Donal, I had thought about this and personally intentionally discarded the argument of "ugliness" - XML documents are per se ugly. ;-) But you definitely have a point in validating becomes difficult. Therefore I join forces with you, and define the Document in XML Schema as follows: ---------- SNIP ---------- SNIP ---------- SNIP ---------- SNIP ---------- <xsd:element name="NamespaceBinding"> <xsd:complexType> <xsd:attribute name="ns" type="xsd:anyURI" use="required"/> <xsd:attribute name="prefix" type="xsd:NCName" use="required" /> </xsd:complexType> </xsd:element> <xsd:element name="DocumentNode" substitutionGroup="sweep:Parameter"> <xsd:complexType> <xsd:sequence> <xsd:element ref="sweep:NamespaceBinding" minOccurs="1" maxOccurs="unbounded" /> <xsd:element name="Match" type="xsd:string" /> </xsd:sequence> </xsd:complexType> </xsd:element> ---------- SNIP ---------- SNIP ---------- SNIP ---------- SNIP ---------- The example therefore would change as follows: ---------- SNIP ---------- SNIP ---------- SNIP ---------- SNIP ---------- <sweep:DocumentNode> <sweep:NamespaceBinding ns="http://schemas.ggf.org/jsdl/2005/11/jsdl-posix " prefix="foo" /> <sweep:NamespaceBinding ns="http://schemas.ggf.org/jsdl/2005/11/jsdl-posix " prefix="bar" /> <sweep:Match>//foo:POSIXApplication/bar:Argument[4]</sweep:Match> </sweep:DocumentNode> ---------- SNIP ---------- SNIP ---------- SNIP ---------- SNIP ---------- Cheers, Michel On 21 Aug 2008, at 13:55, Donal K. Fellows wrote:
Michel Drescher wrote:
The following is a brief example how the DocumentNode element would be used in a Sweep: <sweep:DocumentNode mapping="http://schemas.ggf.org/jsdl/2005/11/jsdl-posix foo http://schemas.ggf.org/jsdl/2005/11/jsdl-posix bar"> //foo:POSIXApplication/bar:Argument[4] <sweep:DocumentNode> Note that the example is quite artificial as it binds the same namespace to two different prefixes. Nonetheless, it is a valid example.
For myself, I'd not use a list of strings in a mapping attribute because that's not just awkward to validate, but also ugly! Instead I'd go with:
<sweep:DocumentNode> <sweep:Map uri="http://schemas.ggf.org/jsdl/2005/11/jsdl-posix" prefix="foo"/> <sweep:Map uri="http://schemas.ggf.org/jsdl/2005/11/jsdl-posix" prefix="bar"/> <sweep:Match>//foo:POSIXApplication/bar:Argument[4]</sweep:Match> </sweep:DocumentNode>
I suppose this would be a good point to note that the prefixes for a particular group of Map terms would need to be unique. The scope of the uniqueness is really tight though, so I've no problem with it. But this is all just my take on things. (Gah! The W3C really ought to do a way to embed XPath in XML without all this crud, but that's outside the scope of JSDL-WG for sure, and of OGF too...)
Donal.
-- Michel Drescher Fujitsu Laboratories of Europe, Ltd. Hayes Park Central Hayes End Road Hayes, Middlesex UB4 8FE Reg. No. 4153469 +44 20 8606 4834 Michel.Drescher@uk.fujitsu.com