anchor.diff:  
   %% cbreak
   
  -cbreak() -> 
  +cbreak() ->
       e_cbreak().
   
   nocbreak() ->
  
positive.code: e_keypad(_Win, _Flag) ->
      not_initialized.
  
  e_wgetch(_Pid,_Win) ->
      not_initialized.
  
negative.code: 
  %% border
  
  border(Ls, Rs, Ts, Bs, TLs, TRs, BLs, BRs)
    when is_integer(Ls) andalso is_integer(Rs) andalso
          is_integer(Ts) andalso is_integer(Bs) andalso is_integer(TLs) andalso
          is_integer(TRs) andalso is_integer(BLs) andalso is_integer(BRs) ->
      e_border(Ls, Rs, Ts, Bs, TLs, TRs, BLs, BRs).
  
  border(Win, Ls, Rs, Ts, Bs, TLs, TRs, BLs, BRs)
    when is_integer(Win) andalso is_integer(Ls) andalso
          is_integer(Rs) andalso is_integer(Ts) andalso is_integer(Bs) andalso
          is_integer(TLs) andalso is_integer(TRs) andalso is_integer(BLs) andalso
          is_integer(BRs) ->
      e_wborder(Win, Ls, Rs, Ts, Bs, TLs, TRs, BLs, BRs).
  