--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lisp/easymenu.el	Mon Aug 13 10:04:58 2007 +0200
@@ -0,0 +1,217 @@
+;;; easymenu.el - Easy menu support for Emacs 19 and XEmacs.
+
+;; Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+
+;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
+;; Maintainer: XEmacs Development Team
+;; Keywords: internal, extensions, dumped
+
+;; This file is part of XEmacs.
+
+;; XEmacs 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.
+
+;; XEmacs 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 XEmacs; if not, write to the Free Software
+;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+;; 02111-1307, USA.
+
+;;; Synched up with: Not synched with FSF.
+
+;; Commentary:
+
+;; This file is dumped with XEmacs.
+
+;; Easymenu allows you to define menus for both Emacs 19 and XEmacs.
+
+;; This file 
+;; The advantages of using easymenu are:
+
+;; - Easier to use than either the Emacs 19 and XEmacs menu syntax.
+
+;; - Common interface for Emacs 18, Emacs 19, and XEmacs.  
+;;   (The code does nothing when run under Emacs 18).
+
+;; The public functions are:
+
+;; - Function: easy-menu-define SYMBOL MAPS DOC MENU
+;;     SYMBOL is both the name of the variable that holds the menu and
+;;            the name of a function that will present a the menu.
+;;     MAPS is a list of keymaps where the menu should appear in the menubar.
+;;     DOC is the documentation string for the variable.
+;;     MENU is an XEmacs style menu description.  
+
+;;     See the documentation for easy-menu-define for details.
+
+;; - Function: easy-menu-change PATH NAME ITEMS
+;;     Change an existing menu.
+;;     The menu must already exist and be visible on the menu bar.
+;;     PATH is a list of strings used for locating the menu on the menu bar. 
+;;     NAME is the name of the menu.  
+;;     ITEMS is a list of menu items, as defined in `easy-menu-define'.
+
+;; - Function: easy-menu-add MENU [ MAP ]
+;;     Add MENU to the current menubar in MAP.
+
+;; - Function: easy-menu-remove MENU
+;;     Remove MENU from the current menubar.
+
+;; Emacs 19 never uses `easy-menu-add' or `easy-menu-remove', menus
+;; automatically appear and disappear when the keymaps specified by
+;; the MAPS argument to `easy-menu-define' are activated.
+
+;; XEmacs will bind the map to button3 in each MAPS, but you must
+;; explicitly call `easy-menu-add' and `easy-menu-remove' to add and
+;; remove menus from the menu bar.
+
+;;; Code:
+
+;; ;;;###autoload
+(defmacro easy-menu-define (symbol maps doc menu)
+  "Define a menu bar submenu in maps MAPS, according to MENU.
+The arguments SYMBOL and DOC are ignored; they are present for
+compatibility only.  SYMBOL is not evaluated.  In other Emacs versions
+these arguments may be used as a variable to hold the menu data, and a
+doc string for that variable.
+
+The first element of MENU must be a string.  It is the menu bar item name.
+The rest of the elements are menu items.
+
+A menu item is usually a vector of three elements:  [NAME CALLBACK ENABLE]
+
+NAME is a string--the menu item name.
+
+CALLBACK is a command to run when the item is chosen,
+or a list to evaluate when the item is chosen.
+
+ENABLE is an expression; the item is enabled for selection
+whenever this expression's value is non-nil.
+
+Alternatively, a menu item may have the form: 
+
+   [ NAME CALLBACK [ KEYWORD ARG ] ... ]
+
+Where KEYWORD is one of the symbol defined below.
+
+   :keys KEYS
+
+KEYS is a string; a complex keyboard equivalent to this menu item.
+
+   :active ENABLE
+
+ENABLE is an expression; the item is enabled for selection
+whenever this expression's value is non-nil.
+
+   :suffix NAME
+
+NAME is a string; the name of an argument to CALLBACK.
