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+;;; gnus-vis.el --- display-oriented parts of Gnus
+;; Copyright (C) 1995 Free Software Foundation, Inc.
+
+;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
+;; 	Per Abrahamsen <abraham@iesd.auc.dk>
+;; Keywords: news
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2, or (at your option)
+;; any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs; see the file COPYING.  If not, write to
+;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+;;; Commentary:
+
+;;; Code:
+
+(require 'gnus)
+(require 'gnus-ems)
+(require 'easymenu)
+(require 'custom)
+
+(defvar gnus-group-menu-hook nil
+  "*Hook run after the creation of the group mode menu.")
+
+(defvar gnus-summary-menu-hook nil
+  "*Hook run after the creation of the summary mode menu.")
+
+(defvar gnus-article-menu-hook nil
+  "*Hook run after the creation of the article mode menu.")
+
+(defvar gnus-server-menu-hook nil
+  "*Hook run after the creation of the server mode menu.")
+
+(defvar gnus-browse-menu-hook nil
+  "*Hook run after the creation of the browse mode menu.")
+  
+;;; Summary highlights.
+
+;(defvar gnus-summary-highlight-properties
+;  '((unread "ForestGreen" "green")
+;    (ticked "Firebrick" "pink")
+;    (read "black" "white")
+;    (low italic italic)
+;    (high bold bold)
+;    (canceled "yellow/black" "black/yellow")))
+
+;(defvar gnus-summary-highlight-translation
+;  '(((unread (= mark gnus-unread-mark))
+;     (ticked (or (= mark gnus-ticked-mark) (= mark gnus-dormant-mark)))
+;     (read (not (or (= mark gnus-unread-mark) (= mark gnus-dormant-mark)
+;		    (= mark gnus-ticked-mark) (= mark gnus-canceled-mark))))
+;     (canceled (= mark gnus-canceled-mark)))
+;    ((low (< score gnus-summary-default-score))
+;     (high (> score gnus-summary-default-score)))))
+
+;(defun gnus-visual-map-face-translation ()
+;  (let ((props gnus-summary-highlight-properties)
+;	(trans gnus-summary-highlight-translation)
+;	map)
+;    (while props)))
+      
+;see gnus-cus.el
+;(defvar gnus-summary-selected-face 'underline
+;  "*Face used for highlighting the current article in the summary buffer.")
+ 
+;see gnus-cus.el
+;(defvar gnus-summary-highlight
+;  (cond ((not (eq gnus-display-type 'color))
+;	 '(((> score default) . bold)
+;	   ((< score default) . italic)))
+;	((eq gnus-background-mode 'dark)
+;	 (list (cons '(= mark gnus-canceled-mark)
+;		     (custom-face-lookup "yellow" "black" nil nil nil nil))
+;	       (cons '(and (> score default) 
+;			   (or (= mark gnus-dormant-mark)
+;			       (= mark gnus-ticked-mark)))
+;		     (custom-face-lookup "pink" nil nil t nil nil))
+;	       (cons '(and (< score default) 
+;			   (or (= mark gnus-dormant-mark)
+;			       (= mark gnus-ticked-mark)))
+;		     (custom-face-lookup "pink" nil nil nil t nil))
+;	       (cons '(or (= mark gnus-dormant-mark)
+;			  (= mark gnus-ticked-mark))
+;		     (custom-face-lookup "pink" nil nil nil nil nil))
+
+;	       (cons '(and (> score default) (= mark gnus-ancient-mark))
+;		     (custom-face-lookup "SkyBlue" nil nil t nil nil))
+;	       (cons '(and (< score default) (= mark gnus-ancient-mark))
+;		     (custom-face-lookup "SkyBlue" nil nil nil t nil))
+;	       (cons '(= mark gnus-ancient-mark)
+;		     (custom-face-lookup "SkyBlue" nil nil nil nil nil))
+
+;	       (cons '(and (> score default) (= mark gnus-unread-mark))
+;		     (custom-face-lookup "white" nil nil t nil nil))
+;	       (cons '(and (< score default) (= mark gnus-unread-mark))
+;		     (custom-face-lookup "white" nil nil nil t nil))
+;	       (cons '(= mark gnus-unread-mark)
+;		     (custom-face-lookup "white" nil nil nil nil nil))
+
+;	       (cons '(> score default) 'bold)
+;	       (cons '(< score default) 'italic)))
+;	(t
+;	 (list (cons '(= mark gnus-canceled-mark)
+;		     (custom-face-lookup "yellow" "black" nil nil nil nil))
+;	       (cons '(and (> score default) 
+;			   (or (= mark gnus-dormant-mark)
+;			       (= mark gnus-ticked-mark)))
+;		     (custom-face-lookup "firebrick" nil nil t nil nil))
+;	       (cons '(and (< score default) 
+;			   (or (= mark gnus-dormant-mark)
+;			       (= mark gnus-ticked-mark)))
+;		     (custom-face-lookup "firebrick" nil nil nil t nil))
+;	       (cons '(or (= mark gnus-dormant-mark)
+;			  (= mark gnus-ticked-mark))
+;		     (custom-face-lookup "firebrick" nil nil nil nil nil))
+
+;	       (cons '(and (> score default) (= mark gnus-ancient-mark))
+;		     (custom-face-lookup "RoyalBlue" nil nil t nil nil))
+;	       (cons '(and (< score default) (= mark gnus-ancient-mark))
+;		     (custom-face-lookup "RoyalBlue" nil nil nil t nil))
+;	       (cons '(= mark gnus-ancient-mark)
+;		     (custom-face-lookup "RoyalBlue" nil nil nil nil nil))
+
+;	       (cons '(and (> score default) (/= mark gnus-unread-mark))
+;		     (custom-face-lookup "DarkGreen" nil nil t nil nil))
+;	       (cons '(and (< score default) (/= mark gnus-unread-mark))
+;		     (custom-face-lookup "DarkGreen" nil nil nil t nil))
+;	       (cons '(/= mark gnus-unread-mark)
+;		     (custom-face-lookup "DarkGreen" nil nil nil nil nil))
+
+;	       (cons '(> score default) 'bold)
+;	       (cons '(< score default) 'italic))))
+;  "*Alist of `(FORM . FACE)'.
+;Summary lines are highlighted with the FACE for the first FORM which
+;evaluate to a non-nil value.  
+
+;Point will be at the beginning of the line when FORM is evaluated.
