Copyright (C) 2001, Geert Vernaeve. All Rights Reserved. 

package gve.calc.logic;

import gve.calc.formula.*;

public class MultipleMatched implements Matched {
	private Part []tomatch;
	private Part []pattern;
	private Matched action;
	private Matcher matcher;
	private int count = 0;

	public MultipleMatched(Part []tomatch,Part []pattern,Matched action,Matcher m) {
		if (tomatch.length != pattern.length)
			throw new Error("tomatch[] and pattern[] have different lengths");
//System.out.println("MultipleMatched with "+pattern.length+" matches");
		this.tomatch = tomatch;
		this.pattern = pattern;
		this.action = action;
		matcher = m;
	}

	
 Match tomatch[i] to pattern[i]. When all of them match, call action.foundMatch(). 
	public boolean match() {
		return foundMatch(matcher);
	}

	public boolean foundMatch(Matcher m) {
		// Try to match tomatch[count] with pattern[count]
		if (count == tomatch.length)
			// found a match!
			return action.foundMatch(m);
		count++;
//System.out.println("multiplematch: match "+(count-1));
		boolean result = m.match(tomatch[count-1],pattern[count-1],this);
//System.out.println("multiplematch: match "+(count-1)+" is "+result);
		count--;
		return result;
	}
}