1 ;;; crisp.el --- CRiSP/Brief Emacs emulator
3 ;; Copyright (C) 1997, 1998, 1999, 2005 Free Software Foundation, Inc.
5 ;; Author: Gary D. Foster <Gary.Foster@Corp.Sun.COM>
6 ;; Keywords: emulations brief crisp
8 ;; This file is part of GNU Emacs.
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)
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.
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.
27 ;; Keybindings and minor functions to duplicate the functionality and
28 ;; finger-feel of the CRiSP/Brief editor. This package is designed to
29 ;; facilitate transitioning from Brief to (XE|E)macs with a minimum
32 ;; Enable this package by putting (require 'crisp) in your .emacs and
33 ;; use M-x crisp-mode to toggle it on or off.
35 ;; This package will automatically load the scroll-all.el package if
36 ;; you put (setq crisp-load-scroll-all t) in your .emacs before
37 ;; loading this package. If this feature is enabled, it will bind
38 ;; meta-f1 to the scroll-all mode toggle. The scroll-all package
39 ;; duplicates the scroll-alling feature in CRiSP.
41 ;; Also, the default keybindings for brief/CRiSP override the M-x
42 ;; key to exit the editor. If you don't like this functionality, you
43 ;; can prevent this behavior (or redefine it dynamically) by setting
44 ;; the value of `crisp-override-meta-x' either in your .emacs or
45 ;; interactively. The default setting is t, which means that M-x will
46 ;; by default run `save-buffers-kill-emacs' instead of the command
47 ;; `execute-extended-command'.
49 ;; Finally, if you want to change the string displayed in the modeline
50 ;; when this mode is in effect, override the definition of
51 ;; `crisp-mode-modeline-string' in your .emacs. The default value is
52 ;; " *Crisp*" which may be a bit lengthy if you have a lot of things
53 ;; being displayed there.
55 ;; All these overrides should go *before* the (require 'crisp) statement.
62 "Emulator for CRiSP and Brief key bindings."
66 (defvar crisp-mode-map
(let ((map (make-sparse-keymap)))
68 "Local keymap for CRiSP emulation mode.
69 All the bindings are done here instead of globally to try and be
72 (defcustom crisp-mode-modeline-string
" *CRiSP*"
73 "*String to display in the modeline when CRiSP emulation mode is enabled."
78 (defcustom crisp-mode nil
79 "Track status of CRiSP emulation mode.
80 A value of nil means CRiSP mode is not enabled. A value of t
81 indicates CRiSP mode is enabled.
83 Setting this variable directly does not take effect;
84 use either M-x customize or the function `crisp-mode'."
85 :set
(lambda (symbol value
) (crisp-mode (if value
1 0)))
86 :initialize
'custom-initialize-default
92 (defcustom crisp-override-meta-x t
93 "*Controls overriding the normal Emacs M-x key binding in the CRiSP emulator.
94 Normally the CRiSP emulator rebinds M-x to `save-buffers-exit-emacs', and
95 provides the usual M-x functionality on the F10 key. If this variable
96 is non-nil, M-x will exit Emacs."
100 (defcustom crisp-load-scroll-all nil
101 "Controls loading of the Scroll Lock in the CRiSP emulator.
102 Its default behavior is to load and enable the Scroll Lock minor mode
103 package when enabling the CRiSP emulator.
105 If this variable is nil when you start the CRiSP emulator, it
106 does not load the scroll-all package."
110 (defcustom crisp-load-hook nil
111 "Hooks to run after loading the CRiSP emulator package."
115 (defcustom crisp-mode-hook nil
116 "Hook run by the function `crisp-mode'."
120 (defconst crisp-version
"1.34"
121 "The version of the CRiSP emulator.")
123 (defconst crisp-mode-help-address
"gfoster@suzieq.ml.org"
124 "The email address of the CRiSP mode author/maintainer.")
126 ;; Silence the byte-compiler.
