name:                   between
version:                0.9.0.2
synopsis:               Function combinator "between" and derived combinators
description:
  It turns out that this combinator
  .
  > f ~@~ g = (f .) . (. g)
  .
  is a powerful thing. It was abstracted from following (commonly used)
  pattern @f . h . g@ where @f@ and @g@ are fixed.
  .
  This library not only define @~\@~@ combinator, but also some derived
  combinators that can help us to easily define a lot of things including
  lenses. See <http://hackage.haskell.org/package/lens lens package> for
  detais on what lenses are.
  .
  Function @Data.Function.on@ can be implemented using @~\@~@ as:
  .
  > on :: (b -> b -> c) -> (a -> b) -> a -> a -> c
  > on f g = (id ~@~ g ~@~ g) f
  .
  If function @on3@ existed in /base/ then it could be defined as:
  .
  > on3 :: (b -> b -> b -> d) -> (a -> b) -> a -> a -> a -> d
  > on3 f g = (id ~@~ g ~@~ g ~@~ g) f
  .
  Other usage examples and documentation can be found in
  "Data.Function.Between".

homepage:               https://github.com/trskop/between
bug-reports:            https://github.com/trskop/between/issues
license:                BSD3
license-file:           LICENSE
author:                 Peter Trško
maintainer:             peter.trsko@gmail.com
copyright:              (c) 2013, 2014 Peter Trško
category:               Data
build-type:             Simple
cabal-version:          >=1.8

extra-source-files:
    README.md
  , ChangeLog.md

flag pedantic
  description:
    Pass additional warning flags including -Werror to GHC during compilation.
  default: False

library
  hs-source-dirs:       src
  exposed-modules:      Data.Function.Between
  build-depends:        base > 3 && < 5

  ghc-options:          -Wall
  if impl(ghc >= 6.8)
    ghc-options:        -fwarn-tabs
  if flag(pedantic)
    ghc-options:        -Werror

source-repository head
  type:                 git
  location:             git://github.com/trskop/between.git

source-repository this
  type:                 git
  location:             git://github.com/trskop/between.git
  tag:                  v0.9.0.2