Re: [Haskell-cafe] Best way to return Bool based on a successful pattern match?

A nice idea! It can be helpful in some cases, although usually I have more complex patterns, for example "get all DataDefinitions from a list of TopLevelDefinitions parsed from a .hs file" or "filter all KeyPresses directed to a particular window from an Event stream". On 07/13/2015 04:24 PM, Adam Bergmark wrote:

Perhaps this is of interest to you, http://hackage.haskell.org/package/generic-maybe

HTH, Adam

-- Nikolay.