcar (nthcdr 1 ,data) ,mark))
+
+(defmacro gnus-data-pos (data)
+ `(nth 2 ,data))
+
+(defmacro gnus-data-set-pos (data pos)
+ `(setcar (nthcdr 2 ,data) ,pos))
+
+(defmacro gnus-data-header (data)
+ `(nth 3 ,data))
+
+(defmacro gnus-data-set-header (data header)
+ `(setf (nth 3 ,data) ,header))
+
+(defmacro gnus-data-level (data)
+ `(nth 4 ,data))
+
+(defmacro gnus-data-unread-p (data)
+ `(= (nth 1 ,data) gnus-unread-mark))
+
+(defmacro gnus-data-read-p (data)
+ `(/= (nth 1 ,data) gnus-unread-mark))
+
+(defmacro gnus-data-pseudo-p (data)
+ `(consp (nth 3 ,data)))
+
+(defmacro gnus-data-find (number)
+ `(assq ,number gnus-newsgroup-data))
+
+(defmacro gnus-data-find-list (number &optional data)
+ `(let ((bdata ,(or data 'gnus-newsgroup-data)))
+ (memq (assq ,number bdata)
+ bdata)))
+
+(defmacro gnus-data-make (number mark pos header level)
+ `(list ,number ,mark ,pos ,header ,level))
+
+(defun gnus-data-enter (after-article number mark pos header level offset)
+ (let ((data (gnus-data-find-list after-article)))
+ (unless data
+ (error "No such article: %d" after-article))
+ (setcdr data (cons (gnus-data-make number mark pos header level)
+ (cdr data)))
+ (setq gnus-newsgroup-data-reverse nil)
+ (gnus-data-update-list (cddr data) offset)))
+
+(defun gnus-data-enter-list (after-article list &optional offset)
+ (when list
+ (let ((data (and after-article (gnus-data-find-list after-article)))
+ (ilist list))
+ (if (not (or data
+ after-article))
+ (let ((odata gnus-newsgroup-data))
+ (setq gnus-newsgroup-data (nconc list gnus-newsgroup-data))
+ (when offset
+ (gnus-data-update-list odata offset)))
+ ;; Find the last element in the list to be spliced into the main
+ ;; list.
+ (setq list (last list))
+ (if (not data)
+ (progn
+ (setcdr list gnus-newsgroup-data)
+ (setq gnus-newsgroup-data ilist)
+ (when offset
+ (gnus-data-update-list (cdr list) offset)))
+ (setcdr list (cdr data))
+ (setcdr data ilist)
+ (when offset
+ (gnus-data-update-list (cdr list) offset))))
+ (setq gnus-newsgroup-data-reverse nil))))
+
+(defun gnus-data-remove (article &optional offset)
+ (let ((data gnus-newsgroup-data))
+ (if (= (gnus-data-number (car data)) article)
+ (progn
+ (setq gnus-newsgroup-data (cdr gnus-newsgroup-data)
+ gnus-newsgroup-data-reverse nil)
+ (when offset
+ (gnus-data-update-list gnus-newsgroup-data offset)))
+ (while (cdr data)
+ (when (= (gnus-data-number (cadr data)) article)
+ (setcdr data (cddr data))
+ (when offset
+ (gnus-data-update-list (cdr data) offset))
+ (setq data nil
+ gnus-newsgroup-data-reverse nil))
+ (setq data (cdr data))))))
+
+(defmacro gnus-data-list (backward)
+ `(if ,backward
+ (or gnus-newsgroup-data-reverse
+ (setq gnus-newsgroup-data-reverse
+ (reverse gnus-newsgroup-data)))
+ gnus-newsgroup-data))
+
+(defun gnus-data-update-list (data offset)
+ "Add OFFSET to the POS of all data entries in DATA."
+ (setq gnus-newsgroup-data-reverse nil)
+ (while data
+ (setcar (nthcdr 2 (car data)) (+ offset (nth 2 (car data))))
+ (setq data (cdr data))))
+
+(defun gnus-summary-article-pseudo-p (article)
+ "Say whether this article is a pseudo article or not."
+ (not (vectorp (gnus-data-header (gnus-data-find article)))))
+
+(defmacro gnus-summary-article-sparse-p (article)
+ "Say whether this article is a sparse article or not."
+ `(memq ,article gnus-newsgroup-sparse))
+
+(defmacro gnus-summary-article-ancient-p (article)
+ "Say whether this article is a sparse article or not."
+ `(memq ,article gnus-newsgroup-ancient))
+
+(defun gnus-article-children (number)
+ "Return a list of all children to NUMBER."
+ (let* ((data (gnus-data-find-list number))
+ (level (gnus-data-level (car data)))
+ children)
+ (setq data (cdr data))
+ (while (and data
+ (= (gnus-data-level (car data)) (1+ level)))
+ (push (gnus-data-number (car data)) children)
+ (setq data (cdr data)))
+ children))
+
+(defmacro gnus-summary-skip-intangible ()
+ "If the current article is intangible, then jump to a different article."
+ '(let ((to (get-text-property (point) 'gnus-intangible)))
+ (and to (gnus-summary-goto-subject to))))
+
+(defmacro gnus-summary-article-intangible-p ()
+ "Say whether this article is intangible or not."
+ '(get-text-property (point) 'gnus-intangible))
+
+;; Some summary mode macros.
+
+(defmacro gnus-summary-article-number ()
+ "The article number of the article on the current line.
+If there isn't an article number here, then we return the current
+article number."
+ '(progn
+ (gnus-summary-skip-intangible)
+ (or (get-text-property (point) 'gnus-number)
+ (gnus-summary-last-subject))))
+
+(defmacro gnus-summary-article-header (&optional number)
+ "Return the header of article NUMBER."
+ `(gnus-data-header (gnus-data-find
+ ,(or number '(gnus-summary-article-number)))))
+
+(defmacro gnus-summary-thread-level (&optional number)
+ "Return the level of thread that starts with article NUMBER."
+ `(if (and (eq gnus-summary-make-false-root 'dummy)
+ (get-text-property (point) 'gnus-intangible))
+ 0
+ (gnus-data-level (gnus-data-find
+ ,(or number '(gnus-summary-article-number))))))
+
+(defmacro gnus-summary-article-mark (&optional number)
+ "Return the mark of article NUMBER."
+ `(gnus-data-mark (gnus-data-find
+ ,(or number '(gnus-summary-article-number)))))
+
+(defmacro gnus-summary-article-pos (&optional number)
+ "Return the position of the line of article NUMBER."
+ `(gnus-data-pos (gnus-data-find
+ ,(or number '(gnus-summary-article-number)))))
+
+(defalias 'gnus-summary-subject-string 'gnus-summary-article-subject)
+(defmacro gnus-summary-article-subject (&optional number)
+ "Return current subject string or nil if nothing."
+ `(let ((headers
+ ,(if number
+ `(gnus-data-header (assq ,number gnus-newsgroup-data))
+ '(gnus-data-header (assq (gnus-summary-article-number)
+ gnus-newsgroup-data)))))
+ (and headers
+ (vectorp headers)
+ (mail-header-subject headers))))
+
+(defmacro gnus-summary-article-score (&optional number)
+ "Return current article score."
+ `(or (cdr (assq ,(or number '(gnus-summary-article-number))
+ gnus-newsgroup-scored))
+ gnus-summary-default-score 0))
+
+(defun gnus-summary-article-children (&optional number)
+ "Return a list of article numbers that are children of article NUMBER."
+ (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))))
+ (level (gnus-data-level (car data)))
+ l children)
+ (while (and (setq data (cdr data))
+ (> (setq l (gnus-data-level (car data))) level))
+ (and (= (1+ level) l)
+ (push (gnus-data-number (car data))
+ children)))
+ (nreverse children)))
+
+(defun gnus-summary-article-parent (&optional number)
+ "Return the article number of the parent of article NUMBER."
+ (let* ((data (gnus-data-find-list (or number (gnus-summary-article-number))
+ (gnus-data-list t)))
+ (level (gnus-data-level (car data))))
+ (if (zerop level)
+ () ; This is a root.
+ ;; We search until we find an article with a level less than
+ ;; this one. That function has to be the parent.
+ (while (and (setq data (cdr data))
+ (not (< (gnus-data-level (car data)) level))))
+ (and data (gnus-data-number (car data))))))
+
+(defun gnus-unread-mark-p (mark)
+ "Say whether MARK is the unread mark."
+ (= mark gnus-unread-mark))
+
+(defun gnus-read-mark-p (mark)
+ "Say whether MARK is one of the marks that mark as read.
+This is all marks except unread, ticked, dormant, and expirable."
+ (not (or (= mark gnus-unread-mark)
+ (= mark gnus-ticked-mark)
+ (= mark gnus-spam-mark)
+ (= mark gnus-dormant-mark)
+ (= mark gnus-expirable-mark))))
+
+(defmacro gnus-article-mark (number)
+ "Return the MARK of article NUMBER.
+This macro should only be used when computing the mark the \"first\"
+time; i.e., when generating the summary lines. After that,
+`gnus-summary-article-mark' should be used to examine the
+marks of articles."
+ `(cond
+ ((memq ,number gnus-newsgroup-unsendable) gnus-unsendable-mark)
+ ((memq ,number gnus-newsgroup-downloadable) gnus-downloadable-mark)
+ ((memq ,number gnus-newsgroup-unreads) gnus-unread-mark)
+ ((memq ,number gnus-newsgroup-marked) gnus-ticked-mark)
+ ((memq ,number gnus-newsgroup-spam-marked) gnus-spam-mark)
+ ((memq ,number gnus-newsgroup-dormant) gnus-dormant-mark)
+ ((memq ,number gnus-newsgroup-expirable) gnus-expirable-mark)
+ (t (or (cdr (assq ,number gnus-newsgroup-reads))
+ gnus-ancient-mark))))
+
+;; Saving hidden threads.
+
+(defmacro gnus-save-hidden-threads (&rest forms)
+ "Save hidden threads, eval FORMS, and restore the hidden threads."
+ (let ((config (make-symbol "config")))
+ `(let ((,config (gnus-hidden-threads-configuration)))
+ (unwind-protect
+ (save-excursion
+ ,@forms)
+ (gnus-restore-hidden-threads-configuration ,config)))))
+(put 'gnus-save-hidden-threads 'lisp-indent-function 0)
+(put 'gnus-save-hidden-threads 'edebug-form-spec '(body))
+
+(defun gnus-data-compute-positions ()
+ "Compute the positions of all articles."
+ (setq gnus-newsgroup-data-reverse nil)
+ (let ((data gnus-newsgroup-data))
+ (save-excursion
+ (gnus-save-hidden-threads
+ (gnus-summary-show-all-threads)
+ (goto-char (point-min))
+ (while data
+ (while (get-text-property (point) 'gnus-intangible)
+ (forward-line 1))
+ (gnus-data-set-pos (car data) (+ (point) 3))
+ (setq data (cdr data))
+ (forward-line 1))))))
+
+(defun gnus-hidden-threads-configuration ()
+ "Return the current hidden threads configuration."
+ (save-excursion
+ (let (config)
+ (goto-char (point-min))
+ (while (not (eobp))
+ (when (eq (get-char-property (point-at-eol) 'invisible) 'gnus-sum)
+ (push (save-excursion (forward-line 0) (point)) config))
+ (forward-line 1))
+ config)))
+
+(defun gnus-restore-hidden-threads-configuration (config)
+ "Restore hidden threads configuration from CONFIG."
+ (save-excursion
+ (let (point (inhibit-read-only t))
+ (while (setq point (pop config))
+ (goto-char point)
+ (gnus-summary-hide-thread)))))
+
+;; 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-set-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.
+ (let ((table (or (copy-sequence standard-display-table)
+ (make-display-table)))
+ (i 32))
+ ;; Nix out all the control chars...
+ (while (>= (setq i (1- i)) 0)
+ (gnus-put-display-table i [??] table))
+ ;; ... but not newline and cr, of course. (cr is necessary for the
+ ;; selective display).
+ (gnus-put-display-table ?\n nil table)
+ (gnus-put-display-table ?\r nil table)
+ ;; We keep TAB as well.
+ (gnus-put-display-table ?\t nil table)
+ ;; We nix out any glyphs 127 through 255, or 127 through 159 in
+ ;; Emacs 23 (unicode), that are not set already.
+ (let ((i (if (ignore-errors (= (make-char 'latin-iso8859-1 160) 160))
+ 160
+ 256)))
+ (while (>= (setq i (1- i)) 127)
+ ;; Only modify if the entry is nil.
+ (unless (gnus-get-display-table i table)
+ (gnus-put-display-table i [??] table))))
+ (setq buffer-display-table table)))
+
+(defun gnus-summary-set-article-display-arrow (pos)
+ "Update the overlay arrow to point to line at position POS."
+ (when gnus-summary-display-arrow
+ (make-local-variable 'overlay-arrow-position)
+ (make-local-variable 'overlay-arrow-string)
+ (save-excursion
+ (goto-char pos)
+ (beginning-of-line)
+ (unless overlay-arrow-position
+ (setq overlay-arrow-position (make-marker)))
+ (setq overlay-arrow-string "=>"
+ overlay-arrow-position (set-marker overlay-arrow-position
+ (point)
+ (current-buffer))))))
+
+(defun gnus-summary-setup-buffer (group)
+ "Initialize summary buffer.
+If the setup was successful, non-nil is returned."
+ (let ((buffer (gnus-summary-buffer-name group))
+ (dead-name (concat "*Dead Summary "
+ (gnus-group-decoded-name group) "*")))
+ ;; If a dead summary buffer exists, we kill it.
+ (when (gnus-buffer-live-p dead-name)
+ (gnus-kill-buffer dead-name))
+ (if (get-buffer buffer)
+ (progn
+ (set-buffer buffer)
+ (setq gnus-summary-buffer (current-buffer))
+ (not gnus-newsgroup-prepared))
+ (set-buffer (gnus-get-buffer-create buffer))
+ (setq gnus-summary-buffer (current-buffer))
+ (gnus-summary-mode group)
+ (when (gnus-group-quit-config group)
+ (set (make-local-variable 'gnus-single-article-buffer) nil))
+ (make-local-variable 'gnus-article-buffer)
+ (make-local-variable 'gnus-article-current)
+ (make-local-variable 'gnus-original-article-buffer)
+ (setq gnus-newsgroup-name group)
+ ;; Set any local variables in the group parameters.
+ (gnus-summary-set-local-parameters gnus-newsgroup-name)
+ t)))
+
+(defun gnus-set-global-variables ()
+ "Set the global equivalents of the buffer-local variables.
+They are set to the latest values they had. These reflect the summary
+buffer that was in action when the last article was fetched."
+ (when (derived-mode-p 'gnus-summary-mode)
+ (setq gnus-summary-buffer (current-buffer))
+ (let ((name gnus-newsgroup-name)
+ (marked gnus-newsgroup-marked)
+ (spam gnus-newsgroup-spam-marked)
+ (unread gnus-newsgroup-unreads)
+ (headers gnus-current-headers)
+ (data gnus-newsgroup-data)
+ (summary gnus-summary-buffer)
+ (article-buffer gnus-article-buffer)
+ (original gnus-original-article-buffer)
+ (gac gnus-article-current)
+ (reffed gnus-reffed-article-number)
+ (score-file gnus-current-score-file)
+ (default-charset gnus-newsgroup-charset)
+ vlist)
+ (let ((locals gnus-newsgroup-variables))
+ (while locals
+ (if (consp (car locals))
+ (push (eval (caar locals)) vlist)
+ (push (eval (car locals)) vlist))
+ (setq locals (cdr locals)))
+ (setq vlist (nreverse vlist)))
+ (with-temp-buffer
+ (setq gnus-newsgroup-name name
+ gnus-newsgroup-marked marked
+ gnus-newsgroup-spam-marked spam
+ gnus-newsgroup-unreads unread
+ gnus-current-headers headers
+ gnus-newsgroup-data data
+ gnus-article-current gac
+ gnus-summary-buffer summary
+ gnus-article-buffer article-buffer
+ gnus-original-article-buffer original
+ gnus-reffed-article-number reffed
+ gnus-current-score-file score-file
+ gnus-newsgroup-charset default-charset)
+ (let ((locals gnus-newsgroup-variables))
+ (while locals
+ (if (consp (car locals))
+ (set (caar locals) (pop vlist))
+ (set (car locals) (pop vlist)))
+ (setq locals (cdr locals))))))))
+
+(defun gnus-summary-article-unread-p (article)
+ "Say whether ARTICLE is unread or not."
+ (memq article gnus-newsgroup-unreads))
+
+(defun gnus-summary-first-article-p (&optional article)
+ "Return whether ARTICLE is the first article in the buffer."
+ (if (not (setq article (or article (gnus-summary-article-number))))
+ nil
+ (eq article (caar gnus-newsgroup-data))))
+
+(defun gnus-summary-last-article-p (&optional article)
+ "Return whether ARTICLE is the last article in the buffer."
+ (if (not (setq article (or article (gnus-summary-article-number))))
+ ;; All non-existent numbers are the last article. :-)
+ t
+ (not (cdr (gnus-data-find-list article)))))
+
+(defun gnus-make-thread-indent-array (&optional n)
+ (when (or n
+ (progn (setq n 200) nil)
+ (null gnus-thread-indent-array)
+ (/= gnus-thread-indent-level gnus-thread-indent-array-level))
+ (setq gnus-thread-indent-array (make-vector (1+ n) "")
+ 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-update-summary-mark-positions ()
+ "Compute where the summary marks are to go."
+ (save-excursion
+ (when (gnus-buffer-exists-p gnus-summary-buffer)
+ (set-buffer gnus-summary-buffer))
+ (let ((spec gnus-summary-line-format-spec)
+ pos)
+ (save-excursion
+ (gnus-set-work-buffer)
+ (let ((gnus-tmp-unread ?Z)
+ (gnus-replied-mark ?Z)
+ (gnus-score-below-mark ?Z)
+ (gnus-score-over-mark ?Z)
+ (gnus-undownloaded-mark ?Z)
+ (gnus-summary-line-format-spec spec)
+ (gnus-newsgroup-downloadable '(0))
+ (header [0 "" "" "05 Apr 2001 23:33:09 +0400" "" "" 0 0 "" nil])
+ case-fold-search ignores)
+ ;; Here, all marks are bound to Z.
+ (gnus-summary-insert-line header
+ 0 nil t gnus-tmp-unread t nil "" nil 1)
+ (goto-char (point-min))
+ ;; Memorize the positions of the same characters as dummy marks.
+ (while (re-search-forward "[A-D]" nil t)
+ (push (point) ignores))
+ (erase-buffer)
+ ;; We use A-D as dummy marks in order to know column positions
+ ;; where marks should be inserted.
+ (setq gnus-tmp-unread ?A
+ gnus-replied-mark ?B
+ gnus-score-below-mark ?C
+ gnus-score-over-mark ?C
+ gnus-undownloaded-mark ?D)
+ (gnus-summary-insert-line header
+ 0 nil t gnus-tmp-unread t nil "" nil 1)
+ ;; Ignore characters which aren't dummy marks.
+ (dolist (p ignores)
+ (delete-region (goto-char (1- p)) p)
+ (insert ?Z))
+ (goto-char (point-min))
+ (setq pos (list (cons 'unread
+ (and (search-forward "A" nil t)
+ (- (point) (point-min) 1)))))
+ (goto-char (point-min))
+ (push (cons 'replied (and (search-forward "B" nil t)
+ (- (point) (point-min) 1)))
+ pos)
+ (goto-char (point-min))
+ (push (cons 'score (and (search-forward "C" nil t)
+ (- (point) (point-min) 1)))
+ pos)
+ (goto-char (point-min))
+ (push (cons 'download (and (search-forward "D" nil t)
+ (- (point) (point-min) 1)))
+ pos)))
+ (setq gnus-summary-mark-positions pos))))
+
+(defun gnus-summary-insert-dummy-line (gnus-tmp-subject gnus-tmp-number)
+ "Insert a dummy root in the summary buffer."
+ (beginning-of-line)
+ (gnus-add-text-properties
+ (point) (progn (eval gnus-summary-dummy-line-format-spec) (point))
+ (list 'gnus-number gnus-tmp-number 'gnus-intangible gnus-tmp-number)))
+
+(defun gnus-summary-extract-address-component (from)
+ (or (car (funcall gnus-extract-address-components from))
+ from))
+
+(defun gnus-summary-from-or-to-or-newsgroups (header gnus-tmp-from)
+ (let ((mail-parse-charset gnus-newsgroup-charset)
+ (ignored-from-addresses (gnus-ignored-from-addresses))
+ ;; Is it really necessary to do this next part for each summary line?
+ ;; Luckily, doesn't seem to slow things down much.
+ (mail-parse-ignored-charsets
+ (with-current-buffer gnus-summary-buffer
+ gnus-newsgroup-ignored-charsets)))
+ (or
+ (and ignored-from-addresses
+ (string-match ignored-from-addresses gnus-tmp-from)
+ (let ((extra-headers (mail-header-extra header))
+ to
+ newsgroups)
+ (cond
+ ((setq to (cdr (assq 'To extra-headers)))
+ (concat gnus-summary-to-prefix
+ (inline
+ (gnus-summary-extract-address-component
+ (funcall gnus-decode-encoded-address-function to)))))
+ ((setq newsgroups
+ (or
+ (cdr (assq 'Newsgroups extra-headers))
+ (and
+ (memq 'Newsgroups gnus-extra-headers)
+ (eq (car (gnus-find-method-for-group
+ gnus-newsgroup-name)) 'nntp)
+ (gnus-group-real-name gnus-newsgroup-name))))
+ (concat gnus-summary-newsgroup-prefix newsgroups)))))
+ (gnus-string-mark-left-to-right
+ (inline
+ (gnus-summary-extract-address-component gnus-tmp-from))))))
+
+(defun gnus-summary-insert-line (gnus-tmp-header
+ gnus-tmp-level gnus-tmp-current
+ undownloaded gnus-tmp-unread gnus-tmp-replied
+ gnus-tmp-expirable gnus-tmp-subject-or-nil
+ &optional gnus-tmp-dummy gnus-tmp-score
+ gnus-tmp-process)
+ (if (>= gnus-tmp-level (length gnus-thread-indent-array))
+ (gnus-make-thread-indent-array (max (* 2 (length gnus-thread-indent-array))
+ gnus-tmp-level)))
+ (let* ((gnus-tmp-indentation (aref gnus-thread-indent-array gnus-tmp-level))
+ (gnus-tmp-lines (mail-header-lines gnus-tmp-header))
+ (gnus-tmp-score (or gnus-tmp-score gnus-summary-default-score 0))
+ (gnus-tmp-score-char
+ (if (or (null gnus-summary-default-score)
+ (<= (abs (- gnus-tmp-score gnus-summary-default-score))
+ gnus-summary-zcore-fuzz))
+ ? ;Whitespace
+ (if (< gnus-tmp-score gnus-summary-default-score)
+ gnus-score-below-mark gnus-score-over-mark)))
+ (gnus-tmp-number (mail-header-number gnus-tmp-header))
+ (gnus-tmp-replied
+ (cond (gnus-tmp-process gnus-process-mark)
+ ((memq gnus-tmp-current gnus-newsgroup-cached)
+ gnus-cached-mark)
+ (gnus-tmp-replied gnus-replied-mark)
+ ((memq gnus-tmp-current gnus-newsgroup-forwarded)
+ gnus-forwarded-mark)
+ ((memq gnus-tmp-current gnus-newsgroup-saved)
+ gnus-saved-mark)
+ ((memq gnus-tmp-number gnus-newsgroup-unseen)
+ gnus-unseen-mark)
+ (t gnus-no-mark)))
+ (gnus-tmp-downloaded
+ (cond (undownloaded
+ gnus-undownloaded-mark)
+ (gnus-newsgroup-agentized
+ gnus-downloaded-mark)
+ (t
+ gnus-no-mark)))
+ (gnus-tmp-from (mail-header-from gnus-tmp-header))
+ (gnus-tmp-name
+ (cond
+ ((string-match "<[^>]+> *$" gnus-tmp-from)
+ (let ((beg (match-beginning 0)))
+ (or (and (string-match "^\".+\"" gnus-tmp-from)
+ (substring gnus-tmp-from 1 (1- (match-end 0))))
+ (substring gnus-tmp-from 0 beg))))
+ ((string-match "(.+)" gnus-tmp-from)
+ (substring gnus-tmp-from
+ (1+ (match-beginning 0)) (1- (match-end 0))))
+ (t gnus-tmp-from)))
+ (gnus-tmp-subject (mail-header-subject gnus-tmp-header))
+ (gnus-tmp-opening-bracket (if gnus-tmp-dummy ?\< ?\[))
+ (gnus-tmp-closing-bracket (if gnus-tmp-dummy ?\> ?\]))
+ (inhibit-read-only t))
+ (when (string= gnus-tmp-name "")
+ (setq gnus-tmp-name gnus-tmp-from))
+ (unless (numberp gnus-tmp-lines)
+ (setq gnus-tmp-lines -1))
+ (if (= gnus-tmp-lines -1)
+ (setq gnus-tmp-lines "?")
+ (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
+ (condition-case ()
+ (gnus-put-text-property
+ (point)
+ (progn (eval gnus-summary-line-format-spec) (point))
+ 'gnus-number gnus-tmp-number)
+ (error (gnus-message 5 "Error updating the summary line")))
+ (when (gnus-visual-p 'summary-highlight 'highlight)
+ (forward-line -1)
+ (gnus-summary-highlight-line)
+ (gnus-run-hooks 'gnus-summary-update-hook)
+ (forward-line 1))))
+
+(defun gnus-summary-update-line (&optional dont-update)
+ "Update summary line after change."
+ (when (and gnus-summary-default-score
+ (not gnus-summary-inhibit-highlight))
+ (let* ((gnus-summary-inhibit-highlight t) ; Prevent recursion.
+ (article (gnus-summary-article-number))
+ (score (gnus-summary-article-score article)))
+ (unless dont-update
+ (if (and gnus-summary-mark-below
+ (< (gnus-summary-article-score)
+ gnus-summary-mark-below))
+ ;; This article has a low score, so we mark it as read.
+ (when (memq article gnus-newsgroup-unreads)
+ (gnus-summary-mark-article-as-read gnus-low-score-mark))
+ (when (eq (gnus-summary-article-mark) gnus-low-score-mark)
+ ;; This article was previously marked as read on account
+ ;; of a low score, but now it has risen, so we mark it as
+ ;; unread.
+ (gnus-summary-mark-article-as-unread gnus-unread-mark)))
+ (gnus-summary-update-mark
+ (if (or (null gnus-summary-default-score)
+ (<= (abs (- score gnus-summary-default-score))
+ gnus-summary-zcore-fuzz))
+ ? ;Whitespace
+ (if (< score gnus-summary-default-score)
+ gnus-score-below-mark gnus-score-over-mark))
+ 'score))
+ ;; Do visual highlighting.
+ (when (gnus-visual-p 'summary-highlight 'highlight)
+ (gnus-summary-highlight-line)
+ (gnus-run-hooks 'gnus-summary-update-hook)))))
+
+(defvar gnus-tmp-new-adopts nil)
+
+(defun gnus-summary-number-of-articles-in-thread (thread &optional level char)
+ "Return the number of articles in THREAD.
+This may be 0 in some cases -- if none of the articles in
+the thread are to be displayed."
+ (let* ((number
+ ;; Fix by Luc Van Eycken <Luc.VanEycken@esat.kuleuven.ac.be>.
+ (cond
+ ((not (listp thread))
+ 1)
+ ((and (consp thread) (cdr thread))
+ (apply
+ '+ 1 (mapcar
+ 'gnus-summary-number-of-articles-in-thread (cdr thread))))
+ ((null thread)
+ 1)
+ ((memq (mail-header-number (car thread)) gnus-newsgroup-limit)
+ 1)
+ (t 0))))
+ (when (and level (zerop level) gnus-tmp-new-adopts)
+ (incf number
+ (apply '+ (mapcar
+ 'gnus-summary-number-of-articles-in-thread
+ gnus-tmp-new-adopts))))
+ (if char
+ (if (> number 1) gnus-not-empty-thread-mark
+ gnus-empty-thread-mark)
+ number)))
+
+(defsubst gnus-summary-line-message-size (head)
+ "Return pretty-printed version of message size.
+This function is intended to be used in
+`gnus-summary-line-format-alist'."
+ (let ((c (or (mail-header-chars head) -1)))
+ (cond ((< c 0) "n/a") ; chars not available
+ ((< c (* 1000 10)) (format "%1.1fk" (/ c 1024.0)))
+ ((< c (* 1000 100)) (format "%dk" (/ c 1024.0)))
+ ((< c (* 1000 10000)) (format "%1.1fM" (/ c (* 1024.0 1024))))
+ (t (format "%dM" (/ c (* 1024.0 1024)))))))
+
+(defcustom gnus-user-date-format-alist
+ '(((gnus-seconds-today) . "Today, %H:%M")
+ ((+ 86400 (gnus-seconds-today)) . "Yesterday, %H:%M")
+ (604800 . "%A %H:%M") ; That's one week
+ ((gnus-seconds-month) . "%A %d")
+ ((gnus-seconds-year) . "%B %d")
+ (t . "%b %d %Y")) ; This one is used when no other
+ ; does match
+ "Specifies date format depending on age of article.
+This is an alist of items (AGE . FORMAT). AGE can be a number (of
+seconds) or a Lisp expression evaluating to a number. When the age of
+the article is less than this number, then use `format-time-string'
+with the corresponding FORMAT for displaying the date of the article.
+If AGE is not a number or a Lisp expression evaluating to a
+non-number, then the corresponding FORMAT is used as a default value.
+
+Note that the list is processed from the beginning, so it should be
+sorted by ascending AGE. Also note that items following the first
+non-number AGE will be ignored.
+
+You can use the functions `gnus-seconds-today', `gnus-seconds-month'
+and `gnus-seconds-year' in the AGE spec. They return the number of
+seconds passed since the start of today, of this month, of this year,
+respectively."
+ :version "24.1"
+ :group 'gnus-summary-format
+ :type '(alist :key-type sexp :value-type string))
+
+(defun gnus-user-date (messy-date)
+ "Format the messy-date according to `gnus-user-date-format-alist'.
+Returns \" ? \" if there's bad input or if another error occurs.
+Input should look like this: \"Sun, 14 Oct 2001 13:34:39 +0200\"."
+ (condition-case ()
+ (let* ((messy-date (gnus-float-time (gnus-date-get-time messy-date)))
+ (now (gnus-float-time))
+ ;;If we don't find something suitable we'll use this one
+ (my-format "%b %d '%y"))
+ (let* ((difference (- now messy-date))
+ (templist gnus-user-date-format-alist)
+ (top (eval (caar templist))))
+ (while (if (numberp top) (< top difference) (not top))
+ (progn
+ (setq templist (cdr templist))
+ (setq top (eval (caar templist)))))
+ (if (stringp (cdr (car templist)))
+ (setq my-format (cdr (car templist)))))
+ (format-time-string (eval my-format) (seconds-to-time messy-date)))
+ (error " ? ")))
+
+(defun gnus-summary-set-local-parameters (group)
+ "Go through the local params of GROUP and set all variable specs in that list."
+ (let ((vars '(quit-config active))) ; Ignore things that aren't
+ ; really variables.
+ (dolist (elem (gnus-group-find-parameter group))
+ (and (consp elem) ; Has to be a cons.
+ (consp (cdr elem)) ; The cdr has to be a list.
+ (symbolp (car elem)) ; Has to be a symbol in there.
+ (not (memq (car elem) vars))
+ (ignore-errors
+ (push (car elem) vars)
+ ;; Variables like `gnus-show-threads' that are globally
+ ;; bound, if used as group parameters, need to get to be
+ ;; buffer-local, whereas just parameters like `gcc-self',
+ ;; `timestamp', etc. should not be bound as variables.
+ (if (boundp (car elem))
+ (set (make-local-variable (car elem)) (eval (nth 1 elem)))
+ (eval (nth 1 elem))))))))
+
+(defun gnus-summary-read-group (group &optional show-all no-article
+ kill-buffer no-display backward
+ select-articles)
+ "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.
+If NO-DISPLAY, don't generate the summary buffer contents.
+If KILL-BUFFER, it should be a buffer that's killed once the new
+summary buffer has been generated.
+If BACKWARD, move point to the previous group in the group buffer
+If SELECT-ARTICLES, only select those articles from GROUP."
+ (let (result)
+ (while (and group
+ (null (setq result
+ (let ((gnus-auto-select-next nil))
+ (or (gnus-summary-read-group-1
+ group show-all no-article
+ kill-buffer no-display
+ select-articles)
+ (setq show-all nil
+ select-articles nil)))))
+ (eq gnus-auto-select-next 'quietly))
+ (set-buffer gnus-group-buffer)
+ ;; The entry function called above goes to the next
+ ;; group automatically, so we go two groups back
+ ;; if we are searching for the previous group.
+ (when backward
+ (gnus-group-prev-unread-group 2))
+ (if (not (equal group (gnus-group-group-name)))
+ (setq group (gnus-group-group-name))
+ (setq group nil)))
+ result))
+
+(defun gnus-summary-read-group-1 (group show-all no-article
+ kill-buffer no-display
+ &optional select-articles)
+ ;; Killed foreign groups can't be entered.
+ ;; (when (and (not (gnus-group-native-p group))
+ ;; (not (gnus-gethash group gnus-newsrc-hashtb)))
+ ;; (error "Dead non-native groups can't be entered"))
+ (gnus-message 7 "Retrieving newsgroup: %s..."
+ (gnus-group-decoded-name 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 select-articles))))
+ (cond
+ ;; This summary buffer exists already, so we just select it.
+ ((not new-group)
+ (gnus-set-global-variables)
+ (when kill-buffer
+ (gnus-kill-or-deaden-summary kill-buffer))
+ (gnus-configure-windows 'summary 'force)
+ (gnus-set-mode-line 'summary)
+ (gnus-summary-position-point)
+ (message "")
+ t)
+ ;; We couldn't select this group.
+ ((null did-select)
+ (when (and (derived-mode-p 'gnus-summary-mode)
+ (not (equal (current-buffer) kill-buffer)))
+ (kill-buffer (current-buffer))
+ (if (not quit-config)
+ (progn
+ ;; Update the info -- marks might need to be removed,
+ ;; for instance.
+ (gnus-summary-update-info)
+ (set-buffer gnus-group-buffer)
+ (gnus-group-jump-to-group group)
+ (gnus-group-next-unread-group 1))
+ (gnus-handle-ephemeral-exit quit-config)))
+ (if (null (gnus-list-of-unread-articles group))
+ (gnus-message 3 "Group %s contains no messages" group)
+ (gnus-message 3 "Can't select group"))
+ nil)
+ ;; The user did a `C-g' while prompting for number of articles,
+ ;; so we exit this group.
+ ((eq did-select 'quit)
+ (and (derived-mode-p 'gnus-summary-mode)
+ (not (equal (current-buffer) kill-buffer))
+ (kill-buffer (current-buffer)))
+ (when kill-buffer
+ (gnus-kill-or-deaden-summary kill-buffer))
+ (if (not quit-config)
+ (progn
+ (set-buffer gnus-group-buffer)
+ (gnus-group-jump-to-group group)
+ (gnus-configure-windows 'group 'force))
+ (gnus-handle-ephemeral-exit quit-config))
+ ;; Finally signal the quit.
+ (signal 'quit nil))
+ ;; The group was successfully selected.
+ (t
+ (gnus-set-global-variables)
+ (when (boundp 'spam-install-hooks)
+ (spam-initialize))
+ ;; Save the active value in effect when the group was entered.
+ (setq gnus-newsgroup-active
+ (gnus-copy-sequence
+ (gnus-active gnus-newsgroup-name)))
+ (setq gnus-newsgroup-highest (cdr gnus-newsgroup-active))
+ ;; You can change the summary buffer in some way with this hook.
+ (gnus-run-hooks 'gnus-select-group-hook)
+ (when (memq 'summary (gnus-update-format-specifications
+ nil 'summary 'summary-mode 'summary-dummy))
+ ;; The format specification for the summary line was updated,
+ ;; so we need to update the mark positions as well.
+ (gnus-update-summary-mark-positions))
+ ;; Do score processing.
+ (when gnus-use-scoring
+ (gnus-possibly-score-headers))
+ ;; Check whether to fill in the gaps in the threads.
+ (when gnus-build-sparse-threads
+ (gnus-build-sparse-threads))
+ ;; Find the initial limit.
+ (if show-all
+ (let ((gnus-newsgroup-dormant nil))
+ (gnus-summary-initial-limit show-all))
+ (gnus-summary-initial-limit show-all))
+ ;; Generate the summary buffer.
+ (unless no-display
+ (gnus-summary-prepare))
+ (when gnus-use-trees
+ (gnus-tree-open)
+ (setq gnus-summary-highlight-line-function
+ 'gnus-tree-highlight-article))
+ ;; If the summary buffer is empty, but there are some low-scored
+ ;; articles or some excluded dormants, we include these in the
+ ;; buffer.
+ (when (and (zerop (buffer-size))
+ (not no-display))
+ (cond (gnus-newsgroup-dormant
+ (gnus-summary-limit-include-dormant))
+ ((and gnus-newsgroup-scored show-all)
+ (gnus-summary-limit-include-expunged t))))
+ ;; Function `gnus-apply-kill-file' must be called in this hook.
+ (gnus-run-hooks 'gnus-apply-kill-hook)
+ (if (and (zerop (buffer-size))
+ (not no-display))
+ (progn
+ ;; This newsgroup is empty.
+ (gnus-summary-catchup-and-exit nil t)
+ (gnus-message 6 "No unread news")
+ (when kill-buffer
+ (gnus-kill-or-deaden-summary kill-buffer))
+ ;; Return nil from this function.
+ nil)
+ ;; Hide conversation thread subtrees. We cannot do this in
+ ;; gnus-summary-prepare-hook since kill processing may not
+ ;; work with hidden articles.
+ (gnus-summary-maybe-hide-threads)
+ (gnus-configure-windows 'summary)
+ (when kill-buffer
+ (gnus-kill-or-deaden-summary kill-buffer))
+ (gnus-summary-auto-select-subject)
+ ;; Show first unread article if requested.
+ (if (and (not no-article)
+ (not no-display)
+ gnus-newsgroup-unreads
+ gnus-auto-select-first)
+ (progn
+ (let ((art (gnus-summary-article-number)))
+ (when (and art
+ gnus-plugged
+ (not (memq art gnus-newsgroup-undownloaded))
+ (not (memq art gnus-newsgroup-downloadable)))
+ (gnus-summary-goto-article art))))
+ ;; Don't select any articles.
+ (gnus-summary-position-point)
+ (gnus-configure-windows 'summary 'force)
+ (gnus-set-mode-line 'summary))
+ (when (and gnus-auto-center-group
+ (get-buffer-window gnus-group-buffer t))
+ ;; 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 t))
+ (when (gnus-group-goto-group group)
+ (recenter))
+ (select-window owin)))
+ ;; Mark this buffer as "prepared".
+ (setq gnus-newsgroup-prepared t)
+ (gnus-run-hooks 'gnus-summary-prepared-hook)
+ (unless (gnus-ephemeral-group-p group)
+ (gnus-group-update-group group nil t))
+ t)))))
+
+(defun gnus-summary-auto-select-subject ()
+ "Select the subject line on initial group entry."
+ (goto-char (point-min))
+ (cond
+ ((eq gnus-auto-select-subject 'best)
+ (gnus-summary-best-unread-subject))
+ ((eq gnus-auto-select-subject 'unread)
+ (gnus-summary-first-unread-subject))
+ ((eq gnus-auto-select-subject 'unseen)
+ (gnus-summary-first-unseen-subject))
+ ((eq gnus-auto-select-subject 'unseen-or-unread)
+ (gnus-summary-first-unseen-or-unread-subject))
+ ((eq gnus-auto-select-subject 'first)
+ ;; Do nothing.
+ )
+ ((functionp gnus-auto-select-subject)
+ (funcall gnus-auto-select-subject))))
+
+(defun gnus-summary-prepare ()
+ "Generate the summary buffer."
+ (interactive)
+ (let ((inhibit-read-only t))
+ (erase-buffer)
+ (setq gnus-newsgroup-data nil
+ gnus-newsgroup-data-reverse nil)
+ (gnus-run-hooks 'gnus-summary-generate-hook)
+ ;; Generate the buffer, either with threads or without.
+ (when gnus-newsgroup-headers
+ (gnus-summary-prepare-threads
+ (if gnus-show-threads
+ (gnus-sort-gathered-threads
+ (funcall gnus-summary-thread-gathering-function
+ (gnus-sort-threads
+ (gnus-cut-threads (gnus-make-threads)))))
+ ;; Unthreaded display.
+ (gnus-sort-articles gnus-newsgroup-headers))))
+ (setq gnus-newsgroup-data (nreverse gnus-newsgroup-data))
+ ;; Call hooks for modifying summary buffer.
+ (goto-char (point-min))
+ (gnus-run-hooks 'gnus-summary-prepare-hook)))
+
+(defsubst gnus-general-simplify-subject (subject)
+ "Simplify subject by the same rules as `gnus-gather-threads-by-subject'."
+ (setq subject
+ (cond
+ ;; Truncate the subject.
+ (gnus-simplify-subject-functions
+ (gnus-map-function gnus-simplify-subject-functions subject))
+ ((numberp gnus-summary-gather-subject-limit)
+ (setq subject (gnus-simplify-subject-re subject))
+ (if (> (length subject) gnus-summary-gather-subject-limit)
+ (substring subject 0 gnus-summary-gather-subject-limit)
+ subject))
+ ;; Fuzzily simplify it.
+ ((eq 'fuzzy gnus-summary-gather-subject-limit)
+ (gnus-simplify-subject-fuzzy subject))
+ ;; Just remove the leading "Re:".
+ (t
+ (gnus-simplify-subject-re subject))))
+
+ (if (and gnus-summary-gather-exclude-subject
+ (string-match gnus-summary-gather-exclude-subject subject))
+ nil ; This article shouldn't be gathered
+ subject))
+
+(defun gnus-summary-simplify-subject-query ()
+ "Query where the respool algorithm would put this article."
+ (interactive)
+ (gnus-summary-select-article)
+ (message "%s" (gnus-general-simplify-subject (gnus-summary-article-subject))))
+
+(defun gnus-gather-threads-by-subject (threads)
+ "Gather threads by looking at Subject headers."
+ (if (not gnus-summary-make-false-root)
+ threads
+ (let ((hashtb (gnus-make-hashtable 1024))
+ (prev threads)
+ (result threads)
+ subject hthread whole-subject)
+ (while threads
+ (setq subject (gnus-general-simplify-subject
+ (setq whole-subject (mail-header-subject
+ (caar threads)))))
+ (when subject
+ (if (setq hthread (gnus-gethash subject hashtb))
+ (progn
+ ;; We enter a dummy root into the thread, if we
+ ;; haven't done that already.
+ (unless (stringp (caar hthread))
+ (setcar hthread (list whole-subject (car hthread))))
+ ;; We add this new gathered thread to this gathered
+ ;; thread.
+ (setcdr (car hthread)
+ (nconc (cdar hthread) (list (car threads))))
+ ;; Remove it from the list of threads.
+ (setcdr prev (cdr threads))
+ (setq threads prev))
+ ;; Enter this thread into the hash table.
+ (gnus-sethash subject
+ (if gnus-summary-make-false-root-always
+ (progn
+ ;; If you want a dummy root above all
+ ;; threads...
+ (setcar threads (list whole-subject
+ (car threads)))
+ threads)
+ threads)
+ hashtb)))
+ (setq prev threads)
+ (setq threads (cdr threads)))
+ result)))
+
+(defun gnus-gather-threads-by-references (threads)
+ "Gather threads by looking at References headers."
+ (let ((idhashtb (gnus-make-hashtable 1024))
+ (thhashtb (gnus-make-hashtable 1024))
+ (prev threads)
+ (result threads)
+ ids references id gthread gid entered ref)
+ (while threads
+ (when (setq references (mail-header-references (caar threads)))
+ (setq id (mail-header-id (caar threads))
+ ids (inline (gnus-split-references references))
+ entered nil)
+ (while (setq ref (pop ids))
+ (setq ids (delete ref ids))
+ (if (not (setq gid (gnus-gethash ref idhashtb)))
+ (progn
+ (gnus-sethash ref id idhashtb)
+ (gnus-sethash id threads thhashtb))
+ (setq gthread (gnus-gethash gid thhashtb))
+ (unless entered
+ ;; We enter a dummy root into the thread, if we
+ ;; haven't done that already.
+ (unless (stringp (caar gthread))
+ (setcar gthread (list (mail-header-subject (caar gthread))
+ (car gthread))))
+ ;; We add this new gathered thread to this gathered
+ ;; thread.
+ (setcdr (car gthread)
+ (nconc (cdar gthread) (list (car threads)))))
+ ;; Add it into the thread hash table.
+ (gnus-sethash id gthread thhashtb)
+ (setq entered t)
+ ;; Remove it from the list of threads.
