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/// This enumerates the various places where an error might occur parsing a
/// URI.
#[derive(Debug, Clone, Copy, PartialEq)]
pub enum Context {
/// This is the fragment of the URI, such as `#baz` in
/// `http://www.example.com/foo?bar#baz`.
Fragment,
/// This is the host name of the URI, such as `www.example.com` in
/// `http://www.example.com/foo?bar#baz`.
Host,
/// This is the IPv4 portion of the IPv6 host name in the URI, such as
/// `1.2.3.4` in `http://[::ffff:1.2.3.4]/foo?bar#baz`.
Ipv4Address,
/// This is the IPv6 host name in the URI, such as
/// `::ffff:1.2.3.4` in `http://[::ffff:1.2.3.4]/foo?bar#baz`.
Ipv6Address,
/// This is the `IPvFuture` host name in the URI, such as
/// `v7.aB` in `http://[v7.aB]/foo?bar#baz`.
IpvFuture,
/// This is the path of the URI, such as `/foo` in
/// `http://www.example.com/foo?bar#baz`.
Path,
/// This is the query of the URI, such as `?bar` in
/// `http://www.example.com/foo?bar#baz`.
Query,
/// This is the scheme of the URI, such as `http` in
/// `http://www.example.com/foo?bar#baz`.
Scheme,
/// This is the scheme of the URI, such as `nobody` in
/// `http://nobody@www.example.com/foo?bar#baz`.
Userinfo,
}
impl std::fmt::Display for Context {
fn fmt(
&self,
f: &mut std::fmt::Formatter<'_>,
) -> std::fmt::Result {
match self {
Context::Fragment => write!(f, "fragment"),
Context::Host => write!(f, "host"),
Context::Ipv4Address => write!(f, "IPv4 address"),
Context::Ipv6Address => write!(f, "IPv6 address"),
Context::IpvFuture => write!(f, "IPvFuture"),
Context::Path => write!(f, "path"),
Context::Query => write!(f, "query"),
Context::Scheme => write!(f, "scheme"),
Context::Userinfo => write!(f, "user info"),
}
}
}
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