struct Scanner { ptr: usize, length: usize, buf: Vec<u8>, small_cache: Vec<u8>, } #[allow(dead_code)] impl Scanner { fn new() -> Scanner { Scanner { ptr: 0, length: 0, buf: vec![0; 1024], small_cache: vec![0; 1024], } } fn load(&mut self) { use st</u8></u8>…