You're on the wrong list for XML Schema questions - the right place is
xmlschema-dev(_at_)w3(_dot_)org(_dot_)
But the answer is that you can express this model without violating UPA. In
shorthand, you write it as
((waiting,passing?)|passing)
Michael Kay
http://www.saxonica.com/
-----Original Message-----
From: Stano Paska [mailto:paska(_at_)kios(_dot_)sk]
Sent: 02 February 2005 05:23
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: [xsl] DTD to Scheme
Hi,
I need rewrite som DTD into XML Schema.
I have problem with one part.
In element "item" there may be three combinations of waiting/passing
elements:
one waiting, one passing, or both.
In DTD it is easy and it works:
<!ELEMENT item (risid,(waiting|passing|(waiting,passing)))>
In Scheme it is easy, but it does not work:
<xsd:element name="item">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="risid"/>
<xsd:choice>
<xsd:element ref="waiting"/>
<xsd:element ref="passing"/>
<xsd:sequence>
<xsd:element ref="waiting"/>
<xsd:element ref="passing"/>
</xsd:sequence>
</xsd:choice>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
:0,0: Complex type 'C0' violates the Unique Particle
Attribution rule in
its components 'waiting' and 'waiting'
It is possible to write corresponding schema?
Thanks for your solutions.
Stano.
Attachments:
-----------------
test.xml
-----------------
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE result SYSTEM "d:\praca\lucia\klient\dtd.dtd">
<result>
<item>
<risid>DE307001001223</risid>
<waiting>
<average>13.99</average>
<deviation>6.27</deviation>
<count>4</count>
</waiting>
<passing>
<average>13.99</average>
<deviation>6.27</deviation>
<count>4</count>
</passing>
</item>
</result>
----------------
DTD
----------------
<?xml version="1.0" encoding="UTF-8"?>
<!ELEMENT result (item+|error)>
<!ELEMENT error (#PCDATA)>
<!ELEMENT item (risid,(waiting|passing|(waiting,passing)))>
<!ELEMENT risid (#PCDATA)>
<!ELEMENT waiting (average,deviation,count)>
<!ELEMENT passing (average,deviation,count)>
<!ELEMENT average (#PCDATA)>
<!ELEMENT deviation (#PCDATA)>
<!ELEMENT count (#PCDATA)>
-----------------
Scheme
-----------------
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema";>
<!-- simple elements -->
<xsd:element name="risid" type="xsd:string"/>
<xsd:element name="average" type="xsd:decimal"/>
<xsd:element name="deviation" type="xsd:decimal"/>
<xsd:element name="count" type="xsd:nonNegativeInteger"/>
<xsd:element name="error" type="xsd:string"/>
<!-- complex elements -->
<xsd:complexType name="record">
<xsd:sequence>
<xsd:element ref="average"/>
<xsd:element ref="deviation"/>
<xsd:element ref="count"/>
</xsd:sequence>
</xsd:complexType>
<xsd:element name="waiting" type="record"/>
<xsd:element name="passing" type="record"/>
<xsd:element name="item">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="risid"/>
<xsd:choice>
<xsd:element ref="waiting"/>
<xsd:element ref="passing"/>
<xsd:sequence>
<xsd:element
ref="waiting"/>
<xsd:element
ref="passing"/>
</xsd:sequence>
</xsd:choice>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="result">
<xsd:complexType>
<xsd:choice>
<xsd:element ref="error"/>
<xsd:element ref="item"
maxOccurs="unbounded"/>
</xsd:choice>
</xsd:complexType>
</xsd:element>
</xsd:schema>
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