wolffd@0: <!-- Copyright 2002 Geodise Project, University of Southampton -->
wolffd@0: <!-- matlab.xsd - Jasmin Wason - 01/11/02 -->
wolffd@0: <!-- Schema to validate XML documents generated by the xml_save function -->
wolffd@0: <!-- of the XML Toolbox for Matlab written by Marc Molinari. -->
wolffd@0: <!-- Modification 14/11/02 Jasmin Wason -->
wolffd@0: <!-- Included a definition for the complex element -->
wolffd@0: <!-- Modification 27/11/02 Jasmin Wason -->
wolffd@0: <!-- Added complex element as a child of struct, sparse and cell -->
wolffd@0: <xs:schema targetNamespace="http://www.geodise.org/matlab.xsd" xmlns="http://www.geodise.org/matlab.xsd" xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
wolffd@0: 	<!-- struct element definition -->
wolffd@0: 	<!-- A struct element contains 0 or more struct, double, char, sparse, cell or complex elements -->
wolffd@0: 	<!-- These child elements may appear in any order -->
wolffd@0: 	<!-- A struct element contains a list of attributes as described in the structAttributes attributeGroup -->
wolffd@0: 	<xs:element name="struct">
wolffd@0: 		<xs:complexType>
wolffd@0: 			<xs:choice minOccurs="0" maxOccurs="unbounded">
wolffd@0: 				<xs:element ref="struct" />
wolffd@0: 				<xs:element ref="double" />
wolffd@0: 				<xs:element ref="char" />
wolffd@0: 				<xs:element ref="sparse" />
wolffd@0: 				<xs:element ref="cell" />
wolffd@0: 				<xs:element ref="complex" />
wolffd@0: 			</xs:choice>
wolffd@0: 			<xs:attributeGroup ref="structAttributes" />
wolffd@0: 		</xs:complexType>
wolffd@0: 	</xs:element>
wolffd@0: 	<!-- double element definition -->
wolffd@0: 	<!-- double may contain numerical entities of type integer, double, long etc -->
wolffd@0: 	<!-- The content is a list of XSD doubles -->
wolffd@0: 	<!-- and a list of attributes as described in the commonAttributes attributeGroup -->
wolffd@0: 	<xs:element name="double">
wolffd@0: 		<xs:complexType>
wolffd@0: 			<xs:simpleContent>
wolffd@0: 				<xs:extension base="listOfXsdDoubles">
wolffd@0: 					<xs:attributeGroup ref="commonAttributes" />
wolffd@0: 				</xs:extension>
wolffd@0: 			</xs:simpleContent>
wolffd@0: 		</xs:complexType>
wolffd@0: 	</xs:element>
wolffd@0: 	<!-- char element definition -->
wolffd@0: 	<!-- char contains alphanumerical entities (characters, strings, etc.) -->
wolffd@0: 	<!-- The content is an XSD string -->
wolffd@0: 	<!-- and a list of attributes as described in the commonAttributes attributeGroup -->
wolffd@0: 	<xs:element name="char">
wolffd@0: 		<xs:complexType>
wolffd@0: 			<xs:simpleContent>
wolffd@0: 				<xs:extension base="xs:string">
wolffd@0: 					<xs:attributeGroup ref="commonAttributes" />
wolffd@0: 				</xs:extension>
wolffd@0: 			</xs:simpleContent>
wolffd@0: 		</xs:complexType>
wolffd@0: 	</xs:element>
wolffd@0: 	<!-- sparse element  definition -->
wolffd@0: 	<!-- sparse contains sparse matrices (2 arrays of type double and 1 array of type double or complex) -->
wolffd@0: 	<!-- ([i], [j], [k]), S(i, j)=k) -->
wolffd@0: 	<!-- A sparse element is either empty or contains -->
wolffd@0: 	<!-- a list of 2 double + 1 double or complex element -->
wolffd@0: 	<!-- and a list of attributes as described in the commonAttributes attributeGroup -->
wolffd@0: 	<xs:element name="sparse">
wolffd@0: 		<xs:complexType>
wolffd@0: 			<xs:sequence minOccurs="0">
wolffd@0: 				<xs:element ref="double" minOccurs="2" maxOccurs="2" />
wolffd@0: 				<xs:choice>
wolffd@0: 					<xs:element ref="double" minOccurs="1" maxOccurs="1" />
wolffd@0: 					<xs:element ref="complex" minOccurs="1" maxOccurs="1" />
wolffd@0: 				</xs:choice>
wolffd@0: 			</xs:sequence>
wolffd@0: 			<xs:attributeGroup ref="commonAttributes" />
wolffd@0: 		</xs:complexType>
wolffd@0: 	</xs:element>
wolffd@0: 	<!-- cell element definition -->
wolffd@0: 	<!-- cell contains cell entities -->
wolffd@0: 	<!-- A cell element contains 0 or more struct, double, char, sparse, cell or complex elements -->
wolffd@0: 	<!-- These child elements may appear in any order -->
