@Roundtrip @arclight @mhoye @jimfl
Mine's not that fancy. I could probably implement something like that. But that's one of those cases where the time sunk into the implementation non-usefully excedes the time spent doing it the old fashioned way. (There was a time when I might have implemented something like that just for the sport of it. But I'm old & tired, & mostly on a quest to reduce as much as I can to Stone Knives & Bearskins.)