#!/bin/sh
export PATH='/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl'
echo 'name: lens
version: 4.15.1
id: lens-4.15.1-DZbFGf4RlcKEQE2VkLJobh
key: lens-4.15.1-DZbFGf4RlcKEQE2VkLJobh
license: BSD3
copyright: Copyright (C) 2012-2016 Edward A. Kmett
maintainer: Edward A. Kmett <ekmett@gmail.com>
stability: provisional
homepage: http://github.com/ekmett/lens/
synopsis: Lenses, Folds and Traversals
description:
    This package comes \"Batteries Included\" with many useful lenses for the types
    commonly used from the Haskell Platform, and with tools for automatically
    generating lenses and isomorphisms for user-supplied data types.
    .
    The combinators in @Control.Lens@ provide a highly generic toolbox for composing
    families of getters, folds, isomorphisms, traversals, setters and lenses and their
    indexed variants.
    .
    An overview, with a large number of examples can be found in the <https://github.com/ekmett/lens#lens-lenses-folds-and-traversals README>.
    .
    An introductory video on the style of code used in this library by Simon Peyton Jones is available from <http://skillsmatter.com/podcast/scala/lenses-compositional-data-access-and-manipulation Skills Matter>.
    .
    A video on how to use lenses and how they are constructed is available on <http://youtu.be/cefnmjtAolY?hd=1 youtube>.
    .
    Slides for that second talk can be obtained from <http://comonad.com/haskell/Lenses-Folds-and-Traversals-NYC.pdf comonad.com>.
    .
    More information on the care and feeding of lenses, including a brief tutorial and motivation
    for their types can be found on the <https://github.com/ekmett/lens/wiki lens wiki>.
    .
    A small game of @pong@ and other more complex examples that manage their state using lenses can be found in the <https://github.com/ekmett/lens/blob/master/examples/ example folder>.
    .
    /Lenses, Folds and Traversals/
    .
    With some signatures simplified, the core of the hierarchy of lens-like constructions looks like:
    .
    .
    <<http://i.imgur.com/ALlbPRa.png>>
    .
    <Hierarchy.png (Local Copy)>
    .
    You can compose any two elements of the hierarchy above using @(.)@ from the @Prelude@, and you can
    use any element of the hierarchy as any type it linked to above it.
    .
    The result is their lowest upper bound in the hierarchy (or an error if that bound doesn'\''t exist).
    .
    For instance:
    .
    * You can use any '\''Traversal'\'' as a '\''Fold'\'' or as a '\''Setter'\''.
    .
    * The composition of a '\''Traversal'\'' and a '\''Getter'\'' yields a '\''Fold'\''.
    .
    /Minimizing Dependencies/
    .
    If you want to provide lenses and traversals for your own types in your own libraries, then you
    can do so without incurring a dependency on this (or any other) lens package at all.
    .
    /e.g./ for a data type:
    .
    > data Foo a = Foo Int Int a
    .
    You can define lenses such as
    .
    > -- bar :: Lens'\'' (Foo a) Int
    > bar :: Functor f => (Int -> f Int) -> Foo a -> f (Foo a)
    > bar f (Foo a b c) = fmap (\a'\'' -> Foo a'\'' b c) (f a)
    .
    > -- quux :: Lens (Foo a) (Foo b) a b
    > quux :: Functor f => (a -> f b) -> Foo a -> f (Foo b)
    > quux f (Foo a b c) = fmap (Foo a b) (f c)
    .
    without the need to use any type that isn'\''t already defined in the @Prelude@.
    .
    And you can define a traversal of multiple fields with '\''Control.Applicative.Applicative'\'':
    .
    > -- traverseBarAndBaz :: Traversal'\'' (Foo a) Int
    > traverseBarAndBaz :: Applicative f => (Int -> f Int) -> Foo a -> f (Foo a)
    > traverseBarAndBaz f (Foo a b c) = Foo <$> f a <*> f b <*> pure c
    .
    What is provided in this library is a number of stock lenses and traversals for
    common haskell types, a wide array of combinators for working them, and more
    exotic functionality, (/e.g./ getters, setters, indexed folds, isomorphisms).
