# File lib/ipaddress/ipv6.rb, line 89 def initialize(str) ip, netmask = str.split("/") if str =~ /:.+\./ raise ArgumentError, "Please use #{self.class}::Mapped for IPv4 mapped addresses" end if IPAddress.valid_ipv6?(ip) @groups = self.class.groups(ip) @address = IN6FORMAT % @groups @compressed = compress_address else raise ArgumentError, "Invalid IP #{ip.inspect}" end @prefix = Prefix128.new(netmask ? netmask : 128) end