cdm/src/main/java/ucar/nc2/util/EscapeStrings.java
public static String unescapeDAPIdentifier(String id) {
    String s;
    try {
      s = unescapeString(id);
    } catch (Exception e) {
      s = null;
    }
    return s;
  }
public static String unescapeDAPIdentifier(String id) {
    String s;
    try {
      s = unescapeString(id);
    } catch (Exception e) {
      s = null;
    }
    return s;
  }
Define the DEFINITIVE opendap identifier unescape function.

@param id The identifier to unescape.
@return The unescaped identifier.