Function extender

pub const fn extender() -> CodePointSetDataBorrowed<'static>

Characters whose principal function is to extend the value of a preceding alphabetic character or to extend the shape of adjacent characters.

✨ Enabled with the compiled_data Cargo feature.

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Example

use icu::properties::sets;

let extender = sets::extender();

assert!(extender.contains('ヾ'));  // U+30FE KATAKANA VOICED ITERATION MARK
assert!(extender.contains('ー'));  // U+30FC KATAKANA-HIRAGANA PROLONGED SOUND MARK
assert!(!extender.contains('・'));  // U+30FB KATAKANA MIDDLE DOT