format(nodes as List)
    }

    def formatTree(Node... nodes) {
        formatTree(nodes as List)
    }

    def formatTree(Iterable<? extends Node> nodes) {
        format(nodes, true)
    }

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

        if (!current) {
            elements << (Element) document.importNode(node, true)
        } else  {
            current.appendChild(document.importNode(node, true))
        }
    }

    def appendChildren(Iterable<? extends Node> nodes) {
        nodes.each { appendChild(it) }
    }

    def appendChildren(NodeList nodes) {
        nodes.each { appendChild(it) }
    }

    def text(String text) {