Moduletext-2.1.3Haskell2010

Data.Text.Internal.Encoding.Utf8

Warning: this is an internal module, and does not have a stable API or name. Functions in this module may not check or enforce preconditions expected by public modules. Use at your own risk!

Basic UTF-8 validation and character manipulation.

3 types
17 values

Packagetext-2.1.3
Exports20
LanguageHaskell2010
LicenceBSD-2-Clause
SourceUtf8.hs

valueutf8Length :: Char -> Int

valueutf8LengthByLeader :: Word8 -> Int

valueord2 :: Char -> (Word8, Word8)

valueord3 :: Char -> (Word8, Word8, Word8)

valueord4 :: Char -> (Word8, Word8, Word8, Word8)

valuechr2 :: Word8 -> Word8 -> Char

valuechr3 :: Word8 -> Word8 -> Word8 -> Char

valuechr4 :: Word8 -> Word8 -> Word8 -> Word8 -> Char

Validation

4 declarations

valuevalidate1 :: Word8 -> Bool

valuevalidate2 :: Word8 -> Word8 -> Bool

valuevalidate3 :: Word8 -> Word8 -> Word8 -> Bool

valuevalidate4 :: Word8 -> Word8 -> Word8 -> Word8 -> Bool

Naive decoding

8 declarations

newtypenewtype DecoderState

Constructors

DecoderState Word8

Instances2Eq, Show

Eq DecoderStateDefined in text-2.1.3 · Data.Text.Internal.Encoding.Utf8
Show DecoderStateDefined in text-2.1.3 · Data.Text.Internal.Encoding.Utf8

valueutf8AcceptState :: DecoderState

valueutf8RejectState :: DecoderState

valueupdateDecoderState :: Word8 -> DecoderState -> DecoderState

datadata DecoderResult

newtypenewtype CodePoint

Constructors

CodePoint Int

valueutf8DecodeStart :: Word8 -> DecoderResult

valueutf8DecodeContinue :: Word8 -> DecoderState -> CodePoint -> DecoderResult