+ (setcdr prev (cdr threads))
+ (setq threads prev))))
+ (setq prev threads)
+ (setq threads (cdr threads)))
+ result))
+
+(defun gnus-sort-gathered-threads (threads)
+ "Sort subthreads inside each gathered thread by `gnus-sort-gathered-threads-function'."
+ (let ((result threads))
+ (while threads
+ (when (stringp (caar threads))
+ (setcdr (car threads)
+ (sort (cdar threads) gnus-sort-gathered-threads-function)))
+ (setq threads (cdr threads)))
+ result))
+
+(defun gnus-thread-loop-p (root thread)
+ "Say whether ROOT is in THREAD."
+ (let ((stack (list thread))
+ (infloop 0)
+ th)
+ (while (setq thread (pop stack))
+ (setq th (cdr thread))
+ (while (and th
+ (not (eq (caar th) root)))
+ (pop th))
+ (if th
+ ;; We have found a loop.
+ (let (ref-dep)
+ (setcdr thread (delq (car th) (cdr thread)))
+ (if (boundp (setq ref-dep (intern "none"
+ gnus-newsgroup-dependencies)))
+ (setcdr (symbol-value ref-dep)
+ (nconc (cdr (symbol-value ref-dep))
+ (list (car th))))
+ (set ref-dep (list nil (car th))))
+ (setq infloop 1
+ stack nil))
+ ;; Push all the subthreads onto the stack.
+ (push (cdr thread) stack)))
+ infloop))
+
+(defun gnus-make-threads ()
+ "Go through the dependency hashtb and find the roots. Return all threads."
+ (let (threads)
+ (while (catch 'infloop
+ (mapatoms
+ (lambda (refs)
+ ;; Deal with self-referencing References loops.
+ (when (and (car (symbol-value refs))
+ (not (zerop
+ (apply
+ '+
+ (mapcar
+ (lambda (thread)
+ (gnus-thread-loop-p
+ (car (symbol-value refs)) thread))
+ (cdr (symbol-value refs)))))))
+ (setq threads nil)
+ (throw 'infloop t))
+ (unless (car (symbol-value refs))
+ ;; These threads do not refer back to any other
+ ;; articles, so they're roots.
+ (setq threads (append (cdr (symbol-value refs)) threads))))
+ gnus-newsgroup-dependencies)))
+ threads))
+
+;; Build the thread tree.
+(defsubst gnus-dependencies-add-header (header dependencies force-new)
+ "Enter HEADER into the DEPENDENCIES table if it is not already there.
+
+If FORCE-NEW is not nil, enter HEADER into the DEPENDENCIES table even
+if it was already present.
+
+If `gnus-summary-ignore-duplicates' is nil then duplicate Message-IDs
+will not be entered in the DEPENDENCIES table. Otherwise duplicate
+Message-IDs will be renamed to a unique Message-ID before being
+entered.
+
+Returns HEADER if it was entered in the DEPENDENCIES. Returns nil otherwise."
+ (let* ((id (mail-header-id header))
+ (id-dep (and id (intern id dependencies)))
+ parent-id ref ref-dep ref-header replaced)
+ ;; Enter this `header' in the `dependencies' table.
+ (cond
+ ((not id-dep)
+ (setq header nil))
+ ;; The first two cases do the normal part: enter a new `header'
+ ;; in the `dependencies' table.
+ ((not (boundp id-dep))
+ (set id-dep (list header)))
+ ((null (car (symbol-value id-dep)))
+ (setcar (symbol-value id-dep) header))
+
+ ;; From here the `header' was already present in the
+ ;; `dependencies' table.
+ (force-new
+ ;; Overrides an existing entry;
+ ;; just set the header part of the entry.
+ (setcar (symbol-value id-dep) header)
+ (setq replaced t))
+
+ ;; Renames the existing `header' to a unique Message-ID.
+ ((not gnus-summary-ignore-duplicates)
+ ;; An article with this Message-ID has already been seen.
+ ;; We rename the Message-ID.
+ (set (setq id-dep (intern (setq id (nnmail-message-id)) dependencies))
+ (list header))
+ (mail-header-set-id header id))
+
+ ;; The last case ignores an existing entry, except it adds any
+ ;; additional Xrefs (in case the two articles came from different
+ ;; servers.
+ ;; Also sets `header' to nil meaning that the `dependencies'
+ ;; table was *not* modified.
+ (t
+ (mail-header-set-xref
+ (car (symbol-value id-dep))
+ (concat (or (mail-header-xref (car (symbol-value id-dep)))
+ "")
+ (or (mail-header-xref header) "")))
+ (setq header nil)))
+
+ (when (and header (not replaced))
+ ;; First check that we are not creating a References loop.
+ (setq parent-id (gnus-parent-id (mail-header-references header)))
+ (setq ref parent-id)
+ (while (and ref
+ (setq ref-dep (intern-soft ref dependencies))
+ (boundp ref-dep)
+ (setq ref-header (car (symbol-value ref-dep))))
+ (if (string= id ref)
+ ;; Yuk! This is a reference loop. Make the article be a
+ ;; root article.
+ (progn
+ (mail-header-set-references (car (symbol-value id-dep)) "none")
+ (setq ref nil)
+ (setq parent-id nil))
+ (setq ref (gnus-parent-id (mail-header-references ref-header)))))
+ (setq ref-dep (intern (or parent-id "none") dependencies))
+ (if (boundp ref-dep)
+ (setcdr (symbol-value ref-dep)
+ (nconc (cdr (symbol-value ref-dep))
+ (list (symbol-value id-dep))))
+ (set ref-dep (list nil (symbol-value id-dep)))))
+ header))
+
+(defun gnus-extract-message-id-from-in-reply-to (string)
+ (if (string-match "<[^>]+>" string)
+ (substring string (match-beginning 0) (match-end 0))
+ nil))
+
+(defun gnus-build-sparse-threads ()
+ (let ((headers gnus-newsgroup-headers)
+ (mail-parse-charset gnus-newsgroup-charset)
+ (gnus-summary-ignore-duplicates t)
+ header references generation relations
+ subject child end new-child date)
+ ;; First we create an alist of generations/relations, where
+ ;; generations is how much we trust the relation, and the relation
+ ;; is parent/child.
+ (gnus-message 7 "Making sparse threads...")
+ (save-excursion
+ (nnheader-set-temp-buffer " *gnus sparse threads*")
+ (while (setq header (pop headers))
+ (when (and (setq references (mail-header-references header))
+ (not (string= references "")))
+ (insert references)
+ (setq child (mail-header-id header)
+ subject (mail-header-subject header)
+ date (mail-header-date header)
+ generation 0)
+ (while (search-backward ">" nil t)
+ (setq end (1+ (point)))
+ (when (search-backward "<" nil t)
+ (setq new-child (buffer-substring (point) end))
+ (push (list (incf generation)
+ child (setq child new-child)
+ subject date)
+ relations)))
+ (when child
+ (push (list (1+ generation) child nil subject) relations))
+ (erase-buffer)))
+ (kill-buffer (current-buffer)))
+ ;; Sort over trustworthiness.
+ (dolist (relation (sort relations 'car-less-than-car))
+ (when (gnus-dependencies-add-header
+ (make-full-mail-header
+ gnus-reffed-article-number
+ (nth 3 relation) "" (or (nth 4 relation) "")
+ (nth 1 relation)
+ (or (nth 2 relation) "") 0 0 "")
+ gnus-newsgroup-dependencies nil)
+ (push gnus-reffed-article-number gnus-newsgroup-limit)
+ (push gnus-reffed-article-number gnus-newsgroup-sparse)
+ (push (cons gnus-reffed-article-number gnus-sparse-mark)
+ gnus-newsgroup-reads)
+ (decf gnus-reffed-article-number)))
+ (gnus-message 7 "Making sparse threads...done")))
+
+(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 ((mail-parse-charset gnus-newsgroup-charset)
+ id heads)
+ (mapatoms
+ (lambda (refs)
+ (when (not (car (symbol-value refs)))
+ (setq heads (cdr (symbol-value refs)))
+ (while heads
+ (if (memq (mail-header-number (caar heads))
+ gnus-newsgroup-dormant)
+ (setq heads (cdr heads))
+ (setq id (symbol-name refs))
+ (while (and (setq id (gnus-build-get-header id))
+ (not (car (gnus-id-to-thread id)))))
+ (setq heads nil)))))
+ gnus-newsgroup-dependencies)))
+
+(defsubst gnus-remove-odd-characters (string)
+ "Translate STRING into something that doesn't contain weird characters."
+ (mm-subst-char-in-string
+ ?\r ?\-
+ (mm-subst-char-in-string ?\n ?\- string t) t))
+
+;; This function has to be called with point after the article number
+;; on the beginning of the line.
+(defsubst gnus-nov-parse-line (number dependencies &optional force-new)
+ (let ((eol (point-at-eol))
+ (buffer (current-buffer))
+ header references in-reply-to)
+
+ ;; overview: [num subject from date id refs chars lines misc]
+ (unwind-protect
+ (let (x)
+ (narrow-to-region (point) eol)
+ (unless (eobp)
+ (forward-char))
+
+ (setq header
+ (make-full-mail-header
+ number ; number
+ (condition-case () ; subject
+ (gnus-remove-odd-characters
+ (funcall gnus-decode-encoded-word-function
+ (setq x (nnheader-nov-field))))
+ (error x))
+ (condition-case () ; from
+ (gnus-remove-odd-characters
+ (funcall gnus-decode-encoded-address-function
+ (setq x (nnheader-nov-field))))
+ (error x))
+ (nnheader-nov-field) ; date
+ (nnheader-nov-read-message-id number) ; id
+ (setq references (nnheader-nov-field)) ; refs
+ (nnheader-nov-read-integer) ; chars
+ (nnheader-nov-read-integer) ; lines
+ (unless (eobp)
+ (if (looking-at "Xref: ")
+ (goto-char (match-end 0)))
+ (nnheader-nov-field)) ; Xref
+ (nnheader-nov-parse-extra)))) ; extra
+
+ (widen))
+
+ (when (and (string= references "")
+ (setq in-reply-to (mail-header-extra header))
+ (setq in-reply-to (cdr (assq 'In-Reply-To in-reply-to))))
+ (mail-header-set-references
+ header (gnus-extract-message-id-from-in-reply-to in-reply-to)))
+
+ (when gnus-alter-header-function
+ (funcall gnus-alter-header-function header))
+ (gnus-dependencies-add-header header dependencies force-new)))
+
+(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
+ (with-current-buffer nntp-server-buffer
+ (let ((case-fold-search nil))
+ (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)))
+ (when found
+ (beginning-of-line)
+ (and
+ (setq header (gnus-nov-parse-line
+ (read (current-buffer)) deps))
+ (gnus-parent-id (mail-header-references header))))))
+ (when header
+ (let ((number (mail-header-number header)))
+ (push number gnus-newsgroup-limit)
+ (push header gnus-newsgroup-headers)
+ (if (memq number gnus-newsgroup-unselected)
+ (progn
+ (setq gnus-newsgroup-unreads
+ (gnus-add-to-sorted-list gnus-newsgroup-unreads
+ number))
+ (setq gnus-newsgroup-unselected
+ (delq number gnus-newsgroup-unselected)))
+ (push number gnus-newsgroup-ancient)))))))
+
+(defun gnus-build-all-threads ()
+ "Read all the headers."
+ (let ((gnus-summary-ignore-duplicates t)
+ (mail-parse-charset gnus-newsgroup-charset)
+ (dependencies gnus-newsgroup-dependencies)
+ header article)
+ (with-current-buffer nntp-server-buffer
+ (let ((case-fold-search nil))
+ (goto-char (point-min))
+ (while (not (eobp))
+ (ignore-errors
+ (setq article (read (current-buffer))
+ header (gnus-nov-parse-line article dependencies t)))
+ (when header
+ (with-current-buffer gnus-summary-buffer
+ (push header gnus-newsgroup-headers)
+ (if (memq (setq article (mail-header-number header))
+ gnus-newsgroup-unselected)
+ (progn
+ (setq gnus-newsgroup-unreads
+ (gnus-add-to-sorted-list
+ gnus-newsgroup-unreads article))
+ (setq gnus-newsgroup-unselected
+ (delq article gnus-newsgroup-unselected)))
+ (push article gnus-newsgroup-ancient)))
+ (forward-line 1)))))))
+
+(defun gnus-summary-update-article-line (article header)
+ "Update the line for ARTICLE using HEADER."
+ (let* ((id (mail-header-id header))
+ (thread (gnus-id-to-thread id)))
+ (unless thread
+ (error "Article in no thread"))
+ ;; Update the thread.
+ (setcar thread header)
+ (gnus-summary-goto-subject article)
+ (let* ((datal (gnus-data-find-list article))
+ (data (car datal))
+ (inhibit-read-only t)
+ (level (gnus-summary-thread-level)))
+ (gnus-delete-line)
+ (let ((inserted (- (point)
+ (progn
+ (gnus-summary-insert-line
+ header level nil
+ (memq article gnus-newsgroup-undownloaded)
+ (gnus-article-mark article)
+ (memq article gnus-newsgroup-replied)
+ (memq article gnus-newsgroup-expirable)
+ ;; Only insert the Subject string when it's different
+ ;; from the previous Subject string.
+ (if (and
+ gnus-show-threads
+ (gnus-subject-equal
+ (condition-case ()
+ (mail-header-subject
+ (gnus-data-header
+ (cadr
+ (gnus-data-find-list
+ article
+ (gnus-data-list t)))))
+ ;; Error on the side of excessive subjects.
+ (error ""))
+ (mail-header-subject header)))
+ ""
+ (mail-header-subject header))
+ nil (cdr (assq article gnus-newsgroup-scored))
+ (memq article gnus-newsgroup-processable))
+ (point)))))
+ (when (cdr datal)
+ (gnus-data-update-list
+ (cdr datal)
+ (- (gnus-data-pos data) (gnus-data-pos (cadr datal)) inserted)))))))
+
+(defun gnus-summary-update-article (article &optional iheader)
+ "Update ARTICLE in the summary buffer."
+ (set-buffer gnus-summary-buffer)
+ (let* ((header (gnus-summary-article-header article))
+ (id (mail-header-id header))
+ (data (gnus-data-find article))
+ (thread (gnus-id-to-thread id))
+ (references (mail-header-references header))
+ (parent
+ (gnus-id-to-thread
+ (or (gnus-parent-id
+ (when (and references
+ (not (equal "" references)))
+ references))
+ "none")))
+ (inhibit-read-only t)
+ (old (car thread)))
+ (when thread
+ (unless iheader
+ (setcar thread nil)
+ (when parent
+ (delq thread parent)))
+ (if (gnus-summary-insert-subject id header)
+ ;; Set the (possibly) new article number in the data structure.
+ (gnus-data-set-number data (gnus-id-to-article id))
+ (setcar thread old)
+ nil))))
+
+(defun gnus-rebuild-thread (id &optional line)
+ "Rebuild the thread containing ID.
+If LINE, insert the rebuilt thread starting on line LINE."
+ (let ((inhibit-read-only t)
+ old-pos current thread data)
+ (if (not gnus-show-threads)
+ (setq thread (list (car (gnus-id-to-thread id))))
+ ;; Get the thread this article is part of.
+ (setq thread (gnus-remove-thread id)))
+ (setq old-pos (point-at-bol))
+ (setq current (save-excursion
+ (and (re-search-backward "[\r\n]" nil t)
+ (gnus-summary-article-number))))
+ ;; If this is a gathered thread, we have to go some re-gathering.
+ (when (stringp (car thread))
+ (let ((subject (car thread))
+ roots thr)
+ (setq thread (cdr thread))
+ (while thread
+ (unless (memq (setq thr (gnus-id-to-thread
+ (gnus-root-id
+ (mail-header-id (caar thread)))))
+ roots)
+ (push thr roots))
+ (setq thread (cdr thread)))
+ ;; We now have all (unique) roots.
+ (if (= (length roots) 1)
+ ;; All the loose roots are now one solid root.
+ (setq thread (car roots))
+ (setq thread (cons subject (gnus-sort-threads roots))))))
+ (let (threads)
+ ;; We then insert this thread into the summary buffer.
+ (when line
+ (goto-char (point-min))
+ (forward-line (1- line)))
+ (let (gnus-newsgroup-data gnus-newsgroup-threads)
+ (if gnus-show-threads
+ (gnus-summary-prepare-threads (gnus-cut-threads (list thread)))
+ (gnus-summary-prepare-unthreaded thread))
+ (setq data (nreverse gnus-newsgroup-data))
+ (setq threads gnus-newsgroup-threads))
+ ;; We splice the new data into the data structure.
+ ;;!!! This is kinda bogus. We assume that in LINE is non-nil,
+ ;;!!! then we want to insert at the beginning of the buffer.
+ ;;!!! That happens to be true with Gnus now, but that may
+ ;;!!! change in the future. Perhaps.
+ (gnus-data-enter-list
+ (if line nil current) data (- (point) old-pos))
+ (setq gnus-newsgroup-threads
+ (nconc threads gnus-newsgroup-threads))
+ (gnus-data-compute-positions))))
+
+(defun gnus-number-to-header (number)
+ "Return the header for article NUMBER."
+ (let ((headers gnus-newsgroup-headers))
+ (while (and headers
+ (not (= number (mail-header-number (car headers)))))
+ (pop headers))
+ (when headers
+ (car headers))))
+
+(defun gnus-parent-headers (in-headers &optional generation)
+ "Return the headers of the GENERATIONth parent of HEADERS."
+ (unless generation
+ (setq generation 1))
+ (let ((parent t)
+ (headers in-headers)
+ references)
+ (while (and parent
+ (not (zerop generation))
+ (setq references (mail-header-references headers)))
+ (setq headers (if (and references
+ (setq parent (gnus-parent-id references)))
+ (car (gnus-id-to-thread parent))
+ nil))
+ (decf generation))
+ (and (not (eq headers in-headers))
+ headers)))
+
+(defun gnus-id-to-thread (id)
+ "Return the (sub-)thread where ID appears."
+ (gnus-gethash id gnus-newsgroup-dependencies))
+
+(defun gnus-id-to-article (id)
+ "Return the article number of ID."
+ (let ((thread (gnus-id-to-thread id)))
+ (when (and thread
+ (car thread))
+ (mail-header-number (car thread)))))
+
+(defun gnus-id-to-header (id)
+ "Return the article headers of ID."
+ (car (gnus-id-to-thread id)))
+
+(defun gnus-article-displayed-root-p (article)
+ "Say whether ARTICLE is a root(ish) article."
+ (let ((level (gnus-summary-thread-level article))
+ (refs (mail-header-references (gnus-summary-article-header article)))
+ particle)
+ (cond
+ ((null level) nil)
+ ((zerop level) t)
+ ((null refs) t)
+ ((null (gnus-parent-id refs)) t)
+ ((and (= 1 level)
+ (null (setq particle (gnus-id-to-article
+ (gnus-parent-id refs))))
+ (null (gnus-summary-thread-level particle)))))))
+
+(defun gnus-root-id (id)
+ "Return the id of the root of the thread where ID appears."
+ (let (last-id prev)
+ (while (and id (setq prev (car (gnus-id-to-thread id))))
+ (setq last-id id
+ id (gnus-parent-id (mail-header-references prev))))
+ last-id))
+
+(defun gnus-articles-in-thread (thread)
+ "Return the list of articles in THREAD."
+ (cons (mail-header-number (car thread))
+ (apply 'nconc (mapcar 'gnus-articles-in-thread (cdr thread)))))
+
+(defun gnus-remove-thread (id &optional dont-remove)
+ "Remove the thread that has ID in it."
+ (let (headers thread last-id)
+ ;; First go up in this thread until we find the root.
+ (setq last-id (gnus-root-id id)
+ headers (message-flatten-list (gnus-id-to-thread last-id)))
+ ;; We have now found the real root of this thread. It might have
+ ;; been gathered into some loose thread, so we have to search
+ ;; through the threads to find the thread we wanted.
+ (let ((threads gnus-newsgroup-threads)
+ sub)
+ (while threads
+ (setq sub (car threads))
+ (if (stringp (car sub))
+ ;; This is a gathered thread, so we look at the roots
+ ;; below it to find whether this article is in this
+ ;; gathered root.
+ (progn
+ (setq sub (cdr sub))
+ (while sub
+ (when (member (caar sub) headers)
+ (setq thread (car threads)
+ threads nil
+ sub nil))
+ (setq sub (cdr sub))))
+ ;; It's an ordinary thread, so we check it.
+ (when (eq (car sub) (car headers))
+ (setq thread sub
+ threads nil)))
+ (setq threads (cdr threads)))
+ ;; If this article is in no thread, then it's a root.
+ (if thread
+ (unless dont-remove
+ (setq gnus-newsgroup-threads (delq thread gnus-newsgroup-threads)))
+ (setq thread (gnus-id-to-thread last-id)))
+ (when thread
+ (prog1
+ thread ; We return this thread.
+ (unless dont-remove
+ (if (stringp (car thread))
+ (progn
+ ;; If we use dummy roots, then we have to remove the
+ ;; dummy root as well.
+ (when (eq gnus-summary-make-false-root 'dummy)
+ ;; We go to the dummy root by going to
+ ;; the first sub-"thread", and then one line up.
+ (gnus-summary-goto-article
+ (mail-header-number (caadr thread)))
+ (forward-line -1)
+ (gnus-delete-line)
+ (gnus-data-compute-positions))
+ (setq thread (cdr thread))
+ (while thread
+ (gnus-remove-thread-1 (car thread))
+ (setq thread (cdr thread))))
+ (gnus-remove-thread-1 thread))))))))
+
+(defun gnus-remove-thread-1 (thread)
+ "Remove the thread THREAD recursively."
+ (let ((number (mail-header-number (pop thread)))
+ d)
+ (setq thread (reverse thread))
+ (while thread
+ (gnus-remove-thread-1 (pop thread)))
+ (when (setq d (gnus-data-find number))
+ (goto-char (gnus-data-pos d))
+ (gnus-summary-show-thread)
+ (gnus-data-remove
+ number
+ (- (point-at-bol)
+ (prog1
+ (1+ (point-at-eol))
+ (gnus-delete-line)))))))
+
+(defun gnus-sort-threads-recursive (threads func)
+ ;; Responsible for sorting the root articles of threads.
+ (let ((subthread-sort-func (if (eq gnus-subthread-sort-functions
+ 'gnus-thread-sort-functions)
+ func
+ (gnus-make-sort-function
+ gnus-subthread-sort-functions))))
+ (sort (mapcar (lambda (thread)
+ (cons (car thread)
+ (and (cdr thread)
+ (gnus-sort-subthreads-recursive
+ (cdr thread) subthread-sort-func))))
+ threads) func)))
+
+(defun gnus-sort-subthreads-recursive (threads func)
+ ;; Responsible for sorting subthreads.
+ (sort (mapcar (lambda (thread)
+ (cons (car thread)
+ (and (cdr thread)
+ (gnus-sort-subthreads-recursive (cdr thread) func))))
+ threads) func))
+
+(defun gnus-sort-threads-loop (threads func)
+ (let* ((superthread (cons nil threads))
+ (stack (list (cons superthread threads)))
+ remaining-threads thread)
+ (while stack
+ (setq remaining-threads (cdr (car stack)))
+ (if remaining-threads
+ (progn (setq thread (car remaining-threads))
+ (setcdr (car stack) (cdr remaining-threads))
+ (if (cdr thread)
+ (push (cons thread (cdr thread)) stack)))
+ (setq thread (caar stack))
+ (setcdr thread (sort (cdr thread) func))
+ (pop stack)))
+ (cdr superthread)))
+
+(defun gnus-sort-threads (threads)
+ "Sort THREADS."
+ (if (not gnus-thread-sort-functions)
+ threads
+ (gnus-message 8 "Sorting threads...")
+ (prog1
+ (condition-case nil
+ (let ((max-lisp-eval-depth (max max-lisp-eval-depth 5000))
+ (sort-func (gnus-make-sort-function gnus-thread-sort-functions)))
+ (gnus-sort-threads-recursive threads sort-func))
+ ;; Even after binding max-lisp-eval-depth, the recursive
+ ;; sorter might fail for very long threads. In that case,
+ ;; try using a (less well-tested) non-recursive sorter.
+ (error (gnus-message 9 "Sorting threads with loop...")
+ (gnus-sort-threads-loop
+ threads (gnus-make-sort-function
+ gnus-thread-sort-functions))))
+ (gnus-message 8 "Sorting threads...done"))))
+
+(defun gnus-sort-articles (articles)
+ "Sort ARTICLES."
+ (when gnus-article-sort-functions
+ (gnus-message 7 "Sorting articles...")
+ (prog1
+ (setq gnus-newsgroup-headers
+ (sort articles (gnus-make-sort-function
+ gnus-article-sort-functions)))
+ (gnus-message 7 "Sorting articles...done"))))
+
+;; 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, ever 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))
+
+(defsubst gnus-article-sort-by-number (h1 h2)
+ "Sort articles by article number."
+ (< (mail-header-number h1)
+ (mail-header-number h2)))
+
+(defun gnus-thread-sort-by-number (h1 h2)
+ "Sort threads by root article number."
+ (gnus-article-sort-by-number
+ (gnus-thread-header h1) (gnus-thread-header h2)))
+
+(defsubst gnus-article-sort-by-random (h1 h2)
+ "Sort articles randomly."
+ (zerop (random 2)))
+
+(defun gnus-thread-sort-by-random (h1 h2)
+ "Sort threads randomly."
+ (gnus-article-sort-by-random
+ (gnus-thread-header h1) (gnus-thread-header h2)))
+
+(defsubst gnus-article-sort-by-lines (h1 h2)
+ "Sort articles by article Lines header."
+ (< (mail-header-lines h1)
+ (mail-header-lines h2)))
+
+(defun gnus-thread-sort-by-lines (h1 h2)
+ "Sort threads by root article Lines header."
+ (gnus-article-sort-by-lines
+ (gnus-thread-header h1) (gnus-thread-header h2)))
+
+(defsubst gnus-article-sort-by-chars (h1 h2)
+ "Sort articles by octet length."
+ (< (mail-header-chars h1)
+ (mail-header-chars h2)))
+
+(defun gnus-thread-sort-by-chars (h1 h2)
+ "Sort threads by root article octet length."
+ (gnus-article-sort-by-chars
+ (gnus-thread-header h1) (gnus-thread-header h2)))
+
+(defsubst gnus-article-sort-by-author (h1 h2)
+ "Sort articles by root author."
+ (gnus-string<
+ (let ((extract (funcall
+ gnus-extract-address-components
+ (mail-header-from h1))))
+ (or (car extract) (cadr extract) ""))
+ (let ((extract (funcall
+ gnus-extract-address-components
+ (mail-header-from h2))))
+ (or (car extract) (cadr extract) ""))))
+
+(defun gnus-thread-sort-by-author (h1 h2)
+ "Sort threads by root author."
+ (gnus-article-sort-by-author
+ (gnus-thread-header h1) (gnus-thread-header h2)))
+
+(defsubst gnus-article-sort-by-recipient (h1 h2)
+ "Sort articles by recipient."
+ (gnus-string<
+ (let ((extract (funcall
+ gnus-extract-address-components
+ (or (cdr (assq 'To (mail-header-extra h1))) ""))))
+ (or (car extract) (cadr extract)))
+ (let ((extract (funcall
+ gnus-extract-address-components
+ (or (cdr (assq 'To (mail-header-extra h2))) ""))))
+ (or (car extract) (cadr extract)))))
+
+(defun gnus-thread-sort-by-recipient (h1 h2)
+ "Sort threads by root recipient."
+ (gnus-article-sort-by-recipient
+ (gnus-thread-header h1) (gnus-thread-header h2)))
+
+(defsubst gnus-article-sort-by-subject (h1 h2)
+ "Sort articles by root subject."
+ (gnus-string<
+ (downcase (gnus-simplify-subject-re (mail-header-subject h1)))
+ (downcase (gnus-simplify-subject-re (mail-header-subject h2)))))
+
+(defun gnus-thread-sort-by-subject (h1 h2)
+ "Sort threads by root subject."
+ (gnus-article-sort-by-subject
+ (gnus-thread-header h1) (gnus-thread-header h2)))
+
+(defsubst gnus-article-sort-by-date (h1 h2)
+ "Sort articles by root article date."
+ (time-less-p
+ (gnus-date-get-time (mail-header-date h1))
+ (gnus-date-get-time (mail-header-date h2))))
+
+(defun gnus-thread-sort-by-date (h1 h2)
+ "Sort threads by root article date."
+ (gnus-article-sort-by-date
+ (gnus-thread-header h1) (gnus-thread-header h2)))
+
+(defsubst gnus-article-sort-by-score (h1 h2)
+ "Sort articles by root article score.
+Unscored articles will be counted as having a score of zero."
+ (> (or (cdr (assq (mail-header-number h1)
+ gnus-newsgroup-scored))
+ gnus-summary-default-score 0)
+ (or (cdr (assq (mail-header-number h2)
+ gnus-newsgroup-scored))
+ gnus-summary-default-score 0)))
+
+(defun gnus-thread-sort-by-score (h1 h2)
+ "Sort threads by root article score."
+ (gnus-article-sort-by-score
+ (gnus-thread-header h1) (gnus-thread-header h2)))
+
+(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.
+ (cond
+ ((null thread)
+ 0)
+ ((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)))
+ (t
+ (gnus-thread-total-score-1 (list thread)))))
+
+(defun gnus-article-sort-by-most-recent-number (h1 h2)
+ "Sort articles by number."
+ (gnus-article-sort-by-number h1 h2))
+
+(defun gnus-thread-sort-by-most-recent-number (h1 h2)
+ "Sort threads such that the thread with the most recently arrived article comes first."
+ (> (gnus-thread-highest-number h1) (gnus-thread-highest-number h2)))
+
+(defun gnus-thread-highest-number (thread)
+ "Return the highest article number in THREAD."
+ (apply 'max (mapcar (lambda (header)
+ (mail-header-number header))
+ (message-flatten-list thread))))
+
+(defun gnus-article-sort-by-most-recent-date (h1 h2)
+ "Sort articles by number."
+ (gnus-article-sort-by-date h1 h2))
+
+(defun gnus-thread-sort-by-most-recent-date (h1 h2)
+ "Sort threads such that the thread with the most recently dated article comes first."
+ (> (gnus-thread-latest-date h1) (gnus-thread-latest-date h2)))
+
+; Since this is called not only to sort the top-level threads, but
+; also in recursive sorts to order the articles within a thread, each
+; article will be processed many times. Thus it speeds things up
+; quite a bit to use gnus-date-get-time, which caches the time value.
+(defun gnus-thread-latest-date (thread)
+ "Return the highest article date in THREAD."
+ (apply 'max
+ (mapcar (lambda (header) (gnus-float-time
+ (gnus-date-get-time
+ (mail-header-date header))))
+ (message-flatten-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 (append
+ (mapcar 'gnus-thread-total-score
+ (cdr (gnus-id-to-thread (mail-header-id root))))
+ (when (> (mail-header-number root) 0)
+ (list (or (cdr (assq (mail-header-number root)
+ gnus-newsgroup-scored))
+ gnus-summary-default-score 0))))
+ (list gnus-summary-default-score)
+ '(0))))
+
+;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
+(defvar gnus-tmp-prev-subject nil)
+(defvar gnus-tmp-false-parent nil)
+(defvar gnus-tmp-root-expunged nil)
+(defvar gnus-tmp-dummy-line nil)
+
+(defun gnus-extra-header (type &optional header)
+ "Return the extra header of TYPE."
+ (or (cdr (assq type (mail-header-extra (or header gnus-tmp-header))))
+ ""))
+
+(defvar gnus-tmp-thread-tree-header-string "")
+
+(defcustom gnus-sum-thread-tree-root "> "
+ "With %B spec, used for the root of a thread.
+If nil, use subject instead."
+ :version "22.1"
+ :type '(radio (const :format "%v " nil) string)
+ :group 'gnus-thread)
+
+(defcustom gnus-sum-thread-tree-false-root "> "
+ "With %B spec, used for a false root of a thread.
+If nil, use subject instead."
+ :version "22.1"
+ :type '(radio (const :format "%v " nil) string)
+ :group 'gnus-thread)
+
+(defcustom gnus-sum-thread-tree-single-indent ""
+ "With %B spec, used for a thread with just one message.
+If nil, use subject instead."
+ :version "22.1"
+ :type '(radio (const :format "%v " nil) string)
+ :group 'gnus-thread)
+
+(defcustom gnus-sum-thread-tree-vertical "| "
+ "With %B spec, used for drawing a vertical line."
+ :version "22.1"
+ :type 'string
+ :group 'gnus-thread)
+
+(defcustom gnus-sum-thread-tree-indent " "
+ "With %B spec, used for indenting."
+ :version "22.1"
+ :type 'string
+ :group 'gnus-thread)
+
+(defcustom gnus-sum-thread-tree-leaf-with-other "+-> "
+ "With %B spec, used for a leaf with brothers."
+ :version "22.1"
+ :type 'string
+ :group 'gnus-thread)
+
+(defcustom gnus-sum-thread-tree-single-leaf "\\-> "
+ "With %B spec, used for a leaf without brothers."
+ :version "22.1"
+ :type 'string
+ :group 'gnus-thread)
+
+(defcustom gnus-summary-display-while-building nil
+ "If non-nil, show and update the summary buffer as it's being built.
+If the value is t, update the buffer after every line is inserted. If
+the value is an integer (N), update the display every N lines."
+ :version "22.1"
+ :group 'gnus-thread
+ :type '(choice (const :tag "off" nil)
+ number
+ (const :tag "frequently" t)))
+
+(defun gnus-summary-prepare-threads (threads)
+ "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 7 "Generating summary...")
+
+ (setq gnus-newsgroup-threads threads)
+ (beginning-of-line)
+
+ (let ((gnus-tmp-level 0)
+ (default-score (or gnus-summary-default-score 0))
+ (gnus-visual-p (gnus-visual-p 'summary-highlight 'highlight))
+ (building-line-count gnus-summary-display-while-building)
+ (building-count (integerp gnus-summary-display-while-building))
+ thread number subject stack state gnus-tmp-gathered beg-match
+ new-roots gnus-tmp-new-adopts thread-end simp-subject
+ gnus-tmp-header gnus-tmp-unread gnus-tmp-downloaded
+ gnus-tmp-replied gnus-tmp-subject-or-nil
+ gnus-tmp-dummy gnus-tmp-indentation gnus-tmp-lines gnus-tmp-score
+ gnus-tmp-score-char gnus-tmp-from gnus-tmp-name
+ gnus-tmp-number gnus-tmp-opening-bracket gnus-tmp-closing-bracket
+ tree-stack)
+
+ (setq gnus-tmp-prev-subject nil
+ gnus-tmp-thread-tree-header-string "")
+
+ (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)
+
+ ;; Do the threaded display.
+
+ (if gnus-summary-display-while-building
+ (switch-to-buffer (buffer-name)))
+ (while (or threads stack gnus-tmp-new-adopts new-roots)
+
+ (if (and (= gnus-tmp-level 0)
+ (or (not stack)
+ (= (caar stack) 0))
+ (not gnus-tmp-false-parent)
+ (or gnus-tmp-new-adopts new-roots))
+ (if gnus-tmp-new-adopts
+ (setq gnus-tmp-level (if gnus-tmp-root-expunged 0 1)
+ thread (list (car gnus-tmp-new-adopts))
+ gnus-tmp-header (caar thread)
+ gnus-tmp-new-adopts (cdr gnus-tmp-new-adopts))
+ (when new-roots
+ (setq thread (list (car new-roots))
+ gnus-tmp-header (caar thread)
+ new-roots (cdr new-roots))))
+
+ (if threads
+ ;; If there are some threads, we do them before the
+ ;; threads on the stack.
+ (setq thread threads
+ gnus-tmp-header (caar thread))
+ ;; There were no current threads, so we pop something off
+ ;; the stack.
+ (setq state (car stack)
+ gnus-tmp-level (car state)
+ tree-stack (cadr state)
+ thread (caddr state)
+ stack (cdr stack)
+ gnus-tmp-header (caar thread))))
+
+ (setq gnus-tmp-false-parent nil)
+ (setq gnus-tmp-root-expunged nil)
+ (setq thread-end nil)
+
+ (if (stringp gnus-tmp-header)
+ ;; The header is a dummy root.
+ (cond
+ ((eq gnus-summary-make-false-root 'adopt)
+ ;; We let the first article adopt the rest.
+ (setq gnus-tmp-new-adopts (nconc gnus-tmp-new-adopts
+ (cddar thread)))
+ (setq gnus-tmp-gathered
+ (nconc (mapcar
+ (lambda (h) (mail-header-number (car h)))
+ (cddar thread))
+ gnus-tmp-gathered))
+ (setq thread (cons (list (caar thread)
+ (cadar thread))
+ (cdr thread)))
+ (setq gnus-tmp-level -1
+ gnus-tmp-false-parent t))
+ ((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)))
+ (cddar thread))
+ gnus-tmp-gathered))
+ (setq gnus-tmp-level -1))
+ ((eq gnus-summary-make-false-root 'dummy)
+ ;; We remember that we probably want to output a dummy
+ ;; root.
+ (setq gnus-tmp-dummy-line gnus-tmp-header)
+ (setq gnus-tmp-prev-subject gnus-tmp-header))
+ (t
+ ;; We do not make a root for the gathered
+ ;; sub-threads at all.
+ (setq gnus-tmp-level -1)))
+
+ (setq number (mail-header-number gnus-tmp-header)
+ subject (mail-header-subject gnus-tmp-header)
+ simp-subject (gnus-simplify-subject-fully subject))
+
+ (cond
+ ;; If the thread has changed subject, we might want to make
+ ;; this subthread into a root.
+ ((and (null gnus-thread-ignore-subject)
+ (not (zerop gnus-tmp-level))
+ gnus-tmp-prev-subject
+ (not (string= gnus-tmp-prev-subject simp-subject)))
+ (setq new-roots (nconc new-roots (list (car thread)))
+ thread-end t
+ gnus-tmp-header nil))
+ ;; If the article lies outside the current limit,
+ ;; then we do not display it.
+ ((not (memq number gnus-newsgroup-limit))
+ (setq gnus-tmp-gathered
+ (nconc (mapcar
+ (lambda (h) (mail-header-number (car h)))
+ (cdar thread))
+ gnus-tmp-gathered))
+ (setq gnus-tmp-new-adopts (if (cdar thread)
+ (append gnus-tmp-new-adopts
+ (cdar thread))
+ gnus-tmp-new-adopts)
+ thread-end t
+ gnus-tmp-header nil)
+ (when (zerop gnus-tmp-level)
+ (setq gnus-tmp-root-expunged t)))
+ ;; Perhaps this article is to be marked as read?
+ ((and gnus-summary-mark-below
+ (< (or (cdr (assq number gnus-newsgroup-scored))
+ default-score)
+ gnus-summary-mark-below)
+ ;; Don't touch sparse articles.
+ (not (gnus-summary-article-sparse-p number))
+ (not (gnus-summary-article-ancient-p number)))
+ (setq gnus-newsgroup-unreads
+ (delq number gnus-newsgroup-unreads))
+ (if gnus-newsgroup-auto-expire
+ (setq gnus-newsgroup-expirable
+ (gnus-add-to-sorted-list
+ gnus-newsgroup-expirable number))
+ (push (cons number gnus-low-score-mark)
+ gnus-newsgroup-reads))))
+
+ (when gnus-tmp-header
+ ;; We may have an old dummy line to output before this
+ ;; article.
+ (when (and gnus-tmp-dummy-line
+ (gnus-subject-equal
+ gnus-tmp-dummy-line
+ (mail-header-subject gnus-tmp-header)))
+ (gnus-summary-insert-dummy-line
+ gnus-tmp-dummy-line (mail-header-number gnus-tmp-header))
+ (setq gnus-tmp-dummy-line nil))
+
+ ;; Compute the mark.
+ (setq gnus-tmp-unread (gnus-article-mark number))
+
+ (push (gnus-data-make number gnus-tmp-unread (1+ (point))
+ gnus-tmp-header gnus-tmp-level)
+ gnus-newsgroup-data)
+
+ ;; Actually insert the line.
+ (setq
+ gnus-tmp-subject-or-nil
+ (cond
+ ((and gnus-thread-ignore-subject
+ gnus-tmp-prev-subject
+ (not (string= gnus-tmp-prev-subject simp-subject)))
+ subject)
+ ((zerop gnus-tmp-level)
+ (if (and (eq gnus-summary-make-false-root 'empty)
+ (memq number gnus-tmp-gathered)
+ gnus-tmp-prev-subject
+ (string= gnus-tmp-prev-subject simp-subject))
+ gnus-summary-same-subject
+ subject))
+ (t gnus-summary-same-subject)))
+ (if (and (eq gnus-summary-make-false-root 'adopt)
+ (= gnus-tmp-level 1)
+ (memq number gnus-tmp-gathered))
+ (setq gnus-tmp-opening-bracket ?\<
+ gnus-tmp-closing-bracket ?\>)
+ (setq gnus-tmp-opening-bracket ?\[
+ gnus-tmp-closing-bracket ?\]))
+ (if (>= gnus-tmp-level (length gnus-thread-indent-array))
+ (gnus-make-thread-indent-array
+ (max (* 2 (length gnus-thread-indent-array))
+ gnus-tmp-level)))
+ (setq
+ gnus-tmp-indentation
+ (aref gnus-thread-indent-array gnus-tmp-level)
+ gnus-tmp-lines (mail-header-lines gnus-tmp-header)
+ gnus-tmp-score (or (cdr (assq number gnus-newsgroup-scored))
+ gnus-summary-default-score 0)
+ gnus-tmp-score-char
+ (if (or (null gnus-summary-default-score)
+ (<= (abs (- gnus-tmp-score gnus-summary-default-score))
+ gnus-summary-zcore-fuzz))
+ ? ;Whitespace
+ (if (< gnus-tmp-score gnus-summary-default-score)
+ gnus-score-below-mark gnus-score-over-mark))
+ gnus-tmp-replied
+ (cond ((memq number gnus-newsgroup-processable)
+ gnus-process-mark)
+ ((memq number gnus-newsgroup-cached)
+ gnus-cached-mark)
+ ((memq number gnus-newsgroup-replied)
+ gnus-replied-mark)
+ ((memq number gnus-newsgroup-forwarded)
+ gnus-forwarded-mark)
+ ((memq number gnus-newsgroup-saved)
+ gnus-saved-mark)
+ ((memq number gnus-newsgroup-unseen)
+ gnus-unseen-mark)
+ (t gnus-no-mark))
+ gnus-tmp-downloaded
+ (cond ((memq number gnus-newsgroup-undownloaded)
+ gnus-undownloaded-mark)
+ (gnus-newsgroup-agentized
+ gnus-downloaded-mark)
+ (t
+ gnus-no-mark))
+ gnus-tmp-from (mail-header-from gnus-tmp-header)
+ gnus-tmp-name
+ (cond
+ ((string-match "<[^>]+> *$" gnus-tmp-from)
+ (setq beg-match (match-beginning 0))
+ (or (and (string-match "^\".+\"" gnus-tmp-from)
+ (substring gnus-tmp-from 1 (1- (match-end 0))))
+ (substring gnus-tmp-from 0 beg-match)))
+ ((string-match "(.+)" gnus-tmp-from)
+ (substring gnus-tmp-from
+ (1+ (match-beginning 0)) (1- (match-end 0))))
+ (t gnus-tmp-from))
+
+ ;; Do the %B string
+ gnus-tmp-thread-tree-header-string
+ (cond
+ ((not gnus-show-threads) "")
+ ((zerop gnus-tmp-level)
+ (cond ((cdar thread)
+ (or gnus-sum-thread-tree-root subject))
+ (gnus-tmp-new-adopts
+ (or gnus-sum-thread-tree-false-root subject))
+ (t
+ (or gnus-sum-thread-tree-single-indent subject))))
+ (t
+ (concat (apply 'concat
+ (mapcar (lambda (item)
+ (if (= item 1)
+ gnus-sum-thread-tree-vertical
+ gnus-sum-thread-tree-indent))
+ (cdr (reverse tree-stack))))
+ (if (nth 1 thread)
+ gnus-sum-thread-tree-leaf-with-other
+ gnus-sum-thread-tree-single-leaf)))))
+ (when (string= gnus-tmp-name "")
+ (setq gnus-tmp-name gnus-tmp-from))
+ (unless (numberp gnus-tmp-lines)
+ (setq gnus-tmp-lines -1))
+ (if (= gnus-tmp-lines -1)
+ (setq gnus-tmp-lines "?")
