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morse.c revision 1.1 
      1 /*
      2  * Copyright (c) 1988 Regents of the University of California.
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 #ifndef lint
     35 char copyright[] =
     36 "@(#) Copyright (c) 1988 Regents of the University of California.\n\
     37  All rights reserved.\n";
     38 #endif /* not lint */
     39 
     40 #ifndef lint
     41 static char sccsid[] = "@(#)morse.c	5.3 (Berkeley) 2/28/91";
     42 #endif /* not lint */
     43 
     44 #include <stdio.h>
     45 #include <ctype.h>
     46 
     47 static char
     48 	*digit[] = {
     49 	"-----",
     50 	".----",
     51 	"..---",
     52 	"...--",
     53 	"....-",
     54 	".....",
     55 	"-....",
     56 	"--...",
     57 	"---..",
     58 	"----.",
     59 },
     60 	*alph[] = {
     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 static int sflag;
     90 
     91 main(argc, argv)
     92 	int argc;
     93 	char **argv;
     94 {
     95 	extern char *optarg;
     96 	extern int optind;
     97 	register int ch;
     98 	register char *p;
     99 
    100 	while ((ch = getopt(argc, argv, "s")) != EOF)
    101 		switch((char)ch) {
    102 		case 's':
    103 			sflag = 1;
    104 			break;
    105 		case '?':
    106 		default:
    107 			fprintf(stderr, "usage: morse [string ...]");
    108 			exit(1);
    109 		}
    110 	argc -= optind;
    111 	argv += optind;
    112 
    113 	if (*argv)
    114 		do {
    115 			for (p = *argv; *p; ++p)
    116 				morse((int)*p);
    117 		} while (*++argv);
    118 	else while ((ch = getchar()) != EOF)
    119 		morse(ch);
    120 }
    121 
    122 morse(c)
    123 	register int c;
    124 {
    125 	if (isalpha(c))
    126 		show(alph[c - (isupper(c) ? 'A' : 'a')]);
    127 	else if (isdigit(c))
    128 		show(digit[c - '0']);
    129 	else if (c == ',')
    130 		show("--..--");
    131 	else if (c == '.')
    132 		show(".-.-.-");
    133 	else if (isspace(c))
    134 		show(" ...\n");
    135 }
    136 
    137 show(s)
    138 	register char *s;
    139 {
    140 	if (sflag)
    141 		printf(" %s", s);
    142 	else for (; *s; ++s)
    143 		printf(" %s", *s == '.' ? "dit" : "daw");
    144 	printf(",\n");
    145 }
    146