@eternalheart/ngx-file-preview
Version:
A powerful Angular file preview component library supporting multiple file formats including images, videos, PDFs, Office documents, text files and more.
57 lines • 5.81 kB
JavaScript
import ZH from "../../assets/i18n/zh.json";
import EN from "../../assets/i18n/en.json";
const LangMapping = {
'zh': ZH,
};
export const I18nUtils = {
/**
* 获取语言包
* @param locale
*/
get(locale) {
return new I18nParser(locale || 'zh');
},
/**
* 注册语言包
*/
register(locale, langJson) {
LangMapping[locale] = langJson;
}
};
/**
* 注册使用示例
*/
I18nUtils.register('en', EN);
/**
* 单例模式优化语言包的获取 单个语言只会创建一个语言转化实例
*/
class I18nParser {
static { this.InstanceMap = {}; }
constructor(locale) {
this.locale = 'zh';
this.locale = locale;
if (I18nParser.InstanceMap[locale])
return I18nParser.InstanceMap[locale];
I18nParser.InstanceMap[locale] = this;
}
// 翻译
t(key, ...args) {
const translated = I18nParser.getValue(LangMapping[this.locale], key);
if (args.length > 0)
return translated.replace(/\${(\d+)}/g, (match, index) => args[index]);
if (translated)
return translated;
return key;
}
// 获取深层值
static getValue(data, prop) {
let ps = Array.isArray(prop) ? prop : prop.split('.');
try {
return ps.length == 1 ? data[ps.shift()] : I18nParser.getValue(data[ps.shift()], ps);
}
catch (e) {
return undefined;
}
}
}
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