String Representations of Ipv6Net allow more than 8 groups #50
Description
Consider the following program,
use ipnet::IpNet;
use std::net::IpAddr;
fn main() {
assert!("ffff:ffff:ffff:ffff:ffff:ffff::ffff:ffff/114".parse::<IpNet>().is_ok());
assert!("ffff:ffff:ffff:ffff:ffff:ffff::ffff:ffff".parse::<IpAddr>().is_ok());
}The second assertion fails while the first one holds. ffff:ffff:ffff:ffff:ffff:ffff::ffff:ffff contains 8 ffffs and 1 :: that represents at least one all-zero groups.