/**
  * @author Jeff
  *
  * Copyright (c) 復制或轉載本文，請保留該注釋。
  */
package chinese.utility;

import java.util.Comparator;

public class StrokeComparator implements Comparator<String> {

    public int compare(String o1, String o2) {

        Chinese chinese = new Chinese();

        for (int i = 0; i < o1.length() && i < o2.length(); i++) {
            int codePoint1 = o1.codePointAt(i);
            int codePoint2 = o2.codePointAt(i);
            if (codePoint1 == codePoint2)
                continue;

            int stroke1 = chinese.stroke(codePoint1);
            int stroke2 = chinese.stroke(codePoint2);

            if (stroke1 < 0 || stroke2 < 0) {
                return codePoint1 - codePoint2;
            }

            if (stroke1 != stroke2) {
                return stroke1 - stroke2;
            }
        }

        return o1.length() - o2.length();
    }
}