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Re: XML Schema for unordered elements

• To: mhleung@n...
• Subject: Re: XML Schema for unordered elements
• From: Bob Foster <bob@o...>
• Date: Mon, 11 Apr 2005 14:42:47 -0700
• Cc: xml-dev@l...
• In-reply-to: <1113207298.425a320271e0d@w...>
• References: <1113207298.425a320271e0d@w...>
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Yes. Is this a homework problem?

Bob Foster

mhleung@n... wrote:
> Hi,
> 
> I would like to know whether it's possible to define an XML Schema for the 
> following XML document instance:
> 
> <root>
>  <a/><b/><c/>
>  <k/><k/><k/>
> </root>
> 
> with the following constraints:
> 1) <a/>, <b/>, <c/> and <k/> can appear in any order
> 2) <a/>, <b/> and <c/> can appear at most once under <root>
> 3) <k/> must appear at least once.
> 
> So the following, as well as the example above is also valid:
> 
> <root>
>   <a/><k/><b/><k/><k/><c/>
> </root>
> 
> Many thanks for your help in advance
> Michael.
> 
> 
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• References:
  • XML Schema for unordered elements
    • From: mhleung@n...

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