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1 ;; @(#) crisp.el -- CRiSP/Brief Emacs emulator
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3 ;; Author: Gary D. Foster <Gary.Foster@corp.sun.com>
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4 ;; 1.19
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5 ;; Keywords: emulations brief crisp
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6
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7 ;; This file is part of XEmacs.
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8
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9 ;; XEmacs is free software; you can redistribute it and/or modify it
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10 ;; under the terms of the GNU General Public License as published by
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11 ;; the Free Software Foundation; either version 2, or (at your option)
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12 ;; any later version.
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13
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14 ;; XEmacs is distributed in the hope that it will be useful, but
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15 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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17 ;; General Public License for more details.
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18
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19 ;; You should have received a copy of the GNU General Public License
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20 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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21 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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22 ;; 02111-1307, USA.
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23
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24 ;; CRiSP is a registered trademark of Foxtrot Systems Ltd.
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25
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26 ;;; Commentary:
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27
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28 ;; Keybindings and minor functions to duplicate the functionality and
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29 ;; finger-feel of the CRiSP/Brief editor. This package is designed to
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30 ;; facilitate transitioning from Brief to (XE|E)macs with a minimum
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31 ;; amount of hassles.
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32
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33 ;; Enable this package by putting (require 'crisp) in your .emacs and
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34 ;; use M-x crisp-mode to toggle it on or off.
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35
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36 ;; This package will automatically load the scroll-lock.el package if
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37 ;; you put (setq crisp-load-scroll-lock t) in your .emacs before
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38 ;; loading this package. If this feature is enabled, it will bind
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39 ;; meta-f1 to the scroll-lock mode toggle. The scroll-lock package
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40 ;; duplicates the scroll-locking feature in CRiSP.
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41
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42 ;; Also, the default keybindings for brief/CRiSP override the M-x
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43 ;; key to exit the editor. If you don't like this functionality, you
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44 ;; can prevent this behavior (or redefine it dynamically) by setting
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45 ;; the value of `crisp-override-meta-x' either in your .emacs or
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46 ;; interactively. The default setting is nil, which means that M-x will
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47 ;; by default run `execute-extended-command' instead of the command
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48 ;; `save-buffers-kill-emacs'.
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49
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50 ;; Finally, if you want to change the string displayed in the modeline
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51 ;; when this mode is in effect, override the definition of
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52 ;; `crisp-mode-modeline-string' in your .emacs. The default value is
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53 ;; " *Crisp*" which may be a bit lengthy if you have a lot of things
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54 ;; being displayed there.
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55
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56 ;; All these overrides should go *before* the (require 'crisp) statement.
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57
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58 ;; local variables
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59
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60 (defgroup emulations-crisp nil
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61 "CRiSP emulator customizable settings."
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62 :group 'emulations)
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63
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64 (defvar crisp-mode-map (copy-keymap (current-global-map))
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65 "Local keymap for CRiSP emulation mode.
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66 All the bindings are done here instead of globally to try and be
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67 nice to the world.")
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68
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69 (defcustom crisp-mode-modeline-string " *CRiSP*"
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70 "*String to display in the modeline when CRiSP emulation mode is enabled."
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71 :type 'string
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72 :group 'emulations-crisp)
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73
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74 (defvar crisp-mode-original-keymap (copy-keymap (current-global-map))
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75 "The original keymap before CRiSP emulation mode remaps anything.
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76 This keymap is restored when CRiSP emulation mode is disabled.")
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77
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78 (defvar crisp-mode-enabled nil
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124
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79 "Track status of CRiSP emulation mode.
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80 A value of nil means CRiSP mode is not enabled. A value of t
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81 indicates CRiSP mode is enabled.")
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82
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83 (defcustom crisp-override-meta-x t
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84 "*Controls overriding the normal Emacs M-x key binding in the CRiSP emulator.
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85 Normally the CRiSP emulator rebinds M-x to save-buffers-exit-emacs and
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86 provides the usual M-x functionality on the F10 key. If this variable
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87 is non-nil, M-x will exit Emacs."
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88 :type 'boolean
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89 :group 'emulations-crisp)
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90
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91 (defvar crisp-load-scroll-lock nil
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92 "Controls loading of the Scroll Lock in the CRiSP emulator.
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93 Its Default behavior is to load and enable the Scroll Lock minor mode
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94 package when enabling the CRiSP emulator.