127 (defvar crisp-last-last-command nil
128 "The previous value of `last-command'.")
130 ;; The cut and paste routines are different between XEmacs and Emacs
131 ;; so we need to set up aliases for the functions.
133 (defalias 'crisp-set-clipboard
134 (if (fboundp 'clipboard-kill-ring-save
)
135 'clipboard-kill-ring-save
136 'copy-primary-selection
))
138 (defalias 'crisp-kill-region
139 (if (fboundp 'clipboard-kill-region
)
140 'clipboard-kill-region
141 'kill-primary-selection
))
143 (defalias 'crisp-yank-clipboard
144 (if (fboundp 'clipboard-yank
)
146 'yank-clipboard-selection
))
148 (defun crisp-region-active ()
149 "Compatibility function to test for an active region."
150 (if (boundp 'zmacs-region-active-p
)
151 zmacs-region-active-p
154 ;; and now the keymap defines
156 (define-key crisp-mode-map
[(f1)] 'other-window
)
158 (define-key crisp-mode-map
[(f2) (down)] 'enlarge-window
)
159 (define-key crisp-mode-map
[(f2) (left)] 'shrink-window-horizontally
)
160 (define-key crisp-mode-map
[(f2) (right)] 'enlarge-window-horizontally
)
161 (define-key crisp-mode-map
[(f2) (up)] 'shrink-window
)
162 (define-key crisp-mode-map
[(f3) (down)] 'split-window-vertically
)
163 (define-key crisp-mode-map
[(f3) (right)] 'split-window-horizontally
)
165 (define-key crisp-mode-map
[(f4)] 'delete-window
)
166 (define-key crisp-mode-map
[(control f4
)] 'delete-other-windows
)
168 (define-key crisp-mode-map
[(f5)] 'search-forward-regexp
)
169 (define-key crisp-mode-map
[(f19)] 'search-forward-regexp
)
170 (define-key crisp-mode-map
[(meta f5
)] 'search-backward-regexp
)
172 (define-key crisp-mode-map
[(f6)] 'query-replace
)
174 (define-key crisp-mode-map
[(f7)] 'start-kbd-macro
)
175 (define-key crisp-mode-map
[(meta f7
)] 'end-kbd-macro
)
177 (define-key crisp-mode-map
[(f8)] 'call-last-kbd-macro
)
178 (define-key crisp-mode-map
[(meta f8
)] 'save-kbd-macro
)
180 (define-key crisp-mode-map
[(f9)] 'find-file
)
181 (define-key crisp-mode-map
[(meta f9
)] 'load-library
)
183 (define-key crisp-mode-map
[(f10)] 'execute-extended-command
)
184 (define-key crisp-mode-map
[(meta f10
)] 'compile
)
186 (define-key crisp-mode-map
[(SunF37)] 'kill-buffer
)
187 (define-key crisp-mode-map
[(kp-add)] 'crisp-copy-line
)
188 (define-key crisp-mode-map
[(kp-subtract)] 'crisp-kill-line
)
189 ;; just to cover all the bases (GNU Emacs, for instance)
190 (define-key crisp-mode-map
[(f24)] 'crisp-kill-line
)
191 (define-key crisp-mode-map
[(insert)] 'crisp-yank-clipboard
)
192 (define-key crisp-mode-map
[(f16)] 'crisp-set-clipboard
) ; copy on Sun5 kbd
193 (define-key crisp-mode-map
[(f20)] 'crisp-kill-region
) ; cut on Sun5 kbd
194 (define-key crisp-mode-map
[(f18)] 'crisp-yank-clipboard
) ; paste on Sun5 kbd
196 (define-key crisp-mode-map
[(control f
)] 'fill-paragraph-or-region
)
197 (define-key crisp-mode-map
[(meta d
)] (lambda ()
199 (beginning-of-line) (kill-line)))
200 (define-key crisp-mode-map
[(meta e
)] 'find-file
)
201 (define-key crisp-mode-map
[(meta g
)] 'goto-line
)
202 (define-key crisp-mode-map
[(meta h
)] 'help
)
203 (define-key crisp-mode-map
[(meta i
)] 'overwrite-mode
)
204 (define-key crisp-mode-map
[(meta j
)] 'bookmark-jump
)
205 (define-key crisp-mode-map
[(meta l
)] 'crisp-mark-line
)
206 (define-key crisp-mode-map
[(meta m
)] 'set-mark-command
)
207 (define-key crisp-mode-map
[(meta n
)] 'bury-buffer
)
208 (define-key crisp-mode-map
[(meta p
)] 'crisp-unbury-buffer
)
209 (define-key crisp-mode-map
[(meta u
)] 'advertised-undo
)
210 (define-key crisp-mode-map
[(f14)] 'advertised-undo
)
211 (define-key crisp-mode-map
[(meta w
)] 'save-buffer
)
212 (define-key crisp-mode-map
[(meta x
)] 'crisp-meta-x-wrapper
)
213 (define-key crisp-mode-map
[(meta ?
