Kawa also supports #|...|# comments.  In fact that's its
default prompt:

#|kawa:1|# (define xx
#|(---:2|#   20)
#|kawa:3|#

Using a comment as a prompt allows cutting and pasting of
multiple lines.  (Assuming there is no output intermingled.)

Also of course Common Lisp has #|...|#.
--
	--Per Bothner
xxxxxx@bothner.com   http://www.bothner.com/per/