io-streams (hackage): Overview  The io-streams library contains simple and easy-to-use primitives for I/O using streams. Most users will want to import the top-level convenience module System.IO.Streams, which re-exports most of the library:  For first-time users, io-streams comes with an included tutorial, which can be found in the System.IO.Streams.Tutorial module.  Features  The io-streams user API has two basic types: InputStream a and OutputStream a, and three fundamental I/O primitives:  Streams can be transformed by composition and hooked together with provided combinators:  Stream composition leaves the original stream accessible:  Simple types and operations in the IO monad mean straightforward and simple exception handling and resource cleanup using Haskell standard library facilities like Control.Exception.bracket.  io-streams comes with:  functions to use files, handles, concurrent channels, sockets, lists, vectors, and more as streams.  a variety of combinators for wrapping and transforming streams, including compression and decompression using zlib, controlling precisely how many bytes are read from or written to a stream, buffering output using bytestring builders, folds, maps, filters, zips, etc.  support for parsing from streams using attoparsec.  support for spawning processes and communicating with them using streams.
Keywords: bsd3|data|io-streams|library|network