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Re: Mixed content and empty content

From: Henry S. Thompson <ht@inf.ed.ac.uk>
Date: Mon, 12 Nov 2007 11:19:26 +0000
To: "Shlomo Yona" <S.Yona@F5.com>
Cc: "Michael Kay" <mike@saxonica.com>, <xmlschema-dev@w3.org>
Message-ID: <f5bve87pv7l.fsf@hildegard.inf.ed.ac.uk>

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Shlomo Yona writes:

> Since this is a mixed content then the textual data is not
> restricted at all -- can the textual content be further restricted
> by derivation even if it is mixed? I mean -- can it be changed to an
> xsd:integer? I think not, but I don't know.

This _is_ allowed -- it's how the simple types are in principle
derivable from anyType.  For your example:

    <xs:complexType name="rtype" mixed="true"/>

    <xs:element name="root">
     <xs:complexType>
      <xs:simpleContent>
       <xs:restriction base="rtype">
        <xs:simpleType>
         <xs:restriction base="xs:integer"/>
        </xs:simpleType>
       </xs:restriction>
      </xs:simpleContent>
     </xs:complexType>
    </xs:element>

ht
- -- 
 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@inf.ed.ac.uk
                   URL: http://www.ltg.ed.ac.uk/~ht/
[mail really from me _always_ has this .sig -- mail without it is forged spam]
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Received on Monday, 12 November 2007 11:19:50 GMT

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