test schema namespace - .NET Framework

Ian Malone

Hi, I'm wondering if it's possible for a document to
contain a namespace which is a self-reference.

e.g. in the following:
<?xml version="1.0"?>
<!DOCTYPE rdf:RDF [<!ENTITY xsd "http://www.w3.org/2001/XMLSchema#">]>
<rdf:RDF
xmlns:rdf="http ://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:rdfs="htt p://www.w3.org/2000/01/rdf-schema#"
xmlns:contribut ion="http://www.example.org/#"
xml:base="http://www.example.org/#">

<rdf:Descriptio n rdf:ID="marcrel termmaybe">
<rdf:type rdf:resource="h ttp://www.w3.org/2000/01/rdf-schema#Property "/>
</rdf:Description >

<rdf:Descriptio n rdf:ID="anexamp le">
<contribution:m arcreltermmaybe >Or not
maybe</contribution:ma rcreltermmaybe>
</rdf:Description >

</rdf:RDF>

Description ends up as part of the contribution namespace,
because the base is the same. Is there any way to dispense
with the fictional www.example.org and make the namespace
point to the document itself? (I know this defeats the
point of a persistent namespace, but this is for purposes
of validating a test schema).

--
imalone

Oct 27 '05 #1

Subscribe Reply

1543

Tjerk Wolterink

Ian Malone wrote:

Hi, I'm wondering if it's possible for a document to
contain a namespace which is a self-reference.
I do not understand?
namespace wich is a self reference??

e.g. in the following:
<?xml version="1.0"?>
<!DOCTYPE rdf:RDF [<!ENTITY xsd "http://www.w3.org/2001/XMLSchema#">]>
<rdf:RDF
xmlns:rdf="http ://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:rdfs="htt p://www.w3.org/2000/01/rdf-schema#"
xmlns:contribut ion="http://www.example.org/#"
xml:base="http://www.example.org/#">

<rdf:Descriptio n rdf:ID="marcrel termmaybe">
<rdf:type rdf:resource="h ttp://www.w3.org/2000/01/rdf-schema#Property "/>
</rdf:Description >

<rdf:Descriptio n rdf:ID="anexamp le">
<contribution:m arcreltermmaybe >Or not
maybe</contribution:ma rcreltermmaybe>
</rdf:Description >

</rdf:RDF>

Description ends up as part of the contribution namespace,
because the base is the same. Is there any way to dispense
with the fictional www.example.org and make the namespace
point to the document itself? (I know this defeats the
point of a persistent namespace, but this is for purposes
of validating a test schema).

A namespace is nothing more that a name, it does not point to a document.

I do not really understand what youre asking, can further explain your
problem?

Oct 27 '05 #2

Ian Malone

Tjerk Wolterink wrote:

Ian Malone wrote:
Hi, I'm wondering if it's possible for a document to
contain a namespace which is a self-reference.

I do not understand?
namespace wich is a self reference??

e.g. in the following:
<?xml version="1.0"?>
<!DOCTYPE rdf:RDF [<!ENTITY xsd "http://www.w3.org/2001/XMLSchema#">]>
<rdf:RDF
xmlns:rdf="http ://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:rdfs="htt p://www.w3.org/2000/01/rdf-schema#"
xmlns:contribut ion="http://www.example.org/#"
xml:base="http://www.example.org/#">

<rdf:Descriptio n rdf:ID="marcrel termmaybe">
<rdf:type
rdf:resource="h ttp://www.w3.org/2000/01/rdf-schema#Property "/>
</rdf:Description >

<rdf:Descriptio n rdf:ID="anexamp le">
<contribution:m arcreltermmaybe >Or not
maybe</contribution:ma rcreltermmaybe>
</rdf:Description >

</rdf:RDF>

Description ends up as part of the contribution namespace,
because the base is the same. Is there any way to dispense
with the fictional www.example.org and make the namespace
point to the document itself? (I know this defeats the
point of a persistent namespace, but this is for purposes
of validating a test schema).

A namespace is nothing more that a name, it does not point to a document.

I do not really understand what youre asking, can further explain your
problem?

I would like to be able to dispense with:

xmlns:contribut ion="http://www.example.org/#"
xml:base="http://www.example.org/#"

in the root element and somehow still have a validating rdf in
xml document containing:
<contribution:m arcreltermmaybe >Or not
maybe</contribution:ma rcreltermmaybe>

My understanding is that contribution:ma rcreltermmaybe
stands in for
http://www.example.org/#marcreltermmaybe

Thanks for your time.

--
imalone

Oct 27 '05 #3

Richard Tobin

In article <43************ @cam.ac.uk>, Ian Malone <ib***@cam.ac.u k> wrote:

I would like to be able to dispense with:

xmlns:contribu tion="http://www.example.org/#"
xml:base="http ://www.example.org/#"

I don't think you can do this, but you really need to ask in an RDF forum.

Removing the xml:base would make references to ID marcreltermmayb e
mean whatever-the-documents-URI-is:marcreltermm aybe, but using
marcreltermmayb e instead of contribution:ma rcreltermmaybe as the element
name not do the corresponding thing (I don't see anything in
http://www.w3.org/TR/rdf-syntax-grammar describing the meaning of
an element in no namespace).

No meaning is assigned to relative namespace URIs, otherwise it might
work to use ".".

-- Richard

Oct 27 '05 #4

Ian Malone

Richard Tobin wrote:

In article <43************ @cam.ac.uk>, Ian Malone <ib***@cam.ac.u k> wrote:
I would like to be able to dispense with:

xmlns:contrib ution="http://www.example.org/#"
xml:base="htt p://www.example.org/#"

I don't think you can do this, but you really need to ask in an RDF forum.

Probably, but usenet was my first stop and I couldn't find any
RDF specific groups. I suspect that if XML doesn't allow it
then RDF won't make any provision, because it goes against the
whole idea.
Removing the xml:base would make references to ID marcreltermmayb e
mean whatever-the-documents-URI-is:marcreltermm aybe, but using
marcreltermmayb e instead of contribution:ma rcreltermmaybe as the element
name not do the corresponding thing (I don't see anything in
http://www.w3.org/TR/rdf-syntax-grammar describing the meaning of
an element in no namespace).

No meaning is assigned to relative namespace URIs, otherwise it might
work to use ".".

That's the impression I got, my knowledge of URIs is poor though,
so I was hoping I'd missed something. Thanks for your help.

--
imalone

Oct 27 '05 #5

Richard Tobin

In article <43************ **@cam.ac.uk>, Ian Malone <ib***@cam.ac.u k> wrote:

I suspect that if XML doesn't allow it
then RDF won't make any provision, because it goes against the
whole idea.

A minor point: the correspondence of contribution:ma rcreltermmaybe to
the URI http://www.example.org/#marcreltermmaybe given the presence of
the namespace declaration xmlns:contribut ion="http://www.example.org/#"
is something invented by RDF, not XML.

-- Richard

Oct 27 '05 #6

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