Here's how I do it.
Lot -->
extrude(5)
#comp(f){all: Texture} #this would texture everything;
#the stuff below addresses every side on its own. side: also works, to address all sides.
comp(f){
left: rc |
right: rc |
top: Texture |
bottom: rc |
front: rc |
back: rc
}
Texture -->
setupProjection(0, scope.xy, 1, 1)
texture("images/bricks.jpg")
projectUV(0)
rc --> color(rand,rand,rand)