RE: [xml-dev] tool support schema for xs:extension or a way to replaceit

["CAUBEL, Hugues" <hugues.caubel@airbus.com>]

Sorry, i don't explain my problem clearly. I know that xs:extension is part of the specification, but i've read there is some problems with tool support of schema (like in this thread http://lists.xml.org/archives/xml-dev/200311/msg00871.html), and i'm wondering if i'm going to facing troubles. So I would like to know if some of you have some feedbacks on the support of xs:entension in tool (as i don't have the ability to say which tool will use theses Schemas). 
May be there is no problem (i hope so) - and my question is too paranoiac :) 

If i take the previous sample and translate ii in the xs:extension way, it would give something like  this :

- initial structure with mix elements and attributes

<xs:complexType name="groupGeneralType">
	<xs:sequence>
		<xs:element name="elt1">
			<xs:complexType>
				<xs:sequence maxOccurs="unbounded">
					<xs:element name="elt2" type="anotherType"/>			     
					<xs:element name="elt3" type="xs:string"/>
				</xs:sequence>
			</xs:complexType>
		</xs:element>
	</xs:sequence>
	<xs:attribute name="att1"  type="xs:string" use="optional"/>
</xs:complexType>

- and after that, other people will extend it in this way :

<xs:complexType name="userType">
	<xs:complexContent>
		<xs:extension base="groupGeneralType">
			<xs:sequence>
				<xs:element name="eltuser1"/>
			</xs:sequence>
			<xs:attribute name="attuser1" type="xs:string" use="optional"/>
		</xs:extension>
	</xs:complexContent>
</xs:complexType>


> -----Original Message-----
> From: Michael Kay [mailto:michael.h.kay@ntlworld.com]
> Sent: 26 July 2004 17:48
> To: CAUBEL, Hugues; xml-dev@lists.xml.org
> Subject: RE: [xml-dev] tool support schema for xs:extension 
> or a way to
> replace it
> 
> 
> xs:extension is a standard feature of XML Schema (perhaps you 
> are misled by
> its name?) so every XML Schema processor should support it.
> 
> Michael Kay 
> 
> > -----Original Message-----
> > From: CAUBEL, Hugues [mailto:hugues.caubel@airbus.com] 
> > Sent: 26 July 2004 15:13
> > To: xml-dev@lists.xml.org
> > Subject: [xml-dev] tool support schema for xs:extension or a 
> > way to replace it
> > 
> > Sorry, misclick.... i finish my previous post.
> > 
> > I would like to know if you have some feedback on the support 
> > of tool (parser, editor) for schema that use xs:entension. It 
> > seems fine with xmlSpy, Xerces and XSV, but may be it is not 
> > always the case with other tool (specially wheen looking at 
> > http://sdec.reach.ie/rigs/rig0004/html/)
> > 
> > In the beginning to avoid risk, i was looking for a way to 
> > use xs:group to do the same kind of task - but i could not do 
> > it, as i want something like 
> > 
> > <xs:group name="custGroup">
> >  <xs:sequence>
> >   <xs:element name="elt1" type="xs:string"/>
> >   <xs:element name="elt2" type="xs:string"/>
> >   <xs:element name="elt3" type="xs:string"/>
> >  </xs:sequence>
> >  <xs:attribute name="att1" type="xs:string"/>	
> > </xs:group>
> > 
> > but it is not legal to mix attributes and elements. 
> > 
> > Any ideas (and sadly i could not use relaxNG) ?
> > 
> > Thanks, hugues
> > 
> > 
> > 
> > 
> > 
> > 
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