X.A.WindowNavigation: implement swap, extract withTargetWindow commonality
X.A.WindowNavigation: implement swap, extract withTargetWindow commonality

Why doesn't mapWindows exist already?

darcs-hash:20080512064715-78224-61fd294027e65d7db5675e7879b2e79c1ba524da

yzhou61/xmonad-contrib,yzhou61/xmonad-contrib,yzhou61/xmonad-contrib