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95
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96 If this variable is nil when you start the CRiSP emulator, it
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97 does not load the scroll-lock package.")
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98
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99 (defvar crisp-load-hook nil
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100 "Hooks to run after loading the CRiSP emulator package.")
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101
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102 (defconst crisp-version "crisp.el release 1.1/1.19"
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103 "The release number and RCS version for the CRiSP emulator.")
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104
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105 (if (string-match "XEmacs\\Lucid" emacs-version)
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106 (add-minor-mode 'crisp-mode-enabled crisp-mode-modeline-string)
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107 (or (assq 'crisp-mode-enabled minor-mode-alist)
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108 (setq minor-mode-alist
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109 (cons '(crisp-mode-enabled crisp-mode-modeline-string) minor-mode-alist))))
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110
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111 ;; and now the keymap defines
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112
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113 (define-key crisp-mode-map [(f1)] 'other-window)
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114
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115 (define-key crisp-mode-map [(f2) (down)] 'enlarge-window)
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116 (define-key crisp-mode-map [(f2) (left)] 'shrink-window-horizontally)
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117 (define-key crisp-mode-map [(f2) (right)] 'enlarge-window-horizontally)
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118 (define-key crisp-mode-map [(f2) (up)] 'shrink-window)
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119 (define-key crisp-mode-map [(f3) (down)] 'split-window-vertically)
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120 (define-key crisp-mode-map [(f3) (right)] 'split-window-horizontally)
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121
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122 (define-key crisp-mode-map [(f4)] 'delete-window)
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123 (define-key crisp-mode-map [(control f4)] 'delete-other-windows)
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124
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125 (define-key crisp-mode-map [(f5)] 'search-forward-regexp)
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126 (define-key crisp-mode-map [(f19)] 'search-forward-regexp)
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127 (define-key crisp-mode-map [(meta f5)] 'search-backward-regexp)
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128
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129 (define-key crisp-mode-map [(f6)] 'query-replace)
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130
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131 (define-key crisp-mode-map [(f7)] 'start-kbd-macro)
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132 (define-key crisp-mode-map [(meta f7)] 'end-kbd-macro)
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133
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134 (define-key crisp-mode-map [(f8)] 'call-last-kbd-macro)
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135 (define-key crisp-mode-map [(meta f8)] 'save-kbd-macro)
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136
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137 (define-key crisp-mode-map [(f9)] 'find-file)
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138 (define-key crisp-mode-map [(meta f9)] 'load-library)
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139
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140 (define-key crisp-mode-map [(f10)] 'execute-extended-command)
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141 (define-key crisp-mode-map [(meta f10)] 'compile)
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142
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143 (define-key crisp-mode-map [(SunF37)] 'kill-buffer)
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144 (define-key crisp-mode-map [(kp-add)] 'x-copy-primary-selection)
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145 (define-key crisp-mode-map [(kp-subtract)] 'x-kill-primary-selection)
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146 (define-key crisp-mode-map [(insert)] 'x-yank-clipboard-selection)
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147 (define-key crisp-mode-map [(f16)] 'x-copy-primary-selection) ; copy on Sun5 kbd
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148 (define-key crisp-mode-map [(f20)] 'x-kill-primary-selection) ; cut on Sun5 kbd
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149 (define-key crisp-mode-map [(f18)] 'x-yank-clipboard-selection) ; paste on Sun5 kbd
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150
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151 (define-key crisp-mode-map [(meta d)] (lambda () (interactive) (beginning-of-line) (kill-line)))
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152 (define-key crisp-mode-map [(meta e)] 'find-file)
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153 (define-key crisp-mode-map [(meta g)] 'goto-line)
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154 (define-key crisp-mode-map [(meta h)] 'help)
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155 (define-key crisp-mode-map [(meta i)] 'overwrite-mode)
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156 (define-key crisp-mode-map [(meta j)] 'bookmark-jump)
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157 (define-key crisp-mode-map [(meta u)] 'advertised-undo)
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158 (define-key crisp-mode-map [(f14)] 'advertised-undo)
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159 (define-key crisp-mode-map [(meta w)] 'save-buffer)
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160 (define-key crisp-mode-map [(meta x)] 'crisp-meta-x-wrapper)
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161 (define-key crisp-mode-map [(meta ?0)] (lambda () (interactive) (bookmark-set "0")))
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162 (define-key crisp-mode-map [(meta ?1)] (lambda () (interactive) (bookmark-set "1")))
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163 (define-key crisp-mode-map [(meta ?2)] (lambda () (interactive) (bookmark-set "2")))
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164 (define-key crisp-mode-map [(meta ?3)] (lambda () (interactive) (bookmark-set "3")))
