## Full example

    https://john.doe@www.example.com:123/forum/questions/?tag=networking&order=newest#top
    https://example.com/path/resource.txt#fragment
    ldap://[2001:db8::7]/c=GB?objectClass?one
    mailto:John.Doe@example.com
    news:comp.infosystems.www.servers.unix
    tel:+1-816-555-1212
    telnet://192.0.2.16:80/
    urn:oasis:names:specification:docbook:dtd:xml:4.1.2
    //example.com/path/resource.txt
    /path/resource.txt
    path/resource.txt