lisp/play/studly.el

   1 ;;; studly.el --- StudlyCaps (tm)(r)(c)(xxx)
   2
   3 ;;; This is in the public domain, since it was distributed
   4 ;;; by its author without a copyright notice in 1986.
   5
   6 ;; This file is part of GNU Emacs.
   7
   8 ;; Keywords: games
   9
  10 ;;; Commentary:
  11
  12 ;; Functions to studlycapsify a region, word, or buffer.  Possibly the
  13 ;; esoteric significance of studlycapsification escapes you; that is,
  14 ;; you suffer from autostudlycapsifibogotification.  Too bad.
  15
  16 ;;; Code:
  17
  18 ;;;###autoload
  19 (defun studlify-region (begin end)
  20   "Studlify-case the region"
  21   (interactive "*r")
  22   (save-excursion
  23     (goto-char begin)
  24     (setq begin (point))
  25     (while (and (<= (point) end)
  26                 (not (looking-at "\\W*\\'")))
  27       (forward-word 1)
  28       (backward-word 1)
  29       (setq begin (max (point) begin))
  30       (forward-word 1)
  31       (let ((offset 0)
  32             (word-end (min (point) end))
  33             c)
  34         (goto-char begin)
  35         (while (< (point) word-end)
  36           (setq offset (+ offset (following-char)))
  37           (forward-char 1))
  38         (setq offset (+ offset (following-char)))
  39         (goto-char begin)
  40         (while (< (point) word-end)
  41           (setq c (following-char))
  42           (if (and (= (% (+ c offset) 4) 2)
  43                    (let ((ch (following-char)))
  44                      (or (and (>= ch ?a) (<= ch ?z))
  45                          (and (>= ch ?A) (<= ch ?Z)))))
  46               (progn
  47                 (delete-char 1)
  48                 (insert (logxor c ? ))))
  49           (forward-char 1))
  50         (setq begin (point))))))
  51
  52 ;;;###autoload
  53 (defun studlify-word (count)
  54   "Studlify-case the current word, or COUNT words if given an argument"
  55   (interactive "*p")
  56   (let ((begin (point)) end rb re)
  57     (forward-word count)
  58     (setq end (point))
  59     (setq rb (min begin end) re (max begin end))
  60     (studlify-region rb re)))
  61
  62 (defun studlify-buffer ()
  63   "Studlify-case the current buffer"
  64   (interactive "*")
  65   (studlify-region (point-min) (point-max)))
  66
  67 (provide 'studly)
  68
  69 ;;; studly.el ends here