enc:arraySize

	  Pattern based restriction of the arraySizeBase list type. Used
    as the type of the arraySize attribute. Restricts asterisk ( * )
    to first list item only. Instances must contain at least an
    asterisk ( * ) or a nonNegativeInteger. May contain other 
    nonNegativeIntegers as subsequent list items.
	Valid instances include;
	
	  *
	  1
	  * 2
	  2 2
	  * 2 0