BSD 2 development

[unix-history] / src / daytime.c

/* Copyright (c) 1979 Regents of the University of California */
/*
* Print out the time to a human desirable
* accuracy.
*
* Author: Kurt Shoens (UCB) July 11, 1978
*/

char *hourNames[] {
       "midnight",
       "one",
       "two",
       "three",
       "four",
       "five",
       "six",
       "seven",
       "eight",
       "nine",
       "ten",
       "eleven",
       "noon",
       0
};

char *quadrants[] {
       "o' clock",
       "quarter past",
       "half past",
       "quarter 'til",
       0
};

main(argc, argv)
       char **argv;
{
       int hour, *t, min, q, tv[2];
       char *hs, *qs;

       time(tv);
       t = localtime(tv);
       hour = t[2];
       min = t[1];
       if (argc >= 3) {
               hour = atoi(argv[1]);
               min = atoi(argv[2]);
       }
       q = (min+8) / 15;
       if (q >= 4) {
               q = 0;
               hour++;
       }
       if (q > 2)
               hour++;
       if (hour >= 24)
               hour = 0;
       if (hour > 12)
               hour =- 12;
       hs = hourNames[hour];
       qs = quadrants[q];
       if ((hour == 12 || hour == 0) && q == 0) {
               *hs = raise(*hs);
               printf("%s\n", hs);
               exit(0);
       }
       if (q == 0) {
               *hs = raise(*hs);
               printf("%s %s\n", hs, qs);
               exit(0);
       }
       *qs = raise(*qs);
       printf("%s %s\n", qs, hs);
       exit(0);
}

/*
* Return the upper case version of the possibly
* lower case letter.
*/

raise(c)
{
       if (c >= 'a' && c <= 'z')
               c =+ 'A' - 'a';
       return(c);
}