Function icu::properties::sets::load_changes_when_titlecased

pub fn load_changes_when_titlecased(
    provider: &impl DataProvider<ChangesWhenTitlecasedV1Marker>
) -> Result<CodePointSetData, PropertiesError>

Characters whose normalized forms are not stable under a toTitlecase mapping

Example

use icu_properties::sets;

let data =
    sets::load_changes_when_titlecased(&icu_testdata::unstable())
        .expect("The data should be valid");
let changes_when_titlecased = data.as_borrowed();

assert!(changes_when_titlecased.contains('æ'));  // U+00E6 LATIN SMALL LETTER AE
assert!(!changes_when_titlecased.contains('Æ'));  // U+00E6 LATIN CAPITAL LETTER AE