License	BSD-style
Maintainer	Vincent Hanquez <vincent@snarc.org>
Stability	experimental
Portability	unix
Safe Haskell	None
Language	Haskell98

Data.Git.Delta

Description

Synopsis

data Delta = Delta !Word64 !Word64 ![DeltaCmd]
data DeltaCmd
- = DeltaCopy !ByteString
- | DeltaSrc !Word64 !Word64
deltaParse :: Parser Delta
deltaRead :: [ByteString] -> Maybe Delta
deltaApply :: ByteString -> Delta -> ByteString

Documentation

data Delta Source #

a delta is a source size, a destination size and a list of delta cmd

Constructors

Delta !Word64 !Word64 ![DeltaCmd]

Instances

Eq Delta Source #
Instance details Defined in Data.Git.Delta Methods (==) :: Delta -> Delta -> Bool # (/=) :: Delta -> Delta -> Bool #
Show Delta Source #
Instance details Defined in Data.Git.Delta Methods showsPrec :: Int -> Delta -> ShowS # show :: Delta -> String # showList :: [Delta] -> ShowS #

data DeltaCmd Source #

possible commands in a delta

Constructors

DeltaCopy !ByteString
DeltaSrc !Word64 !Word64

Instances

Eq DeltaCmd Source #
Instance details Defined in Data.Git.Delta Methods (==) :: DeltaCmd -> DeltaCmd -> Bool # (/=) :: DeltaCmd -> DeltaCmd -> Bool #
Show DeltaCmd Source #
Instance details Defined in Data.Git.Delta Methods showsPrec :: Int -> DeltaCmd -> ShowS # show :: DeltaCmd -> String # showList :: [DeltaCmd] -> ShowS #

deltaParse :: Parser Delta Source #

parse a delta. format is 2 variable sizes, followed by delta cmds. for each cmd: * if first byte MSB is set, we copy from source. * otherwise, we copy from delta. * extensions are not handled.

deltaRead :: [ByteString] -> Maybe Delta Source #

read one delta from a lazy bytestring.

deltaApply :: ByteString -> Delta -> ByteString Source #

apply a delta on a lazy bytestring, returning a new bytestring.