dialoguer 0.12.0

A command line prompting library.
Documentation 
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use dialoguer::{theme::ColorfulTheme, Password};

fn main() {
    let password = Password::with_theme(&ColorfulTheme::default())
        .with_prompt("Password")
        .with_confirmation("Repeat password", "Error: the passwords don't match.")
        .validate_with(|input: &String| -> Result<(), &str> {
            if input.chars().count() > 3 {
                Ok(())
            } else {
                Err("Password must be longer than 3")
            }
        })
        .interact()
        .unwrap();

    println!(
        "Your password is {} characters long",
        password.chars().count()
    );
}