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pub enum Value {
Byte(u8),
Double(u16),
}
impl std::fmt::Display for Value {
fn fmt(&self, f: &mut std::fmt::Formatter) -> Result<(), std::fmt::Error> {
match self {
Self::Byte(value) => write!(f, "0x{value:02x}"),
Self::Double(value) => write!(f, "0x{value:04x}"),
}
}
}
impl std::str::FromStr for Value {
type Err = ();
fn from_str(token: &str) -> Result<Self, Self::Err> {
match token.len() {
2 => match u8::from_str_radix(&token, 16) {
Ok(value) => Ok(Value::Byte(value)),
Err(_) => Err(()),
}
4 => match u16::from_str_radix(&token, 16) {
Ok(value) => Ok(Value::Double(value)),
Err(_) => Err(()),
}
_ => Err(()),
}
}
}
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