func help() {
	println(`
    usage:
          whois ASN/CIDR/IPAddress
    Example:
          whois 8.8.8.8
          whois 8.0.0.0/8
          whois 577
	`)
}
help represents whois help
package whois
import (
	"github.com/mehrdadrad/mylg/ripe"
)
type whois interface {
	Set(r string)
	GetData() bool
	PrettyPrint()
}
var (
	w = map[string]whois{"asn": new(ripe.ASN), "prefix": new(ripe.Prefix)}
)
func Lookup(args string) {
	if ripe.IsASN(args) {
		w["asn"].Set(args)
		w["asn"].GetData()
		w["asn"].PrettyPrint()
	} else if ripe.IsIP(args) || ripe.IsPrefix(args) {
		w["prefix"].Set(args)
		w["prefix"].GetData()
		w["prefix"].PrettyPrint()
	} else {
		help()
	}
}