pub fn as_char(self) -> Option<char> {
        // This is only used in the `regex!` macro because it expands char
        // classes into `match` expressions (instead of binary search).
        char::from_u32(self.0)
    }
/// Converts the character to a real primitive `char`.
///
/// If the character is absent, then `None` is returned.
Converts the character to a real primitive `char`.
If the character is absent, then `None` is returned.
Converts the character to a real primitive ` char ` . If the character is absent then ` None ` is returned .
pub fn as_char(self) -> Option<char> {
        // This is only used in the `regex!` macro because it expands char
        // classes into `match` expressions (instead of binary search).
        char::from_u32(self.0)
    }
pub fn as_char ( self ) -> Option < char > { // This is only used in the `regex!` macro because it expands char // classes into `match` expressions (instead of binary search). char :: from_u32 ( self . 0 ) }
Converts the character to a real primitive `char`.
Converts the character to a real primitive ` char ` .
self
self