4.3BSD - /usr/src/usr.bin/calendar/calendar.c

   1: static  char *sccsid = "@(#)calendar.c	4.5 (Berkeley) 84/05/07";
   2: /* /usr/lib/calendar produces an egrep -f file
   3:    that will select today's and tomorrow's
   4:    calendar entries, with special weekend provisions
   5: 
   6:    used by calendar command
   7: */
   8: #include <sys/time.h>
   9: 
  10: #define DAY (3600*24L)
  11: 
  12: char *month[] = {
  13:     "[Jj]an",
  14:     "[Ff]eb",
  15:     "[Mm]ar",
  16:     "[Aa]pr",
  17:     "[Mm]ay",
  18:     "[Jj]un",
  19:     "[Jj]ul",
  20:     "[Aa]ug",
  21:     "[Ss]ep",
  22:     "[Oo]ct",
  23:     "[Nn]ov",
  24:     "[Dd]ec"
  25: };
  26: struct tm *localtime();
  27: 
  28: tprint(t)
  29: long t;
  30: {
  31:     struct tm *tm;
  32:     tm = localtime(&t);
  33:     printf("(^|[ 	(,;])((%s[^ \t]*[ \t]*|(0%d|%d)/)0*%d)([^0123456789]|$)\n",
  34:         month[tm->tm_mon],
  35:         tm->tm_mon + 1, tm->tm_mon + 1, tm->tm_mday);
  36:     printf("(^|[ 	(,;])((\\*[ \t]*)0*%d)([^0123456789]|$)\n",
  37:         tm->tm_mday);
  38: }
  39: 
  40: main()
  41: {
  42:     long t;
  43:     time(&t);
  44:     tprint(t);
  45:     switch(localtime(&t)->tm_wday) {
  46:     case 5:
  47:         t += DAY;
  48:         tprint(t);
  49:     case 6:
  50:         t += DAY;
  51:         tprint(t);
  52:     default:
  53:         t += DAY;
  54:         tprint(t);
  55:     }
  56: }

Defined functions

Defined variables

Defined macros