Function encoding8::ascii::is_printable

source · 
pub fn is_printable(b: u8) -> bool
Expand description

is_printable returns true if b is a printable (non-control) character

for b in 0..=255 {
    match b {
        0..=31| 127 => assert!(!is_printable(b), "{}", b as char),
        b => assert!(is_printable(b)),
    }
}