SingleHtmlChapterGenerator singleHtmlChapterGenerator = new SingleHtmlChapterGenerator(parser, cfg, new ArrayList<String>());
Chapter c = createChapter("introducao", "[section primeira] conteudo da primeira "
+ "\n[section segunda] conteudo da segunda");
Book book = new BookBuilder("some name", new SectionsManager()).build();
new HtmlModule().inject(book);
new HtmlModule().inject(c);
String string = singleHtmlChapterGenerator.generateSingleHtmlChapter(book, c).toString();