Data.String.FromTo

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 module exports a collection of functions that follow a simple pattern:

stringTypeAToStringTypeB :: a -> b

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.

For convenience, this module also exposes conversions between Base16, Base32, and Base64-encoded strings.

Note:

• 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.
• When converting a Text to and from ByteString, UTF-8 is used.

ByteString to...

base16ByteStringToByteString :: ByteString -> Either String ByteString

base32ByteStringToByteString :: ByteString -> Either String ByteString

base64ByteStringToByteString :: ByteString -> Either String ByteString

base64UrlByteStringToByteString :: ByteString -> Either String ByteString

base64ByteStringToText :: ByteString -> Either String Text

byteStringToBase16ByteString :: ByteString -> ByteString

byteStringToBase32ByteString :: ByteString -> ByteString

byteStringToBase64ByteString :: ByteString -> ByteString

byteStringToBase64UrlByteString :: ByteString -> ByteString

byteStringToBase32Text :: ByteString -> Text

byteStringToBase64Text :: ByteString -> Text

byteStringToLazyByteString :: ByteString -> ByteString

byteStringToString :: ByteString -> String

byteStringToText :: ByteString -> Text

lazyByteStringToByteString :: ByteString -> ByteString

lazyByteStringToString :: ByteString -> String

lazyByteStringToText :: ByteString -> Text

Text to...

base16TextToByteString :: Text -> Either String ByteString

base32TextToByteString :: Text -> Either String ByteString

base64TextToByteString :: Text -> Either String ByteString

lazyTextToString :: Text -> String

lazyTextToText :: Text -> Text

textToBase16ByteString :: Text -> ByteString

textToBase16String :: Text -> String

textToBase16Text :: Text -> Text

textToBase32ByteString :: Text -> ByteString

textToBase32String :: Text -> String

textToBase32Text :: Text -> Text

textToBase64ByteString :: Text -> ByteString

textToBase64String :: Text -> String

textToBase64Text :: Text -> Text

textToByteString :: Text -> ByteString

textToLazyByteString :: Text -> ByteString

textToLazyText :: Text -> Text

textToString :: Text -> String

String to...

stringToByteString :: String -> ByteString

stringToLazyByteString :: String -> ByteString

stringToLazyText :: String -> Text

stringToText :: String -> Text