Hi Cafe, I'm wondering if there's any existing packages that do "version sorting": as an example, for a list like: ["foo-10.20", "foo-1.2", "foo-2.100", "foo-1.12"] I'd like the result to be: ["foo-1.2", "foo-1.12", "foo-2.100", "foo-10.20"] I could think of an implementation that turns String elements of a list into [Either Int String] by grouping consecutive chunks using span and isDigit and then do a sortOn: versionSort :: [String] -> [String] versionSort = sortOn brkND where tr f g (x,y) = f x : g y -- ND for non-digits brkND = tr Right brkD . span (not . isDigit) brkD = tr (Left . read @Int) brkND . span isDigit (side question: does the helper function tr I defined above have a commonly known name?) just wondering if there are more sophisticated solutions available. Best, Javran