pub(crate) fn is_case_ignorable(c: char) -> bool {
    CASE_IGNORABLE
        .binary_search_by(|&cpr| cpr.compare(c as u32))
        .is_ok()
}
/// Return whether c has the 'Case_Ignorable' Unicode property.
Return whether c has the 'Case_Ignorable' Unicode property.
Return whether c has the ' Case_Ignorable ' Unicode property .
pub(crate) fn is_case_ignorable(c: char) -> bool {
    CASE_IGNORABLE
        .binary_search_by(|&cpr| cpr.compare(c as u32))
        .is_ok()
}
pub ( crate ) fn is_case_ignorable ( c : char ) -> bool { CASE_IGNORABLE . binary_search_by ( | & cpr | cpr . compare ( c as u32 ) ) . is_ok ( ) }
Return whether c has the 'Case_Ignorable' Unicode property.
Return whether c has the ' Case_Ignorable ' Unicode property .
c
char