/*
 * call-seq:
 *  original_content
 *
 * Get the original_content before ref substitution
 */
static VALUE original_content(VALUE self)
{
  xmlEntityPtr node;
  Data_Get_Struct(self, xmlEntity, node);

  if(!node->orig) return Qnil;

  return NOKOGIRI_STR_NEW2(node->orig);
}