anchor.diff:                              pos_fname = ""
                               pos_lnum = 0
                               pos_bol = 0
  -                            pos_cnum = x.pos_cnum + 1 //!lexbuf.CountPosLine
  +                            pos_cnum = x.pos_cnum + 1
                               back_ref = edg.BackRef.Value
                       }
   
  
positive.code:     //      30 entries, one for each UnicodeCategory
      //      1 entry for EOF
  
  
      member tables.Tokenize(actions,g, ?printG) =
          inputGraph actions g (match printG with Some f -> f | _ -> fun x y -> ())
      static member Create(trans,accept) = new UnicodeTables(trans,accept)
  
negative.code:                             , ResizeArray.concat [i.AccumulatedString; ResizeArray.singleton ch]
                              , ResizeArray.concat [ResizeArray.singleton pos; i.Positions])
                      )
              else 
                  new StateInfo<_,'br>(edg.Source, ResizeArray.singleton ch, ResizeArray.singleton (newPos None))
                  |> ResizeArray.singleton
  