consider this:
<xsd:complexType name="timeframeType">
<xsd:choice>
<xsd:group ref="both"/>
<xsd:group ref="oneorother"/>
</xsd:choice>
</xs:complexType>
<xsd:group name="both">
<xsd:sequence>
<xsd:element ref="earliestdate"/>
<xsd:element ref="latestdate"/>
</xsd:sequence>
</xsd:group>
<xsd:group name="oneorother">
<xsd:choice>
<xsd:element ref="earliestdate"/>
<xsd:element ref="latestdate"/>
</xsd:choice>
</xsd:group>
-----Original Message-----
From: Priscilla Walmsley [mailto:]
Sent: Friday, August 16, 2002 1:18 PM
To: 'Dave Yancey'
Cc:
Subject: RE: [xml-dev] XML-Schema Help
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
Author, Definitive XML Schema (Prentice Hall PTR)
-----------------------------------------------------
> -----Original Message-----
> From: Dave Yancey [mailto:]
> Sent: Friday, August 16, 2002 4:11 PM
> To: ;
> Cc: ;
> Subject: Re: [xml-dev] 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
>
>
>
> _________________________________________________________________
> Send and receive Hotmail on your mobile device: http://mobile.msn.com
>
>
> -----------------------------------------------------------------
> The xml-dev list is sponsored by XML.org <http://www.xml.org>, an
> initiative of OASIS <http://www.oasis-open.org>
>
> The list archives are at http://lists.xml.org/archives/xml-dev/
>
> To subscribe or unsubscribe from this list use the subscription
> manager: <http://lists.xml.org/ob/adm.pl>
>
>
-----------------------------------------------------------------
The xml-dev list is sponsored by XML.org <http://www.xml.org>, an
initiative of OASIS <http://www.oasis-open.org>
The list archives are at http://lists.xml.org/archives/xml-dev/
To subscribe or unsubscribe from this list use the subscription
manager: <http://lists.xml.org/ob/adm.pl>