0)] (lambda ()
216 (define-key crisp-mode-map
[(meta ?
1)] (lambda ()
219 (define-key crisp-mode-map
[(meta ?
2)] (lambda ()
222 (define-key crisp-mode-map
[(meta ?
3)] (lambda ()
225 (define-key crisp-mode-map
[(meta ?
4)] (lambda ()
228 (define-key crisp-mode-map
[(meta ?
5)] (lambda ()
231 (define-key crisp-mode-map
[(meta ?
6)] (lambda ()
234 (define-key crisp-mode-map
[(meta ?
7)] (lambda ()
237 (define-key crisp-mode-map
[(meta ?
8)] (lambda ()
240 (define-key crisp-mode-map
[(meta ?
9)] (lambda ()
244 (define-key crisp-mode-map
[(shift delete
)] 'kill-word
)
245 (define-key crisp-mode-map
[(shift backspace
)] 'backward-kill-word
)
246 (define-key crisp-mode-map
[(control left
)] 'backward-word
)
247 (define-key crisp-mode-map
[(control right
)] 'forward-word
)
249 (define-key crisp-mode-map
[(home)] 'crisp-home
)
250 (define-key crisp-mode-map
[(control home
)] (lambda ()
252 (move-to-window-line 0)))
253 (define-key crisp-mode-map
[(meta home
)] 'beginning-of-line
)
254 (define-key crisp-mode-map
[(end)] 'crisp-end
)
255 (define-key crisp-mode-map
[(control end
)] (lambda ()
257 (move-to-window-line -
1)))
258 (define-key crisp-mode-map
[(meta end
)] 'end-of-line
)
260 (defun crisp-version (&optional arg
)
261 "Version number of the CRiSP emulator package.
262 If ARG, insert results at point."
264 (let ((foo (concat "CRiSP version " crisp-version
)))
266 (insert (message foo
))
269 (defun crisp-mark-line (arg)
270 "Set mark at the end of the line.
271 Arg works as in `end-of-line'."
276 (setq newmark
(point)))
277 (push-mark newmark nil t
)))
279 (defun crisp-kill-line (arg)
280 "Mark and kill line(s).
281 Marks from point to end of the current line (honoring prefix arguments),
282 copies the region to the kill ring and clipboard, and then deletes it."
284 (if (crisp-region-active)
285 (call-interactively 'crisp-kill-region
)
286 (crisp-mark-line arg
)
287 (call-interactively 'crisp-kill-region
)))
289 (defun crisp-copy-line (arg)
290 "Mark and copy line(s).
291 Marks from point to end of the current line (honoring prefix arguments),
292 copies the region to the kill ring and clipboard, and then deactivates
295 (if (crisp-region-active)
296 (call-interactively 'crisp-set-clipboard
)
297 (crisp-mark-line arg
)
298 (call-interactively 'crisp-set-clipboard
))
299 ;; clear the region after the operation is complete
300 ;; XEmacs does this automagically, Emacs doesn't.
