app/node_modules/speech-rule-engine/mjs/common/variables.js

export class Variables {
    static ensureLocale(loc, def) {
        if (!Variables.LOCALES.get(loc)) {
            console.error(`Locale ${loc} does not exist! Using` +
                ` ${Variables.LOCALES.get(def)} instead.`);
            return def;
        }
        return loc;
    }
}
Variables.VERSION = '4.1.2';
Variables.LOCALES = new Map([
    ['af', 'Africaans'],
    ['ca', 'Catalan'],
    ['da', 'Danish'],
    ['de', 'German'],
    ['en', 'English'],
    ['es', 'Spanish'],
    ['euro', 'Euro'],
    ['fr', 'French'],
    ['hi', 'Hindi'],
    ['it', 'Italian'],
    ['ko', 'Korean'],
    ['nb', 'Bokmål'],
    ['nn', 'Nynorsk'],
    ['sv', 'Swedish'],
    ['nemeth', 'Nemeth']
]);
Variables.mathjaxVersion = '4.0.0-beta.5';
Variables.url = 'https://cdn.jsdelivr.net/npm/speech-rule-engine@' +
    Variables.VERSION +
    '/lib/mathmaps';
Variables.WGXpath = 'https://cdn.jsdelivr.net/npm/wicked-good-xpath@1.3.0/dist/wgxpath.install.js';