applicative-quoters provides two quasiquoters to be used with applicative functors: a do-notation-alike, ado, and an attempt to emulate Conor McBride's idiom brackets. They are originally taken from Matt Morrow's haskell-src-meta package, before he disappeared forever and I took up maintainership of it. However, I no longer maintain it, since it is unused even by me. If you're interested in keeping it updated, feel free to take over.
bmillwood/applicative-quoters
(no longer maintained) Quasiquoters for working with Control.Applicative, taken from haskell-src-meta
HaskellBSD-3-Clause