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1.1 root 1: ;; Copyright (C) 1986 Free Software Foundation, Inc.
2: ;; It started from public domain code by Mike Clarkson
3: ;; but has been greatly altered.
4:
5: ;; This file is part of GNU Emacs.
6:
7: ;; GNU Emacs is free software; you can redistribute it and/or modify
8: ;; it under the terms of the GNU General Public License as published by
9: ;; the Free Software Foundation; either version 1, or (at your option)
10: ;; any later version.
11:
12: ;; GNU Emacs is distributed in the hope that it will be useful,
13: ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
14: ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15: ;; GNU General Public License for more details.
16:
17: ;; You should have received a copy of the GNU General Public License
18: ;; along with GNU Emacs; see the file COPYING. If not, write to
19: ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
20:
21: (require 'keypad)
22:
23: (defvar edt-last-deleted-lines ""
24: "Last text deleted by an EDT emulation line-delete command.")
25: (defvar edt-last-deleted-words ""
26: "Last text deleted by an EDT emulation word-delete command.")
27: (defvar edt-last-deleted-chars ""
28: "Last text deleted by an EDT emulation character-delete command.")
29:
30: (defun delete-current-line (num)
31: "Delete one or specified number of lines after point.
32: This includes the newline character at the end of each line.
33: They are saved for the EDT undelete-lines command."
34: (interactive "p")
35: (let ((beg (point)))
36: (forward-line num)
37: (if (not (eq (preceding-char) ?\n))
38: (insert "\n"))
39: (setq edt-last-deleted-lines
40: (buffer-substring beg (point)))
41: (delete-region beg (point))))
42:
43: (defun delete-to-eol (num)
44: "Delete text up to end of line.
45: With argument, delete up to to Nth line-end past point.
46: They are saved for the EDT undelete-lines command."
47: (interactive "p")
48: (let ((beg (point)))
49: (forward-char 1)
50: (end-of-line num)
51: (setq edt-last-deleted-lines
52: (buffer-substring beg (point)))
53: (delete-region beg (point))))
54:
55: (defun delete-current-word (num)
56: "Delete one or specified number of words after point.
57: They are saved for the EDT undelete-words command."
58: (interactive "p")
59: (let ((beg (point)))
60: (forward-word num)
61: (setq edt-last-deleted-words
62: (buffer-substring beg (point)))
63: (delete-region beg (point))))
64:
65: (defun delete-previous-word (num)
66: "Delete one or specified number of words before point.
67: They are saved for the EDT undelete-words command."
68: (interactive "p")
69: (let ((beg (point)))
70: (forward-word (- num))
71: (setq edt-last-deleted-words
72: (buffer-substring (point) beg))
73: (delete-region beg (point))))
74:
75: (defun delete-current-char (num)
76: "Delete one or specified number of characters after point.
77: They are saved for the EDT undelete-chars command."
78: (interactive "p")
79: (setq edt-last-deleted-chars
80: (buffer-substring (point) (min (point-max) (+ (point) num))))
81: (delete-region (point) (min (point-max) (+ (point) num))))
82:
83: (defun delete-previous-char (num)
84: "Delete one or specified number of characters before point.
85: They are saved for the EDT undelete-chars command."
86: (interactive "p")
87: (setq edt-last-deleted-chars
88: (buffer-substring (max (point-min) (- (point) num)) (point)))
89: (delete-region (max (point-min) (- (point) num)) (point)))
90:
91: (defun undelete-lines ()
92: "Yank lines deleted by last EDT line-deletion command."
93: (interactive)
94: (insert edt-last-deleted-lines))
95:
96: (defun undelete-words ()
97: "Yank words deleted by last EDT word-deletion command."
98: (interactive)
99: (insert edt-last-deleted-words))
100:
101: (defun undelete-chars ()
102: "Yank characters deleted by last EDT character-deletion command."
103: (interactive)
104: (insert edt-last-deleted-chars))
105:
106: (defun next-end-of-line (num)
107: "Move to end of line; if at end, move to end of next line.
108: Accepts a prefix argument for the number of lines to move."
109: (interactive "p")
110: (forward-char)
111: (end-of-line num))
112:
113: (defun previous-end-of-line (num)
114: "Move EOL upward.
115: Accepts a prefix argument for the number of lines to move."
116: (interactive "p")
117: (end-of-line (- 1 num)))
118:
119: (defun forward-to-word (num)
120: "Move to next word-beginning, or to Nth following word-beginning."
121: (interactive "p")
122: (forward-word (1+ num))
123: (forward-word -1))
124:
125: (defun backward-to-word (num)
126: "Move back to word-end, or to Nth word-end seen."
127: (interactive "p")
128: (forward-word (- (1+ num)))
129: (forward-word 1))
130:
131: (defun backward-line (num)
132: "Move point to start of previous line.
