37 lines
1.5 KiB
JavaScript
37 lines
1.5 KiB
JavaScript
import fs from 'node:fs/promises';
|
|
import path from 'node:path';
|
|
import vm from 'node:vm';
|
|
|
|
const root = path.resolve(import.meta.dirname, '..');
|
|
|
|
export async function loadI18n(context) {
|
|
for (const name of ['texts-de', 'i18n']) {
|
|
const filename = path.join(root, `public/js/${name}.js`);
|
|
vm.runInNewContext(await fs.readFile(filename, 'utf8'), context, { filename });
|
|
}
|
|
return context.Wegwichtel.I18n;
|
|
}
|
|
|
|
const escapeText = value => value.replaceAll('&', '&').replaceAll('<', '<').replaceAll('>', '>');
|
|
|
|
export async function localizedHtml(source) {
|
|
const i18n = await loadI18n({});
|
|
let result = source.replace(/(<[^>]+\bdata-i18n="([^"]+)"[^>]*>)([^<]*)(<\/)/g,
|
|
(_match, opening, key, _text, closing) => opening + escapeText(i18n.t(key)) + closing);
|
|
result = result.replace(/<[^>]+>/g, opening => {
|
|
let translated = opening;
|
|
for (const attribute of ['title', 'aria-label', 'placeholder', 'alt']) {
|
|
const key = new RegExp(`data-i18n-${attribute}="([^"]+)"`).exec(opening)?.[1];
|
|
if (key) translated = translated.replace(new RegExp(`\\b${attribute}="[^"]*"`), `${attribute}="${escapeText(i18n.t(key)).replaceAll('"', '"')}"`);
|
|
}
|
|
return translated;
|
|
});
|
|
return result.replace(/\sdata-i18n(?:-[\w-]+)?="[^"]*"/g, '');
|
|
}
|
|
|
|
export async function readAppFile(relativePath) {
|
|
const source = await fs.readFile(path.join(root, relativePath), 'utf8');
|
|
if (relativePath === 'public/index.html') return localizedHtml(source);
|
|
return source;
|
|
}
|