Fix CodingStyle#Warnings URLs

[ghc-hetmet.git] / compiler / utils / Encoding.hs

diff --git a/compiler/utils/Encoding.hs b/compiler/utils/Encoding.hs
index 152bf3c..347fd8d 100644 (file)
--- a/compiler/utils/Encoding.hs
+++ b/compiler/utils/Encoding.hs
@@ -6,6 +6,13 @@
 --
 -- -----------------------------------------------------------------------------
 
+{-# OPTIONS -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+--     http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
+-- for details
+
 module Encoding ( 
        -- * UTF-8
        utf8DecodeChar#,
@@ -26,9 +33,9 @@ module Encoding (
 #define COMPILING_FAST_STRING
 #include "HsVersions.h"
 import Foreign
-import Data.Char       ( ord, chr, isDigit, digitToInt, isHexDigit )
-import Numeric         ( showHex )
-
+import Data.Char       ( ord, chr, isDigit, digitToInt, intToDigit,
+                         isHexDigit )
+import Numeric         ( showIntAtBase )
 import Data.Bits
 import GHC.Ptr         ( Ptr(..) )
 import GHC.Base
@@ -138,6 +145,7 @@ countUTF8Chars ptr bytes = go ptr 0
 
 unPtr (Ptr a) = a
 
+utf8EncodeChar :: Char -> Ptr Word8 -> IO (Ptr Word8)
 utf8EncodeChar c ptr =
   let x = ord c in
   case () of
@@ -281,6 +289,9 @@ encode_ch c    = 'z' : if isDigit (head hex_str) then hex_str
   -- eg. strings of unicode characters come out as 'z1234Uz5678U', we
   -- could remove the 'U' in the middle (the 'z' works as a separator).
 
+       showHex = showIntAtBase 16 intToDigit
+       -- needed because prior to GHC 6.2, Numeric.showHex added a "0x" prefix
+
 zDecodeString :: EncodedString -> UserString
 zDecodeString [] = []
 zDecodeString ('Z' : d : rest)