wolffd@0: 	<!-- A cell element contains a list of attributes as described in the commonAttributes attributeGroup -->
wolffd@0: 	<xs:element name="cell">
wolffd@0: 		<xs:complexType>
wolffd@0: 			<xs:choice minOccurs="0" maxOccurs="unbounded">
wolffd@0: 				<xs:element ref="struct" />
wolffd@0: 				<xs:element ref="double" />
wolffd@0: 				<xs:element ref="char" />
wolffd@0: 				<xs:element ref="sparse" />
wolffd@0: 				<xs:element ref="cell" />
wolffd@0: 				<xs:element ref="complex" />
wolffd@0: 			</xs:choice>
wolffd@0: 			<xs:attributeGroup ref="commonAttributes" />
wolffd@0: 		</xs:complexType>
wolffd@0: 	</xs:element>
wolffd@0: 	<!-- complex element  definition -->
wolffd@0: 	<!-- complex contains complex numbers a+ib with real part a and imaginary part b, which are both represented by entries of type double -->
wolffd@0: 	<!-- A complex element contains a list of either 2 or 0 double elements -->
wolffd@0: 	<!-- and a list of attributes as described in the commonAttributes attributeGroup -->
wolffd@0: 	<xs:element name="complex">
wolffd@0: 		<xs:complexType>
wolffd@0: 			<xs:sequence>
wolffd@0: 				<xs:element name="double" minOccurs="2" maxOccurs="2">
wolffd@0: 					<xs:complexType>
wolffd@0: 						<xs:simpleContent>
wolffd@0: 							<xs:extension base="nonEmptyListOfXsdDoubles">
wolffd@0: 								<xs:attributeGroup ref="commonAttributes" />
wolffd@0: 							</xs:extension>
wolffd@0: 						</xs:simpleContent>
wolffd@0: 					</xs:complexType>
wolffd@0: 				</xs:element>
wolffd@0: 			</xs:sequence>
wolffd@0: 			<xs:attributeGroup ref="commonAttributes" />
wolffd@0: 		</xs:complexType>
wolffd@0: 	</xs:element>
wolffd@0: 	<!-- commonAttributes is a list of attributes that all struct, double, char, sparse and cell elements have -->
wolffd@0: 	<xs:attributeGroup name="commonAttributes">
wolffd@0: 		<xs:attribute name="idx" type="xs:integer" use="required" />
wolffd@0: 		<xs:attribute name="name" type="xs:string" use="optional" />
wolffd@0: 		<xs:attribute name="size" type="listOfXsdInts" use="optional" default="1 1" />
wolffd@0: 		<!-- idx indicates what position in the parent array this element belongs. For root element i="0" -->
wolffd@0: 		<!-- name represents the name of the current element inside a structure -->
wolffd@0: 		<!-- name only occurs in elements inside a structure, although this schema does not enforce this rule -->
wolffd@0: 		<!-- size represents the size of the entry. It allows Matlab to form matrices from vectors with reshape() -->
wolffd@0: 	</xs:attributeGroup>
wolffd@0: 	<!-- structAttributes is a list of attributes that all struct elements have -->
wolffd@0: 	<xs:attributeGroup name="structAttributes">
wolffd@0: 		<xs:attributeGroup ref="commonAttributes" />
wolffd@0: 		<xs:attribute name="fields" type="listOfXsdStrings" use="optional" />
wolffd@0: 		<!-- Include all the attributes in commonAttributes -->
wolffd@0: 		<!-- fields contains the field names of a structure. -->
wolffd@0: 	</xs:attributeGroup>
wolffd@0: 	<!-- listOfXsdDoubles is a type describing a list of xs:doubles -->
wolffd@0: 	<!-- i.e. a double as defined by the XML Schema specification, not matlab.xsd -->
wolffd@0: 	<xs:simpleType name="listOfXsdDoubles">
wolffd@0: 		<xs:list itemType="xs:double" />
wolffd@0: 	</xs:simpleType>
wolffd@0: 	<!-- nonEmptyListOfXsdDoubles is a type describing a list of xs:doubles -->
wolffd@0: 	<!-- with length at least 1 -->
wolffd@0: 	<xs:simpleType name="nonEmptyListOfXsdDoubles">
wolffd@0: 		<xs:restriction base="listOfXsdDoubles">
wolffd@0: 			<xs:minLength value="1" />
wolffd@0: 		</xs:restriction>
wolffd@0: 	</xs:simpleType>
wolffd@0: 	<!-- listOfXsdInts is a type describing a list of integers -->
wolffd@0: 	<xs:simpleType name="listOfXsdInts">
wolffd@0: 		<xs:list itemType="xs:int" />
wolffd@0: 	</xs:simpleType>
wolffd@0: 	<!-- listOfXsdStrings is a type describing a list of strings -->
wolffd@0: 	<xs:simpleType name="listOfXsdStrings">
wolffd@0: 		<xs:list itemType="xs:string" />
wolffd@0: 	</xs:simpleType>
wolffd@0: </xs:schema>