Yep, that'll do it! Alright, so we've established how to replicate (!) and (!?) using lens; what about (!!) and (!!?)? Those were the ones that gave me typing trouble. Also, I'm still interested in auto-deriviation of Ixed/Keyed instances for all Vector types through Vector.Generic. Thanks, Will On Thu, Aug 13, 2015 at 11:29 PM, Tom Ellis < tom-lists-haskell-cafe-2013@jaguarpaw.co.uk> wrote:
On Thu, Aug 13, 2015 at 10:31:53PM -0700, William Yager wrote:
it only provides a substitute for "!?", not "!". (Or at least, I couldn't figure out how to get "!" behavior cleanly.)
(Don't you want ^?!)?
http://haddock.stackage.org/lts-3.0/microlens-0.2.0.0/Lens-Micro.html#v:-94-...
and also available in Control.Lens.
Tom _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe