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-- @name		XML2
-- @version		1.0
-- @domains		XML technology
-- @authors		Frédéric Jouault
-- @date		2007/05/28
-- @description	This metamodel defines XML concepts in a way that makes TCS usable (i.e., by separating child attributes from child elements and text nodes).
package XML2 {

	abstract class LocatedElement {
		attribute location[0-1] : String;
		attribute commentsBefore[*] ordered : String;
		attribute commentsAfter[*] ordered : String;
	}

	abstract class Node extends LocatedElement {
		reference parent[0-1] : Element oppositeOf children;
	}

	class Attribute extends LocatedElement {
		attribute prefix[0-1] : String;
		attribute name : String;
		attribute value : String;
		reference owner : Element oppositeOf attributes;
	}

	class Text extends Node {
		attribute value : String;
	}

	class Element extends Node {
		attribute prefix[0-1] : String;
		attribute name : String;
		reference attributes[*] ordered container : Attribute oppositeOf owner;
		reference children[*] ordered container : Node oppositeOf parent;
	}

	class Root extends Element {}
}

package PrimitiveTypes {
	datatype Boolean;
	datatype Integer;
	datatype String;
}