#Intl.PluralRules S4

#Intl.PluralRules API 规范 [草稿]

#状态

当前阶段：

• 第 4 阶段

实现进度：

• Polyfill: https://github.com/eemeli/IntlPluralRules

解释器：

• https://github.com/tc39/proposal-intl-plural-rules/blob/master/PROPOSAL.md

规范文本：

• https://rawgit.com/caridy/intl-plural-rules-spec/master/index.html

#作者

• Caridy Patiño (@caridy)
• Eric Ferraiuolo (@ericf)
• Alex Sexton (@SlexAxton)

#审阅者

• Daniel Ehrenberg (@littledan)
• Stefan Penner (@stefanpenner)

#参考信息

本提案基于 LDML 规范，C.11 语言复数规则：

• http://unicode.org/reports/tr35/tr35-numbers.html#Language_Plural_Rules

#先前实现

• Java: Class PluralRules

#用法

let o = new Intl.PluralRules("en", {
    type: "cardinal" // default type
});
console.log(o.select(0)); // "other"
console.log(o.select(1)); // "one"
console.log(o.select(2)); // "other"

还包含对序数词的支持：

let o = new Intl.PluralRules("en", {
    type: "ordinal"
});
console.log(o.select(21)); // "one"
console.log(o.select(22)); // "two"
console.log(o.select(23)); // "few"
console.log(o.select(24)); // "other"

#待办事项

• new Intl.PluralRules("en").format(1.02); 应该产生 "other"
• 对 Intl.PluralRules 进行命名讨论
• 规范 pluralCategories 的解析

#渲染规范

npm install
npm run build
open index.html

#反向链接

• https://github.com/tc39/ecma402/issues/34
• https://groups.google.com/forum/#!topic/javascript-globalization/3nFDf5al5hU