/var/lib/ghc/package.conf.d/microlens-0.4.8.1.conf is in libghc-microlens-dev 0.4.8.1-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | name: microlens
version: 0.4.8.1
id: microlens-0.4.8.1-BVhsezHoPw9Ez18LAXVtpM
key: microlens-0.4.8.1-BVhsezHoPw9Ez18LAXVtpM
license: BSD3
maintainer: Artyom <yom@artyom.me>
homepage: http://github.com/aelve/microlens
synopsis: A tiny lens library with no dependencies. If you're writing an app, you probably want microlens-platform, not this.
description:
NOTE: If you're writing an app, you probably want <http://hackage.haskell.org/package/microlens-platform microlens-platform> – it has the most features. <http://hackage.haskell.org/package/microlens microlens> is intended more for library writers who want a tiny lens library (after all, lenses are pretty useful for everything, not just for updating records!).
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This library is an extract from <http://hackage.haskell.org/package/lens lens> (with no dependencies). It's not a toy lenses library, unsuitable for “real world”, but merely a small one. It is compatible with lens, and should have same performance. It also has better documentation.
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There's a longer readme <https://github.com/aelve/microlens#readme on Github>. It has a migration guide for lens users, a description of other packages in the family, a discussion of other lens libraries you could use instead, and so on.
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Here are some usecases for this library:
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* You want to define lenses or traversals in your own library, but don't want to depend on lens. Having lenses available often make working with a library more pleasant.
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* You just want to be able to use lenses to transform data (or even just use @over _1@ to change the first element of a tuple).
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* You are new to lenses and want a small library to play with.
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However, don't use this library if:
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* You need @Iso@s, @Prism@s, indexed traversals, or actually anything else which isn't defined here (tho some indexed functions are available elsewhere – containers and vector provide them for their types, and <http://hackage.haskell.org/package/ilist ilist> provides indexed functions for lists).
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* You want a library with a clean, understandable implementation (in which case you're looking for <http://hackage.haskell.org/package/lens-simple lens-simple>).
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As already mentioned, if you're writing an application which uses lenses more extensively, look at <http://hackage.haskell.org/package/microlens-platform microlens-platform> – it combines features of most other microlens packages (<http://hackage.haskell.org/package/microlens-mtl microlens-mtl>, <http://hackage.haskell.org/package/microlens-th microlens-th>, <http://hackage.haskell.org/package/microlens-ghc microlens-ghc>).
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If you want to export getters or folds and don't mind the <http://hackage.haskell.org/package/contravariant contravariant> dependency, please consider using <http://hackage.haskell.org/package/microlens-contra microlens-contra>.
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If you haven't ever used lenses before, read <http://hackage.haskell.org/package/lens-tutorial/docs/Control-Lens-Tutorial.html this tutorial>. (It's for lens, but it applies to microlens just as well.)
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Note that microlens has no dependencies starting from GHC 7.10 (base-4.8). Prior to that, it depends on transformers-0.2 or above.
category: Data, Lenses
author: Edward Kmett, Artyom
exposed: True
exposed-modules:
Lens.Micro Lens.Micro.Extras Lens.Micro.Internal Lens.Micro.Type
abi: 76d4f9759cca94d64de0ec5d7ad24053
trusted: False
import-dirs: /usr/lib/haskell-packages/ghc/lib/x86_64-linux-ghc-8.0.2/microlens-0.4.8.1-BVhsezHoPw9Ez18LAXVtpM
library-dirs: /usr/lib/haskell-packages/ghc/lib/x86_64-linux-ghc-8.0.2/microlens-0.4.8.1-BVhsezHoPw9Ez18LAXVtpM
dynamic-library-dirs: /usr/lib/haskell-packages/ghc/lib/x86_64-linux-ghc-8.0.2
data-dir: /usr/share/microlens
hs-libraries: HSmicrolens-0.4.8.1-BVhsezHoPw9Ez18LAXVtpM
depends:
base-4.9.1.0
haddock-interfaces: /usr/lib/ghc-doc/haddock/microlens-0.4.8.1/microlens.haddock
haddock-html: /usr/share/doc/libghc-microlens-doc/html/
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