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Is this constraint expressible in XML Schema?

• To: XML Developers List <xml-dev@l...>
• Subject: Is this constraint expressible in XML Schema?
• From: Kenneth Stephen <marvin.the.paranoid@g...>
• Date: Tue, 8 Feb 2005 16:13:18 -0600
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• Reply-to: Kenneth Stephen <marvin.the.paranoid@g...>

Hi,

    I want to express the following constraint using XML schema :

    An unbounded sequence of (A or B) elements which can contain at
most n instances of A.

    To illiustrate, I set n = 2. In that case, BABBBBBABBB is valid.
So is AABB .  BABABA is not valid because there are more than 2 A
elements in it.

Thanks,
Kenneth

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