Re: [xri] RelaxNG schemas for XRI resolution

["Tan, William" <William.Tan@neustar.biz>]

I agree that we should not allow extension attributes that are no 
namespace qualified, if for no other reason than to be able to tell them 
apart from the "built-in" ones.

=wil

Gabe Wachob wrote:
>
> Besides the attribute extension and missing redirect attribute issues, 
> I also realized that the “extension” attribute pattern in the original 
> schema was wrong, I THINK.
>
> Here’s the thing – if we allow “extension” attributes – what 
> attributes do we allow exactly?
>
> Do we allow **any** attribute, whether local or namespace qualified? 
> What are your thoughts? My feeling is that you are asking for trouble 
> if you start sprinkling around non-namespaced attributes as 
> **extension* *attributes.. (its fine when they are in elements YOU 
> define).
>
> So my preference I think is to allow only extension attributes that 
> are namespace qualified, and NOT in the xrd/xrds namespaces (we don’t 
> define **any** attributes that are namespace qualified with the xrd or 
> xrds namespaces) . Anyone gotta problem with THAT?
>
> -Gabe
>
> ------------------------------------------------------------------------
>
> *From:* Gabe Wachob [mailto:gabe.wachob@amsoft.net]
> *Sent:* Monday, October 22, 2007 6:18 PM
> *To:* 'OASIS XRI TC'
> *Subject:* [xri] RelaxNG schemas for XRI resolution
>
> I went ahead and threw together two RelaxNG schemas (one for XRDS, one 
> for XRD). Please check carefully – this is a very rough cut and I had 
> to guess at element ordering in many places.
>
> I note that in the document, there are a lot of places where 
> attributes are referred to by qualified name – I missed in this in my 
> last review, but I believe the XML schema and our decision was to make 
> them **unqualified** - so in section 4.1, you wouldn’t use @xrds:ref, 
> you’d simply use @ref
>
> Anyway here’s the two schemas cut n pasted in:
>
> xrds.rnc
>
> namespace xrds = "xrd://$xrds"
>
> datatypes xs = "http://www.w3.org/2001/XMLSchema-datatypes";
>
> anyelement =
>
> element * {
>
> (attribute * { text }
>
> | text
>
> | anyelement)*
>
> }
>
> start = element xrds:XRDS {
>
> attribute ref { xs:anyURI },
>
> anyelement *
>
> }
>
> xrd.rnc
>
> default namespace = "xrd://$xrd*($v*2.0)"
>
> namespace xrd = "xrd://$xrd*($v*2.0)"
>
> namespace saml = "urn:oasis:names:tc:SAML:2.0:assertion"
>
> namespace ds = "http://www.w3.org/2000/09/xmldsig#";
>
> datatypes xs = "http://www.w3.org/2001/XMLSchema-datatypes";
>
> datatypes rd = "http://relaxng.org/ns/compatibility/datatypes/1.0";
>
> start=XRD
>
> anyelementbody =
>
> (attribute * {text}
>
> | text
>
> | element * {anyelementbody} )*
>
> non.xrd.element = element * - xrd:* {
>
> anyelementbody
>
> }
>
> non.xrd.attribute = attribute * - xrd:* {text}
>
> # XRD Element
>
> # XXX Need to check order of the following
>
> XRD=element XRD {
>
> attribute xml:id {rd:ID} ?,
>
> attribute idref {rd:IDREF} ?,
>
> attribute version { "2.0" } ?,
>
> Query ?,
>
> Status ?,
>
> ServerStatus ?,
>
> Expires ?,
>
> ProviderID ?,
>
> (Redirect | Ref) ?,
>
> LocalID *,
>
> EquivID *,
>
> CanonicalID ?,
>
> CanonicalEquivID ?,
>
> Service *,
>
> element saml:Assertion {anyelementbody} ?,
>
> non.xrd.element *
>
> }
>
> Query=element Query {
>
> non.xrd.attribute *,
>
> text
>
> }
>
> statuspattern = attribute code {xs:integer},
>
> attribute cid { "absent" | "off" | "verified" | "failed" },
>
> attribute ceid { "absent" | "off" | "verified" | "failed" },
>
> text
>
> Status=element Status {
>
> statuspattern
>
> }
>
> ServerStatus = element ServerStatus {
>
> statuspattern
>
> }
>
> Expires = element Expires {
>
> xs:dateTime
>
> }
>
> Redirect = element Redirect {
>
> attribute priority {xs:integer}?,
>
> xs:anyURI
>
> }
>
> Ref = element Ref{
>
> attribute priority {xs:integer}?,
>
> xs:anyURI
>
> }
>
> ProviderID = element ProviderID {
>
> xs:anyURI
>
> }
>
> # not specifying requirements for saml:Assertion - maybe we should?
>
> LocalID = element LocalID {
>
> attribute priority {xs:integer},
>
> xs:anyURI
>
> }
>
> EquivID = element EquivID {
>
> attribute priority {xs:integer},
>
> xs:anyURI
>
> }
>
> CanonicalID = element CanonicalID {
>
> xs:anyURI
>
> }
>
> CanonicalEquivID = element CanonicalEquivID {
>
> xs:anyURI
>
> }
>
> Service = element Service {
>
> attribute priority {xs:integer}?,
>
> ProviderID?,
>
> LocalID *,
>
> Type *,
>
> Path *,
>
> MediaType *,
>
> (URI+|Redirect+|Ref+)?,
>
> element ds:KeyInfo {anyelementbody}?,
>
> non.xrd.element *
>
> }
>
> URI = element URI {
>
> attribute priority {xs:integer}?,
>
> xs:anyURI
>
> }
>
> selection.attributes = attribute match {"any" | "default" | "non-null" 
> | "null" },
>
> attribute select { xs:boolean}
>
> Type = element Type {
>
> selection.attributes,
>
> xs:anyURI
>
> }
>
> Path = element Path {
>
> selection.attributes,
>
> xs:string
>
> }
>
> MediaType = element MediaType {
>
> selection.attributes,
>
> xs:string
>
> }
>