lisp/emulation/crisp.el

   1 ;;; crisp.el --- Emulator for CRiSP and Brief key bindings
   2
   3 ;; Copyright (C) 1997 Free Software Foundation, Inc.
   4
   5 ;; Author: Gary D. Foster <Gary.Foster@corp.sun.com>
   6 ;; Keywords: emulations
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software; you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation; either version 2, or (at your option)
  13 ;; any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23 ;; Boston, MA 02111-1307, USA.
  24
  25 ;;; Commentary:
  26
  27 ;; This file provides keybindings and minor functions to duplicate the
  28 ;; functionality and finger-feel of the CRiSP/Brief editor.  This
  29 ;; package is designed to facilitate transitioning from Brief to Emacs
  30 ;; with a minimum amount of hassles.
  31
  32 ;; Enable this package by putting the following in your .emacs
  33 ;; (require 'crisp)
  34 ;; and use M-x crisp-mode to toggle it on or off.
  35
  36 ;; This package will automatically default to loading the scroll-lock.el
  37 ;; package unless you put (setq crisp-load-scroll-lock nil) in your
  38 ;; .emacs.  If this feature is enabled, it will bind Meta-F1 to the
  39 ;; scroll-lock mode toggle.
  40
  41 ;; Also, the default keybindings for this mode override the Meta-x key to
  42 ;; make it exit the editor.  If you don't like this change, you can
  43 ;; prevent this key from being rebound with
  44 ;; (setq crisp-override-meta-x nil) in your .emacs.
  45
  46 ;; Finally, if you want to change the string displayed in the modeline
  47 ;; when this mode is in effect, override the definition of
  48 ;; `crisp-mode-modeline-string' in your .emacs.  The default value is
  49 ;; " *Crisp*" which may be a bit lengthy if you have a lot of things
  50 ;; being displayed there.
  51
  52 ;; All these overrides should go *before* the (require 'crisp) statement.
  53
  54 ;; local variables
  55
  56 (defvar crisp-mode-map (copy-keymap (current-global-map))
  57   "Local keymap for CRiSP emulation mode.
  58 All the emulation bindings are done here instead of globally.")
  59
  60 (defvar crisp-mode-modeline-string " *CRiSP*"
  61   "String to display in the modeline when CRiSP emulation mode is enabled.")
  62
  63 (defvar crisp-mode-original-keymap (copy-keymap (current-global-map))
  64   "The original keymap before CRiSP emulation mode remaps anything.
  65 This keymap is restored when CRiSP emulation mode is disabled.")
  66
  67 (defvar crisp-mode-enabled nil
  68   "Track status of CRiSP emulation mode.
  69 A value of nil means CRiSP mode is not enabled.  A value of t
  70 indicates CRiSP mode is enabled.")
  71
  72 (defvar crisp-override-meta-x t
  73   "Controls overriding the normal Emacs M-x key binding in the CRiSP emulator.
  74 Normally the CRiSP emulator rebinds M-x to save-buffers-exit-emacs
  75 and provides the usual M-x functionality on the F10 key.
  76
  77 If this variable is nil when you start the CRiSP emulator, it
  78 does not alter the binding of M-x.")
  79
  80 (defvar crisp-load-scroll-lock t
  81   "Controls loading of the Scroll Lock in the CRiSP emulator.
  82 Its Default behavior is to load and enable the Scroll Lock minor mode
  83 package when enabling the CRiSP emulator.
  84
  85 If this variable is nil when you start the CRiSP emulator, it
  86 does not load Scroll Lock.")
  87
  88 (defvar crisp-load-hook nil
  89   "Hooks to run after loadint the CRiSP emulator package.")
  90
  91 (defvar crisp-version "crisp.el release 1.1/$Revision: 1.17 $"
  92   "The release number and RCS version for the CRiSP emulator.")
