1;;; dissociate.el --- scramble text amusingly for Emacs 2 3;; Copyright (C) 1985, 2001, 2002, 2003, 2004, 2005, 4;; 2006, 2007 Free Software Foundation, Inc. 5 6;; Maintainer: FSF 7;; Keywords: games 8 9;; This file is part of GNU Emacs. 10 11;; GNU Emacs is free software; you can redistribute it and/or modify 12;; it under the terms of the GNU General Public License as published by 13;; the Free Software Foundation; either version 2, or (at your option) 14;; any later version. 15 16;; GNU Emacs is distributed in the hope that it will be useful, 17;; but WITHOUT ANY WARRANTY; without even the implied warranty of 18;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19;; GNU General Public License for more details. 20 21;; You should have received a copy of the GNU General Public License 22;; along with GNU Emacs; see the file COPYING. If not, write to the 23;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 24;; Boston, MA 02110-1301, USA. 25 26;;; Commentary: 27 28;; The single entry point, `dissociated-press', applies a travesty 29;; generator to the current buffer. The results can be quite amusing. 30 31;;; Code: 32 33;;;###autoload 34(defun dissociated-press (&optional arg) 35 "Dissociate the text of the current buffer. 36Output goes in buffer named *Dissociation*, 37which is redisplayed each time text is added to it. 38Every so often the user must say whether to continue. 39If ARG is positive, require ARG chars of continuity. 40If ARG is negative, require -ARG words of continuity. 41Default is 2." 42 (interactive "P") 43 (setq arg (if arg (prefix-numeric-value arg) 2)) 44 (let* ((inbuf (current-buffer)) 45 (outbuf (get-buffer-create "*Dissociation*")) 46 (move-function (if (> arg 0) 'forward-char 'forward-word)) 47 (move-amount (if (> arg 0) arg (- arg))) 48 (search-function (if (> arg 0) 'search-forward 'word-search-forward)) 49 (last-query-point 0)) 50 (if (= (point-max) (point-min)) 51 (error "The buffer contains no text to start from")) 52 (switch-to-buffer outbuf) 53 (erase-buffer) 54 (while 55 (save-excursion 56 (goto-char last-query-point) 57 (vertical-motion (- (window-height) 4)) 58 (or (= (point) (point-max)) 59 (and (progn (goto-char (point-max)) 60 (y-or-n-p "Continue dissociation? ")) 61 (progn 62 (message "") 63 (recenter 1) 64 (setq last-query-point (point-max)) 65 t)))) 66 (let (start end) 67 (save-excursion 68 (set-buffer inbuf) 69 (setq start (point)) 70 (if (eq move-function 'forward-char) 71 (progn 72 (setq end (+ start (+ move-amount (random 16)))) 73 (if (> end (point-max)) 74 (setq end (+ 1 move-amount (random 16)))) 75 (goto-char end)) 76 (funcall move-function 77 (+ move-amount (random 16)))) 78 (setq end (point))) 79 (let ((opoint (point))) 80 (insert-buffer-substring inbuf start end) 81 (save-excursion 82 (goto-char opoint) 83 (end-of-line) 84 (and (> (current-column) fill-column) 85 (do-auto-fill))))) 86 (save-excursion 87 (set-buffer inbuf) 88 (if (eobp) 89 (goto-char (point-min)) 90 (let ((overlap 91 (buffer-substring (prog1 (point) 92 (funcall move-function 93 (- move-amount))) 94 (point)))) 95 (goto-char (1+ (random (1- (point-max))))) 96 (or (funcall search-function overlap nil t) 97 (let ((opoint (point))) 98 (goto-char 1) 99 (funcall search-function overlap opoint t)))))) 100 (sit-for 0)))) 101 102(random t) 103 104(provide 'dissociate) 105 106;;; arch-tag: 90d197d1-409b-45c5-a0b5-fbfb2e06334f 107;;; dissociate.el ends here 108