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repeat function

Any ideas on how to implement a repeat funtion. I got as far
as:

es>	fn repeat n args {
+		while {!~ $n 0} {
+			$args
+			n = `{expr $n - 1}
+		}
+	}

but its a bit slow ... :(

Dave.

 o===============================================o  +----+
  David McNicol,        | Strathclyde University,   |    |
  3rd Yr Laser Physics, | SCOTLAND.                 |/--\| "I'm sorry Dave,
 o===============================================o  ||[]||  but I'm afraid
  Internet: D.McNicol@ccsun.strath.ac.uk  !talk !   |\--/|  I can't do that"
     JANET: D.McNicol@uk.ac.strath.ccsun  !to me!   |    |
 o===============================================o  +----+