X-Git-Url: http://git.megacz.com/?p=ghc-base.git;a=blobdiff_plain;f=GHC%2FIO%2FHandle%2FText.hs;h=0d0e05b4d5fc93119730580e0f434ba9b1db505e;hp=e481efd593503778db6e7c5a1708de5921327589;hb=HEAD;hpb=ac0439db2ece671089cec9ade21754c3ad22c134

diff --git a/GHC/IO/Handle/Text.hs b/GHC/IO/Handle/Text.hs
index e481efd..0d0e05b 100644
--- a/GHC/IO/Handle/Text.hs
+++ b/GHC/IO/Handle/Text.hs
@@ -1,7 +1,15 @@
+{-# LANGUAGE CPP
+           , NoImplicitPrelude
+           , RecordWildCards
+           , BangPatterns
+           , PatternGuards
+           , NondecreasingIndentation
+           , MagicHash
+           , ForeignFunctionInterface
+  #-}
 {-# OPTIONS_GHC -fno-warn-name-shadowing #-}
 {-# OPTIONS_GHC -fno-warn-unused-matches #-}
 {-# OPTIONS_HADDOCK hide #-}
-{-# LANGUAGE NoImplicitPrelude, RecordWildCards, BangPatterns #-}
 
 -----------------------------------------------------------------------------
 -- |
@@ -30,6 +38,7 @@ import GHC.IO.FD
 import GHC.IO.Buffer
 import qualified GHC.IO.BufferedIO as Buffered
 import GHC.IO.Exception
+import GHC.IO.Encoding.Failure (surrogatifyRoundtripCharacter, desurrogatifyRoundtripCharacter)
 import GHC.Exception
 import GHC.IO.Handle.Types
 import GHC.IO.Handle.Internals
@@ -271,10 +280,10 @@ unpack !buf !r !w acc0
                  else do c1 <- peekElemOff pbuf (i-1)
                          let c = (fromIntegral c1 - 0xd800) * 0x400 +
                                  (fromIntegral c2 - 0xdc00) + 0x10000
-                         unpackRB (unsafeChr c : acc) (i-2)
+                         unpackRB (desurrogatifyRoundtripCharacter (unsafeChr c) : acc) (i-2)
 #else
               c <- peekElemOff pbuf i
-              unpackRB (c:acc) (i-1)
+              unpackRB (desurrogatifyRoundtripCharacter c:acc) (i-1)
 #endif
      in
      unpackRB acc0 (w-1)
@@ -297,7 +306,7 @@ unpack_nl !buf !r !w acc0
                             then unpackRB ('\n':acc) (i-2)
                             else unpackRB ('\n':acc) (i-1)
                  else do
-                         unpackRB (c:acc) (i-1)
+                         unpackRB (desurrogatifyRoundtripCharacter c:acc) (i-1)
      in do
      c <- peekElemOff pbuf (w-1)
      if (c == '\r')
@@ -577,7 +586,7 @@ writeBlocks hdl line_buffered add_nl nl
            else do
                shoveString n' cs rest
      | otherwise = do
-        n' <- writeCharBuf raw n c
+        n' <- writeCharBuf raw n (surrogatifyRoundtripCharacter c)
         shoveString n' cs rest
   in
   shoveString 0 s (if add_nl then "\n" else "")