[libxml2]Add libxml2 library

libxml2/test/schemas/src-element2-2_0.xsd

@@ -0,0 +1,48 @@
+<?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>