+;The following can be used for convenience:
+
+;score:   (gnus-summary-article-score)
+;default: gnus-summary-default-score
+;below:   gnus-summary-mark-below
+;mark:    (gnus-summary-article-mark)
+
+;The latter can be used like this:
+;   ((= mark gnus-replied-mark) . underline)")
+
+;;; article highlights
+
+;see gnus-cus.el
+;(defvar gnus-header-face-alist 
+;  (cond ((not (eq gnus-display-type 'color))
+;	 '(("" bold italic)))
+;	((eq gnus-background-mode 'dark)
+;	 (list (list "From" nil 
+;		     (custom-face-lookup "SkyBlue" nil nil t t nil))
+;	       (list "Subject" nil 
+;		     (custom-face-lookup "pink" nil nil t t nil))
+;	       (list "Newsgroups:.*," nil
+;		     (custom-face-lookup "yellow" nil nil t t nil))
+;	       (list "" 
+;		     (custom-face-lookup "cyan" nil nil t nil nil)
+;		     (custom-face-lookup "green" nil nil nil t nil))))
+;	(t
+;	 (list (list "From" nil 
+;		     (custom-face-lookup "RoyalBlue" nil nil t t nil))
+;	       (list "Subject" nil 
+;		     (custom-face-lookup "firebrick" nil nil t t nil))
+;	       (list "Newsgroups:.*," nil
+;		     (custom-face-lookup "red" nil nil t t nil))
+;	       (list ""
+;		     (custom-face-lookup "DarkGreen" nil nil t nil nil)
+;		     (custom-face-lookup "DarkGreen" nil nil nil t nil)))))
+;  "Alist of headers and faces used for highlighting them.
+;The entries in the list has the form `(REGEXP NAME CONTENT)', where
+;REGEXP is a regular expression matching the beginning of the header,
+;NAME is the face used for highlighting the header name and CONTENT is
+;the face used for highlighting the header content. 
+
+;The first non-nil NAME or CONTENT with a matching REGEXP in the list
+;will be used.")
+
+
+;see gnus-cus.el
+;(defvar gnus-make-foreground t
+;  "Non nil means foreground color to highlight citations.")
+
+;see gnus-cus.el
+;(defvar gnus-article-button-face 'bold
+;  "Face used for text buttons.")
+
+;see gnus-cus.el
+;(defvar gnus-article-mouse-face (if (boundp 'gnus-mouse-face)
+;				    gnus-mouse-face
+;				  'highlight)
+;  "Face used when the mouse is over the button.")
+
+;see gnus-cus.el
+;(defvar gnus-signature-face 'italic
+;  "Face used for signature.")
+
+(defvar gnus-button-alist 
+  '(("in\\( +article\\)? +\\(<\\([^\n @<>]+@[^\n @<>]+\\)>\\)" 2 
+     (assq (count-lines (point-min) (match-end 0)) 
+	   gnus-cite-attribution-alist)
+     gnus-button-message-id 3)
+    ;; This is how URLs _should_ be embedded in text...
+    ("<URL:\\([^\n\r>]*\\)>" 0 t gnus-button-url 1)
+    ;; Next regexp stolen from highlight-headers.el.
+    ;; Modified by Vladimir Alexiev.
+    ("\\b\\(s?https?\\|ftp\\|file\\|gopher\\|news\\|telnet\\|wais\\|mailto\\):\\(//[-a-zA-Z0-9_.]+:[0-9]*\\)?[-a-zA-Z0-9_=?#$@~`%&*+|\\/.,]*[-a-zA-Z0-9_=#$@~`%&*+|\\/]" 0 t gnus-button-url 0))
+  "Alist of regexps matching buttons in an article.
+
+Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
+REGEXP: is the string matching text around the button,
+BUTTON: is the number of the regexp grouping actually matching the button,
+FORM: is a lisp expression which must eval to true for the button to
+be added, 
+CALLBACK: is the function to call when the user push this button, and each
+PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
+
+CALLBACK can also be a variable, in that case the value of that
+variable it the real callback function.")
+
+;see gnus-cus.el
+;(eval-when-compile
+;  (defvar browse-url-browser-function))
+
+;see gnus-cus.el
+;(defvar gnus-button-url
+;  (cond ((boundp 'browse-url-browser-function) browse-url-browser-function)
+;	((fboundp 'w3-fetch) 'w3-fetch)
+;	((eq window-system 'x) 'gnus-netscape-open-url))
+;  "*Function to fetch URL.
+;The function will be called with one argument, the URL to fetch.
+;Useful values of this function are:
+
+;w3-fetch: 
+;   defined in the w3 emacs package by William M. Perry.
+;gnus-netscape-open-url:
+;   open url in existing netscape, start netscape if none found.
+;gnus-netscape-start-url:
+;   start new netscape with url.")
+
+
+
+(eval-and-compile
+  (autoload 'nnkiboze-generate-groups "nnkiboze")
+  (autoload 'gnus-cite-parse-maybe "gnus-cite" nil t))
+
+;;;
+;;; gnus-menu
+;;;
+
+(defun gnus-visual-turn-off-edit-menu (type)
+  (define-key (symbol-value (intern (format "gnus-%s-mode-map" type)))
+    [menu-bar edit] 'undefined))
+
+;; Newsgroup buffer
+
+(defun gnus-group-make-menu-bar ()
+  (gnus-visual-turn-off-edit-menu 'group)
+  (or 
+   (boundp 'gnus-group-reading-menu)
+   (progn
+     (easy-menu-define
+      gnus-group-reading-menu
+      gnus-group-mode-map
+      ""
+      '("Group"
+	["Read" gnus-group-read-group t]
+	["Select" gnus-group-select-group t]
+	["See old articles" gnus-group-select-group-all t]
+	["Catch up" gnus-group-catchup-current t]
+	["Catch up all articles" gnus-group-catchup-current-all t]
+	["Check for new articles" gnus-group-get-new-news-this-group t]
+	["Toggle subscription" gnus-group-unsubscribe-current-group t]
+	["Kill" gnus-group-kill-group t]
+	["Yank" gnus-group-yank-group t]
+	["Describe" gnus-group-describe-group t]
+	["Fetch FAQ" gnus-group-fetch-faq t]
+	["Edit kill file" gnus-group-edit-local-kill t]
+	["Expire articles" gnus-group-expire-articles t]
+	["Set group level" gnus-group-set-current-level t]
+	))
+  
+     (easy-menu-define
+      gnus-group-group-menu
+      gnus-group-mode-map
+      ""
+      '("Groups"
+	("Listing"
+	 ["List subscribed groups" gnus-group-list-groups t]
+	 ["List all groups" gnus-group-list-all-groups t]
+	 ["List groups matching..." gnus-group-list-matching t]
+	 ["List killed groups" gnus-group-list-killed t]
+	 ["List zombie groups" gnus-group-list-zombies t]
+	 ["Describe all groups" gnus-group-describe-all-groups t]
+	 ["Group apropos" gnus-group-apropos t]
+	 ["Group and description apropos" gnus-group-description-apropos t]
+	 ["List groups matching..." gnus-group-list-matching t])
+	("Mark"
+	 ["Mark group" gnus-group-mark-group t]
+	 ["Unmark group" gnus-group-unmark-group t]
+	 ["Mark region" gnus-group-mark-region t])