category: Data, Lenses, Generics
author: Edward A. Kmett
exposed: True
exposed-modules:
    Control.Exception.Lens Control.Lens Control.Lens.At
    Control.Lens.Combinators Control.Lens.Cons Control.Lens.Each
    Control.Lens.Empty Control.Lens.Equality Control.Lens.Extras
    Control.Lens.Fold Control.Lens.Getter Control.Lens.Indexed
    Control.Lens.Internal Control.Lens.Internal.Bazaar
    Control.Lens.Internal.ByteString Control.Lens.Internal.Coerce
    Control.Lens.Internal.Context Control.Lens.Internal.Deque
    Control.Lens.Internal.Exception Control.Lens.Internal.FieldTH
    Control.Lens.Internal.PrismTH Control.Lens.Internal.Fold
    Control.Lens.Internal.Getter Control.Lens.Internal.Indexed
    Control.Lens.Internal.Instances Control.Lens.Internal.Iso
    Control.Lens.Internal.Level Control.Lens.Internal.List
    Control.Lens.Internal.Magma Control.Lens.Internal.Prism
    Control.Lens.Internal.Review Control.Lens.Internal.Setter
    Control.Lens.Internal.TH Control.Lens.Internal.Zoom
    Control.Lens.Iso Control.Lens.Lens Control.Lens.Level
    Control.Lens.Operators Control.Lens.Plated Control.Lens.Prism
    Control.Lens.Reified Control.Lens.Review Control.Lens.Setter
    Control.Lens.TH Control.Lens.Traversal Control.Lens.Tuple
    Control.Lens.Type Control.Lens.Wrapped Control.Lens.Zoom
    Control.Monad.Error.Lens Control.Parallel.Strategies.Lens
    Control.Seq.Lens Data.Array.Lens Data.Bits.Lens
    Data.ByteString.Lens Data.ByteString.Strict.Lens
    Data.ByteString.Lazy.Lens Data.Complex.Lens Data.Data.Lens
    Data.Dynamic.Lens Data.HashSet.Lens Data.IntSet.Lens Data.List.Lens
    Data.Map.Lens Data.Sequence.Lens Data.Set.Lens Data.Text.Lens
    Data.Text.Strict.Lens Data.Text.Lazy.Lens Data.Tree.Lens
    Data.Typeable.Lens Data.Vector.Lens Data.Vector.Generic.Lens
    GHC.Generics.Lens System.Exit.Lens System.FilePath.Lens
    System.IO.Error.Lens Language.Haskell.TH.Lens Numeric.Lens
hidden-modules: Paths_lens
abi: 4a8861cbe4829de48bfe50b8363ca22b
trusted: False
import-dirs: /usr/lib/ghc-8.0.1/site-local/lens-4.15.1
library-dirs: /usr/lib/ghc-8.0.1/site-local/lens-4.15.1
data-dir: /usr/share/i386-linux-ghc-8.0.1/lens-4.15.1
hs-libraries: HSlens-4.15.1-DZbFGf4RlcKEQE2VkLJobh
depends:
    array-0.5.1.1 base-4.9.0.0
    base-orphans-0.5.4-5IQvrjd7gNP548VkOOyIq6
    bifunctors-5.4.1-EBkHk3WI7L87dRJGvKP176 bytestring-0.10.8.1
    comonad-5-1roHbXsedY6KUNYFgPJLp6 containers-0.5.7.1
    contravariant-1.4-89BvpwBnlCJ6iFzBGVF7XO
    distributive-0.5.0.2-2AokE99FpE59iSGkvIRYC4
    exceptions-0.8.3-5cAKIsqc1DD7jaNW3zLxAN filepath-1.4.1.0
    free-4.12.4-LcxMyZIxIoo6h2gqXah9QK ghc-prim-0.5.0.0
    hashable-1.2.4.0-GnltDttmBjG9qGzcjuPOH4
    kan-extensions-5.0.1-JxnJF79ehCQ1iWfDSDGjll
    mtl-2.2.1-6qsR1PHUy5lL47Hpoa4jCM
    parallel-3.2.1.0-6VcN0yUHtcs831TgbJiSSi
    profunctors-5.2-CUL7kUu4nBbDVNmgOaH64k
    reflection-2.1.2-Lwt0A3NRHka1hAeW9AOpLq
    semigroupoids-5.1-5WI5yrkqR6b5vppUpisNlN
    semigroups-0.18.2-2lmUSJvrDkM6JBURGRclWz
    tagged-0.8.5-I7Gu0uzBLkQJCVUvdvwKKq template-haskell-2.11.0.0
    text-1.2.2.1-FgcR4Xf0VlEHD9HLxzq9WJ transformers-0.5.2.0
    transformers-compat-0.5.1.4-81lZyuOJOvsD0zyCv2TKld
    unordered-containers-0.2.7.1-6Q3w38ZivLTB9nLFgf8RUI
    vector-0.11.0.0-BEDZb5o2QOhGbIm6ky7rl6
    void-0.7.1-BXitqvas4xpGkaFQbixoM1
haddock-interfaces: /usr/share/doc/haskell-lens/html/lens.haddock
haddock-html: /usr/share/doc/haskell-lens/html
' | '/usr/bin/ghc-pkg' 'update' '--force' '-' '--global' '--no-user-package-db' "$@"
