source: node_modules/prismjs/plugins/highlight-keywords/prism-highlight-keywords.js

(function () {

        if (typeof Prism === 'undefined') {
                return;
        }

        Prism.hooks.add('wrap', function (env) {
                if (env.type !== 'keyword') {
                        return;
                }
                env.classes.push('keyword-' + env.content);
        });

}());