;;; misc.el --- some nonstandard basic editing commands for Emacs
-;; Copyright (C) 1989 Free Software Foundation, Inc.
+;; Copyright (C) 1989, 2001, 2002, 2003, 2004, 2005,
+;; 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
;; Maintainer: FSF
;; Keywords: convenience
;; This file is part of GNU Emacs.
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; 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.
+;; the Free Software Foundation, either version 3 of the License, 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
;; 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, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
(if (< cc (current-column))
(if (= (preceding-char) ?\t)
(progn
- (setq string (make-string (min n (- (current-column) cc)) ?\ ))
+ (setq string (make-string (min n (- (current-column) cc)) ?\s))
(setq n (- n (min n (- (current-column) cc)))))
;; In middle of ctl char => copy that whole char.
(backward-char 1)))
(+ n (point)))))))
(insert string)))
+;; Variation of `zap-to-char'.
+
+(defun zap-up-to-char (arg char)
+ "Kill up to, but not including ARGth occurrence of CHAR.
+Case is ignored if `case-fold-search' is non-nil in the current buffer.
+Goes backward if ARG is negative; error if CHAR not found.
+Ignores CHAR at point."
+ (interactive "p\ncZap up to char: ")
+ (let ((direction (if (>= arg 0) 1 -1)))
+ (kill-region (point)
+ (progn
+ (forward-char direction)
+ (unwind-protect
+ (search-forward (char-to-string char) nil nil arg)
+ (backward-char direction))
+ (point)))))
+
;; These were added with an eye to making possible a more CCA-compatible
;; command set; but that turned out not to be interesting.
(push-mark (point-max)))
(defun upcase-char (arg)
- "Uppercasify ARG chars starting from point. Point doesn't move"
+ "Uppercasify ARG chars starting from point. Point doesn't move."
(interactive "p")
(save-excursion
(upcase-region (point) (progn (forward-char arg) (point)))))
(interactive "p")
(forward-to-word (- arg)))
+;;;###autoload
+(defun butterfly ()
+ "Use butterflies to flip the desired bit on the drive platter.
+Open hands and let the delicate wings flap once. The disturbance
+ripples outward, changing the flow of the eddy currents in the
+upper atmosphere. These cause momentary pockets of higher-pressure
+air to form, which act as lenses that deflect incoming cosmic rays,
+focusing them to strike the drive platter and flip the desired bit.
+You can type `M-x butterfly C-M-c' to run it. This is a permuted
+variation of `C-x M-c M-butterfly' from url `http://xkcd.com/378/'."
+ (interactive)
+ (if (yes-or-no-p "Do you really want to unleash the powers of the butterfly? ")
+ (progn
+ (switch-to-buffer (get-buffer-create "*butterfly*"))
+ (erase-buffer)
+ (sit-for 0)
+ (animate-string "Amazing physics going on..."
+ (/ (window-height) 2) (- (/ (window-width) 2) 12))
+ (sit-for (* 5 (/ (abs (random)) (float most-positive-fixnum))))
+ (message "Successfully flipped one bit!"))
+ (message "Well, then go to xkcd.com!")
+ (browse-url "http://xkcd.com/378/")))
+
(provide 'misc)
-;;; arch-tag: 908f7884-c19e-4388-920c-9cfa425e449b
+;; arch-tag: 908f7884-c19e-4388-920c-9cfa425e449b
;;; misc.el ends here