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Diffstat (limited to 'lisp/emulation/edt.el')
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diff --git a/lisp/emulation/edt.el b/lisp/emulation/edt.el deleted file mode 100644 index b6bc4071f8b..00000000000 --- a/lisp/emulation/edt.el +++ /dev/null @@ -1,485 +0,0 @@ -;;; edt.el --- EDT emulation in Emacs - -;; Copyright (C) 1986 Free Software Foundation, Inc. - -;; Author: Mike Clarkson <mike@yetti.UUCP> -;; Maintainer: FSF -;; Created: 27 Aug 1986 -;; Keywords: emulations - -;; This started from public domain code by Mike Clarkson -;; but has been greatly altered. - -;; 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, 675 Mass Ave, Cambridge, MA 02139, USA. - -;;; Commentary: - -;; Here's my EDT emulation for GNU Emacs that is based on the EDT emulation -;; for Gosling's Emacs sent out on the net a couple of years ago by Lynn Olson -;; at Tektronics. This emulation was widely distributed as the file edt.ml -;; in the maclib directory of most Emacs distributions. -;; -;; I will gladly take all criticisms and complaints to heart, and will fix what -;; bugs I can find. As this is my first Emacs Lisp hack, you may have to root -;; out a few nasties hidden in the code. Please let me know if you find any -;; (sorry, no rewards :-). I would also be interested if there are better, -;; cleaner, faster ways of doing some of the things that I have done. -;; -;; You must understand some design considerations that I had in mind. -;; The intention was not really to "emulate" EDT, but rather to take advantage -;; of the years of EDT experience that had accumulated in my right hand, -;; while at the same time taking advantage of EMACS. -;; -;; Some major differences are: -;; -;; HELP is describe-key; -;; GOLD/HELP is describe-function; -;; FIND is isearch-forward/backward; -;; GOLD/HELP is occur-menu, which finds all instances of a search string; -;; ENTER is other-window; -;; SUBS is subprocess-command. Note that you have to change this -;; to `shell' if you are running Un*x; -;; PAGE is next-paragraph, because that's more useful than page. -;; SPECINS is copy-to-killring; -;; GOLD/GOLD is mark-section-wisely, which is my command to mark the -;; section in a manner consistent with the major-mode. It -;; uses mark-defun for emacs-lisp, lisp, mark-c-function for C, -;; and mark-paragraph for other modes. -;; -;; -;; Some subtle differences are: -;; -;; APPEND is append-to-buffer. One doesn't append to the kill ring -;; much and SPECINS is now copy-to-killring; -;; REPLACE is replace-regexp; -;; FILL is fill-region-wisely, which uses indent-region for C, lisp -;; emacs-lisp, and fill-region for others. It asks if you -;; really want to fill-region in TeX-mode, because I find this -;; to be very dangerous. -;; CHNGCASE is case-flip for the character under the cursor only. -;; I felt that case-flip region is unlikely, as usually you -;; upcase-region or downcase region. Also, unlike EDT it -;; is independent of the direction you are going, as that -;; drives me nuts. -;; -;; I use Emacs definition of what a word is. This is considerably different -;; from what EDT thinks a word is. This is not good for dyed-in-the-wool EDT -;; fans, but is probably preferable for experienced Emacs users. My assumption -;; is that the former are a dying breed now that GNU Emacs has made it to VMS, -;; but let me know how you feel. Also, when you undelete a word it leave the -;; point at the end of the undeleted text, rather than the beginning. I might -;; change this as I'm not sure if I like this or not. I'm also not sure if I -;; want it to set the mark each time you delete