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mirror of https://git.savannah.gnu.org/git/emacs.git synced 2024-11-28 07:45:00 +00:00
emacs/lisp/play/studly.el
1992-05-30 21:11:25 +00:00

69 lines
2.1 KiB
EmacsLisp

;;; studly.el --- StudlyCaps (tm)(r)(c)(xxx)
;; Copyright (C) 1992 Free Software Foundation, Inc.
;; 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 1, 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.
(defun studlify-region (begin end)
"Studlify-case the region"
(interactive "*r")
(save-excursion
(goto-char begin)
(setq begin (point))
(while (and (<= (point) end)
(not (looking-at "\\W*\\'")))
(forward-word 1)
(backward-word 1)
(setq begin (max (point) begin))
(forward-word 1)
(let ((offset 0)
(word-end (min (point) end))
c)
(goto-char begin)
(while (< (point) word-end)
(setq offset (+ offset (following-char)))
(forward-char 1))
(setq offset (+ offset (following-char)))
(goto-char begin)
(while (< (point) word-end)
(setq c (following-char))
(if (and (= (% (+ c offset) 4) 2)
(let ((ch (following-char)))
(or (and (>= ch ?a) (<= ch ?z))
(and (>= ch ?A) (<= ch ?Z)))))
(progn
(delete-char 1)
(insert (logxor c ? ))))
(forward-char 1))
(setq begin (point))))))
(defun studlify-word (count)
"Studlify-case the current word, or COUNT words if given an argument"
(interactive "*p")
(let ((begin (point)) end rb re)
(forward-word count)
(setq end (point))
(setq rb (min begin end) re (max begin end))
(studlify-region rb re)))
(defun studlify-buffer ()
"Studlify-case the current buffer"
(interactive "*")
(studlify-region (point-min) (point-max)))
;;; studly.el ends here