• From: Richard Tobin <richard@c...>
• To: Leigh Dodds <ldodds@i...>, xml-dev <xml-dev@i...>
• Date: Fri, 14 May 1999 15:05:28 +0100 (BST)

> 1. Contain #PCDATA, *OR*
> 2. an optional tag X followed by zero or more occurences of tag Y

Can't be done.  Content models that include #PCDATA and elements are
restricted to the form (#PCDATA|x|y|...)*.

> At the moment I've had to settle on (#PCDATA|X|Y)*

Yes, that's the best you can do.

If you want to do better, you will need to have two different element
types for the two cases.

-- Richard

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