+
+   :style STYLE
+   
+STYLE is a symbol describing the type of menu item.  The following are
+defined:  
+
+toggle: A checkbox.  
+        Currently just prepend the name with the string \"Toggle \".
+radio: A radio button. 
+nil: An ordinary menu item.
+
+   :selected SELECTED
+
+SELECTED is an expression; the checkbox or radio button is selected
+whenever this expression's value is non-nil.
+Currently just disable radio buttons, no effect on checkboxes.
+
+A menu item can be a string.  Then that string appears in the menu as
+unselectable text.  A string consisting solely of hyphens is displayed
+as a solid horizontal line.
+
+A menu item can be a list.  It is treated as a submenu.
+The first element should be the submenu name.  That's used as the
+menu item in the top-level menu.  The cdr of the submenu list
+is a list of menu items, as above."
+  (` (progn
+       (defvar (, symbol) nil (, doc))
+       (easy-menu-do-define (quote (, symbol)) (, maps) (, doc) (, menu)))))
+
+(defun easy-menu-do-define (symbol maps doc menu)
+  (if (featurep 'menubar)
+      (progn
+	(set symbol menu)
+	(fset symbol (list 'lambda '(e)
+			   doc
+			   '(interactive "@e")
+			   '(run-hooks 'activate-menubar-hook)
+			   '(setq zmacs-region-stays 't)
+			   (list 'popup-menu symbol))))))
+
+(defun easy-menu-change (&rest args)
+  (when (featurep 'menubar)
+    (apply 'add-menu args)))
+
+;; This variable hold the easy-menu mode menus of all major and
+;; minor modes currently in effect in the current buffer.
+(defvar easy-menu-all-popups nil)
+(make-variable-buffer-local 'easy-menu-all-popups)
+
+(defun easy-menu-add (menu &optional map)
+  "Add MENU to the current menu bar."
+  (if (featurep 'menubar)
+      (progn
+	(unless (member menu easy-menu-all-popups)
+	  (push menu easy-menu-all-popups))
+	(setq mode-popup-menu (if (> (length easy-menu-all-popups) 1)
+				  (cons (easy-menu-title)
+					(reverse easy-menu-all-popups))
+				(car easy-menu-all-popups)))
+
+	(cond ((null current-menubar)
+	       ;; Don't add it to a non-existing menubar.
+	       nil)
+	      ((assoc (car menu) current-menubar)
+	       ;; Already present.
+	       nil)
+	      ((equal current-menubar '(nil))
+	       ;; Set at left if only contains right marker.
+	       (set-buffer-menubar (list menu nil)))
+	      (t
+	       ;; Add at right.
+	       (set-buffer-menubar (copy-sequence current-menubar))
+	       (add-menu nil (car menu) (cdr menu)))))))
+
+(defun easy-menu-remove (menu)
+  "Remove MENU from the current menu bar."
+  (if (featurep 'menubar)
+      (progn
+	(setq easy-menu-all-popups (delq menu easy-menu-all-popups)
+	      mode-popup-menu (if (< (length easy-menu-all-popups) 1)
+				  (cons (easy-menu-title)
+					(reverse easy-menu-all-popups))
+				(car easy-menu-all-popups)))
+
+	(and current-menubar
+	     (assoc (car menu) current-menubar)
+	     (delete-menu-item (list (car menu)))))))
+
+;; Think up a good title for the menu.  Take the major-mode of the
+;; buffer, strip the -mode part, convert hyphens to spaces, and
+;; capitalize it.
+;;
+;; If you can think of something smarter, feel free to replace it.
+;; Don't forget to mail the change to xemacs@xemacs.org where everyone
+;; can flame, er, praise your changes.
+(defun easy-menu-title ()
+  (capitalize (replace-in-string (replace-in-string
+				  (symbol-name major-mode) "-mode$" "")
+				 "-" " ")))
+
+(provide 'easymenu)
+
+;;; easymenu.el ends here