[DFDL-WG] Action 274: Namespaces of element names in the path

[Mike Beckerle]

Suggest adding this wording to the end of section 23.4 as an additional
note.

5. NameTest - These QNames are path steps that refer to elements in the
DFDL infoset. If such an element is in a namespace, then the NameTest QName
must have a prefix which is bound to the namespace. Specifically, any
default namespace is not used to implicitly qualify these NameTest QNames.
This behavior is consistent with XPath expression usage in XML Schema
[footnote to: Definitive XML Schema (Walmsley, ISBN 0-13-065567-8)  page
390, Section 17.8, Table 17-6 says "A child element-type name which must be
prefixed if it is in a namespace".] such as in the path property of the
xs:selector and xs:field elements within xs:key  and xs:unique constraints, and
in related XML standards such as XSLT. Note however, that this behavior is
different from the way QNames are used in other places in XML and DFDL
Schemas such as the ref property of an element reference, or the dfdl:ref
property of a DFDL format annotation. There a QName with no prefix must
always be referring to a global declaration or definition, and so is
augmented with the default namespace when needed.

Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology |
www.tresys.com
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