feat(@formatjs/intl-pluralrules): support notation/compactDisplay (c/e operands)#5914
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…e operands) (#5914) ### TL;DR Add support for compact notation in `Intl.PluralRules` with the `c/e` operand for languages that use exponent-based plural rules. ### What changed? - Added `notation` and `compactDisplay` options to `Intl.PluralRules` to support compact notation - Updated the `GetOperands` function to include the `CompactExponent` operand - Modified the plural rules compiler to pass the exponent parameter to plural functions - Added support for calculating compact exponents using NumberFormat locale data - Updated type definitions and interfaces to support the new parameters - Added tests for compact notation with various locales ### How to test? 1. Create a PluralRules instance with compact notation: ```js const pr = new Intl.PluralRules('fr', {notation: 'compact'}); pr.select(1000000); // Should return 'many' for French ``` 2. Test with different locales that use compact notation rules: ```js const locales = ['ca', 'es', 'fr', 'it', 'pt', 'pt-PT']; for (const locale of locales) { const pr = new Intl.PluralRules(locale, {notation: 'compact'}); console.log(locale, pr.select(1000000)); } ``` 3. Compare compact vs standard notation: ```js const prCompact = new Intl.PluralRules('fr', {notation: 'compact'}); const prStandard = new Intl.PluralRules('fr'); console.log(prCompact.select(1200000), prStandard.select(1200000)); ``` ### Why make this change? Several languages (including French, Spanish, Italian, Portuguese, and Catalan) have plural rules that depend on the compact notation exponent. For example, in French, numbers formatted in millions use a different plural form than the same numbers in standard notation. This change enables correct plural selection for compact-formatted numbers in these languages, which is essential for proper localization of applications that use compact number formatting alongside pluralization.
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TL;DR
Add support for compact notation in
Intl.PluralRuleswith thec/eoperand for languages that use exponent-based plural rules.What changed?
notationandcompactDisplayoptions toIntl.PluralRulesto support compact notationGetOperandsfunction to include theCompactExponentoperandHow to test?
Why make this change?
Several languages (including French, Spanish, Italian, Portuguese, and Catalan) have plural rules that depend on the compact notation exponent. For example, in French, numbers formatted in millions use a different plural form than the same numbers in standard notation.
This change enables correct plural selection for compact-formatted numbers in these languages, which is essential for proper localization of applications that use compact number formatting alongside pluralization.