morse/morse.c

   1 /*      $NetBSD: morse.c,v 1.4 1997/10/10 16:38:40 lukem Exp $  */
   2
   3 /*
   4  * Copyright (c) 1988, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by the University of
  18  *      California, Berkeley and its contributors.
  19  * 4. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include <sys/cdefs.h>
  37 #ifndef lint
  38 __COPYRIGHT("@(#) Copyright (c) 1988, 1993\n\
  39         The Regents of the University of California.  All rights reserved.\n");
  40 #endif /* not lint */
  41
  42 #ifndef lint
  43 #if 0
  44 static char sccsid[] = "@(#)morse.c     8.1 (Berkeley) 5/31/93";
  45 #else
  46 __RCSID("$NetBSD: morse.c,v 1.4 1997/10/10 16:38:40 lukem Exp $");
  47 #endif
  48 #endif /* not lint */
  49
  50 #include <ctype.h>
  51 #include <stdio.h>
  52 #include <unistd.h>
  53
  54 static char
  55         *digit[] = {
  56         "-----",
  57         ".----",
  58         "..---",
  59         "...--",
  60         "....-",
  61         ".....",
  62         "-....",
  63         "--...",
  64         "---..",
  65         "----.",
  66 },
  67         *alph[] = {
  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 int     main __P((int, char *[]));
  97 void    morse __P((int));
  98 void    show __P((char *));
  99
 100 static int sflag;
 101
 102 int
 103 main(argc, argv)
 104         int argc;
 105         char **argv;
 106 {
 107         int ch;
 108         char *p;
 109
 110         while ((ch = getopt(argc, argv, "s")) != -1)
 111                 switch((char)ch) {
 112                 case 's':
 113                         sflag = 1;
 114                         break;
 115                 case '?':
 116                 default:
 117                         fprintf(stderr, "usage: morse [string ...]");
 118                         exit(1);
 119                 }
 120         argc -= optind;
 121         argv += optind;
 122
 123         if (*argv)
 124                 do {
 125                         for (p = *argv; *p; ++p)
 126                                 morse((int)*p);
 127                 } while (*++argv);
 128         else while ((ch = getchar()) != EOF)
 129                 morse(ch);
 130         exit(0);
 131 }
 132
 133 void
 134 morse(c)
 135         int c;
 136 {
 137         if (isalpha(c))
 138                 show(alph[c - (isupper(c) ? 'A' : 'a')]);
 139         else if (isdigit(c))
 140                 show(digit[c - '0']);
 141         else if (c == ',')
 142                 show("--..--");
 143         else if (c == '.')
 144                 show(".-.-.-");
 145         else if (isspace(c))
 146                 show(" ...\n");
 147 }
 148
 149 void
 150 show(s)
 151         char *s;
 152 {
 153         if (sflag)
 154                 printf(" %s", s);
 155         else for (; *s; ++s)
 156                 printf(" %s", *s == '.' ? "dit" : "daw");
 157         printf(",\n");
 158 }