301 (if (boundp 'mark-active
)
302 (setq mark-active nil
)))
305 "\"Home\" the point, the way CRiSP would do it.
306 The first use moves point to beginning of the line. Second
307 consecutive use moves point to beginning of the screen. Third
308 consecutive use moves point to the beginning of the buffer."
311 ((and (eq last-command
'crisp-home
)
312 (eq crisp-last-last-command
'crisp-home
))
313 (goto-char (point-min)))
314 ((eq last-command
'crisp-home
)
315 (move-to-window-line 0))
317 (beginning-of-line)))
318 (setq crisp-last-last-command last-command
))
321 "\"End\" the point, the way CRiSP would do it.
322 The first use moves point to end of the line. Second
323 consecutive use moves point to the end of the screen. Third
324 consecutive use moves point to the end of the buffer."
327 ((and (eq last-command
'crisp-end
)
328 (eq crisp-last-last-command
'crisp-end
))
329 (goto-char (point-max)))
330 ((eq last-command
'crisp-end
)
331 (move-to-window-line -
1)
335 (setq crisp-last-last-command last-command
))
337 (defun crisp-unbury-buffer ()
338 "Go back one buffer."
340 (switch-to-buffer (car (last (buffer-list)))))
342 (defun crisp-meta-x-wrapper ()
343 "Wrapper function to conditionally override the normal M-x bindings.
344 When `crisp-override-meta-x' is non-nil, M-x will exit Emacs (the
345 normal CRiSP binding) and when it is nil M-x will run
346 `execute-extended-command' (the normal Emacs binding)."
348 (if crisp-override-meta-x
349 (save-buffers-kill-emacs)
350 (call-interactively 'execute-extended-command
)))
353 (defun crisp-mode (&optional arg
)
354 "Toggle CRiSP/Brief emulation minor mode.
355 With ARG, turn CRiSP mode on if ARG is positive, off otherwise."
357 (setq crisp-mode
(if (null arg
)
359 (> (prefix-numeric-value arg
) 0)))
361 ;; Force transient-mark-mode, so that the marking routines work as
362 ;; expected. If the user turns off transient mark mode, most
363 ;; things will still work fine except the crisp-(copy|kill)
364 ;; functions won't work quite as nicely when regions are marked
365 ;; differently and could really confuse people. Caveat emptor.
366 (if (fboundp 'transient-mark-mode
)
367 (transient-mark-mode t
))
368 (if crisp-load-scroll-all
369 (require 'scroll-all
))
370 (if (featurep 'scroll-all
)
371 (define-key crisp-mode-map
[(meta f1
)] 'scroll-all-mode
))
372 (run-hooks 'crisp-mode-hook
)))
374 ;; People might use Apropos on `brief'.
376 (defalias 'brief-mode
'crisp-mode
)
378 (if (fboundp 'add-minor-mode
)
379 (add-minor-mode 'crisp-mode
'crisp-mode-modeline-string
380 crisp-mode-map nil
'crisp-mode
)
381 (or (assq 'crisp-mode minor-mode-alist
)
382 (setq minor-mode-alist
383 (cons '(crisp-mode crisp-mode-modeline-string
) minor-mode-alist
)))
384 (or (assq 'crisp-mode minor-mode-map-alist
)
385 (setq minor-mode-map-alist
(cons (cons 'crisp-mode crisp-mode-map
)
386 minor-mode-map-alist
))))
388 ;; Interaction with other packages.
389 (put 'crisp-home
'CUA
'move
)
390 (put 'crisp-end
'CUA
'move
)
392 (run-hooks 'crisp-load-hook
)
395 ;;; arch-tag: e5369375-fafb-4240-b7ae-4cb460ef05ee
396 ;;; crisp.el ends here