tool support schema for xs:extension or a way to replace it

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

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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