To: Radu Coravu and oXygen User ML

Study Subject

The use of the openContent element in the schema below was part of trying to determine how XHTML5 and XML could work together. If the XSD 1.1 openContent element were usable in XML and XHTML5, it would aid the development of combined implementations.

Bug: XSD 1.1 openContent mode="interleave in XML Page

Unfortunately, the XML page that was generated by an XSD1.1 schema shown below was incorrect.

The schema below, which includes an openContent element successfully validated

“SystemID: D:\XML\Schema\Schema1_1\interleave\books.xsd

Main validation file: D:\XML\Schema\Schema1_1\interleave\books.xsd

Engine name: Saxon-EE 9.3.0.5

Severity: info

Description: Validation successful.

<?xml version="1.0" encoding="UTF-8"?>”

The test case is based upon slides 266 and 217 of XML Schema 1.1 by Roger L. Costello, (http://www.xfront.com) dated 24 March 2011. Slide 217 is a complete XML page.

http://www.xfront.com/files/tutorials.html

Then pressing xml schema 1.1. This is followed by going “XML Schema 1.1 Tutorial”

And then going to the hyperlink labeled

Here is the tutorial: XML Schema 1.1 (PowerPoint document). It appears that there are at least two versions with different dates and slide numbers of this PowerPoint presentation that can be found with a Google search.

XSD1.1 Schema

</xs:schema> <?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
    targetNamespace="http://www.books.org" xmlns="http://www.books.org"
    elementFormDefault="qualified">
    <xs:element name="Book">
        <xs:complexType>
            <xs:openContent mode="interleave">
                <xs:any namespace="http://www.r.org" processContents="strict"/>
            </xs:openContent>
            <xs:sequence>
                <xs:element name="Title" type="xs:string"/>
                <xs:element name="Author" type="xs:string"/>
               <xs:element name="Date" type="xs:string"/>
                <xs:element name="ISBN" type="xs:string"/>
                <xs:element name="Publisher" type="xs:string"/>
            </xs:sequence>
        </xs:complexType>
    </xs:element>
</xs:schema>

When I attempted to use Tools.Generate XML schema, I received the following error message.

Description: cid:image001.jpg@01CC38ED.BBDBCA90

I ignored the error and generated:

<?xml version="1.0" encoding="UTF-8"?>

<Book xmlns="http://www.books.org"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://www.books.org file:/D:/XML/Schema/Schema1_1/interleave/books.xsd">

</Book>

If I comment out

I was able to generate:

<?xml version="1.0" encoding="UTF-8"?>
<Book xmlns="http://www.books.org"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.books.org file:/D:/XML/Schema/Schema1_1/interleave/books.xsd">
    <Title>Title0</Title>
    <Author>Author0</Author>
    <Date>Date0</Date>
    <ISBN>ISBN0</ISBN>
    <Publisher>Publisher0</Publisher>
</Book>

The result with the above XML page was:

SystemID: D:\XML\Schema\Schema1_1\interleave\book_XSD_1.xml

Main validation file: D:\XML\Schema\Schema1_1\interleave\book_XSD_1.xml

Engine name: Saxon-EE 9.3.0.5

Severity: info

Description: Validation successful.

I created an r.xsd schema based on the XML page shown in :

The comments in r.xsd (below) are the values shown in the XML page I separate type definitions by a stylized comment <!—xxxxxxxxxxxxà

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
    targetNamespace="http://www.r.org" xmlns="http://www.r.org"
    elementFormDefault="qualified">
    <xs:element name="Binding" type="Binding_Type"/>
    <xs:simpleType name="Binding_Type">
        <xs:restriction base="xs:token">
            <xs:enumeration value="Hardcover"/>
            <xs:enumeration value="Soft"/>
        </xs:restriction>
    </xs:simpleType>

<xs:simpleType name="Category_Type">
        <xs:restriction base="xs:token">
            <xs:enumeration value="Non-fiction"/>
            <xs:enumeration value="Fiction"/>
        </xs:restriction>
    </xs:simpleType>
    
    <xs:element name="Size" type="xs:int"/>
    
    <xs:element name="InStock" type="xs:boolean"/>
    
    <xs:element name="Category" type="Category_Type"/>
    
    <xs:element name="NumPages" type="xs:int"/>
    
    <xs:element name="AvailableOnTape" type="xs:boolean"/>
    
</xs:schema>
----------------------------------------------------------------

Test XML page that includes one element (<r:Size>5 x 7</r:Size>) from the schema (r.xsd) that contains the interleaved elements

<?xml version="1.0" encoding="UTF-8"?>
<Book xmlns="http://www.books.org"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:r="http://www.r.org"
xsi:schemaLocation="http://www.books.org file:/D:/XML/Schema/Schema1_1/interleave/books.xsd">
  
<Title>My Life and Times</Title>
  <r:Size>5 x 7</r:Size>
<Author>Paul McCartney</Author>
  
<Date>1998</Date>
  
<ISBN>1-56592-235-2</ISBN>
  
<Publisher>McMillin Publishing</Publisher>

</Book>

“Validating this XML page resulted in

SystemID: D:\XML\Schema\Schema1_1\interleave\book_Inter1.xml

Main validation file: D:\XML\Schema\Schema1_1\interleave\book_Inter1.xml

Engine name: Saxon-EE 9.3.0.5

Severity: error

Description: In content of element <Book>: The content model does not allow element <r:Size> to appear here. Expected: {http://www.books.org}Author

Start location: 8:11

SystemID: D:\XML\Schema\Schema1_1\interleave\book_Inter1.xml

Main validation file: D:\XML\Schema\Schema1_1\interleave\book_Inter1.xml

Engine name: Saxon-EE 9.3.0.5

Severity: fatal

Description: One or more validation errors were reported

Start location: 17:8.

However, the web page was well formed.”

Thank you.

Bob Leif