pub fn parse(input: &[u8]) -> Result<Rule, ParseError>Expand description
Unicode Plural Rule parser converts an
input string into a Rule AST.
A single Rule contains a Condition and optionally a set of
Samples.
A Condition can be then used by the test_condition to test
against PluralOperands, to find the appropriate PluralCategory.
Samples are useful for tooling to help translators understand examples of numbers
covered by the given Rule.
At runtime, only the Condition is used and for that, consider using parse_condition.
🚧 This code is considered unstable; it may change at any time, in breaking or non-breaking ways,
including in SemVer minor releases. In particular, the `DataProvider` implementations are only
guaranteed to match with this version's `*_unstable` providers. Use with caution.
§Examples
use icu::plurals::provider::rules::reference::parse;
let input = b"i = 0 or n = 1 @integer 0, 1 @decimal 0.0~1.0, 0.00~0.04";
assert!(parse(input).is_ok());