use std::io;

pub fn read_std_in() -> String {
    let mut input = String::new();
    let mut done = false;
    while !done {
        match io::stdin().read_line(&mut input) {
            Ok(n) => {
                if n == 0 {
                    done = true;
                }
            },
            Err(error) => {
                println!("error: {}", error);
                done = true;
            },
        }
    }
    return String::from(input.trim());
}