f := strings.Join(w.scope, ", ") + ", " + fmt.Sprintf(format, args...)
	if strings.Contains(f, "\n") {
		panic("feature contains newlines: " + f)
	}

	if _, dup := w.features[f]; dup {
		panic("duplicate feature inserted: " + f)
	}
	w.features[f] = true

	if verbose {
		log.Printf("feature: %s", f)
	}
}

func needApproval(filename string) bool {

                + "<a href=\"http://example.com/bbb\">link2</a>" + "<a href=\"http://example.com/aaa\">link1 dup</a>"
                + "<a href=\"http://example.com/ccc\">link3 dup</a>" + "</body></html>";
        final Document document = getDocument(data);

        final FessXpathTransformer transformer = createAnchorListTransformer();