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Annotation of 43BSDReno/games/morse/morse.c, revision 1.1.1.1

1.1       root        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 are permitted
                      6:  * provided that: (1) source distributions retain this entire copyright
                      7:  * notice and comment, and (2) distributions including binaries display
                      8:  * the following acknowledgement:  ``This product includes software
                      9:  * developed by the University of California, Berkeley and its contributors''
                     10:  * in the documentation or other materials provided with the distribution
                     11:  * and in all advertising materials mentioning features or use of this
                     12:  * software. Neither the name of the University nor the names of its
                     13:  * contributors may be used to endorse or promote products derived
                     14:  * from this software without specific prior written permission.
                     15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     16:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     17:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     18:  */
                     19: 
                     20: #ifndef lint
                     21: char copyright[] =
                     22: "@(#) Copyright (c) 1988 Regents of the University of California.\n\
                     23:  All rights reserved.\n";
                     24: #endif /* not lint */
                     25: 
                     26: #ifndef lint
                     27: static char sccsid[] = "@(#)morse.c    5.2 (Berkeley) 6/1/90";
                     28: #endif /* not lint */
                     29: 
                     30: #include <stdio.h>
                     31: #include <ctype.h>
                     32: 
                     33: static char
                     34:        *digit[] = {
                     35:        "-----",
                     36:        ".----",
                     37:        "..---",
                     38:        "...--",
                     39:        "....-",
                     40:        ".....",
                     41:        "-....",
                     42:        "--...",
                     43:        "---..",
                     44:        "----.",
                     45: },
                     46:        *alph[] = {
                     47:        ".-",
                     48:        "-...",
                     49:        "-.-.",
                     50:        "-..",
                     51:        ".",
                     52:        "..-.",
                     53:        "--.",
                     54:        "....",
                     55:        "..",
                     56:        ".---",
                     57:        "-.-",
                     58:        ".-..",
                     59:        "--",
                     60:        "-.",
                     61:        "---",
                     62:        ".--.",
                     63:        "--.-",
                     64:        ".-.",
                     65:        "...",
                     66:        "-",
                     67:        "..-",
                     68:        "...-",
                     69:        ".--",
                     70:        "-..-",
                     71:        "-.--",
                     72:        "--..",
                     73: };
                     74: 
                     75: static int sflag;
                     76: 
                     77: main(argc, argv)
                     78:        int argc;
                     79:        char **argv;
                     80: {
                     81:        extern char *optarg;
                     82:        extern int optind;
                     83:        register int ch;
                     84:        register char *p;
                     85: 
                     86:        while ((ch = getopt(argc, argv, "s")) != EOF)
                     87:                switch((char)ch) {
                     88:                case 's':
                     89:                        sflag = 1;
                     90:                        break;
                     91:                case '?':
                     92:                default:
                     93:                        fprintf(stderr, "usage: morse [string ...]");
                     94:                        exit(1);
                     95:                }
                     96:        argc -= optind;
                     97:        argv += optind;
                     98: 
                     99:        if (*argv)
                    100:                do {
                    101:                        for (p = *argv; *p; ++p)
                    102:                                morse((int)*p);
                    103:                } while (*++argv);
                    104:        else while ((ch = getchar()) != EOF)
                    105:                morse(ch);
                    106: }
                    107: 
                    108: static
                    109: morse(c)
                    110:        register int c;
                    111: {
                    112:        if (isalpha(c))
                    113:                show(alph[c - (isupper(c) ? 'A' : 'a')]);
                    114:        else if (isdigit(c))
                    115:                show(digit[c - '0']);
                    116:        else if (c == ',')
                    117:                show("--..--");
                    118:        else if (c == '.')
                    119:                show(".-.-.-");
                    120:        else if (isspace(c))
                    121:                show(" ...\n");
                    122: }
                    123: 
                    124: static
                    125: show(s)
                    126:        register char *s;
                    127: {
                    128:        if (sflag)
                    129:                printf(" %s", s);
                    130:        else for (; *s; ++s)
                    131:                printf(" %s", *s == '.' ? "dit" : "daw");
                    132:        printf(",\n");
                    133: }

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