/**
* Returns a HTML <a> for a given filename in the 'content' directory
*
* @see \Zepto\Helper::link_for()
* @param string $file_name
* @return string|null
* @codeCoverageIgnore
*/
public function link_for($file_name)
{
$zepto = \Zepto\Zepto::instance();
return $zepto->app['helper']->link_for($file_name);
}
/**
* Retrieves current instance, if one exists, otherwise returns null
*
* @return \Zepto\Zepto|null
* @static
*/
public static function instance()
{
if (isset(static::$instance) === FALSE) {
Zepto::kill();
return null;
}
return static::$instance;
}
