Hi --

I have list, @x, that is actually a flattened list triples:

 
@x = (( $x1a, $x1b, $x1c), ( $x2a, $x2b, $x2c), ( $x3a, $x3b, $x3c), .
+.. etc ... ($xna, $xnb, $xnc));
[download]

What's the nice perlish to map this back to an LOL of triples:

 
[[$x1a, $x1b, $x1c], [$x2a, $x2b, $x2c], [$x3a, $x3b, $x3c], ... etc .
+.. [$xna, $xnb, $xnc]]
[download]

I'm using an explicit loop with three  shifts to pull off the elements by threes. It works, but I'd like to learn the more idiomatic perlish solution. Thanks for the insight --

bottled water