Data.ByteString.Base16.Lazy

RFC 4648-compliant Base16 (Hexadecimal) encoding for lazy ByteString values. For a complete Base16 encoding specification, please see RFC-4648 section 8.

Documentation

encode :: ByteString -> ByteString

Encode a ByteString value in base16 (i.e. hexadecimal). Encoded values will always have a length that is a multiple of 2.

Examples:

encode "foo"  == "666f6f"

decode :: ByteString -> Either String ByteString

Decode a base16-encoded ByteString value. If errors are encountered during the decoding process, then an error message and character offset will be returned in the Left clause of the coproduct.

Examples:

decode "666f6f" == Right "foo"
decode "66quux" == Left "invalid character at offset: 2"
decode "666quu" == Left "invalid character at offset: 3"

Since: 1.0.0.0

decodeLenient :: ByteString -> ByteString

Decode a Base16-encoded ByteString value leniently, using a strategy that never fails.

N.B.: this is not RFC 4648-compliant

Examples:

decodeLenient "666f6f" == "foo"
decodeLenient "66quux" == "f"
decodeLenient "666quu" == "f"
decodeLenient "666fqu" == "fo"

Since: 1.0.0.0