source: vbox/trunk/src/libs/libxml2-2.9.14/test/schemas/src-element2-2_0.xsd@ 102315

<?xml version="1.0" encoding="ISO-8859-1" ?>
<!-- 3.2.3 : 2.2 
    If ref is present, then all of <complexType>, <simpleType>, <key>, <keyref>, <unique>, 
    nillable, default, fixed, form, block and type must be absent, i.e. only minOccurs, maxOccurs, 
    id are allowed in addition to ref, along with <annotation>.

-->
<schema xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://foo" xmlns:foo="http://foo">
        
  <element name="bar" type="string"/>   
        
  <element name="foo">
          <complexType>
                <choice>
                
                        <!-- The good ones. -->
                        <element ref="foo:bar" minOccurs="0"/>
                        <element ref="foo:bar" maxOccurs="0"/>
                        <element ref="foo:bar" id="myomy"/>
                        
                        <!-- The bad ones. -->
                        <element ref="foo:bar">
                                <complexType>
                                        <attribute name="bar" type="string"/>
                                </complexType>
                        </element>
                        
                        <element ref="foo:bar">
                                <simpleType>
                                        <restriction base="string">
                                                <maxLength value="20"/>
                                        </restriction>
                                </simpleType>
                        </element>  
                        
                        <element ref="foo:bar" type="string"/>
                        <element ref="foo:bar" nillable="true"/>
                        <element ref="foo:bar" default="Joni"/>
                        <element ref="foo:bar" fixed="Mitchel"/>
                        <element ref="foo:bar" form="unqualified"/>
                        <element ref="foo:bar" block="restriction"/>                    
                        
                </choice>
          </complexType>    
  </element>  
  

</schema>