/var/lib/ghc/package.conf.d/io-streams-1.4.1.0.conf is in libghc-io-streams-dev 1.4.1.0-1build1.
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version: 1.4.1.0
id: io-streams-1.4.1.0-DNc9FSoilreGLeMgUM1rvR
key: io-streams-1.4.1.0-DNc9FSoilreGLeMgUM1rvR
license: BSD3
maintainer: Gregory Collins <greg@gregorycollins.net>
synopsis: Simple, composable, and easy-to-use stream I/O
description:
/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:
.
@
import System.IO.Streams (InputStream, OutputStream)
import qualified System.IO.Streams as Streams
@
.
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:
.
@
\-\- read an item from an input stream
Streams.read :: InputStream a -> IO (Maybe a)
.
\-\- push an item back to an input stream
Streams.unRead :: a -> InputStream a -> IO ()
.
\-\- write to an output stream
Streams.write :: Maybe a -> OutputStream a -> IO ()
@
.
Streams can be transformed by composition and hooked together with provided combinators:
.
@
ghci> Streams.fromList [1,2,3::Int] >>= Streams.map (*10) >>= Streams.toList
[10,20,30]
@
.
Stream composition leaves the original stream accessible:
.
@
ghci> input \<- Streams.fromByteString \"long string\"
ghci> wrapped \<- Streams.takeBytes 4 input
ghci> Streams.read wrapped
Just \"long\"
ghci> Streams.read wrapped
Nothing
ghci> Streams.read input
Just \" string\"
@
.
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.
category: Data, Network, IO-Streams
exposed: True
exposed-modules:
System.IO.Streams System.IO.Streams.Attoparsec
System.IO.Streams.Attoparsec.ByteString
System.IO.Streams.Attoparsec.Text System.IO.Streams.Builder
System.IO.Streams.ByteString System.IO.Streams.Combinators
System.IO.Streams.Concurrent System.IO.Streams.Core
System.IO.Streams.Debug System.IO.Streams.Handle
System.IO.Streams.File System.IO.Streams.List
System.IO.Streams.Network System.IO.Streams.Process
System.IO.Streams.Text System.IO.Streams.Vector
System.IO.Streams.Zlib System.IO.Streams.Internal
System.IO.Streams.Tutorial
hidden-modules: System.IO.Streams.Internal.Attoparsec
System.IO.Streams.Internal.Network
System.IO.Streams.Internal.Search
abi: 9178c3c006f89fffd67f5833e84d531a
trusted: False
import-dirs: /usr/lib/haskell-packages/ghc/lib/x86_64-linux-ghc-8.0.2/io-streams-1.4.1.0-DNc9FSoilreGLeMgUM1rvR
library-dirs: /usr/lib/haskell-packages/ghc/lib/x86_64-linux-ghc-8.0.2/io-streams-1.4.1.0-DNc9FSoilreGLeMgUM1rvR
dynamic-library-dirs: /usr/lib/haskell-packages/ghc/lib/x86_64-linux-ghc-8.0.2
data-dir: /usr/share/io-streams
hs-libraries: HSio-streams-1.4.1.0-DNc9FSoilreGLeMgUM1rvR
depends:
attoparsec-0.13.1.0-3ql4hcH9pGfBAlE21oqFTQ base-4.9.1.0
bytestring-0.10.8.1 network-2.6.3.2-IsLM4TXcLoRI0fmmBYVyQz
primitive-0.6.2.0-4578caNkWQ54Gt1mxLF2Yh process-1.4.3.0
text-1.2.2.2-9UQZjEJZQFSGMffj1Z5g00 time-1.6.0.1
transformers-0.5.2.0 vector-0.12.0.1-692PQMDMB6pIQ1uGwefDcQ
zlib-bindings-0.1.1.5-4AFfs0NmxaYKZpHnixldSp
haddock-interfaces: /usr/lib/ghc-doc/haddock/io-streams-1.4.1.0/io-streams.haddock
haddock-html: /usr/share/doc/libghc-io-streams-doc/html/
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