pub fn to_str(url: &Url) -> ~str
Format a url as a string
url - a url.
a str that contains the formatted url. Note that this will usually
be an inverse of from_str but might strip out unneeded separators.
for example, "http://somehost.com?", when parsed and formatted, will
result in just "http://somehost.com".
Prefix searches with a type followed by a colon (e.g.
fn:) to restrict the search to a given type.
Accepted types are: fn, mod,
struct (or str), enum,
trait, typedef (or
tdef).