zic.tproj/datfiles/yearistype.sh

   1 #! /bin/sh
   2 #       $OpenBSD: yearistype.sh,v 1.3 1997/01/14 04:36:58 millert Exp $
   3
   4 : '@(#)yearistype.sh    7.4'
   5
   6 case $#-$2 in
   7         2-even)         case $1 in
   8                                 *[24680])                       exit 0 ;;
   9                                 *)                              exit 1 ;;
  10                         esac ;;
  11         2-nonpres)      case $1 in
  12                                 *[02468][048]|*[13579][26])     exit 1 ;;
  13                                 *)                              exit 0 ;;
  14                         esac ;;
  15         2-odd)          case $1 in
  16                                 *[13579])                       exit 0 ;;
  17                                 *)                              exit 1 ;;
  18                         esac ;;
  19         2-uspres)       case $1 in
  20                                 *[02468][048]|*[13579][26])     exit 0 ;;
  21                                 *)                              exit 1 ;;
  22                         esac ;;
  23         2-*)            echo "$0: wild type - $2" >&2
  24                         exit 1 ;;
  25         *)              echo "$0: usage is $0 year type" >&2
  26                         exit 1 ;;
  27 esac