... or the deleterious effects of insomnia.

i decided to see how hard this is.  after considering "shift var", 
and hd and tl, i added ranges to rc, as in

	cpu% 8.out
	broken! a=(1 2 3 4)
	broken! echo $a(1 4)
	1 4
	broken! echo $a(2-3)
	2 3
	broken! echo $a(2-)
	2 3 4
	broken! fn myshift{echo $*; '*' = $*(2-) ; echo $*}
	broken! myshift 1 2 3 4 5
	1 2 3 4 5

less than 20 lines of code.  (attached so you can avert your eyes.)

- erik