133: Prefix argument serves as repeat-count."
134: (interactive "p")
135: (forward-line (- num)))
136:
137: (defun scroll-window-down (num)
138: "Scroll the display down a window-full.
139: Accepts a prefix argument for the number of window-fulls to scroll."
140: (interactive "p")
141: (scroll-down (- (* (window-height) num) 2)))
142:
143: (defun scroll-window-up (num)
144: "Scroll the display up a window-full.
145: Accepts a prefix argument for the number of window-fulls to scroll."
146: (interactive "p")
147: (scroll-up (- (* (window-height) num) 2)))
148:
149: (defun next-paragraph (num)
150: "Move to beginning of the next indented paragraph.
151: Accepts a prefix argument for the number of paragraphs."
152: (interactive "p")
153: (while (> num 0)
154: (next-line 1)
155: (forward-paragraph)
156: (previous-line 1)
157: (if (eolp) (next-line 1))
158: (setq num (1- num))))
159:
160: (defun previous-paragraph (num)
161: "Move to beginning of previous indented paragraph.
162: Accepts a prefix argument for the number of paragraphs."
163: (interactive "p")
164: (while (> num 0)
165: (backward-paragraph)
166: (previous-line 1)
167: (if (eolp) (next-line 1))
168: (setq num (1- num))))
169:
170: (defun move-to-beginning ()
171: "Move cursor to the beginning of buffer, but don't set the mark."
172: (interactive)
173: (goto-char (point-min)))
174:
175: (defun move-to-end ()
176: "Move cursor to the end of buffer, but don't set the mark."
177: (interactive)
178: (goto-char (point-max)))
179:
180: (defun goto-percent (perc)
181: "Move point to ARG percentage of the buffer."
182: (interactive "NGoto-percentage: ")
183: (if (or (> perc 100) (< perc 0))
184: (error "Percentage %d out of range 0 < percent < 100" perc)
185: (goto-char (/ (* (point-max) perc) 100))))
186:
187: (defun update-mode-line ()
188: "Make sure mode-line in the current buffer reflects all changes."
189: (set-buffer-modified-p (buffer-modified-p))
190: (sit-for 0))
191:
192: (defun advance-direction ()
193: "Set EDT Advance mode so keypad commands move forward."
194: (interactive)
195: (setq edt-direction-string " ADVANCE")
196: (define-key function-keymap "\C-c" 'isearch-forward) ; PF3
197: (define-key function-keymap "8" 'scroll-window-up) ; "8"
198: (define-key function-keymap "7" 'next-paragraph) ; "7"
199: (define-key function-keymap "1" 'forward-to-word) ; "1"
200: (define-key function-keymap "2" 'next-end-of-line) ; "2"
201: (define-key function-keymap "3" 'forward-char) ; "3"
202: (define-key function-keymap "0" 'forward-line) ; "0"
203: (update-mode-line))
204:
205: (defun backup-direction ()
206: "Set EDT Backup mode so keypad commands move backward."
207: (interactive)
208: (setq edt-direction-string " BACKUP")
209: (define-key function-keymap "\C-c" 'isearch-backward) ; PF3
210: (define-key function-keymap "8" 'scroll-window-down) ; "8"
211: (define-key function-keymap "7" 'previous-paragraph) ; "7"
212: (define-key function-keymap "1" 'backward-to-word) ; "1"
213: (define-key function-keymap "2" 'previous-end-of-line) ; "2"
214: (define-key function-keymap "3" 'backward-char) ; "3"
215: (define-key function-keymap "0" 'backward-line) ; "0"
216: (update-mode-line))
217:
218: (defun beginning-of-window ()
219: "Home cursor to top of window."
220: (interactive)
221: (move-to-window-line 0))
222:
223: (defun line-to-bottom-of-window ()
224: "Move the current line to the top of the window."
225: (interactive)
226: (recenter -1))
227:
228: (defun line-to-top-of-window ()
229: "Move the current line to the top of the window."
230: (interactive)
231: (recenter 0))
232:
233: (defun case-flip-character (num)
234: "Change the case of the character under the cursor.
235: Accepts a prefix argument of the number of characters to invert."
236: (interactive "p")
237: (while (> num 0)
238: (funcall (if (<= ?a (following-char))
239: 'upcase-region 'downcase-region)
240: (point) (1+ (point)))
241: (forward-char 1)
242: (setq num (1- num))))
243:
244: (defun indent-or-fill-region ()
245: "Fill region in text modes, indent region in programming language modes."
246: (interactive)
247: (if (string= paragraph-start "^$\\|^ ")
248: (indent-region (point) (mark) nil)
249: (fill-region (point) (mark))))
250:
251: (defun mark-section-wisely ()
252: "Mark the section in a manner consistent with the major-mode.