+	("Subscribe"
+	 ["Subscribe to random group" gnus-group-unsubscribe-group t]
+	 ["Kill all newsgroups in region" gnus-group-kill-region t]
+	 ["Kill all zombie groups" gnus-group-kill-all-zombies t])
+	("Foreign groups"
+	 ["Make a foreign group" gnus-group-make-group t]
+	 ["Add a directory group" gnus-group-make-directory-group t]
+	 ["Add the help group" gnus-group-make-help-group t]
+	 ["Add the archive group" gnus-group-make-archive-group t]
+	 ["Make a doc group" gnus-group-make-doc-group t]
+	 ["Make a kiboze group" gnus-group-make-kiboze-group t]
+	 ["Make a virtual group" gnus-group-make-empty-virtual t]
+	 ["Add a group to a virtual" gnus-group-add-to-virtual t])
+	("Editing groups"
+	 ["Parameters" gnus-group-edit-group-parameters t]
+	 ["Select method" gnus-group-edit-group-method t]
+	 ["Info" gnus-group-edit-group t])
+	["Read a directory as a group" gnus-group-enter-directory t]
+	["Jump to group" gnus-group-jump-to-group t]
+	["Best unread group" gnus-group-best-unread-group t]
+	))
+
+     (easy-menu-define
+      gnus-group-misc-menu
+      gnus-group-mode-map
+      ""
+      '("Misc"
+	["Send a bug report" gnus-bug t]
+	["Send a mail" gnus-group-mail t]
+	["Post an article" gnus-group-post-news t]
+	["Customize score file" gnus-score-customize 
+	 (not (string-match "XEmacs" emacs-version)) ]
+	["Check for new news" gnus-group-get-new-news t]     
+	["Delete bogus groups" gnus-group-check-bogus-groups t]
+	["Find new newsgroups" gnus-find-new-newsgroups t]
+	["Restart Gnus" gnus-group-restart t]
+	["Read init file" gnus-group-read-init-file t]
+	["Browse foreign server" gnus-group-browse-foreign-server t]
+	["Enter server buffer" gnus-group-enter-server-mode t]
+	["Expire expirable articles" gnus-group-expire-all-groups t]
+	["Generate any kiboze groups" nnkiboze-generate-groups t]
+	["Gnus version" gnus-version t]
+	["Save .newsrc files" gnus-group-save-newsrc t]
+	["Suspend Gnus" gnus-group-suspend t]
+	["Clear dribble buffer" gnus-group-clear-dribble t]
+	["Exit from Gnus" gnus-group-exit t]
+	["Exit without saving" gnus-group-quit t]
+	["Edit global kill file" gnus-group-edit-global-kill t]
+	["Sort group buffer" gnus-group-sort-groups t]
+	))
+     (run-hooks 'gnus-group-menu-hook)
+     )))
+
+;; Server mode
+(defun gnus-server-make-menu-bar ()
+  (gnus-visual-turn-off-edit-menu 'server)
+  (or
+   (boundp 'gnus-server-menu)
+   (progn
+     (easy-menu-define
+      gnus-server-menu
+      gnus-server-mode-map
+      ""
+      '("Server"
+	["Add" gnus-server-add-server t]
+	["Browse" gnus-server-read-server t]
+	["List" gnus-server-list-servers t]
+	["Kill" gnus-server-kill-server t]
+	["Yank" gnus-server-yank-server t]
+	["Copy" gnus-server-copy-server t]
+	["Edit" gnus-server-edit-server t]
+	["Exit" gnus-server-exit t]
+	))
+     (run-hooks 'gnus-server-menu-hook)
+     )))
+
+;; Browse mode
+(defun gnus-browse-make-menu-bar ()
+  (gnus-visual-turn-off-edit-menu 'browse)
+  (or
+   (boundp 'gnus-browse-menu)
+   (progn
+     (easy-menu-define
+      gnus-browse-menu
+      gnus-browse-mode-map
+      ""
+      '("Browse"
+	["Subscribe" gnus-browse-unsubscribe-current-group t]
+	["Read" gnus-group-read-group t]
+	["Exit" gnus-browse-exit t]
+	))
+      (run-hooks 'gnus-browse-menu-hook)
+      )))
+
+
+;; Summary buffer
+(defun gnus-summary-make-menu-bar ()
+  (gnus-visual-turn-off-edit-menu 'summary)
+
+  (or
+   (boundp 'gnus-summary-misc-menu)
+   (progn
+
+     (easy-menu-define
+      gnus-summary-misc-menu
+      gnus-summary-mode-map
+      ""
+      '("Misc"
+	("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 t]
+	  ["Catchup all" gnus-summary-catchup-all t]
+	  ["Catchup to here" gnus-summary-catchup-to-here t]
+	  ["Catchup region" gnus-summary-mark-region-as-read t])
+	 ("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])
+	 ("Display"
+	  ["Remove lines marked as read" gnus-summary-remove-lines-marked-as-read t]
+	  ["Remove lines marked with..." gnus-summary-remove-lines-marked-with t]
+	  ["Show dormant articles" gnus-summary-show-all-dormant t]
+	  ["Hide dormant articles" gnus-summary-hide-all-dormant t]
+	  ["Show expunged articles" gnus-summary-show-all-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]
+	  ["Mark series" gnus-uu-mark-series t]
+	  ["Mark region" gnus-uu-mark-region t]
+	  ["Mark by regexp" gnus-uu-mark-by-regexp t]
+	  ["Mark all" gnus-uu-mark-all t]
+	  ["Mark sparse" gnus-uu-mark-sparse t]
+	  ["Mark thread" gnus-uu-mark-thread t]))
+	("Move"
+	 ["Scroll article forwards" gnus-summary-next-page t]
+	 ["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 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]
+	 ["Go to subject number..." gnus-summary-goto-subject 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 author" gnus-summary-sort-by-author t]
+	 ["Sort by subject" gnus-summary-sort-by-subject t]
+	 ["Sort by date" gnus-summary-sort-by-date t]
+	 ["Sort by score" gnus-summary-sort-by-score t])
+	("Exit"
+	 ["Catchup and exit" gnus-summary-catchup-and-exit t]
+	 ["Catchup and goto next" gnus-summary-catchup-and-goto-next-group t]
+	 ["Exit group" gnus-summary-exit t]
+	 ["Exit group without updating" gnus-summary-exit-no-update t]
+	 ["Reselect group" gnus-summary-reselect-current-group t]
+	 ["Rescan group" gnus-summary-rescan-group t])
+	["Fetch group FAQ" gnus-summary-fetch-faq t]
+	["Filter articles" gnus-summary-execute-command t]
+	["Toggle line truncation" gnus-summary-toggle-truncation t]
+	["Expire expirable articles" gnus-summary-expire-articles t]
+	["Describe group" gnus-summary-describe-group t]
+	["Edit local kill file" gnus-summary-edit-local-kill t]
+	))
+
+     (easy-menu-define
+      gnus-summary-kill-menu
+      gnus-summary-mode-map
+      ""
+      (cons
+       "Score"
+       (nconc
+	(list
+	 ["Enter score" gnus-summary-score-entry t])
+	(gnus-visual-score-map 'increase)
+	(gnus-visual-score-map 'lower)
+	'(["Current score" gnus-summary-current-score t]
+	  ["Set score" gnus-summary-set-score t]
