code: public String asString(final String format) {
          try {
              return format(EnglishEnums.valueOf(MapFormat.class, format), new StringBuilder()).toString();
          } catch (final IllegalArgumentException ex) {
              return asString();
          }
      }
docs: Formats the Structured data as described in <a href="https://tools.ietf.org/html/rfc5424">RFC 5424</a>.
  
  @param format The format identifier.
  @return The formatted String.