String alt        = el.getAttribute("alt"); String fontFamily = el.getAttribute("fontfamily"); String index      = el.getAttribute("index");
String alt        = Model::getAttribute(el, "alt"); String fontFamily = Model::getAttribute(el, "fontfamily"); String index      = Model::getAttribute(el, "index");
  update_MathML_mglyph_Node(const typename Model::Element& el) const  {    assert(el);        String alt        = el.getAttribute("alt");    String fontFamily = el.getAttribute("fontfamily");    String index      = el.getAttribute("index");        if (alt.empty() || fontFamily.empty() || index.empty())      {	Globals::logger(LOG_WARNING, "malformed `mglyph' element (some required attribute is missing)\n");	return MathMLStringNode::create("?");      }        return MathMLGlyphNode::create(fontFamily, index, alt);  }