machines-zlib (empty) → 0.1.0

raw patch · 4 files changed

+82/−0 lines, 4 filesdep +basedep +basic-preludedep +machinessetup-changed

Dependencies added: base, basic-prelude, machines, streaming-commons

Files

• LICENSE +30/−0
• Setup.hs +2/−0
• machines-zlib.cabal +23/−0
• src/Data/Machine/Zlib.hs +27/−0

@@ -0,0 +1,30 @@+Copyright (c) 2015, LShift++All rights reserved.++Redistribution and use in source and binary forms, with or without+modification, are permitted provided that the following conditions are met:++    * Redistributions of source code must retain the above copyright+      notice, this list of conditions and the following disclaimer.++    * Redistributions in binary form must reproduce the above+      copyright notice, this list of conditions and the following+      disclaimer in the documentation and/or other materials provided+      with the distribution.++    * Neither the name of LShift nor the names of other+      contributors may be used to endorse or promote products derived+      from this software without specific prior written permission.++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain

@@ -0,0 +1,23 @@+name:                machines-zlib+version:             0.1.0+synopsis:            Decompression support for machines+-- description:         +homepage:            https://github.com/lshift/machines-zlib+license:             BSD3+license-file:        LICENSE+author:              Robin Green+-- maintainer:          robin@lshift.net+copyright:           (c) 2015 LShift+category:            Machines, Compression+build-type:          Simple+cabal-version:       >=1.10++library+  exposed-modules:     Data.Machine.Zlib+  -- other-modules:       +  build-depends:       base ==4.7.*,+                       basic-prelude >=0.3 && <0.4,+                       machines >=0.4.1 && <0.5,+                       streaming-commons >=0.1 && <0.2+  default-language:    Haskell2010+  hs-source-dirs:      src

@@ -0,0 +1,27 @@+{-# LANGUAGE NoImplicitPrelude #-}+module Data.Machine.Zlib where++import BasicPrelude+import Control.Exception (throw)+import Data.Machine+import Data.Streaming.Zlib++-- | Even though this doesn't actually do any IO, we stay in the IO monad+-- like Data.Streaming.Zlib does, to avoid any unsafe "black magic".+gunzipper :: (Functor m, MonadIO m) => ProcessT m ByteString ByteString+gunzipper = construct $ do+  inflate <- liftIO . initInflate $ WindowBits 31+  let go :: (Functor m, MonadIO m) => PlanT (Is ByteString) ByteString m ()+      go = do+        bs <- await <|> finish+        popper <- liftIO <$> liftIO (feedInflate inflate bs)+        exhaust (handleRes <$> popper) <|> go+      handleRes PRDone = Nothing+      handleRes (PRNext bs) = Just bs+      handleRes (PRError e) = throw e+      finish :: MonadIO m => PlanT (Is ByteString) ByteString m ByteString+      finish = do+        r <- liftIO $ finishInflate inflate+        yield r+        stop+  go