+ (setq gnus-tmp-lines (number-to-string gnus-tmp-lines)))
+ (gnus-put-text-property
+ (point)
+ (progn (eval gnus-summary-line-format-spec) (point))
+ 'gnus-number number)
+ (when gnus-visual-p
+ (forward-line -1)
+ (gnus-summary-highlight-line)
+ (when gnus-summary-update-hook
+ (gnus-run-hooks 'gnus-summary-update-hook))
+ (forward-line 1))
+
+ (setq gnus-tmp-prev-subject simp-subject)))
+
+ (when (nth 1 thread)
+ (push (list (max 0 gnus-tmp-level)
+ (copy-sequence tree-stack)
+ (nthcdr 1 thread))
+ stack))
+ (push (if (nth 1 thread) 1 0) tree-stack)
+ (incf gnus-tmp-level)
+ (setq threads (if thread-end nil (cdar thread)))
+ (if gnus-summary-display-while-building
+ (if building-count
+ (progn
+ ;; use a set frequency
+ (setq building-line-count (1- building-line-count))
+ (when (= building-line-count 0)
+ (sit-for 0)
+ (setq building-line-count
+ gnus-summary-display-while-building)))
+ ;; always
+ (sit-for 0)))
+ (unless threads
+ (setq gnus-tmp-level 0)))))
+ (gnus-message 7 "Generating summary...done"))
+
+(defun gnus-summary-prepare-unthreaded (headers)
+ "Generate an unthreaded summary buffer based on HEADERS."
+ (let (header number mark)
+
+ (beginning-of-line)
+
+ (while headers
+ ;; We may have to root out some bad articles...
+ (when (memq (setq number (mail-header-number
+ (setq header (pop headers))))
+ gnus-newsgroup-limit)
+ ;; Mark article as read when it has a low score.
+ (when (and gnus-summary-mark-below
+ (< (or (cdr (assq number gnus-newsgroup-scored))
+ gnus-summary-default-score 0)
+ gnus-summary-mark-below)
+ (not (gnus-summary-article-ancient-p number)))
+ (setq gnus-newsgroup-unreads
+ (delq number gnus-newsgroup-unreads))
+ (if gnus-newsgroup-auto-expire
+ (push number gnus-newsgroup-expirable)
+ (push (cons number gnus-low-score-mark)
+ gnus-newsgroup-reads)))
+
+ (setq mark (gnus-article-mark number))
+ (push (gnus-data-make number mark (1+ (point)) header 0)
+ gnus-newsgroup-data)
+ (gnus-summary-insert-line
+ header 0 number
+ (memq number gnus-newsgroup-undownloaded)
+ 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))))))
+
+(declare-function gnus-parameter-list-identifier "gnus-art" (name) t)
+
+(defun gnus-group-get-list-identifiers (group)
+ "Get list identifier regexp for GROUP."
+ (or (gnus-parameter-list-identifier group)
+ (if (consp gnus-list-identifiers)
+ (mapconcat 'identity gnus-list-identifiers " *\\|")
+ gnus-list-identifiers)))
+
+(defun gnus-summary-remove-list-identifiers ()
+ "Remove list identifiers in `gnus-list-identifiers' from articles in the current group."
+ (let ((regexp (gnus-group-get-list-identifiers gnus-newsgroup-name))
+ changed subject)
+ (when regexp
+ (setq regexp (concat "^\\(?:R[Ee]: +\\)*\\(" regexp " *\\)"))
+ (dolist (header gnus-newsgroup-headers)
+ (setq subject (mail-header-subject header)
+ changed nil)
+ (while (string-match regexp subject)
+ (setq subject
+ (concat (substring subject 0 (match-beginning 1))
+ (substring subject (match-end 0)))
+ changed t))
+ (when changed
+ (when (string-match "^\\(\\(?:R[Ee]: +\\)+\\)R[Ee]: +" subject)
+ (setq subject
+ (concat (substring subject 0 (match-beginning 1))
+ (substring subject (match-end 1)))))
+ (mail-header-set-subject header subject))))))
+
+(defun gnus-fetch-headers (articles &optional limit force-new dependencies)
+ "Fetch headers of ARTICLES."
+ (let ((name (gnus-group-decoded-name gnus-newsgroup-name)))
+ (gnus-message 7 "Fetching headers for %s..." name)
+ (prog1
+ (if (eq 'nov
+ (setq gnus-headers-retrieved-by
+ (gnus-retrieve-headers
+ articles gnus-newsgroup-name
+ (or limit
+ ;; We might want to fetch old headers, but
+ ;; not if there is only 1 article.
+ (and (or (and
+ (not (eq gnus-fetch-old-headers 'some))
+ (not (numberp gnus-fetch-old-headers)))
+ (> (length articles) 1))
+ gnus-fetch-old-headers)))))
+ (gnus-get-newsgroup-headers-xover
+ articles force-new dependencies gnus-newsgroup-name t)
+ (gnus-get-newsgroup-headers dependencies force-new))
+ (gnus-message 7 "Fetching headers for %s...done" name))))
+
+(defun gnus-select-newsgroup (group &optional read-all select-articles)
+ "Select newsgroup GROUP.
+If READ-ALL is non-nil, all articles in the group are selected.
+If SELECT-ARTICLES, only select those articles from GROUP."
+ (let* ((entry (gnus-group-entry group))
+ ;;!!! Dirty hack; should be removed.
+ (gnus-summary-ignore-duplicates
+ (if (eq (car (gnus-find-method-for-group group)) 'nnvirtual)
+ t
+ gnus-summary-ignore-duplicates))
+ (info (nth 2 entry))
+ charset articles fetched-articles cached)
+
+ (unless (gnus-check-server
+ (set (make-local-variable 'gnus-current-select-method)
+ (gnus-find-method-for-group group)))
+ (error "Couldn't open server"))
+ (setq charset (gnus-group-name-charset gnus-current-select-method group))
+
+ (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.
+ (when (derived-mode-p 'gnus-summary-mode)
+ (gnus-kill-buffer (current-buffer)))
+ (error
+ "Couldn't activate group %s: %s"
+ (mm-decode-coding-string group charset)
+ (mm-decode-coding-string (gnus-status-message group) charset))))
+
+ (unless (gnus-request-group group t nil (gnus-get-info group))
+ (when (derived-mode-p 'gnus-summary-mode)
+ (gnus-kill-buffer (current-buffer)))
+ (error "Couldn't request group %s: %s"
+ (mm-decode-coding-string group charset)
+ (mm-decode-coding-string (gnus-status-message group) charset)))
+
+ (when (and gnus-agent
+ (gnus-active group))
+ (gnus-agent-possibly-alter-active group (gnus-active group) info)
+
+ (setq gnus-summary-use-undownloaded-faces
+ (gnus-agent-find-parameter
+ group
+ 'agent-enable-undownloaded-faces)))
+
+ (setq gnus-newsgroup-name group
+ gnus-newsgroup-unselected nil
+ gnus-newsgroup-unreads (gnus-list-of-unread-articles group))
+
+ (let ((display (gnus-group-find-parameter group 'display)))
+ (setq gnus-newsgroup-display
+ (cond
+ ((not (zerop (or (car-safe read-all) 0)))
+ ;; The user entered the group with C-u SPC/RET, let's show
+ ;; all articles.
+ 'gnus-not-ignore)
+ ((eq display 'all)
+ 'gnus-not-ignore)
+ ((arrayp display)
+ (gnus-summary-display-make-predicate (mapcar 'identity display)))
+ ((numberp display)
+ ;; The following is probably the "correct" solution, but
+ ;; it makes Gnus fetch all headers and then limit the
+ ;; articles (which is slow), so instead we hack the
+ ;; select-articles parameter instead. -- Simon Josefsson
+ ;; <jas@kth.se>
+ ;;
+ ;; (gnus-byte-compile
+ ;; `(lambda () (> number ,(- (cdr (gnus-active group))
+ ;; display)))))
+ (setq select-articles
+ (gnus-uncompress-range
+ (cons (let ((tmp (- (cdr (gnus-active group)) display)))
+ (if (> tmp 0)
+ tmp
+ 1))
+ (cdr (gnus-active group)))))
+ nil)
+ (t
+ nil))))
+
+ (gnus-summary-setup-default-charset)
+
+ ;; Kludge to avoid having cached articles nixed out in virtual groups.
+ (when (gnus-virtual-group-p group)
+ (setq cached gnus-newsgroup-cached))
+
+ (setq gnus-newsgroup-unreads
+ (gnus-sorted-ndifference
+ (gnus-sorted-ndifference gnus-newsgroup-unreads
+ gnus-newsgroup-marked)
+ gnus-newsgroup-dormant))
+
+ (setq gnus-newsgroup-processable nil)
+
+ (gnus-update-read-articles group gnus-newsgroup-unreads t)
+
+ ;; Adjust and set lists of article marks.
+ (when info
+ (gnus-adjust-marked-articles info))
+ (if (setq articles select-articles)
+ (setq gnus-newsgroup-unselected
+ (gnus-sorted-difference gnus-newsgroup-unreads articles))
+ (setq articles (gnus-articles-to-read group read-all)))
+
+ (cond
+ ((null articles)
+ ;;(gnus-message 3 "Couldn't select newsgroup -- no articles to display")
+ 'quit)
+ ((eq articles 0) nil)
+ (t
+ ;; Init the dependencies hash table.
+ (setq gnus-newsgroup-dependencies
+ (gnus-make-hashtable (length articles)))
+ (if (gnus-buffer-live-p gnus-group-buffer)
+ (gnus-set-global-variables)
+ (set-default 'gnus-newsgroup-name gnus-newsgroup-name))
+ ;; Retrieve the headers and read them in.
+
+ (setq gnus-newsgroup-headers (gnus-fetch-headers articles))
+
+ ;; Kludge to avoid having cached articles nixed out in virtual groups.
+ (when cached
+ (setq gnus-newsgroup-cached cached))
+
+ ;; Suppress duplicates?
+ (when gnus-suppress-duplicates
+ (gnus-dup-suppress-articles))
+
+ ;; Set the initial limit.
+ (setq gnus-newsgroup-limit (copy-sequence articles))
+ ;; Remove canceled articles from the list of unread articles.
+ (setq fetched-articles
+ (mapcar (lambda (headers) (mail-header-number headers))
+ gnus-newsgroup-headers))
+ (setq gnus-newsgroup-articles fetched-articles)
+ (setq gnus-newsgroup-unreads
+ (gnus-sorted-nintersection
+ gnus-newsgroup-unreads fetched-articles))
+ (gnus-compute-unseen-list)
+
+ ;; Removed marked articles that do not exist.
+ (gnus-update-missing-marks
+ (gnus-sorted-difference articles fetched-articles))
+ ;; We might want to build some more threads first.
+ (when (and gnus-fetch-old-headers
+ (eq gnus-headers-retrieved-by 'nov))
+ (if (eq gnus-fetch-old-headers 'invisible)
+ (gnus-build-all-threads)
+ (gnus-build-old-threads)))
+ ;; Let the Gnus agent mark articles as read.
+ (when gnus-agent
+ (gnus-agent-get-undownloaded-list))
+ ;; Remove list identifiers from subject
+ (gnus-summary-remove-list-identifiers)
+ ;; Check whether auto-expire is to be done in this group.
+ (setq gnus-newsgroup-auto-expire
+ (and (gnus-group-auto-expirable-p group)
+ (not (gnus-group-read-only-p group))))
+ ;; Set up the article buffer now, if necessary.
+ (unless (and gnus-single-article-buffer
+ (equal gnus-article-buffer "*Article*"))
+ (gnus-article-setup-buffer))
+ ;; First and last article in this newsgroup.
+ (when gnus-newsgroup-headers
+ (setq gnus-newsgroup-begin
+ (mail-header-number (car gnus-newsgroup-headers))
+ gnus-newsgroup-end
+ (mail-header-number
+ (gnus-last-element gnus-newsgroup-headers))))
+ ;; GROUP is successfully selected.
+ (or gnus-newsgroup-headers t)))))
+
+(defun gnus-compute-unseen-list ()
+ ;; The `seen' marks are treated specially.
+ (if (not gnus-newsgroup-seen)
+ (setq gnus-newsgroup-unseen gnus-newsgroup-articles)
+ (setq gnus-newsgroup-unseen
+ (gnus-inverse-list-range-intersection
+ gnus-newsgroup-articles gnus-newsgroup-seen))))
+
+(declare-function gnus-get-predicate "gnus-agent" (predicate))
+
+(defun gnus-summary-display-make-predicate (display)
+ (require 'gnus-agent)
+ (when (= (length display) 1)
+ (setq display (car display)))
+ (unless gnus-summary-display-cache
+ (dolist (elem (append '((unread . unread)
+ (read . read)
+ (unseen . unseen))
+ gnus-article-mark-lists))
+ (push (cons (cdr elem)
+ (gnus-byte-compile ;Why bother?
+ `(lambda () (gnus-article-marked-p ',(cdr elem)))))
+ gnus-summary-display-cache)))
+ (let ((gnus-category-predicate-alist gnus-summary-display-cache)
+ (gnus-category-predicate-cache gnus-summary-display-cache))
+ (gnus-get-predicate display)))
+
+;; Uses the dynamically bound `gnus-number' variable.
+(defvar gnus-number)
+(defun gnus-article-marked-p (type &optional article)
+ (let ((article (or article gnus-number)))
+ (cond
+ ((eq type 'tick)
+ (memq article gnus-newsgroup-marked))
+ ((eq type 'spam)
+ (memq article gnus-newsgroup-spam-marked))
+ ((eq type 'unsend)
+ (memq article gnus-newsgroup-unsendable))
+ ((eq type 'undownload)
+ (memq article gnus-newsgroup-undownloaded))
+ ((eq type 'download)
+ (memq article gnus-newsgroup-downloadable))
+ ((eq type 'unread)
+ (memq article gnus-newsgroup-unreads))
+ ((eq type 'read)
+ (memq article gnus-newsgroup-reads))
+ ((eq type 'dormant)
+ (memq article gnus-newsgroup-dormant) )
+ ((eq type 'expire)
+ (memq article gnus-newsgroup-expirable))
+ ((eq type 'reply)
+ (memq article gnus-newsgroup-replied))
+ ((eq type 'killed)
+ (memq article gnus-newsgroup-killed))
+ ((eq type 'bookmark)
+ (assq article gnus-newsgroup-bookmarks))
+ ((eq type 'score)
+ (assq article gnus-newsgroup-scored))
+ ((eq type 'save)
+ (memq article gnus-newsgroup-saved))
+ ((eq type 'cache)
+ (memq article gnus-newsgroup-cached))
+ ((eq type 'forward)
+ (memq article gnus-newsgroup-forwarded))
+ ((eq type 'seen)
+ (not (memq article gnus-newsgroup-unseen)))
+ (t t))))
+
+(defun gnus-articles-to-read (group &optional read-all)
+ "Find out what articles the user wants to read."
+ (let* ((only-read-p t)
+ (articles
+ (gnus-list-range-difference
+ ;; Select all articles if `read-all' is non-nil, or if there
+ ;; are no unread articles.
+ (if (or read-all
+ (and (zerop (length gnus-newsgroup-marked))
+ (zerop (length gnus-newsgroup-unreads)))
+ ;; Fetch all if the predicate is non-nil.
+ gnus-newsgroup-display)
+ ;; We want to select the headers for all the articles in
+ ;; the group, so we select either all the active
+ ;; articles in the group, or (if that's nil), the
+ ;; articles in the cache.
+ (or
+ (if gnus-newsgroup-maximum-articles
+ (let ((active (gnus-active group)))
+ (gnus-uncompress-range
+ (cons (max (car active)
+ (- (cdr active)
+ gnus-newsgroup-maximum-articles
+ -1))
+ (cdr active))))
+ (gnus-uncompress-range (gnus-active group)))
+ (gnus-cache-articles-in-group group))
+ ;; Select only the "normal" subset of articles.
+ (setq only-read-p nil)
+ (gnus-sorted-nunion
+ (gnus-sorted-union gnus-newsgroup-dormant gnus-newsgroup-marked)
+ gnus-newsgroup-unreads))
+ (cdr (assq 'unexist (gnus-info-marks (gnus-get-info group))))))
+ (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)
+ ((numberp gnus-newsgroup-display)
+ gnus-newsgroup-display)
+ (t
+ (condition-case ()
+ (cond
+ ((and (or (<= scored marked) (= scored number))
+ (numberp gnus-large-newsgroup)
+ (> number gnus-large-newsgroup))
+ (let* ((cursor-in-echo-area nil)
+ (initial (gnus-parameter-large-newsgroup-initial
+ gnus-newsgroup-name))
+ (default (if only-read-p
+ (or initial gnus-large-newsgroup)
+ number))
+ (input
+ (read-string
+ (if only-read-p
+ (format
+ "How many articles from %s (available %d, default %d): "
+ (gnus-group-decoded-name
+ (gnus-group-real-name gnus-newsgroup-name))
+ number default)
+ (format
+ "How many articles from %s (%d default): "
+ (gnus-group-decoded-name
+ (gnus-group-real-name gnus-newsgroup-name))
+ default))
+ nil
+ nil
+ (number-to-string default))))
+ (if (string-match "^[ \t]*$" input) number input)))
+ ((and (> scored marked) (< scored number)
+ (> (- scored number) 20))
+ (let ((input
+ (read-string
+ (format "%s %s (%d scored, %d total): "
+ "How many articles from"
+ (gnus-group-decoded-name
+ (gnus-group-real-name gnus-newsgroup-name))
+ scored number))))
+ (if (string-match "^[ \t]*$" input)
+ number input)))
+ (t number))
+ (quit
+ (message "Quit getting the articles to read")
+ 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)))
+
+ (when (< (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-difference gnus-newsgroup-unreads articles))
+ (when gnus-alter-articles-to-read-function
+ (setq articles
+ (sort
+ (funcall gnus-alter-articles-to-read-function
+ gnus-newsgroup-name articles)
+ '<)))
+ articles)))
+
+(defun gnus-killed-articles (killed articles)
+ (let (out)
+ (while articles
+ (when (inline (gnus-member-of-range (car articles) killed))
+ (push (car articles) out))
+ (setq articles (cdr articles)))
+ out))
+
+(defun gnus-article-mark-to-type (mark)
+ "Return the type of MARK."
+ (or (cadr (assq mark gnus-article-special-mark-lists))
+ 'list))
+
+(defun gnus-article-unpropagatable-p (mark)
+ "Return whether MARK should be propagated to back end."
+ (memq mark gnus-article-unpropagated-mark-lists))
+
+(defun gnus-adjust-marked-articles (info)
+ "Set all article lists and remove all marks that are no longer valid."
+ (let* ((marked-lists (gnus-info-marks info))
+ (active (gnus-active (gnus-info-group info)))
+ (min (car active))
+ (max (cdr active))
+ (types gnus-article-mark-lists)
+ marks var articles article mark mark-type
+ bgn end)
+ ;; Hack to avoid adjusting marks for imap.
+ (when (eq (car (gnus-find-method-for-group (gnus-info-group info)))
+ 'nnimap)
+ (setq min 1))
+
+ (dolist (marks marked-lists)
+ (setq mark (car marks)
+ mark-type (gnus-article-mark-to-type mark)
+ var (intern (format "gnus-newsgroup-%s" (car (rassq mark types)))))
+ ;; We set the variable according to the type of the marks list,
+ ;; and then adjust the marks to a subset of the active articles.
+ (cond
+ ;; Adjust "simple" lists - compressed yet unsorted
+ ((eq mark-type 'list)
+ ;; Simultaneously uncompress and clip to active range
+ ;; See gnus-uncompress-range for a description of possible marks
+ (let (l lh)
+ (if (not (cadr marks))
+ (set var nil)
+ (setq articles (if (numberp (cddr marks))
+ (list (cdr marks))
+ (cdr marks))
+ lh (cons nil nil)
+ l lh)
+
+ (while (setq article (pop articles))
+ (cond ((consp article)
+ (setq bgn (max (car article) min)
+ end (min (cdr article) max))
+ (while (<= bgn end)
+ (setq l (setcdr l (cons bgn nil))
+ bgn (1+ bgn))))
+ ((and (<= min article)
+ (>= max article))
+ (setq l (setcdr l (cons article nil))))))
+ (set var (cdr lh)))))
+ ;; Adjust assocs.
+ ((eq mark-type 'tuple)
+ (set var (setq articles (cdr marks)))
+ (when (not (listp (cdr (symbol-value var))))
+ (set var (list (symbol-value var))))
+ (when (not (listp (cdr articles)))
+ (setq articles (list articles)))
+ (while articles
+ (when (or (not (consp (setq article (pop articles))))
+ (< (car article) min)
+ (> (car article) max))
+ (set var (delq article (symbol-value var))))))
+ ;; Adjust ranges (sloppily).
+ ((eq mark-type 'range)
+ (cond
+ ((eq mark 'seen)
+ ;; Fix the record for `seen' if it looks like (seen NUM1 . NUM2).
+ ;; It should be (seen (NUM1 . NUM2)).
+ (when (numberp (cddr marks))
+ (setcdr marks (list (cdr marks))))
+ (setq articles (cdr marks))
+ (while (and articles
+ (or (and (consp (car articles))
+ (> min (cdar articles)))
+ (and (numberp (car articles))
+ (> min (car articles)))))
+ (pop articles))
+ (set var articles))
+ ((eq mark 'unexist)
+ (set var (cdr marks)))))))))
+
+(defun gnus-update-missing-marks (missing)
+ "Go through the list of MISSING articles and remove them from the mark lists."
+ (when missing
+ (let (var m)
+ ;; Go through all types.
+ (dolist (elem gnus-article-mark-lists)
+ (when (eq (gnus-article-mark-to-type (cdr elem)) 'list)
+ (setq var (intern (format "gnus-newsgroup-%s" (car elem))))
+ (when (symbol-value var)
+ ;; This list has articles. So we delete all missing
+ ;; articles from it.
+ (setq m missing)
+ (while m
+ (set var (delq (pop m) (symbol-value var))))))))))
+
+(defun gnus-update-marks ()
+ "Enter the various lists of marked articles into the newsgroup info list."
+ (let ((types gnus-article-mark-lists)
+ (info (gnus-get-info gnus-newsgroup-name))
+ type list newmarked symbol delta-marks)
+ (when info
+ ;; Add all marks lists to the list of marks lists.
+ (while (setq type (pop types))
+ (setq list (symbol-value
+ (setq symbol
+ (intern (format "gnus-newsgroup-%s" (car type))))))
+
+ (when list
+ ;; Get rid of the entries of the articles that have the
+ ;; default score.
+ (when (and (eq (cdr type) 'score)
+ gnus-save-score
+ list)
+ (let* ((arts list)
+ (prev (cons nil list))
+ (all prev))
+ (while arts
+ (if (or (not (consp (car arts)))
+ (= (cdar arts) gnus-summary-default-score))
+ (setcdr prev (cdr arts))
+ (setq prev arts))
+ (setq arts (cdr arts)))
+ (setq list (cdr all)))))
+
+ (when (eq (cdr type) 'seen)
+ (setq list (gnus-range-add list gnus-newsgroup-unseen)))
+
+ (when (eq (gnus-article-mark-to-type (cdr type)) 'list)
+ (setq list (gnus-compress-sequence (set symbol (sort list '<)) t)))
+
+ (when (and (gnus-check-backend-function
+ 'request-set-mark gnus-newsgroup-name)
+ (not (gnus-article-unpropagatable-p (cdr type))))
+ (let* ((old (cdr (assq (cdr type) (gnus-info-marks info))))
+ ;; Don't do anything about marks for articles we
+ ;; didn't actually get any headers for.
+ (del
+ (gnus-list-range-intersection
+ gnus-newsgroup-articles
+ (gnus-remove-from-range (gnus-copy-sequence old) list)))
+ (add
+ (gnus-list-range-intersection
+ gnus-newsgroup-articles
+ (gnus-remove-from-range
+ (gnus-copy-sequence list) old))))
+ (when add
+ (push (list add 'add (list (cdr type))) delta-marks))
+ (when del
+ ;; Don't delete marks from outside the active range.
+ ;; This shouldn't happen, but is a sanity check.
+ (setq del (gnus-sorted-range-intersection
+ (gnus-active gnus-newsgroup-name) del))
+ (push (list del 'del (list (cdr type))) delta-marks))))
+
+ (when (or list
+ (eq (cdr type) 'unexist))
+ (push (cons (cdr type) list) newmarked)))
+
+ (when delta-marks
+ (unless (gnus-check-group gnus-newsgroup-name)
+ (error "Can't open server for %s" gnus-newsgroup-name))
+ (gnus-request-set-mark gnus-newsgroup-name delta-marks))
+
+ ;; Enter these new marks into the info of the group.
+ (if (nthcdr 3 info)
+ (setcar (nthcdr 3 info) newmarked)
+ ;; Add the marks lists to the end of the info.
+ (when newmarked
+ (setcdr (nthcdr 2 info) (list newmarked))))
+
+ ;; Cut off the end of the info if there's nothing else there.
+ (let ((i 5))
+ (while (and (> i 2)
+ (not (nth i info)))
+ (when (nthcdr (decf i) info)
+ (setcdr (nthcdr i info) nil)))))))
+
+(defun gnus-set-mode-line (where)
+ "Set the mode line of the article or summary buffers.
+If WHERE is `summary', the summary mode line format will be used."
+ ;; Is this mode line one we keep updated?
+ (when (and (memq where gnus-updated-mode-lines)
+ (symbol-value
+ (intern (format "gnus-%s-mode-line-format-spec" where))))
+ (let (mode-string)
+ ;; We evaluate this in the summary buffer since these
+ ;; variables are buffer-local to that buffer.
+ (with-current-buffer gnus-summary-buffer
+ ;; We bind all these variables that are used in the `eval' form
+ ;; below.
+ (let* ((mformat (symbol-value
+ (intern
+ (format "gnus-%s-mode-line-format-spec" where))))
+ (gnus-tmp-group-name (gnus-mode-string-quote
+ (gnus-group-decoded-name
+ gnus-newsgroup-name)))
+ (gnus-tmp-article-number (or gnus-current-article 0))
+ (gnus-tmp-unread gnus-newsgroup-unreads)
+ (gnus-tmp-unread-and-unticked (length gnus-newsgroup-unreads))
+ (gnus-tmp-unselected (length gnus-newsgroup-unselected))
+ (gnus-tmp-unread-and-unselected
+ (cond ((and (zerop gnus-tmp-unread-and-unticked)
+ (zerop gnus-tmp-unselected))
+ "")
+ ((zerop gnus-tmp-unselected)
+ (format "{%d more}" gnus-tmp-unread-and-unticked))
+ (t (format "{%d(+%d) more}"
+ gnus-tmp-unread-and-unticked
+ gnus-tmp-unselected))))
+ (gnus-tmp-subject
+ (if (and gnus-current-headers
+ (vectorp gnus-current-headers))
+ (gnus-mode-string-quote
+ (mail-header-subject gnus-current-headers))
+ ""))
+ bufname-length max-len
+ gnus-tmp-header) ;; passed as argument to any user-format-funcs
+ (setq mode-string (eval mformat))
+ (setq bufname-length (if (string-match "%b" mode-string)
+ (- (length
+ (buffer-name
+ (if (eq where 'summary)
+ nil
+ (get-buffer gnus-article-buffer))))
+ 2)
+ 0))
+ (setq max-len (max 4 (if gnus-mode-non-string-length
+ (- (window-width)
+ gnus-mode-non-string-length
+ bufname-length)
+ (length mode-string))))
+ ;; We might have to chop a bit of the string off...
+ (when (> (length mode-string) max-len)
+ (setq mode-string
+ (concat (truncate-string-to-width mode-string (- max-len 3))
+ "...")))))
+ ;; Update the mode line.
+ (setq mode-line-buffer-identification
+ (gnus-mode-line-buffer-identification (list 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* ((virtual (gnus-virtual-group-p from-newsgroup))
+ (prefix (if virtual "" (gnus-group-real-prefix from-newsgroup)))
+ (xref-hashtb (gnus-make-hashtable))
+ start group entry number xrefs header)
+ (while headers
+ (setq header (pop headers))
+ (when (and (setq xrefs (mail-header-xref header))
+ (not (memq (setq number (mail-header-number header))
+ unreads)))
+ (setq start 0)
+ (while (string-match "\\([^ ]+\\)[:/]\\([0-9]+\\)" xrefs start)
+ (setq start (match-end 0))
+ (setq group (if prefix
+ (concat prefix (substring xrefs (match-beginning 1)
+ (match-end 1)))
+ (substring xrefs (match-beginning 1) (match-end 1))))
+ (setq number
+ (string-to-number (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)))))
+ (and start xref-hashtb)))
+
+(defun gnus-mark-xrefs-as-read (from-newsgroup headers unreads)
+ "Look through all the headers and mark the Xrefs as read."
+ (let ((virtual (gnus-virtual-group-p from-newsgroup))
+ name info xref-hashtb idlist method nth4)
+ (with-current-buffer gnus-group-buffer
+ (when (setq xref-hashtb
+ (gnus-create-xref-hashtb from-newsgroup headers unreads))
+ (mapatoms
+ (lambda (group)
+ (unless (string= from-newsgroup (setq name (symbol-name group)))
+ (setq idlist (symbol-value group))
+ ;; Dead groups are not updated.
+ (and (prog1
+ (setq info (gnus-get-info name))
+ (when (stringp (setq nth4 (gnus-info-method 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.
+ (<= (gnus-info-level info) gnus-level-subscribed))
+ (gnus-group-make-articles-read name idlist))))
+ xref-hashtb)))))
+
+(defun gnus-compute-read-articles (group articles)
+ (let* ((entry (gnus-group-entry group))
+ (info (nth 2 entry))
+ (active (gnus-active group))
+ ninfo)
+ (when entry
+ ;; First peel off all invalid article numbers.
+ (when active
+ (let ((ids articles)
+ id first)
+ (while (setq id (pop ids))
+ (when (and first (> id (cdr active)))
+ ;; 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)))
+ (when (or (> id (cdr active))
+ (< id (car active)))
+ (setq articles (delq id articles))))))
+ ;; If the read list is nil, we init it.
+ (if (and active
+ (null (gnus-info-read info))
+ (> (car active) 1))
+ (setq ninfo (cons 1 (1- (car active))))
+ (setq ninfo (gnus-info-read info)))
+ ;; Then we add the read articles to the range.
+ (gnus-add-to-range
+ ninfo (setq articles (sort articles '<))))))
+
+(defun gnus-group-make-articles-read (group articles)
+ "Update the info of GROUP to say that ARTICLES are read."
+ (let* ((num 0)
+ (entry (gnus-group-entry group))
+ (info (nth 2 entry))
+ (active (gnus-active group))
+ (set-marks
+ (gnus-method-option-p
+ (gnus-find-method-for-group group)
+ 'server-marks))
+ range)
+ (if (not entry)
+ ;; Group that Gnus doesn't know exists, but still allow the
+ ;; backend to set marks.
+ (when set-marks
+ (gnus-request-set-mark
+ group (list (list (gnus-compress-sequence (sort articles #'<))
+ 'add '(read)))))
+ ;; Normal, subscribed groups.
+ (setq range (gnus-compute-read-articles group articles))
+ (with-current-buffer gnus-group-buffer
+ (gnus-undo-register
+ `(progn
+ (gnus-info-set-marks ',info ',(gnus-info-marks info) t)
+ (gnus-info-set-read ',info ',(gnus-info-read info))
+ (gnus-get-unread-articles-in-group ',info (gnus-active ,group))
+ (when ,set-marks
+ (gnus-request-set-mark
+ ,group (list (list ',range 'del '(read)))))
+ (gnus-group-update-group ,group t))))
+ ;; Add the read articles to the range.
+ (gnus-info-set-read info range)
+ (when set-marks
+ (gnus-request-set-mark group (list (list range 'add '(read)))))
+ ;; Then we have to re-compute how many unread
+ ;; articles there are in this group.
+ (when active
+ (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+ (cdar range)) (caar range)))))
+ (setq range (cdr range)))
+ (setq num (- (cdr active) num))))
+ ;; Update the number of unread articles.
+ (setcar entry num)
+ ;; Update the group buffer.
+ (unless (gnus-ephemeral-group-p group)
+ (gnus-group-update-group group t))))))
+
+(defun gnus-get-newsgroup-headers (&optional dependencies force-new)
+ (let ((cur nntp-server-buffer)
+ (dependencies
+ (or dependencies
+ (with-current-buffer gnus-summary-buffer
+ gnus-newsgroup-dependencies)))
+ headers id end ref number
+ (mail-parse-charset gnus-newsgroup-charset)
+ (mail-parse-ignored-charsets
+ (save-current-buffer (condition-case nil
+ (set-buffer gnus-summary-buffer)
+ (error))
+ gnus-newsgroup-ignored-charsets)))
+ (with-current-buffer nntp-server-buffer
+ ;; Translate all TAB characters into SPACE characters.
+ (subst-char-in-region (point-min) (point-max) ?\t ? t)
+ (subst-char-in-region (point-min) (point-max) ?\r ? t)
+ (ietf-drums-unfold-fws)
+ (gnus-run-hooks 'gnus-parse-headers-hook)
+ (let ((case-fold-search t)
+ in-reply-to header p lines chars)
+ (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)
+ (setq id nil
+ ref nil)
+ ;; 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 go hand in hand.
+ (setq
+ header
+ (vector
+ ;; Number.
+ (prog1
+ (setq number (read cur))
+ (end-of-line)
+ (setq p (point))
+ (narrow-to-region (point)
+ (or (and (search-forward "\n.\n" nil t)
+ (- (point) 2))
+ (point))))
+ ;; Subject.
+ (progn
+ (goto-char p)
+ (if (search-forward "\nsubject:" nil t)
+ (funcall gnus-decode-encoded-word-function
+ (nnheader-header-value))
+ "(none)"))
+ ;; From.
+ (progn
+ (goto-char p)
+ (if (search-forward "\nfrom:" nil t)
+ (funcall gnus-decode-encoded-address-function
+ (nnheader-header-value))
+ "(nobody)"))
+ ;; Date.
+ (progn
+ (goto-char p)
+ (if (search-forward "\ndate:" nil t)
+ (nnheader-header-value) ""))
+ ;; Message-ID.
+ (progn
+ (goto-char p)
+ (setq id (if (re-search-forward
+ "^message-id: *\\(<[^\n\t> ]+>\\)" nil t)
+ ;; We do it this way to make sure the Message-ID
+ ;; is (somewhat) syntactically valid.
+ (buffer-substring (match-beginning 1)
+ (match-end 1))
+ ;; If there was no message-id, we just fake one
+ ;; to make subsequent routines simpler.
+ (nnheader-generate-fake-message-id number))))
+ ;; References.
+ (progn
+ (goto-char p)
+ (if (search-forward "\nreferences:" nil t)
+ (progn
+ (setq end (point))
+ (prog1
+ (nnheader-header-value)
+ (setq ref
+ (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
+ ;; were no references and the in-reply-to header looks
+ ;; promising.
+ (if (and (search-forward "\nin-reply-to:" nil t)
+ (setq in-reply-to (nnheader-header-value))
+ (string-match "<[^>]+>" in-reply-to))
+ (let (ref2)
+ (setq ref (substring in-reply-to (match-beginning 0)
+ (match-end 0)))
+ (while (string-match "<[^>]+>" in-reply-to (match-end 0))
+ (setq ref2 (substring in-reply-to (match-beginning 0)
+ (match-end 0)))
+ (when (> (length ref2) (length ref))
+ (setq ref ref2)))
+ ref)
+ (setq ref nil))))
+ ;; Chars.
+ (progn
+ (goto-char p)
+ (if (search-forward "\nchars: " nil t)
+ (if (numberp (setq chars (ignore-errors (read cur))))
+ chars -1)
+ -1))
+ ;; Lines.
+ (progn
+ (goto-char p)
+ (if (search-forward "\nlines: " nil t)
+ (if (numberp (setq lines (ignore-errors (read cur))))
+ lines -1)
+ -1))
+ ;; Xref.
+ (progn
+ (goto-char p)
+ (and (search-forward "\nxref:" nil t)
+ (nnheader-header-value)))
+ ;; Extra.
+ (when gnus-extra-headers
+ (let ((extra gnus-extra-headers)
+ out)
+ (while extra
+ (goto-char p)
+ (when (search-forward
+ (concat "\n" (symbol-name (car extra)) ":") nil t)
+ (push (cons (car extra) (nnheader-header-value))
+ out))
+ (pop extra))
+ out))))
+ (when (equal id ref)
+ (setq ref nil))
+
+ (when gnus-alter-header-function
+ (funcall gnus-alter-header-function header)
+ (setq id (mail-header-id header)
+ ref (gnus-parent-id (mail-header-references header))))
+
+ (when (setq header
+ (gnus-dependencies-add-header
+ header dependencies force-new))
+ (push header headers))
+ (goto-char (point-max))
+ (widen))
+ (nreverse headers)))))
+
+;; Goes through the xover lines and returns a list of vectors
+(defun gnus-get-newsgroup-headers-xover (sequence &optional
+ force-new dependencies
+ group also-fetch-heads)
+ "Parse the news overview data in the server buffer.
+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 ((mail-parse-charset gnus-newsgroup-charset)
+ (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
+ (cur nntp-server-buffer)
+ (dependencies (or dependencies gnus-newsgroup-dependencies))
+ (allp (cond
+ ((eq gnus-read-all-available-headers t)
+ t)
+ ((and (stringp gnus-read-all-available-headers)
+ group)
+ (string-match gnus-read-all-available-headers group))
+ (t
+ nil)))
+ number headers header)
+ (with-current-buffer nntp-server-buffer
+ (subst-char-in-region (point-min) (point-max) ?\r ? t)
+ ;; Allow the user to mangle the headers before parsing them.
+ (gnus-run-hooks 'gnus-parse-headers-hook)
+ (goto-char (point-min))
+ (gnus-parse-without-error
+ (while (and (or sequence allp)
+ (not (eobp)))
+ (setq number (read cur))
+ (when (not allp)
+ (while (and sequence
+ (< (car sequence) number))
+ (setq sequence (cdr sequence))))
+ (when (and (or allp
+ (and sequence
+ (eq number (car sequence))))
+ (progn
+ (setq sequence (cdr sequence))
+ (setq header (inline
+ (gnus-nov-parse-line
+ number dependencies force-new)))))
+ (push header headers))
+ (forward-line 1)))
+ ;; A common bug in inn is that if you have posted an article and
+ ;; then retrieves the active file, it will answer correctly --
+ ;; the new article is included. However, a NOV entry for the
+ ;; article may not have been generated yet, so this may fail.
+ ;; We work around this problem by retrieving the last few
+ ;; headers using HEAD.
+ (if (or (not also-fetch-heads)
+ (not sequence))
+ ;; We (probably) got all the headers.
+ (nreverse headers)
+ (let ((gnus-nov-is-evil t))
+ (nconc
+ (nreverse headers)
+ (when (eq (gnus-retrieve-headers sequence group) 'headers)
+ (gnus-get-newsgroup-headers))))))))
+
+(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 (with-current-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
+ (nnheader-narrow-to-headers)
+ (goto-char (point-min))
+ (when (or (and (not (eobp))
+ (eq (downcase (char-after)) ?x)
+ (looking-at "Xref:"))
+ (search-forward "\nXref:" nil t))
+ (goto-char (1+ (match-end 0)))
+ (setq xref (buffer-substring (point) (point-at-eol)))
+ (mail-header-set-xref headers xref)))))))
+
+(defun gnus-summary-insert-subject (id &optional old-header use-old-header)
+ "Find article ID and insert the summary line for that article.
+OLD-HEADER can either be a header or a line number to insert
+the subject line on.
+If USE-OLD-HEADER is non-nil, then OLD-HEADER should be a header,
+and OLD-HEADER will be used when the summary line is inserted,
+too, instead of trying to fetch new headers."
+ (let* ((line (and (numberp old-header) old-header))
+ (old-header (and (vectorp old-header) old-header))
+ (header (cond ((and old-header use-old-header)
+ old-header)
+ ((and (numberp id)
+ (gnus-number-to-header id))
+ (gnus-number-to-header id))
+ (t
+ (gnus-read-header id))))
+ (number (and (numberp id) id))
+ d)
+ (when header
+ ;; Rebuild the thread that this article is part of and go to the
+ ;; article we have fetched.
+ (when (and (not gnus-show-threads)
+ old-header)
+ (when (and number
+ (setq d (gnus-data-find (mail-header-number old-header))))
+ (goto-char (gnus-data-pos d))
+ (gnus-data-remove
+ number
+ (- (point-at-bol)
+ (prog1
+ (1+ (point-at-eol))
+ (gnus-delete-line))))))
+ ;; Remove list identifiers from subject.
+ (let ((gnus-newsgroup-headers (list header)))
+ (gnus-summary-remove-list-identifiers))
+ (when old-header
+ (mail-header-set-number header (mail-header-number old-header)))
+ (setq gnus-newsgroup-sparse
+ (delq (setq number (mail-header-number header))
+ gnus-newsgroup-sparse))
+ (setq gnus-newsgroup-ancient (delq number gnus-newsgroup-ancient))
+ (push number gnus-newsgroup-limit)
+ (gnus-rebuild-thread (mail-header-id header) line)
+ (gnus-summary-goto-subject number nil t))
+ (when (and (numberp number)
+ (> number 0))
+ ;; We have to update the boundaries even if we can't fetch the
+ ;; article if ID is a number -- so that the next `P' or `N'
+ ;; command will fetch the previous (or next) article even
+ ;; if the one we tried to fetch this time has been canceled.
+ (unless (and gnus-newsgroup-end (< number gnus-newsgroup-end))
+ (setq gnus-newsgroup-end number))
+ (unless (and gnus-newsgroup-begin (> number gnus-newsgroup-begin))
+ (setq gnus-newsgroup-begin number))
+ (setq gnus-newsgroup-unselected
+ (delq number gnus-newsgroup-unselected)))
+ ;; Report back a success?
+ (and header (mail-header-number header))))
+
+;;; Process/prefix in the summary buffer
+
+(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."
+ (with-current-buffer gnus-summary-buffer
+ (cond
+ (n
+ ;; A numerical prefix has been given.
+ (setq n (prefix-numeric-value n))
+ (let ((backward (< n 0))
+ (n (abs (prefix-numeric-value n)))
+ articles article)
+ (save-excursion
+ (while
+ (and (> n 0)
+ (push (setq article (gnus-summary-article-number))
+ articles)
+ (if backward
+ (gnus-summary-find-prev nil article)
+ (gnus-summary-find-next nil article)))
+ (decf n)))
+ (nreverse articles)))
+ ((and (gnus-region-active-p) (mark))
+ (message "region active")
+ ;; Work on the region between point and mark.
+ (let ((max (max (point) (mark)))
+ articles article)
+ (save-excursion
+ (goto-char (min (point) (mark)))
+ (while
+ (and
+ (push (setq article (gnus-summary-article-number)) articles)
+ (gnus-summary-find-next nil article)
+ (< (point) max)))
+ (nreverse articles))))
+ (gnus-newsgroup-processable
+ ;; There are process-marked articles present.
+ ;; Save current state.
+ (gnus-summary-save-process-mark)
+ ;; Return the list.
+ (reverse gnus-newsgroup-processable))
+ (t
+ ;; Just return the current article.
+ (list (gnus-summary-article-number))))))
+
+(defmacro gnus-summary-iterate (arg &rest forms)
+ "Iterate over the process/prefixed articles and do FORMS.
+ARG is the interactive prefix given to the command. FORMS will be
+executed with point over the summary line of the articles."
+ (let ((articles (make-symbol "gnus-summary-iterate-articles")))
+ `(let ((,articles (gnus-summary-work-articles ,arg)))
+ (while ,articles
+ (gnus-summary-goto-subject (car ,articles))
+ ,@forms
+ (pop ,articles)))))
+
+(put 'gnus-summary-iterate 'lisp-indent-function 1)
+(put 'gnus-summary-iterate 'edebug-form-spec '(form body))
+
+(defun gnus-summary-save-process-mark ()
+ "Push the current set of process marked articles on the stack."
+ (interactive)
+ (push (copy-sequence gnus-newsgroup-processable)
+ gnus-newsgroup-process-stack))
+
+(defun gnus-summary-kill-process-mark ()
+ "Push the current set of process marked articles on the stack and unmark."
+ (interactive)
+ (gnus-summary-save-process-mark)
+ (gnus-summary-unmark-all-processable))
+
+(defun gnus-summary-yank-process-mark ()
+ "Pop the last process mark state off the stack and restore it."
+ (interactive)
+ (unless gnus-newsgroup-process-stack
+ (error "Empty mark stack"))
+ (gnus-summary-process-mark-set (pop gnus-newsgroup-process-stack)))
+
+(defun gnus-summary-process-mark-set (set)
+ "Make SET into the current process marked articles."
+ (gnus-summary-unmark-all-processable)
+ (mapc 'gnus-summary-set-process-mark set))
+
+;;; Searching and stuff
+
+(defun gnus-summary-search-group (&optional backward use-level)
+ "Search for next unread newsgroup.
+If optional argument BACKWARD is non-nil, search backward instead."
+ (with-current-buffer gnus-group-buffer
+ (when (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."
