Macro msg_line 

macro_rules! msg_line {
    () => { ... };
    ($($arg:tt)*) => { ... };
}

Use printfl! macro then call get_line function. This is useful if you want to get a string after you print some message at the same line.

use cmasfo_dev::*;

println!("What is your favorite color?");
let s = msg_line!("> ");

Then the terminal will be shown like folling:

What is your favorite color?
> orange