code: public static String getLocationString(Attributes attrs) {
  		String src = attrs.getValue(URI, SRC_ATTR);
  		if (src == null) {
  			return LocationUtils.UNKNOWN_STRING;
  		}
  		return src + ":" + attrs.getValue(URI, LINE_ATTR) + ":" + attrs.getValue(URI, COL_ATTR);
  	}
docs: Returns the location of an element (SAX flavor). If the location is to be
  kept into an object built from this element, consider using
  {@link #getLocation(Attributes, String)} and the {@link Locatable}
  interface.
  
  @param attrs
  the element's attributes that hold the location information
  @return a location string as defined by {@link Location}.