  93
  94 (if (string-match "XEmacs\\Lucid" emacs-version)
  95     (add-minor-mode 'crisp-mode-enabled crisp-mode-modeline-string)
  96   (or (assq 'crisp-mode-enabled minor-mode-alist)
  97       (setq minor-mode-alist
  98             (cons '(crisp-mode-enabled crisp-mode-modeline-string) minor-mode-alist))))
  99
 100 ;; and now the keymap defines
 101
 102 (define-key crisp-mode-map [(f1)]           'other-window)
 103
 104 (define-key crisp-mode-map [(f2) (down)]    'enlarge-window)
 105 (define-key crisp-mode-map [(f2) (left)]    'shrink-window-horizontally)
 106 (define-key crisp-mode-map [(f2) (right)]   'enlarge-window-horizontally)
 107 (define-key crisp-mode-map [(f2) (up)]      'shrink-window)
 108 (define-key crisp-mode-map [(f3) (down)]    'split-window-vertically)
 109 (define-key crisp-mode-map [(f3) (right)]   'split-window-horizontally)
 110
 111 (define-key crisp-mode-map [(f4)]           'delete-window)
 112 (define-key crisp-mode-map [(control f4)]   'delete-other-windows)
 113
 114 (define-key crisp-mode-map [(f5)]           'search-forward-regexp)
 115 (define-key crisp-mode-map [(f19)]          'search-forward-regexp)
 116 (define-key crisp-mode-map [(meta f5)]       'search-backward-regexp)
 117
 118 (define-key crisp-mode-map [(f6)]           'query-replace)
 119
 120 (define-key crisp-mode-map [(f7)]           'start-kbd-macro)
 121 (define-key crisp-mode-map [(meta f7)]       'end-kbd-macro)
 122
 123 (define-key crisp-mode-map [(f8)]           'call-last-kbd-macro)
 124 (define-key crisp-mode-map [(meta f8)]      'save-kbd-macro)
 125
 126 (define-key crisp-mode-map [(f9)]           'find-file)
 127 (define-key crisp-mode-map [(meta f9)]       'load-library)
 128
 129 (define-key crisp-mode-map [(f10)]          'execute-extended-command)
 130 (define-key crisp-mode-map [(meta f10)]      'compile)
 131
 132 (define-key crisp-mode-map [(SunF37)]          'kill-buffer)
 133 (define-key crisp-mode-map [(kp-add)]       'x-copy-primary-selection)
 134 (define-key crisp-mode-map [(kp-subtract)]  'x-kill-primary-selection)
 135 (define-key crisp-mode-map [(insert)]       'x-yank-clipboard-selection)
 136 (define-key crisp-mode-map [(f16)]          'x-copy-primary-selection) ; copy on Sun5 kbd
 137 (define-key crisp-mode-map [(f20)]          'x-kill-primary-selection) ; cut on Sun5 kbd
 138 (define-key crisp-mode-map [(f18)]          'x-yank-clipboard-selection) ; paste on Sun5 kbd
 139
 140 (define-key crisp-mode-map [(meta d)]       (lambda () (interactive) (beginning-of-line) (kill-line)))
 141 (define-key crisp-mode-map [(meta e)]       'find-file)
 142 (define-key crisp-mode-map [(meta g)]       'goto-line)
 143 (define-key crisp-mode-map [(meta h)]       'help)
 144 (define-key crisp-mode-map [(meta i)]       'overwrite-mode)
 145 (define-key crisp-mode-map [(meta j)]       'bookmark-jump)
 146 (define-key crisp-mode-map [(meta u)]       'advertised-undo)
 147 (define-key crisp-mode-map [(f14)]          'advertised-undo)
 148 (define-key crisp-mode-map [(meta w)]       'save-buffer)
 149 (if
 150  (eq crisp-override-meta-x 't)
 151   (define-key crisp-mode-map [(meta x)]     'save-buffers-kill-emacs))
 152 (define-key crisp-mode-map [(meta ?0)]      (lambda () (interactive) (bookmark-set "0")))
