Function decode_hex_digit

arrow-json/src/reader/binary_array.rs:30–37

(byte: u8)

#[inline]
fn decode_hex_digit(byte: u8) -> Option<u8> {
    match byte {
        b'0'..=b'9' => Some(byte - b'0'),
        b'a'..=b'f' => Some(byte - b'a' + 10),
        b'A'..=b'F' => Some(byte - b'A' + 10),
        _ => None,
    }
}

fn invalid_hex_error_at(index: usize, byte: u8) -> ArrowError {
    ArrowError::JsonError(format!(