+	  ["Customize score file" gnus-score-customize 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-alist t]
+	  ["Edit score file" gnus-score-edit-file t]
+	  ["Trace score" gnus-score-find-trace t]
+	  ["Increase score" gnus-summary-increase-score t]
+	  ["Lower score" gnus-summary-lower-score t]))))
+
+     (and nil
+	  '(("Default header"
+	     ["Ask" (gnus-score-set-default 'gnus-score-default-header nil)
+	      :style radio 
+	      :selected (null gnus-score-default-header)]
+	     ["From" (gnus-score-set-default 'gnus-score-default-header 'a)
+	      :style radio 
+	      :selected (eq gnus-score-default-header 'a )]
+	     ["Subject" (gnus-score-set-default 'gnus-score-default-header 's)
+	      :style radio 
+	      :selected (eq gnus-score-default-header 's )]
+	     ["Article body"
+	      (gnus-score-set-default 'gnus-score-default-header 'b)
+	      :style radio 
+	      :selected (eq gnus-score-default-header 'b )]
+	     ["All headers"
+	      (gnus-score-set-default 'gnus-score-default-header 'h)
+	      :style radio 
+	      :selected (eq gnus-score-default-header 'h )]
+	     ["Message-Id" (gnus-score-set-default 'gnus-score-default-header 'i)
+	      :style radio 
+	      :selected (eq gnus-score-default-header 'i )]
+	     ["Thread" (gnus-score-set-default 'gnus-score-default-header 't)
+	      :style radio 
+	      :selected (eq gnus-score-default-header 't )]
+	     ["Crossposting"
+	      (gnus-score-set-default 'gnus-score-default-header 'x)
+	      :style radio 
+	      :selected (eq gnus-score-default-header 'x )]
+	     ["Lines" (gnus-score-set-default 'gnus-score-default-header 'l)
+	      :style radio 
+	      :selected (eq gnus-score-default-header 'l )]
+	     ["Date" (gnus-score-set-default 'gnus-score-default-header 'd)
+	      :style radio 
+	      :selected (eq gnus-score-default-header 'd )]
+	     ["Followups to author"
+	      (gnus-score-set-default 'gnus-score-default-header 'f)
+	      :style radio 
+	      :selected (eq gnus-score-default-header 'f )])
+	    ("Default type"
+	     ["Ask" (gnus-score-set-default 'gnus-score-default-type nil)
+	      :style radio 
+	      :selected (null gnus-score-default-type)]
+	     ;; The `:active' key is commented out in the following,
+	     ;; because the GNU Emacs hack to support radio buttons use
+	     ;; active to indicate which button is selected.  
+	     ["Substring" (gnus-score-set-default 'gnus-score-default-type 's)
+	      :style radio 
+	      ;; :active (not (memq gnus-score-default-header '(l d)))
+	      :selected (eq gnus-score-default-type 's)]
+	     ["Regexp" (gnus-score-set-default 'gnus-score-default-type 'r)
+	      :style radio
+	      ;; :active (not (memq gnus-score-default-header '(l d)))
+	      :selected (eq gnus-score-default-type 'r)]
+	     ["Exact" (gnus-score-set-default 'gnus-score-default-type 'e)
+	      :style radio
+	      ;; :active (not (memq gnus-score-default-header '(l d)))
+	      :selected (eq gnus-score-default-type 'e)]
+	     ["Fuzzy" (gnus-score-set-default 'gnus-score-default-type 'f)
+	      :style radio 
+	      ;; :active (not (memq gnus-score-default-header '(l d)))
+	      :selected (eq gnus-score-default-type 'f)]
+	     ["Before date" (gnus-score-set-default 'gnus-score-default-type 'b)
+	      :style radio 
+	      ;; :active (eq (gnus-score-default-header 'd))
+	      :selected (eq gnus-score-default-type 'b)]
+	     ["At date" (gnus-score-set-default 'gnus-score-default-type 'n)
+	      :style radio 
+	      ;; :active (eq (gnus-score-default-header 'd))
+	      :selected (eq gnus-score-default-type 'n)]
+	     ["After date" (gnus-score-set-default 'gnus-score-default-type 'a)
+	      :style radio 
+	      ;; :active (eq (gnus-score-default-header 'd))
+	      :selected (eq gnus-score-default-type 'a)]
+	     ["Less than number"
+	      (gnus-score-set-default 'gnus-score-default-type '<)
+	      :style radio 
+	      ;; :active (eq (gnus-score-default-header 'l))
+	      :selected (eq gnus-score-default-type '<)]
+	     ["Equal to number"
+	      (gnus-score-set-default 'gnus-score-default-type '=)
+	      :style radio 
+	      ;; :active (eq (gnus-score-default-header 'l))
+	      :selected (eq gnus-score-default-type '=)]
+	     ["Greater than number" 
+	      (gnus-score-set-default 'gnus-score-default-type '>)
+	      :style radio 
+	      ;; :active (eq (gnus-score-default-header 'l))
+	      :selected (eq gnus-score-default-type '>)])
+	    ["Default fold" gnus-score-default-fold-toggle
+	     :style toggle
+	     :selected gnus-score-default-fold]
+	    ("Default duration"
+	     ["Ask" (gnus-score-set-default 'gnus-score-default-duration nil)
+	      :style radio
+	      :selected (null gnus-score-default-duration)]
+	     ["Permanent"
+	      (gnus-score-set-default 'gnus-score-default-duration 'p)
+	      :style radio
+	      :selected (eq gnus-score-default-duration 'p)]
+	     ["Temporary"
+	      (gnus-score-set-default 'gnus-score-default-duration 't)
+	      :style radio
+	      :selected (eq gnus-score-default-duration 't)]
+	     ["Immediate" 
+	      (gnus-score-set-default 'gnus-score-default-duration 'i)
+	      :style radio
+	      :selected (eq gnus-score-default-duration 'i)])
+	    ))
+
+     (easy-menu-define
+      gnus-summary-article-menu
+      gnus-summary-mode-map
+      ""
+      '("Article"
+	("Hide"
+	 ["All" gnus-article-hide t]
+	 ["Headers" gnus-article-hide-headers t]
+	 ["Signature" gnus-article-hide-signature t]
+	 ["Citation" gnus-article-hide-citation 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])
+	("Date"
+	 ["Local" gnus-article-date-local t]
+	 ["UT" gnus-article-date-ut t]
+	 ["Lapsed" gnus-article-date-lapsed t])
+	("Filter"
+	 ["Overstrike" gnus-article-treat-overstrike t]
+	 ["Word wrap" gnus-article-word-wrap t]
+	 ["CR" gnus-article-remove-cr t]
+	 ["Show X-Face" gnus-article-display-x-face t]
+	 ["Quoted-Printable" gnus-article-de-quoted-unreadable t]
+	 ["Rot 13" gnus-summary-caesar-message t]
