pub fn next_after(content: &str, pos: usize) -> Option<&str> {

    let ci = content[pos..].char_indices().find(|&(i, c)| c == ' ' || c == '\n');

    match ci {
        Some((i, ' ')) => {
            let val = &content[pos+i+1..];

            if val.len() > 0 {
                Some(val)
            } else { None }
        },
        _ => None
    }
}