protected function addNumber( \Aimeos\MW\View\Iface $view, \Aimeos\MW\Config\Iface $config, $locale )
	{
		$pattern = $config->get( 'client/html/common/format/pattern' );

		$helper = new \Aimeos\MW\View\Helper\Number\Locale( $view, $locale, $pattern );
		$view->addHelper( 'number', $helper );

		return $view;
	}