struct Notif {
    app_name: String,
    replace_id: u32,
    ico: String,            //It's string, right?
    summary: String,
    body: String,
    //Actions
    //Hints
    expir_timeout: i32,
}

// Summary should be generally <= 40 chars, as per the specification.
fn truncate_summary(notif: &mut Notif) {
    if notif.summary.len() > 40 {
        notif.summary.truncate(39);
        notif.summary.push_str("…");
    }
}

fn main() {
    let mut not = Notif {
        app_name: "snot".to_string(),
        replace_id: 0,
        ico: "alert".to_string(),
        summary: "This is a very long suuummmaaarrryyy! Don't you believe me????".to_string(),
        body: "short body(hehe)".to_string(),
        expir_timeout: 0
    };
    truncate_summary(&mut not); //Limit the summary length
    
    println!("{}",not.summary);
}