1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
|
;;; morse.el --- convert text to morse code and back -*- coding: utf-8 -*-
;; Copyright (C) 1995, 2001, 2002, 2003, 2004, 2005,
;; 2006 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., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, 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
|