a character or word. -;; -;; Backspace does not invoke beginning-of-line, because ^H is the help prefix, -;; and I felt it should be left as such. You can change this if you like. -;; -;; The ADVANCE and BACKUP keys do not work as terminators for forward or -;; backward searches. In Emacs, all search strings are terminated by return. -;; The searches will however go forward or backward depending on your current -;; direction. Also, when you change directions, the mode line will not be -;; updated immediately, but only when you next execute an emacs function. -;; Personally, I consider this to be a bug, not a feature. -;; -;; This should also work with VT-2xx's, though I haven't tested it extensively -;; on those terminals. It assumes that the CSI-map of vt_200.el has been -;; defined. -;; -;; There are also a whole bunch of GOLD letter, and GOLD character bindings: -;; look at edtdoc.el for them, or better still, look at the edt.el lisp code, -;; because after all, in the true Lisp tradition, the source code is *assumed* -;; to be self-documenting :-) -;; -;; Mike Clarkson, ...!allegra \ BITNET: mike@YUYETTI or -;; CRESS, York University, ...!decvax \ SYMALG@YUSOL -;; 4700 Keele Street, ...!ihnp4 > !utzoo!yetti!mike -;; North York, Ontario, ...!linus / -;; CANADA M3J 1P3. ...!watmath / Phone: +1 (416) 736-2100 x 7767 -;; -;; Note that I am not on ARPA, and must gateway any ARPA mail through BITNET or -;; UUCP. If you have a UUCP or BITNET address please use it for communication -;; so that I can reach you directly. If you have both, the BITNET address -;; is preferred. - -;;; Code: - -(defvar edt-last-deleted-lines "" - "Last text deleted by an EDT emulation `line-delete' command.") -(defvar edt-last-deleted-words "" - "Last text deleted by an EDT emulation `word-delete' command.") -(defvar edt-last-deleted-chars "" - "Last text deleted by an EDT emulation `character-delete' command.") - -(defun delete-current-line (num) - "Delete one or specified number of lines after point. -This includes the newline character at the end of each line. -They are saved for the EDT `undelete-lines' command." - (interactive "p") - (let ((beg (point))) - (forward-line num) - (if (not (eq (preceding-char) ?\n)) - (insert "\n")) - (setq edt-last-deleted-lines - (buffer-substring beg (point))) - (delete-region beg (point)))) - -(defun delete-to-eol (num) - "Delete text up to end of line. -With argument, delete up to to Nth line-end past point. -They are saved for the EDT `undelete-lines' command." - (interactive "p") - (let ((beg (point))) - (forward-char 1) - (end-of-line num) - (setq edt-last-deleted-lines - (buffer-substring beg (point))) - (delete-region beg (point)))) - -(defun delete-current-word (num) - "Delete one or specified number of words after point. -They are saved for the EDT `undelete-words' command." - (interactive "p") - (let ((beg (point))) - (forward-word num) - (setq edt-last-deleted-words - (buffer-substring beg (point))) - (delete-region beg (point)))) - -(defun edt-delete-previous-word (num) - "Delete one or specified number of words before point. -They are saved for the EDT `undelete-words' command." - (interactive "p") - (let ((beg (point))) - (forward-word (- num)) - (setq edt-last-deleted-words - (buffer-substring (point) beg)) - (delete-region beg (point)))) - -(defun delete-current-char (num) - "Delete one or specified number of characters after point. -They are saved for the EDT `undelete-chars' command." - (interactive "p") - (setq edt-last-deleted-chars - (buffer-substring (point) (min (point-max) (+ (point) num)))) - (delete-region (point) (min (point-max) (+ (point) num)))) - -(defun