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Re: P3P and XML Schemas

From: Yuichi Koike <koike@w3.org>
Date: Thu, 13 Apr 2000 16:35:56 -0400
Message-ID: <009201bfa587$df6b9180$74001d12@w3.org>
To: <duerst@w3.org>
Cc: <www-p3p-public-comments@w3.org>
Martin,

Thank you for your comment.
We decided to have the fixed element order in the P3P spec.
So, the next P3P public draft will include the DTD and XML schema, 
which exactly describe the constraint of the P3P policy document.
(And, of-course, a valid example)

    Regards,

-- 
Yuichi Koike (koike@w3.org)

Martin Duerst wrote:
> The [ABNF] notation used in this specification is specified in RFC2234
> and summarized in an Appendix. However, note that such
> syntax is only a grammar representative of the XML syntax: all the
> syntactic flexibilities of XML are also implicitly included; e.g.
> whitespace rules, quoting using either single quote (') or double
> quote ("), character escaping, comments, and case sensitivity. In
> addition, note that attributes and elements may appear in any order.
> 
> 
> So I think it's up to P3P to clarify this as quickly as possible:
> 
> - If you want arbitrary element order, change the DTD (it gets either
>    much more complex or simple but very loose), and input your request
>    to XML schema.
> 
> - If you are happy with fixed order, change the prose in the spec
>    and check/change the examples.
> 
> On the XML schema side, if it's currently not possible to express
> arbitrary order with occurrence constraints, that may be a problem
> independent of whether P3P needs it; I'm sure there are other uses
> where this is a requirement.

-- 
Yuichi Koike (koike@w3.org)
World Wide Web Consortium (W3C)
Technology and Society Domain
http://www.w3.org/People/Koike/
Received on Thursday, 13 April 2000 16:36:13 GMT

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