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morse.c revision 1.4 
      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 }
    159