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use std::error;
use std::fmt;
use std::result;
use de::field;
#[derive(Clone,Eq,PartialEq,Ord,PartialOrd,Hash,Debug)]
pub enum Error {
UnexpectedEndOfInput(field::Field),
SubsectionTooLong,
ExpectedInteger(field::Field),
InvalidStartOfVersionNumber,
InvalidStartOfSecurityData,
InvalidCharacters,
UnsupportedFormat,
TrailingCharacters,
}
impl error::Error for Error {}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
&Error::UnexpectedEndOfInput(field) =>
write!(f, "unexpected end-of-input before {}", field),
&Error::SubsectionTooLong =>
write!(f, "subsection too long"),
&Error::ExpectedInteger(field) =>
write!(f, "the {} field is non-numeric", field),
&Error::InvalidStartOfVersionNumber =>
write!(f, "the version number field does not begin with the '>' marker"),
&Error::InvalidStartOfSecurityData =>
write!(f, "the security data section does not begin with the '^' marker"),
&Error::InvalidCharacters =>
write!(f, "non-ASCII characters"),
&Error::UnsupportedFormat =>
write!(f, "not an IATA BCBP Type M boarding pass"),
&Error::TrailingCharacters =>
write!(f, "input includes data after a valid boarding pass"),
}
}
}
pub type Result<T> = result::Result<T, Error>;