recursive elements

How can i declare/define recursive element declarations in XML schema or
DTD..
For example if i have a tag <while> then how can i declare in my DTD that a
<while> can contain any number of while tags.

<while>
	<while>
		........
		........
	</while>
</while>

Thanx

Received on Tuesday, 29 October 2002 07:11:47 UTC