IP is not recognized in RTSP url

[0xd34d10cc]

I would expect the following assert to pass:

    assert_eq!(
        Url::parse("http://1.35.33.49").unwrap().host(),
        Url::parse("rtsp://1.35.33.49").unwrap().host()
    )

but it does not:

assertion failed: `(left == right)`
  left: `Some(Ipv4(1.35.33.49))`,
 right: `Some(Domain("1.35.33.49"))`', src/main.rs:4:5

[djc]

The URL Standard has special handling for several URL schemes (one of which is http) that includes parsing the host address to check for IPv4 addresses, but this is not used for unrecognized schemes. Why is the equivalence important to your use case?

[0xd34d10cc]

It's not really important . It's just inconvenient. I have to write code like this:

match host {
    Host::Domain(name) => {
        if let Ok(ip) = name.parse::<IpAddr>() {
            ip
        } else {
            resolve(name)
        }
    }
    Host::Ipv4(ip) => IpAddr::V4(ip),
    Host::Ipv6(ip) => IpAddr::V6(ip),
}

to gen ip address from url.

I didn't know that this was the intended behavior, it looked like a bug to me. Since that's how the URL Standard requires the parser to work the issue could be closed.

[tmccombs]

The URL Standard has special handling for several URL schemes (one of which is http) that includes parsing the host address to check for IPv4 addresses, but this is not used for unrecognized schemes. Why is the equivalence important to your use case?

What is the motivation of that? I can't think of any scheme, except maybe "file", where the host can't be an ip address.

[djc]

See here: #577 (comment).