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RE: XML-Schema Help

• To: "'Dave Yancey'" <dyancey1@h...>
• Subject: RE: XML-Schema Help
• From: "Priscilla Walmsley" <priscilla@w...>
• Date: Fri, 16 Aug 2002 16:18:29 -0400
• Cc: <xml-dev@l...>
• Importance: Normal
• In-reply-to: <F2038BYXifWoqFXfyY0000299a4@h...>

Sorry David,

This is still non-deterministic because when the parser encounters a
description element, it does not know which branch of the content model
to take.  I think what you want is:


> <xs:complexType name="timeframeType">
    <xs:sequence>
	<xs:element ref="description" minOccurs="0"/>
> 	<xs:choice>
> 		<xs:sequence>
> 			<xs:element ref="earliestdate"/>
> 			<xs:element ref="latestdate" minOccurs="0"/>
> 		</xs:sequence>
> 		<xs:element ref="latestdate"/>
> 	</xs:choice>
    </xs:sequence>
> </xs:complexType>


Hope that helps,
Priscilla
-----------------------------------------------------
Priscilla Walmsley             priscilla@w...
Author, Definitive XML Schema     (Prentice Hall PTR)
----------------------------------------------------- 

> -----Original Message-----
> From: Dave Yancey [mailto:dyancey1@h...] 
> Sent: Friday, August 16, 2002 4:11 PM
> To: jeni@j...; JCHIUSANO@l...
> Cc: bryce@s...; xml-dev@l...
> Subject: Re:  XML-Schema Help
> 
> 
> Thanks to all who helped.
> 
> I apologize for not being clear on what I was looking for. I 
> wasn't positive 
> it could be done for I am new to Schemas.  But thanks to 
> everyones help 
> below is what I have and is doing exactly what I needed.
> 
> 
> 
> <xs:complexType name="timeframeType">
> 	<xs:choice>
> 		<xs:sequence>
> 			<xs:element ref="description" minOccurs="0"/>
> 			<xs:element ref="earliestdate"/>
> 			<xs:element ref="latestdate" minOccurs="0"/>
> 		</xs:sequence>
> 		<xs:sequence>
> 			<xs:element ref="description" minOccurs="0"/>
> 			<xs:element ref="earliestdate" minOccurs="0"/>
> 			<xs:element ref="latestdate"/>
> 		</xs:sequence>
> 	</xs:choice>
> </xs:complexType>
> 
> 
> ----
> David Yancey
> 
> 
> 
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• References:
  • Re: XML-Schema Help
    • From: "Dave Yancey" <dyancey1@h...>

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