share/zoneinfo/yearistype.sh

   1 #! /bin/sh
   2
   3 # $FreeBSD: src/share/zoneinfo/yearistype.sh,v 1.1.2.3.8.1 2000/10/25 19:44:09 wollman Exp $
   4 # $DragonFly: src/share/zoneinfo/yearistype.sh,v 1.4 2006/10/08 08:56:37 swildner Exp $
   5 : 'This file is in the public domain, so clarified as of'
   6 : '2006-07-17 by Arthur David Olson.'
   7
   8 : '@(#)yearistype.sh    8.2'
   9
  10 case $#-$1 in
  11         2-|2-0*|2-*[!0-9]*)
  12                 echo "$0: wild year - $1" >&2
  13                 exit 1 ;;
  14 esac
  15
  16 case $#-$2 in
  17         2-even)
  18                 case $1 in
  19                         *[24680])                       exit 0 ;;
  20                         *)                              exit 1 ;;
  21                 esac ;;
  22         2-nonpres|2-nonuspres)
  23                 case $1 in
  24                         *[02468][048]|*[13579][26])     exit 1 ;;
  25                         *)                              exit 0 ;;
  26                 esac ;;
  27         2-odd)
  28                 case $1 in
  29                         *[13579])                       exit 0 ;;
  30                         *)                              exit 1 ;;
  31                 esac ;;
  32         2-uspres)
  33                 case $1 in
  34                         *[02468][048]|*[13579][26])     exit 0 ;;
  35                         *)                              exit 1 ;;
  36                 esac ;;
  37         2-*)
  38                 echo "$0: wild type - $2" >&2 ;;
  39 esac
  40
  41 echo "$0: usage is $0 year even|odd|uspres|nonpres|nonuspres" >&2
  42 exit 1