mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-24 07:20:37 +00:00
145 lines
3.9 KiB
EmacsLisp
145 lines
3.9 KiB
EmacsLisp
;;; morse.el --- convert text to morse code and back -*- coding: utf-8 -*-
|
|
|
|
;; Copyright (C) 1995, 2002, 2004 Free Software Foundation, Inc.
|
|
|
|
;; Author: Rick Farnbach <rick_farnbach@MENTORG.COM>
|
|
;; Keywords: games
|
|
|
|
;; 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, Inc., 59 Temple Place - Suite 330,
|
|
;; Boston, MA 02111-1307, USA.
|
|
|
|
;;; Commentary:
|
|
|
|
;; Converts text to Morse code and back with M-x morse-region and
|
|
;; M-x unmorse-region (though Morse code is no longer official :-().
|
|
|
|
;;; Code:
|
|
|
|
(defvar morse-code '(("a" . ".-")
|
|
("b" . "-...")
|
|
("c" . "-.-.")
|
|
("d" . "-..")
|
|
("e" . ".")
|
|
("f" . "..-.")
|
|
("g" . "--.")
|
|
("h" . "....")
|
|
("i" . "..")
|
|
("j" . ".---")
|
|
("k" . "-.-")
|
|
("l" . ".-..")
|
|
("m" . "--")
|
|
("n" . "-.")
|
|
("o" . "---")
|
|
("p" . ".--.")
|
|
("q" . "--.-")
|
|
("r" . ".-.")
|
|
("s" . "...")
|
|
("t" . "-")
|
|
("u" . "..-")
|
|
("v" . "...-")
|
|
("w" . ".--")
|
|
("x" . "-..-")
|
|
("y" . "-.--")
|
|
("z" . "--..")
|
|
;; Punctuation
|
|
("=" . "-...-")
|
|
("?" . "..--..")
|
|
("/" . "-..-.")
|
|
("," . "--..--")
|
|
("." . ".-.-.-")
|
|
(":" . "---...")
|
|
("'" . ".----.")
|
|
("-" . "-....-")
|
|
("(" . "-.--.-")
|
|
(")" . "-.--.-")
|
|
;; Numbers
|
|
("0" . "-----")
|
|
("1" . ".----")
|
|
("2" . "..---")
|
|
("3" . "...--")
|
|
("4" . "....-")
|
|
("5" . ".....")
|
|
("6" . "-....")
|
|
("7" . "--...")
|
|
("8" . "---..")
|
|
("9" . "----.")
|
|
;; Non-ASCII
|
|
("Ä" . ".-.-")
|
|
("Æ" . ".-.-")
|
|
("Á" . ".--.-")
|
|
("Å" . ".--.-")
|
|
;; ligature character?? ("Ch" . "----")
|
|
("ß" . ".../...")
|
|
("É" . "..-..")
|
|
("Ñ" . "--.--")
|
|
("Ö" . "---.")
|
|
("Ø" . "---.")
|
|
("Ü" . "..--")
|
|
;; Recently standardized
|
|
("@" . ".--.-."))
|
|
"Morse code character set.")
|
|
|
|
;;;###autoload
|
|
(defun morse-region (beg end)
|
|
"Convert all text in a given region to morse code."
|
|
(interactive "r")
|
|
(if (integerp end)
|
|
(setq end (copy-marker end)))
|
|
(save-excursion
|
|
(let ((sep "")
|
|
str morse)
|
|
(goto-char beg)
|
|
(while (< (point) end)
|
|
(setq str (downcase (buffer-substring (point) (1+ (point)))))
|
|
(cond ((looking-at "\\s-+")
|
|
(goto-char (match-end 0))
|
|
(setq sep ""))
|
|
((setq morse (assoc str morse-code))
|
|
(delete-char 1)
|
|
(insert sep (cdr morse))
|
|
(setq sep "/"))
|
|
(t
|
|
(forward-char 1)
|
|
(setq sep "")))))))
|
|
|
|
;;;###autoload
|
|
(defun unmorse-region (beg end)
|
|
"Convert morse coded text in region to ordinary ASCII text."
|
|
(interactive "r")
|
|
(if (integerp end)
|
|
(setq end (copy-marker end)))
|
|
(save-excursion
|
|
(let (str paren morse)
|
|
(goto-char beg)
|
|
(while (< (point) end)
|
|
(if (null (looking-at "[-.]+"))
|
|
(forward-char 1)
|
|
(setq str (buffer-substring (match-beginning 0) (match-end 0)))
|
|
(if (null (setq morse (rassoc str morse-code)))
|
|
(goto-char (match-end 0))
|
|
(replace-match
|
|
(if (string-equal "(" (car morse))
|
|
(if (setq paren (null paren)) "(" ")")
|
|
(car morse)) t)
|
|
(if (looking-at "/")
|
|
(delete-char 1))))))))
|
|
|
|
(provide 'morse)
|
|
|
|
;;; arch-tag: 3331e6c1-9a9e-453f-abfd-163a9c3f93a6
|
|
;;; morse.el ends here
|