1 files changed, 33 insertions, 0 deletions
diff --git a/src/Plugins/StdinReader.hs b/src/Plugins/StdinReader.hs
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+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.StdinReader
+-- Copyright   :  (c) Andrea Rossato
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Jose A. Ortega Ruiz <jao@gnu.org>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- A plugin for reading from stdin
+--
+-----------------------------------------------------------------------------
+
+module Plugins.StdinReader where
+
+import Prelude hiding (catch)
+import System.Posix.Process
+import System.Exit
+import System.IO
+import Control.Exception (SomeException(..),catch)
+import Plugins
+
+data StdinReader = StdinReader
+    deriving (Read, Show)
+
+instance Exec StdinReader where
+    start StdinReader cb = do
+        cb =<< catch (hGetLineSafe stdin) (\(SomeException e) -> do hPrint stderr e; return "")
+        eof <- hIsEOF stdin
+        if eof
+            then exitImmediately ExitSuccess
+            else start StdinReader cb