+ (with-current-buffer gnus-group-buffer
+ (save-excursion
+ (gnus-group-best-unread-group exclude-group))))
+
+(defun gnus-summary-find-next (&optional unread article backward)
+ (if backward
+ (gnus-summary-find-prev unread article)
+ (let* ((dummy (gnus-summary-article-intangible-p))
+ (article (or article (gnus-summary-article-number)))
+ (data (gnus-data-find-list article))
+ result)
+ (when (and (not dummy)
+ (or (not gnus-summary-check-current)
+ (not unread)
+ (not (gnus-data-unread-p (car data)))))
+ (setq data (cdr data)))
+ (when (setq result
+ (if unread
+ (progn
+ (while data
+ (unless (memq (gnus-data-number (car data))
+ (cond
+ ((eq gnus-auto-goto-ignores
+ 'always-undownloaded)
+ gnus-newsgroup-undownloaded)
+ (gnus-plugged
+ nil)
+ ((eq gnus-auto-goto-ignores
+ 'unfetched)
+ gnus-newsgroup-unfetched)
+ ((eq gnus-auto-goto-ignores
+ 'undownloaded)
+ gnus-newsgroup-undownloaded)))
+ (when (gnus-data-unread-p (car data))
+ (setq result (car data)
+ data nil)))
+ (setq data (cdr data)))
+ result)
+ (car data)))
+ (goto-char (gnus-data-pos result))
+ (gnus-data-number result)))))
+
+(defun gnus-summary-find-prev (&optional unread article)
+ (let* ((eobp (eobp))
+ (article (or article (gnus-summary-article-number)))
+ (data (gnus-data-find-list article (gnus-data-list 'rev)))
+ result)
+ (when (and (not eobp)
+ (or (not gnus-summary-check-current)
+ (not unread)
+ (not (gnus-data-unread-p (car data)))))
+ (setq data (cdr data)))
+ (when (setq result
+ (if unread
+ (progn
+ (while data
+ (unless (memq (gnus-data-number (car data))
+ (cond
+ ((eq gnus-auto-goto-ignores
+ 'always-undownloaded)
+ gnus-newsgroup-undownloaded)
+ (gnus-plugged
+ nil)
+ ((eq gnus-auto-goto-ignores
+ 'unfetched)
+ gnus-newsgroup-unfetched)
+ ((eq gnus-auto-goto-ignores
+ 'undownloaded)
+ gnus-newsgroup-undownloaded)))
+ (when (gnus-data-unread-p (car data))
+ (setq result (car data)
+ data nil)))
+ (setq data (cdr data)))
+ result)
+ (car data)))
+ (goto-char (gnus-data-pos result))
+ (gnus-data-number result))))
+
+(defun gnus-summary-find-subject (subject &optional unread backward article)
+ (let* ((simp-subject (gnus-simplify-subject-fully subject))
+ (article (or article (gnus-summary-article-number)))
+ (articles (gnus-data-list backward))
+ (arts (gnus-data-find-list article articles))
+ result)
+ (when (or (not gnus-summary-check-current)
+ (not unread)
+ (not (gnus-data-unread-p (car arts))))
+ (setq arts (cdr arts)))
+ (while arts
+ (and (or (not unread)
+ (gnus-data-unread-p (car arts)))
+ (vectorp (gnus-data-header (car arts)))
+ (gnus-subject-equal
+ simp-subject (mail-header-subject (gnus-data-header (car arts))) t)
+ (setq result (car arts)
+ arts nil))
+ (setq arts (cdr arts)))
+ (and result
+ (goto-char (gnus-data-pos result))
+ (gnus-data-number result))))
+
+(defun gnus-summary-search-forward (&optional unread subject backward)
+ "Search forward for an article.
+If UNREAD, look for unread articles. If SUBJECT, look for
+articles with that subject. If BACKWARD, search backward instead."
+ (cond (subject (gnus-summary-find-subject subject unread backward))
+ (backward (gnus-summary-find-prev unread))
+ (t (gnus-summary-find-next unread))))
+
+(defun gnus-recenter (&optional n)
+ "Center point in window and redisplay frame.
+Also do horizontal recentering."
+ (interactive "P")
+ (when (and gnus-auto-center-summary
+ (not (eq gnus-auto-center-summary 'vertical)))
+ (gnus-horizontal-recenter))
+ (if (fboundp 'recenter-top-bottom)
+ (recenter-top-bottom n)
+ (recenter n)))
+
+(put 'gnus-recenter 'isearch-scroll t)
+
+(defun gnus-forward-line-ignore-invisible (n)
+ "Move N lines forward (backward if N is negative).
+Like forward-line, but skip over (and don't count) invisible lines."
+ (let (done)
+ (while (and (> n 0) (not done))
+ ;; If the following character is currently invisible,
+ ;; skip all characters with that same `invisible' property value.
+ (while (gnus-invisible-p (point))
+ (goto-char (gnus-next-char-property-change (point))))
+ (forward-line 1)
+ (if (eobp)
+ (setq done t)
+ (setq n (1- n))))
+ (while (and (< n 0) (not done))
+ (forward-line -1)
+ (if (bobp) (setq done t)
+ (setq n (1+ n))
+ (while (and (not (bobp)) (gnus-invisible-p (1- (point))))
+ (goto-char (gnus-previous-char-property-change (point))))))))
+
+(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.
+ (interactive)
+ ;; The user has to want it.
+ (when gnus-auto-center-summary
+ (let* ((top (cond ((< (window-height) 4) 0)
+ ((< (window-height) 7) 1)
+ (t (if (numberp gnus-auto-center-summary)
+ gnus-auto-center-summary
+ (/ (1- (window-height)) 2)))))
+ (height (1- (window-height)))
+ (bottom (save-excursion
+ (goto-char (point-max))
+ (gnus-forward-line-ignore-invisible (- height))
+ (point)))
+ (window (get-buffer-window (current-buffer))))
+ (when (get-buffer-window gnus-article-buffer)
+ ;; Only do recentering when the article buffer is displayed,
+ ;; 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.
+ (let ((top-pos (save-excursion
+ (gnus-forward-line-ignore-invisible (- top))
+ (point))))
+ (if (> bottom top-pos)
+ ;; Keep the second line from the top visible
+ (set-window-start window top-pos)
+ ;; Try to keep the bottom line visible; if it's partially
+ ;; obscured, either scroll one more line to make it fully
+ ;; visible, or revert to using TOP-POS.
+ (save-excursion
+ (goto-char (point-max))
+ (gnus-forward-line-ignore-invisible -1)
+ (let ((last-line-start (point)))
+ (goto-char bottom)
+ (set-window-start window (point) t)
+ (when (not (pos-visible-in-window-p last-line-start window))
+ (gnus-forward-line-ignore-invisible 1)
+ (set-window-start window (min (point) top-pos) t)))))))
+ ;; Do horizontal recentering while we're at it.
+ (when (and (get-buffer-window (current-buffer) t)
+ (not (eq gnus-auto-center-summary 'vertical)))
+ (let ((selected (selected-window)))
+ (select-window (get-buffer-window (current-buffer) t))
+ (gnus-summary-position-point)
+ (gnus-horizontal-recenter)
+ (select-window selected))))))
+
+(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.
+ (when (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 0)
+ (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 (gnus-info-read (gnus-get-info group)))
+ (active (or (gnus-active group) (gnus-activate-group group)))
+ (last (or (cdr active)
+ (error "Group %s couldn't be activated " group)))
+ (bottom (if gnus-newsgroup-maximum-articles
+ (max (car active)
+ (- last gnus-newsgroup-maximum-articles -1))
+ (car active)))
+ first nlast unread)
+ ;; If none are read, then all are unread.
+ (if (not read)
+ (setq first bottom)
+ ;; 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 (and (not (listp (cdr read)))
+ (or (< (car read) bottom)
+ (progn (setq read (list read))
+ nil)))
+ (setq first (max bottom (1+ (cdr read))))
+ ;; `read' is a list of ranges.
+ (when (/= (setq nlast (or (and (numberp (car read)) (car read))
+ (caar read)))
+ 1)
+ (setq first bottom))
+ (while read
+ (when first
+ (while (< first nlast)
+ (setq unread (cons first unread)
+ first (1+ first))))
+ (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
+ (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
+ (setq read (cdr read)))))
+ ;; And add the last unread articles.
+ (while (<= first last)
+ (setq unread (cons first unread)
+ first (1+ first)))
+ ;; Return the list of unread articles.
+ (delq 0 (nreverse unread))))
+
+(defun gnus-list-of-read-articles (group)
+ "Return a list of unread, unticked and non-dormant articles."
+ (let* ((info (gnus-get-info group))
+ (marked (gnus-info-marks info))
+ (active (gnus-active group)))
+ (and info active
+ (gnus-list-range-difference
+ (gnus-list-range-difference
+ (gnus-sorted-complement
+ (gnus-uncompress-range
+ (if gnus-newsgroup-maximum-articles
+ (cons (max (car active)
+ (- (cdr active)
+ gnus-newsgroup-maximum-articles
+ -1))
+ (cdr active))
+ active))
+ (gnus-list-of-unread-articles group))
+ (cdr (assq 'dormant marked)))
+ (cdr (assq 'tick marked))))))
+
+;; This function returns a sequence of article numbers based on the
+;; difference between the ranges of read articles in this group and
+;; the range of active articles.
+(defun gnus-sequence-of-unread-articles (group)
+ (let* ((read (gnus-info-read (gnus-get-info group)))
+ (active (or (gnus-active group) (gnus-activate-group group)))
+ (last (cdr active))
+ (bottom (if gnus-newsgroup-maximum-articles
+ (max (car active)
+ (- last gnus-newsgroup-maximum-articles -1))
+ (car active)))
+ first nlast unread)
+ ;; If none are read, then all are unread.
+ (if (not read)
+ (setq first bottom)
+ ;; 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 (and (not (listp (cdr read)))
+ (or (< (car read) bottom)
+ (progn (setq read (list read))
+ nil)))
+ (setq first (max bottom (1+ (cdr read))))
+ ;; `read' is a list of ranges.
+ (when (/= (setq nlast (or (and (numberp (car read)) (car read))
+ (caar read)))
+ 1)
+ (setq first bottom))
+ (while read
+ (when first
+ (push (cons first nlast) unread))
+ (setq first (1+ (if (atom (car read)) (car read) (cdar read))))
+ (setq nlast (if (atom (cadr read)) (cadr read) (caadr read)))
+ (setq read (cdr read)))))
+ ;; And add the last unread articles.
+ (cond ((not (and first last))
+ nil)
+ ((< first last)
+ (push (cons first last) unread))
+ ((= first last)
+ (push first unread)))
+ ;; Return the sequence of unread articles.
+ (delq 0 (nreverse unread))))
+
+;; Various summary commands
+
+(defun gnus-summary-select-article-buffer ()
+ "Reconfigure windows to show the article buffer.
+If `gnus-widen-article-window' is set, show only the article
+buffer."
+ (interactive)
+ (if (not (gnus-buffer-live-p gnus-article-buffer))
+ (error "There is no article buffer for this summary buffer")
+ (unless (get-buffer-window gnus-article-buffer)
+ (gnus-summary-show-article))
+ (gnus-configure-windows
+ (if gnus-widen-article-window
+ 'only-article
+ 'article)
+ t)
+ (select-window (get-buffer-window gnus-article-buffer))))
+
+(defun gnus-summary-universal-argument (arg)
+ "Perform any operation on all articles that are process/prefixed."
+ (interactive "P")
+ (let ((articles (gnus-summary-work-articles arg))
+ func article)
+ (if (eq
+ (setq
+ func
+ (key-binding
+ (read-key-sequence
+ (substitute-command-keys
+ "\\<gnus-summary-mode-map>\\[gnus-summary-universal-argument]"))))
+ 'undefined)
+ (gnus-error 1 "Undefined key")
+ (save-excursion
+ (while articles
+ (gnus-summary-goto-subject (setq article (pop articles)))
+ (let (gnus-newsgroup-processable)
+ (command-execute func))
+ (gnus-summary-remove-process-mark article)))))
+ (gnus-summary-position-point))
+
+(defun gnus-summary-toggle-truncation (&optional arg)
+ "Toggle truncation of summary lines.
+With ARG, turn line truncation on if ARG is positive."
+ (interactive "P")
+ (setq truncate-lines
+ (if (null arg) (not truncate-lines)
+ (> (prefix-numeric-value arg) 0)))
+ (redraw-display))
+
+(defun gnus-summary-find-for-reselect ()
+ "Return the number of an article to stay on across a reselect.
+The current article is considered, then following articles, then previous
+articles. An article is sought which is not canceled and isn't a temporary
+insertion from another group. If there's no such then return a dummy 0."
+ (let (found)
+ (dolist (rev '(nil t))
+ (unless found ; don't demand the reverse list if we don't need it
+ (let ((data (gnus-data-find-list
+ (gnus-summary-article-number) (gnus-data-list rev))))
+ (while (and data (not found))
+ (if (and (< 0 (gnus-data-number (car data)))
+ (not (eq gnus-canceled-mark (gnus-data-mark (car data)))))
+ (setq found (gnus-data-number (car data))))
+ (setq data (cdr data))))))
+ (or found 0)))
+
+(defun gnus-summary-reselect-current-group (&optional all rescan)
+ "Exit and then reselect the current newsgroup.
+The prefix argument ALL means to select all articles."
+ (interactive "P")
+ (when (gnus-ephemeral-group-p gnus-newsgroup-name)
+ (error "Ephemeral groups can't be reselected"))
+ (let ((current-subject (gnus-summary-find-for-reselect))
+ (group gnus-newsgroup-name))
+ (setq gnus-newsgroup-begin nil)
+ (gnus-summary-exit nil 'leave-hidden)
+ ;; We have to adjust the point of group mode buffer because
+ ;; point was moved to the next unread newsgroup by exiting.
+ (gnus-summary-jump-to-group group)
+ (when rescan
+ (save-excursion
+ (gnus-group-get-new-news-this-group 1)))
+ (gnus-group-read-group all t)
+ (gnus-summary-goto-subject current-subject nil t)))
+
+(defun gnus-summary-rescan-group (&optional all)
+ "Exit the newsgroup, ask for new articles, and select the newsgroup."
+ (interactive "P")
+ (let ((config gnus-current-window-configuration))
+ (gnus-summary-reselect-current-group all t)
+ (gnus-configure-windows config)
+ (when (eq config 'article)
+ (gnus-summary-select-article))))
+
+(defun gnus-summary-update-info (&optional non-destructive)
+ (save-excursion
+ (let ((group gnus-newsgroup-name))
+ (when group
+ (when gnus-newsgroup-kill-headers
+ (setq gnus-newsgroup-killed
+ (gnus-compress-sequence
+ (gnus-sorted-union
+ (gnus-list-range-intersection
+ gnus-newsgroup-unselected gnus-newsgroup-killed)
+ gnus-newsgroup-unreads)
+ t)))
+ (unless (listp (cdr gnus-newsgroup-killed))
+ (setq gnus-newsgroup-killed (list gnus-newsgroup-killed)))
+ (let ((headers gnus-newsgroup-headers)
+ (ephemeral-p (gnus-ephemeral-group-p group))
+ info)
+ (unless ephemeral-p
+ (setq info (copy-sequence (gnus-get-info group))
+ info (delq (gnus-info-params info) info)))
+ ;; Set the new ranges of read articles.
+ (with-current-buffer gnus-group-buffer
+ (gnus-undo-force-boundary))
+ (gnus-update-read-articles
+ group (gnus-sorted-union
+ gnus-newsgroup-unreads gnus-newsgroup-unselected))
+ ;; Set the current article marks.
+ (let ((gnus-newsgroup-scored
+ (if (and (not gnus-save-score)
+ (not non-destructive))
+ nil
+ gnus-newsgroup-scored)))
+ (save-excursion
+ (gnus-update-marks)))
+ ;; Do the cross-ref thing.
+ (when gnus-use-cross-reference
+ (gnus-mark-xrefs-as-read group headers gnus-newsgroup-unreads))
+ ;; Do not switch windows but change the buffer to work.
+ (set-buffer gnus-group-buffer)
+ (unless ephemeral-p
+ (gnus-group-update-group
+ group nil
+ (equal info
+ (setq info (copy-sequence (gnus-get-info group))
+ info (delq (gnus-info-params info) info))))))))))
+
+(defun gnus-summary-save-newsrc (&optional force)
+ "Save the current number of read/marked articles in the dribble buffer.
+The dribble buffer will then be saved.
+If FORCE (the prefix), also save the .newsrc file(s)."
+ (interactive "P")
+ (gnus-summary-update-info t)
+ (if force
+ (gnus-save-newsrc-file)
+ (gnus-dribble-save)))
+
+(declare-function gnus-cache-write-active "gnus-cache" (&optional force))
+(declare-function gnus-article-stop-animations "gnus-art" ())
+
+(defun gnus-summary-exit (&optional temporary leave-hidden)
+ "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)
+ (when (gnus-buffer-live-p gnus-article-buffer)
+ (with-current-buffer gnus-article-buffer
+ (mm-destroy-parts gnus-article-mime-handles)
+ ;; Set it to nil for safety reason.
+ (setq gnus-article-mime-handle-alist nil)
+ (setq gnus-article-mime-handles nil)))
+ (gnus-kill-save-kill-buffer)
+ (gnus-async-halt-prefetch)
+ (let* ((group gnus-newsgroup-name)
+ (quit-config (gnus-group-quit-config gnus-newsgroup-name))
+ (gnus-group-is-exiting-p t)
+ (article-buffer gnus-article-buffer)
+ (original-article-buffer gnus-original-article-buffer)
+ (mode major-mode)
+ (group-point nil)
+ (buf (current-buffer))
+ ;; `gnus-single-article-buffer' is nil buffer-locally in
+ ;; ephemeral group of which summary buffer will be killed,
+ ;; but the global value may be non-nil.
+ (single-article-buffer gnus-single-article-buffer))
+ (unless quit-config
+ ;; Do adaptive scoring, and possibly save score files.
+ (when gnus-newsgroup-adaptive
+ (gnus-score-adaptive))
+ (when gnus-use-scoring
+ (gnus-score-save)))
+ (gnus-run-hooks 'gnus-summary-prepare-exit-hook)
+ (when gnus-use-cache
+ (gnus-cache-possibly-remove-articles)
+ (gnus-cache-save-buffers))
+ (gnus-async-prefetch-remove-group group)
+ (when gnus-suppress-duplicates
+ (gnus-dup-enter-articles))
+ (when gnus-use-trees
+ (gnus-tree-close))
+ (when gnus-use-cache
+ (gnus-cache-write-active))
+ ;; Remove entries for this group.
+ (nnmail-purge-split-history (gnus-group-real-name group))
+ ;; Make all changes in this group permanent.
+ (unless quit-config
+ (gnus-run-hooks 'gnus-exit-group-hook)
+ (gnus-summary-update-info))
+ (gnus-close-group group)
+ ;; Make sure where we were, and go to next newsgroup.
+ (when (buffer-live-p (get-buffer gnus-group-buffer))
+ (set-buffer gnus-group-buffer))
+ (unless quit-config
+ (gnus-group-jump-to-group group))
+ (gnus-run-hooks 'gnus-summary-exit-hook)
+ (unless (or quit-config
+ (not gnus-summary-next-group-on-exit)
+ ;; If this group has disappeared from the summary
+ ;; buffer, don't skip forwards.
+ (not (string= group (gnus-group-group-name))))
+ (gnus-group-next-unread-group 1))
+ (setq group-point (point))
+ (gnus-article-stop-animations)
+ (if temporary
+ nil ;Nothing to do.
+ (set-buffer buf)
+ (if (not gnus-kill-summary-on-exit)
+ (progn
+ (gnus-deaden-summary)
+ (setq mode nil))
+ (when (get-buffer gnus-article-buffer)
+ (bury-buffer gnus-article-buffer))
+ ;; Return to group mode buffer.
+ (when (eq mode 'gnus-summary-mode)
+ (gnus-kill-buffer buf)))
+
+ (setq gnus-current-select-method gnus-select-method)
+ (when (gnus-buffer-live-p gnus-group-buffer)
+ (set-buffer gnus-group-buffer))
+ (if quit-config
+ (gnus-handle-ephemeral-exit quit-config)
+ (goto-char group-point)
+ ;; If gnus-group-buffer is already displayed, make sure we also move
+ ;; the cursor in the window that displays it.
+ (let ((win (get-buffer-window (current-buffer) 0)))
+ (if win (set-window-point win (point))))
+ (unless leave-hidden
+ (gnus-configure-windows 'group 'force)))
+
+ ;; If we have several article buffers, we kill them at exit.
+ (unless single-article-buffer
+ (when (gnus-buffer-live-p article-buffer)
+ (with-current-buffer article-buffer
+ ;; Don't kill sticky article buffers
+ (unless (eq major-mode 'gnus-sticky-article-mode)
+ (gnus-kill-buffer article-buffer)
+ (setq gnus-article-current nil))))
+ (gnus-kill-buffer original-article-buffer))
+
+ ;; Clear the current group name.
+ (unless quit-config
+ (setq gnus-newsgroup-name nil)))))
+
+(declare-function gnus-stop-downloads "gnus-art" ())
+
+(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)
+ (let* ((group gnus-newsgroup-name)
+ (gnus-group-is-exiting-p t)
+ (gnus-group-is-exiting-without-update-p t)
+ (quit-config (gnus-group-quit-config group)))
+ (when (or no-questions
+ (gnus-ephemeral-group-p group)
+ gnus-expert-user
+ (gnus-y-or-n-p "Discard changes to this group and exit? "))
+ (gnus-async-halt-prefetch)
+ (run-hooks 'gnus-summary-prepare-exit-hook)
+ (when (gnus-buffer-live-p gnus-article-buffer)
+ (with-current-buffer gnus-article-buffer
+ (gnus-article-stop-animations)
+ (gnus-stop-downloads)
+ (mm-destroy-parts gnus-article-mime-handles)
+ ;; Set it to nil for safety reason.
+ (setq gnus-article-mime-handle-alist nil)
+ (setq gnus-article-mime-handles nil)))
+ ;; If we have several article buffers, we kill them at exit.
+ (unless gnus-single-article-buffer
+ (gnus-kill-buffer gnus-article-buffer)
+ (gnus-kill-buffer gnus-original-article-buffer)
+ (setq gnus-article-current nil))
+ ;; Return to the group buffer.
+ (if (not gnus-kill-summary-on-exit)
+ (progn
+ (gnus-deaden-summary)
+ (gnus-configure-windows 'group 'force))
+ (gnus-configure-windows 'group 'force)
+ (gnus-close-group group)
+ (gnus-kill-buffer gnus-summary-buffer))
+ (unless gnus-single-article-buffer
+ (setq gnus-article-current nil))
+ (when gnus-use-trees
+ (gnus-tree-close))
+ (gnus-async-prefetch-remove-group group)
+ (when (get-buffer gnus-article-buffer)
+ (bury-buffer gnus-article-buffer))
+ ;; Clear the current group name.
+ (setq gnus-newsgroup-name nil)
+ (unless (gnus-ephemeral-group-p group)
+ (gnus-group-update-group group nil t))
+ (when (equal (gnus-group-group-name) group)
+ (gnus-group-next-unread-group 1))
+ (gnus-article-stop-animations)
+ (when quit-config
+ (gnus-handle-ephemeral-exit quit-config)))))
+
+(defun gnus-handle-ephemeral-exit (quit-config)
+ "Handle movement when leaving an ephemeral group.
+The state which existed when entering the ephemeral is reset."
+ (if (not (buffer-live-p (car quit-config)))
+ (when (gnus-buffer-live-p gnus-group-buffer)
+ (gnus-configure-windows 'group 'force))
+ (set-buffer (car quit-config))
+ (unless (eq (cdr quit-config) 'group)
+ (setq gnus-current-select-method
+ (gnus-find-method-for-group gnus-newsgroup-name)))
+ (cond ((derived-mode-p 'gnus-summary-mode)
+ (gnus-set-global-variables))
+ ((derived-mode-p 'gnus-article-mode)
+ (save-current-buffer
+ ;; The `gnus-summary-buffer' variable may point
+ ;; to the old summary buffer when using a single
+ ;; article buffer.
+ (unless (gnus-buffer-live-p gnus-summary-buffer)
+ (set-buffer gnus-group-buffer))
+ (set-buffer gnus-summary-buffer)
+ (gnus-set-global-variables))))
+ (if (or (eq (cdr quit-config) 'article)
+ (eq (cdr quit-config) 'pick))
+ (if (and (boundp 'gnus-pick-mode) (symbol-value 'gnus-pick-mode))
+ (gnus-configure-windows 'pick 'force)
+ (gnus-configure-windows (cdr quit-config) 'force))
+ (gnus-configure-windows (cdr quit-config) 'force))
+ (when (derived-mode-p 'gnus-summary-mode)
+ (if (memq gnus-auto-select-on-ephemeral-exit '(next-noselect
+ next-unread-noselect))
+ (when (zerop (cond ((eq gnus-auto-select-on-ephemeral-exit
+ 'next-noselect)
+ (gnus-summary-next-subject 1 nil t))
+ ((eq gnus-auto-select-on-ephemeral-exit
+ 'next-unread-noselect)
+ (gnus-summary-next-subject 1 t t))))
+ ;; Hide the article buffer which displays the article different
+ ;; from the one that the cursor points to in the summary buffer.
+ (gnus-configure-windows 'summary 'force))
+ (cond ((eq gnus-auto-select-on-ephemeral-exit 'next)
+ (gnus-summary-next-subject 1))
+ ((eq gnus-auto-select-on-ephemeral-exit 'next-unread)
+ (gnus-summary-next-subject 1 t))))
+ (gnus-summary-recenter)
+ (gnus-summary-position-point))))
+
+;;; Dead summaries.
+
+(defvar gnus-dead-summary-mode-map
+ (let ((map (make-keymap)))
+ (suppress-keymap map)
+ (substitute-key-definition 'undefined 'gnus-summary-wake-up-the-dead map)
+ (dolist (key '("\C-d" "\r" "\177" [delete]))
+ (define-key map key 'gnus-summary-wake-up-the-dead))
+ (dolist (key '("q" "Q"))
+ (define-key map key 'bury-buffer))
+ map))
+
+(define-minor-mode gnus-dead-summary-mode
+ "Minor mode for Gnus summary buffers."
+ :lighter " Dead" :keymap gnus-dead-summary-mode-map
+ (unless (derived-mode-p 'gnus-summary-mode)
+ (setq gnus-dead-summary-mode nil)))
+
+(defun gnus-deaden-summary ()
+ "Make the current summary buffer into a dead summary buffer."
+ ;; Kill any previous dead summary buffer.
+ (when (and gnus-dead-summary
+ (buffer-name gnus-dead-summary))
+ (with-current-buffer gnus-dead-summary
+ (when gnus-dead-summary-mode
+ (kill-buffer (current-buffer)))))
+ ;; Make this the current dead summary.
+ (setq gnus-dead-summary (current-buffer))
+ (gnus-dead-summary-mode 1)
+ (let ((name (buffer-name)))
+ (when (string-match "Summary" name)
+ (rename-buffer
+ (concat (substring name 0 (match-beginning 0)) "Dead "
+ (substring name (match-beginning 0)))
+ t)
+ (bury-buffer))))
+
+(defun gnus-kill-or-deaden-summary (buffer)
+ "Kill or deaden the summary BUFFER."
+ (save-excursion
+ (when (and (buffer-name buffer)
+ (not gnus-single-article-buffer))
+ (with-current-buffer buffer
+ (gnus-kill-buffer gnus-article-buffer)
+ (gnus-kill-buffer gnus-original-article-buffer)))
+ (cond
+ ;; Kill the buffer.
+ (gnus-kill-summary-on-exit
+ (when (and gnus-use-trees
+ (gnus-buffer-exists-p buffer))
+ (with-current-buffer buffer
+ (gnus-tree-close)))
+ (gnus-kill-buffer buffer))
+ ;; Deaden the buffer.
+ ((gnus-buffer-exists-p buffer)
+ (with-current-buffer buffer
+ (gnus-deaden-summary))))))
+
+(defun gnus-summary-wake-up-the-dead (&rest args)
+ "Wake up the dead summary buffer."
+ (interactive)
+ (gnus-dead-summary-mode -1)
+ (let ((name (buffer-name)))
+ (when (string-match "Dead " name)
+ (rename-buffer
+ (concat (substring name 0 (match-beginning 0))
+ (substring name (match-end 0)))
+ t)))
+ (gnus-message 3 "This dead summary is now alive again"))
+
+;; 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 "%s" (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 TARGET-GROUP, go to this group. If BACKWARD, go to
+previous group instead."
+ (interactive "P")
+ ;; Stop pre-fetching.
+ (gnus-async-halt-prefetch)
+ (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)
+ (when (gnus-buffer-live-p current-buffer)
+ (set-buffer current-buffer)
+ (gnus-summary-exit))
+ (gnus-run-hooks 'gnus-group-no-more-groups-hook))
+ ;; 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
+ (and (buffer-name current-buffer) current-buffer)
+ nil backward))
+ (setq entered t)
+ (setq current-group target-group
+ target-group nil)))))))
+
+(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 undownloaded unseen)
+ "Go to the first subject satisfying any non-nil constraint.
+If UNREAD is non-nil, the article should be unread.
+If UNDOWNLOADED is non-nil, the article should be undownloaded.
+If UNSEEN is non-nil, the article should be unseen as well as unread.
+Returns the article selected or nil if there are no matching articles."
+ (interactive "P")
+ (cond
+ ;; Empty summary.
+ ((null gnus-newsgroup-data)
+ (gnus-message 3 "No articles in the group")
+ nil)
+ ;; Pick the first article.
+ ((not (or unread undownloaded unseen))
+ (goto-char (gnus-data-pos (car gnus-newsgroup-data)))
+ (gnus-data-number (car gnus-newsgroup-data)))
+ ;; Find the first unread article.
+ (t
+ (let ((data gnus-newsgroup-data))
+ (while (and data
+ (let ((num (gnus-data-number (car data))))
+ (or (memq num gnus-newsgroup-unfetched)
+ (not (or (and unread
+ (memq num gnus-newsgroup-unreads))
+ (and undownloaded
+ (memq num gnus-newsgroup-undownloaded))
+ (and unseen
+ (memq num gnus-newsgroup-unseen)
+ (memq num gnus-newsgroup-unreads)))))))
+ (setq data (cdr data)))
+ (prog1
+ (if data
+ (progn
+ (goto-char (gnus-data-pos (car data)))
+ (gnus-data-number (car data)))
+ (gnus-message 3 "No more%s articles"
+ (let* ((r (when unread " unread"))
+ (d (when undownloaded " undownloaded"))
+ (s (when unseen " unseen"))
+ (l (delq nil (list r d s))))
+ (cond ((= 3 (length l))
+ (concat r "," d ", or" s))
+ ((= 2 (length l))
+ (concat (car l) ", or" (cadr l)))
+ ((= 1 (length l))
+ (car l))
+ (t
+ ""))))
+ nil
+ )
+ (gnus-summary-position-point))))))
+
+(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)
+ (if backward
+ (gnus-summary-find-prev unread)
+ (gnus-summary-find-next unread)))
+ (unless (zerop (setq n (1- n)))
+ (gnus-summary-show-thread)))
+ (when (/= 0 n)
+ (gnus-message 7 "No more%s articles"
+ (if unread " unread" "")))
+ (unless dont-display
+ (gnus-summary-recenter)
+ (gnus-summary-position-point))
+ 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-subjects (articles)
+ "Insert the subject header for ARTICLES in the current buffer."
+ (save-excursion
+ (dolist (article articles)
+ (gnus-summary-goto-subject article t)))
+ (gnus-summary-limit (append articles gnus-newsgroup-limit))
+ (gnus-summary-position-point))
+
+(defun gnus-summary-goto-subject (article &optional force silent)
+ "Go to the subject line of ARTICLE.
+If FORCE, also allow jumping to articles not currently shown."
+ (interactive "nArticle number: ")
+ (unless (numberp article)
+ (error "Article %s is not a number" article))
+ (let ((b (point))
+ (data (gnus-data-find article)))
+ ;; We read in the article if we have to.
+ (and (not data)
+ force
+ (gnus-summary-insert-subject
+ article
+ (if (or (numberp force) (vectorp force)) force)
+ t)
+ (setq data (gnus-data-find article)))
+ (goto-char b)
+ (if (not data)
+ (progn
+ (unless silent
+ (gnus-message 3 "Can't find article %d" article))
+ nil)
+ (let ((pt (gnus-data-pos data)))
+ (goto-char pt)
+ (gnus-summary-set-article-display-arrow pt))
+ (gnus-summary-position-point)
+ article)))
+
+;; 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")
+ (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."
+ (unless (and (gnus-buffer-live-p gnus-article-buffer)
+ (with-current-buffer gnus-article-buffer
+ (derived-mode-p 'gnus-article-mode)))
+ (gnus-article-setup-buffer))
+ (gnus-set-global-variables)
+ (with-current-buffer gnus-article-buffer
+ (setq gnus-article-charset gnus-newsgroup-charset)
+ (setq gnus-article-ignored-charsets gnus-newsgroup-ignored-charsets)
+ (mm-enable-multibyte))
+ (if (null article)
+ nil
+ (prog1
+ (if gnus-summary-display-article-function
+ (funcall gnus-summary-display-article-function article all-header)
+ (gnus-article-prepare article all-header))
+ (gnus-run-hooks 'gnus-select-article-hook)
+ (when (and gnus-current-article
+ (not (zerop gnus-current-article)))
+ (gnus-summary-goto-subject gnus-current-article))
+ (gnus-summary-recenter)
+ (when (and gnus-use-trees gnus-show-threads)
+ (gnus-possibly-generate-tree article)
+ (gnus-highlight-selected-tree article))
+ ;; Successfully display article.
+ (gnus-article-set-window-start
+ (cdr (assq article gnus-newsgroup-bookmarks))))))
+
+(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."
+ ;; Make sure we are in the summary buffer to work around bbdb bug.
+ (unless (derived-mode-p 'gnus-summary-mode)
+ (set-buffer gnus-summary-buffer))
+ (let ((article (or article (gnus-summary-article-number)))
+ (all-headers (not (not all-headers))) ;Must be t or nil.
+ gnus-summary-display-article-function)
+ (and (not pseudo)
+ (gnus-summary-article-pseudo-p article)
+ (error "This is a pseudo-article"))
+ (with-current-buffer gnus-summary-buffer
+ (if (or (and gnus-single-article-buffer
+ (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))
+ (not (get-buffer gnus-original-article-buffer))))
+ (and (not gnus-single-article-buffer)
+ (or (null gnus-current-article)
+ (not (get-buffer gnus-original-article-buffer))
+ (not (eq gnus-current-article article))))
+ force)
+ ;; The requested article is different from the current article.
+ (progn
+ (gnus-summary-display-article article all-headers)
+ (when (gnus-buffer-live-p gnus-article-buffer)
+ (with-current-buffer gnus-article-buffer
+ (if (not gnus-article-decoded-p) ;; a local variable
+ (mm-disable-multibyte))))
+ (gnus-article-set-window-start
+ (cdr (assq article gnus-newsgroup-bookmarks)))
+ article)
+ 'old))))
+
+(defun gnus-summary-force-verify-and-decrypt ()
+ "Display buttons for signed/encrypted parts and verify/decrypt them."
+ (interactive)
+ (let ((mm-verify-option 'known)
+ (mm-decrypt-option 'known)
+ (gnus-article-emulate-mime t)
+ (gnus-buttonized-mime-types (append (list "multipart/signed"
+ "multipart/encrypted")
+ gnus-buttonized-mime-types)))
+ (gnus-summary-select-article nil 'force)))
+
+(defun gnus-summary-next-article (&optional unread subject backward push)
+ "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")
+ ;; Make sure we are in the summary buffer.
+ (unless (derived-mode-p 'gnus-summary-mode)
+ (set-buffer gnus-summary-buffer))
+ (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-point))
+ ;; If not, we try the first unread, if that is wanted.
+ ((and subject
+ gnus-auto-select-same
+ (gnus-summary-first-unread-article))
+ (gnus-summary-position-point)
+ (gnus-message 6 "Wrapped"))
+ ;; Try to get next/previous article not displayed in this group.
+ ((and gnus-auto-extend-newsgroup
+ (not unread) (not subject))
+ (gnus-summary-goto-article
+ (if backward (1- gnus-newsgroup-begin) (1+ gnus-newsgroup-end))
+ nil (count-lines (point-min) (point))))
+ ;; Go to next/previous group.
+ (t
+ (unless (gnus-ephemeral-group-p gnus-newsgroup-name)
+ (gnus-summary-jump-to-group gnus-newsgroup-name))
+ (let ((cmd (if (featurep 'xemacs)
+ last-command-char
+ last-command-event))
+ (point
+ (with-current-buffer gnus-group-buffer
+ (point)))
+ (current-summary (current-buffer))
+ (group
+ (if (eq gnus-keep-same-level 'best)
+ (gnus-summary-best-group gnus-newsgroup-name)
+ (gnus-summary-search-group backward gnus-keep-same-level))))
+ ;; Select next unread newsgroup automagically.
+ (cond
+ ((or (not gnus-auto-select-next)
+ (not cmd))
+ (gnus-message 7 "No more%s articles" (if unread " unread" "")))
+ ((or (eq gnus-auto-select-next 'quietly)
+ (and (eq gnus-auto-select-next 'slightly-quietly)
+ push)
+ (and (eq gnus-auto-select-next 'almost-quietly)
+ (gnus-summary-last-article-p)))
+ ;; 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
+ (when (gnus-key-press-event-p last-input-event)
+ ;; Somehow or other, we may now have selected a different
+ ;; window. Make point go back to the summary buffer.
+ (when (eq current-summary (current-buffer))
+ ;; FIXME: This burps when get-buffer-window returns nil.
+ (select-window (get-buffer-window current-summary 0)))
+ (gnus-summary-walk-group-buffer
+ gnus-newsgroup-name cmd unread backward point))))))))
+
+(defun gnus-summary-walk-group-buffer (from-group cmd unread backward start)
+ (let ((keystrokes '((?\C-n (gnus-group-next-unread-group 1))
+ (?\C-p (gnus-group-prev-unread-group 1))))
+ (cursor-in-echo-area t)
+ keve key group ended prompt)
+ (with-current-buffer gnus-group-buffer
+ (goto-char start)
+ (setq group
+ (if (eq gnus-keep-same-level 'best)
+ (gnus-summary-best-group gnus-newsgroup-name)
+ (gnus-summary-search-group backward gnus-keep-same-level))))
+ (while (not ended)
+ (setq prompt
+ (format
+ "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)
+ (gnus-group-decoded-name group)
+ (gnus-group-unread group))
+ (format " (Type %s to exit %s)"
+ (single-key-description cmd)
+ (gnus-group-decoded-name gnus-newsgroup-name)))))
+ ;; Confirm auto selection.
+ (setq key (car (setq keve (gnus-read-event-char prompt)))
+ ended t)
+ (cond
+ ((assq key keystrokes)
+ (let ((obuf (current-buffer)))
+ (switch-to-buffer gnus-group-buffer)
+ (when group
+ (gnus-group-jump-to-group group))
+ (eval (cadr (assq key keystrokes)))
+ (setq group (gnus-group-group-name))
+ (switch-to-buffer obuf))
+ (setq ended nil))
+ ((equal key cmd)
+ (if (or (not group)
+ (gnus-ephemeral-group-p gnus-newsgroup-name))
+ (gnus-summary-exit)
+ (gnus-summary-next-group nil group backward)))
+ (t
+ (push (cdr keve) unread-command-events))))))
+
+(defun gnus-summary-next-unread-article ()
+ "Select unread article after current one."
+ (interactive)
+ (gnus-summary-next-article
+ (or (not (eq gnus-summary-goto-unread 'never))
+ (gnus-summary-last-article-p (gnus-summary-article-number)))
+ (and gnus-auto-select-same
+ (gnus-summary-article-subject))))
+
+(defun gnus-summary-prev-article (&optional unread subject)
+ "Select the article before 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 unread article before current one."
+ (interactive)
+ (gnus-summary-prev-article
+ (or (not (eq gnus-summary-goto-unread 'never))
+ (gnus-summary-first-article-p (gnus-summary-article-number)))
+ (and gnus-auto-select-same
+ (gnus-summary-article-subject))))
+
+(declare-function gnus-article-only-boring-p "gnus-art" ())
+
+(defun gnus-summary-next-page (&optional lines circular stop)
+ "Show next page of the selected article.
+If at the end of the current article, select the next article.
+LINES says how many lines should be scrolled up.
+
+If CIRCULAR is non-nil, go to the start of the article instead of
+selecting the next article when reaching the end of the current
+article.
+
+If STOP is non-nil, just stop when reaching the end of the message.
+
+Also see the variable `gnus-article-skip-boring'."
+ (interactive "P")
+ (gnus-set-global-variables)
+ (let ((article (gnus-summary-article-number))
+ (article-window (get-buffer-window gnus-article-buffer t))
+ endp)
+ ;; If the buffer is empty, we have no article.
+ (unless article
+ (error "No article to select"))
+ (gnus-configure-windows 'article)
+ (if (eq (cdr (assq article gnus-newsgroup-reads)) gnus-canceled-mark)
+ (if (and (eq gnus-summary-goto-unread 'never)
+ (not (gnus-summary-last-article-p article)))
+ (gnus-summary-next-article)
+ (gnus-summary-next-unread-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)
+ (when article-window
+ (gnus-eval-in-buffer-window gnus-article-buffer
+ (setq endp (or (gnus-article-next-page lines)
+ (gnus-article-only-boring-p))))
+ (when endp
+ (cond ((or stop gnus-summary-stop-at-end-of-message)
+ (gnus-message 3 "End of message"))
+ (circular
+ (gnus-summary-beginning-of-article))
+ (lines
+ (gnus-message 3 "End of message"))
+ ((null lines)
+ (if (and (eq gnus-summary-goto-unread 'never)
+ (not (gnus-summary-last-article-p article)))
+ (gnus-summary-next-article)
+ (gnus-summary-next-unread-article))))))))
+ (gnus-summary-recenter)
+ (gnus-summary-position-point)))
+
+(defun gnus-summary-prev-page (&optional lines move)
+ "Show previous page of selected article.
+Argument LINES specifies lines to be scrolled down.
+If MOVE, move to the previous unread article if point is at
+the beginning of the buffer."
+ (interactive "P")
+ (let ((article (gnus-summary-article-number))
+ (article-window (get-buffer-window gnus-article-buffer t))
+ endp)
+ (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)
+ (when article-window
+ (gnus-eval-in-buffer-window gnus-article-buffer
+ (setq endp (gnus-article-prev-page lines)))
+ (when (and move endp)
+ (cond (lines
+ (gnus-message 3 "Beginning of message"))
+ ((null lines)
+ (if (and (eq gnus-summary-goto-unread 'never)
+ (not (gnus-summary-first-article-p article)))
+ (gnus-summary-prev-article)
+ (gnus-summary-prev-unread-article))))))))
+ (gnus-summary-position-point))
+
+(defun gnus-summary-prev-page-or-article (&optional lines)
+ "Show previous page of selected article.
+Argument LINES specifies lines to be scrolled down.
+If at the beginning of the article, go to the next article."
+ (interactive "P")
+ (gnus-summary-prev-page lines t))
+
+(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).
+If no article is selected, then the current article will be selected first."
+ (interactive "p")
+ (gnus-configure-windows 'article)
+ (gnus-summary-show-thread)
+ (when (eq (gnus-summary-select-article nil nil 'pseudo) 'old)
+ (gnus-eval-in-buffer-window gnus-article-buffer
+ (cond ((> lines 0)
+ (when (gnus-article-next-page lines)
+ (gnus-message 3 "End of message")))
+ ((< lines 0)
+ (gnus-article-prev-page (- lines))))))
+ (gnus-summary-recenter)
+ (gnus-summary-position-point))
+
+(defun gnus-summary-scroll-down (lines)
+ "Scroll down (or up) one line current article.
+Argument LINES specifies lines to be scrolled down (or up if negative).
+If no article is selected, then the current article will be selected first."
+ (interactive "p")
+ (gnus-summary-scroll-up (- 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-article-subject)))
+
+(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-article-subject)))
+
+(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-article-subject)))
+
+(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-article-subject)))
+
+(defun gnus-summary-first-unread-article ()
+ "Select the first unread article.
+Return nil if there are no unread articles."
+ (interactive)
+ (prog1
+ (when (gnus-summary-first-subject t)
+ (gnus-summary-show-thread)
+ (gnus-summary-first-subject t)
+ (gnus-summary-display-article (gnus-summary-article-number)))
+ (gnus-summary-position-point)))
+
+(defun gnus-summary-first-unread-subject ()
+ "Place the point on the subject line of the first unread article.
+Return nil if there are no unread articles."
+ (interactive)
+ (prog1
+ (when (gnus-summary-first-subject t)
+ (gnus-summary-show-thread)
+ (gnus-summary-first-subject t))
+ (gnus-summary-position-point)))
+
+(defun gnus-summary-first-unseen-subject ()
+ "Place the point on the subject line of the first unseen article.
+Return nil if there are no unseen articles."
+ (interactive)
+ (prog1
+ (when (gnus-summary-first-subject nil nil t)
+ (gnus-summary-show-thread)
+ (gnus-summary-first-subject nil nil t))
+ (gnus-summary-position-point)))
+
+(defun gnus-summary-first-unseen-or-unread-subject ()
+ "Place the point on the subject line of the first unseen and unread article.
