str_utils/
is_ascii_lowercased.rs

1/// To extend `[u8]` and `str` to have `is_ascii_lowercased` method.
2pub trait IsAsciiLowercased {
3    /// Returns `true` if all characters in the string are not uppercase according to Unicode.
4    fn is_ascii_lowercased(&self) -> bool;
5}
6
7impl IsAsciiLowercased for [u8] {
8    #[inline]
9    fn is_ascii_lowercased(&self) -> bool {
10        self.iter().all(|c| !c.is_ascii_uppercase())
11    }
12}
13
14impl IsAsciiLowercased for str {
15    #[inline]
16    fn is_ascii_lowercased(&self) -> bool {
17        self.as_bytes().is_ascii_lowercased()
18    }
19}