Creating a sliding window iterator of slices of chars from a String

Question

I am looking for the best way to go from String to Windows using the windows function provided for slices.

I understa

Answer 1

This solution will work for your purpose. (playground)

fn main() {
    let tst = String::from("abcdefg");
    let inter = tst.chars().collect::>();
    let mut windows = inter.windows(3);

    // prints ['a', 'b', 'c']
    println!("{:?}", windows.next().unwrap());
    // prints ['b', 'c', 'd']
    println!("{:?}", windows.next().unwrap());
    // etc...
    println!("{:?}", windows.next().unwrap());
}

String can iterate over its chars, but it's not a slice, so you have to collect it into a vec, which then coerces into a slice.