+If all article have been seen, on the subject line of the first unread
+article."
+ (interactive)
+ (prog1
+ (unless (when (gnus-summary-first-subject nil nil t)
+ (gnus-summary-show-thread)
+ (gnus-summary-first-subject nil nil t))
+ (when (gnus-summary-first-subject t)
+ (gnus-summary-show-thread)
+ (gnus-summary-first-subject t)))
+ (gnus-summary-position-point)))
+
+(defun gnus-summary-first-article ()
+ "Select the first article.
+Return nil if there are no articles."
+ (interactive)
+ (prog1
+ (when (gnus-summary-first-subject)
+ (gnus-summary-show-thread)
+ (gnus-summary-first-subject)
+ (gnus-summary-display-article (gnus-summary-article-number)))
+ (gnus-summary-position-point)))
+
+(defun gnus-summary-best-unread-article (&optional arg)
+ "Select the unread article with the highest score.
+If given a prefix argument, select the next unread article that has a
+score higher than the default score."
+ (interactive "P")
+ (let ((article (if arg
+ (gnus-summary-better-unread-subject)
+ (gnus-summary-best-unread-subject))))
+ (if article
+ (gnus-summary-goto-article article)
+ (error "No unread articles"))))
+
+(defun gnus-summary-best-unread-subject ()
+ "Select the unread subject with the highest score."
+ (interactive)
+ (let ((best -1000000)
+ (data gnus-newsgroup-data)
+ article score)
+ (while data
+ (and (gnus-data-unread-p (car data))
+ (> (setq score
+ (gnus-summary-article-score (gnus-data-number (car data))))
+ best)
+ (setq best score
+ article (gnus-data-number (car data))))
+ (setq data (cdr data)))
+ (when article
+ (gnus-summary-goto-subject article))
+ (gnus-summary-position-point)
+ article))
+
+(defun gnus-summary-better-unread-subject ()
+ "Select the first unread subject that has a score over the default score."
+ (interactive)
+ (let ((data gnus-newsgroup-data)
+ article score)
+ (while (and (setq article (gnus-data-number (car data)))
+ (or (gnus-data-read-p (car data))
+ (not (> (gnus-summary-article-score article)
+ gnus-summary-default-score))))
+ (setq data (cdr data)))
+ (when article
+ (gnus-summary-goto-subject article))
+ (gnus-summary-position-point)
+ article))
+
+(defun gnus-summary-last-subject ()
+ "Go to the last displayed subject line in the group."
+ (let ((article (gnus-data-number (car (gnus-data-list t)))))
+ (when article
+ (gnus-summary-goto-subject article))))
+
+(defun gnus-summary-goto-article (article &optional all-headers force)
+ "Fetch ARTICLE (article number or Message-ID) and display it if it exists.
+If ALL-HEADERS is non-nil, no header lines are hidden.
+If FORCE, go to the article even if it isn't displayed. If FORCE
+is a number, it is the line the article is to be displayed on."
+ (interactive
+ (list
+ (gnus-completing-read
+ "Article number or Message-ID"
+ (mapcar 'int-to-string gnus-newsgroup-limit))
+ current-prefix-arg
+ t))
+ (prog1
+ (if (and (stringp article)
+ (string-match "@\\|%40" article))
+ (gnus-summary-refer-article article)
+ (when (stringp article)
+ (setq article (string-to-number article)))
+ (if (gnus-summary-goto-subject article force)
+ (gnus-summary-display-article article all-headers)
+ (gnus-message 4 "Couldn't go to article %s" article) nil))
+ (gnus-summary-position-point)))
+
+(defun gnus-summary-goto-last-article ()
+ "Go to the previously read article."
+ (interactive)
+ (prog1
+ (when gnus-last-article
+ (gnus-summary-goto-article gnus-last-article nil t))
+ (gnus-summary-position-point)))
+
+(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) nil t)
+ (error "Article history empty")))
+ (gnus-summary-position-point))
+
+;; Summary commands and functions for limiting the summary buffer.
+
+(defun gnus-summary-limit-to-articles (n)
+ "Limit the summary buffer to the next N articles.
+If not given a prefix, use the process marked articles instead."
+ (interactive "P")
+ (prog1
+ (let ((articles (gnus-summary-work-articles n)))
+ (setq gnus-newsgroup-processable nil)
+ (gnus-summary-limit articles))
+ (gnus-summary-position-point)))
+
+(defun gnus-summary-pop-limit (&optional total)
+ "Restore the previous limit.
+If given a prefix, remove all limits."
+ (interactive "P")
+ (when total
+ (setq gnus-newsgroup-limits
+ (list (mapcar (lambda (h) (mail-header-number h))
+ gnus-newsgroup-headers))))
+ (unless gnus-newsgroup-limits
+ (error "No limit to pop"))
+ (prog1
+ (gnus-summary-limit nil 'pop)
+ (gnus-summary-position-point)))
+
+(defun gnus-summary-limit-to-subject (subject &optional header not-matching)
+ "Limit the summary buffer to articles that have subjects that match a regexp.
+If NOT-MATCHING, excluding articles that have subjects that match a regexp."
+ (interactive
+ (list (read-string (if current-prefix-arg
+ "Exclude subject (regexp): "
+ "Limit to subject (regexp): "))
+ nil current-prefix-arg))
+ (unless header
+ (setq header "subject"))
+ (when (not (equal "" subject))
+ (prog1
+ (let ((articles (gnus-summary-find-matching
+ (or header "subject") subject 'all nil nil
+ not-matching)))
+ (unless articles
+ (error "Found no matches for \"%s\"" subject))
+ (gnus-summary-limit articles))
+ (gnus-summary-position-point))))
+
+(defun gnus-summary-limit-to-author (from &optional not-matching)
+ "Limit the summary buffer to articles that have authors that match a regexp.
+If NOT-MATCHING, excluding articles that have authors that match a regexp."
+ (interactive
+ (list (let* ((header (gnus-summary-article-header))
+ (default (and header (car (mail-header-parse-address
+ (mail-header-from header))))))
+ (read-string (concat (if current-prefix-arg
+ "Exclude author (regexp"
+ "Limit to author (regexp")
+ (if default
+ (concat ", default \"" default "\"): ")
+ "): "))
+ nil nil
+ default))
+ current-prefix-arg))
+ (gnus-summary-limit-to-subject from "from" not-matching))
+
+(defun gnus-summary-limit-to-recipient (recipient &optional not-matching)
+ "Limit the summary buffer to articles with the given RECIPIENT.
+
+If NOT-MATCHING, exclude RECIPIENT.
+
+To and Cc headers are checked. You need to include them in
+`nnmail-extra-headers'."
+ ;; Unlike `rmail-summary-by-recipients', doesn't include From.
+ (interactive
+ (list (read-string (format "%s recipient (regexp): "
+ (if current-prefix-arg "Exclude" "Limit to")))
+ current-prefix-arg))
+ (when (not (equal "" recipient))
+ (prog1 (let* ((to
+ (if (memq 'To nnmail-extra-headers)
+ (gnus-summary-find-matching
+ (cons 'extra 'To) recipient 'all nil nil
+ not-matching)
+ (gnus-message
+ 1 "`To' isn't present in `nnmail-extra-headers'")
+ (sit-for 1)
+ nil))
+ (cc
+ (if (memq 'Cc nnmail-extra-headers)
+ (gnus-summary-find-matching
+ (cons 'extra 'Cc) recipient 'all nil nil
+ not-matching)
+ (gnus-message
+ 1 "`Cc' isn't present in `nnmail-extra-headers'")
+ (sit-for 1)
+ nil))
+ (articles
+ (if not-matching
+ ;; We need the numbers that are in both lists:
+ (mapcar (lambda (a)
+ (and (memq a to) a))
+ cc)
+ (nconc to cc))))
+ (unless articles
+ (error "Found no matches for \"%s\"" recipient))
+ (gnus-summary-limit articles))
+ (gnus-summary-position-point))))
+
+(defun gnus-summary-limit-to-address (address &optional not-matching)
+ "Limit the summary buffer to articles with the given ADDRESS.
+
+If NOT-MATCHING, exclude ADDRESS.
+
+To, Cc and From headers are checked. You need to include `To' and `Cc'
+in `nnmail-extra-headers'."
+ (interactive
+ (list (read-string (format "%s address (regexp): "
+ (if current-prefix-arg "Exclude" "Limit to")))
+ current-prefix-arg))
+ (when (not (equal "" address))
+ (prog1 (let* ((to
+ (if (memq 'To nnmail-extra-headers)
+ (gnus-summary-find-matching
+ (cons 'extra 'To) address 'all nil nil
+ not-matching)
+ (gnus-message
+ 1 "`To' isn't present in `nnmail-extra-headers'")
+ (sit-for 1)
+ t))
+ (cc
+ (if (memq 'Cc nnmail-extra-headers)
+ (gnus-summary-find-matching
+ (cons 'extra 'Cc) address 'all nil nil
+ not-matching)
+ (gnus-message
+ 1 "`Cc' isn't present in `nnmail-extra-headers'")
+ (sit-for 1)
+ t))
+ (from
+ (gnus-summary-find-matching "from" address
+ 'all nil nil not-matching))
+ (articles
+ (if not-matching
+ ;; We need the numbers that are in all lists:
+ (if (eq cc t)
+ (if (eq to t)
+ from
+ (mapcar (lambda (a) (car (memq a from))) to))
+ (if (eq to t)
+ (mapcar (lambda (a) (car (memq a from))) cc)
+ (mapcar (lambda (a) (car (memq a from)))
+ (mapcar (lambda (a) (car (memq a to)))
+ cc))))
+ (nconc (if (eq to t) nil to)
+ (if (eq cc t) nil cc)
+ from))))
+ (unless articles
+ (error "Found no matches for \"%s\"" address))
+ (gnus-summary-limit articles))
+ (gnus-summary-position-point))))
+
+(defun gnus-summary-limit-strange-charsets-predicate (header)
+ (when (fboundp 'char-charset)
+ (let ((string (concat (mail-header-subject header)
+ (mail-header-from header)))
+ charset found)
+ (dotimes (i (1- (length string)))
+ (setq charset (format "%s" (char-charset (aref string (1+ i)))))
+ (when (string-match "unicode\\|big\\|japanese" charset)
+ (setq found t)))
+ found)))
+
+(defun gnus-summary-limit-to-predicate (predicate)
+ "Limit to articles where PREDICATE returns non-nil.
+PREDICATE will be called with the header structures of the
+articles."
+ (let ((articles nil)
+ (case-fold-search t))
+ (dolist (header gnus-newsgroup-headers)
+ (when (funcall predicate header)
+ (push (mail-header-number header) articles)))
+ (gnus-summary-limit (nreverse articles))))
+
+(defun gnus-summary-limit-to-age (age &optional younger-p)
+ "Limit the summary buffer to articles that are older than (or equal) AGE days.
+If YOUNGER-P (the prefix) is non-nil, limit the summary buffer to
+articles that are younger than AGE days."
+ (interactive
+ (let ((younger current-prefix-arg)
+ (days-got nil)
+ days)
+ (while (not days-got)
+ (setq days (if younger
+ (read-string "Limit to articles younger than (in days, older when negative): ")
+ (read-string
+ "Limit to articles older than (in days, younger when negative): ")))
+ (when (> (length days) 0)
+ (setq days (read days)))
+ (if (numberp days)
+ (progn
+ (setq days-got t)
+ (when (< days 0)
+ (setq younger (not younger))
+ (setq days (* days -1))))
+ (message "Please enter a number.")
+ (sleep-for 1)))
+ (list days younger)))
+ (prog1
+ (let ((data gnus-newsgroup-data)
+ (cutoff (days-to-time age))
+ articles d date is-younger)
+ (while (setq d (pop data))
+ (when (and (vectorp (gnus-data-header d))
+ (setq date (mail-header-date (gnus-data-header d))))
+ (setq is-younger (time-less-p
+ (time-since (gnus-date-get-time date))
+ cutoff))
+ (when (if younger-p
+ is-younger
+ (not is-younger))
+ (push (gnus-data-number d) articles))))
+ (gnus-summary-limit (nreverse articles)))
+ (gnus-summary-position-point)))
+
+(defun gnus-summary-limit-to-extra (header regexp &optional not-matching)
+ "Limit the summary buffer to articles that match an `extra' header."
+ (interactive
+ (let ((header
+ (intern
+ (gnus-completing-read
+ (if current-prefix-arg
+ "Exclude extra header"
+ "Limit extra header")
+ (mapcar 'symbol-name gnus-extra-headers)
+ t nil nil
+ (symbol-name (car gnus-extra-headers))))))
+ (list header
+ (read-string (format "%s header %s (regexp): "
+ (if current-prefix-arg "Exclude" "Limit to")
+ header))
+ current-prefix-arg)))
+ (when (not (equal "" regexp))
+ (prog1
+ (let ((articles (gnus-summary-find-matching
+ (cons 'extra header) regexp 'all nil nil
+ not-matching)))
+ (unless articles
+ (error "Found no matches for \"%s\"" regexp))
+ (gnus-summary-limit articles))
+ (gnus-summary-position-point))))
+
+(defun gnus-summary-limit-to-display-predicate ()
+ "Limit the summary buffer to the predicated in the `display' group parameter."
+ (interactive)
+ (unless gnus-newsgroup-display
+ (error "There is no `display' group parameter"))
+ (let (articles)
+ (dolist (gnus-number gnus-newsgroup-articles)
+ (when (funcall gnus-newsgroup-display)
+ (push gnus-number articles)))
+ (gnus-summary-limit articles))
+ (gnus-summary-position-point))
+
+(defun gnus-summary-limit-to-unread (&optional all)
+ "Limit the summary buffer to articles that are not marked as read.
+If ALL is non-nil, limit strictly to unread articles."
+ (interactive "P")
+ (if all
+ (gnus-summary-limit-to-marks (char-to-string gnus-unread-mark))
+ (gnus-summary-limit-to-marks
+ ;; Concat all the marks that say that an article is read and have
+ ;; those removed.
+ (list gnus-del-mark gnus-read-mark gnus-ancient-mark
+ gnus-killed-mark gnus-spam-mark gnus-kill-file-mark
+ gnus-low-score-mark gnus-expirable-mark
+ gnus-canceled-mark gnus-catchup-mark gnus-sparse-mark
+ gnus-duplicate-mark)
+ 'reverse)))
+
+(defun gnus-summary-limit-to-headers (match &optional reverse)
+ "Limit the summary buffer to articles that have headers that match MATCH.
+If REVERSE (the prefix), limit to articles that don't match."
+ (interactive "sMatch headers (regexp): \nP")
+ (gnus-summary-limit-to-bodies match reverse t))
+
+(declare-function article-goto-body "gnus-art" ())
+
+(defun gnus-summary-limit-to-bodies (match &optional reverse headersp)
+ "Limit the summary buffer to articles that have bodies that match MATCH.
+If REVERSE (the prefix), limit to articles that don't match."
+ (interactive "sMatch body (regexp): \nP")
+ (let ((articles nil)
+ (gnus-select-article-hook nil) ;Disable hook.
+ (gnus-article-prepare-hook nil)
+ (gnus-use-article-prefetch nil)
+ (gnus-keep-backlog nil)
+ (gnus-break-pages nil)
+ (gnus-summary-display-arrow nil)
+ (gnus-updated-mode-lines nil)
+ (gnus-auto-center-summary nil)
+ (gnus-display-mime-function nil))
+ (dolist (data gnus-newsgroup-data)
+ (let (gnus-mark-article-hook)
+ (gnus-summary-select-article t t nil (gnus-data-number data)))
+ (with-current-buffer gnus-article-buffer
+ (article-goto-body)
+ (let* ((case-fold-search t)
+ (found (if headersp
+ (re-search-backward match nil t)
+ (re-search-forward match nil t))))
+ (when (or (and found
+ (not reverse))
+ (and (not found)
+ reverse))
+ (push (gnus-data-number data) articles)))))
+ (if (not articles)
+ (message "No messages matched")
+ (gnus-summary-limit articles)))
+ (gnus-summary-position-point))
+
+(defun gnus-summary-limit-to-singletons (&optional threadsp)
+ "Limit the summary buffer to articles that aren't part on any thread.
+If THREADSP (the prefix), limit to articles that are in threads."
+ (interactive "P")
+ (let ((articles nil)
+ thread-articles
+ threads)
+ (dolist (thread gnus-newsgroup-threads)
+ (if (stringp (car thread))
+ (dolist (thread (cdr thread))
+ (push thread threads))
+ (push thread threads)))
+ (dolist (thread threads)
+ (setq thread-articles (gnus-articles-in-thread thread))
+ (when (or (and threadsp
+ (> (length thread-articles) 1))
+ (and (not threadsp)
+ (= (length thread-articles) 1)))
+ (setq articles (nconc thread-articles articles))))
+ (if (not articles)
+ (message "No messages matched")
+ (gnus-summary-limit articles))
+ (gnus-summary-position-point)))
+
+(defun gnus-summary-limit-to-replied (&optional unreplied)
+ "Limit the summary buffer to replied articles.
+If UNREPLIED (the prefix), limit to unreplied articles."
+ (interactive "P")
+ (if unreplied
+ (gnus-summary-limit
+ (gnus-set-difference gnus-newsgroup-articles
+ gnus-newsgroup-replied))
+ (gnus-summary-limit gnus-newsgroup-replied))
+ (gnus-summary-position-point))
+
+(defun gnus-summary-limit-exclude-marks (marks &optional reverse)
+ "Exclude articles that are marked with MARKS (e.g. \"DK\").
+If REVERSE, limit the summary buffer to articles that are marked
+with MARKS. MARKS can either be a string of marks or a list of marks.
+Returns how many articles were removed."
+ (interactive "sMarks: ")
+ (gnus-summary-limit-to-marks marks t))
+
+(defun gnus-summary-limit-to-marks (marks &optional reverse)
+ "Limit the summary buffer to articles that are marked with MARKS (e.g. \"DK\").
+If REVERSE (the prefix), limit the summary buffer to articles that are
+not marked with MARKS. MARKS can either be a string of marks or a
+list of marks.
+Returns how many articles were removed."
+ (interactive "sMarks: \nP")
+ (prog1
+ (let ((data gnus-newsgroup-data)
+ (marks (if (listp marks) marks
+ (append marks nil))) ; Transform to list.
+ articles)
+ (while data
+ (when (if reverse (not (memq (gnus-data-mark (car data)) marks))
+ (memq (gnus-data-mark (car data)) marks))
+ (push (gnus-data-number (car data)) articles))
+ (setq data (cdr data)))
+ (gnus-summary-limit articles))
+ (gnus-summary-position-point)))
+
+(defun gnus-summary-limit-to-score (score)
+ "Limit to articles with score at or above SCORE."
+ (interactive "NLimit to articles with score of at least: ")
+ (let ((data gnus-newsgroup-data)
+ articles)
+ (while data
+ (when (>= (gnus-summary-article-score (gnus-data-number (car data)))
+ score)
+ (push (gnus-data-number (car data)) articles))
+ (setq data (cdr data)))
+ (prog1
+ (gnus-summary-limit articles)
+ (gnus-summary-position-point))))
+
+(defun gnus-summary-limit-to-unseen ()
+ "Limit to unseen articles."
+ (interactive)
+ (prog1
+ (gnus-summary-limit gnus-newsgroup-unseen)
+ (gnus-summary-position-point)))
+
+(defun gnus-summary-limit-include-thread (id)
+ "Display all the hidden articles that is in the thread with ID in it.
+When called interactively, ID is the Message-ID of the current
+article."
+ (interactive (list (mail-header-id (gnus-summary-article-header))))
+ (let ((articles (gnus-articles-in-thread
+ (gnus-id-to-thread (gnus-root-id id))))
+ ;;we REALLY want the whole thread---this prevents cut-threads
+ ;;from removing the thread we want to include.
+ (gnus-fetch-old-headers nil)
+ (gnus-build-sparse-threads nil))
+ (prog1
+ (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
+ (gnus-summary-limit-include-matching-articles
+ "subject"
+ (regexp-quote (gnus-simplify-subject-re
+ (mail-header-subject (gnus-id-to-header id)))))
+ (gnus-summary-position-point))))
+
+(defun gnus-summary-limit-include-matching-articles (header regexp)
+ "Display all the hidden articles that have HEADERs that match REGEXP."
+ (interactive (list (read-string "Match on header: ")
+ (read-string "Regexp: ")))
+ (let ((articles (gnus-find-matching-articles header regexp)))
+ (prog1
+ (gnus-summary-limit (nconc articles gnus-newsgroup-limit))
+ (gnus-summary-position-point))))
+
+(defun gnus-summary-insert-dormant-articles ()
+ "Insert all the dormant articles for this group into the current buffer."
+ (interactive)
+ (let ((gnus-verbose (max 6 gnus-verbose)))
+ (if (not gnus-newsgroup-dormant)
+ (gnus-message 3 "No dormant articles for this group")
+ (gnus-summary-goto-subjects gnus-newsgroup-dormant))))
+
+(defun gnus-summary-insert-ticked-articles ()
+ "Insert ticked articles for this group into the current buffer."
+ (interactive)
+ (let ((gnus-verbose (max 6 gnus-verbose)))
+ (if (not gnus-newsgroup-marked)
+ (gnus-message 3 "No ticked articles for this group")
+ (gnus-summary-goto-subjects gnus-newsgroup-marked))))
+
+(defun gnus-summary-limit-include-dormant ()
+ "Display all the hidden articles that are marked as dormant.
+Note that this command only works on a subset of the articles currently
+fetched for this group."
+ (interactive)
+ (unless gnus-newsgroup-dormant
+ (error "There are no dormant articles in this group"))
+ (prog1
+ (gnus-summary-limit (append gnus-newsgroup-dormant gnus-newsgroup-limit))
+ (gnus-summary-position-point)))
+
+(defun gnus-summary-include-articles (articles)
+ "Fetch the headers for ARTICLES and then display the summary lines."
+ (let ((gnus-inhibit-demon t)
+ (gnus-agent nil)
+ (gnus-read-all-available-headers t))
+ (setq gnus-newsgroup-headers
+ (gnus-merge
+ 'list gnus-newsgroup-headers
+ (gnus-fetch-headers articles nil t)
+ 'gnus-article-sort-by-number))
+ (setq gnus-newsgroup-articles
+ (gnus-sorted-nunion gnus-newsgroup-articles articles))
+ (gnus-summary-limit (append articles gnus-newsgroup-limit))))
+
+(defun gnus-summary-limit-exclude-dormant ()
+ "Hide all dormant articles."
+ (interactive)
+ (prog1
+ (gnus-summary-limit-to-marks (list gnus-dormant-mark) 'reverse)
+ (gnus-summary-position-point)))
+
+(defun gnus-summary-limit-exclude-childless-dormant ()
+ "Hide all dormant articles that have no children."
+ (interactive)
+ (let ((data (gnus-data-list t))
+ articles d children)
+ ;; Find all articles that are either not dormant or have
+ ;; children.
+ (while (setq d (pop data))
+ (when (or (not (= (gnus-data-mark d) gnus-dormant-mark))
+ (and (setq children
+ (gnus-article-children (gnus-data-number d)))
+ (let (found)
+ (while children
+ (when (memq (car children) articles)
+ (setq children nil
+ found t))
+ (pop children))
+ found)))
+ (push (gnus-data-number d) articles)))
+ ;; Do the limiting.
+ (prog1
+ (gnus-summary-limit articles)
+ (gnus-summary-position-point))))
+
+(defun gnus-summary-limit-mark-excluded-as-read (&optional all)
+ "Mark all unread excluded articles as read.
+If ALL, mark even excluded ticked and dormants as read."
+ (interactive "P")
+ (setq gnus-newsgroup-limit (sort gnus-newsgroup-limit '<))
+ (let ((articles (gnus-sorted-ndifference
+ (sort
+ (mapcar (lambda (h) (mail-header-number h))
+ gnus-newsgroup-headers)
+ '<)
+ gnus-newsgroup-limit))
+ article)
+ (setq gnus-newsgroup-unreads
+ (gnus-sorted-intersection gnus-newsgroup-unreads
+ gnus-newsgroup-limit))
+ (if all
+ (setq gnus-newsgroup-dormant nil
+ gnus-newsgroup-marked nil
+ gnus-newsgroup-reads
+ (nconc
+ (mapcar (lambda (n) (cons n gnus-catchup-mark)) articles)
+ gnus-newsgroup-reads))
+ (while (setq article (pop articles))
+ (unless (or (memq article gnus-newsgroup-dormant)
+ (memq article gnus-newsgroup-marked))
+ (push (cons article gnus-catchup-mark) gnus-newsgroup-reads))))))
+
+(defun gnus-summary-limit (articles &optional pop)
+ (if pop
+ ;; We pop the previous limit off the stack and use that.
+ (setq articles (car gnus-newsgroup-limits)
+ gnus-newsgroup-limits (cdr gnus-newsgroup-limits))
+ ;; We use the new limit, so we push the old limit on the stack.
+ (push gnus-newsgroup-limit gnus-newsgroup-limits))
+ ;; Set the limit.
+ (setq gnus-newsgroup-limit articles)
+ (let ((total (length gnus-newsgroup-data))
+ (data (gnus-data-find-list (gnus-summary-article-number)))
+ (gnus-summary-mark-below nil) ; Inhibit this.
+ found)
+ ;; This will do all the work of generating the new summary buffer
+ ;; according to the new limit.
+ (gnus-summary-prepare)
+ ;; Hide any threads, possibly.
+ (gnus-summary-maybe-hide-threads)
+ ;; Try to return to the article you were at, or one in the
+ ;; neighborhood.
+ (when data
+ ;; We try to find some article after the current one.
+ (while data
+ (when (gnus-summary-goto-subject (gnus-data-number (car data)) nil t)
+ (setq data nil
+ found t))
+ (setq data (cdr data))))
+ (unless found
+ ;; If there is no data, that means that we were after the last
+ ;; article. The same goes when we can't find any articles
+ ;; after the current one.
+ (goto-char (point-max))
+ (gnus-summary-find-prev))
+ (gnus-set-mode-line 'summary)
+ ;; We return how many articles were removed from the summary
+ ;; buffer as a result of the new limit.
+ (- total (length gnus-newsgroup-data))))
+
+(defsubst gnus-invisible-cut-children (threads)
+ (let ((num 0))
+ (while threads
+ (when (memq (mail-header-number (caar threads)) gnus-newsgroup-limit)
+ (incf num))
+ (pop threads))
+ (< num 2)))
+
+(defsubst gnus-cut-thread (thread)
+ "Go forwards in the thread until we find an article that we want to display."
+ (when (or (eq gnus-fetch-old-headers 'some)
+ (eq gnus-fetch-old-headers 'invisible)
+ (numberp gnus-fetch-old-headers)
+ (eq gnus-build-sparse-threads 'some)
+ (eq gnus-build-sparse-threads 'more))
+ ;; Deal with old-fetched headers and sparse threads.
+ (while (and
+ thread
+ (or
+ (gnus-summary-article-sparse-p (mail-header-number (car thread)))
+ (gnus-summary-article-ancient-p
+ (mail-header-number (car thread))))
+ (if (or (<= (length (cdr thread)) 1)
+ (eq gnus-fetch-old-headers 'invisible))
+ (setq gnus-newsgroup-limit
+ (delq (mail-header-number (car thread))
+ gnus-newsgroup-limit)
+ thread (cadr thread))
+ (when (gnus-invisible-cut-children (cdr thread))
+ (let ((th (cdr thread)))
+ (while th
+ (if (memq (mail-header-number (caar th))
+ gnus-newsgroup-limit)
+ (setq thread (car th)
+ th nil)
+ (setq th (cdr th))))))))))
+ thread)
+
+(defun gnus-cut-threads (threads)
+ "Cut off all uninteresting articles from the beginning of THREADS."
+ (when (or (eq gnus-fetch-old-headers 'some)
+ (eq gnus-fetch-old-headers 'invisible)
+ (numberp gnus-fetch-old-headers)
+ (eq gnus-build-sparse-threads 'some)
+ (eq gnus-build-sparse-threads 'more))
+ (let ((th threads))
+ (while th
+ (setcar th (gnus-cut-thread (car th)))
+ (setq th (cdr th)))))
+ ;; Remove nixed out threads.
+ (delq nil threads))
+
+(defun gnus-summary-initial-limit (&optional show-if-empty)
+ "Figure out what the initial limit is supposed to be on group entry.
+This entails weeding out unwanted dormants, low-scored articles,
+fetch-old-headers verbiage, and so on."
+ ;; Most groups have nothing to remove.
+ (unless (or gnus-inhibit-limiting
+ (and (null gnus-newsgroup-dormant)
+ (eq gnus-newsgroup-display 'gnus-not-ignore)
+ (not (eq gnus-fetch-old-headers 'some))
+ (not (numberp gnus-fetch-old-headers))
+ (not (eq gnus-fetch-old-headers 'invisible))
+ (null gnus-summary-expunge-below)
+ (not (eq gnus-build-sparse-threads 'some))
+ (not (eq gnus-build-sparse-threads 'more))
+ (null gnus-thread-expunge-below)))
+ (push gnus-newsgroup-limit gnus-newsgroup-limits)
+ (setq gnus-newsgroup-limit nil)
+ (mapatoms
+ (lambda (node)
+ (unless (car (symbol-value node))
+ ;; These threads have no parents -- they are roots.
+ (let ((nodes (cdr (symbol-value node)))
+ thread)
+ (while nodes
+ (if (and gnus-thread-expunge-below
+ (< (gnus-thread-total-score (car nodes))
+ gnus-thread-expunge-below))
+ (gnus-expunge-thread (pop nodes))
+ (setq thread (pop nodes))
+ (gnus-summary-limit-children thread))))))
+ gnus-newsgroup-dependencies)
+ ;; If this limitation resulted in an empty group, we might
+ ;; pop the previous limit and use it instead.
+ (when (and (not gnus-newsgroup-limit)
+ show-if-empty)
+ (setq gnus-newsgroup-limit (pop gnus-newsgroup-limits)))
+ gnus-newsgroup-limit))
+
+(defun gnus-summary-limit-children (thread)
+ "Return 1 if this subthread is visible and 0 if it is not."
+ ;; First we get the number of visible children to this thread. This
+ ;; is done by recursing down the thread using this function, so this
+ ;; will really go down to a leaf article first, before slowly
+ ;; working its way up towards the root.
+ (when thread
+ (let* ((max-lisp-eval-depth (max 5000 max-lisp-eval-depth))
+ (children
+ (if (cdr thread)
+ (apply '+ (mapcar 'gnus-summary-limit-children
+ (cdr thread)))
+ 0))
+ (number (mail-header-number (car thread)))
+ score)
+ (if (and
+ (not (memq number gnus-newsgroup-marked))
+ (or
+ ;; If this article is dormant and has absolutely no visible
+ ;; children, then this article isn't visible.
+ (and (memq number gnus-newsgroup-dormant)
+ (zerop children))
+ ;; If this is "fetch-old-headered" and there is no
+ ;; visible children, then we don't want this article.
+ (and (or (eq gnus-fetch-old-headers 'some)
+ (numberp gnus-fetch-old-headers))
+ (gnus-summary-article-ancient-p number)
+ (zerop children))
+ ;; If this is "fetch-old-headered" and `invisible', then
+ ;; we don't want this article.
+ (and (eq gnus-fetch-old-headers 'invisible)
+ (gnus-summary-article-ancient-p number))
+ ;; If this is a sparsely inserted article with no children,
+ ;; we don't want it.
+ (and (eq gnus-build-sparse-threads 'some)
+ (gnus-summary-article-sparse-p number)
+ (zerop children))
+ ;; If we use expunging, and this article is really
+ ;; low-scored, then we don't want this article.
+ (when (and gnus-summary-expunge-below
+ (< (setq score
+ (or (cdr (assq number gnus-newsgroup-scored))
+ gnus-summary-default-score))
+ gnus-summary-expunge-below))
+ ;; We increase the expunge-tally here, but that has
+ ;; nothing to do with the limits, really.
+ (incf gnus-newsgroup-expunged-tally)
+ ;; We also mark as read here, if that's wanted.
+ (when (and gnus-summary-mark-below
+ (< score gnus-summary-mark-below))
+ (setq gnus-newsgroup-unreads
+ (delq number gnus-newsgroup-unreads))
+ (if gnus-newsgroup-auto-expire
+ (push number gnus-newsgroup-expirable)
+ (push (cons number gnus-low-score-mark)
+ gnus-newsgroup-reads)))
+ t)
+ ;; Do the `display' group parameter.
+ (and gnus-newsgroup-display
+ (let ((gnus-number number))
+ (not (funcall gnus-newsgroup-display))))))
+ ;; Nope, invisible article.
+ 0
+ ;; Ok, this article is to be visible, so we add it to the limit
+ ;; and return 1.
+ (push number gnus-newsgroup-limit)
+ 1))))
+
+(defun gnus-expunge-thread (thread)
+ "Mark all articles in THREAD as read."
+ (let* ((number (mail-header-number (car thread))))
+ (incf gnus-newsgroup-expunged-tally)
+ ;; We also mark as read here, if that's wanted.
+ (setq gnus-newsgroup-unreads
+ (delq number gnus-newsgroup-unreads))
+ (if gnus-newsgroup-auto-expire
+ (push number gnus-newsgroup-expirable)
+ (push (cons number gnus-low-score-mark)
+ gnus-newsgroup-reads)))
+ ;; Go recursively through all subthreads.
+ (mapcar 'gnus-expunge-thread (cdr thread)))
+
+;; Summary article oriented commands
+
+(defun gnus-summary-refer-parent-article (n)
+ "Refer parent article N times.
+If N is negative, go to ancestor -N instead.
+The difference between N and the number of articles fetched is returned."
+ (interactive "p")
+ (let ((skip 1)
+ error header ref)
+ (when (not (natnump n))
+ (setq skip (abs n)
+ n 1))
+ (while (and (> n 0)
+ (not error))
+ (setq header (gnus-summary-article-header))
+ (if (and (eq (mail-header-number header)
+ (cdr gnus-article-current))
+ (equal gnus-newsgroup-name
+ (car gnus-article-current)))
+ ;; If we try to find the parent of the currently
+ ;; displayed article, then we take a look at the actual
+ ;; References header, since this is slightly more
+ ;; reliable than the References field we got from the
+ ;; server.
+ (with-current-buffer gnus-original-article-buffer
+ (nnheader-narrow-to-headers)
+ (unless (setq ref (message-fetch-field "references"))
+ (when (setq ref (message-fetch-field "in-reply-to"))
+ (setq ref (gnus-extract-message-id-from-in-reply-to ref))))
+ (widen))
+ (setq ref
+ ;; It's not the current article, so we take a bet on
+ ;; the value we got from the server.
+ (mail-header-references header)))
+ (if (and ref
+ (not (equal ref "")))
+ (unless (gnus-summary-refer-article (gnus-parent-id ref skip))
+ (gnus-message 1 "Couldn't find parent"))
+ (gnus-message 1 "No references in article %d"
+ (gnus-summary-article-number))
+ (setq error t))
+ (decf n))
+ (gnus-summary-position-point)
+ n))
+
+(defun gnus-summary-refer-references ()
+ "Fetch all articles mentioned in the References header.
+Return the number of articles fetched."
+ (interactive)
+ (let ((ref (mail-header-references (gnus-summary-article-header)))
+ (current (gnus-summary-article-number))
+ (n 0))
+ (if (or (not ref)
+ (equal ref ""))
+ (error "No References in the current article")
+ ;; For each Message-ID in the References header...
+ (while (string-match "<[^>]*>" ref)
+ (incf n)
+ ;; ... fetch that article.
+ (gnus-summary-refer-article
+ (prog1 (match-string 0 ref)
+ (setq ref (substring ref (match-end 0))))))
+ (gnus-summary-goto-subject current)
+ (gnus-summary-position-point)
+ n)))
+
+(defun gnus-delete-duplicate-headers (headers)
+ ;; First remove leading duplicates.
+ (while (and (> (length headers) 1)
+ (= (mail-header-number (car headers))
+ (mail-header-number (cadr headers))))
+ (pop headers))
+ ;; Then the rest.
+ (let ((result headers))
+ (while (> (length headers) 1)
+ (if (= (mail-header-number (car headers))
+ (mail-header-number (cadr headers)))
+ (setcdr headers (cddr headers))
+ (pop headers)))
+ result))
+
+(defun gnus-summary-refer-thread (&optional limit)
+ "Fetch all articles in the current thread. For backends that
+know how to search for threads (currently only 'nnimap) a
+non-numeric prefix arg will use nnir to search the entire
+server; without a prefix arg only the current group is
+searched. If the variable `gnus-refer-thread-use-nnir' is
+non-nil the prefix arg has the reverse meaning. If no
+backend-specific 'request-thread function is available fetch
+LIMIT (the numerical prefix) old headers. If LIMIT is
+non-numeric or nil fetch the number specified by the
+`gnus-refer-thread-limit' variable."
+ (interactive "P")
+ (gnus-warp-to-article)
+ (let* ((header (gnus-summary-article-header))
+ (id (mail-header-id header))
+ (gnus-inhibit-demon t)
+ (gnus-summary-ignore-duplicates t)
+ (gnus-read-all-available-headers t)
+ (gnus-refer-thread-use-nnir
+ (if (and (not (null limit)) (listp limit))
+ (not gnus-refer-thread-use-nnir) gnus-refer-thread-use-nnir))
+ (new-headers
+ (if (gnus-check-backend-function
+ 'request-thread gnus-newsgroup-name)
+ (gnus-request-thread header gnus-newsgroup-name)
+ (let* ((limit (if (numberp limit) (prefix-numeric-value limit)
+ gnus-refer-thread-limit))
+ (last (if (numberp limit)
+ (min (+ (mail-header-number header)
+ limit)
+ gnus-newsgroup-highest)
+ gnus-newsgroup-highest))
+ (subject (gnus-simplify-subject
+ (mail-header-subject header)))
+ (refs (split-string (or (mail-header-references header)
+ "")))
+ (gnus-parse-headers-hook
+ `(lambda () (goto-char (point-min))
+ (keep-lines
+ (regexp-opt ',(append refs (list id subject)))))))
+ (gnus-fetch-headers (list last) (if (numberp limit)
+ (* 2 limit) limit) t))))
+ article-ids new-unreads)
+ (when (listp new-headers)
+ (dolist (header new-headers)
+ (push (mail-header-number header) article-ids))
+ (setq article-ids (nreverse article-ids))
+ (setq new-unreads
+ (gnus-sorted-intersection gnus-newsgroup-unselected article-ids))
+ (setq gnus-newsgroup-unselected
+ (gnus-sorted-ndifference gnus-newsgroup-unselected new-unreads))
+ (setq gnus-newsgroup-unreads
+ (gnus-sorted-nunion gnus-newsgroup-unreads new-unreads))
+ (setq gnus-newsgroup-headers
+ (gnus-delete-duplicate-headers
+ (gnus-merge
+ 'list gnus-newsgroup-headers new-headers
+ 'gnus-article-sort-by-number)))
+ (setq gnus-newsgroup-articles
+ (gnus-sorted-nunion gnus-newsgroup-articles article-ids))
+ (gnus-summary-limit-include-thread id)))
+ (gnus-summary-show-thread))
+
+(defun gnus-summary-open-group-with-article (message-id)
+ "Open a group containing the article with the given MESSAGE-ID."
+ (interactive "sMessage-ID: ")
+ (require 'nndoc)
+ (with-temp-buffer
+ ;; Prepare a dummy article
+ (erase-buffer)
+ (insert "From nobody Tue Sep 13 22:05:34 2011\n\n")
+
+ ;; Prepare pretty modelines for summary and article buffers
+ (let ((gnus-summary-mode-line-format "Found %G")
+ (gnus-article-mode-line-format
+ ;; Group names just get in the way here, especially the
+ ;; abbreviated ones
+ (if (string-match "%[gG]" gnus-article-mode-line-format)
+ (concat (substring gnus-article-mode-line-format
+ 0 (match-beginning 0))
+ (substring gnus-article-mode-line-format (match-end 0)))
+ gnus-article-mode-line-format)))
+
+ ;; Build an ephemeral group containing the dummy article (hidden)
+ (gnus-group-read-ephemeral-group
+ message-id
+ `(nndoc ,message-id
+ (nndoc-address ,(current-buffer))
+ (nndoc-article-type mbox))
+ :activate
+ (cons (current-buffer) gnus-current-window-configuration)
+ (not :request-only)
+ '(-1) ; :select-articles
+ (not :parameters)
+ 0)) ; :number
+ ;; Fetch the desired article
+ (gnus-summary-refer-article message-id)))
+
+(defun gnus-summary-refer-article (message-id)
+ "Fetch an article specified by MESSAGE-ID."
+ (interactive "sMessage-ID: ")
+ (gnus-warp-to-article)
+ (when (and (stringp message-id)
+ (not (zerop (length message-id))))
+ (setq message-id (gnus-replace-in-string message-id " " ""))
+ ;; Construct the correct Message-ID if necessary.
+ ;; Suggested by tale@pawl.rpi.edu.
+ (unless (string-match "^<" message-id)
+ (setq message-id (concat "<" message-id)))
+ (unless (string-match ">$" message-id)
+ (setq message-id (concat message-id ">")))
+ ;; People often post MIDs from URLs, so unhex it:
+ (unless (string-match "@" message-id)
+ (setq message-id (gnus-url-unhex-string message-id)))
+ (let* ((header (gnus-id-to-header message-id))
+ (sparse (and header
+ (gnus-summary-article-sparse-p
+ (mail-header-number header))
+ (memq (mail-header-number header)
+ gnus-newsgroup-limit)))
+ number)
+ (cond
+ ;; If the article is present in the buffer we just go to it.
+ ((and header
+ (or (not (gnus-summary-article-sparse-p
+ (mail-header-number header)))
+ sparse))
+ (prog1
+ (gnus-summary-goto-article
+ (mail-header-number header) nil t)
+ (when sparse
+ (gnus-summary-update-article (mail-header-number header)))))
+ (t
+ ;; We fetch the article.
+ (catch 'found
+ (dolist (gnus-override-method (gnus-refer-article-methods))
+ (when (and (gnus-check-server gnus-override-method)
+ ;; Fetch the header,
+ (setq number (gnus-summary-insert-subject message-id)))
+ ;; and display the article.
+ (gnus-summary-select-article nil nil nil number)
+ (throw 'found t)))
+ (gnus-message 3 "Couldn't fetch article %s" message-id)))))))
+
+(defun gnus-refer-article-methods ()
+ "Return a list of referable methods."
+ (cond
+ ;; No method, so we default to current and native.
+ ((null gnus-refer-article-method)
+ (list gnus-current-select-method gnus-select-method))
+ ;; Current.
+ ((eq 'current gnus-refer-article-method)
+ (list gnus-current-select-method))
+ ;; List of select methods.
+ ((not (and (symbolp (car gnus-refer-article-method))
+ (assq (car gnus-refer-article-method) nnoo-definition-alist)))
+ (let (out)
+ (dolist (method gnus-refer-article-method)
+ (push (if (eq 'current method)
+ gnus-current-select-method
+ (if (eq 'nnir (car method))
+ (list
+ 'nnir
+ (or (cadr method)
+ (gnus-method-to-server gnus-current-select-method)))
+ method))
+ out))
+ (nreverse out)))
+ ;; One single select method.
+ (t
+ (list gnus-refer-article-method))))
+
+(defun gnus-summary-edit-parameters ()
+ "Edit the group parameters of the current group."
+ (interactive)
+ (gnus-group-edit-group gnus-newsgroup-name 'params))
+
+(defun gnus-summary-customize-parameters ()
+ "Customize the group parameters of the current group."
+ (interactive)
+ (gnus-group-customize gnus-newsgroup-name))
+
+(defun gnus-summary-enter-digest-group (&optional force)
+ "Enter an nndoc group based on the current article.
+If FORCE, force a digest interpretation. If not, try to guess
+what the document format is.
+
+To control what happens when you exit the group, see the
+`gnus-auto-select-on-ephemeral-exit' variable."
+ (interactive "P")
+ (let ((conf gnus-current-window-configuration))
+ (save-window-excursion
+ (save-excursion
+ (let (gnus-article-prepare-hook
+ gnus-display-mime-function
+ gnus-break-pages)
+ (gnus-summary-select-article))))
+ (setq gnus-current-window-configuration conf)
+ (let* ((name (format "%s-%d"
+ (gnus-group-prefixed-name
+ gnus-newsgroup-name (list 'nndoc ""))
+ (with-current-buffer gnus-summary-buffer
+ gnus-current-article)))
+ (ogroup gnus-newsgroup-name)
+ (params (append (gnus-info-params (gnus-get-info ogroup))
+ (list (cons 'to-group ogroup))
+ (list (cons 'parent-group ogroup))
+ (list (cons 'save-article-group ogroup))))
+ (case-fold-search t)
+ (buf (current-buffer))
+ dig to-address charset)
+ (with-current-buffer gnus-original-article-buffer
+ ;; Have the digest group inherit the main mail address of
+ ;; the parent article.
