http://l3tczdiiwoo63iwxty4lhs6p7eaxop5micbn7vbliydgv63x5zrrrfyd.onion/4.0.0/user-manual/appendix.html
                                
                                
                                                                            (which is now a literal, and not a special
      character, since it is escaped with "\" ), and lastly either "gif" , or "jpeg" , or "jpg" . Some possible
      matches would include: "//advert1.jpg" , "/nasty/ads/advert1234.gif" , "/banners/from/hell/advert99.jpg" . It
      would not match "advert1.gif" (no leading slash), or "/adverts232.jpg" (the expression does not include an "s" ), or "/advert1.jsp" ( "jsp" is not in the expression
 ...