Parse an authority.
Defined in header
result< authority_view > parse_authority( string_view s);
This function parses a string according to the authority grammar below, and
authority_view referencing the string.
Ownership of the string is not transferred; the caller is responsible for
ensuring that the lifetime of the string extends until the view is no longer
authority = [ userinfo "@" ] host [ ":" port ] userinfo = user [ ":" [ password ] ] user = *( unreserved / pct-encoded / sub-delims ) password = *( unreserved / pct-encoded / sub-delims / ":" ) host = IP-literal / IPv4address / reg-name port = *DIGIT
A view to the parsed authority
The string to parse