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Re: Mixed content woes (

From: Henry S. Thompson <ht@cogsci.ed.ac.uk>
Date: 18 Nov 2002 18:56:01 +0000
To: "Stuart Brown" <sepenidur@hotmail.com>
Cc: xmlschema-dev@w3.org
Message-ID: <f5b65uun1vi.fsf@erasmus.inf.ed.ac.uk>

"Stuart Brown" <sepenidur@hotmail.com> writes:

> I'm newish to XSD, and am having some trouble with converting DTD
> mixed content element into mixed complex types that reference
> groups. Having tracked through the archives I'm kind of getting an
> idea of the problem, but I'm still stuck as to a solution.

No need to apologise -- you have done everything right.

> Say I had a DTD fragment like so:
> 
> <!ENTITY % foo "a | b | c">
> <!ELEMENT z (#PCDATA | %foo; | d)*>
> 
> and for argument's sake a, b, c are PCDATA only and d implements a
> defined complex type.
> 
> The datatype of (PCDATA | %foo | d) reoccurs in other elements, as
> does %foo alone, so I have designed the schema equivalent as follows:
> 
> <xsd:group name="foo">
> <xsd:choice>
>   <xsd:element name="a" type="xsd:string"/>
>   <xsd:element name="b" type="xsd:string"/>
>   <xsd:element name="c" type="xsd:string"/>
> </xsd:choice>
> </xsd:group>
> <xsd:complexType name="dType">
> <!-- etc... -->
> </xsd:complexType>
> <xsd:complexType name="zType" mixed="true">
> <xsd:choice minOccurs="0" maxOccurs="unbounded">
>   <xsd:group ref="foo"/>
>   <xsd:element name="d" type="dType"/>
> </xsd:choice>
> </xsd:complexType>
> <xsd:element name="z" type="zType"/>

That looks fine to me, and it works with your instance with XSV [1].

> Then all string data after the first occurrence of a child element is
> rejected (by XMLSpy) with the message: Text not allowed inside element
> "
> Any advice on how I can reference group/choice fragments in a mixed
> content complex type?

Use a different validator :-).  Seriously, this looks like a problem
with XML Spy, unless I'm missing something.

ht

[1] http://www.w3.org/2001/03/webdata/xsv
-- 
  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
          W3C Fellow 1999--2002, part-time member of W3C Team
     2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
	    Fax: (44) 131 650-4587, e-mail: ht@cogsci.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]
Received on Monday, 18 November 2002 13:56:03 GMT

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