* @param name
   * @param namespace
   * @return String
   */
  public static String xmlLookupAttribute(Cons attributes, String name, String namespace) {
    while (!(attributes == Stella.NIL)) {
      if (((XmlAttribute)(attributes.value)).xmlAttributeMatchP(name, namespace)) {
        return (StringWrapper.unwrapString(((StringWrapper)(attributes.rest.value))));
      }
      attributes = attributes.rest.rest;
    }
    return (null);
  }