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morse.c revision 1.3 
      1 /*	$NetBSD: morse.c,v 1.3 1995/03/23 08:35:24 cgd 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 #ifndef lint
     37 static char copyright[] =
     38 "@(#) 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 static char rcsid[] = "$NetBSD: morse.c,v 1.3 1995/03/23 08:35:24 cgd Exp $";
     47 #endif
     48 #endif /* not lint */
     49 
     50 #include <stdio.h>
     51 #include <ctype.h>
     52 
     53 static char
     54 	*digit[] = {
     55 	"-----",
     56 	".----",
     57 	"..---",
     58 	"...--",
     59 	"....-",
     60 	".....",
     61 	"-....",
     62 	"--...",
     63 	"---..",
     64 	"----.",
     65 },
     66 	*alph[] = {
     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 static int sflag;
     96 
     97 main(argc, argv)
     98 	int argc;
     99 	char **argv;
    100 {
    101 	extern char *optarg;
    102 	extern int optind;
    103 	register int ch;
    104 	register char *p;
    105 
    106 	while ((ch = getopt(argc, argv, "s")) != EOF)
    107 		switch((char)ch) {
    108 		case 's':
    109 			sflag = 1;
    110 			break;
    111 		case '?':
    112 		default:
    113 			fprintf(stderr, "usage: morse [string ...]");
    114 			exit(1);
    115 		}
    116 	argc -= optind;
    117 	argv += optind;
    118 
    119 	if (*argv)
    120 		do {
    121 			for (p = *argv; *p; ++p)
    122 				morse((int)*p);
    123 		} while (*++argv);
    124 	else while ((ch = getchar()) != EOF)
    125 		morse(ch);
    126 }
    127 
    128 morse(c)
    129 	register int c;
    130 {
    131 	if (isalpha(c))
    132 		show(alph[c - (isupper(c) ? 'A' : 'a')]);
    133 	else if (isdigit(c))
    134 		show(digit[c - '0']);
    135 	else if (c == ',')
    136 		show("--..--");
    137 	else if (c == '.')
    138 		show(".-.-.-");
    139 	else if (isspace(c))
    140 		show(" ...\n");
    141 }
    142 
    143 show(s)
    144 	register char *s;
    145 {
    146 	if (sflag)
    147 		printf(" %s", s);
    148 	else for (; *s; ++s)
    149 		printf(" %s", *s == '.' ? "dit" : "daw");
    150 	printf(",\n");
    151 }
    152