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Re: XSD spec question

• To: Gregor <iamgregor@g...>
• Subject: Re: XSD spec question
• From: ht@i... (Henry S. Thompson)
• Date: Thu, 28 Apr 2005 10:27:42 +0100
• Cc: Razvan MIHAIU <mihaiu@m...>, Eric van der Vlist<vdv@d...>, xml-dev@l...
• In-reply-to: <642f07b6050427215328609939@m...> (Gregor's messageof "Thu, 28 Apr 2005 10:23:51 +0530")
• References: <BBF4F4DF-0DDA-4E82-8F7C-8F80EA8E3856@h...><1114548194.9178.165.camel@l...><426F1628.6030201@m...><642f07b6050427215328609939@m...>
• User-agent: Gnus/5.1006 (Gnus v5.10.6) XEmacs/21.4 (Security ThroughObscurity, linux)

Gregor writes:

> The fact that that the Schema for Schemas can not be used for
> validating schemas can be checked here.

That is a statement about a particular product, not a necessary
statement about the sForS.  The Second Edition of the W3C XML Schema
REC [1] incorporated several long-standing errata [2] with the result
that the sForS is both a schema-valid schema document and the XML
representation of a valid schema.

Note that there is a difference between testing whether any schema
document is schema-valid wrt the sForS, and testing whether it
corresponds to a valid schema per _all_ the rules in the Schema REC.

Most schema processors provide a separate form of invocation to do the
latter, more stringent, test.

ht

[1] http://www.w3.org/TR/xmlschema-1/
[2] http://www.w3.org/2001/05/xmlschema-errata
-- 
 Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
                     Half-time member of W3C Team
    2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
            Fax: (44) 131 650-4587, e-mail: ht@i...
                   URL: http://www.ltg.ed.ac.uk/~ht/
[mail really from me _always_ has this .sig -- mail without it is forged spam]

• 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...>

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