xml-dev - namespaces & DTD's

["Imran Rashid" <imranr@wolfram.com>]

(I posted this to xml-l earlier, but didn't get a response, so I'm trying 
here...)

I'm having trouble validating a document against my DTD when I throw in
namespaces.  I'm using the xerces-j parser.

my XML document looks something like this:
<CellGroup>
 <style:Input>
  ...
 </style:Input>
</CellGroup>

with DTD snippet:
<!ELEMENT CellGroup ( Cell | style:Input | style:Output)+>


I get the error:
The content of element type "CellGroup" must match
"(Cell|style:Input|style:Output)".

I tried taking out the namespaces, like this:
<CellGroup>
 <Input>
  ...
 </Input>
</CellGroup>

with DTD:
<!ELEMENT CellGroup (Cell | Input | Output)+>

and it worked fine.  (which was very strange, b/c I actually did *not* have
a declaration for the element "Input", just for "style:Input".)

The xerces-j parser does process namespaces, but from my reading of the
namespace spec and from Harold's "XML Bible", I thought I was doing the
right thing.

I'd appreciate any tips on what I'm doing wrong.

thanks,
Imran Rashid

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