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README
string-fromto
A collection of predictably-named functions (e.g. byteStringToString) that convert between the common string types, as well as to and from Base16, Base32, and Base64.
Usage
import Data.String.FromTo -- or imported as part of your Prelude
str :: String
str = "Hi, I'm a string"
text :: Text
text = stringToText str
encoded :: ByteString
encoded = textToBase64ByteString text
decoded :: Either String Text
decoded = base64ByteStringToText encoded
Documentation
License
[BSD3](LICENSE)
Motivation
Have you ever found yourself frustrated that you're spending 15-30% of your
time in Haskell converting between string types, remembering which module has
the toStrict function, importing Data.Text.Encoding and
Data.Text.Lazy.Encoding qualified, spending time thinking about how to do
Base64 encoding, etc.? Or tried to use one of the (excellent) typeclass-based
string conversion libraries, only to find yourself adding awkward type
signatures to avoid type-inferencing ambiguities?
This library exports a collection of functions that follow a simple pattern:
stringTypeAToStringTypeB :: a -> b
For example:
stringToByteString :: String -> ByteString
stringToLazyByteString :: String -> Lazy.ByteString
base64ByteStringToText :: ByteString -> Either String Text
This way, if you import this module unqualified, or as part of your Prelude, all you have to think about is which type you want to convert into which other type.
(Note that not every possible permutation has a function, just each one we've ever needed. If you need one that's not included, please submit a pull request to add it.)
*Note that all licence references and agreements mentioned in the string-fromto README section above
are relevant to that project's source code only.