253: Uses mark-defun for emacs-lisp, lisp,
254: mark-c-function for C,
255: and mark-paragraph for other modes."
256: (interactive)
257: (cond ((eq major-mode 'emacs-lisp-mode)
258: (mark-defun))
259: ((eq major-mode 'lisp-mode)
260: (mark-defun))
261: ((eq major-mode 'c-mode)
262: (mark-c-function))
263: (t (mark-paragraph))))
264:
265: ;;; Key Bindings
266: (defun edt-emulation-on ()
267: "Begin emulating DEC's EDT editor.
268: Certain keys are rebound; including nearly all keypad keys.
269: Use \\[edt-emulation-off] to undo all rebindings except the keypad keys.
270: Note that this function does not work if called directly from the .emacs file.
271: Instead, the .emacs file should do (setq term-setup-hook 'edt-emulation-on)
272: Then this function will be called at the time when it will work."
273: (interactive)
274: (advance-direction)
275: (edt-bind-gold-keypad) ;Must do this *after* $TERM.el is loaded
276: (setq edt-mode-old-c-\\ (lookup-key global-map "\C-\\"))
277: (global-set-key "\C-\\" 'quoted-insert)
278: (setq edt-mode-old-delete (lookup-key global-map "\177"))
279: (global-set-key "\177" 'delete-previous-char) ;"Delete"
280: (setq edt-mode-old-lisp-delete (lookup-key emacs-lisp-mode-map "\177"))
281: (define-key emacs-lisp-mode-map "\177" 'delete-previous-char) ;"Delete"
282: (define-key lisp-mode-map "\177" 'delete-previous-char) ;"Delete"
283: (setq edt-mode-old-linefeed (lookup-key global-map "\C-j"))
284: (global-set-key "\C-j" 'delete-previous-word) ;"LineFeed"
285: (define-key esc-map "?" 'apropos)) ;"<ESC>?"
286:
287: (defun edt-emulation-off ()
288: "Return from EDT emulation to normal Emacs key bindings.
289: The keys redefined by \\[edt-emulation-on] are given their old definitions."
290: (interactive)
291: (setq edt-direction-string nil)
292: (global-set-key "\C-\\" edt-mode-old-c-\\)
293: (global-set-key "\177" edt-mode-old-delete) ;"Delete"
294: (define-key emacs-lisp-mode-map "\177" edt-mode-old-lisp-delete) ;"Delete"
295: (define-key lisp-mode-map "\177" edt-mode-old-lisp-delete) ;"Delete"
296: (global-set-key "\C-j" edt-mode-old-linefeed)) ;"LineFeed"
297:
298: (define-key function-keymap "u" 'previous-line) ;Up arrow
299: (define-key function-keymap "d" 'next-line) ;down arrow
300: (define-key function-keymap "l" 'backward-char) ;right arrow
301: (define-key function-keymap "r" 'forward-char) ;left arrow
302: (define-key function-keymap "h" 'beginning-of-window) ;home
303: (define-key function-keymap "\C-b" 'describe-key) ;PF2
304: (define-key function-keymap "\C-d" 'delete-current-line);PF4
305: (define-key function-keymap "9" 'append-to-buffer) ;9 keypad key, etc.
306: (define-key function-keymap "-" 'delete-current-word)
307: (define-key function-keymap "4" 'advance-direction)
308: (define-key function-keymap "5" 'backup-direction)
309: (define-key function-keymap "6" 'kill-region)
310: (define-key function-keymap "," 'delete-current-char)
311: (define-key function-keymap "." 'set-mark-command)
312: (define-key function-keymap "e" 'other-window) ;enter key
313: (define-key function-keymap "\C-a" 'GOLD-prefix) ;PF1 ("gold")
314:
315: (setq GOLD-map (make-keymap))
316: (fset 'GOLD-prefix GOLD-map)
317:
318: (defvar GOLD-map nil
319: "GOLD-map maps the function keys on the VT100 keyboard preceeded
320: by the PF1 key. GOLD is the ASCII the 7-bit escape sequence <ESC>OP.")
