98 lines
4.0 KiB
TypeScript
98 lines
4.0 KiB
TypeScript
/*
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* Copyright (c) 2023 Huawei Technologies Co.,Ltd.
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*
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* openInula is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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*
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* http://license.coscl.org.cn/MulanPSL2
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*
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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import DateTimeFormatter from './fomatters/DateTimeFormatter';
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import NumberFormatter from './fomatters/NumberFormatter';
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import { DatePool, Locale, Locales, SelectPool } from '../types/types';
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import PluralFormatter from './fomatters/PluralFormatter';
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import SelectFormatter from './fomatters/SelectFormatter';
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import { FormatOptions, I18nCache, IntlMessageFormat } from '../types/interfaces';
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import cache from './cache/cache';
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/**
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* 默认格式化接口
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*/
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const generateFormatters = (
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locale: Locale | Locales,
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locales: Locales,
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localeConfig: Record<string, any> = { plurals: undefined },
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formatOptions: FormatOptions = {}, // 自定义格式对象
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cache: I18nCache
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): IntlMessageFormat => {
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locale = locales || locale;
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const { plurals } = localeConfig;
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/**
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* 样式函数 ，根据格式获取格式样式， 如货币百分比， 返回相应的格式的对象，如果没有设定格式，则返回一个空对象
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* @param formatOption
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*/
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const getStyleOption = formatOption => {
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if (typeof formatOption === 'string') {
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return formatOptions[formatOption] || { option: formatOption };
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} else {
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return formatOption;
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}
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};
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return {
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// 复数规则
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plural: (value: number, { offset = 0, ...rules }) => {
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const pluralFormatter = new PluralFormatter(
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locale,
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locales,
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value - offset,
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rules[value] || rules[(plurals as any)?.(value - offset)] || rules.other,
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cache
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);
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return pluralFormatter.replaceSymbol.bind(pluralFormatter);
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},
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selectordinal: (value: number, { offset = 0, ...rules }, useMemorize?) => {
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const message = rules[value] || rules[(plurals as any)?.(value - offset, true)] || rules.other;
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const pluralFormatter = new PluralFormatter(locale, locales, value - offset, message, useMemorize);
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return pluralFormatter.replaceSymbol.bind(pluralFormatter);
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},
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// 选择规则，如果规则对象中包含与该值相对应的属性，则返回该属性的值；否则，返回 "other" 属性的值。
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select: (value: SelectPool, formatRules) => {
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const selectFormatter = new SelectFormatter(locale, cache);
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return selectFormatter.getRule(value, formatRules);
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},
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// 用于将数字格式化为字符串，接受一个数字和一个格式化规则。它会根据规则返回格式化后的字符串。
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numberFormat: (value: number, formatOption) => {
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return new NumberFormatter(locales, getStyleOption(formatOption), cache).numberFormat(value);
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},
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// 用于将日期格式化为字符串，接受一个日期对象和一个格式化规则。它会根据规则返回格式化后的字符串。
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/**
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* eg: { year: 'numeric', month: 'long', day: 'numeric' } 是一个用于指定DateTimeFormatter如何将日期对象转换为字符串的参数。
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* \year: 'numeric' 表示年份的表示方式是数字形式（比如2023）。
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* month: 'long' 表示月份的表示方式是全名（比如January）。
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* day: 'numeric' 表示日期的表示方式是数字形式（比如1号）。
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* @param value
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* @param formatOption { year: 'numeric', month: 'long', day: 'numeric' }
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* @param useMemorize
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*/
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dateTimeFormat: (value: DatePool, formatOption) => {
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return new DateTimeFormatter(locales, getStyleOption(formatOption), cache).dateTimeFormat(value, formatOption);
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},
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// 用于处理未定义的值，接受一个值并直接返回它。
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undefined: value => value,
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};
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};
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export default generateFormatters;
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