code: public SyndFeed build(final Reader reader) throws IllegalArgumentException, FeedException {
          return new SyndFeedImpl(feedInput.build(reader), preserveWireFeed);
      }
docs: Builds SyndFeedImpl from an Reader.
  <p>
  
  @param reader Reader to read to create the SyndFeedImpl.
  @return the SyndFeedImpl read from the Reader.
  @throws IllegalArgumentException thrown if feed type could not be understood by any of the
  underlying parsers.
  @throws FeedException if the feed could not be parsed