}

    def format(Iterable<? extends Node> nodes, boolean prettyPrint = false) {
        StringBuilder builder = new StringBuilder()
        nodes.each { node ->
            format(node, builder, 0, prettyPrint, prettyPrint)
        }
        return builder.toString()
    }

    def format(Node node, Appendable target, int depth, boolean prettyPrint, boolean indentSelf) {
        if (node instanceof Element) {

    <function-signature>java.lang.String formatCode(java.lang.String, java.lang.String, java.lang.String, java.lang.String)</function-signature>
    <example>${fe:formatCode("L", "prettyprint", doc.mimetype, doc.content_description)}</example>
  </function>

  <function>
    <description>Mask e-mail address.</description>
    <name>maskEmail</name>

            throw new GradleException("filter isn't ready to transform");
        }

        Document document = Jsoup.parse(CharStreams.toString(in));
        document.outputSettings().indentAmount(2).prettyPrint(true);
        document.prependChild(new DocumentType("html", "", ""));
        document.head().
                append("<meta charset='utf-8'>").