[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: XSD spec question

• To: xml-dev@l...
• Subject: Re: XSD spec question
• From: Rick Jelliffe <ricko@a...>
• Date: Thu, 28 Apr 2005 15:13:31 +1000
• In-reply-to: <642f07b6050427215328609939@m...>
• References: <BBF4F4DF-0DDA-4E82-8F7C-8F80EA8E3856@h...> <1114548194.9178.165.camel@l...> <426F1628.6030201@m...> <642f07b6050427215328609939@m...>
• User-agent: Mozilla Thunderbird 0.6 (X11/20040502)

Gregor wrote:

>The fact that that the Schema for Schemas can not be used for
>validating schemas can be checked here.
>(A reply by Xerces Project Lead Gareth Reakes to my mailinglist post
>on xerces-user-j on apache.org:
>http://blog.parthenoncomputing.com/xerces/archives/2005/04/can_i_validate.html
>
>However, his is not in-line with the original design goals from 1999:
>
>http://www.w3.org/TR/NOTE-xml-schema-req
>"The XML schema language must:...
>define a useful XML schema for XML schemas;"
>
>The schema for schemas may be found here:
>http://www.w3.org/2001/XMLSchema.xsd
>
>Maybe somebody can tell me what its use is if we can not use it in validation?
>
Bootstrapping is a special case. Schema processors are not required to 
handle
the formal schema for schemas: its purpose is in part to express the 
built-in parts
of the type-system using the same notation as actual schemas use.

But it is possible to derive a usable schema for schemas by editing the 
formal
schema for schemas. That is what Topologi products use, for example.

Cheers
Rick Jelliffe

• References:
  • XSD spec question
    • From: Chris Griffin <cgriffin@h...>
  • Re: XSD spec question
    • From: Eric van der Vlist <vdv@d...>
  • Re: XSD spec question
    • From: Razvan MIHAIU <mihaiu@m...>
  • Re: XSD spec question
    • From: Gregor <iamgregor@g...>

• Prev by Date: Re: newbie XUpdate how to use with java!
• Next by Date: RE: XSD spec question
• Previous by thread: Re: XSD spec question
• Next by thread: Language Theorie concerning XML Schema (heavy, at least to me)
• Index(es):
  • Date
  • Thread