Portability | non-portable |
---|---|
Stability | experimental |
Maintainer | Edward Kmett <ekmett@gmail.com> |
Safe Haskell | None |
- class IsByteString t where
- packedBytes :: Iso' [Word8] t
- packedChars :: Iso' String t
- bytes :: IndexedTraversal' Int t Word8
- chars :: IndexedTraversal' Int t Char
Documentation
class IsByteString t whereSource
Traversals for ByteStrings.
packedBytes :: Iso' [Word8] tSource
pack
(or unpack
) a list of bytes into a strict or lazy ByteString
.
pack
x = x^.
packedBytes
unpack
x = x^.
from
packedBytes
packedChars :: Iso' String tSource
pack
(or unpack
) a list of characters into a strict or lazy ByteString
.
When writing back to the ByteString
it is assumed that every Char
lies between '\x00' and '\xff'.
pack
x = x^.
packedChars
unpack
x = x^.
from
packedChars
bytes :: IndexedTraversal' Int t Word8Source
Traverse each Word8
in a strict or lazy ByteString
bytes
=from
packedBytes
.
itraversed
anyOf
bytes
(==
0x80) ::ByteString
->Bool
chars :: IndexedTraversal' Int t CharSource
Traverse the individual bytes in a strict or lazy ByteString
as characters.
When writing back to the ByteString
it is assumed that every Char
lies between '\x00' and '\xff'.
chars
=from
packedChars
.
traverse
anyOf
chars
(==
'c') ::ByteString
->Bool