delete-previous-char (num) - "Delete one or specified number of characters before point. -They are saved for the EDT `undelete-chars' command." - (interactive "p") - (setq edt-last-deleted-chars - (buffer-substring (max (point-min) (- (point) num)) (point))) - (delete-region (max (point-min) (- (point) num)) (point))) - -(defun undelete-lines () - "Yank lines deleted by last EDT `line-delete' command." - (interactive) - (insert edt-last-deleted-lines)) - -(defun undelete-words () - "Yank words deleted by last EDT `word-delete' command." - (interactive) - (insert edt-last-deleted-words)) - -(defun undelete-chars () - "Yank characters deleted by last EDT `character-delete' command." - (interactive) - (insert edt-last-deleted-chars)) - -(defun next-end-of-line (num) - "Move to end of line; if at end, move to end of next line. -Accepts a prefix argument for the number of lines to move." - (interactive "p") - (forward-char) - (end-of-line num)) - -(defun previous-end-of-line (num) - "Move EOL upward. -Accepts a prefix argument for the number of lines to move." - (interactive "p") - (end-of-line (- 1 num))) - -(defun forward-to-word (num) - "Move to next word-beginning, or to Nth following word-beginning." - (interactive "p") - (forward-word (1+ num)) - (forward-word -1)) - -(defun backward-to-word (num) - "Move back to word-end, or to Nth word-end seen." - (interactive "p") - (forward-word (- (1+ num))) - (forward-word 1)) - -(defun backward-line (num) - "Move point to start of previous line. -Prefix argument serves as repeat-count." - (interactive "p") - (forward-line (- num))) - -(defun scroll-window-down (num) - "Scroll the display down a window-full. -Accepts a prefix argument for the number of window-fulls to scroll." - (interactive "p") - (scroll-down (- (* (window-height) num) 2))) - -(defun scroll-window-up (num) - "Scroll the display up a window-full. -Accepts a prefix argument for the number of window-fulls to scroll." - (interactive "p") - (scroll-up (- (* (window-height) num) 2))) - -(defun next-paragraph (num) - "Move to beginning of the next indented paragraph. -Accepts a prefix argument for the number of paragraphs." - (interactive "p") - (while (> num 0) - (next-line 1) - (forward-paragraph) - (previous-line 1) - (if (eolp) (next-line 1)) - (setq num (1- num)))) - -(defun previous-paragraph (num) - "Move to beginning of previous indented paragraph. -Accepts a prefix argument for the number of paragraphs." - (interactive "p") - (while (> num 0) - (backward-paragraph) - (previous-line 1) - (if (eolp) (next-line 1)) - (setq num (1- num)))) - -(defun move-to-beginning () - "Move cursor to the beginning of buffer, but don't set the mark." - (interactive) - (goto-char (point-min))) - -(defun move-to-end () - "Move cursor to the end of buffer, but don't set the mark." - (interactive) - (goto-char (point-max))) - -(defun goto-percent (perc) - "Move point to ARG percentage of the buffer." - (interactive "NGoto-percentage: ") - (if (or (> perc 100) (< perc 0)) - (error "Percentage %d out of range 0 < percent < 100" perc) - (goto-char (/ (* (point-max) perc) 100)))) - -(defun update-mode-line () - "Ensure mode-line reflects all changes." - (set-buffer-modified-p (buffer-modified-p)) - (sit-for 0)) - -(defun advance-direction () - "Set EDT Advance mode so keypad commands move forward." - (interactive) - (setq edt-direction-string " ADVANCE") - (global-set-key [kp-f3] 'isearch-forward) - (global-set-key [kp-8] 'scroll-window-up) - (global-set-key [kp-7] 'next-paragraph) - (global-set-key [kp-1] 'forward-to-word) - (global-set-key [kp-2] 'next-end-of-line) - (global-set-key [kp-3] 'forward-char) - (global-set-key [kp-0] 'forward-line) - (update-mode-line)) - -(defun backup-direction () - "Set EDT Backup mode so keypad commands move backward." - (interactive) - (setq edt-direction-string " BACKUP") - (global-set-key [kp-f3] 'isearch-backward) - (global-set-key [kp-8] 'scroll-window-down) - (global-set-key [kp-7] 'previous-paragraph) - (global-set-key [kp-1] 'backward-to-word) - (global-set-key [kp-2] 'previous-end-of-line) - (global-set-key [kp-3] 'backward-char) - (global-set-key [kp-9] 'backward-line) - (update-mode-line)) - -(defun edt-beginning-of-window () - "Home cursor to top of window." - (interactive) - (move-to-window-line 0)) - -(defun edt-line-to-bottom-of-window () - "Move the current line to the top of the window." - (interactive) - (recenter -1)) - -(defun edt-line-to-top-of-window () - "Move the current line to the top of the window." - (interactive) - (recenter 0)) - -(defun case-flip-character (num) - "Change the case of the character under the cursor. -Accepts a prefix argument of the number of characters to invert." - (interactive "p") - (while (> num 0) - (funcall (if (<= ?a (following-char)) - 'upcase-region 'downcase-region) - (point) (1+ (point))) - (forward-char 1) - (setq num (1- num)))) - -(defun indent-or-fill-region () - "Fill region in text modes, indent region in programming language modes." - (interactive) - (if (string= paragraph-start "^$\\|^\f") - (indent-region (point) (mark) nil) - (fill-region (point) (mark)))) - -(defun mark-section-wisely () - "Mark the section in a manner consistent with the major-mode. -Uses mark-defun for emacs-lisp, lisp, -mark-c-function for C, -and mark-paragraph for other modes." - (interactive) - (cond ((eq major-mode 'emacs-lisp-mode) - (mark-defun)) - ((eq major-mode 'lisp-mode) - (mark-defun)) - ((eq major-mode 'c-mode) - (mark-c-function)) - (t (mark-paragraph)))) - -;;; Key Bindings -;;;###autoload -(defun edt-emulation-on () - "Emulate DEC's EDT editor. -Note that many keys are rebound; including nearly all keypad keys. -Use \\[edt-emulation-off] to undo all rebindings except the keypad keys." - (interactive) - (advance-direction) - (edt-bind-gold-keypad) - (setq edt-mode-old-c-\\ (lookup-key global-map "\C-\\")) - (global-set-key "\C-\\" 'quoted-insert) - (setq edt-mode-old-delete (lookup-key global-map "\177")) - (global-set-key "\177" 'delete-previous-char) ;"Delete" - (setq edt-mode-old-lisp-delete (lookup-key emacs-lisp-mode-map "\177")) - (define-key emacs-lisp-mode-map "\177" 'delete-previous-char) ;"Delete" - (define-key lisp-mode-map "\177" 'delete-previous-char) ;"Delete" - (setq edt-mode-old-linefeed (lookup-key global-map "\C-j")) - (global-set-key "\C-j" 'edt-delete-previous-word) ;"LineFeed" - (define-key esc-map "?" 'apropos)) ;"<ESC>?" - -(defun edt-emulation-off () - "Return from EDT emulation to normal Emacs key bindings. -The keys redefined by \\[edt-emulation-on] are given their old definitions." - (interactive) - (setq edt-direction-string nil) - (global-set-key "\C-\\" edt-mode-old-c-\\) - (global-set-key "\177" edt-mode-old-delete) ;"Delete" - (define-key emacs-lisp-mode-map "\177" edt-mode-old-lisp-delete) ;"Delete" - (define-key lisp-mode-map "\177" edt-mode-old-lisp-delete) ;"Delete" - (global-set-key "\C-j" edt-mode-old-linefeed)) ;"LineFeed" - -(defvar GOLD-map (make-keymap) - "`GOLD-map' maps the function keys on the VT100 keyboard preceded -by the PF1 key. GOLD is the ASCII the 7-bit escape sequence <ESC>OP.") - -(defalias 'GOLD-prefix GOLD-map) - -(global-set-key [home] 'edt-beginning-of-window) -(global-set-key [kp-f2] 'describe-key) -(global-set-key [kp-f4] 'delete-current-line) -(global-set-key [kp-9] 