 153 (define-key crisp-mode-map [(meta ?1)]      (lambda () (interactive) (bookmark-set "1")))
 154 (define-key crisp-mode-map [(meta ?2)]      (lambda () (interactive) (bookmark-set "2")))
 155 (define-key crisp-mode-map [(meta ?3)]      (lambda () (interactive) (bookmark-set "3")))
 156 (define-key crisp-mode-map [(meta ?4)]      (lambda () (interactive) (bookmark-set "4")))
 157 (define-key crisp-mode-map [(meta ?5)]      (lambda () (interactive) (bookmark-set "5")))
 158 (define-key crisp-mode-map [(meta ?6)]      (lambda () (interactive) (bookmark-set "6")))
 159 (define-key crisp-mode-map [(meta ?7)]      (lambda () (interactive) (bookmark-set "7")))
 160 (define-key crisp-mode-map [(meta ?8)]      (lambda () (interactive) (bookmark-set "8")))
 161 (define-key crisp-mode-map [(meta ?9)]      (lambda () (interactive) (bookmark-set "9")))
 162
 163 (define-key crisp-mode-map [(shift right)]  'fkey-forward-word)
 164 (define-key crisp-mode-map [(shift left)]   'fkey-backward-word)
 165 (define-key crisp-mode-map [(shift delete)] 'kill-word)
 166 (define-key crisp-mode-map [(shift backspace)] 'backward-kill-word)
 167 (define-key crisp-mode-map [(control left)] 'backward-word)
 168 (define-key crisp-mode-map [(control right)] 'forward-word)
 169
 170 (define-key crisp-mode-map [(home)] 'crisp-home)
 171 (define-key crisp-mode-map [(end)] 'crisp-end)
 172
 173 (defun crisp-home ()
 174   "\"Home\" point, the way CRiSP would do it.
 175 The first use moves point to beginning of the line.  Second
 176 consecutive use moves point to beginning of the screen.  Third
 177 consecutive use moves point to the beginning of the buffer."
 178   (interactive nil)
 179   (cond
 180     ((and (eq last-command 'crisp-home) (eq last-last-command 'crisp-home))
 181      (goto-char (point-min)))
 182     ((eq last-command 'crisp-home)
 183      (move-to-window-line 0))
 184     (t
 185      (beginning-of-line)))
 186   (setq last-last-command last-command))
 187
 188 (defun crisp-end ()
 189   "\"End\" point, the way CRiSP would do it.
 190 The first use moves point to end of the line.  Second
 191 consecutive use moves point to the end of the screen.  Third
 192 consecutive use moves point to the end of the buffer."
 193   (interactive nil)
 194   (cond
 195     ((and (eq last-command 'crisp-end) (eq last-last-command 'crisp-end))
 196      (goto-char (point-max)))
 197     ((eq last-command 'crisp-end)
 198      (move-to-window-line -1)
 199      (end-of-line))
 200     (t
 201      (end-of-line)))
 202   (setq last-last-command last-command))
 203
 204 ;; Now enable the mode
 205
 206 (defun crisp-mode ()
 207   "Toggle CRiSP emulation minor mode."
 208   (interactive nil)
 209   (setq crisp-mode-enabled (not crisp-mode-enabled))
 210   (cond
 211    ((eq crisp-mode-enabled 't)
 212     (use-global-map crisp-mode-map)
 213     (if crisp-load-scroll-lock
 214         (require 'scroll-lock))
 215     (if (featurep 'scroll-lock)
 216         (define-key crisp-mode-map [(meta f1)] 'scroll-lock-mode))
 217     (run-hooks 'crisp-load-hook))
 218    ((eq crisp-mode-enabled 'nil)
 219     (use-global-map crisp-mode-original-keymap))))
 220
 221 (provide 'crisp)
 222
 223 ;;; crisp.el ends here
 224
 225