+	 ["Add buttons" gnus-article-add-buttons t]
+	 ["Stop page breaking" gnus-summary-stop-page-breaking t]
+	 ["Toggle MIME" gnus-summary-toggle-mime t]
+	 ["Toggle header" gnus-summary-toggle-header t])
+	("Output"
+	 ["Save in default format" gnus-summary-save-article t]
+	 ["Save in file" gnus-summary-save-article-file t]
+	 ["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]
+	 ["Pipe through a filter" gnus-summary-pipe-output t])
+	("Backend"
+	 ["Respool article" gnus-summary-respool-article t]
+	 ["Move article" gnus-summary-move-article t]
+	 ["Copy article" gnus-summary-copy-article t]
+	 ["Import file" gnus-summary-import-article t]
+	 ["Edit article" gnus-summary-edit-article t]
+	 ["Delete article" gnus-summary-delete-article t])
+	("Extract"
+	 ["Uudecode" gnus-uu-decode-uu t]
+	 ["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])
+	["Enter digest buffer" gnus-summary-enter-digest-group t]
+	["Isearch article" gnus-summary-isearch-article t]
+	["Search all articles" gnus-summary-search-article-forward 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 article with id..." gnus-summary-refer-article t]
+	["Redisplay" gnus-summary-show-article t]))
+
+
+	 
+     (easy-menu-define
+      gnus-summary-thread-menu
+      gnus-summary-mode-map
+      ""
+      '("Threads"
+	["Toggle threading" gnus-summary-toggle-threads t]
+	["Display hidden thread" gnus-summary-show-thread t]
+	["Hide thread" gnus-summary-hide-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]
+	["Mark thread as read" gnus-summary-kill-thread t]
+	["Lower thread score" gnus-summary-lower-thread t]
+	["Raise thread score" gnus-summary-raise-thread t]
+	))
+     (easy-menu-define
+      gnus-summary-post-menu
+      gnus-summary-mode-map
+      ""
+      '("Post"
+	["Post an article" gnus-summary-post-news t]
+	["Followup" gnus-summary-followup t]
+	["Followup and yank" gnus-summary-followup-with-original t]
+	["Supersede article" gnus-summary-supersede-article t]
+	["Cancel article" gnus-summary-cancel-article t]
+	["Reply" gnus-summary-reply t]
+	["Reply and yank" gnus-summary-reply-with-original t]
+	["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]
+	["Send a mail" gnus-summary-mail-other-window t]
+	["Reply & followup" gnus-summary-followup-and-reply t]
+	["Reply & followup and yank" gnus-summary-followup-and-reply-with-original t]
+	["Uuencode and post" gnus-uu-post-news t]
+	))
+     (run-hooks 'gnus-summary-menu-hook)
+     )))
+
+(defun gnus-score-set-default (var value)
+  ;; A version of set that updates the GNU Emacs menu-bar.
+  (set var value)
+  ;; It is the message that forces the active status to be updated.
+  (message ""))
+
+(defvar gnus-score-default-header nil
+  "Default header when entering new scores.
+
+Should be one of the following symbols.
+
+ a: from
+ s: subject
+ b: body
+ h: head
+ i: message-id
+ t: references
+ x: xref
+ l: lines
+ d: date
+ f: followup
+
+If nil, the user will be asked for a header.")
+
+(defvar gnus-score-default-type nil
+  "Default match type when entering new scores.
+
+Should be one of the following symbols.
+
+ s: substring
+ e: exact string
+ f: fuzzy string
+ r: regexp string
+ b: before date
+ a: at date
+ n: this date
+ <: less than number
+ >: greater than number
+ =: equal to number
+
+If nil, the user will be asked for a match type.")
+
+(defvar gnus-score-default-fold nil
+  "Use case folding for new score file entries iff not nil.")
+
+
+(defun gnus-score-default-fold-toggle ()
+  "Toggle folding for new score file entries."
+  (interactive)
+  (setq gnus-score-default-fold (not gnus-score-default-fold))
+  (if gnus-score-default-fold
+      (message "New score file entries will be case insensitive.")
+    (message "New score file entries will be case sensitive.")))
+
+(defvar gnus-score-default-duration nil
+  "Default duration of effect when entering new scores.
+
+Should be one of the following symbols.
+
+ t: temporary
+ p: permanent
+ i: immediate
+
+If nil, the user will be asked for a duration.")
+
+(defun gnus-visual-score-map (type)
+  (if t
+      nil
+    (let ((headers '(("author" "from" string)
+		     ("subject" "subject" string)
+		     ("article body" "body" string)
+		     ("article head" "head" string)
+		     ("xref" "xref" 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 (car (car ts)))
+				(let ((ps perms)
+				      outp)
+				  (while ps
+				    (setq outp
+					  (cons
+					   (vector
+					    (car (car 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-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))))))))
+ 
+;; Article buffer
+(defun gnus-article-make-menu-bar ()
+  (gnus-visual-turn-off-edit-menu 'summary)
+  (or
+   (boundp 'gnus-article-article-menu)
+   (progn
+     (easy-menu-define
+      gnus-article-article-menu
+      gnus-article-mode-map
+      ""
+      '("Article"
+	["Scroll forwards" gnus-article-next-page t]
+	["Scroll backwards" gnus-article-prev-page t]
+	["Show summary" gnus-article-show-summary t]
+	["Fetch Message-ID at point" gnus-article-refer-article t]
+	["Mail to address at point" gnus-article-mail t]
+	))
+
+     (easy-menu-define
+      gnus-article-treatment-menu
+      gnus-article-mode-map
+      ""
+      '("Treatment"
+	["Hide headers" gnus-article-hide-headers t]
+	["Hide signature" gnus-article-hide-signature t]
+	["Hide citation" gnus-article-hide-citation t]
+	["Treat overstrike" gnus-article-treat-overstrike t]
+	["Remove carriage return" gnus-article-remove-cr t]
+	["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]
+	))
+     (run-hooks 'gnus-article-menu-hook)
+     )))
+
+;;;
+;;; summary highlights
+;;;
+
+(defun gnus-highlight-selected-summary ()
+  ;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
+  ;; Highlight selected article in summary buffer
+  (if gnus-summary-selected-face
+      (save-excursion
+	(let* ((beg (progn (beginning-of-line) (point)))
+	       (end (progn (end-of-line) (point)))
+	       ;; Fix by Mike Dugan <dugan@bucrf16.bu.edu>.
