Function icu::properties::sets::load_changes_when_lowercased

pub fn load_changes_when_lowercased(
    provider: &impl DataProvider<ChangesWhenLowercasedV1Marker>
) -> Result<CodePointSetData, PropertiesError>

Characters whose normalized forms are not stable under a toLowercase mapping

Example

use icu_properties::sets;

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

assert!(changes_when_lowercased.contains('Ⴔ'));  // U+10B4 GEORGIAN CAPITAL LETTER PHAR
assert!(!changes_when_lowercased.contains('ფ'));  // U+10E4 GEORGIAN LETTER PHAR