@Override
    public String getName() {
        return "id references";
    }
Checks that the value is a proper list of HTML5 ids.
@param literal the value
@throws DatatypeException if the value isn't valid
@see org.relaxng.datatype.Datatype#checkValid(java.lang.String, org.relaxng.datatype.ValidationContext)
src/nu/validator/datatype/Idrefs.java