+ (when (setq to-address (or (gnus-fetch-field "reply-to")
+ (gnus-fetch-field "from")))
+ (setq params
+ (append
+ params
+ (list (cons 'to-address
+ (funcall gnus-decode-encoded-address-function
+ to-address))))))
+ (setq dig (nnheader-set-temp-buffer " *gnus digest buffer*"))
+ (insert-buffer-substring gnus-original-article-buffer)
+ (narrow-to-region
+ (goto-char (point-min))
+ (or (search-forward "\n\n" nil t) (point)))
+ ;; Remove lines that may lead nndoc to misinterpret the
+ ;; document type.
+ (goto-char (point-min))
+ (delete-matching-lines "^Path:\\|^From ")
+ ;; Parse charset, and decode content transfer encoding.
+ (setq charset (mail-content-type-get
+ (mail-header-parse-content-type
+ (or (gnus-fetch-field "content-type") ""))
+ 'charset))
+ (let ((encoding (gnus-fetch-field "content-transfer-encoding")))
+ (when encoding
+ (message-remove-header "content-transfer-encoding")
+ (goto-char (point-max))
+ (widen)
+ (narrow-to-region (point) (point-max))
+ (mm-decode-content-transfer-encoding
+ (intern (downcase (mail-header-strip encoding))))))
+ (widen))
+ (unwind-protect
+ (if (let ((gnus-newsgroup-ephemeral-charset
+ (if charset
+ (intern (downcase (gnus-strip-whitespace charset)))
+ gnus-newsgroup-charset))
+ (gnus-newsgroup-ephemeral-ignored-charsets
+ gnus-newsgroup-ignored-charsets))
+ (gnus-group-read-ephemeral-group
+ name `(nndoc ,name (nndoc-address ,(get-buffer dig))
+ (nndoc-article-type
+ ,(if force 'mbox 'guess)))
+ t nil nil nil
+ `((adapt-file . ,(gnus-score-file-name gnus-newsgroup-name
+ "ADAPT")))))
+ ;; Make all postings to this group go to the parent group.
+ (nconc (gnus-info-params (gnus-get-info name))
+ params)
+ ;; Couldn't select this doc group.
+ (switch-to-buffer buf)
+ (gnus-set-global-variables)
+ (gnus-configure-windows 'summary)
+ (gnus-message 3 "Article couldn't be entered?"))
+ (kill-buffer dig)))))
+
+(defun gnus-summary-read-document (n)
+ "Open a new group based on the current article(s).
+This will allow you to read digests and other similar
+documents as newsgroups.
+Obeys the standard process/prefix convention."
+ (interactive "P")
+ (let* ((ogroup gnus-newsgroup-name)
+ (params (append (gnus-info-params (gnus-get-info ogroup))
+ (list (cons 'to-group ogroup))))
+ group egroup groups vgroup)
+ (dolist (article (gnus-summary-work-articles n))
+ (setq group (format "%s-%d" gnus-newsgroup-name article))
+ (gnus-summary-remove-process-mark article)
+ (when (gnus-summary-display-article article)
+ (save-excursion ;;What for?
+ (with-temp-buffer
+ (insert-buffer-substring gnus-original-article-buffer)
+ ;; Remove some headers that may lead nndoc to make
+ ;; the wrong guess.
+ (message-narrow-to-head)
+ (goto-char (point-min))
+ (delete-matching-lines "^Path:\\|^From ")
+ (widen)
+ (if (setq egroup
+ (gnus-group-read-ephemeral-group
+ group `(nndoc ,group (nndoc-address ,(current-buffer))
+ (nndoc-article-type guess))
+ t nil t))
+ (progn
+ ;; Make all postings to this group go to the parent group.
+ (nconc (gnus-info-params (gnus-get-info egroup))
+ params)
+ (push egroup groups))
+ ;; Couldn't select this doc group.
+ (gnus-error 3 "Article couldn't be entered"))))))
+ ;; Now we have selected all the documents.
+ (cond
+ ((not groups)
+ (error "None of the articles could be interpreted as documents"))
+ ((gnus-group-read-ephemeral-group
+ (setq vgroup (format
+ "nnvirtual:%s-%s" gnus-newsgroup-name
+ (format-time-string "%Y%m%dT%H%M%S")))
+ `(nnvirtual ,vgroup (nnvirtual-component-groups ,groups))
+ t
+ (cons (current-buffer) 'summary)))
+ (t
+ (error "Couldn't select virtual nndoc group")))))
+
+(defun gnus-summary-widget-forward (arg)
+ "Move point to the next field or button in the article.
+With optional ARG, move across that many fields."
+ (interactive "p")
+ (gnus-summary-select-article)
+ (gnus-configure-windows 'article)
+ (select-window (gnus-get-buffer-window gnus-article-buffer))
+ (widget-forward arg))
+
+(defun gnus-summary-widget-backward (arg)
+ "Move point to the previous field or button in the article.
+With optional ARG, move across that many fields."
+ (interactive "p")
+ (gnus-summary-select-article)
+ (gnus-configure-windows 'article)
+ (select-window (gnus-get-buffer-window gnus-article-buffer))
+ (unless (widget-at (point))
+ (goto-char (point-max)))
+ (widget-backward arg))
+
+(defun gnus-summary-isearch-article (&optional regexp-p)
+ "Do incremental search forward on the current article.
+If REGEXP-P (the prefix) is non-nil, do regexp isearch."
+ (interactive "P")
+ (gnus-summary-select-article)
+ (gnus-configure-windows 'article)
+ (gnus-eval-in-buffer-window gnus-article-buffer
+ (save-restriction
+ (widen)
+ (isearch-forward regexp-p))))
+
+(defun gnus-summary-repeat-search-article-forward ()
+ "Repeat the previous search forwards."
+ (interactive)
+ (unless gnus-last-search-regexp
+ (error "No previous search"))
+ (gnus-summary-search-article-forward gnus-last-search-regexp))
+
+(defun gnus-summary-repeat-search-article-backward ()
+ "Repeat the previous search backwards."
+ (interactive)
+ (unless gnus-last-search-regexp
+ (error "No previous search"))
+ (gnus-summary-search-article-forward gnus-last-search-regexp t))
+
+(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))
+ (if (string-equal regexp "")
+ (setq regexp (or gnus-last-search-regexp ""))
+ (setq gnus-last-search-regexp regexp)
+ (setq gnus-article-before-search gnus-current-article))
+ ;; Intentionally set gnus-last-article.
+ (setq gnus-last-article gnus-article-before-search)
+ (let ((gnus-last-article gnus-last-article))
+ (if (gnus-summary-search-article regexp backward)
+ (gnus-summary-show-thread)
+ (signal 'search-failed (list 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."
+ ;; We have to require this here to make sure that the following
+ ;; dynamic binding isn't shadowed by autoloading.
+ (require 'gnus-async)
+ (require 'gnus-art)
+ (let ((gnus-select-article-hook nil) ;Disable hook.
+ (gnus-article-prepare-hook nil)
+ (gnus-mark-article-hook nil) ;Inhibit marking as read.
+ (gnus-use-article-prefetch nil)
+ (gnus-xmas-force-redisplay nil) ;Inhibit XEmacs redisplay.
+ (gnus-use-trees nil) ;Inhibit updating tree buffer.
+ (gnus-visual nil)
+ (gnus-keep-backlog nil)
+ (gnus-break-pages nil)
+ (gnus-summary-display-arrow nil)
+ (gnus-updated-mode-lines nil)
+ (gnus-auto-center-summary nil)
+ (sum (current-buffer))
+ (gnus-display-mime-function nil)
+ (found nil)
+ point)
+ (gnus-save-hidden-threads
+ (gnus-summary-select-article)
+ (set-buffer gnus-article-buffer)
+ (goto-char (window-point (get-buffer-window (current-buffer))))
+ (when backward
+ (forward-line -1))
+ (while (not found)
+ (gnus-message 7 "Searching article: %d..." (cdr gnus-article-current))
+ (if (if backward
+ (re-search-backward regexp nil t)
+ (re-search-forward regexp nil t))
+ ;; We found the regexp.
+ (progn
+ (setq found 'found)
+ (beginning-of-line)
+ (set-window-start
+ (get-buffer-window (current-buffer))
+ (point))
+ (forward-line 1)
+ (set-window-point
+ (get-buffer-window (current-buffer))
+ (point))
+ (set-buffer sum)
+ (setq point (point)))
+ ;; We didn't find it, so we go to the next article.
+ (set-buffer sum)
+ (setq found 'not)
+ (while (eq found 'not)
+ (if (not (if backward (gnus-summary-find-prev)
+ (gnus-summary-find-next)))
+ ;; No more articles.
+ (setq found t)
+ ;; Select the next article and adjust point.
+ (unless (gnus-summary-article-sparse-p
+ (gnus-summary-article-number))
+ (setq found nil)
+ (gnus-summary-select-article)
+ (set-buffer gnus-article-buffer)
+ (widen)
+ (goto-char (if backward (point-max) (point-min))))))))
+ (gnus-message 7 ""))
+ ;; Return whether we found the regexp.
+ (when (eq found 'found)
+ (goto-char point)
+ (sit-for 0) ;; Ensure that the point is visible in the summary window.
+ (gnus-summary-show-thread)
+ (gnus-summary-goto-subject gnus-current-article)
+ (gnus-summary-position-point)
+ t)))
+
+(defun gnus-find-matching-articles (header regexp)
+ "Return a list of all articles that match REGEXP on HEADER.
+This search includes all articles in the current group that Gnus has
+fetched headers for, whether they are displayed or not."
+ (let ((articles nil)
+ ;; Can't eta-reduce because it's a macro.
+ (func `(lambda (h) (,(intern (concat "mail-header-" header)) h)))
+ (case-fold-search t))
+ (dolist (header gnus-newsgroup-headers)
+ (when (string-match regexp (funcall func header))
+ (push (mail-header-number header) articles)))
+ (nreverse articles)))
+
+(defun gnus-summary-find-matching (header regexp &optional backward unread
+ not-case-fold not-matching)
+ "Return a list of all articles that match REGEXP on HEADER.
+The search stars on the current article and goes forwards unless
+BACKWARD is non-nil. If BACKWARD is `all', do all articles.
+If UNREAD is non-nil, only unread articles will
+be taken into consideration. If NOT-CASE-FOLD, case won't be folded
+in the comparisons. If NOT-MATCHING, return a list of all articles that
+not match REGEXP on HEADER."
+ (let ((case-fold-search (not not-case-fold))
+ articles d func)
+ (if (consp header)
+ (if (eq (car header) 'extra)
+ (setq func
+ `(lambda (h)
+ (or (cdr (assq ',(cdr header) (mail-header-extra h)))
+ "")))
+ (error "%s is an invalid header" header))
+ (unless (fboundp (intern (concat "mail-header-" header)))
+ (error "%s is not a valid header" header))
+ (setq func `(lambda (h) (,(intern (concat "mail-header-" header)) h))))
+ (dolist (d (if (eq backward 'all)
+ gnus-newsgroup-data
+ (gnus-data-find-list
+ (gnus-summary-article-number)
+ (gnus-data-list backward))))
+ (when (and (or (not unread) ; We want all articles...
+ (gnus-data-unread-p d)) ; Or just unreads.
+ (vectorp (gnus-data-header d)) ; It's not a pseudo.
+ (if not-matching
+ (not (string-match
+ regexp
+ (funcall func (gnus-data-header d))))
+ (string-match regexp
+ (funcall func (gnus-data-header d)))))
+ (push (gnus-data-number d) articles))) ; Success!
+ (nreverse articles)))
+
+(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))
+ (gnus-completing-read
+ "Header name"
+ (mapcar 'symbol-name
+ (append
+ '(Number Subject From Lines Date
+ Message-ID Xref References Body)
+ gnus-extra-headers))
+ 'require-match))
+ (read-string "Regexp: ")
+ (read-key-sequence "Command: ")
+ current-prefix-arg))
+ (when (equal header "Body")
+ (setq header ""))
+ ;; 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
+ (let (gnus-visual
+ gnus-treat-strip-trailing-blank-lines
+ gnus-treat-strip-leading-blank-lines
+ gnus-treat-strip-multiple-blank-lines
+ gnus-treat-hide-boring-headers
+ gnus-treat-fold-newsgroups
+ gnus-article-prepare-hook)
+ (gnus-message 6 "Executing %s..." (key-description command))
+ ;; We'd like to execute COMMAND interactively so as to give arguments.
+ (gnus-execute header regexp
+ `(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-summary-select-article)
+ (gnus-configure-windows 'article)
+ (gnus-eval-in-buffer-window gnus-article-buffer
+ (widen)
+ (goto-char (point-min))
+ (when gnus-break-pages
+ (gnus-narrow-to-page))))
+
+(defun gnus-summary-end-of-article ()
+ "Scroll to the end of the article."
+ (interactive)
+ (gnus-summary-select-article)
+ (gnus-configure-windows 'article)
+ (gnus-eval-in-buffer-window gnus-article-buffer
+ (widen)
+ (goto-char (point-max))
+ (recenter -3)
+ (when gnus-break-pages
+ (gnus-narrow-to-page))))
+
+(defun gnus-summary-print-truncate-and-quote (string &optional len)
+ "Truncate to LEN and quote all \"(\"'s in STRING."
+ (gnus-replace-in-string (if (and len (> (length string) len))
+ (substring string 0 len)
+ string)
+ "[()]" "\\\\\\&"))
+
+(defun gnus-summary-print-article (&optional filename n)
+ "Generate and print a PostScript image of the process-marked (mail) articles.
+
+If used interactively, print the current article if none are
+process-marked. With prefix arg, prompt the user for the name of the
+file to save in.
+
+When used from Lisp, accept two optional args FILENAME and N. N means
+to print the next N articles. If N is negative, print the N previous
+articles. If N is nil and articles have been marked with the process
+mark, print these instead.
+
+If the optional first argument FILENAME is nil, send the image to the
+printer. If FILENAME is a string, save the PostScript image in a file with
+that name. If FILENAME is a number, prompt the user for the name of the file
+to save in."
+ (interactive (list (ps-print-preprint current-prefix-arg)))
+ (dolist (article (gnus-summary-work-articles n))
+ (gnus-summary-select-article nil nil 'pseudo article)
+ (gnus-eval-in-buffer-window gnus-article-buffer
+ (gnus-print-buffer))
+ (gnus-summary-remove-process-mark article))
+ (ps-despool filename))
+
+(defun gnus-print-buffer ()
+ (let ((ps-left-header
+ (list
+ (concat "("
+ (gnus-summary-print-truncate-and-quote
+ (mail-header-subject gnus-current-headers)
+ 66) ")")
+ (concat "("
+ (gnus-summary-print-truncate-and-quote
+ (mail-header-from gnus-current-headers)
+ 45) ")")))
+ (ps-right-header
+ (list
+ "/pagenumberstring load"
+ (concat "("
+ (mail-header-date gnus-current-headers) ")"))))
+ (gnus-run-hooks 'gnus-ps-print-hook)
+ (save-excursion
+ (if ps-print-color-p
+ (ps-spool-buffer-with-faces)
+ (ps-spool-buffer)))))
+
+(declare-function gnus-flush-original-article-buffer "gnus-art" ())
+
+(defun gnus-summary-show-complete-article ()
+ "Show a complete version of the current article.
+This is only useful if you're looking at a partial version of the
+article currently."
+ (interactive)
+ (let ((gnus-keep-backlog nil)
+ (gnus-use-cache nil)
+ (gnus-agent nil)
+ (variable (intern
+ (format "%s-fetch-partial-articles"
+ (car (gnus-find-method-for-group
+ gnus-newsgroup-name)))
+ obarray))
+ old-val)
+ (unwind-protect
+ (progn
+ (setq old-val (symbol-value variable))
+ (set variable nil)
+ (gnus-flush-original-article-buffer)
+ (gnus-summary-show-article))
+ (set variable old-val))))
+
+(defun gnus-summary-show-article (&optional arg)
+ "Force redisplaying of the current article.
+If ARG (the prefix) is a number, show the article with the charset
+defined in `gnus-summary-show-article-charset-alist', or the charset
+input.
+If ARG (the prefix) is non-nil and not a number, show the article,
+but without running any of the article treatment functions
+article. Normally, the keystroke is `C-u g'. When using `C-u
+C-u g', show the raw article."
+ (interactive "P")
+ (cond
+ ((numberp arg)
+ (gnus-summary-show-article t)
+ (let ((gnus-newsgroup-charset
+ (or (cdr (assq arg gnus-summary-show-article-charset-alist))
+ (mm-read-coding-system
+ "View as charset: " ;; actually it is coding system.
+ (with-current-buffer gnus-article-buffer
+ (mm-detect-coding-region (point) (point-max))))))
+ (gnus-newsgroup-ignored-charsets 'gnus-all))
+ (gnus-summary-select-article nil 'force)
+ (let ((deps gnus-newsgroup-dependencies)
+ head header lines)
+ (with-current-buffer gnus-original-article-buffer
+ (save-restriction
+ (message-narrow-to-head)
+ (setq head (buffer-string))
+ (goto-char (point-min))
+ (unless (re-search-forward "^lines:[ \t]\\([0-9]+\\)" nil t)
+ (goto-char (point-max))
+ (widen)
+ (setq lines (1- (count-lines (point) (point-max))))))
+ (with-temp-buffer
+ (insert (format "211 %d Article retrieved.\n"
+ (cdr gnus-article-current)))
+ (insert head)
+ (if lines (insert (format "Lines: %d\n" lines)))
+ (insert ".\n")
+ (let ((nntp-server-buffer (current-buffer)))
+ (setq header (car (gnus-get-newsgroup-headers deps t))))))
+ (gnus-data-set-header
+ (gnus-data-find (cdr gnus-article-current))
+ header)
+ (gnus-summary-update-article-line
+ (cdr gnus-article-current) header)
+ (when (gnus-summary-goto-subject (cdr gnus-article-current) nil t)
+ (gnus-summary-update-secondary-mark (cdr gnus-article-current))))))
+ ((not arg)
+ ;; Select the article the normal way.
+ (if (eq mm-text-html-renderer 'shr)
+ (progn
+ (require 'shr)
+ (let ((shr-ignore-cache t))
+ (gnus-summary-select-article nil 'force)))
+ (gnus-summary-select-article nil 'force)))
+ ((equal arg '(16))
+ ;; C-u C-u g
+ (let ((gnus-inhibit-article-treatments t))
+ (gnus-summary-select-article nil 'force)))
+ (t
+ ;; We have to require this here to make sure that the following
+ ;; dynamic binding isn't shadowed by autoloading.
+ (require 'gnus-async)
+ (require 'gnus-art)
+ ;; Bind the article treatment functions to nil.
+ (let ((gnus-have-all-headers t)
+ gnus-article-prepare-hook
+ gnus-article-decode-hook
+ gnus-display-mime-function
+ gnus-break-pages)
+ ;; Destroy any MIME parts.
+ (when (gnus-buffer-live-p gnus-article-buffer)
+ (with-current-buffer gnus-article-buffer
+ (gnus-article-stop-animations)
+ (gnus-stop-downloads)
+ (mm-destroy-parts gnus-article-mime-handles)
+ ;; Set it to nil for safety reason.
+ (setq gnus-article-mime-handle-alist nil)
+ (setq gnus-article-mime-handles nil)))
+ (gnus-summary-select-article nil 'force))))
+ (gnus-summary-goto-subject gnus-current-article)
+ (gnus-summary-position-point))
+
+(defun gnus-summary-show-raw-article ()
+ "Show the raw article without any article massaging functions being run."
+ (interactive)
+ (gnus-summary-show-article t))
+
+(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")
+ (setq gnus-show-all-headers
+ (cond ((or (not (numberp arg))
+ (zerop arg))
+ (not gnus-show-all-headers))
+ ((natnump arg)
+ t)))
+ (gnus-summary-show-article))
+
+(declare-function article-narrow-to-head "gnus-art" ())
+(declare-function gnus-article-hidden-text-p "gnus-art" (type))
+(declare-function gnus-delete-wash-type "gnus-art" (type))
+(declare-function gnus-mime-buttonize-attachments-in-header
+ "gnus-art" (&optional interactive))
+
+(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")
+ (let ((window (and (gnus-buffer-live-p gnus-article-buffer)
+ (get-buffer-window gnus-article-buffer t))))
+ (with-current-buffer gnus-article-buffer
+ (widen)
+ (article-narrow-to-head)
+ (let* ((inhibit-read-only t)
+ (inhibit-point-motion-hooks t)
+ (hidden (if (numberp arg)
+ (>= arg 0)
+ (or (not (looking-at "[^ \t\n]+:"))
+ (gnus-article-hidden-text-p 'headers))))
+ s e)
+ (delete-region (point-min) (point-max))
+ (with-current-buffer gnus-original-article-buffer
+ (goto-char (setq s (point-min)))
+ (setq e (if (search-forward "\n\n" nil t)
+ (1- (point))
+ (point-max))))
+ (insert-buffer-substring gnus-original-article-buffer s e)
+ (run-hooks 'gnus-article-decode-hook)
+ (if hidden
+ (let ((gnus-treat-hide-headers nil)
+ (gnus-treat-hide-boring-headers nil))
+ (gnus-delete-wash-type 'headers)
+ (gnus-treat-article 'head))
+ (gnus-treat-article 'head)
+ ;; Add attachment buttons to the header.
+ (when gnus-mime-display-attachment-buttons-in-header
+ (gnus-mime-buttonize-attachments-in-header)))
+ (widen)
+ (if window
+ (set-window-start window (goto-char (point-min))))
+ (if gnus-break-pages
+ (gnus-narrow-to-page)
+ (when (gnus-visual-p 'page-marker)
+ (let ((inhibit-read-only t))
+ (gnus-remove-text-with-property 'gnus-prev)
+ (gnus-remove-text-with-property 'gnus-next))))
+ (gnus-set-mode-line 'article)))))
+
+(defun gnus-summary-show-all-headers ()
+ "Make all header lines visible."
+ (interactive)
+ (gnus-summary-toggle-header 1))
+
+(defun gnus-summary-caesar-message (&optional arg)
+ "Caesar rotate the current article by 13.
+With a non-numerical prefix, also rotate headers. A numerical
+prefix specifies how many places to rotate each letter forward."
+ (interactive "P")
+ (gnus-summary-select-article)
+ (let ((mail-header-separator ""))
+ (gnus-eval-in-buffer-window gnus-article-buffer
+ (save-restriction
+ (widen)
+ (let ((start (window-start))
+ (inhibit-read-only t))
+ (if (equal arg '(4))
+ (message-caesar-buffer-body nil t)
+ (message-caesar-buffer-body arg))
+ (set-window-start (get-buffer-window (current-buffer)) start)))))
+ ;; Create buttons and stuff...
+ (gnus-treat-article nil))
+
+(declare-function idna-to-unicode "ext:idna" (str))
+
+(defun gnus-summary-idna-message (&optional arg)
+ "Decode IDNA encoded domain names in the current articles.
+IDNA encoded domain names looks like `xn--bar'. If a string
+remain unencoded after running this function, it is likely an
+invalid IDNA string (`xn--bar' is invalid).
+
+You must have GNU Libidn (URL `http://www.gnu.org/software/libidn/')
+installed for this command to work."
+ (interactive "P")
+ (if (not (and (mm-coding-system-p 'utf-8)
+ (condition-case nil
+ (require 'idna)
+ (file-error)
+ (invalid-operation))
+ (symbol-value 'idna-program)
+ (executable-find (symbol-value 'idna-program))))
+ (gnus-message
+ 5 "GNU Libidn not installed properly (`idn' or `idna.el' missing)")
+ (gnus-summary-select-article)
+ (let ((mail-header-separator ""))
+ (gnus-eval-in-buffer-window gnus-article-buffer
+ (save-restriction
+ (widen)
+ (let ((start (window-start))
+ buffer-read-only)
+ (while (re-search-forward "\\(xn--[-0-9a-z]+\\)" nil t)
+ (replace-match (idna-to-unicode (match-string 1))))
+ (set-window-start (get-buffer-window (current-buffer)) start)))))))
+
+(defun gnus-summary-morse-message (&optional arg)
+ "Morse decode the current article."
+ (interactive "P")
+ (gnus-summary-select-article)
+ (let ((mail-header-separator ""))
+ (gnus-eval-in-buffer-window gnus-article-buffer
+ (save-excursion
+ (save-restriction
+ (widen)
+ (let ((pos (window-start))
+ (inhibit-read-only t))
+ (goto-char (point-min))
+ (when (message-goto-body)
+ (gnus-narrow-to-body))
+ (goto-char (point-min))
+ (while (search-forward "·" (point-max) t)
+ (replace-match "."))
+ (unmorse-region (point-min) (point-max))
+ (widen)
+ (set-window-start (get-buffer-window (current-buffer)) pos)))))))
+
+(defun gnus-summary-stop-page-breaking ()
+ "Stop page breaking in the current article."
+ (interactive)
+ (gnus-summary-select-article)
+ (gnus-eval-in-buffer-window gnus-article-buffer
+ (widen)
+ (when (gnus-visual-p 'page-marker)
+ (let ((inhibit-read-only t))
+ (gnus-remove-text-with-property 'gnus-prev)
+ (gnus-remove-text-with-property 'gnus-next))
+ (setq gnus-page-broken nil))))
+
+(defun gnus-summary-move-article (&optional n to-newsgroup
+ select-method action)
+ "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 non-nil, do not move to a specific newsgroup, but
+re-spool using this method.
+
+When called interactively with TO-NEWSGROUP being nil, the value of
+the variable `gnus-move-split-methods' is used for finding a default
+for the target newsgroup.
+
+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.
+
+ACTION can be either `move' (the default), `crosspost' or `copy'."
+ (interactive "P")
+ (unless action
+ (setq action 'move))
+ ;; Check whether the source group supports the required functions.
+ (cond ((and (eq action 'move)
+ (not (gnus-check-backend-function
+ 'request-move-article gnus-newsgroup-name)))
+ (error "The current group does not support article moving"))
+ ((and (eq action 'crosspost)
+ (not (gnus-check-backend-function
+ 'request-replace-article gnus-newsgroup-name)))
+ (error "The current group does not support article editing")))
+ (let ((articles (gnus-summary-work-articles n))
+ (prefix (if (gnus-check-backend-function
+ 'request-move-article gnus-newsgroup-name)
+ (funcall gnus-move-group-prefix-function
+ gnus-newsgroup-name)
+ ""))
+ (names '((move "Move" "Moving")
+ (copy "Copy" "Copying")
+ (crosspost "Crosspost" "Crossposting")))
+ (copy-buf (save-excursion
+ (nnheader-set-temp-buffer " *copy article*")))
+ art-group to-method new-xref article to-groups
+ articles-to-update-marks encoded)
+ (unless (assq action names)
+ (error "Unknown action %s" action))
+ ;; Read the newsgroup name.
+ (when (and (not to-newsgroup)
+ (not select-method))
+ (if (and gnus-move-split-methods
+ (not
+ (and (memq gnus-current-article articles)
+ (gnus-buffer-live-p gnus-original-article-buffer))))
+ ;; When `gnus-move-split-methods' is non-nil, we have to
+ ;; select an article to give `gnus-read-move-group-name' an
+ ;; opportunity to suggest an appropriate default. However,
+ ;; we needn't render or mark the article.
+ (let ((gnus-display-mime-function nil)
+ (gnus-article-prepare-hook nil)
+ (gnus-mark-article-hook nil))
+ (gnus-summary-select-article nil nil nil (car articles))))
+ (setq to-newsgroup (gnus-read-move-group-name
+ (cadr (assq action names))
+ (symbol-value
+ (intern (format "gnus-current-%s-group" action)))
+ articles prefix)
+ encoded to-newsgroup
+ to-method (gnus-server-to-method (gnus-group-method to-newsgroup)))
+ (set (intern (format "gnus-current-%s-group" action))
+ (mm-decode-coding-string
+ to-newsgroup
+ (gnus-group-name-charset to-method to-newsgroup))))
+ (unless to-method
+ (setq to-method (or select-method
+ (gnus-server-to-method
+ (gnus-group-method to-newsgroup)))))
+ (setq to-newsgroup
+ (or encoded
+ (and to-newsgroup
+ (mm-encode-coding-string
+ to-newsgroup
+ (gnus-group-name-charset to-method to-newsgroup)))))
+ ;; Check the method we are to move this article to...
+ (unless (gnus-check-backend-function
+ 'request-accept-article (car to-method))
+ (error "%s does not support article copying" (car to-method)))
+ (unless (gnus-check-server to-method)
+ (error "Can't open server %s" (car to-method)))
+ (gnus-message 6 "%s to %s: %s..."
+ (caddr (assq action names))
+ (or (car select-method)
+ (gnus-group-decoded-name to-newsgroup))
+ articles)
+ (while articles
+ (setq article (pop articles))
+ ;; Set any marks that may have changed in the summary buffer.
+ (when gnus-preserve-marks
+ (gnus-summary-push-marks-to-backend article))
+ (setq
+ art-group
+ (cond
+ ;; Move the article.
+ ((eq action 'move)
+ ;; Remove this article from future suppression.
+ (gnus-dup-unsuppress-article article)
+ (let* ((from-method (gnus-find-method-for-group
+ gnus-newsgroup-name))
+ (to-method (or select-method
+ (gnus-find-method-for-group to-newsgroup)))
+ (move-is-internal (gnus-server-equal from-method to-method)))
+ (gnus-request-move-article
+ article ; Article to move
+ gnus-newsgroup-name ; From newsgroup
+ (nth 1 (gnus-find-method-for-group
+ gnus-newsgroup-name)) ; Server
+ (list 'gnus-request-accept-article
+ to-newsgroup (list 'quote select-method)
+ (not articles) t) ; Accept form
+ (not articles) ; Only save nov last time
+ (and move-is-internal
+ to-newsgroup ; Not respooling
+ ; Is this move internal?
+ (gnus-group-real-name to-newsgroup)))))
+ ;; Copy the article.
+ ((eq action 'copy)
+ (with-current-buffer copy-buf
+ (when (gnus-request-article-this-buffer article
+ gnus-newsgroup-name)
+ (save-restriction
+ (nnheader-narrow-to-headers)
+ (dolist (hdr gnus-copy-article-ignored-headers)
+ (message-remove-header hdr t)))
+ (gnus-request-accept-article
+ to-newsgroup select-method (not articles) t))))
+ ;; Crosspost the article.
+ ((eq action 'crosspost)
+ (let ((xref (message-tokenize-header
+ (mail-header-xref (gnus-summary-article-header
+ article))
+ " ")))
+ (setq new-xref (concat (gnus-group-real-name gnus-newsgroup-name)
+ ":" (number-to-string article)))
+ (unless xref
+ (setq xref (list (system-name))))
+ (setq new-xref
+ (concat
+ (mapconcat 'identity
+ (delete "Xref:" (delete new-xref xref))
+ " ")
+ " " new-xref))
+ (with-current-buffer copy-buf
+ ;; First put the article in the destination group.
+ (gnus-request-article-this-buffer article gnus-newsgroup-name)
+ (when (consp (setq art-group
+ (gnus-request-accept-article
+ to-newsgroup select-method (not articles)
+ t)))
+ (setq new-xref (concat new-xref " " (car art-group)
+ ":"
+ (number-to-string (cdr art-group))))
+ ;; Now we have the new Xrefs header, so we insert
+ ;; it and replace the new article.
+ (nnheader-replace-header "Xref" new-xref)
+ (gnus-request-replace-article
+ (cdr art-group) to-newsgroup (current-buffer) t)
+ art-group))))))
+ (cond
+ ((not art-group)
+ (gnus-message 1 "Couldn't %s article %s: %s"
+ (cadr (assq action names)) article
+ (nnheader-get-report (car to-method))))
+ ((eq art-group 'junk)
+ (when (eq action 'move)
+ (gnus-summary-mark-article article gnus-canceled-mark)
+ (gnus-message 4 "Deleted article %s" article)
+ ;; run the delete hook
+ (run-hook-with-args 'gnus-summary-article-delete-hook
+ action
+ (gnus-data-header
+ (assoc article (gnus-data-list nil)))
+ gnus-newsgroup-name nil
+ select-method)))
+ (t
+ (let* ((pto-group (gnus-group-prefixed-name
+ (car art-group) to-method))
+ (info (gnus-get-info pto-group))
+ (to-group (gnus-info-group info))
+ to-marks)
+ ;; Update the group that has been moved to.
+ (when (and info
+ (memq action '(move copy)))
+ (unless (member to-group to-groups)
+ (push to-group to-groups))
+
+ (when (and (not (memq article gnus-newsgroup-unreads))
+ (cdr art-group))
+ (push 'read to-marks)
+ (gnus-info-set-read
+ info (gnus-add-to-range (gnus-info-read info)
+ (list (cdr art-group)))))
+
+ ;; See whether the article is to be put in the cache.
+ (let* ((expirable (gnus-group-auto-expirable-p to-group))
+ (marks (if expirable
+ gnus-article-mark-lists
+ (delete '(expirable . expire)
+ (copy-sequence
+ gnus-article-mark-lists))))
+ (to-article (cdr art-group)))
+
+ ;; Enter the article into the cache in the new group,
+ ;; if that is required.
+ (when (and to-article
+ gnus-use-cache)
+ (gnus-cache-possibly-enter-article
+ to-group to-article
+ (memq article gnus-newsgroup-marked)
+ (memq article gnus-newsgroup-dormant)
+ (memq article gnus-newsgroup-unreads)))
+
+ (when (and gnus-preserve-marks
+ to-article)
+ ;; Copy any marks over to the new group.
+ (when (and (equal to-group gnus-newsgroup-name)
+ (not (memq article gnus-newsgroup-unreads)))
+ ;; Mark this article as read in this group.
+ (push (cons to-article gnus-read-mark)
+ gnus-newsgroup-reads)
+ ;; Increase the active status of this group.
+ (setcdr (gnus-active to-group) to-article)
+ (setcdr gnus-newsgroup-active to-article))
+
+ (while marks
+ (when (eq (gnus-article-mark-to-type (cdar marks)) 'list)
+ (when (memq article (symbol-value
+ (intern (format "gnus-newsgroup-%s"
+ (caar marks)))))
+ (push (cdar marks) to-marks)
+ ;; If the other group is the same as this group,
+ ;; then we have to add the mark to the list.
+ (when (equal to-group gnus-newsgroup-name)
+ (set (intern (format "gnus-newsgroup-%s"
+ (caar marks)))
+ (cons to-article
+ (symbol-value
+ (intern (format "gnus-newsgroup-%s"
+ (caar marks)))))))
+ ;; Copy the marks to other group.
+ (gnus-add-marked-articles
+ to-group (cdar marks) (list to-article) info)))
+ (setq marks (cdr marks)))
+
+ (when (and expirable
+ gnus-mark-copied-or-moved-articles-as-expirable
+ (not (memq 'expire to-marks)))
+ ;; Mark this article as expirable.
+ (push 'expire to-marks)
+ (when (equal to-group gnus-newsgroup-name)
+ (push to-article gnus-newsgroup-expirable))
+ ;; Copy the expirable mark to other group.
+ (gnus-add-marked-articles
+ to-group 'expire (list to-article) info))
+
+ (when (and to-marks
+ (gnus-method-option-p
+ (gnus-find-method-for-group to-group)
+ 'server-marks))
+ (gnus-request-set-mark
+ to-group (list (list (list to-article) 'add to-marks)))))
+
+ (gnus-dribble-enter
+ (concat "(gnus-group-set-info '"
+ (gnus-prin1-to-string (gnus-get-info to-group))
+ ")")
+ (concat "^(gnus-group-set-info '(\""
+ (regexp-quote to-group) "\""))))
+
+ ;; Update the Xref header in this article to point to
+ ;; the new crossposted article we have just created.
+ (when (eq action 'crosspost)
+ (with-current-buffer copy-buf
+ (gnus-request-article-this-buffer article gnus-newsgroup-name)
+ (nnheader-replace-header "Xref" new-xref)
+ (gnus-request-replace-article
+ article gnus-newsgroup-name (current-buffer) t)))
+
+ ;; run the move/copy/crosspost/respool hook
+ (run-hook-with-args 'gnus-summary-article-move-hook
+ action
+ (gnus-data-header
+ (assoc article (gnus-data-list nil)))
+ gnus-newsgroup-name
+ to-newsgroup
+ select-method))
+
+ ;;;!!!Why is this necessary?
+ (set-buffer gnus-summary-buffer)
+
+ (when (eq action 'move)
+ (save-excursion
+ (gnus-summary-goto-subject article)
+ (gnus-summary-mark-article article gnus-canceled-mark)))))
+ (push article articles-to-update-marks))
+
+ (save-excursion
+ (apply 'gnus-summary-remove-process-mark articles-to-update-marks))
+ ;; Re-activate all groups that have been moved to.
+ (with-current-buffer gnus-group-buffer
+ (let ((gnus-group-marked to-groups))
+ (gnus-group-get-new-news-this-group nil t)))
+
+ (gnus-kill-buffer copy-buf)
+ (gnus-summary-position-point)
+ (gnus-set-mode-line 'summary)))
+
+(defun gnus-summary-push-marks-to-backend (article)
+ (let ((set nil)
+ (del nil)
+ (marks gnus-article-mark-lists))
+ (unless (memq article gnus-newsgroup-unreads)
+ (push 'read set))
+ (while marks
+ (if (and (eq (gnus-article-mark-to-type (cdar marks)) 'list)
+ (memq article (symbol-value
+ (intern (format "gnus-newsgroup-%s"
+ (caar marks))))))
+ (push (cdar marks) set)
+ (push (cdar marks) del))
+ (pop marks))
+ (gnus-request-set-mark gnus-newsgroup-name `(((,article) set ,set)
+ ((,article) del ,del)))))
+
+(defun gnus-summary-copy-article (&optional n to-newsgroup select-method)
+ "Copy the current article to some other group.
+If TO-NEWSGROUP is string, do not prompt for a newsgroup to copy to.
+When called interactively, if TO-NEWSGROUP is nil, use the value of
+the variable `gnus-move-split-methods' for finding a default target
+newsgroup.
+If SELECT-METHOD is non-nil, do not move to a specific newsgroup, but
+re-spool using this method."
+ (interactive "P")
+ (gnus-summary-move-article n to-newsgroup select-method 'copy))
+
+(defun gnus-summary-crosspost-article (&optional n)
+ "Crosspost the current article to some other group."
+ (interactive "P")
+ (gnus-summary-move-article n nil nil 'crosspost))
+
+(defcustom gnus-summary-respool-default-method nil
+ "Default method type for respooling an article.
+If nil, use to the current newsgroup method."
+ :type 'symbol
+ :group 'gnus-summary-mail)
+
+(defun gnus-summary-respool-article (&optional n 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
+ (list current-prefix-arg
+ (let* ((methods (mapcar #'car (gnus-methods-using 'respool)))
+ (methname
+ (symbol-name (or gnus-summary-respool-default-method
+ (car (gnus-find-method-for-group
+ gnus-newsgroup-name)))))
+ (method
+ (gnus-completing-read
+ "Backend to use when respooling"
+ methods t nil 'gnus-mail-method-history methname))
+ ms)
+ (cond
+ ((zerop (length (setq ms (gnus-servers-using-backend
+ (intern method)))))
+ (list (intern method) ""))
+ ((= 1 (length ms))
+ (car ms))
+ (t
+ (let ((ms-alist (mapcar (lambda (m) (cons (cadr m) m)) ms)))
+ (cdr (assoc (gnus-completing-read "Server name" ms-alist t)
+ ms-alist))))))))
+ (unless method
+ (error "No method given for respooling"))
+ (if (assoc (symbol-name
+ (car (gnus-find-method-for-group gnus-newsgroup-name)))
+ (gnus-methods-using 'respool))
+ (gnus-summary-move-article n nil method)
+ (gnus-summary-copy-article n nil method)))
+
+(defun gnus-summary-import-article (file &optional edit)
+ "Import an arbitrary file into a mail newsgroup."
+ (interactive "fImport file: \nP")
+ (let ((group gnus-newsgroup-name)
+ (now (current-time))
+ atts lines group-art)
+ (unless (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))
+ (with-current-buffer (gnus-get-buffer-create " *import file*")
+ (erase-buffer)
+ (nnheader-insert-file-contents file)
+ (goto-char (point-min))
+ (if (nnheader-article-p)
+ (save-restriction
+ (goto-char (point-min))
+ (search-forward "\n\n" nil t)
+ (narrow-to-region (point-min) (1- (point)))
+ (goto-char (point-min))
+ (unless (re-search-forward "^date:" nil t)
+ (goto-char (point-max))
+ (insert "Date: " (message-make-date (nth 5 atts)) "\n")))
+ ;; This doesn't look like an article, so we fudge some headers.
+ (setq atts (file-attributes file)
+ lines (count-lines (point-min) (point-max)))
+ (insert "From: " (read-string "From: ") "\n"
+ "Subject: " (read-string "Subject: ") "\n"
+ "Date: " (message-make-date (nth 5 atts)) "\n"
+ "Message-ID: " (message-make-message-id) "\n"
+ "Lines: " (int-to-string lines) "\n"
+ "Chars: " (int-to-string (nth 7 atts)) "\n\n"))
+ (setq group-art (gnus-request-accept-article group nil t))
+ (kill-buffer (current-buffer)))
+ (setq gnus-newsgroup-active (gnus-activate-group group))
+ (forward-line 1)
+ (gnus-summary-goto-article (cdr group-art) nil t)
+ (when edit
+ (gnus-summary-edit-article))))
+
+(defun gnus-summary-create-article ()
+ "Create an article in a mail newsgroup."
+ (interactive)
+ (let ((group gnus-newsgroup-name)
+ (now (current-time))
+ group-art)
+ (unless (gnus-check-backend-function 'request-accept-article group)
+ (error "%s does not support article importing" group))
+ (with-current-buffer (gnus-get-buffer-create " *import file*")
+ (erase-buffer)
+ (goto-char (point-min))
+ ;; This doesn't look like an article, so we fudge some headers.
+ (insert "From: " (read-string "From: ") "\n"
+ "Subject: " (read-string "Subject: ") "\n"
+ "Date: " (message-make-date now) "\n"
+ "Message-ID: " (message-make-message-id) "\n")
+ (setq group-art (gnus-request-accept-article group nil t))
+ (kill-buffer (current-buffer)))
+ (setq gnus-newsgroup-active (gnus-activate-group group))
+ (forward-line 1)
+ (gnus-summary-goto-article (cdr group-art) nil t)
+ (gnus-summary-edit-article)))
+
+(defun gnus-summary-article-posted-p ()
+ "Say whether the current (mail) article is available from news as well.
+This will be the case if the article has both been mailed and posted."
+ (interactive)
+ (let ((id (mail-header-references (gnus-summary-article-header)))
+ (gnus-override-method (car (gnus-refer-article-methods))))
+ (if (gnus-request-head id "")
+ (gnus-message 2 "The current message was found on %s"
+ gnus-override-method)
+ (gnus-message 2 "The current message couldn't be found on %s"
+ gnus-override-method)
+ nil)))
+
+(defun gnus-summary-expire-articles (&optional now)
+ "Expire all articles that are marked as expirable in the current group."
+ (interactive)
+ (when (and (not gnus-group-is-exiting-without-update-p)
+ (gnus-check-backend-function
+ 'request-expire-articles gnus-newsgroup-name))
+ ;; This backend supports expiry.
+ (let* ((total (gnus-group-total-expirable-p gnus-newsgroup-name))
+ (expirable
+ (gnus-list-range-difference
+ (if total
+ (progn
+ ;; We need to update the info for
+ ;; this group for `gnus-list-of-read-articles'
+ ;; to give us the right answer.
+ (gnus-run-hooks 'gnus-exit-group-hook)
+ (gnus-summary-update-info)
+ (gnus-list-of-read-articles gnus-newsgroup-name))
+ (setq gnus-newsgroup-expirable
+ (sort gnus-newsgroup-expirable '<)))
+ gnus-newsgroup-unexist))
+ (expiry-wait (if now 'immediate
+ (gnus-group-find-parameter
+ gnus-newsgroup-name 'expiry-wait)))
+ (nnmail-expiry-target
+ (or (gnus-group-find-parameter gnus-newsgroup-name 'expiry-target)
+ nnmail-expiry-target))
+ es)
+ (when expirable
+ ;; There are expirable articles in this group, so we run them
+ ;; through the expiry process.
+ (gnus-message 6 "Expiring articles...")
+ (when (gnus-check-group gnus-newsgroup-name)
+ ;; The list of articles that weren't expired is returned.
+ (save-excursion
+ (if expiry-wait
+ (let ((nnmail-expiry-wait-function nil)
+ (nnmail-expiry-wait expiry-wait))
+ (setq es (gnus-request-expire-articles
+ expirable gnus-newsgroup-name)))
+ (setq es (gnus-request-expire-articles
+ expirable gnus-newsgroup-name)))
+ (unless total
+ (setq gnus-newsgroup-expirable es))
+ ;; We go through the old list of expirable, and mark all
+ ;; really expired articles as nonexistent.