+	       (from (if (get-text-property beg 'mouse-face) 
+			 beg
+		       (1+ (or (next-single-property-change 
+				beg 'mouse-face nil end) 
+			       beg))))
+	       (to (1- (or (next-single-property-change
+			    from 'mouse-face nil end)
+			   end))))
+	  ;; If no mouse-face prop on line (e.g. xemacs) we 
+	  ;; will have to = from = end, so we highlight the
+	  ;; entire line instead.
+	  (if (= (+ to 2) from)
+	      (progn
+		(setq from beg)
+		(setq to end)))
+	  (if gnus-newsgroup-selected-overlay
+	      (gnus-move-overlay gnus-newsgroup-selected-overlay 
+				 from to (current-buffer))
+	    (setq gnus-newsgroup-selected-overlay (gnus-make-overlay from to))
+	    (gnus-overlay-put gnus-newsgroup-selected-overlay 'face 
+			      gnus-summary-selected-face))))))
+
+;; New implementation by Christian Limpach <Christian.Limpach@nice.ch>.
+(defun gnus-summary-highlight-line ()
+  "Highlight current line according to `gnus-summary-highlight'."
+  (let* ((list gnus-summary-highlight)
+	 (p (point))
+	 (end (progn (end-of-line) (point)))
+	 ;; now find out where the line starts and leave point there.
+	 (beg (progn (beginning-of-line) (point)))
+	 (score (or (cdr (assq (or (get-text-property beg 'gnus-number)
+				   gnus-current-article)
+			       gnus-newsgroup-scored))
+		    gnus-summary-default-score 0))
+	 (default gnus-summary-default-score)
+	 (mark (get-text-property beg 'gnus-mark))
+	 (inhibit-read-only t))
+    (while (and list (not (eval (car (car list)))))
+      (setq list (cdr list)))
+    (let ((face (and list (cdr (car list)))))
+      (or (eobp)
+	  (eq face (get-text-property beg 'face))
+	  (put-text-property beg end 'face 
+			     (if (boundp face) (symbol-value face) face))))
+    (goto-char p)))
+
+;;;
+;;; gnus-carpal
+;;;
+
+(defvar gnus-carpal-group-buffer-buttons
+  '(("next" . gnus-group-next-unread-group)
+    ("prev" . gnus-group-prev-unread-group)
+    ("read" . gnus-group-read-group)
+    ("select" . gnus-group-select-group)
+    ("catch-up" . gnus-group-catchup-current)
+    ("new-news" . gnus-group-get-new-news-this-group)
+    ("toggle-sub" . gnus-group-unsubscribe-current-group)
+    ("subscribe" . gnus-group-unsubscribe-group)
+    ("kill" . gnus-group-kill-group)
+    ("yank" . gnus-group-yank-group)
+    ("describe" . gnus-group-describe-group)
+    "list"
+    ("subscribed" . gnus-group-list-groups)
+    ("all" . gnus-group-list-all-groups)
+    ("killed" . gnus-group-list-killed)
+    ("zombies" . gnus-group-list-zombies)
+    ("matching" . gnus-group-list-matching)
+    ("post" . gnus-group-post-news)
+    ("mail" . gnus-group-mail)
+    ("rescan" . gnus-group-get-new-news)
+    ("browse-foreign" . gnus-group-browse-foreign)
+    ("exit" . gnus-group-exit)))
+
+(defvar gnus-carpal-summary-buffer-buttons
+  '("mark" 
+    ("read" . gnus-summary-mark-as-read-forward)
+    ("tick" . gnus-summary-tick-article-forward)
+    ("clear" . gnus-summary-clear-mark-forward)
+    ("expirable" . gnus-summary-mark-as-expirable)
+    "move"
+    ("scroll" . gnus-summary-next-page)
+    ("next-unread" . gnus-summary-next-unread-article)
+    ("prev-unread" . gnus-summary-prev-unread-article)
+    ("first" . gnus-summary-first-unread-article)
+    ("best" . gnus-summary-best-unread-article)
+    "article"
+    ("headers" . gnus-summary-toggle-header)
+    ("uudecode" . gnus-uu-decode-uu)
+    ("enter-digest" . gnus-summary-enter-digest-group)
+    ("fetch-parent" . gnus-summary-refer-parent-article)
+    "mail"
+    ("move" . gnus-summary-move-article)
+    ("copy" . gnus-summary-copy-article)
+    ("respool" . gnus-summary-respool-article)
+    "threads"
+    ("lower" . gnus-summary-lower-thread)
+    ("kill" . gnus-summary-kill-thread)
+    "post"
+    ("post" . gnus-summary-post-news)
+    ("mail" . gnus-summary-mail)
+    ("followup" . gnus-summary-followup-with-original)
+    ("reply" . gnus-summary-reply-with-original)
+    ("cancel" . gnus-summary-cancel-article)
+    "misc"
+    ("exit" . gnus-summary-exit)
+    ("fed-up" . gnus-summary-catchup-and-goto-next-group)))
+
+(defvar gnus-carpal-server-buffer-buttons 
+  '(("add" . gnus-server-add-server)
+    ("browse" . gnus-server-browse-server)
+    ("list" . gnus-server-list-servers)
+    ("kill" . gnus-server-kill-server)
+    ("yank" . gnus-server-yank-server)
+    ("copy" . gnus-server-copy-server)
+    ("exit" . gnus-server-exit)))
+
+(defvar gnus-carpal-browse-buffer-buttons
+  '(("subscribe" . gnus-browse-unsubscribe-current-group)
+    ("exit" . gnus-browse-exit)))
+
+(defvar gnus-carpal-group-buffer "*Carpal Group*")
+(defvar gnus-carpal-summary-buffer "*Carpal Summary*")
+(defvar gnus-carpal-server-buffer "*Carpal Server*")
+(defvar gnus-carpal-browse-buffer "*Carpal Browse*")
+
+(defvar gnus-carpal-attached-buffer nil)
+
+(defvar gnus-carpal-mode-hook nil
+  "*Hook run in carpal mode buffers.")
+
+(defvar gnus-carpal-button-face 'bold
+  "*Face used on carpal buttons.")
+
+(defvar gnus-carpal-header-face 'bold-italic
+  "*Face used on carpal buffer headers.")
+
+(defvar gnus-carpal-mode-map nil)
+(put 'gnus-carpal-mode 'mode-class 'special)
+
+(if gnus-carpal-mode-map
+    nil
+  (setq gnus-carpal-mode-map (make-keymap))
+  (suppress-keymap gnus-carpal-mode-map)
+  (define-key gnus-carpal-mode-map " " 'gnus-carpal-select)
+  (define-key gnus-carpal-mode-map "\r" 'gnus-carpal-select)
+  (define-key gnus-carpal-mode-map gnus-mouse-2 'gnus-carpal-mouse-select))
+
+(defun gnus-carpal-mode ()
+  "Major mode for clicking buttons.
+
+All normal editing commands are switched off.
