pub enum Fail_ {
ArgumentMissing(~str),
UnrecognizedOption(~str),
OptionMissing(~str),
OptionDuplicated(~str),
UnexpectedArgument(~str),
}The type returned when the command line does not conform to the
expected format. Pass this value to
impl Fail_fn to_err_msg(self) -> ~strConvert a Fail_ enum into an error string.
impl std::clone::Clone for Fail_fn clone(&self) -> Fail_impl std::cmp::Eq for Fail_impl std::to_str::ToStr for Fail_fn to_str(&self) -> ~str
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).