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Feb 2009 -- Due to time pressures, the ongoing development of 'rope' has been suspended temporarily.

ROPE Language Reference - "swap"

The "swap" action swaps the top two items on the stack. So: if the stack contains

 1 2 "three" 4

then calling the "swap" action swaps the 4 and the "three" around so that stack now looks like this..

 1 2 4 "three"