+\\<gnus-carpal-mode-map>
+The following commands are available:
+
+\\{gnus-carpal-mode-map}"
+  (interactive)
+  (kill-all-local-variables)
+  (setq mode-line-modified "-- ")
+  (setq major-mode 'gnus-carpal-mode)
+  (setq mode-name "Gnus Carpal")
+  (setq mode-line-process nil)
+  (use-local-map gnus-carpal-mode-map)
+  (buffer-disable-undo (current-buffer))
+  (setq buffer-read-only t)
+  (make-local-variable 'gnus-carpal-attached-buffer)
+  (run-hooks 'gnus-carpal-mode-hook))
+
+(defun gnus-carpal-setup-buffer (type)
+  (let ((buffer (symbol-value (intern (format "gnus-carpal-%s-buffer" type)))))
+    (if (get-buffer buffer)
+	()
+      (save-excursion
+	(set-buffer (get-buffer-create buffer))
+	(gnus-carpal-mode)
+	(setq gnus-carpal-attached-buffer 
+	      (intern (format "gnus-%s-buffer" type)))
+	(gnus-add-current-to-buffer-list)
+	(let ((buttons (symbol-value 
+			(intern (format "gnus-carpal-%s-buffer-buttons"
+					type))))
+	      (buffer-read-only nil)
+	      button)
+	  (while buttons
+	    (setq button (car buttons)
+		  buttons (cdr buttons))
+	    (if (stringp button)
+		(set-text-properties
+		 (point)
+		 (prog2 (insert button) (point) (insert " "))
+		 (list 'face gnus-carpal-header-face))
+	      (set-text-properties
+	       (point)
+	       (prog2 (insert (car button)) (point) (insert " "))
+	       (list 'gnus-callback (cdr button)
+		     'face gnus-carpal-button-face
+		     'mouse-face 'highlight))))
+	  (let ((fill-column (- (window-width) 2)))
+	    (fill-region (point-min) (point-max)))
+	  (set-window-point (get-buffer-window (current-buffer)) 
+			    (point-min)))))))
+
+(defun gnus-carpal-select ()
+  "Select the button under point."
+  (interactive)
+  (let ((func (get-text-property (point) 'gnus-callback)))
+    (if (null func)
+	()
+      (pop-to-buffer (symbol-value gnus-carpal-attached-buffer))
+      (call-interactively func))))
+
+(defun gnus-carpal-mouse-select (event)
+  "Select the button under the mouse pointer."
+  (interactive "e")
+  (mouse-set-point event)
+  (gnus-carpal-select))
+
+;;; 
+;;; article highlights
+;;;
+
+;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
+
+;;; Internal Variables:
+
+(defvar gnus-button-regexp nil)
+;; Regexp matching any of the regexps from `gnus-button-alist'.
+
+(defvar gnus-button-last nil)
+;; The value of `gnus-button-alist' when `gnus-button-regexp' was build.
+
+;;; Commands:
+
+(defun gnus-article-push-button (event)
+  "Check text under the mouse pointer for a callback function.
+If the text under the mouse pointer has a `gnus-callback' property,
+call it with the value of the `gnus-data' text property."
+  (interactive "e")
+  (set-buffer (window-buffer (posn-window (event-start event))))
+  (let* ((pos (posn-point (event-start event)))
+         (data (get-text-property pos 'gnus-data))
+	 (fun (get-text-property pos 'gnus-callback)))
+    (if fun (funcall fun data))))
+
+(defun gnus-article-press-button ()
+  "Check text at point for a callback function.
+If the text at point has a `gnus-callback' property,
+call it with the value of the `gnus-data' text property."
+  (interactive)
+  (let* ((data (get-text-property (point) 'gnus-data))
+	 (fun (get-text-property (point) 'gnus-callback)))
+    (if fun (funcall fun data))))
+
+;; Suggested by Arne Elofsson <arne@hodgkin.mbi.ucla.edu>
+(defun gnus-article-next-button ()
+  "Move point to next button."
+  (interactive)
+  (if (get-text-property (point) 'gnus-callback)
+      (goto-char (next-single-property-change (point) 'gnus-callback
+					      nil (point-max))))
+  (let ((pos (next-single-property-change (point) 'gnus-callback)))
+    (if pos
+	(goto-char pos)
+      (setq pos (next-single-property-change (point-min) 'gnus-callback))
+      (if pos
+	  (goto-char pos)
+	(error "No buttons found")))))
+
+(defun gnus-article-highlight (&optional force)
+  "Highlight current article.
+This function calls `gnus-article-highlight-headers',
+`gnus-article-highlight-citation', 
+`gnus-article-highlight-signature', and `gnus-article-add-buttons' to
+do the highlighting.  See the documentation for those functions."
+  (interactive (list 'force))
+  (gnus-article-highlight-headers)
+  (gnus-article-highlight-citation force)
+  (gnus-article-highlight-signature)
+  (gnus-article-add-buttons force))
+
+(defun gnus-article-highlight-some (&optional force)
+  "Highlight current article.
+This function calls `gnus-article-highlight-headers',
+`gnus-article-highlight-signature', and `gnus-article-add-buttons' to
+do the highlighting.  See the documentation for those functions."
+  (interactive (list 'force))
+  (gnus-article-highlight-headers)
+  (gnus-article-highlight-signature)
+  (gnus-article-add-buttons))
+
+(defun gnus-article-hide (&optional force)
+  "Hide current article.
+This function calls `gnus-article-hide-headers',
+`gnus-article-hide-citation-maybe', and `gnus-article-hide-signature'
+to do the hiding.  See the documentation for those functions." 
+  (interactive (list 'force))
+  (gnus-article-hide-headers)
+  (gnus-article-hide-citation-maybe force)
+  (gnus-article-hide-signature))
+
+(defun gnus-article-highlight-headers ()
+  "Highlight article headers as specified by `gnus-header-face-alist'."
+  (interactive)
+  (save-excursion
+    (set-buffer gnus-article-buffer)
+    (goto-char (point-min))
+    (if (not (search-forward "\n\n" nil t))
+	()
+      (beginning-of-line 0)
+      (while (not (bobp))
+	(let ((alist gnus-header-face-alist)
+	      (buffer-read-only nil)
+	      (case-fold-search t)
+	      (end (point))
+	      (inhibit-point-motion-hooks t)
+	      begin entry regexp header-face field-face 
+	      header-found field-found)
+	  (re-search-backward "^[^ \t]" nil t)
+	  (setq begin (point))
+	  (while alist
+	    (setq entry (car alist)
+		  regexp (nth 0 entry)
+		  header-face (nth 1 entry)
+		  field-face (nth 2 entry)
+		  alist (cdr alist))
+	    (if (looking-at regexp)
+		(let ((from (point)))
+		  (skip-chars-forward "^:\n")
+		  (and (not header-found)
+		       header-face
+		       (progn
+			 (put-text-property  from (point) 'face header-face)
+			 (setq header-found t)))
+		  (and (not field-found)
+		       field-face
+		       (progn 
+			 (skip-chars-forward ": \t")
+			 (let ((from (point)))
+			   (goto-char end)
+			   (skip-chars-backward " \t")
+			   (put-text-property from (point) 'face field-face)
+			   (setq field-found t))))))
+	    (goto-char begin)))))))
+
+(defun gnus-article-highlight-signature ()
+  "Highlight the signature in an article.
