Syntax proof-of-concept for XML library

Xmldemo.java

public class Demo {

    private static Object baseUrl;

    public static void main(String[] args) {
        Namespace SOAP_NS = new Namespace("http://soap.com", "SOAP");
        Namespace MSG_NS = new Namespace("http://msg.com", "msg");
        TagName envelopeTag = SOAP_NS.tag("Envelope");

        Element envelope = envelopeTag.create(
                SOAP_NS.el("Header"),
                SOAP_NS.el("Body",
                    MSG_NS.el("foo",
                            MSG_NS.el("bar", "fifteen"),
                            MSG_NS.el("bar", "sixteen").attr("a", "1"),
                            MSG_NS.el("bar", "seventeen").attr("a", "2"),
                            MSG_NS.el("a", "Link text").attr(MSG_NS.attribute("href", "http://link")),
                            MSG_NS.el("div").attr("id", "divId")))
                            .namespace(MSG_NS));

        System.out.println(envelope.toString());
        System.out.println(envelope.toFormattedString());

        List<String> texts = envelope.find(envelopeTag, SOAP_NS.tag("Body"))
                .find(MSG_NS.tag("foo"), MSG_NS.tag("bar")).texts();
        System.out.println(texts);

        List<String> attrs = envelope.find("Envelope", "SOAP:Body", MSG_NS.tag("foo"), MSG_NS.tag("bar")).attrs("a");
        System.out.println(attrs);

        envelope.find(envelopeTag, SOAP_NS.tag("Body"))
            .find(MSG_NS.tag("foo"), MSG_NS.tag("bar")).get(2).deleteElements();
        System.out.println(texts);

        envelope.find("Envelope", "Body", SOAP_NS.tag("foo")).checkPath();

        Element html = Element.el("div",
                Element.textEl("Hello there, what "),
                Element.el("em", "is").attr("id", "something"),
                Element.textEl(" going on "),
                Element.el("a", "here?").attr("href", "http://www.google.com").attr("class", "link"));

        System.out.println(html.toFormattedString());
        html.find("...", ".something").text("would be");
        html.find("...", "#link").attr("foo", "bar");
        html.find("...", "a#link").text("there");

        html.find("#form", "#first_name").val("Johannes");
        html.find("#form", "#last_name").val("Brodwall");
        String url = baseUrl + "?" + HtmlSupport.toUrlQueryString(html.find("#form"));
    }


}