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Unfortunately, the CDATA sections solution breaks if the nested document also includes a CDATA section. The only complete solution is to encode the nested document, either as bas64, or just escape dangerous constructs. I prefer just representing it inline, and 'escaping' the xml-decl to be something like "<?x-xml ...". If there is a potential for a doctype decl, you are better off just using base64, as trying to escape a DTD is quite tricky.
-derek
> -----Original Message-----
> From: Bornholtz, Tim [mailto:Tim.Bornholtz@ed.gov]
> Sent: Wednesday, December 29, 2004 11:55 AM
> To: Jean-Noël Colin; xml-dev@lists.xml.org
> Subject: RE: [xml-dev] Embed an XML document in another XML document
>
> If you really need to have any sort of content within your body then you
> can define the body tag to contain a CDATA section. Then your document
> will look like this:
>
>
> <?xml version="1.0" encoding="UTF-8"?>
> <message ... >
> <messageid>123456</messageid>
> <body><![CDATA[
> <?xml version="1.0" encoding="UTF-8"?>
> <filter ... >
> <and>
> <comp><op>eq</op><field>1.3</field><value>value1</value></comp>
> <comp><op>eq</op><field>1.2</field><value>value2</value></comp>
> </and>
> </filter>
> ]]></body>
> </message>
>
> I'm sure there are a lot of other complicated ways to do this, but this is
> simple and it works.
>
> Hope this helps,
> Tim Bornholtz
>
>
> -----Original Message-----
> From: Jean-Noël Colin [mailto:jean-noel.colin@oxys.be]
> Sent: Wednesday, December 29, 2004 5:23 AM
> To: xml-dev@lists.xml.org
> Subject: [xml-dev] Embed an XML document in another XML document
>
>
> Hi
>
> I would like to create a XML Schema that would define the structure of an
> XML document that contains XML document
>
> Typically, something like
>
> <?xml version="1.0" encoding="UTF-8"?>
> <message ... >
> <messageid>123456</messageid>
> <body>
> <?xml version="1.0" encoding="UTF-8"?>
> <filter ... >
> <and>
> <comp><op>eq</op><field>1.3</field><value>value1</value></comp>
> <comp><op>eq</op><field>1.2</field><value>value2</value></comp>
> </and>
> </filter>
> </body>
> </message>
>
> I tried defining the schema like this, using different definitions for the
> body element, but I can't validate it.
>
> <?xml version="1.0" encoding="UTF-8"?>
> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
> targetNamespace="http://voyager.oxys.be/xml/ns/MyTest-0_1"
> xmlns="http://voyager.oxys.be/xml/ns/MyTest-0_1"
> elementFormDefault="qualified" attributeFormDefault="unqualified">
> <xs:element name="message" type="MessageType"/>
> <xs:complexType name="MessageType">
> <xs:sequence>
> <xs:element type="xs:NMTOKEN" name="messageid"/>
> <xs:element type="xs:anyType" name="body"/>
> </xs:sequence>
> </xs:complexType>
> </xs:schema>
>
>
> The reason I need this is because I have to define a structure of a
> message
> that is able any type of body. So I can't define the type of the body
> (using
> a choice, for instance).
>
> Any suggestion welcome,
>
> Happy New Year
>
> Jean-Noel Colin
>
>
>
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