The URL regular expression cannot match an IPv6 address

[appAres]

inline Client::Client(const std::string &scheme_host_port,
const std::string &client_cert_path,
const std::string &client_key_path) {
const static std::regex re(
R"((?:([a-z]+)://)?(?:[([\d:]+)]|([^:/?#]+))(?::(\d+))?)");

The 're' is unable to match 'http://[ff06::c3]:3000' because '[([\d:]+)]' can only match sequences of digits.