boolean (final XmlTag tag) { final String name = StringUtil.toLowerCase(tag.getName()); return tag.getLanguage() == XMLLanguage.INSTANCE || "link".equals(name) || "br".equals(name) || "meta".equals(name) || "img".equals(name) || "input".equals(name) || "hr".equals(name) || XmlExtension.isCollapsible(tag); }