nl_tokens: Filter through an array and remove empty item as defined in { @link Ext#isEmpty Ext . isEmpty }
pl_tokens: function ( array ) { var results = [ ] , i = 0 , ln = array . length , item ; for ( ; i < ln ; i ++ ) { item = array [ i ] ; if ( ! Ext . isEmpty ( <mask> ) ) { results . push ( item ) ; } } return results ; }