code: protected String handleParens(String group, String prefix, String suffix, boolean debugPrint) {
          return prefix + group + suffix;
      }
docs: This base version simply returns a String consisting of the <i>prefix</i>,
  <i>group</i>, and <i>suffix</i> concatenated (in that order); however,
  it may be overridden to do something more complicated, to make sure that
  the prefix and suffix go in the right place, relative to any parentheses
  found in the group.