Mapping a single character onto a Flux Monoid

character.rs

impl From<u8> for Flux {
    fn from(other: u8) -> Self {
        if other.is_ascii_whitespace() {
            // A line-feed is considered an ASCII whitespace character by `is_ascii_whitespace`.
            let lines = if other == ('\n' as u8) { 1 } else { 0 };
            Flux::new(CharType::IsSpace, 0, lines, CharType::IsSpace)
        } else {
            Flux::new(CharType::NotSpace, 1, 0, CharType::NotSpace)
        }
    }
}