share/zoneinfo/yearistype.sh

   1 #! /bin/sh
   2 #
   3 #       $NetBSD: yearistype.sh,v 1.6 2006/09/23 17:34:36 kleink Exp $
   4 #
   5
   6 : 'This file is in the public domain, so clarified as of'
   7 : '2006-07-17 by Arthur David Olson.'
   8
   9 : '@(#)yearistype.sh    8.2'
  10
  11 case $#-$1 in
  12         2-|2-0*|2-*[!0-9]*)
  13                 echo "$0: wild year - $1" >&2
  14                 exit 1 ;;
  15 esac
  16
  17 case $#-$2 in
  18         2-even)
  19                 case $1 in
  20                         *[24680])                       exit 0 ;;
  21                         *)                              exit 1 ;;
  22                 esac ;;
  23         2-nonpres|2-nonuspres)
  24                 case $1 in
  25                         *[02468][048]|*[13579][26])     exit 1 ;;
  26                         *)                              exit 0 ;;
  27                 esac ;;
  28         2-odd)
  29                 case $1 in
  30                         *[13579])                       exit 0 ;;
  31                         *)                              exit 1 ;;
  32                 esac ;;
  33         2-uspres)
  34                 case $1 in
  35                         *[02468][048]|*[13579][26])     exit 0 ;;
  36                         *)                              exit 1 ;;
  37                 esac ;;
  38         2-*)
  39                 echo "$0: wild type - $2" >&2 ;;
  40 esac
  41
  42 echo "$0: usage is $0 year even|odd|uspres|nonpres|nonuspres" >&2
  43 exit 1