public class XPathExpression
{
	DOM_Document XML_DOM; 
	Array of Strings XPathLocationStepStringsArray;
	Array of XPathLocationSteps XPathLocationStepsArray;
	Array of Nodes ResultNodeSet;

	//constructor 
	XPathExpression (string XMLFile, string XPathExpression)
	{
		XML_DOM = XMLFile loaded into a DOM;
		XPathLocationStepStringsArray =
			Tokenize XPath expression into smaller strings, 
			where each string is a location step.
			Also unabbreviate any XPath abbreviations found;
		Integer locationStepCount = Number of location step strings 
			in XPathLocationStepStringsArray;
		String IndividualXPathLocationStepString;
		XPathLocationStep IndividualXPathLocationStep;
		ResultNodeSet = XML_DOM;
		Repeat locationStepCount times from i = 0 to locationStepCount-1:
		{
			IndividualXPathLocationStepString = 
				XPathLocationStepStringsArray[i];
			IndividualXPathLocationStep = 
				a new object of XPathLocationStep(
					IndividualXPathLocationStepString);
			ResultNodeSet = IndividualXPathLocationStep.getResult(
				ResultNodeSet);
		}
	}//constructor


	public Array of nodes getResult()
	{
		return ResultNodeSet;
	}//getResult
	
}//class