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Re: Making DTDs more namespace aware (was WD for Namespaces 1.

• To: xml-dev@l...
• Subject: Re: Making DTDs more namespace aware (was WD for Namespaces 1.1)
• From: james anderson <james.anderson@s...>
• Date: Thu, 04 Apr 2002 15:11:20 +0200
• Organization: nil
• References: <200204031820.TAA14729@m...> <p04330102b8d1f08bc84b@[192.168.254.4]> <01a501c1dbd5$51649db0$32f5d90c@C1980223A>
• Reply-to: james.anderson@s...

Jeff Rafter wrote:
> 
> [an additional dtd form to declare an entities / a documents namespace ...]
> 
> So the idea requires two changes to DTD syntax (well-formedness): ability to
> define namespaces in the DTDeclaration and in a PE declaration.

there is no need to add declaration forms. the existing declarations are
sufficient. one need only apply them.

>                                                                 However
> validation based on this model significantly changes.

the validation algorithm itself does not change. dtd-based validation
still depends on name identity.

>                                                The biggest change is
> neding to track what namespace an element or attribute was declared in.

as names are constants, the parser can do constant folding and there is
nothing to track. the namespace is - on first order - an immutable
property of the name.

(if one doesn't believe that a "parser" should do this, one can layer
that on top, but the difference is not material. this entails, however,
that validation be performed "outside of" the parser as well.)

> 
> Just an idea...
>

• References:
  • Re: WD for Namespaces 1.1
    • From: Richard Tobin <richard@c...>
  • Re: WD for Namespaces 1.1
    • From: Elliotte Rusty Harold <elharo@m...>
  • Making DTDs more namespace aware (was WD for Namespaces 1.1)
    • From: "Jeff Rafter" <jeffrafter@d...>

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