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Showing content from http://hackage.haskell.org/packages/archive/base/4.6.0.0/doc/html/GHC-IO-Encoding-Failure.html below:

GHC.IO.Encoding.Failure

data CodingFailureMode Source

The CodingFailureMode is used to construct TextEncodings, and specifies how they handle illegal sequences.

Constructors

Throw an error when an illegal sequence is encountered

Attempt to ignore and recover if an illegal sequence is encountered

Replace with the closest visual match upon an illegal sequence

Use the private-use escape mechanism to attempt to allow illegal sequences to be roundtripped.

Instances

codingFailureModeSuffix :: CodingFailureMode -> StringSource

isSurrogate :: Char -> BoolSource

Some characters are actually surrogate codepoints defined for use in UTF-16. We need to signal an invalid character if we detect them when encoding a sequence of Chars into Word8s because they won't give valid Unicode.

We may also need to signal an invalid character if we detect them when encoding a sequence of Chars into Word8s because the RoundtripFailure mode creates these to round-trip bytes through our internal UTF-16 encoding.

recoverDecode :: CodingFailureMode -> Buffer Word8 -> Buffer Char -> IO (Buffer Word8, Buffer Char)Source

recoverEncode :: CodingFailureMode -> Buffer Char -> Buffer Word8 -> IO (Buffer Char, Buffer Word8)Source

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