base16-lens
Optics for the Base16 library
https://github.com/emilypi/base16-lens
| Version on this page: | 0.1.2.0 |
| LTS Haskell 19.33: | 0.1.3.2 |
| Stackage Nightly 2022-03-17: | 0.1.3.2 |
| Latest on Hackage: | 0.1.3.2 |
Maintained by [email protected]
This version can be pinned in stack with:
base16-lens-0.1.2.0@sha256:fe8452a72bdc13590663b91d29d4b9d0c9ed4eb4212a7617a8663319f17d1719,1628Module documentation for 0.1.2.0
- Data
- Data.ByteString
- Data.ByteString.Base16
- Data.ByteString.Lazy
- Data.ByteString.Lazy.Base16
- Data.Text
- Data.Text.Encoding
- Data.Text.Encoding.Base16
- Data.Text.Lazy
- Data.Text.Lazy.Encoding
- Data.Text.Lazy.Encoding.Base16
- Data.Text.Lazy.Encoding
- Data.Text.Encoding
- Data.ByteString
Depends on 5 packages(full list with versions):
Base16-lens
This package provides optics and convenient pattern synonyms for the base16 library.
Patterns
The pattern synonyms provided in this library are:
pattern Hex :: ByteString -> ByteString
pattern Base16 :: ByteString -> ByteString
pattern Base16Lenient :: ByteString -> ByteString
-- and
pattern Hex :: Text -> Text
pattern Base16 :: Text -> Text
pattern Base16Lenient :: Text -> Text
These provide a convenient high level interface for passing Base16 encoded values.
Optics
Prisms for encoding and decoding Text and ByteString values are given as part of the library:
_Hex :: Prism' ByteString ByteString
_Base16 :: Prism' ByteString ByteString
_Base16Lenient :: Iso' ByteString ByteString
-- and
_Hex:: Prism' Text Text
_Base16 :: Prism' Text Text
_Base16Lenient :: Iso' Text Text
If a particular structure has a Lens into some Text or ByteString value they might want to encode (or decode), then composing such a Lens with these Prisms yields an affine Traversal, resulting in a structure which has the focus of its Lens encoded as or decoded from Base16.