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+;; crisp.el -- Emulator for CRiSP/Brief key bindings
+
+;; Author: Gary D. Foster <Gary.Foster@corp.sun.com>
+;; Keywords: emulations brief crisp
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2, or (at your option)
+;; any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs; see the file COPYING.  If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+;;; Commentary:
+
+;; This file provides keybindings and minor functions to duplicate the
+;; functionality and finger-feel of the CRiSP/Brief editor.  This
+;; package is designed to facilitate transitioning from Brief to Emacs
+;; with a minimum amount of hassles.
+
+;; Enable this package by putting the following in your .emacs
+;; (require 'crisp)
+
+;; This package will automatically default to loading the scroll-lock.el
+;; package unless you put (setq crisp-load-scroll-lock nil) in your
+;; .emacs.  If this feature is enabled, it will bind meta-f1 to the
+;; scroll-lock mode toggle.
+
+;; Also, the default keybindings for brief override the Meta-x key to
+;; exit the editor.  If you don't like this functionality, you can
+;; prevent this key from being rebound with
+;; (setq crisp-override-meta-x nil) in your .emacs.
+
+;; All these overrides should go *before* the (require 'crisp) statement.
+
+;; local variables
+
+(defvar crisp-mode-map (copy-keymap (current-global-map))
+  "Keymap for CRiSP emulation.
+All the emulation bindings are done here instead of globally.")
+
+(defvar crisp-override-meta-x t
+  "Controls overriding the normal Emacs M-x key binding in the CRiSP emulator.
+Normally the CRiSP emulator rebinds M-x to save-buffers-exit-emacs
+and provides the usual M-x functionality on the F10 key.
+
+If this variable is nil when you start the CRiSP emulator, it
+does not alter the binding of M-x.")
+
+(defvar crisp-load-scroll-lock t
+  "Controls loading of Scroll Lock in the CRiSP emulator.
+Its default behavior is to load and enable the Scroll Lock minor mode
+package when enabling the CRiSP emulator.
+
+If this variable is nil when you start the CRiSP emulator, it
+does not load Scroll Lock.")
+
+(defvar crisp-load-hook nil
+  "Hooks to run after loading the CRiSP emulator package.")
+
+;; and now the keymap defines
+
+(define-key crisp-mode-map [(f1)]           'other-window)
+
+(define-key crisp-mode-map [(f2) (down)]    'enlarge-window)
+(define-key crisp-mode-map [(f2) (left)]    'shrink-window-horizontally)
+(define-key crisp-mode-map [(f2) (right)]   'enlarge-window-horizontally)
+(define-key crisp-mode-map [(f2) (up)]      'shrink-window)
+(define-key crisp-mode-map [(f3) (down)]    'split-window-vertically)
+(define-key crisp-mode-map [(f3) (right)]   'split-window-horizontally)
+
+(define-key crisp-mode-map [(f4)]           'delete-window)
+(define-key crisp-mode-map [(control f4)]   'delete-other-windows)
+
+(define-key crisp-mode-map [(f5)]           'search-forward-regexp)
+(define-key crisp-mode-map [(f19)]          'search-forward-regexp)
+(define-key crisp-mode-map [(meta f5)]       'search-backward-regexp)
+
+(define-key crisp-mode-map [(f6)]           'query-replace)
+
+(define-key crisp-mode-map [(f7)]           'start-kbd-macro)
+(define-key crisp-mode-map [(meta f7)]       'end-kbd-macro)
+
+(define-key crisp-mode-map [(f8)]           'call-last-kbd-macro)
+(define-key crisp-mode-map [(meta f8)]      'save-kbd-macro)
+
+(define-key crisp-mode-map [(f9)]           'find-file)
+(define-key crisp-mode-map [(meta f9)]       'load-library)
+
+(define-key crisp-mode-map [(f10)]          'execute-extended-command)
+(define-key crisp-mode-map [(meta f10)]      'compile)
+
+(define-key crisp-mode-map [(SunF37)]          'kill-buffer)
+(define-key crisp-mode-map [(kp_add)]       'x-copy-primary-selection)
+(define-key crisp-mode-map [(kp_subtract)]  'x-kill-primary-selection)
+(define-key crisp-mode-map [(insert)]       'x-yank-clipboard-selection)
+(define-key crisp-mode-map [(f16)]          'x-copy-primary-selection) ; copy on Sun5 kbd
+(define-key crisp-mode-map [(f20)]          'x-kill-primary-selection) ; cut on Sun5 kbd 
+(define-key crisp-mode-map [(f18)]          'x-yank-clipboard-selection) ; paste on Sun5 kbd
+
+(define-key crisp-mode-map [(meta d)]       (lambda () (interactive) (beginning-of-line) (kill-line)))
+(define-key crisp-mode-map [(meta e)]       'find-file)
+(define-key crisp-mode-map [(meta g)]       'goto-line)
+(define-key crisp-mode-map [(meta h)]       'help)
+(define-key crisp-mode-map [(meta i)]       'overwrite-mode)
+(define-key crisp-mode-map [(meta u)]       'advertised-undo)
+(define-key crisp-mode-map [(f14)]          'advertised-undo)
+(define-key crisp-mode-map [(meta w)]       'save-buffer)
+(if
+ (eq crisp-override-meta-x 't)
+  (define-key crisp-mode-map [(meta x)]       'save-buffers-kill-emacs))
+
+(define-key crisp-mode-map [(shift right)]  'fkey-forward-word)
+(define-key crisp-mode-map [(shift left)]   'fkey-backward-word)
+(define-key crisp-mode-map [(shift delete)] 'kill-word)
+(define-key crisp-mode-map [(shift backspace)] 'backward-kill-word)
+(define-key crisp-mode-map [(control left)] 'backward-word)
+(define-key crisp-mode-map [(control right)] 'forward-word)
+
+(define-key crisp-mode-map [(home)] 'crisp-home)
+(define-key crisp-mode-map [(end)] 'crisp-end)
+
+
+(defun crisp-home ()
+  "\"Home\" the point, the way CRiSP would do it.
+The first use moves point to beginning of the line.  Second
+consecutive use moves point to beginning of the screen.  Third
+consecutive use moves point to the beginning of the buffer."
+  (interactive nil)
+  (cond
+    ((and (eq last-command 'crisp-home) (eq last-last-command 'crisp-home))
+     (goto-char (point-min))
+    )
+    ((eq last-command 'crisp-home)
+     (move-to-window-line 0)
+    )
+    (t
+     (beginning-of-line)
+    )
+  )
+  (setq last-last-command last-command)
+)
+
+(defun crisp-end ()
+  "\"End\" the point, the way CRiSP would do it.
+The first use moves point to end of the line.  Second
+consecutive use moves point to the end of the screen.  Third
+consecutive use moves point to the end of the buffer."
+  (interactive nil)
+  (cond
+    ((and (eq last-command 'crisp-end) (eq last-last-command 'crisp-end))
+     (goto-char (point-max))
+    )
+    ((eq last-command 'crisp-end)
+     (move-to-window-line -1)
+     (end-of-line)
+    )
+    (t
+     (end-of-line)
+    )
+  )
+  (setq last-last-command last-command)
+)
+
+;; Now enable the mode
+
+(kill-all-local-variables)
+(use-global-map crisp-mode-map)
+
+(if (eq crisp-load-scroll-lock t)
+    (require 'scroll-lock))
+
+(if (featurep 'scroll-lock)
+    (define-key crisp-mode-map [(meta f1)] 'scroll-lock-mode))
+
+(run-hooks 'crisp-load-hook) ;; allow for hooks
+
+(provide 'crisp)
+
+;; crisp.el ends here