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

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
	
	<!-- the translation 'fragment' -->
	<xs:element name="fragment">
		<xs:complexType mixed="true">
		
			<xs:choice minOccurs="1" maxOccurs="unbounded">
				<xs:element ref="kind"/>
			</xs:choice>
			
			<!-- the name of the translation 'fragment' -->
			<xs:attribute name="name" type="xs:string" use="required"/>
			
			<!-- the optional name of the 'handler' method, this is the method
			     that will handle translation of the fragment if the name is found.  
			     The handler method belongs on your Translator implementation -->
			<xs:attribute name="handlerMethod" type="xs:string"/>
			
		</xs:complexType>
	</xs:element>
	
	<xs:element name="fragments">
		<xs:complexType>
			<xs:sequence>
				<xs:element ref="fragment" maxOccurs="unbounded"/>
			</xs:sequence>
		</xs:complexType>
	</xs:element>
	
	<!-- the kind or type of the expression being translated by the 
	     translation fragment -->
	<xs:element name="kind">
		<xs:complexType>
			<xs:simpleContent>
				<xs:extension base="xs:string">
					<xs:attribute name="name" use="required">
						<xs:simpleType>
							<xs:restriction base="xs:NMTOKEN">
								<xs:enumeration value="body"/>
								<xs:enumeration value="def"/>
								<xs:enumeration value="inv"/>
								<xs:enumeration value="post"/>
								<xs:enumeration value="pre"/>
							</xs:restriction>
						</xs:simpleType>
					</xs:attribute>
				</xs:extension>
			</xs:simpleContent>
		</xs:complexType>
	</xs:element>
	
	<!-- the root 'translation' element -->
	<xs:element name="translation">
		<xs:complexType>
			<xs:sequence>
				<xs:element ref="fragments"/>
				<xs:element ref="ignored-pattern" minOccurs="0" maxOccurs="unbounded"/>
			</xs:sequence>
			<xs:attribute name="name" type="xs:string" use="required"/>
		</xs:complexType>
	</xs:element>
	
	<!-- patterns allow us to do additional things with patterns/regular expressions will translating -->
	<xs:element name="patterns">
		<xs:complexType>
			<xs:sequence>
			
				<!-- These can be specified to indicate which patterns should be validated
			         against the model -->
				<xs:element ref="validate" minOccurs="0" maxOccurs="unbounded" />
				
				<!-- These can be specified so that any pattern not matching in a handler can will be ignored,
				     if these aren't specified any patterns not matching give errors -->
				<xs:element ref="ignore" minOccurs="0" maxOccurs="unbounded" />
				
			</xs:sequence>
		</xs:complexType>	
	</xs:element>
	
	<xs:element name="ignore" type="xs:string"/>
	
	<xs:element name="validate" type="xs:string"/>
	
</xs:schema>