+ (unless (eq es expirable) ;If nothing was expired, we don't mark.
+ (let ((gnus-use-cache nil))
+ (dolist (article expirable)
+ (when (and (not (memq article es))
+ (gnus-data-find article))
+ (gnus-summary-mark-article article gnus-canceled-mark)
+ (run-hook-with-args
+ 'gnus-summary-article-expire-hook
+ 'delete
+ (gnus-data-header (assoc article (gnus-data-list nil)))
+ gnus-newsgroup-name
+ (cond
+ ((stringp nnmail-expiry-target) nnmail-expiry-target)
+ ((eq nnmail-expiry-target 'delete) nil)
+ (t
+ (let ((rescall (funcall nnmail-expiry-target
+ gnus-newsgroup-name)))
+ (if (stringp rescall) rescall nil))))
+ nil)))))))
+ (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-yes-or-no-p
+ "Are you really, really sure you want to delete all expirable messages? ")
+ (error "Phew!"))
+ (gnus-summary-expire-articles t))
+
+;; 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 your 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.
+
+If `gnus-novice-user' is non-nil you will be asked for
+confirmation before the articles are deleted."
+ (interactive "P")
+ (unless (gnus-check-backend-function 'request-expire-articles
+ gnus-newsgroup-name)
+ (error "The current newsgroup does not support article deletion"))
+ (unless (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
+ (error "Couldn't open server"))
+ ;; Compute the list of articles to delete.
+ (let ((articles (sort (copy-sequence (gnus-summary-work-articles n)) '<))
+ (nnmail-expiry-target 'delete)
+ not-deleted)
+ (if (and gnus-novice-user
+ (not (gnus-yes-or-no-p
+ (format "Do you really want to delete %s forever? "
+ (if (> (length articles) 1)
+ (format "these %s articles" (length articles))
+ "this article")))))
+ ()
+ ;; Delete the articles.
+ (setq not-deleted (gnus-request-expire-articles
+ articles gnus-newsgroup-name 'force))
+ (save-excursion
+ (while articles
+ (gnus-summary-remove-process-mark (car articles))
+ ;; The backend might not have been able to delete the article
+ ;; after all.
+ (unless (memq (car articles) not-deleted)
+ (gnus-summary-mark-article (car articles) gnus-canceled-mark)
+ (let* ((article (car articles))
+ (ghead (gnus-data-header
+ (assoc article (gnus-data-list nil)))))
+ (run-hook-with-args 'gnus-summary-article-delete-hook
+ 'delete ghead gnus-newsgroup-name nil
+ nil)))
+ (setq articles (cdr articles))))
+ (when not-deleted
+ (gnus-message 4 "Couldn't delete articles %s" not-deleted)))
+ (gnus-summary-position-point)
+ (gnus-set-mode-line 'summary)
+ not-deleted))
+
+(defun gnus-summary-edit-article (&optional arg)
+ "Edit the current article.
+This will have permanent effect only in mail groups.
+If ARG is nil, edit the decoded articles.
+If ARG is 1, edit the raw articles.
+If ARG is 2, edit the raw articles even in read-only groups.
+If ARG is 3, edit the articles with the current handles.
+Otherwise, allow editing of articles even in read-only
+groups."
+ (interactive "P")
+ (let (force raw current-handles)
+ (cond
+ ((null arg))
+ ((eq arg 1)
+ (setq raw t))
+ ((eq arg 2)
+ (setq raw t
+ force t))
+ ((eq arg 3)
+ (setq current-handles
+ (and (gnus-buffer-live-p gnus-article-buffer)
+ (with-current-buffer gnus-article-buffer
+ (prog1
+ gnus-article-mime-handles
+ (setq gnus-article-mime-handles nil))))))
+ (t
+ (setq force t)))
+ (when (and raw (not force)
+ (member gnus-newsgroup-name '("nndraft:delayed"
+ "nndraft:drafts"
+ "nndraft:queue")))
+ (error "Can't edit the raw article in group %s"
+ gnus-newsgroup-name))
+ (with-current-buffer gnus-summary-buffer
+ (let ((mail-parse-charset gnus-newsgroup-charset)
+ (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets))
+ (gnus-set-global-variables)
+ (when (and (not force)
+ (gnus-group-read-only-p))
+ (error "The current newsgroup does not support article editing"))
+ (gnus-summary-show-article t)
+ (when (and (not raw) (gnus-buffer-live-p gnus-article-buffer))
+ (with-current-buffer gnus-article-buffer
+ (mm-enable-multibyte)))
+ (if (member gnus-newsgroup-name '("nndraft:delayed" "nndraft:drafts"))
+ (setq raw t))
+ (gnus-article-edit-article
+ (if raw 'ignore
+ `(lambda ()
+ (let ((mbl mml-buffer-list))
+ (setq mml-buffer-list nil)
+ (let ((rfc2047-quote-decoded-words-containing-tspecials t))
+ (mime-to-mml ,'current-handles))
+ (let ((mbl1 mml-buffer-list))
+ (setq mml-buffer-list mbl)
+ (set (make-local-variable 'mml-buffer-list) mbl1))
+ (gnus-make-local-hook 'kill-buffer-hook)
+ (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t))))
+ `(lambda (no-highlight)
+ (let ((mail-parse-charset ',gnus-newsgroup-charset)
+ (message-options message-options)
+ (message-options-set-recipient)
+ (mail-parse-ignored-charsets
+ ',gnus-newsgroup-ignored-charsets)
+ (rfc2047-header-encoding-alist
+ ',(let ((charset (gnus-group-name-charset
+ (gnus-find-method-for-group
+ gnus-newsgroup-name)
+ gnus-newsgroup-name)))
+ (append (list (cons "Newsgroups" charset)
+ (cons "Followup-To" charset)
+ (cons "Xref" charset))
+ rfc2047-header-encoding-alist))))
+ ,(if (not raw) '(progn
+ (mml-to-mime)
+ (mml-destroy-buffers)
+ (remove-hook 'kill-buffer-hook
+ 'mml-destroy-buffers t)
+ (kill-local-variable 'mml-buffer-list)))
+ (gnus-summary-edit-article-done
+ ,(or (mail-header-references gnus-current-headers) "")
+ ,(gnus-group-read-only-p)
+ ,gnus-summary-buffer no-highlight))))))))
+
+(defalias 'gnus-summary-edit-article-postpone 'gnus-article-edit-exit)
+
+(defun gnus-summary-edit-article-done (&optional references read-only buffer
+ no-highlight)
+ "Make edits to the current article permanent."
+ (interactive)
+ (save-excursion
+ ;; The buffer restriction contains the entire article if it exists.
+ (when (article-goto-body)
+ (let ((lines (count-lines (point) (point-max)))
+ (length (- (point-max) (point)))
+ (case-fold-search t)
+ (body (point-marker)))
+ (goto-char (point-min))
+ (when (re-search-forward "^content-length:[ \t]\\([0-9]+\\)" body t)
+ (delete-region (match-beginning 1) (match-end 1))
+ (insert (number-to-string length)))
+ (goto-char (point-min))
+ (when (re-search-forward
+ "^x-content-length:[ \t]\\([0-9]+\\)" body t)
+ (delete-region (match-beginning 1) (match-end 1))
+ (insert (number-to-string length)))
+ (goto-char (point-min))
+ (when (re-search-forward "^lines:[ \t]\\([0-9]+\\)" body t)
+ (delete-region (match-beginning 1) (match-end 1))
+ (insert (number-to-string lines))))))
+ ;; Replace the article.
+ (let ((buf (current-buffer))
+ (article (cdr gnus-article-current))
+ replace-result)
+ (with-temp-buffer
+ (insert-buffer-substring buf)
+ (if (and (not read-only)
+ (not (setq replace-result
+ (gnus-request-replace-article
+ article (car gnus-article-current)
+ (current-buffer) t))))
+ (error "Couldn't replace article")
+ ;; If we got a number back, then that's the new article number
+ ;; for this article. Otherwise, the article number didn't change.
+ (when (numberp replace-result)
+ (with-current-buffer gnus-summary-buffer
+ (setq gnus-newsgroup-limit (delq article gnus-newsgroup-limit))
+ (gnus-summary-limit gnus-newsgroup-limit)
+ (setq article replace-result)
+ (gnus-summary-goto-subject article t)))
+ ;; Update the summary buffer.
+ (if (and references
+ (equal (message-tokenize-header references " ")
+ (message-tokenize-header
+ (or (message-fetch-field "references") "") " ")))
+ ;; We only have to update this line.
+ (save-excursion
+ (save-restriction
+ (message-narrow-to-head)
+ (let ((head (buffer-substring-no-properties
+ (point-min) (point-max)))
+ header)
+ (with-temp-buffer
+ (insert (format "211 %d Article retrieved.\n" article))
+ (insert head)
+ (insert ".\n")
+ (let ((nntp-server-buffer (current-buffer)))
+ (setq header (car (gnus-get-newsgroup-headers nil t))))
+ (with-current-buffer gnus-summary-buffer
+ (gnus-data-set-header (gnus-data-find article) header)
+ (gnus-summary-update-article-line article header)
+ (if (gnus-summary-goto-subject article nil t)
+ (gnus-summary-update-secondary-mark article)))))))
+ ;; Update threads.
+ (set-buffer (or buffer gnus-summary-buffer))
+ (gnus-summary-update-article article)
+ (if (gnus-summary-goto-subject article nil t)
+ (gnus-summary-update-secondary-mark article)))
+ ;; Prettify the article buffer again.
+ (unless no-highlight
+ (with-current-buffer gnus-article-buffer
+ ;;!!! Fix this -- article should be rehighlighted.
+ ;;(gnus-run-hooks 'gnus-article-display-hook)
+ (set-buffer gnus-original-article-buffer)
+ (gnus-request-article
+ article (car gnus-article-current) (current-buffer))))
+ ;; Prettify the summary buffer line.
+ (when (gnus-visual-p 'summary-highlight 'highlight)
+ (gnus-run-hooks 'gnus-visual-mark-article-hook))))))
+
+(defun gnus-summary-edit-wash (key)
+ "Perform editing command KEY in the article buffer."
+ (interactive
+ (list
+ (progn
+ (message "%s" (concat (this-command-keys) "- "))
+ (read-char))))
+ (message "")
+ (gnus-summary-edit-article)
+ (execute-kbd-macro (concat (this-command-keys) key))
+ (gnus-article-edit-done))
+
+;;; Respooling
+
+(defvar nnimap-split-fancy)
+(defvar nnimap-split-methods)
+
+(defun gnus-summary-respool-query (&optional silent trace)
+ "Query where the respool algorithm would put this article."
+ (interactive)
+ (let (gnus-mark-article-hook)
+ (gnus-summary-select-article)
+ (with-current-buffer gnus-original-article-buffer
+ (let ((groups
+ (if (eq (car (gnus-find-method-for-group gnus-newsgroup-name))
+ 'nnimap)
+ ;; nnimap has its own splitting variables.
+ (let ((nnmail-split-methods
+ (cond
+ ((eq nnimap-split-methods 'default)
+ nnmail-split-methods)
+ (nnimap-split-methods
+ nnimap-split-methods)
+ (nnimap-split-fancy
+ 'nnmail-split-fancy)))
+ (nnmail-split-fancy (or nnimap-split-fancy
+ nnmail-split-fancy)))
+ (nnmail-article-group 'identity trace))
+ (nnmail-article-group 'identity trace))))
+ (unless silent
+ (if groups
+ (message "This message would go to %s"
+ (mapconcat 'car groups ", "))
+ (message "This message would go to no groups"))
+ groups)))))
+
+(defun gnus-summary-respool-trace ()
+ "Trace where the respool algorithm would put this article.
+Display a buffer showing all fancy splitting patterns which matched."
+ (interactive)
+ (gnus-summary-respool-query nil t))
+
+;; Summary marking commands.
+
+(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")
+ (when unmark
+ (setq unmark (prefix-numeric-value unmark)))
+ (let ((count
+ (gnus-summary-mark-same-subject
+ (gnus-summary-article-subject) 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-article-subject)))
+ (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")
+ (when unmark
+ (setq unmark (prefix-numeric-value unmark)))
+ (let ((count
+ (gnus-summary-mark-same-subject
+ (gnus-summary-article-subject) unmark)))
+ ;; If marked as read, go to next unread subject.
+ (when (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-find-subject 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-find-subject 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-find-subject 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")
+ (if (and (null n) (gnus-region-active-p))
+ (gnus-uu-mark-region (region-beginning) (region-end) unmark)
+ (setq n (prefix-numeric-value n))
+ (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)))
+ (when (/= 0 n)
+ (gnus-message 7 "No more articles"))
+ (gnus-summary-recenter)
+ (gnus-summary-position-point)
+ n)))
+
+(defun gnus-summary-unmark-as-processable (n)
+ "Remove the process mark from the next N articles.
+If N is negative, unmark backward instead. The difference between N and
+the actual number of articles unmarked 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-point))
+
+(defun gnus-summary-add-mark (article type)
+ "Mark ARTICLE with a mark of TYPE."
+ (let ((vtype (car (assq type gnus-article-mark-lists)))
+ var)
+ (if (not vtype)
+ (error "No such mark type: %s" type)
+ (setq var (intern (format "gnus-newsgroup-%s" type)))
+ (set var (cons article (symbol-value var)))
+ (if (memq type '(processable cached replied forwarded recent saved))
+ (gnus-summary-update-secondary-mark article)
+ ;;; !!! This is bogus. We should find out what primary
+ ;;; !!! mark we want to set.
+ (gnus-summary-update-mark gnus-del-mark 'unread)))))
+
+(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-as-spam (n)
+ "Mark N articles forward as spam.
+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-spam-mark))
+
+(defun gnus-summary-mark-article-as-replied (article)
+ "Mark ARTICLE as replied to and update the summary line.
+ARTICLE can also be a list of articles."
+ (interactive (list (gnus-summary-article-number)))
+ (let ((articles (if (listp article) article (list article))))
+ (dolist (article articles)
+ (unless (numberp article)
+ (error "%s is not a number" article))
+ (push article gnus-newsgroup-replied)
+ (let ((inhibit-read-only t))
+ (when (gnus-summary-goto-subject article nil t)
+ (gnus-summary-update-secondary-mark article))))))
+
+(defun gnus-summary-mark-article-as-forwarded (article)
+ "Mark ARTICLE as forwarded and update the summary line.
+ARTICLE can also be a list of articles."
+ (let ((articles (if (listp article) article (list article))))
+ (dolist (article articles)
+ (push article gnus-newsgroup-forwarded)
+ (let ((inhibit-read-only t))
+ (when (gnus-summary-goto-subject article nil t)
+ (gnus-summary-update-secondary-mark article))))))
+
+(defun gnus-summary-set-bookmark (article)
+ "Set a bookmark in current article."
+ (interactive (list (gnus-summary-article-number)))
+ (when (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.
+ (gnus-alist-pull article gnus-newsgroup-bookmarks)
+ ;; Set the new bookmark, which is on the form
+ ;; (article-number . line-number-in-body).
+ (push
+ (cons article
+ (with-current-buffer gnus-article-buffer
+ (count-lines
+ (min (point)
+ (save-excursion
+ (article-goto-body)
+ (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.
+ (if (not (assq article gnus-newsgroup-bookmarks))
+ (gnus-message 6 "No bookmark in current article.")
+ (gnus-alist-pull article gnus-newsgroup-bookmarks)
+ (gnus-message 6 "Removed bookmark.")))
+
+;; 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)))
+ (when (gnus-summary-goto-subject article)
+ (gnus-summary-show-thread)
+ (gnus-summary-goto-subject article)
+ (gnus-summary-update-secondary-mark article)))
+
+(defun gnus-summary-remove-process-mark (&rest articles)
+ "Remove the process mark from ARTICLES and update the summary line."
+ (dolist (article articles)
+ (setq gnus-newsgroup-processable (delq article gnus-newsgroup-processable))
+ (when (gnus-summary-goto-subject article)
+ (gnus-summary-show-thread)
+ (gnus-summary-goto-subject article)
+ (gnus-summary-update-secondary-mark article)))
+ t)
+
+(defun gnus-summary-set-saved-mark (article)
+ "Set the process mark on ARTICLE and update the summary line."
+ (push article gnus-newsgroup-saved)
+ (when (gnus-summary-goto-subject article)
+ (gnus-summary-update-secondary-mark article)))
+
+(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, ?r by default.
+The difference between N and the actual number of articles marked is
+returned.
+If NO-EXPIRE, auto-expiry will be inhibited."
+ (interactive "p")
+ (gnus-summary-show-thread)
+ (let ((backward (< n 0))
+ (gnus-summary-goto-unread
+ (and gnus-summary-goto-unread
+ (not (eq gnus-summary-goto-unread 'never))
+ (not (memq mark (list gnus-unread-mark gnus-spam-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)
+ (and gnus-summary-goto-unread
+ (not (eq gnus-summary-goto-unread 'never)))
+ t)))
+ (setq n (1- n)))
+ (when (/= 0 n)
+ (gnus-message 7 "No more %sarticles" (if mark "" "unread ")))
+ (gnus-summary-recenter)
+ (gnus-summary-position-point)
+ (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-spam-marked (delq article gnus-newsgroup-spam-marked))
+ (setq gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant))
+ (push (cons article mark) gnus-newsgroup-reads)
+ ;; Possibly remove from cache, if that is used.
+ (when gnus-use-cache
+ (gnus-cache-enter-remove-article article))
+ ;; Allow the backend to change the mark.
+ (setq mark (gnus-request-update-mark gnus-newsgroup-name article mark))
+ ;; Check for auto-expiry.
+ (when (and gnus-newsgroup-auto-expire
+ (memq mark gnus-auto-expirable-marks))
+ (setq mark gnus-expirable-mark)
+ ;; Let the backend know about the mark change.
+ (setq mark (gnus-request-update-mark gnus-newsgroup-name article mark))
+ (push article gnus-newsgroup-expirable))
+ ;; Set the mark in the buffer.
+ (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))
+ (old-mark (gnus-summary-article-mark article)))
+ ;; Allow the backend to change the mark.
+ (setq mark (gnus-request-update-mark gnus-newsgroup-name article mark))
+ (if (eq mark old-mark)
+ t
+ (if (<= article 0)
+ (progn
+ (gnus-error 1 "Can't mark negative article numbers")
+ nil)
+ (setq gnus-newsgroup-marked (delq article gnus-newsgroup-marked))
+ (setq gnus-newsgroup-spam-marked
+ (delq article gnus-newsgroup-spam-marked))
+ (setq gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant))
+ (setq gnus-newsgroup-expirable (delq article gnus-newsgroup-expirable))
+ (setq gnus-newsgroup-reads (delq article gnus-newsgroup-reads))
+ (setq gnus-newsgroup-unreads (delq article gnus-newsgroup-unreads))
+ (cond ((= mark gnus-ticked-mark)
+ (setq gnus-newsgroup-marked
+ (gnus-add-to-sorted-list gnus-newsgroup-marked
+ article)))
+ ((= mark gnus-spam-mark)
+ (setq gnus-newsgroup-spam-marked
+ (gnus-add-to-sorted-list gnus-newsgroup-spam-marked
+ article)))
+ ((= mark gnus-dormant-mark)
+ (setq gnus-newsgroup-dormant
+ (gnus-add-to-sorted-list gnus-newsgroup-dormant
+ article)))
+ (t
+ (setq gnus-newsgroup-unreads
+ (gnus-add-to-sorted-list gnus-newsgroup-unreads
+ article))))
+ (gnus-alist-pull article gnus-newsgroup-reads)
+
+ ;; See whether the article is to be put in the cache.
+ (and gnus-use-cache
+ (vectorp (gnus-summary-article-header article))
+ (save-excursion
+ (gnus-cache-possibly-enter-article
+ gnus-newsgroup-name article
+ (= mark gnus-ticked-mark)
+ (= mark gnus-dormant-mark) (= mark gnus-unread-mark))))
+
+ ;; 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 `?r' is used.
+If ARTICLE is nil, then the article on the current line will be
+marked.
+If NO-EXPIRE, auto-expiry will be inhibited."
+ ;; The mark might be a string.
+ (when (stringp mark)
+ (setq mark (aref mark 0)))
+ ;; If no mark is given, then we check auto-expiring.
+ (when (null mark)
+ (setq mark gnus-del-mark))
+ (when (and (not no-expire)
+ gnus-newsgroup-auto-expire
+ (memq mark gnus-auto-expirable-marks))
+ (setq mark gnus-expirable-mark))
+ (let ((article (or article (gnus-summary-article-number)))
+ (old-mark (gnus-summary-article-mark article)))
+ ;; Allow the backend to change the mark.
+ (setq mark (gnus-request-update-mark gnus-newsgroup-name article mark))
+ (if (eq mark old-mark)
+ t
+ (unless article
+ (error "No article on current line"))
+ (if (not (if (or (= mark gnus-unread-mark)
+ (= mark gnus-ticked-mark)
+ (= mark gnus-spam-mark)
+ (= mark gnus-dormant-mark))
+ (gnus-mark-article-as-unread article mark)
+ (gnus-mark-article-as-read article mark)))
+ t
+ ;; See whether the article is to be put in the cache.
+ (and gnus-use-cache
+ (not (= mark gnus-canceled-mark))
+ (vectorp (gnus-summary-article-header article))
+ (save-excursion
+ (gnus-cache-possibly-enter-article
+ gnus-newsgroup-name article
+ (= mark gnus-ticked-mark)
+ (= mark gnus-dormant-mark) (= mark gnus-unread-mark))))
+
+ (when (gnus-summary-goto-subject article nil t)
+ (let ((inhibit-read-only t))
+ (gnus-summary-show-thread)
+ ;; Fix the mark.
+ (gnus-summary-update-mark mark 'unread)
+ t))))))
+
+(defun gnus-summary-update-secondary-mark (article)
+ "Update the secondary (read, process, cache) mark."
+ (gnus-summary-update-mark
+ (cond ((memq article gnus-newsgroup-processable)
+ gnus-process-mark)
+ ((memq article gnus-newsgroup-cached)
+ gnus-cached-mark)
+ ((memq article gnus-newsgroup-replied)
+ gnus-replied-mark)
+ ((memq article gnus-newsgroup-forwarded)
+ gnus-forwarded-mark)
+ ((memq article gnus-newsgroup-saved)
+ gnus-saved-mark)
+ ((memq article gnus-newsgroup-unseen)
+ gnus-unseen-mark)
+ (t gnus-no-mark))
+ 'replied)
+ (when (gnus-visual-p 'summary-highlight 'highlight)
+ (gnus-summary-highlight-line)
+ (gnus-run-hooks 'gnus-summary-update-hook))
+ t)
+
+(defun gnus-summary-update-download-mark (article)
+ "Update the download mark."
+ (gnus-summary-update-mark
+ (cond ((memq article gnus-newsgroup-undownloaded)
+ gnus-undownloaded-mark)
+ (gnus-newsgroup-agentized
+ gnus-downloaded-mark)
+ (t
+ gnus-no-mark))
+ 'download)
+ (gnus-summary-update-line t)
+ t)
+
+(defun gnus-summary-update-mark (mark type)
+ (let ((forward (cdr (assq type gnus-summary-mark-positions)))
+ (inhibit-read-only t))
+ (re-search-backward "[\n\r]" (point-at-bol) 'move-to-limit)
+ (when forward
+ (when (looking-at "\r")
+ (incf forward))
+ (when (<= (+ forward (point)) (point-max))
+ ;; Go to the right position on the line.
+ (goto-char (+ forward (point)))
+ ;; Replace the old mark with the new mark.
+ (let ((to-insert
+ (mm-subst-char-in-string
+ (char-after) mark
+ (buffer-substring (point) (1+ (point))))))
+ (delete-region (point) (1+ (point)))
+ (insert to-insert))
+ ;; Optionally update the marks by some user rule.
+ (when (eq type 'unread)
+ (gnus-data-set-mark
+ (gnus-data-find (gnus-summary-article-number)) 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)))
+ (setq gnus-newsgroup-expirable
+ (if (= mark gnus-expirable-mark)
+ (gnus-add-to-sorted-list gnus-newsgroup-expirable article)
+ (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-spam-marked (delq article gnus-newsgroup-spam-marked))
+ (setq gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant))
+ (push (cons article mark) gnus-newsgroup-reads)
+ ;; Possibly remove from cache, if that is used.
+ (when gnus-use-cache
+ (gnus-cache-enter-remove-article article))
+ t))
+
+(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)))
+ (if (<= article 0)
+ (progn
+ (gnus-error 1 "Can't mark negative article numbers")
+ nil)
+ (setq gnus-newsgroup-marked (delq article gnus-newsgroup-marked)
+ gnus-newsgroup-spam-marked (delq article gnus-newsgroup-spam-marked)
+ gnus-newsgroup-dormant (delq article gnus-newsgroup-dormant)
+ gnus-newsgroup-expirable (delq article gnus-newsgroup-expirable)
+ gnus-newsgroup-unreads (delq article gnus-newsgroup-unreads))
+
+ ;; Unsuppress duplicates?
+ (when gnus-suppress-duplicates
+ (gnus-dup-unsuppress-article article))
+
+ (cond ((= mark gnus-ticked-mark)
+ (setq gnus-newsgroup-marked
+ (gnus-add-to-sorted-list gnus-newsgroup-marked article)))
+ ((= mark gnus-spam-mark)
+ (setq gnus-newsgroup-spam-marked
+ (gnus-add-to-sorted-list gnus-newsgroup-spam-marked
+ article)))
+ ((= mark gnus-dormant-mark)
+ (setq gnus-newsgroup-dormant
+ (gnus-add-to-sorted-list gnus-newsgroup-dormant article)))
+ (t
+ (setq gnus-newsgroup-unreads
+ (gnus-add-to-sorted-list gnus-newsgroup-unreads article))))
+ (gnus-alist-pull article gnus-newsgroup-reads)
+ t)))
+
+(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))
+
+(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))
+
+(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."
+ (interactive)
+ (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 gnus-inhibit-user-auto-expire))
+
+(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 gnus-inhibit-user-auto-expire))
+
+(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-mark-article-hook'."
+ (when (memq gnus-current-article gnus-newsgroup-unreads)
+ (gnus-summary-mark-article gnus-current-article gnus-read-mark)))
+
+(defun gnus-summary-mark-read-and-unread-as-read (&optional new-mark)
+ "Intended to be used by `gnus-mark-article-hook'."
+ (let ((mark (gnus-summary-article-mark)))
+ (when (or (gnus-unread-mark-p mark)
+ (gnus-read-mark-p mark))
+ (gnus-summary-mark-article gnus-current-article
+ (or new-mark gnus-read-mark)))))
+
+(defun gnus-summary-mark-current-read-and-unread-as-read (&optional new-mark)
+ "Intended to be used by `gnus-mark-article-hook'."
+ (let ((mark (gnus-summary-article-mark)))
+ (when (or (gnus-unread-mark-p mark)
+ (gnus-read-mark-p mark))
+ (gnus-summary-mark-article (gnus-summary-article-number)
+ (or new-mark gnus-read-mark)))))
+
+(defun gnus-summary-mark-unread-as-ticked ()
+ "Intended to be used by `gnus-mark-article-hook'."
+ (when (memq gnus-current-article gnus-newsgroup-unreads)
+ (gnus-summary-mark-article gnus-current-article gnus-ticked-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
+ (let (article)
+ (goto-char point)
+ (beginning-of-line)
+ (while (and
+ (< (point) mark)
+ (progn
+ (when (or all
+ (memq (setq article (gnus-summary-article-number))
+ gnus-newsgroup-unreads))
+ (gnus-summary-mark-article article gnus-del-mark))
+ t)
+ (gnus-summary-find-next))))))
+
+(defun gnus-summary-mark-below (score mark)
+ "Mark articles with score less than SCORE with MARK."
+ (interactive "P\ncMark: ")
+ (setq score (if score
+ (prefix-numeric-value score)
+ (or gnus-summary-default-score 0)))
+ (with-current-buffer gnus-summary-buffer
+ (goto-char (point-min))
+ (while
+ (progn
+ (and (< (gnus-summary-article-score) score)
+ (gnus-summary-mark-article nil mark))
+ (gnus-summary-find-next)))))
+
+(defun gnus-summary-kill-below (&optional score)
+ "Mark articles with score below SCORE as read."
+ (interactive "P")
+ (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-summary-mark-above score gnus-unread-mark))
+
+(defun gnus-summary-tick-above (&optional score)
+ "Tick all articles with score above SCORE."
+ (interactive "P")
+ (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: ")
+ (setq score (if score
+ (prefix-numeric-value score)
+ (or gnus-summary-default-score 0)))
+ (with-current-buffer gnus-summary-buffer
+ (goto-char (point-min))
+ (while (and (progn
+ (when (> (gnus-summary-article-score) score)
+ (gnus-summary-mark-article nil mark))
+ t)
+ (gnus-summary-find-next)))))
+
+;; Suggested by Daniel Quinlan <quinlan@best.com>.
+(defalias 'gnus-summary-show-all-expunged 'gnus-summary-limit-include-expunged)
+(defun gnus-summary-limit-include-expunged (&optional no-error)
+ "Display all the hidden articles that were expunged for low scores."
+ (interactive)
+ (let ((inhibit-read-only t))
+ (let ((scored gnus-newsgroup-scored)
+ headers h)
+ (while scored
+ (unless (gnus-summary-article-header (caar scored))
+ (and (setq h (gnus-number-to-header (caar scored)))
+ (< (cdar scored) gnus-summary-expunge-below)
+ (push h headers)))
+ (setq scored (cdr scored)))
+ (if (not headers)
+ (when (not no-error)
+ (error "No expunged articles hidden"))
+ (goto-char (point-min))
+ (push gnus-newsgroup-limit gnus-newsgroup-limits)
+ (setq gnus-newsgroup-limit (copy-sequence gnus-newsgroup-limit))
+ (dolist (x headers)
+ (push (mail-header-number x) gnus-newsgroup-limit))
+ (gnus-summary-prepare-unthreaded (nreverse headers))
+ (goto-char (point-min))
+ (gnus-summary-position-point)
+ t))))
+
+(defun gnus-summary-catchup (&optional all quietly to-here not-mark reverse)
+ "Mark all unread articles in this newsgroup as read.
+If prefix argument ALL is non-nil, ticked and dormant articles will
+also be 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 (after, if REVERSE is set) this point will be marked
+as read.
+
+Note that this function will only catch up the unread article
+in the current summary buffer limitation.
+
+The number of articles marked as read is returned."
+ (interactive "P")
+ (prog1
+ (save-excursion
+ (when (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)
+ (not gnus-suppress-duplicates)
+ (or (not gnus-use-cache)
+ (eq gnus-use-cache 'passive)))
+ (progn
+ (when all
+ (setq gnus-newsgroup-marked nil
+ gnus-newsgroup-spam-marked nil
+ gnus-newsgroup-dormant nil))
+ (setq gnus-newsgroup-unreads
+ (gnus-sorted-nunion
+ (gnus-sorted-intersection gnus-newsgroup-unreads
+ gnus-newsgroup-downloadable)
+ (gnus-sorted-difference gnus-newsgroup-unfetched
+ gnus-newsgroup-cached))))
+ ;; 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 (and to-here reverse)
+ (progn
+ (goto-char to-here)
+ (gnus-summary-mark-current-read-and-unread-as-read
+ gnus-catchup-mark)
+ (while (gnus-summary-find-next (not all))
+ (gnus-summary-mark-article-as-read gnus-catchup-mark)))
+ (when (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-find-next (not all))))))
+ (gnus-set-mode-line 'summary))
+ t))
+ (gnus-summary-position-point)))
+
+(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")
+ (save-excursion
+ (gnus-save-hidden-threads
+ (let ((beg (point)))
+ ;; We check that there are unread articles.
+ (when (or all (gnus-summary-find-prev))
+ (gnus-summary-catchup all t beg)))))
+ (gnus-summary-position-point))
+
+(defun gnus-summary-catchup-from-here (&optional all)
+ "Mark all unticked articles after (and including) the current one as read.
+If ALL is non-nil, also mark ticked and dormant articles as read."
+ (interactive "P")
+ (save-excursion
+ (gnus-save-hidden-threads
+ (let ((beg (point)))
+ ;; We check that there are unread articles.
+ (when (or all (gnus-summary-find-next))
+ (gnus-summary-catchup all t beg nil t)))))
+ (gnus-summary-position-point))
+
+(defun gnus-summary-catchup-all (&optional quietly)
+ "Mark all articles in this newsgroup as read.
+This command is dangerous. Normally, you want \\[gnus-summary-catchup]
+instead, which marks only unread articles as read."
+ (interactive "P")
+ (gnus-summary-catchup t quietly))
+
+(defun gnus-summary-catchup-and-exit (&optional all quietly)
+ "Mark all unread articles in this group as read, then exit.
+If prefix argument ALL is non-nil, all articles are marked as read.
+If QUIETLY is non-nil, no questions will be asked."
+ (interactive "P")
+ (when (gnus-summary-catchup all quietly nil 'fast)
+ ;; Select next newsgroup or exit.
+ (if (and (not (gnus-group-quit-config gnus-newsgroup-name))
+ (eq gnus-auto-select-next 'quietly))
+ (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.
+This command is dangerous. Normally, you want \\[gnus-summary-catchup-and-exit]
+instead, which marks only unread articles as read."
+ (interactive "P")
+ (gnus-summary-catchup-and-exit t quietly))
+
+(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")
+ (save-excursion
+ (gnus-summary-catchup all))
+ (gnus-summary-next-group))
+
+(defun gnus-summary-catchup-and-goto-prev-group (&optional all)
+ "Mark all articles in this group as read and select the previous group.
+If given a prefix, mark all articles, unread as well as ticked, as
+read."
+ (interactive "P")
+ (save-excursion
+ (gnus-summary-catchup all))
+ (gnus-summary-next-group nil nil t))
+
+;;;
+;;; with article
+;;;
+
+(defmacro gnus-with-article (article &rest forms)
+ "Select ARTICLE and perform FORMS in the original article buffer.
+Then replace the article with the result."
+ `(progn
+ ;; We don't want the article to be marked as read.
+ (let (gnus-mark-article-hook)
+ (gnus-summary-select-article t t nil ,article))
+ (set-buffer gnus-original-article-buffer)
+ ,@forms
+ (if (not (gnus-check-backend-function
+ 'request-replace-article (car gnus-article-current)))
+ (gnus-message 5 "Read-only group; not replacing")
+ (unless (gnus-request-replace-article
+ ,article (car gnus-article-current)
+ (current-buffer) t)
+ (error "Couldn't replace article")))
+ ;; The cache and backlog have to be flushed somewhat.
+ (when gnus-keep-backlog
+ (gnus-backlog-remove-article
+ (car gnus-article-current) (cdr gnus-article-current)))
+ (when gnus-use-cache
+ (gnus-cache-update-article
+ (car gnus-article-current) (cdr gnus-article-current)))))
+
+(put 'gnus-with-article 'lisp-indent-function 1)
+(put 'gnus-with-article 'edebug-form-spec '(form body))
+
+;; Thread-based commands.
+
+(defun gnus-summary-articles-in-thread (&optional article)
+ "Return a list of all articles in the current thread.
+If ARTICLE is non-nil, return all articles in the thread that starts
+with that article."
+ (let* ((article (or article (gnus-summary-article-number)))
+ (data (gnus-data-find-list article))
+ (top-level (gnus-data-level (car data)))
+ (top-subject
+ (cond ((null gnus-thread-operation-ignore-subject)
+ (gnus-simplify-subject-re
+ (mail-header-subject (gnus-data-header (car data)))))
+ ((eq gnus-thread-operation-ignore-subject 'fuzzy)
+ (gnus-simplify-subject-fuzzy
+ (mail-header-subject (gnus-data-header (car data)))))
+ (t nil)))
+ (end-point (save-excursion
+ (goto-char (gnus-data-pos (car data)))
+ (if (gnus-summary-go-to-next-thread)
+ (point) (point-max))))
+ articles)
+ (while (and data
+ (< (gnus-data-pos (car data)) end-point))
+ (when (or (not top-subject)
+ (string= top-subject
+ (if (eq gnus-thread-operation-ignore-subject 'fuzzy)
+ (gnus-simplify-subject-fuzzy
+ (mail-header-subject
+ (gnus-data-header (car data))))
+ (gnus-simplify-subject-re
+ (mail-header-subject
+ (gnus-data-header (car data)))))))
+ (push (gnus-data-number (car data)) articles))
+ (unless (and (setq data (cdr data))
+ (> (gnus-data-level (car data)) top-level))
+ (setq data nil)))
+ ;; Return the list of articles.
+ (nreverse articles)))
+
+(defun gnus-summary-rethread-current ()
+ "Rethread the thread the current article is part of."
+ (interactive)
+ (let* ((gnus-show-threads t)
+ (article (gnus-summary-article-number))
+ (id (mail-header-id (gnus-summary-article-header)))
+ (gnus-newsgroup-threads (list (gnus-id-to-thread (gnus-root-id id)))))
+ (unless id
+ (error "No article on the current line"))
+ (gnus-rebuild-thread id)
+ (gnus-summary-goto-subject article)))
+
+(defun gnus-summary-reparent-thread ()
+ "Make the current article child of the marked (or previous) article.
+
+Note that the re-threading will only work if `gnus-thread-ignore-subject'
+is non-nil or the Subject: of both articles are the same."
+ (interactive)
+ (unless (not (gnus-group-read-only-p))
+ (error "The current newsgroup does not support article editing"))
+ (unless (<= (length gnus-newsgroup-processable) 1)
+ (error "No more than one article may be marked"))
+ (let ((child (gnus-summary-article-number))
+ ;; First grab the marked article, otherwise one line up.
+ (parent (if (not (null gnus-newsgroup-processable))
+ (car gnus-newsgroup-processable)
+ (save-excursion
+ (if (eq (forward-line -1) 0)
+ (gnus-summary-article-number)
+ (error "Beginning of summary buffer"))))))
+ (gnus-summary-reparent-children parent (list child))))
+
+(defun gnus-summary-reparent-children (parent children)
+ "Make PARENT the parent of CHILDREN.
+When called interactively, PARENT is the current article and CHILDREN
+are the process-marked articles."
+ (interactive
+ (list (gnus-summary-article-number)
+ (gnus-summary-work-articles nil)))
+ (dolist (child children)
+ (save-window-excursion
+ (let ((gnus-article-buffer " *reparent*"))
+ (unless (not (eq parent child))
+ (error "An article may not be self-referential"))
+ (let ((message-id (mail-header-id
+ (gnus-summary-article-header parent))))
+ (unless (and message-id (not (equal message-id "")))
+ (error "No message-id in desired parent"))
+ (gnus-with-article child
+ (save-restriction
+ (goto-char (point-min))
+ (message-narrow-to-head)
+ (if (re-search-forward "^References: " nil t)
+ (progn
+ (re-search-forward "^[^ \t]" nil t)
+ (forward-line -1)
+ (end-of-line)
+ (insert " " message-id))
+ (insert "References: " message-id "\n"))))
+ (set-buffer gnus-summary-buffer)
+ (gnus-summary-unmark-all-processable)
+ (gnus-summary-update-article child)
+ (when (gnus-summary-goto-subject (cdr gnus-article-current) nil t)
+ (gnus-summary-update-secondary-mark (cdr gnus-article-current)))
+ (gnus-summary-rethread-current)
+ (gnus-message 3 "Article %d is now the child of article %d"
+ child parent))))))
+
+(defun gnus-summary-toggle-threads (&optional arg)
+ "Toggle showing conversation threads.
+If ARG is positive number, turn showing conversation threads on."
+ (interactive "P")
+ (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-message 6 "Threading is now %s" (if gnus-show-threads "on" "off"))
+ (gnus-summary-position-point)))
+
+(defun gnus-summary-show-all-threads ()
+ "Show all threads."
+ (interactive)
+ (remove-overlays (point-min) (point-max) 'invisible 'gnus-sum)
+ (gnus-summary-position-point))
+
+(defsubst gnus-summary--inv (p)
+ (and (eq (get-char-property p 'invisible) 'gnus-sum) p))
+
+(defun gnus-summary-show-thread ()
+ "Show thread subtrees.
+Returns nil if no thread was there to be shown."
+ (interactive)
+ (let* ((orig (point))
+ (end (point-at-eol))
+ (end (or (gnus-summary--inv end) (gnus-summary--inv (1- end))))
+ ;; Leave point at bol
+ (beg (progn (beginning-of-line) (if (bobp) (point) (1- (point)))))
+ (eoi (when end
+ (if (fboundp 'next-single-char-property-change)
+ ;; Note: XEmacs version of n-s-c-p-c may return nil
+ (or (next-single-char-property-change end 'invisible)
+ (point-max))
+ (while (progn
+ (end-of-line 2)
+ (and (not (eobp))
+ (eq (get-char-property (point) 'invisible)
+ 'gnus-sum))))
+ (point)))))
+ (when eoi
+ (remove-overlays beg eoi 'invisible 'gnus-sum)
+ (goto-char orig)
+ (gnus-summary-position-point)
+ eoi)))
+
+(defun gnus-summary-maybe-hide-threads ()
+ "If requested, hide the threads that should be hidden."
+ (when (and gnus-show-threads
+ gnus-thread-hide-subtree)
+ (gnus-summary-hide-all-threads
+ (if (or (consp gnus-thread-hide-subtree)
+ (functionp gnus-thread-hide-subtree))
+ (gnus-make-predicate gnus-thread-hide-subtree)
+ nil))))
+
+;;; Hiding predicates.
+
+(defun gnus-article-unread-p (header)
+ (memq (mail-header-number header) gnus-newsgroup-unreads))
+
+(defun gnus-article-unseen-p (header)
+ (memq (mail-header-number header) gnus-newsgroup-unseen))
+
+(defun gnus-map-articles (predicate articles)
+ "Map PREDICATE over ARTICLES and return non-nil if any predicate is non-nil."
+ (apply 'gnus-or (mapcar predicate
+ (mapcar (lambda (number)
+ (gnus-summary-article-header number))
+ articles))))
+
+(defun gnus-summary-hide-all-threads (&optional predicate)
+ "Hide all thread subtrees.
+If PREDICATE is supplied, threads that satisfy this predicate
+will not be hidden."
+ (interactive)
+ (save-excursion
+ (goto-char (point-min))
+ (let ((end nil)
+ (count 0))
+ (while (not end)
+ (incf count)
+ (when (zerop (mod count 1000))
+ (message "Hiding all threads... %d" count))
+ (when (or (not predicate)
+ (gnus-map-articles
+ predicate (gnus-summary-article-children)))
+ (gnus-summary-hide-thread))
+ (setq end (not (zerop (gnus-summary-next-thread 1 t)))))))
+ (gnus-summary-position-point))
+
+(defun gnus-summary-hide-thread ()
+ "Hide thread subtrees.
+If PREDICATE is supplied, threads that satisfy this predicate
+will not be hidden.
+Returns nil if no threads were there to be hidden."
+ (interactive)
+ (beginning-of-line)
+ (let ((start (point))
+ (starteol (line-end-position))
+ (article (gnus-summary-article-number)))
+ ;; Go forward until either the buffer ends or the subthread ends.
+ (when (and (not (eobp))
+ (or (zerop (gnus-summary-next-thread 1 t))
+ (goto-char (point-max))))
+ (if (and (> (point) start)
+ ;; FIXME: this should actually search for a non-invisible \n.
+ (search-backward "\n" start t))
+ (progn
+ (when (> (point) starteol)
+ (remove-overlays starteol (point) 'invisible 'gnus-sum)
+ (let ((ol (make-overlay starteol (point) nil t nil)))
+ (overlay-put ol 'invisible 'gnus-sum)
+ (overlay-put ol 'evaporate t)))
+ (gnus-summary-goto-subject article)
+ (when (> start (point))
+ (message "Hiding the thread moved us backwards, aborting!")
+ (goto-char (point-max))))
+ (goto-char start)
+ nil))))
+
+(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))
+ (way (if previous -1 1))
+ (beg (point)))
+ (forward-line way)
+ (while (and (not (eobp))
+ (< level (gnus-summary-thread-level)))
+ (forward-line way))
+ (if (eobp)
+ (progn
+ (goto-char beg)
+ nil)
+ (setq beg (point))
+ (prog1
+ (gnus-summary-article-number)
+ (goto-char beg)))))
+
+(defun gnus-summary-next-thread (n &optional silent)
+ "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.
+
+If SILENT, don't output messages."
+ (interactive "p")
+ (let ((backward (< n 0))
+ (n (abs n)))
+ (while (and (> n 0)
+ (gnus-summary-go-to-next-thread backward))
+ (decf n))
+ (unless silent
+ (gnus-summary-position-point))
+ (when (and (not silent) (/= 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-summary-next-thread (- n)))
+
+(defun gnus-summary-go-down-thread ()
+ "Go down one level in the current thread."
+ (let ((children (gnus-summary-article-children)))
+ (when children
+ (gnus-summary-goto-subject (car children)))))
+
+(defun gnus-summary-go-up-thread ()
+ "Go up one level in the current thread."
