63 lines
1.7 KiB
JavaScript
63 lines
1.7 KiB
JavaScript
// TODO: when node supports 'for await' we can remove babel-polyfill
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// and use 'fluent' instead of 'fluent/compat' (also below near line 42)
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require('babel-polyfill');
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const { MessageContext } = require('fluent/compat');
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const fs = require('fs');
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function toJSON(map) {
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return JSON.stringify(Array.from(map));
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}
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function merge(m1, m2) {
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const result = new Map(m1);
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for (const [k, v] of m2) {
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result.set(k, v);
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}
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return result;
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}
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module.exports = function(source) {
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const localeExp = /([^/]+)\/[^/]+\.ftl$/;
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const result = localeExp.exec(this.resourcePath);
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const locale = result && result[1];
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if (!locale) {
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throw new Error(`couldn't find locale in: ${this.resourcePath}`);
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}
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// load default language and "merge" contexts
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// TODO: make this configurable
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const en_ftl = fs.readFileSync(
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require.resolve('../public/locales/en-US/send.ftl'),
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'utf8'
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);
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const en = new MessageContext('en-US');
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en.addMessages(en_ftl);
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// pre-parse the ftl
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const context = new MessageContext(locale);
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context.addMessages(source);
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const merged = merge(en._messages, context._messages);
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return `
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module.exports = \`
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if (typeof window === 'undefined') {
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require('babel-polyfill');
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var fluent = require('fluent/compat');
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}
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(function () {
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var ctx = new fluent.MessageContext('${locale}', {useIsolating: false});
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ctx._messages = new Map(${toJSON(merged)});
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function translate(id, data) {
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var msg = ctx.getMessage(id);
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if (typeof(msg) !== 'string' && !msg.val && msg.attrs) {
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msg = msg.attrs.title || msg.attrs.alt
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}
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return ctx.format(msg, data);
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}
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if (typeof window === 'undefined') {
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module.exports = translate;
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}
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else {
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window.translate = translate;
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}
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})();
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\``;
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};
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