386BSD 0.1 development

[unix-history] / usr / othersrc / games / morse / morse.c

/*
* Copyright (c) 1988 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by the University of
*      California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1988 Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)morse.c     5.3 (Berkeley) 2/28/91";
#endif /* not lint */

#include <stdio.h>
#include <ctype.h>

static char
       *digit[] = {
       "-----",
       ".----",
       "..---",
       "...--",
       "....-",
       ".....",
       "-....",
       "--...",
       "---..",
       "----.",
},
       *alph[] = {
       ".-",
       "-...",
       "-.-.",
       "-..",
       ".",
       "..-.",
       "--.",
       "....",
       "..",
       ".---",
       "-.-",
       ".-..",
       "--",
       "-.",
       "---",
       ".--.",
       "--.-",
       ".-.",
       "...",
       "-",
       "..-",
       "...-",
       ".--",
       "-..-",
       "-.--",
       "--..",
};

static int sflag;

main(argc, argv)
       int argc;
       char **argv;
{
       extern char *optarg;
       extern int optind;
       register int ch;
       register char *p;

       while ((ch = getopt(argc, argv, "s")) != EOF)
               switch((char)ch) {
               case 's':
                       sflag = 1;
                       break;
               case '?':
               default:
                       fprintf(stderr, "usage: morse [string ...]");
                       exit(1);
               }
       argc -= optind;
       argv += optind;

       if (*argv)
               do {
                       for (p = *argv; *p; ++p)
                               morse((int)*p);
               } while (*++argv);
       else while ((ch = getchar()) != EOF)
               morse(ch);
}

morse(c)
       register int c;
{
       if (isalpha(c))
               show(alph[c - (isupper(c) ? 'A' : 'a')]);
       else if (isdigit(c))
               show(digit[c - '0']);
       else if (c == ',')
               show("--..--");
       else if (c == '.')
               show(".-.-.-");
       else if (isspace(c))
               show(" ...\n");
}

show(s)
       register char *s;
{
       if (sflag)
               printf(" %s", s);
       else for (; *s; ++s)
               printf(" %s", *s == '.' ? "dit" : "daw");
       printf(",\n");
}