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K.R.Vaidyanathan wrote:
> Eg.. If element01 is present or element02 is present then element 03 should
> be present.
> If either of ele01 or ele02 are present then the other is required
This is a co-occurrence constraint, which generally speaking
XML Schema cannot handle. In RELAX NG (plug, plug), it's fairly
straightforward:
((element01 & element02?) | element02) & element03
--
John Cowan <jcowan@reutershealth.com> http://www.reutershealth.com
I amar prestar aen, han mathon ne nen, http://www.ccil.org/~cowan
han mathon ne chae, a han noston ne 'wilith. --Galadriel, _LOTR:FOTR_
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