[](https://hackage.haskell.org/package/data-diverse-lens)
[](http://travis-ci.org/louispan/data-diverse-lens)
Provides "Iso"s & 'Len's for "Data.Diverse.Many" and 'Prism's for "Data.Diverse.Which".
Refer to [ManySpec.hs](https://github.com/louispan/data-diverse-lens/blob/master/test/Data/Diverse/Lens/ManySpec.hs) and [WhichSpec.hs](https://github.com/louispan/data-diverse/blob/master/test/Data/Diverse/Lens/WhichSpec.hs) for example usages.
# Changelog
* 4.2.0.0
- Replaced `also` and `alternatively` with `chooseWith`
* 4.1.0.0
- Removed generic-lens dependency - didn't really use it.
* 4.0.0.0
- Renamed `itemXXX` to `pieceXXX`, `Itemized` to `Pieced`, `itemizedXXX` to `piecedXXX`.
* 3.1.1.0
- `itemTag` only requires `Has` and likewise `facetTag` only requires `AsFacet`.
* 3.1.0.0
- Replaced `HasItem` with `Data.Has`.
* 3.0.0.2
- Fixed haddock.
* 3.0.0.1
- Fixed GHC 8.2.2 "Type indexes must match class instance head" compile error.
* 3.0.0.0
- Renamed `SelectWith` to `MakeFrom`, split `ChooseBtween` to `ChooseBoth` and `ChooseFrom`.
- Removed hard to remember operators ``>&&>` `*&&*` `+||+` `>||>`
- Removed `faceted'`
- Added `instance AsFacet Void (Which '[])` and `instance AsFacet (Which '[]) Void`
- Polymorphic `HasItemX` now only requires two to three type args.
* 2.1.0.0
- Removed profunctor variable `w` from the constraint synonyms for `Projected`/`Injected`.
* 2.0.0.1
- Forgot to expose constraint synonyms for `Projected`/`Injected`.
* 2.0.0.0
- Breaking change: Removed `HasProject` and `AsInject` typeclasses and changed them back to functions.
- Added `MatchingFacet` typeclasses for polymorphic `matching` of prisms.
- Added constraint synonyms for `Project`/`Inject`/`Projected`/`Injected`.
* 1.0.0.1
- Fixed missing exports of the new lens classes.
* 1.0.0.0
- Removed overlapping instances of `Data.Generics` lens
- Using typeclass instead of plain functions so that lens can be used for other data types
- Added default implementations for some of these typeclasses using Data.Generic typeclasses.
- Breaking change: the xxx' version of functions are now consistently the simpler or non-polymorphic version - This is more consistent with 'Control.Lens' as well.
- This means the following are swapped:
- `item`, `item'`
- `itemL`, `itemL'`
- `itemTag`, `itemTag'`
- `itemN`, `itemN'`
- `project`, `project'`
- `projectL`, `projectL'`
- `projectN`, `projectN'`
* 0.5.2.0
- Added `itemTag` and `facetTag` that also tag/untags the field.
- Added overlapping instances of `Data.Generics` lens
* 0.5.1.0
- Added `faceted`, `injected`, `itemized`, `projected`, which is analogous to `Profunctor` `Choice` and `Strong` but using `Which` and `Many`
- Added `+||+` (analogous to `+++` and `|||`), `>||>`; and `*&&*` (analogous to `***` and `&&&`), and `>&&>`.
* 0.5.0.0
- min bounds: data-diverse >=1.2.1
- Rerranged type variable for xxxL and xxxN functions so that the
@x@ inferrred from label @l@ or index @n@ is after @proxy@.
- This affects `item[L|N]`, `item[L|N]'`, `replace[L|N]'`, `facet[L|N]`
- Same change was made in data-diverse-1.2.0.0
* 0.4.0.1
- included data-diverse 1.0 in the upper bounds
* 0.4.0.0
- Changed type variable ordering of `itemL` and `itemL`, so it's consistently `x`, `y`, then `xs`
* 0.3.0.0
- Changed type variable ordering of `facetL` and `facetN`, so it's consistently `x` then `xs`
* pre 0.3.0.0
- Initial version.