hexo/node_modules/hexo-i18n/lib/i18n.js

116 lines
2.6 KiB
JavaScript

'use strict';
const { vsprintf } = require('sprintf-js');
function i18n(options = {}) {
this.data = {};
this.languages = options.languages || ['default'];
if (!Array.isArray(this.languages)) {
this.languages = [this.languages];
}
}
i18n.prototype.get = function(languages) {
const { data } = this;
const result = {};
if (languages) {
if (!Array.isArray(languages)) {
languages = [languages];
}
} else {
languages = this.languages;
}
for (let i = 0, leni = languages.length; i < leni; i++) {
const lang = languages[i];
const langData = data[lang];
if (!langData) continue;
const keys = Object.keys(langData);
for (let j = 0, lenj = keys.length; j < lenj; j++) {
const key = keys[j];
if (!Object.prototype.hasOwnProperty.call(result, key)) result[key] = langData[key];
}
}
return result;
};
i18n.prototype.set = function(lang, data) {
if (typeof lang !== 'string') throw new TypeError('lang must be a string!');
if (typeof data !== 'object') throw new TypeError('data is required!');
this.data[lang] = flattenObject(data);
return this;
};
i18n.prototype.remove = function(lang) {
if (typeof lang !== 'string') throw new TypeError('lang must be a string!');
delete this.data[lang];
return this;
};
i18n.prototype.list = function() {
return Object.keys(this.data);
};
function flattenObject(data, obj = {}, parent = '') {
const keys = Object.keys(data);
for (let i = 0, len = keys.length; i < len; i++) {
const key = keys[i];
const item = data[key];
if (typeof item === 'object') {
flattenObject(item, obj, parent + key + '.');
} else {
obj[parent + key] = item;
}
}
return obj;
}
i18n.prototype.__ = function(lang) {
const data = this.get(lang);
return (key, ...args) => {
if (!key) return '';
const str = data[key] || key;
return vsprintf(str, args);
};
};
i18n.prototype._p = function(lang) {
const data = this.get(lang);
return (key, ...args) => {
if (!key) return '';
const number = args.length ? +args[0] : 0;
let str = key;
if (!number && Object.prototype.hasOwnProperty.call(data, key + '.zero')) {
str = data[key + '.zero'];
} else if (number === 1 && Object.prototype.hasOwnProperty.call(data, key + '.one')) {
str = data[key + '.one'];
} else if (Object.prototype.hasOwnProperty.call(data, key + '.other')) {
str = data[key + '.other'];
} else if (Object.prototype.hasOwnProperty.call(data, key)) {
str = data[key];
}
return vsprintf(str, args);
};
};
module.exports = i18n;