FoundKey/webpack/module/rules/i18n.ts

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/**
* Replace i18n texts
*/
const StringReplacePlugin = require('string-replace-webpack-plugin');
export default (lang, locale) => ({
enforce: 'pre',
test: /\.(tag|js)$/,
exclude: /node_modules/,
loader: StringReplacePlugin.replace({
replacements: [
{
pattern: /%i18n:(.+?)%/g, replacement: (_, key) => {
let text = locale;
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// Check the key existance
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const error = key.split('.').some(k => {
if (text.hasOwnProperty(k)) {
text = text[k];
return false;
} else {
return true;
}
});
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if (error) {
console.warn(`key '${key}' not found in '${lang}'`);
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return key; // Fallback
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} else {
return text.replace(/'/g, '\\\'').replace(/"/g, '\\"');
}
}
}
]
})
});