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RE: question about group circle definition

From: Wang, Zhuo <zhuo.wang@intel.com>
Date: Thu, 8 Mar 2007 16:39:25 +0800
Message-ID: <7B2CABB47D5B094AAACC8A1E001B82F522812D@pdsmsx411.ccr.corp.intel.com>
To: "Michael Kay" <mike@saxonica.com>, <xmlschema-dev@w3.org>
Cc: "Moog, Thomas H" <thomas.h.moog@intel.com>
The case is: 




-Wang Zhuo 


From: Michael Kay [mailto:mike@saxonica.com] 
Sent: 2007年3月8日 16:38
To: Wang, Zhuo; xmlschema-dev@w3.org
Cc: Moog, Thomas H
Subject: RE: question about group circle definition 


Could you give the name of the test case please?


Michael Kay




	From: xmlschema-dev-request@w3.org [mailto:xmlschema-dev-request@w3.org] On Behalf Of Wang, Zhuo
	Sent: 08 March 2007 01:31
	To: xmlschema-dev@w3.org
	Cc: Moog, Thomas H
	Subject: question about group circle definition 

	Hi All, 


	I meet a case in w3c test suite: 


	<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">


	    <xsd:complexType name="a">


	            <xsd:group ref="ul" minOccurs="0" maxOccurs="unbounded"/> 




	    <xsd:group name="ul">


	            <xsd:element name="ul">



	                        <xsd:choice minOccurs="0" maxOccurs="unbounded">

	                            <xsd:element name="li" /> 

	                            <xsd:group ref="ul" minOccurs="0" maxOccurs="unbounded" /> 










	I think this case voilate:

	3.8.6 Constraints on Model Group Schema Components

	All model groups (see Model Groups (¡ì3.8)) must satisfy the following



	Schema Component Constraint: Model Group Correct

	All of the following must be true:

	2 Circular groups are disallowed. That is, within the {particles} of a group

	there must not be at any depth a particle whose {term} is the group itself.


	However, many schema validators say it is a valid case. 

	Somebody knows the reason? 



	- Wang Zhuo    


	Intel Asia-Pacific R&D Ltd.

	No. 880 ZiXing Road, ZiZhu Science Park,

	Shanghai, PRC, 200241



Received on Thursday, 8 March 2007 08:39:34 UTC

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