pub fn stdin() -> @Reader
Gives a Reader that allows you to read values from standard input.
let stdin = std::io::stdin();
let line = stdin.read_line();
std::io::print(line);
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).