anchor.diff:  e_initscr() ->
       not_initialized.
   
  -e_cbreak() -> 
  -    not_initialized.
  -
  -e_nocbreak() -> 
  -    not_initialized.
  -
  -e_echo() -> 
  -    not_initialized.
  -
  -e_noecho() -> 
  +e_cbreak() ->
  +    not_initialized.
  +
  +e_nocbreak() ->
  +    not_initialized.
  +
  +e_echo() ->
  +    not_initialized.
  +
  +e_noecho() ->
       not_initialized.
   
   e_erase() ->
  
positive.code:         newwin/4,
          nl/0,
          nocbreak/0,
          noecho/0, 
          nonl/0,
          refresh/0,
          refresh/1,
  
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).
  