lithium\g11n\Locale::$_tags
Properties for locale tags.
Source
protected static $_tags = array(
'language' => array('formatter' => 'strtolower'),
'script' => array('formatter' => array('strtolower', 'ucfirst')),
'territory' => array('formatter' => 'strtoupper'),
'variant' => array('formatter' => 'strtoupper')
);