public function active($pattern = null) { if (!is_null($pattern)) { $pattern = ltrim(preg_replace('/\\/\\*/', '(/.*)?', $pattern), '/'); if (preg_match("@^{$pattern}\\z@", Request::path())) { $this->activate(); } return $this; } $this->attributes['class'] = $this->builder->formatGroupClass(['class' => 'active'], $this->attributes); return $this; }