'append-to-buffer) -(global-set-key [kp-subtract] 'delete-current-word) -(global-set-key [kp-4] 'advance-direction) -(global-set-key [kp-5] 'backup-direction) -(global-set-key [kp-6] 'kill-region) -(global-set-key [kp-separator] 'delete-current-char) -(global-set-key [kp-decimal] 'set-mark-command) -(global-set-key [kp-enter] 'other-window) -(global-set-key [kp-f1] 'GOLD-prefix) - -;;Bind GOLD/Keyboard keys - -(define-key GOLD-map "\C-g" 'keyboard-quit) ; just for safety -(define-key GOLD-map "\177" 'delete-window) ;"Delete" -(define-key GOLD-map "\C-h" 'delete-other-windows) ;"BackSpace" -(define-key GOLD-map "\C-m" 'newline-and-indent) ;"Return" -(define-key GOLD-map " " 'undo) ;"Spacebar" -(define-key GOLD-map "%" 'goto-percent) ; "%" -(define-key GOLD-map "=" 'goto-line) ; "=" -(define-key GOLD-map "`" 'what-line) ; "`" -(define-key GOLD-map "\C-\\" 'split-window-vertically) ; "Control-\" - -; GOLD letter combinations: -(define-key GOLD-map "b" 'buffer-menu) ; "b" -(define-key GOLD-map "B" 'buffer-menu) ; "B" -(define-key GOLD-map "d" 'delete-window) ; "d" -(define-key GOLD-map "D" 'delete-window) ; "D" -(define-key GOLD-map "e" 'compile) ; "e" -(define-key GOLD-map "E" 'compile) ; "E" -(define-key GOLD-map "i" 'insert-file) ; "i" -(define-key GOLD-map "I" 'insert-file) ; "I" -(define-key GOLD-map "l" 'goto-line) ; "l" -(define-key GOLD-map "L" 'goto-line) ; "L" -(define-key GOLD-map "m" 'save-some-buffers) ; "m" -(define-key GOLD-map "M" 'save-some-buffers) ; "m" -(define-key GOLD-map "n" 'next-error) ; "n" -(define-key GOLD-map "N" 'next-error) ; "N" -(define-key GOLD-map "o" 'switch-to-buffer-other-window) ; "o" -(define-key GOLD-map "O" 'switch-to-buffer-other-window) ; "O" -(define-key GOLD-map "r" 'revert-file) ; "r" -(define-key GOLD-map "r" 'revert-file) ; "R" -(define-key GOLD-map "s" 'save-buffer) ; "s" -(define-key GOLD-map "S" 'save-buffer) ; "S" -(define-key GOLD-map "v" 'find-file-other-window) ; "v" -(define-key GOLD-map "V" 'find-file-other-window) ; "V" -(define-key GOLD-map "w" 'write-file) ; "w" -(define-key GOLD-map "w" 'write-file) ; "W" -;(define-key GOLD-map "z" 'shrink-window) ; "z" -;(define-key GOLD-map "Z" 'shrink-window) ; "z" - -;Bind GOLD/Keypad keys -(defun edt-bind-gold-keypad () - (define-key GOLD-map [up] 'edt-line-to-top-of-window) - (define-key GOLD-map [down] 'edt-line-to-bottom-of-window) - (define-key GOLD-map [left] 'backward-sentence) - (define-key GOLD-map [right] 'forward-sentence) - (define-key GOLD-map [kp-f1] 'mark-section-wisely) - (define-key GOLD-map [kp-f2] 'describe-function) - (define-key GOLD-map [kp-f3] 'occur) - (define-key GOLD-map [kp-f4] 'undelete-lines) - (define-key GOLD-map [kp-0] 'open-line) - (define-key GOLD-map [kp-1] 'case-flip-character) - (define-key GOLD-map [kp-2] 'delete-to-eol) - (define-key GOLD-map [kp-3] 'copy-region-as-kill) - (define-key GOLD-map [kp-4] 'move-to-end) - (define-key GOLD-map [kp-5] 'move-to-beginning) - (define-key GOLD-map [kp-6] 'yank) - (define-key GOLD-map [kp-7] 'execute-extended-command) - (define-key GOLD-map [kp-8] 'indent-or-fill-region) - (define-key GOLD-map [kp-9] 'replace-regexp) - (define-key GOLD-map [kp-subtract] 'undelete-words) - (define-key GOLD-map [kp-separator] 'undelete-chars) - (define-key GOLD-map [kp-decimal] 'redraw-display) - (define-key GOLD-map [kp-enter] 'shell-command)) - -;; Make direction of motion show in mode line -;; while EDT emulation is turned on. -;; Note that the keypad is always turned on when in Emacs. - -(or (assq 'edt-direction-string minor-mode-alist) - (setq minor-mode-alist (cons '(edt-direction-string edt-direction-string) - minor-mode-alist))) - -;;; edt.el ends here |