icu_properties::sets

Function pattern_syntax

Source 
pub const fn pattern_syntax() -> CodePointSetDataBorrowed<'static>
Expand description

Characters used as syntax in patterns (such as regular expressions). See Unicode Standard Annex #31 for more details.

✨ Enabled with the compiled_data Cargo feature.

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§Example

use icu::properties::sets;

let pattern_syntax = sets::pattern_syntax();

assert!(pattern_syntax.contains('{'));
assert!(pattern_syntax.contains('⇒'));  // U+21D2 RIGHTWARDS DOUBLE ARROW
assert!(!pattern_syntax.contains('0'));