[Haskell-cafe] Re: capture of idioms and patterns

[Johannes Waldmann]

> - are there any prior art in documenting idioms and patterns in FP [...]

you got this backwards: what some folks call "idioms and (design) patterns"
actually *is* FP, because it is just this: higher order functions.
And it's been there some decades (lambda calculus).
That also explains the absence of any Design Patterns/Gang-of-Four 
kind of book for Haskell - it's just not needed. 
(as you say, map and fold are your patterns.)

Best - J.W.