machines-io (empty) → 0.0.0.1
raw patch · 4 files changed
+267/−0 lines, 4 filesdep +basedep +chunked-datadep +machinessetup-changed
Dependencies added: base, chunked-data, machines, transformers
Files
- LICENSE +202/−0
- Setup.hs +2/−0
- machines-io.cabal +23/−0
- src/System/IO/Machine.hs +40/−0
+ LICENSE view
@@ -0,0 +1,202 @@++ Apache License+ Version 2.0, January 2004+ http://www.apache.org/licenses/++ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION++ 1. Definitions.++ "License" shall mean the terms and conditions for use, reproduction,+ and distribution as defined by Sections 1 through 9 of this document.++ "Licensor" shall mean the copyright owner or entity authorized by+ the copyright owner that is granting the License.++ "Legal Entity" shall mean the union of the acting entity and all+ other entities that control, are controlled by, or are under common+ control with that entity. 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We also recommend that a+ file or class name and description of purpose be included on the+ same "printed page" as the copyright notice for easier+ identification within third-party archives.++ Copyright 1985 Alois Cochard++ Licensed under the Apache License, Version 2.0 (the "License");+ you may not use this file except in compliance with the License.+ You may obtain a copy of the License at++ http://www.apache.org/licenses/LICENSE-2.0++ Unless required by applicable law or agreed to in writing, software+ distributed under the License is distributed on an "AS IS" BASIS,+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.+ See the License for the specific language governing permissions and+ limitations under the License.
+ Setup.hs view
@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain
+ machines-io.cabal view
@@ -0,0 +1,23 @@+name: machines-io+version: 0.0.0.1+synopsis: IO utilities for the machines library+homepage: http://github.com/aloiscochard/machines-io+license: Apache-2.0+license-file: LICENSE+author: Alois Cochard+maintainer: alois.cochard@gmail.com+category: System+build-type: Simple+cabal-version: >=1.10++library+ default-language: Haskell2010+ hs-source-dirs: src+ ghc-options: -fwarn-incomplete-patterns+ exposed-modules: + System.IO.Machine+ build-depends: + base >=4.7 && <4.8+ , chunked-data+ , machines+ , transformers
+ src/System/IO/Machine.hs view
@@ -0,0 +1,40 @@+{-# LANGUAGE DoAndIfThenElse #-}+{-# LANGUAGE Rank2Types #-}+{-# LANGUAGE KindSignatures #-}+module System.IO.Machine where++import Control.Monad (when)+import Control.Monad.IO.Class (MonadIO, liftIO)+import Data.IOData (IOData, hGetLine, hPutStrLn)+import Data.Machine+import System.IO (Handle, IOMode(ReadMode), hClose, hIsEOF, openBinaryFile)++data IODataMode a = IODataMode (Handle -> IO a) (Handle -> a -> IO ())++type IOSink k = forall a. ProcessT IO k a+type IOSource a = forall k. MachineT IO k a++byLine :: IOData a => IODataMode a+byLine = IODataMode hGetLine hPutStrLn++sourceIO :: MonadIO m => m r -> (r -> m Bool) -> (r -> m a) -> forall k. MachineT m k a+sourceIO acquire release read = MachineT $ do+ r <- acquire+ released <- release r+ if released then+ return Stop+ else do+ x <- read r+ return . Yield x $ sourceIO acquire release read++sourceHandle :: IODataMode a -> Handle -> IOSource a+sourceHandle (IODataMode r _) = sourceHandleWith r++sinkHandle :: IOData a => IODataMode a -> Handle -> IOSink a+sinkHandle (IODataMode _ w) h = repeatedly $ await >>= \x -> liftIO $ w h x++sourceHandleWith :: (Handle -> IO a) -> Handle -> IOSource a+sourceHandleWith f h = sourceIO (return h) hIsEOF f++sinkHandleWith :: IOData a => (Handle -> a -> IO ()) -> Handle -> IOSink a+sinkHandleWith f h = repeatedly $ await >>= \x -> liftIO $ f h x