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   Re: Validating parser and namespace declarations

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  • From: Wayne Steele <xmlmaster@hotmail.com>
  • To: roblugt@elcel.com, xml-dev@lists.xml.org
  • Date: Mon, 20 Nov 2000 19:03:30 -0800

Validation does not change with the addition of Namespaces.
It is common practice to complain bitterly when you have to address this.
The technique used in the 'DTD for Schemas' works, if your XML Parser is up 
for it (works in MSXML 3.0):

XML Document:

   <!DOCTYPE a:test  SYSTEM "test.dtd" [
   <!ENTITY % p "a:" >
   <!ENTITY % s ":a" >
   <a:test xmlns:a="http://elcel.com/ns"/>

External DTD Subset:
   <!ENTITY % p "" >
   <!ENTITY % s "" >
   <!ENTITY % q_test "%p;test" >
   <!ENTITY % nsdecl "xmlns%s;" >
   <!ELEMENT %q_test; EMPTY >
   <!ATTLIST %q_test;
     %nsdecl; CDATA #IMPLIED >

If you're not using prefixes (like in your original example), just dump the 
internal subset.

-Wayne Steele

>From: Rob Lugt <roblugt@elcel.com>
>If validation does not change between XML 1.0 and XML + Namespaces then the
>DTD needs to be amended to include the xmlns attributes.  In this case is 
>common practice to override the root element ATTLIST in the internal DTD
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