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165 (define-key crisp-mode-map [(meta ?4)] (lambda () (interactive) (bookmark-set "4")))
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166 (define-key crisp-mode-map [(meta ?5)] (lambda () (interactive) (bookmark-set "5")))
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167 (define-key crisp-mode-map [(meta ?6)] (lambda () (interactive) (bookmark-set "6")))
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168 (define-key crisp-mode-map [(meta ?7)] (lambda () (interactive) (bookmark-set "7")))
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169 (define-key crisp-mode-map [(meta ?8)] (lambda () (interactive) (bookmark-set "8")))
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170 (define-key crisp-mode-map [(meta ?9)] (lambda () (interactive) (bookmark-set "9")))
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171
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172 (define-key crisp-mode-map [(shift right)] 'fkey-forward-word)
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173 (define-key crisp-mode-map [(shift left)] 'fkey-backward-word)
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174 (define-key crisp-mode-map [(shift delete)] 'kill-word)
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175 (define-key crisp-mode-map [(shift backspace)] 'backward-kill-word)
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176 (define-key crisp-mode-map [(control left)] 'backward-word)
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177 (define-key crisp-mode-map [(control right)] 'forward-word)
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178
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179 (define-key crisp-mode-map [(home)] 'crisp-home)
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180 (define-key crisp-mode-map [(end)] 'crisp-end)
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181
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182 (defun crisp-home ()
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183 "\"Home\" the point, the way CRiSP would do it.
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184 The first use moves point to beginning of the line. Second
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185 consecutive use moves point to beginning of the screen. Third
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186 consecutive use moves point to the beginning of the buffer."
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187 (interactive nil)
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188 (cond
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189 ((and (eq last-command 'crisp-home) (eq last-last-command 'crisp-home))
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190 (goto-char (point-min)))
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191 ((eq last-command 'crisp-home)
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192 (move-to-window-line 0))
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193 (t
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194 (beginning-of-line)))
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195 (setq last-last-command last-command))
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196
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197 (defun crisp-end ()
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198 "\"End\" the point, the way CRiSP would do it.
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199 The first use moves point to end of the line. Second
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200 consecutive use moves point to the end of the screen. Third
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201 consecutive use moves point to the end of the buffer."
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202 (interactive nil)
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203 (cond
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204 ((and (eq last-command 'crisp-end) (eq last-last-command 'crisp-end))
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205 (goto-char (point-max)))
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206 ((eq last-command 'crisp-end)
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207 (move-to-window-line -1)
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208 (end-of-line))
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209 (t
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210 (end-of-line)))
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211 (setq last-last-command last-command))
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212
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213 (defun crisp-meta-x-wrapper ()
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214 "Wrapper function to conditionally override the normal M-x bindings.
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215 When `crisp-override-meta-x' is non-nil, M-x will exit Emacs (the
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216 normal CRiSP binding) and when it is nil M-x will run
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217 `execute-extended-command' (the normal Emacs binding)."
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218 (interactive)
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219 (if crisp-override-meta-x
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220 (save-buffers-kill-emacs)
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221 (call-interactively 'execute-extended-command)))
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222
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223 ;; Now enable the mode
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224
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225 (defun crisp-mode ()
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226 "Toggle CRiSP emulation minor mode."
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227 (interactive nil)
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228 (setq crisp-mode-enabled (not crisp-mode-enabled))
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229 (cond
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230 ((eq crisp-mode-enabled 't)
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231 (use-global-map crisp-mode-map)
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232 (if crisp-load-scroll-lock
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233 (require 'scroll-lock))
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234 (if (featurep 'scroll-lock)
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235 (define-key crisp-mode-map [(meta f1)] 'scroll-lock-mode))
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236 (run-hooks 'crisp-load-hook))
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237 ((eq crisp-mode-enabled 'nil)
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238 (use-global-map crisp-mode-original-keymap))))
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239
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240 (provide 'crisp)
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241
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242 ;;; crisp.el ends here
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