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- #! /bin/sh
-
- : '@(#)yearistype.sh 7.4'
-
- case $#-$2 in
- 2-even) case $1 in
- *[24680]) exit 0 ;;
- *) exit 1 ;;
- esac ;;
- 2-nonpres) case $1 in
- *[02468][048]|*[13579][26]) exit 1 ;;
- *) exit 0 ;;
- esac ;;
- 2-odd) case $1 in
- *[13579]) exit 0 ;;
- *) exit 1 ;;
- esac ;;
- 2-uspres) case $1 in
- *[02468][048]|*[13579][26]) exit 0 ;;
- *) exit 1 ;;
- esac ;;
- 2-*) echo "$0: wild type - $2" >&2
- exit 1 ;;
- *) echo "$0: usage is $0 year type" >&2
- exit 1 ;;
- esac
-