Crate properties 

Definitions of Unicode Properties and APIs for retrieving property data in an appropriate data structure.

This module is published as its own crate (icu_properties) and as part of the icu crate. See the latter for more details on the ICU4X project.

APIs that return a CodePointSetData exist for binary properties and certain enumerated properties.

APIs that return a CodePointMapData exist for certain enumerated properties.

Examples

Property data as CodePointSetDatas

use icu::properties::{CodePointSetData, CodePointMapData};
use icu::properties::props::{GeneralCategory, Emoji};

// A binary property as a `CodePointSetData`

assert!(CodePointSetData::new::<Emoji>().contains('🎃')); // U+1F383 JACK-O-LANTERN
assert!(!CodePointSetData::new::<Emoji>().contains('木')); // U+6728

// An individual enumerated property value as a `CodePointSetData`

let line_sep_data = CodePointMapData::<GeneralCategory>::new()
    .get_set_for_value(GeneralCategory::LineSeparator);
let line_sep = line_sep_data.as_borrowed();

assert!(line_sep.contains('\u{2028}'));
assert!(!line_sep.contains('\u{2029}'));

Property data as CodePointMapDatas

use icu::properties::CodePointMapData;
use icu::properties::props::Script;

assert_eq!(CodePointMapData::<Script>::new().get('🎃'), Script::Common); // U+1F383 JACK-O-LANTERN
assert_eq!(CodePointMapData::<Script>::new().get('木'), Script::Han); // U+6728

Modules

props

This module defines all available properties.

provider

🚧 [Unstable] Data provider struct definitions for this ICU4X component.

script

Data and APIs for supporting Script_Extensions property values in an efficient structure.

Structs

CodePointMapData

A wrapper around code point map data.

CodePointMapDataBorrowed

A borrowed wrapper around code point set data, returned by CodePointSetData::as_borrowed(). More efficient to query.

CodePointSetData

A set of Unicode code points. Access its data via the borrowed version, CodePointSetDataBorrowed.

CodePointSetDataBorrowed

A borrowed wrapper around code point set data, returned by CodePointSetData::as_borrowed(). More efficient to query.

EmojiSetData

A wrapper around UnicodeSet data (characters and strings)

EmojiSetDataBorrowed

A borrowed wrapper around code point set data, returned by EmojiSetData::as_borrowed(). More efficient to query.

PropertyNamesLong

A struct capable of looking up a property name from a value Access its data by calling Self::as_borrowed() and using the methods on PropertyNamesLongBorrowed.

PropertyNamesLongBorrowed

A borrowed wrapper around property value name-to-enum data, returned by PropertyNamesLong::as_borrowed(). More efficient to query.

PropertyNamesShort

A struct capable of looking up a property name from a value Access its data by calling Self::as_borrowed() and using the methods on PropertyNamesShortBorrowed.

PropertyNamesShortBorrowed

A borrowed wrapper around property value name-to-enum data, returned by PropertyNamesShort::as_borrowed(). More efficient to query.

PropertyParser

A struct capable of looking up a property value from a string name. Access its data by calling Self::as_borrowed() and using the methods on PropertyParserBorrowed.

PropertyParserBorrowed

A borrowed wrapper around property value name-to-enum data, returned by PropertyParser::as_borrowed(). More efficient to query.