+ (let ((parent (gnus-summary-article-parent)))
+ (when parent
+ (gnus-summary-goto-subject parent))))
+
+(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")
+ (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-point)
+ (when (/= 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 down instead.
+Returns the difference between N and how many steps down that were
+taken."
+ (interactive "p")
+ (gnus-summary-down-thread (- n)))
+
+(defun gnus-summary-top-thread ()
+ "Go to the top of the thread."
+ (interactive)
+ (while (gnus-summary-go-up-thread))
+ (gnus-summary-article-number))
+
+(defun gnus-summary-expire-thread ()
+ "Mark articles under current thread as expired."
+ (interactive)
+ (gnus-summary-kill-thread 0))
+
+(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 zero, mark thread as expired.
+If the prefix argument is negative, tick articles instead."
+ (interactive "P")
+ (when unmark
+ (setq unmark (prefix-numeric-value unmark)))
+ (let ((articles (gnus-summary-articles-in-thread))
+ (hide (or (null unmark) (= unmark 0))))
+ (save-excursion
+ ;; Expand the thread.
+ (gnus-summary-show-thread)
+ ;; Mark all the articles.
+ (while articles
+ (gnus-summary-goto-subject (car articles))
+ (cond ((null unmark)
+ (gnus-summary-mark-article-as-read gnus-killed-mark))
+ ((> unmark 0)
+ (gnus-summary-mark-article-as-unread gnus-unread-mark))
+ ((= unmark 0)
+ (gnus-summary-mark-article nil gnus-expirable-mark))
+ (t
+ (gnus-summary-mark-article-as-unread gnus-ticked-mark)))
+ (setq articles (cdr articles))))
+ ;; Hide killed subtrees when hide is true.
+ (and hide
+ gnus-thread-hide-killed
+ (gnus-summary-hide-thread))
+ ;; If hide is t, go to next unread subject.
+ (when hide
+ ;; 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 the summary buffer by article number.
+Argument REVERSE means reverse order."
+ (interactive "P")
+ (gnus-summary-sort 'number reverse))
+
+(defun gnus-summary-sort-by-most-recent-number (&optional reverse)
+ "Sort the summary buffer by most recent article number.
+Argument REVERSE means reverse order."
+ (interactive "P")
+ (gnus-summary-sort 'most-recent-number reverse))
+
+(defun gnus-summary-sort-by-random (&optional reverse)
+ "Randomize the order in the summary buffer.
+Argument REVERSE means to randomize in reverse order."
+ (interactive "P")
+ (gnus-summary-sort 'random reverse))
+
+(defun gnus-summary-sort-by-author (&optional reverse)
+ "Sort the 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-sort 'author reverse))
+
+(defun gnus-summary-sort-by-recipient (&optional reverse)
+ "Sort the summary buffer by recipient name alphabetically.
+If `case-fold-search' is non-nil, case of letters is ignored.
+Argument REVERSE means reverse order."
+ (interactive "P")
+ (gnus-summary-sort 'recipient reverse))
+
+(defun gnus-summary-sort-by-subject (&optional reverse)
+ "Sort the 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-sort 'subject reverse))
+
+(defun gnus-summary-sort-by-date (&optional reverse)
+ "Sort the summary buffer by date.
+Argument REVERSE means reverse order."
+ (interactive "P")
+ (gnus-summary-sort 'date reverse))
+
+(defun gnus-summary-sort-by-most-recent-date (&optional reverse)
+ "Sort the summary buffer by most recent date.
+Argument REVERSE means reverse order."
+ (interactive "P")
+ (gnus-summary-sort 'most-recent-date reverse))
+
+(defun gnus-summary-sort-by-score (&optional reverse)
+ "Sort the summary buffer by score.
+Argument REVERSE means reverse order."
+ (interactive "P")
+ (gnus-summary-sort 'score reverse))
+
+(defun gnus-summary-sort-by-lines (&optional reverse)
+ "Sort the summary buffer by the number of lines.
+Argument REVERSE means reverse order."
+ (interactive "P")
+ (gnus-summary-sort 'lines reverse))
+
+(defun gnus-summary-sort-by-chars (&optional reverse)
+ "Sort the summary buffer by article length.
+Argument REVERSE means reverse order."
+ (interactive "P")
+ (gnus-summary-sort 'chars reverse))
+
+(defun gnus-summary-sort-by-original (&optional reverse)
+ "Sort the summary buffer using the default sorting method.
+Argument REVERSE means reverse order."
+ (interactive "P")
+ (let* ((inhibit-read-only t)
+ (gnus-summary-prepare-hook nil))
+ ;; We do the sorting by regenerating the threads.
+ (gnus-summary-prepare)
+ ;; Hide subthreads if needed.
+ (gnus-summary-maybe-hide-threads)))
+
+(defun gnus-summary-sort (predicate reverse)
+ "Sort summary buffer by PREDICATE. REVERSE means reverse order."
+ (let* ((thread (intern (format "gnus-thread-sort-by-%s" predicate)))
+ (article (intern (format "gnus-article-sort-by-%s" predicate)))
+ (gnus-thread-sort-functions
+ (if (not reverse)
+ thread
+ `(lambda (t1 t2)
+ (,thread t2 t1))))
+ (gnus-sort-gathered-threads-function
+ gnus-thread-sort-functions)
+ (gnus-article-sort-functions
+ (if (not reverse)
+ article
+ `(lambda (t1 t2)
+ (,article t2 t1))))
+ (inhibit-read-only t)
+ (gnus-summary-prepare-hook nil))
+ ;; We do the sorting by regenerating the threads.
+ (gnus-summary-prepare)
+ ;; Hide subthreads if needed.
+ (gnus-summary-maybe-hide-threads)))
+
+;; Summary saving commands.
+
+(defun gnus-summary-save-article (&optional n not-saved)
+ "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.
+
+If the optional second argument NOT-SAVED is non-nil, articles saved
+will not be marked as saved."
+ (interactive "P")
+ (require 'gnus-art)
+ (let* ((articles (gnus-summary-work-articles n))
+ (save-buffer (save-excursion
+ (nnheader-set-temp-buffer " *Gnus Save*")))
+ (num (length articles))
+ ;; Whether to save decoded articles or raw articles.
+ (decode (when gnus-article-save-coding-system
+ (get gnus-default-article-saver :decode)))
+ ;; When saving many articles in a single file, use the other
+ ;; function to save articles other than the first one.
+ (saver2 (get gnus-default-article-saver :function))
+ (gnus-prompt-before-saving (if saver2
+ t
+ gnus-prompt-before-saving))
+ (gnus-default-article-saver gnus-default-article-saver)
+ header file)
+ (dolist (article articles)
+ (setq header (gnus-summary-article-header article))
+ (if (not (vectorp header))
+ ;; This is a pseudo-article.
+ (if (assq 'name header)
+ (gnus-copy-file (cdr (assq 'name header)))
+ (gnus-message 1 "Article %d is unsavable" article))
+ ;; This is a real article.
+ (save-window-excursion
+ (gnus-summary-select-article decode decode nil article)
+ (gnus-summary-goto-subject article))
+ (with-current-buffer save-buffer
+ (erase-buffer)
+ (insert-buffer-substring (if decode
+ gnus-article-buffer
+ gnus-original-article-buffer)))
+ (setq file (gnus-article-save save-buffer file num))
+ (gnus-summary-remove-process-mark article)
+ (unless not-saved
+ (gnus-summary-set-saved-mark article)))
+ (when saver2
+ (setq gnus-default-article-saver saver2
+ saver2 nil)))
+ (gnus-kill-buffer save-buffer)
+ (gnus-summary-position-point)
+ (gnus-set-mode-line 'summary)
+ n))
+
+(declare-function gnus-summary-save-in-pipe "gnus-art" (&optional command raw))
+
+(defun gnus-summary-pipe-output (&optional n sym)
+ "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.
+The default command to which articles are piped is specified by the
+variable `gnus-summary-pipe-output-default-command'; if it is nil, you
+will be prompted for the command.
+
+The properties `:decode' and `:headers' that are put to the function
+symbol `gnus-summary-save-in-pipe' control whether this function
+decodes articles and what headers to keep (see the doc string for the
+`gnus-default-article-saver' variable). If SYM (the symbolic prefix)
+is neither omitted nor the symbol `r', force including all headers
+regardless of the `:headers' property. If it is the symbol `r',
+articles that are not decoded and include all headers will be piped
+no matter what the properties `:decode' and `:headers' are."
+ (interactive (gnus-interactive "P\ny"))
+ (require 'gnus-art)
+ (let* ((articles (gnus-summary-work-articles n))
+ (result-buffer "*Shell Command Output*")
+ (all-headers (not (memq sym '(nil r))))
+ (gnus-save-all-headers (or all-headers gnus-save-all-headers))
+ (raw (eq sym 'r))
+ (headers (get 'gnus-summary-save-in-pipe :headers))
+ command result)
+ (unless (numberp (car articles))
+ (error "No article to pipe"))
+ (setq command (gnus-read-shell-command
+ (concat "Shell command on "
+ (if (cdr articles)
+ (format "these %d articles" (length articles))
+ "this article")
+ ": ")
+ gnus-summary-pipe-output-default-command))
+ (when (string-equal command "")
+ (error "A command is required"))
+ (when all-headers
+ (put 'gnus-summary-save-in-pipe :headers nil))
+ (unwind-protect
+ (while articles
+ (gnus-summary-goto-subject (pop articles))
+ (save-window-excursion (gnus-summary-save-in-pipe command raw))
+ (when (and (get-buffer result-buffer)
+ (not (zerop (buffer-size (get-buffer result-buffer)))))
+ (setq result (concat result (with-current-buffer result-buffer
+ (buffer-string))))))
+ (put 'gnus-summary-save-in-pipe :headers headers))
+ (unless (zerop (length result))
+ (if (with-current-buffer (get-buffer-create result-buffer)
+ (erase-buffer)
+ (insert result)
+ (prog1
+ (and (= (count-lines (point-min) (point)) 1)
+ (progn
+ (end-of-line 0)
+ (<= (current-column)
+ (window-width (minibuffer-window)))))
+ (goto-char (point-min))))
+ (message "%s" (substring result 0 -1))
+ (message nil)
+ (gnus-configure-windows 'pipe)))))
+
+(defun gnus-summary-save-article-mail (&optional arg)
+ "Append the current article to a Unix mail box 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")
+ (require 'gnus-art)
+ (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")
+ (require 'gnus-art)
+ (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")
+ (require 'gnus-art)
+ (let ((gnus-default-article-saver 'gnus-summary-save-in-file))
+ (gnus-summary-save-article arg)))
+
+(defun gnus-summary-write-article-file (&optional arg)
+ "Write the current article to a file, deleting the previous 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")
+ (require 'gnus-art)
+ (let ((gnus-default-article-saver 'gnus-summary-write-to-file))
+ (gnus-summary-save-article arg)))
+
+(defun gnus-summary-save-article-body-file (&optional arg)
+ "Append the current article body 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")
+ (require 'gnus-art)
+ (let ((gnus-default-article-saver 'gnus-summary-save-body-in-file))
+ (gnus-summary-save-article arg)))
+
+(defun gnus-summary-write-article-body-file (&optional arg)
+ "Write the current article body to a file, deleting the previous 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")
+ (require 'gnus-art)
+ (let ((gnus-default-article-saver 'gnus-summary-write-body-to-file))
+ (gnus-summary-save-article arg)))
+
+(defun gnus-summary-muttprint (&optional arg)
+ "Print the current article using Muttprint.
+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")
+ (require 'gnus-art)
+ (let ((gnus-default-article-saver 'gnus-summary-pipe-to-muttprint))
+ (gnus-summary-save-article arg t)))
+
+(defun gnus-summary-pipe-message (program)
+ "Pipe the current article through PROGRAM."
+ (interactive "sProgram: ")
+ (gnus-summary-select-article)
+ (let ((mail-header-separator ""))
+ (gnus-eval-in-buffer-window gnus-article-buffer
+ (save-restriction
+ (widen)
+ (let ((start (window-start))
+ (inhibit-read-only t))
+ (message-pipe-buffer-body program)
+ (set-window-start (get-buffer-window (current-buffer)) start))))))
+
+(defun gnus-get-split-value (methods)
+ "Return a value based on the split METHODS."
+ (let (split-name method result match)
+ (when methods
+ (with-current-buffer gnus-original-article-buffer
+ (save-restriction
+ (nnheader-narrow-to-headers)
+ (while (and methods (not split-name))
+ (goto-char (point-min))
+ (setq method (pop methods))
+ (setq match (car method))
+ (when (cond
+ ((stringp match)
+ ;; Regular expression.
+ (ignore-errors
+ (re-search-forward match nil t)))
+ ((functionp match)
+ ;; Function.
+ (save-restriction
+ (widen)
+ (setq result (funcall match gnus-newsgroup-name))))
+ ((consp match)
+ ;; Form.
+ (save-restriction
+ (widen)
+ (setq result (eval match)))))
+ (setq split-name (cdr method))
+ (cond ((stringp result)
+ (push (expand-file-name
+ result gnus-article-save-directory)
+ split-name))
+ ((consp result)
+ (setq split-name (append result split-name)))))))))
+ (nreverse split-name)))
+
+(defun gnus-valid-move-group-p (group)
+ (and (symbolp group)
+ (boundp group)
+ (symbol-name group)
+ (symbol-value group)
+ (gnus-get-function (gnus-find-method-for-group
+ (symbol-name group)) 'request-accept-article t)))
+
+(defun gnus-read-move-group-name (prompt default articles prefix)
+ "Read a group name."
+ (let* ((split-name (gnus-get-split-value gnus-move-split-methods))
+ (minibuffer-confirm-incomplete nil) ; XEmacs
+ (prom
+ (format "%s %s to"
+ prompt
+ (if (> (length articles) 1)
+ (format "these %d articles" (length articles))
+ "this article")))
+ (to-newsgroup
+ (cond
+ ((null split-name)
+ (gnus-group-completing-read
+ prom
+ (gnus-remove-if-not 'gnus-valid-move-group-p gnus-active-hashtb t)
+ nil prefix nil default))
+ ((= 1 (length split-name))
+ (gnus-group-completing-read
+ prom
+ (gnus-remove-if-not 'gnus-valid-move-group-p gnus-active-hashtb t)
+ nil prefix 'gnus-group-history (car split-name)))
+ (t
+ (gnus-completing-read
+ prom (nreverse split-name) nil nil 'gnus-group-history))))
+ (to-method (gnus-server-to-method (gnus-group-method to-newsgroup)))
+ encoded)
+ (when to-newsgroup
+ (if (or (string= to-newsgroup "")
+ (string= to-newsgroup prefix))
+ (setq to-newsgroup default))
+ (unless to-newsgroup
+ (error "No group name entered"))
+ (setq encoded (mm-encode-coding-string
+ to-newsgroup
+ (gnus-group-name-charset to-method to-newsgroup)))
+ (or (gnus-active encoded)
+ (gnus-activate-group encoded nil nil to-method)
+ (if (gnus-y-or-n-p (format "No such group: %s. Create it? "
+ to-newsgroup))
+ (or (and (gnus-request-create-group encoded to-method)
+ (gnus-activate-group encoded nil nil to-method)
+ (gnus-subscribe-group encoded))
+ (error "Couldn't create group %s" to-newsgroup)))
+ (error "No such group: %s" to-newsgroup))
+ encoded)))
+
+(defvar gnus-summary-save-parts-counter)
+(declare-function mm-uu-dissect "mm-uu" (&optional noheader mime-type))
+
+(defun gnus-summary-save-parts (type dir n &optional reverse)
+ "Save parts matching TYPE to DIR.
+If REVERSE, save parts that do not match TYPE."
+ (interactive
+ (list (read-string "Save parts of type: "
+ (or (car gnus-summary-save-parts-type-history)
+ gnus-summary-save-parts-default-mime)
+ 'gnus-summary-save-parts-type-history)
+ (setq gnus-summary-save-parts-last-directory
+ (read-directory-name "Save to directory: "
+ gnus-summary-save-parts-last-directory
+ nil t))
+ current-prefix-arg))
+ (gnus-summary-iterate n
+ (let ((gnus-display-mime-function nil)
+ gnus-article-prepare-hook
+ gnus-article-decode-hook
+ gnus-display-mime-function
+ gnus-break-pages
+ (gnus-inhibit-treatment t))
+ (gnus-summary-select-article))
+ (with-current-buffer gnus-article-buffer
+ (let ((handles (or gnus-article-mime-handles
+ (mm-dissect-buffer nil gnus-article-loose-mime)
+ (and gnus-article-emulate-mime
+ (mm-uu-dissect))))
+ (gnus-summary-save-parts-counter 1))
+ (when handles
+ (gnus-summary-save-parts-1 type dir handles reverse)
+ (unless gnus-article-mime-handles ;; Don't destroy this case.
+ (mm-destroy-parts handles)))))))
+
+(defun gnus-summary-save-parts-1 (type dir handle reverse)
+ (if (stringp (car handle))
+ (mapcar (lambda (h) (gnus-summary-save-parts-1 type dir h reverse))
+ (cdr handle))
+ (when (if reverse
+ (not (string-match type (mm-handle-media-type handle)))
+ (string-match type (mm-handle-media-type handle)))
+ (let ((file (expand-file-name
+ (gnus-map-function
+ mm-file-name-rewrite-functions
+ (file-name-nondirectory
+ (or
+ (mm-handle-filename handle)
+ (format "%s.%d.%d" gnus-newsgroup-name
+ (cdr gnus-article-current)
+ gnus-summary-save-parts-counter))))
+ dir)))
+ (incf gnus-summary-save-parts-counter)
+ (unless (file-exists-p file)
+ (mm-save-part-to-file handle file))))))
+
+;; Summary extract commands
+
+(defun gnus-summary-insert-pseudos (pslist &optional not-view)
+ (let ((inhibit-read-only t)
+ (article (gnus-summary-article-number))
+ after-article b e)
+ (unless (gnus-summary-goto-subject article)
+ (error "No such article: %d" article))
+ (gnus-summary-position-point)
+ ;; If all commands are to be bunched up on one line, we collect
+ ;; them here.
+ (unless 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 (cadr ps))) "2")))
+ (push (cdr (assq 'name (cadr ps))) files)
+ (setcdr ps (cddr ps)))
+ (when files
+ (when (not (string-match "%s" action))
+ (push " " files))
+ (push " " files)
+ (when (assq 'execute (car ps))
+ (setcdr (assq 'execute (car ps))
+ (funcall (if (string-match "%s" action)
+ 'format 'concat)
+ action
+ (mapconcat
+ (lambda (f)
+ (if (equal f " ")
+ f
+ (shell-quote-argument f)))
+ files " ")))))
+ (setq ps (cdr ps)))))
+ (if (and gnus-view-pseudos (not not-view))
+ (while pslist
+ (when (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
+ (setq after-article (or (cdr (assq 'article (car pslist)))
+ (gnus-summary-article-number)))
+ (gnus-summary-goto-subject after-article)
+ (forward-line 1)
+ (setq b (point))
+ (insert " " (file-name-nondirectory
+ (cdr (assq 'name (car pslist))))
+ ": " (or (cdr (assq 'execute (car pslist))) "") "\n")
+ (setq e (point))
+ (forward-line -1) ; back to `b'
+ (gnus-add-text-properties
+ b (1- e) (list 'gnus-number gnus-reffed-article-number
+ gnus-mouse-face-prop gnus-mouse-face))
+ (gnus-data-enter
+ after-article gnus-reffed-article-number
+ gnus-unread-mark b (car pslist) 0 (- e b))
+ (setq gnus-newsgroup-unreads
+ (gnus-add-to-sorted-list gnus-newsgroup-unreads
+ gnus-reffed-article-number))
+ (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)))
+ (gnus-run-hooks 'gnus-mark-article-hook)))
+
+(defun gnus-execute-command (command &optional automatic)
+ (save-excursion
+ (gnus-article-setup-buffer)
+ (set-buffer gnus-article-buffer)
+ (setq buffer-read-only nil)
+ (let ((command (if automatic command
+ (read-string "Command: " (cons command 0)))))
+ (erase-buffer)
+ (insert "$ " command "\n\n")
+ (if gnus-view-pseudo-asynchronously
+ (start-process "gnus-execute" (current-buffer) shell-file-name
+ shell-command-switch command)
+ (call-process shell-file-name nil t nil
+ shell-command-switch command)))))
+
+;; Summary kill commands.
+
+(defun gnus-summary-edit-global-kill (article)
+ "Edit the \"global\" kill file."
+ (interactive (list (gnus-summary-article-number)))
+ (gnus-group-edit-global-kill article))
+
+(defun gnus-summary-edit-local-kill ()
+ "Edit a local kill file applied to the current newsgroup."
+ (interactive)
+ (setq gnus-current-headers (gnus-summary-article-header))
+ (gnus-group-edit-local-kill
+ (gnus-summary-article-number) gnus-newsgroup-name))
+
+;;; Header reading.
+
+(defun gnus-read-header (id &optional header)
+ "Read the headers of article ID and enter them into the Gnus system."
+ (let ((group gnus-newsgroup-name)
+ (gnus-override-method
+ (or
+ gnus-override-method
+ (and (gnus-news-group-p gnus-newsgroup-name)
+ (car (gnus-refer-article-methods)))))
+ where)
+ ;; First we check to see whether the header in question is already
+ ;; fetched.
+ (if (stringp id)
+ ;; This is a Message-ID.
+ (setq header (or header (gnus-id-to-header id)))
+ ;; This is an article number.
+ (setq header (or header (gnus-summary-article-header id))))
+ (if (and header
+ (not (gnus-summary-article-sparse-p (mail-header-number header))))
+ ;; We have found the header.
+ header
+ ;; We have to really fetch the header to this article.
+ (with-current-buffer nntp-server-buffer
+ (when (setq where (gnus-request-head id group))
+ (nnheader-fold-continuation-lines)
+ (goto-char (point-max))
+ (insert ".\n")
+ (goto-char (point-min))
+ (insert "211 ")
+ (princ (cond
+ ((numberp id) id)
+ ((cdr where) (cdr where))
+ (header (mail-header-number header))
+ (t gnus-reffed-article-number))
+ (current-buffer))
+ (insert " Article retrieved.\n"))
+ (if (or (not where)
+ (not (setq header (car (gnus-get-newsgroup-headers nil t)))))
+ () ; Malformed head.
+ (unless (gnus-summary-article-sparse-p (mail-header-number header))
+ (when (and (bound-and-true-p gnus-registry-enabled)
+ (not (gnus-ephemeral-group-p (car where))))
+ (gnus-registry-handle-action
+ (mail-header-id header) nil
+ (gnus-group-prefixed-name
+ (car where)
+ (or gnus-override-method (gnus-find-method-for-group group)))
+ (mail-header-subject header)
+ (mail-header-from header)))
+ (when (and (stringp id)
+ (or
+ (not (string= (gnus-group-real-name group)
+ (car where)))
+ (not (gnus-server-equal gnus-override-method
+ (gnus-group-method group)))))
+ ;; If we fetched by Message-ID and the article came from
+ ;; a different group (or server), we fudge some bogus
+ ;; article numbers for this article.
+ (mail-header-set-number header gnus-reffed-article-number))
+ (with-current-buffer gnus-summary-buffer
+ (decf gnus-reffed-article-number)
+ (gnus-remove-header (mail-header-number header))
+ (push header gnus-newsgroup-headers)
+ (setq gnus-current-headers header)
+ (push (mail-header-number header) gnus-newsgroup-limit)))
+ header)))))
+
+(defun gnus-remove-header (number)
+ "Remove header NUMBER from `gnus-newsgroup-headers'."
+ (if (and gnus-newsgroup-headers
+ (= number (mail-header-number (car gnus-newsgroup-headers))))
+ (pop gnus-newsgroup-headers)
+ (let ((headers gnus-newsgroup-headers))
+ (while (and (cdr headers)
+ (not (= number (mail-header-number (cadr headers)))))
+ (pop headers))
+ (when (cdr headers)
+ (setcdr headers (cddr headers))))))
+
+;;;
+;;; summary highlights
+;;;
+
+(defun gnus-highlight-selected-summary ()
+ "Highlight selected article in summary buffer."
+ ;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
+ (when gnus-summary-selected-face
+ (save-excursion
+ (let* ((beg (point-at-bol))
+ (end (point-at-eol))
+ ;; Fix by Mike Dugan <dugan@bucrf16.bu.edu>.
+ (from (if (get-text-property beg gnus-mouse-face-prop)
+ beg
+ (or (next-single-property-change
+ beg gnus-mouse-face-prop nil end)
+ beg)))
+ (to
+ (if (= from end)
+ (- from 2)
+ (or (next-single-property-change
+ from gnus-mouse-face-prop nil end)
+ end))))
+ ;; If no mouse-face prop on line we will have to = from = end,
+ ;; so we highlight the entire line instead.
+ (when (= (+ to 2) from)
+ (setq from beg)
+ (setq to end))
+ (if gnus-newsgroup-selected-overlay
+ ;; Move old overlay.
+ (move-overlay
+ gnus-newsgroup-selected-overlay from to (current-buffer))
+ ;; Create new overlay.
+ (overlay-put
+ (setq gnus-newsgroup-selected-overlay (make-overlay from to))
+ 'face gnus-summary-selected-face))))))
+
+(defvar gnus-summary-highlight-line-cached nil)
+(defvar gnus-summary-highlight-line-trigger nil)
+
+(defun gnus-summary-highlight-line-0 ()
+ (if (and (eq gnus-summary-highlight-line-trigger
+ gnus-summary-highlight)
+ gnus-summary-highlight-line-cached)
+ gnus-summary-highlight-line-cached
+ (setq gnus-summary-highlight-line-trigger gnus-summary-highlight
+ gnus-summary-highlight-line-cached
+ (let* ((cond (list 'cond))
+ (c cond)
+ (list gnus-summary-highlight))
+ (while list
+ (setcdr c (cons (list (caar list) (list 'quote (cdar list)))
+ nil))
+ (setq c (cdr c)
+ list (cdr list)))
+ (gnus-byte-compile (list 'lambda nil cond))))))
+
+(defun gnus-summary-highlight-line ()
+ "Highlight current line according to `gnus-summary-highlight'."
+ (let* ((beg (point-at-bol))
+ (article (or (gnus-summary-article-number) gnus-current-article))
+ (score (or (cdr (assq article
+ gnus-newsgroup-scored))
+ gnus-summary-default-score 0))
+ (mark (or (gnus-summary-article-mark) gnus-unread-mark))
+ (inhibit-read-only t)
+ (default gnus-summary-default-score)
+ (default-high gnus-summary-default-high-score)
+ (default-low gnus-summary-default-low-score)
+ (uncached (and gnus-summary-use-undownloaded-faces
+ (memq article gnus-newsgroup-undownloaded)
+ (not (memq article gnus-newsgroup-cached)))))
+ (let ((face (funcall (gnus-summary-highlight-line-0))))
+ (unless (eq face (gnus-get-text-property-excluding-characters-with-faces beg 'face))
+ (gnus-put-text-property-excluding-characters-with-faces
+ beg (point-at-eol) 'face
+ (setq face (if (boundp face) (symbol-value face) face)))
+ (when gnus-summary-highlight-line-function
+ (funcall gnus-summary-highlight-line-function article face))))))
+
+(defun gnus-update-read-articles (group unread &optional compute)
+ "Update the list of read articles in GROUP.
+UNREAD is a sorted list."
+ (let ((active (or gnus-newsgroup-active (gnus-active group)))
+ (info (gnus-get-info group))
+ (prev 1)
+ 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)))
+ ;; Compute the ranges of read articles by looking at the list of
+ ;; unread articles.
+ (while unread
+ (when (/= (car unread) prev)
+ (push (if (= prev (1- (car unread))) prev
+ (cons prev (1- (car unread))))
+ read))
+ (setq prev (1+ (car unread)))
+ (setq unread (cdr unread)))
+ (when (<= prev (cdr active))
+ (push (cons prev (cdr active)) read))
+ (setq read (if (> (length read) 1) (nreverse read) read))
+ (if compute
+ read
+ (save-excursion
+ (let (setmarkundo)
+ ;; Propagate the read marks to the backend.
+ (when (and (gnus-method-option-p
+ (gnus-find-method-for-group group)
+ 'server-marks)
+ (gnus-check-backend-function 'request-set-mark group))
+ (let ((del (gnus-remove-from-range (gnus-info-read info) read))
+ (add (gnus-remove-from-range read (gnus-info-read info))))
+ (when (or add del)
+ (unless (gnus-check-group group)
+ (error "Can't open server for %s" group))
+ (gnus-request-set-mark
+ group (delq nil (list (if add (list add 'add '(read)))
+ (if del (list del 'del '(read))))))
+ (setq setmarkundo
+ `(gnus-request-set-mark
+ ,group
+ ',(delq nil (list
+ (if del (list del 'add '(read)))
+ (if add (list add 'del '(read))))))))))
+ (set-buffer gnus-group-buffer)
+ (gnus-undo-register
+ `(progn
+ (gnus-info-set-marks ',info ',(gnus-info-marks info) t)
+ (gnus-info-set-read ',info ',(gnus-info-read info))
+ (gnus-get-unread-articles-in-group ',info
+ (gnus-active ,group))
+ (gnus-group-update-group ,group t)
+ ,setmarkundo))))
+ ;; Enter this list into the group info.
+ (gnus-info-set-read info read)
+ ;; Set the number of unread articles in gnus-newsrc-hashtb.
+ (gnus-get-unread-articles-in-group info (gnus-active group))
+ t))))
+
+(defun gnus-offer-save-summaries ()
+ "Offer to save all active summary buffers."
+ (let (buffers)
+ ;; Go through all buffers and find all summaries.
+ (dolist (buffer (buffer-list))
+ (when (and (setq buffer (buffer-name buffer))
+ (string-match "Summary" buffer)
+ (with-current-buffer buffer
+ ;; We check that this is, indeed, a summary buffer.
+ (and (derived-mode-p 'gnus-summary-mode)
+ ;; Also make sure this isn't bogus.
+ gnus-newsgroup-prepared
+ ;; Also make sure that this isn't a
+ ;; dead summary buffer.
+ (not gnus-dead-summary-mode))))
+ (push buffer buffers)))
+ ;; Go through all these summary buffers and offer to save them.
+ (when buffers
+ (save-excursion
+ (if (eq gnus-interactive-exit 'quiet)
+ (dolist (buffer buffers)
+ (switch-to-buffer buffer)
+ (gnus-summary-exit))
+ (map-y-or-n-p
+ "Update summary buffer %s? "
+ (lambda (buf)
+ (switch-to-buffer buf)
+ (gnus-summary-exit))
+ buffers))))))
+
+(defun gnus-summary-setup-default-charset ()
+ "Setup newsgroup default charset."
+ (if (member gnus-newsgroup-name '("nndraft:delayed" "nndraft:drafts"))
+ (setq gnus-newsgroup-charset nil)
+ (let* ((ignored-charsets
+ (or gnus-newsgroup-ephemeral-ignored-charsets
+ (append
+ (and gnus-newsgroup-name
+ (gnus-parameter-ignored-charsets gnus-newsgroup-name))
+ gnus-newsgroup-ignored-charsets))))
+ (setq gnus-newsgroup-charset
+ (or gnus-newsgroup-ephemeral-charset
+ (and gnus-newsgroup-name
+ (gnus-parameter-charset gnus-newsgroup-name))
+ gnus-default-charset))
+ (set (make-local-variable 'gnus-newsgroup-ignored-charsets)
+ ignored-charsets))))
+
+;;;
+;;; Mime Commands
+;;;
+
+(defun gnus-summary-display-buttonized (&optional show-all-parts)
+ "Display the current article buffer fully MIME-buttonized.
+If SHOW-ALL-PARTS (the prefix) is non-nil, all multipart/* parts are
+treated as multipart/mixed."
+ (interactive "P")
+ (require 'gnus-art)
+ (let ((gnus-unbuttonized-mime-types nil)
+ (gnus-mime-display-multipart-as-mixed show-all-parts))
+ (gnus-summary-show-article)))
+
+(defun gnus-summary-repair-multipart (article)
+ "Add a Content-Type header to a multipart article without one."
+ (interactive (list (gnus-summary-article-number)))
+ (gnus-with-article article
+ (message-narrow-to-head)
+ (message-remove-header "Mime-Version")
+ (goto-char (point-max))
+ (insert "Mime-Version: 1.0\n")
+ (widen)
+ (when (search-forward "\n--" nil t)
+ (let ((separator (buffer-substring (point) (point-at-eol))))
+ (message-narrow-to-head)
+ (message-remove-header "Content-Type")
+ (goto-char (point-max))
+ (insert (format "Content-Type: multipart/mixed; boundary=\"%s\"\n"
+ separator))
+ (widen))))
+ (let (gnus-mark-article-hook)
+ (gnus-summary-select-article t t nil article)))
+
+(defun gnus-summary-toggle-display-buttonized ()
+ "Toggle the buttonizing of the article buffer."
+ (interactive)
+ (require 'gnus-art)
+ (if (setq gnus-inhibit-mime-unbuttonizing
+ (not gnus-inhibit-mime-unbuttonizing))
+ (let ((gnus-unbuttonized-mime-types nil))
+ (gnus-summary-show-article))
+ (gnus-summary-show-article)))
+
+;;;
+;;; Generic summary marking commands
+;;;
+
+(defvar gnus-summary-marking-alist
+ '((read gnus-del-mark "d")
+ (unread gnus-unread-mark "u")
+ (ticked gnus-ticked-mark "!")
+ (dormant gnus-dormant-mark "?")
+ (expirable gnus-expirable-mark "e"))
+ "An alist of names/marks/keystrokes.")
+
+(defvar gnus-summary-generic-mark-map (make-sparse-keymap))
+(defvar gnus-summary-mark-map)
+
+(defun gnus-summary-make-all-marking-commands ()
+ (define-key gnus-summary-mark-map "M" gnus-summary-generic-mark-map)
+ (dolist (elem gnus-summary-marking-alist)
+ (apply 'gnus-summary-make-marking-command elem)))
+
+(defun gnus-summary-make-marking-command (name mark keystroke)
+ (let ((map (make-sparse-keymap)))
+ (define-key gnus-summary-generic-mark-map keystroke map)
+ (dolist (lway `((next "next" next nil "n")
+ (next-unread "next unread" next t "N")
+ (prev "previous" prev nil "p")
+ (prev-unread "previous unread" prev t "P")
+ (nomove "" nil nil ,keystroke)))
+ (let ((func (gnus-summary-make-marking-command-1
+ mark (car lway) lway name)))
+ (setq func (eval func))
+ (define-key map (nth 4 lway) func)))))
+
+(defun gnus-summary-make-marking-command-1 (mark way lway name)
+ `(defun ,(intern
+ (format "gnus-summary-put-mark-as-%s%s"
+ name (if (eq way 'nomove)
+ ""
+ (concat "-" (symbol-name way)))))
+ (n)
+ ,(format
+ "Mark the current article as %s%s.
+If N, the prefix, then repeat N times.
+If N is negative, move in reverse order.
+The difference between N and the actual number of articles marked is
+returned."
+ name (cadr lway))
+ (interactive "p")
+ (gnus-summary-generic-mark n ,mark ',(nth 2 lway) ,(nth 3 lway))))
+
+(defun gnus-summary-generic-mark (n mark move unread)
+ "Mark N articles with MARK."
+ (unless (derived-mode-p 'gnus-summary-mode)
+ (error "This command can only be used in the summary buffer"))
+ (gnus-summary-show-thread)
+ (let ((nummove
+ (cond
+ ((eq move 'next) 1)
+ ((eq move 'prev) -1)
+ (t 0))))
+ (if (zerop nummove)
+ (setq n 1)
+ (when (< n 0)
+ (setq n (abs n)
+ nummove (* -1 nummove))))
+ (while (and (> n 0)
+ (gnus-summary-mark-article nil mark)
+ (zerop (gnus-summary-next-subject nummove unread t)))
+ (setq n (1- n)))
+ (when (/= 0 n)
+ (gnus-message 7 "No more %sarticles" (if mark "" "unread ")))
+ (gnus-summary-recenter)
+ (gnus-summary-position-point)
+ (gnus-set-mode-line 'summary)
+ n))
+
+(defun gnus-summary-insert-articles (articles)
+ (when (setq articles
+ (gnus-sorted-difference articles
+ (mapcar (lambda (h)
+ (mail-header-number h))
+ gnus-newsgroup-headers)))
+ (setq gnus-newsgroup-headers
+ (gnus-merge 'list
+ gnus-newsgroup-headers
+ (gnus-fetch-headers articles nil t)
+ 'gnus-article-sort-by-number))
+ (setq gnus-newsgroup-articles
+ (gnus-sorted-nunion gnus-newsgroup-articles articles))
+ ;; Suppress duplicates?
+ (when gnus-suppress-duplicates
+ (gnus-dup-suppress-articles))
+
+ (if (and gnus-fetch-old-headers
+ (eq gnus-headers-retrieved-by 'nov))
+ ;; We might want to build some more threads first.
+ (if (eq gnus-fetch-old-headers 'invisible)
+ (gnus-build-all-threads)
+ (gnus-build-old-threads))
+ ;; Mark the inserted articles that are unread as unread.
+ (setq gnus-newsgroup-unreads
+ (gnus-sorted-nunion
+ gnus-newsgroup-unreads
+ (gnus-sorted-nintersection
+ (gnus-list-of-unread-articles gnus-newsgroup-name)
+ articles)))
+ ;; Mark the inserted articles as selected so that the information
+ ;; of the marks having been changed by a user may be updated when
+ ;; exiting this group. See `gnus-summary-update-info'.
+ (dolist (art articles)
+ (setq gnus-newsgroup-unselected (delq art gnus-newsgroup-unselected))))
+ ;; Let the Gnus agent mark articles as read.
+ (when gnus-agent
+ (gnus-agent-get-undownloaded-list))
+ ;; Remove list identifiers from subject
+ (gnus-summary-remove-list-identifiers)
+ ;; First and last article in this newsgroup.
+ (when gnus-newsgroup-headers
+ (setq gnus-newsgroup-begin
+ (mail-header-number (car gnus-newsgroup-headers))
+ gnus-newsgroup-end
+ (mail-header-number
+ (gnus-last-element gnus-newsgroup-headers))))
+ (when gnus-use-scoring
+ (gnus-possibly-score-headers))))
+
+(defun gnus-summary-insert-old-articles (&optional all)
+ "Insert all old articles in this group.
+If ALL is non-nil, already read articles become readable.
+If ALL is a number, fetch this number of articles."
+ (interactive "P")
+ (prog1
+ (let ((old (sort (mapcar 'car gnus-newsgroup-data) '<))
+ older len)
+ (setq older
+ ;; Some nntp servers lie about their active range. When
+ ;; this happens, the active range can be in the millions.
+ ;; Use a compressed range to avoid creating a huge list.
+ (gnus-range-difference
+ (gnus-range-difference (list gnus-newsgroup-active) old)
+ gnus-newsgroup-unexist))
+ (setq len (gnus-range-length older))
+ (cond
+ ((null older) nil)
+ ((numberp all)
+ (if (< all len)
+ (let ((older-range (nreverse older)))
+ (setq older nil)
+
+ (while (> all 0)
+ (let* ((r (pop older-range))
+ (min (if (numberp r) r (car r)))
+ (max (if (numberp r) r (cdr r))))
+ (while (and (<= min max)
+ (> all 0))
+ (push max older)
+ (setq all (1- all)
+ max (1- max))))))
+ (setq older (gnus-uncompress-range older))))
+ (all
+ (setq older (gnus-uncompress-range older)))
+ (t
+ (when (and (numberp gnus-large-newsgroup)
+ (> len gnus-large-newsgroup))
+ (let* ((cursor-in-echo-area nil)
+ (initial (gnus-parameter-large-newsgroup-initial
+ gnus-newsgroup-name))
+ (input
+ (read-string
+ (format
+ "How many articles from %s (%s %d): "
+ (gnus-group-decoded-name gnus-newsgroup-name)
+ (if initial "max" "default")
+ len)
+ nil nil
+ (and initial
+ (number-to-string initial)))))
+ (unless (string-match "^[ \t]*$" input)
+ (setq all (string-to-number input))
+ (if (< all len)
+ (let ((older-range (nreverse older)))
+ (setq older nil)
+
+ (while (> all 0)
+ (let* ((r (pop older-range))
+ (min (if (numberp r) r (car r)))
+ (max (if (numberp r) r (cdr r))))
+ (while (and (<= min max)
+ (> all 0))
+ (push max older)
+ (setq all (1- all)
+ max (1- max))))))))))
+ (setq older (gnus-uncompress-range older))))
+ (if (not older)
+ (message "No old news.")
+ (gnus-summary-insert-articles older)
+ (gnus-summary-limit (gnus-sorted-nunion old older))))
+ (gnus-summary-position-point)))
+
+(defun gnus-summary-insert-new-articles ()
+ "Insert all new articles in this group."
+ (interactive)
+ (let ((old (sort (mapcar 'car gnus-newsgroup-data) '<))
+ (old-high gnus-newsgroup-highest)
+ (nnmail-fetched-sources (list t))
+ (new-active (gnus-activate-group gnus-newsgroup-name 'scan))
+ i new)
+ (unless new-active
+ (error "Couldn't fetch new data"))
+ (setq gnus-newsgroup-active (gnus-copy-sequence new-active))
+ (setq i (cdr gnus-newsgroup-active)
+ gnus-newsgroup-highest i)
+ (while (> i old-high)
+ (push i new)
+ (decf i))
+ (if (not new)
+ (message "No gnus is bad news")
+ (gnus-summary-insert-articles new)
+ (setq gnus-newsgroup-unreads
+ (gnus-sorted-nunion gnus-newsgroup-unreads new))
+ (gnus-summary-limit (gnus-sorted-nunion old new))))
+ (gnus-summary-position-point))
+
+;;; Bookmark support for Gnus.
+(declare-function gnus-article-show-summary "gnus-art" ())
+(declare-function bookmark-make-record-default
+ "bookmark" (&optional no-file no-context posn))
+(declare-function bookmark-prop-get "bookmark" (bookmark prop))
+(declare-function bookmark-default-handler "bookmark" (bmk))
+(declare-function bookmark-get-bookmark-record "bookmark" (bmk))
+(defvar bookmark-yank-point)
+(defvar bookmark-current-buffer)
+
+(defun gnus-summary-bookmark-make-record ()
+ "Make a bookmark entry for a Gnus summary buffer."
+ (let (pos buf)
+ (unless (and (derived-mode-p 'gnus-summary-mode) gnus-article-current)
+ (save-restriction ; FIXME is it necessary to widen?
+ (widen) (setq pos (point))) ; Set position in gnus-article buffer.
+ (setq buf "art") ; We are recording bookmark from article buffer.
+ (setq bookmark-yank-point (point))
+ (setq bookmark-current-buffer (current-buffer))
+ (gnus-article-show-summary)) ; Go back in summary buffer.
+ ;; We are now recording bookmark from summary buffer.
+ (unless buf (setq buf "sum"))
+ (let* ((subject (elt (gnus-summary-article-header) 1))
+ (grp (car gnus-article-current))
+ (art (cdr gnus-article-current))
+ (head (gnus-summary-article-header art))
+ (id (mail-header-id head)))
+ `(,subject
+ ,@(condition-case nil
+ (bookmark-make-record-default 'no-file 'no-context pos)
+ (wrong-number-of-arguments
+ (bookmark-make-record-default 'point-only)))
+ (location . ,(format "Gnus-%s %s:%d:%s" buf grp art id))
+ (group . ,grp) (article . ,art)
+ (message-id . ,id) (handler . gnus-summary-bookmark-jump)))))
+
+;;;###autoload
+(defun gnus-summary-bookmark-jump (bookmark)
+ "Handler function for record returned by `gnus-summary-bookmark-make-record'.
+BOOKMARK is a bookmark name or a bookmark record."
+ (let ((group (bookmark-prop-get bookmark 'group))
+ (article (bookmark-prop-get bookmark 'article))
+ (id (bookmark-prop-get bookmark 'message-id))
+ (buf (car (split-string (bookmark-prop-get bookmark 'location)))))
+ (gnus-fetch-group group (list article))
+ (gnus-summary-insert-cached-articles)
+ (gnus-summary-goto-article id nil 'force)
+ ;; FIXME we have to wait article buffer is ready (only large buffer)
+ ;; Is there a better solution to know that?
+ ;; If we don't wait `bookmark-default-handler' will have no chance
+ ;; to set position. However there is no error, just wrong pos.
+ (sit-for 1)
+ (when (string= buf "Gnus-art")
+ (other-window 1))
+ (bookmark-default-handler
+ `(""
+ (buffer . ,(current-buffer))
+ . ,(bookmark-get-bookmark-record bookmark)))))
+
+(gnus-summary-make-all-marking-commands)
+
+(gnus-ems-redefine)
+
+(provide 'gnus-sum)
+
+(run-hooks 'gnus-sum-load-hook)
+
+;; Local Variables:
+;; coding: utf-8
+;; End:
+
+;;; gnus-sum.el ends here
projects / packages / blobdiff