package Question17_10;

public class QuestionOO {

public static void encode(String v, StringBuffer sb) {

v = v.replace("0", "\\0");

sb.append(v);

sb.append(" ");

}

public static void encodeEnd(StringBuffer sb) {

sb.append("0");

sb.append(" ");

}

public static void encode(Attribute attr, StringBuffer sb) {

encode(attr.getTagCode(), sb);

encode(attr.value, sb);

}

public static void encode(Element root, StringBuffer sb) {

encode(root.getNameCode(), sb);

for (Attribute a : root.attributes) {

encode(a, sb);

}

encodeEnd(sb);

if (root.value != null && root.value != "") {

encode(root.value, sb);

} else {

for (Element e : root.children) {

encode(e, sb);

}

}

encodeEnd(sb);

}

public static String encodeToString(Element root) {

StringBuffer sb = new StringBuffer();

encode(root, sb);

return sb.toString();

}

public static void main(String args[]) {

Element root = new Element("family");

Attribute a1 = new Attribute("lastName", "0");

Attribute a2 = new Attribute("state", "CA");

root.insert(a1);

root.insert(a2);

Element child = new Element("person", "Some Message");

Attribute a3 = new Attribute("firstName", "Gayle");

child.insert(a3);

root.insert(child);

String s = encodeToString(root);

System.out.println(s);

}

}