package OT;

import java.util.*;

/**
 * Hierarchy of constraints.
 * @version 1999-03-31
 * @author Andrea Heiberg, University of Arizona
*/
public class Hierarchy extends Vector {
	LanguageFeatureTypeSet languageFeatureTypeSet;

	public Hierarchy (LanguageFeatureTypeSet languageFeatureTypeSet) {
		this.languageFeatureTypeSet = languageFeatureTypeSet;
	} //end constructor

	/** Parse raw data into constraint hierarchy. */
	public void parseRawData(Vector rawLines) {
		FeatureType featureType1;
		FeatureType featureType2;

		//rawLines (input) is a vector of lines
		//textLine is a vector of "words"
     		for (Enumeration e = rawLines.elements(); e.hasMoreElements();) {
			Vector textLine = (Vector)e.nextElement();
			for (Enumeration f = textLine.elements(); f.hasMoreElements();) {
		 		String ct = (String)f.nextElement();
		 		if (ct.equals("FeatureLinearity")) {
					super.addElement(new FeatureLinearity());
				} else {
					//feature type-specific constraint
		 			f.nextElement(); //skip "featuretype"
		 			String ft = (String)f.nextElement();
		 			String anchor = (String)f.nextElement();
		 			featureType1 = new FeatureType(ft,anchor);
		 			
		 			if (ct.equals("AlignFeature")) {
						Edge edge = new Edge((String)f.nextElement());
						super.addElement(new AlignFeature(featureType1,edge));
						
					} else if (ct.equals("AlignPrWd")) {
						Edge edge = new Edge((String)f.nextElement());
						super.addElement(new AlignPrWd(featureType1,edge));
		 		
					} else if (ct.equals("MAX-A")) {
						super.addElement(new MaxA(featureType1));

					} else if (ct.equals("MAX-F")) {
						super.addElement(new MaxF(featureType1));
						
					} else if (ct.equals("DEP-A")) {
						super.addElement(new DepA(featureType1));

					} else if (ct.equals("DEP-F")) {
						super.addElement(new DepF(featureType1));
						
					} else if (ct.equals("GroundPositive")) {
						f.nextElement(); //skip "featuretype"
		 				String ft2 = (String)f.nextElement();
		 				String anchor2 = (String)f.nextElement();
		 				featureType2 = new FeatureType(ft2,anchor2);
						super.addElement(new GroundPositive(featureType1,featureType2));
	
					} else if (ct.equals("GroundNegative")) {
						f.nextElement(); //skip "featuretype"
		 				String ft2 = (String)f.nextElement();
		 				String anchor2 = (String)f.nextElement();
		 				featureType2 = new FeatureType(ft2,anchor2);
						super.addElement(new GroundNegative(featureType1,featureType2));
					
					} else if (ct.equals("*Float")) {
						super.addElement(new NoFloat(featureType1));
					} //end if
				} // end if
			} //end for
		} // end for

		super.trimToSize();
	} //end parseRawData 
	
}