How to use

quote

method

in

com.yahoo.javacc.UnicodeUtilities

public static String quote(String str, char quote) {
  return UnicodeUtilities.quote(str, quote);
}

/**
 * Returns a string representation of an object that can be used in the 'image' constructor argument of {@link
 * GroupingNode}. This method ensures that strings are quoted, and that all complex characters are escaped.
 *
 * @param obj The object to output.
 * @return The string representation.
 */
public static String asImage(Object obj) {
  if (!(obj instanceof String)) {
    return obj.toString();
  }
  return UnicodeUtilities.quote((String)obj, '"');
}