+It does this by highlighting everything after
+`gnus-signature-separator' using `gnus-signature-face'." 
+  (interactive)
+  (save-excursion
+    (set-buffer gnus-article-buffer)
+    (let ((buffer-read-only nil)
+	  (inhibit-point-motion-hooks t))
+      (goto-char (point-max))
+      (and (re-search-backward gnus-signature-separator nil t)
+	   gnus-signature-face
+	   (let ((start (match-beginning 0))
+		 (end (match-end 0)))
+	     (gnus-article-add-button start end 'gnus-signature-toggle end)
+	     (gnus-overlay-put (gnus-make-overlay end (point-max))
+			       'face gnus-signature-face))))))
+
+(defun gnus-article-hide-signature ()
+  "Hide the signature in an article.
+It does this by making everything after `gnus-signature-separator' invisible."
+  (interactive)
+  (save-excursion
+    (set-buffer gnus-article-buffer)
+    (let ((buffer-read-only nil))
+      (goto-char (point-max))
+      (and (re-search-backward gnus-signature-separator nil t)
+	   gnus-signature-face
+	   (add-text-properties (match-end 0) (point-max)
+				gnus-hidden-properties)))))
+
+(defun gnus-article-add-buttons (&optional force)
+  "Find external references in article and make them to buttons.
+
+External references are things like message-ids and URLs, as specified by 
+`gnus-button-alist'."
+  (interactive (list 'force))
+  (if (eq gnus-button-last gnus-button-alist)
+      ()
+    (setq gnus-button-regexp (mapconcat 'car gnus-button-alist  "\\|")
+	  gnus-button-last gnus-button-alist))
+  (save-excursion
+    (set-buffer gnus-article-buffer)
+    (gnus-cite-parse-maybe force)
+    (let ((buffer-read-only nil)
+	  (inhibit-point-motion-hooks t)
+	  (case-fold-search t))
+      (goto-char (point-min))
+      (or (search-forward "\n\n" nil t)
+	  (goto-char (point-max)))
+      (while (re-search-forward gnus-button-regexp nil t)
+	(goto-char (match-beginning 0))
+	(let* ((from (point))
+	       (entry (gnus-button-entry))
+	       (start (and entry (match-beginning (nth 1 entry))))
+	       (end (and entry (match-end (nth 1 entry))))
+	       (form (nth 2 entry)))
+	  (if (not entry)
+	      ()
+	    (goto-char (match-end 0))
+	    (if (eval form)
+		(gnus-article-add-button start end 'gnus-button-push
+					 (set-marker (make-marker)
+						     from)))))))))
+(defun gnus-netscape-open-url (url)
+  "Open URL in netscape, or start new scape with URL."
+  (let ((process (start-process (concat "netscape " url)
+				nil
+				"netscape"
+				"-remote" 
+				(concat "openUrl(" url ")'"))))
+    (set-process-sentinel process 
+			  (` (lambda (process change)
+			       (or (eq (process-exit-status process) 0)
+				   (gnus-netscape-start-url (, url))))))))
+
+(defun gnus-netscape-start-url (url)
+  "Start netscape with URL."
+  (start-process (concat "netscape" url) nil "netscape" url))
+
+;;; External functions:
+
+(defun gnus-article-add-button (from to fun &optional data)
+  "Create a button between FROM and TO with callback FUN and data DATA."
+  (and gnus-article-button-face
+       (gnus-overlay-put (gnus-make-overlay from to)
+			 'face gnus-article-button-face))
+  (add-text-properties from to
+		       (append (and gnus-article-mouse-face
+				    (list 'mouse-face gnus-article-mouse-face))
+			       (list 'gnus-callback fun)
+			       (and data (list 'gnus-data data)))))
+
+;;; Internal functions:
+
+(defun gnus-signature-toggle (end)
+  (save-excursion
+    (set-buffer gnus-article-buffer)
+    (let ((buffer-read-only nil))
+      (if (get-text-property end 'invisible)
+	  (remove-text-properties end (point-max) gnus-hidden-properties)
+	(add-text-properties end (point-max) gnus-hidden-properties)))))
+
+;see gnus-cus.el
+;(defun gnus-make-face (color)
+;  ;; Create entry for face with COLOR.
+;  (if gnus-make-foreground
+;      (custom-face-lookup color nil nil nil nil nil)
+;    (custom-face-lookup nil color nil nil nil nil)))
+
+(defun gnus-button-entry ()
+  ;; Return the first entry in `gnus-button-alist' matching this place.
+  (let ((alist gnus-button-alist)
+	(entry nil))
+    (while alist
+      (setq entry (car alist)
+	    alist (cdr alist))
+      (if (looking-at (car entry))
+	  (setq alist nil)
+	(setq entry nil)))
+    entry))
+
+(defun gnus-button-push (marker)
+  ;; Push button starting at MARKER.
+  (save-excursion
+    (set-buffer gnus-article-buffer)
+    (goto-char marker)
+    (let* ((entry (gnus-button-entry))
+	   (inhibit-point-motion-hooks t)
+	   (fun (nth 3 entry))
+	   (args (mapcar (lambda (group) 
+			   (let ((string (buffer-substring
+					  (match-beginning group)
+					  (match-end group))))
+			     (set-text-properties 0 (length string) nil string)
+			     string))
+			 (nthcdr 4 entry))))
+      (cond ((fboundp fun)
+	     (apply fun args))
+	    ((and (boundp fun)
+		  (fboundp (symbol-value fun)))
+	     (apply (symbol-value fun) args))
+	    (t
+	     (message "You must define `%S' to use this button"
+		      (cons fun args)))))))
+
+(defun gnus-button-message-id (message-id)
+  ;; Push on MESSAGE-ID.
+  (save-excursion
+    (set-buffer gnus-summary-buffer)
+    (gnus-summary-refer-article message-id)))
+
+;;; Compatibility Functions:
+
+(or (fboundp 'rassoc)
+    ;; Introduced in Emacs 19.29.
+    (defun rassoc (elt list)
+      "Return non-nil if ELT is `equal' to the cdr of an element of LIST.
+The value is actually the element of LIST whose cdr is ELT."
+      (let (result)
+	(while list
+	  (setq result (car list))
+	  (if (equal (cdr result) elt)
+	      (setq list nil)
+	    (setq result nil
+		  list (cdr list))))
+	result)))
+
+; (require 'gnus-cus)
+(gnus-ems-redefine)
+(provide 'gnus-vis)
+
+;;; gnus-vis.el ends here