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.