On 02/27/2016 08:35 PM, Henk-Jan van Tuyl wrote:
Even better if the 3-char clunky >>> is reduced to the 1-char ⋙ map group ⋙ group ⋙ map cols ⋙ ungroup ⋙ map ungroup (From Control.Arrow.Unicode)
You can also use & from Data.Function (since base 4.8.0.0) map group & group & map cols & ungroup & map ungroup
I would love to hear the elevator pitch for making "and" mean "backwards function application". Might as well go full retard: boxes m = m & ((⋘ ungroup . map cols <<< group >>> map group) $ map ungroup) As you can see, it gets more clear the more operators you use. Note that (&) isn't backwards composition -- it's backwards application. So it's analogous to "$" and not the "." operator. You can just google "&" to find that out though.