code: public String[][] load(String[][] options, DocErrorReporter errorReporter) {
          LinkedList<String[]> optionsList = new LinkedList<>(Arrays.asList(options));
          Iterator<String[]> optionsIter = optionsList.iterator();
          while ( optionsIter.hasNext() ) {
              String[] opt = optionsIter.next();
              if ( !handleOption(optionsIter, opt, errorReporter) ) {
                  return null;
              }
          }
          if ( pegdownExtensions == null ) {
              setPegdownExtensions(DEFAULT_PEGDOWN_EXTENSIONS);
          }
          return optionsList.toArray(new String[optionsList.size()][]);
      }
docs: Loads the options from the command line.
  
  @param options          The command line options.
  @param errorReporter    The error reporter for printing messages.
  
  @return The options to be forwarded to the standard doclet.