Hi,

I noticed a difference in processing of the following example with:

Xerces-J 2.6.2 - eats it
XSV 2.8        - eats it
MSXML 4.0      - reports an error: 
  "The element: 'foo'  has an invalid value according to its data type."

Schema:
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
	<xsd:simpleType name="fooType">
		<xsd:union memberTypes="xsd:string xsd:token"/>
	</xsd:simpleType>
	<xsd:element name="foo">
		<xsd:simpleType>
			<xsd:restriction base="fooType">
				<xsd:pattern value="[a-z]"/>
			</xsd:restriction>
		</xsd:simpleType>
	</xsd:element>
</xsd:schema>

Instance:
<foo> a   </foo>

Due to [1]...
"For all datatypes =B7derived=B7 by =B7union=B7  whiteSpace does not apply
directly; however, the normalization behavior of =B7union=B7 types is
controlled by the value of whiteSpace on that one of the =B7memberTypes=B7
against which the =B7union=B7 is successfully validated."

...I assume that the whitespace of xs:string is used here; thus the
value " a   " should not be accepted by the pattern "[a-z]". Can someone
confirm this?
MSXML 4.0 seems to reflect this, the other processors not.

The fact that the whitespace-value is at hand when the value was
already validated against the member-types, seems to contradict with
[2] Datatype Valid, which mandates the pattern facet to be applied
first; but without the whitespace-value, normalization is not possible,
so applying the pattern facet is not possible as well.
Can someone clarify this?

[1] http://www.w3.org/TR/xmlschema-2/#rf-whiteSpace
[2] http://www.w3.org/TR/xmlschema-2/#defn-validation-rules

Regards,

Kasimier

From xan.gregg@j... Wed Jun 01 19:36:24 2005
Received: from lisa.w3.org ([128.30.52.41])