Opening selected commit range

[The-Compiler]

trafficstars

When invoking github-browse-file with a range of commits selected in e.g. magit-log, it'd be nice to open /compare/rev_a...rev_b instead, to take you to the compare view.

I'm not sure whether that's possible, though. I took a quick look at this and magit - and while I've not really written much lisp so far, I can't find anything like magit-commits-in-mark or so in magit. Am I missing something, or would magit first need something like that?