321:
322: (defun define-keypad-key (keymap function-keymap-slot definition)
323: (let ((function-key-sequence (function-key-sequence function-keymap-slot)))
324: (if function-key-sequence
325: (define-key keymap function-key-sequence definition))))
326:
327: ;;Bind GOLD/Keyboard keys
328:
329: (define-key GOLD-map "\C-g" 'keyboard-quit) ; just for safety
330: (define-key GOLD-map "\177" 'delete-window) ;"Delete"
331: (define-key GOLD-map "\C-h" 'delete-other-windows) ;"BackSpace"
332: (define-key GOLD-map "\C-m" 'newline-and-indent) ;"Return"
333: (define-key GOLD-map " " 'undo) ;"Spacebar"
334: (define-key GOLD-map "%" 'goto-percent) ; "%"
335: (define-key GOLD-map "=" 'goto-line) ; "="
336: (define-key GOLD-map "`" 'what-line) ; "`"
337: (define-key GOLD-map "\C-\\" 'split-window-vertically) ; "Control-\"
338:
339: ; GOLD letter combinations:
340: (define-key GOLD-map "b" 'buffer-menu) ; "b"
341: (define-key GOLD-map "B" 'buffer-menu) ; "B"
342: (define-key GOLD-map "d" 'delete-window) ; "d"
343: (define-key GOLD-map "D" 'delete-window) ; "D"
344: (define-key GOLD-map "e" 'compile) ; "e"
345: (define-key GOLD-map "E" 'compile) ; "E"
346: (define-key GOLD-map "i" 'insert-file) ; "i"
347: (define-key GOLD-map "I" 'insert-file) ; "I"
348: (define-key GOLD-map "l" 'goto-line) ; "l"
349: (define-key GOLD-map "L" 'goto-line) ; "L"
350: (define-key GOLD-map "m" 'save-some-buffers) ; "m"
351: (define-key GOLD-map "M" 'save-some-buffers) ; "m"
352: (define-key GOLD-map "n" 'next-error) ; "n"
353: (define-key GOLD-map "N" 'next-error) ; "N"
354: (define-key GOLD-map "o" 'switch-to-buffer-other-window) ; "o"
355: (define-key GOLD-map "O" 'switch-to-buffer-other-window) ; "O"
356: (define-key GOLD-map "r" 'revert-file) ; "r"
357: (define-key GOLD-map "r" 'revert-file) ; "R"
358: (define-key GOLD-map "s" 'save-buffer) ; "s"
359: (define-key GOLD-map "S" 'save-buffer) ; "S"
360: (define-key GOLD-map "v" 'find-file-other-window) ; "v"
361: (define-key GOLD-map "V" 'find-file-other-window) ; "V"
362: (define-key GOLD-map "w" 'write-file) ; "w"
363: (define-key GOLD-map "w" 'write-file) ; "W"
364: ;(define-key GOLD-map "z" 'shrink-window) ; "z"
365: ;(define-key GOLD-map "Z" 'shrink-window) ; "z"
366:
367: ;Bind GOLD/Keypad keys
368: (defun edt-bind-gold-keypad ()
369: (define-keypad-key GOLD-map ?u 'line-to-top-of-window) ;"up-arrow"
370: (define-keypad-key GOLD-map ?d 'line-to-bottom-of-window) ;"down-arrow"
371: (define-keypad-key GOLD-map ?l 'backward-sentence) ;"left-arrow"
372: (define-keypad-key GOLD-map ?r 'forward-sentence) ;"right-arrow"
373: (define-keypad-key GOLD-map ?\C-a 'mark-section-wisely) ;Gold "PF1"
374: (define-keypad-key GOLD-map ?\C-b 'describe-function) ;Help "PF2"
375: (define-keypad-key GOLD-map ?\C-c 'occur) ;Find "PF3"
376: (define-keypad-key GOLD-map ?\C-d 'undelete-lines) ;Und Line "PF4"
377: (define-keypad-key GOLD-map ?0 'open-line) ;Open L "0"
378: (define-keypad-key GOLD-map ?1 'case-flip-character) ;Chgcase "1"
379: (define-keypad-key GOLD-map ?2 'delete-to-eol) ;Del EOL "2"
380: (define-keypad-key GOLD-map ?3 'copy-region-as-kill) ;Copy "3"
381: (define-keypad-key GOLD-map ?4 'move-to-end) ;Bottom "4"
382: (define-keypad-key GOLD-map ?5 'move-to-beginning) ;Top "5"
383: (define-keypad-key GOLD-map ?6 'yank) ;Paste "6"
384: (define-keypad-key GOLD-map ?7 'execute-extended-command) ;Command "7"
385: (define-keypad-key GOLD-map ?8 'indent-or-fill-region) ;Fill "8"
386: (define-keypad-key GOLD-map ?9 'replace-regexp) ;Replace "9"
387: (define-keypad-key GOLD-map ?- 'undelete-words) ;UND word "-"
388: (define-keypad-key GOLD-map ?, 'undelete-chars) ;UND Char ","
389: (define-keypad-key GOLD-map ?. 'redraw-display) ;Reset Window "."
390: (define-keypad-key GOLD-map ?e 'shell-command)) ;"ENTER"
391:
392: ;; Make direction of motion show in mode line
393: ;; while EDT emulation is turned on.
394: ;; Note that the keypad is always turned on when in Emacs.
395:
396: (or (assq 'edt-direction-string minor-mode-alist)
397: (setq minor-mode-alist (cons '(edt-direction-string edt-direction-string)
398: minor-mode-alist)))
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