Data.ByteString

About

Data.ByteString provides packed strings (byte arrays held by a ForeignPtr), along with a list interface to these strings. It lets you do extremely fast IO in Haskell; in some cases, even faster than typical C implementations, and much faster than [Char]. It uses a flexible "foreign pointer" representation, allowing the transparent use of Haskell or C code to manipulate the strings.

Data.ByteString is written in Haskell98, the foreign function interface and cpp. It has been tested successfully with GHC 6.4 to GHC 6.8.2 and and Hugs 2005-2006.

News

• 2008-04 bytestring 0.9.1.0 is released.

• 2008-01 bytestring 0.9.0.4 is released. It features support for bytestring literals using GHC's new -XOverloadedStrings support.

• 2007-12 bytestring 0.9.0.2 is released. It features performance improvements, and portability fixes.

• 2007-04 A new paper, Stream Fusion: From Lists to Streams to Nothing at All, is now available, describing stream fusion in detail. It will appear at ICFP 2007.
• 2007-03 Data.ByteString is now supported by nhc98 1.19 (darcs version) compiler!
• 2007-01 The Binary serialisation team has implemented a new high performance binary library for Haskell, based on lazy ByteStrings, providing

     encode :: Binary a => a -> ByteString
     decode :: Binary a => ByteString -> a

  This allows pure serialisation direct into memory, to handles or over the network, of Haskell values. The code is available via darcs:
  • darcs get http://darcs.haskell.org/binary 

• 2007-01 The paper, Rewriting Haskell Strings, was awarded "Most Practical Paper" at the Practical Aspects of Declarative Languages conference at Nice, France.

• 2006-09 Duncan Coutts has written zlib/bzlib bindings for ByteStrings, providing an elegant interface:

     compress, decompress :: ByteString -> ByteString 

  This makes it easy to use compression/decompression on memory or with disk or network IO. The code is available via darcs:
  • darcs get http://haskell.org/~duncan/zlib  (docs)
  • darcs get http://haskell.org/~duncan/bzlib (docs)

• 2006-09 A paper, Rewriting Haskell Strings, has been submitted to PADL, describing the fusion system used in Data.ByteString.

• 2006-08 Data.ByteString version 0.7 is now available. This provides the new lazy bytestring type, as well as the new array fusion system.

• 2006-06 Google has awarded a Summer of Code scholarship to Spencer Janssen, to add a unicode layer to Data.ByteString.
• 2006-05 Data.ByteString is part of the latest stable release of Hugs.

• 2006-04 Data.ByteString will be part of the GHC base libraries in the GHC 6.6 release.

Documentation

• API documentation
• Paper: Rewriting Haskell Strings
• Paper: Stream Fusion
• Lecture slides from PADL talk
• Lecture slides from an introduction to Data.ByteString talk
• A mini-tutorial on writing fast Haskell code with Data.ByteString
• Stream fusion for lists

Get bytestring

• bytestring 0.9.1.0
• bytestring 0.9.0.4
• bytestring 0.9.0.3
• bytestring 0.9.0.2
• bytestring 0.9.0.1
• bytestring 0.9
• FPS 0.7
• FPS 0.6
• FPS 0.5
• FPS 0.4
• FPS 0.3
• FPS 0.2
• FPS 0.1

Source

• darcs get --partial http://darcs.haskell.org/bytestring
• Read the source code

Project Activity