(if (eof-object? x) (do-nothing) (display message) )
PLT Scheme requires that (if ...) must have an else clause, which seems to be non-standard.
In my working version, (do-nothing) is replaced by (display ""). (begin) is illegal. '() gets displayed on screen, which I don't want.
Am I not thinking Lispily (or Schemingly) enough, or is there some way to tell PLT Scheme to do nothing and to move along?
P.S. Oh no—another learning experience! :-) Thanks, everyone.