( Initializes the readln subsystem )
: RDLN$
    H@ 0x32 ( IN(* ) RAM+ !
    ( plus 2 for extra bytes after buffer: 1 for
      the last typed 0x0a and one for the following NULL. )
    IN) IN( - ALLOT
    (infl)
    ['] RDLN< ['] C<* **!
    1 0x06 RAM+ !  ( 06 == C<? )
;