X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=GHC%2FUnicode.hs;h=b34f677069d1f12fb6d6514192b0b33886747122;hb=a223a71a0d40523d2fb3a6b84b5da37d9fc719b8;hp=ceb3c910a84ab55a7d1ca7d7e2fdbc417340921f;hpb=fb80d56c0b7617261c93a808e9001bbb25a7562e;p=ghc-base.git

diff --git a/GHC/Unicode.hs b/GHC/Unicode.hs
index ceb3c91..b34f677 100644
--- a/GHC/Unicode.hs
+++ b/GHC/Unicode.hs
@@ -1,6 +1,7 @@
-{-# OPTIONS_GHC -XNoImplicitPrelude #-}
+{-# LANGUAGE CPP, NoImplicitPrelude, ForeignFunctionInterface #-}
 {-# OPTIONS -#include "WCsubst.h" #-}
 {-# OPTIONS_HADDOCK hide #-}
+
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  GHC.Unicode
@@ -29,9 +30,8 @@ module GHC.Unicode (
   ) where
 
 import GHC.Base
-import GHC.Real  (fromIntegral)
-import GHC.Int
-import GHC.Num   (fromInteger)
+import GHC.Real        (fromIntegral)
+import Foreign.C.Types (CInt)
 
 #include "HsBaseConfig.h"
 
@@ -63,8 +63,8 @@ isControl               :: Char -> Bool
 -- (letters, numbers, marks, punctuation, symbols and spaces).
 isPrint                 :: Char -> Bool
 
--- | Selects white-space characters in the Latin-1 range.
--- (In Unicode terms, this includes spaces and some control characters.)
+-- | Returns 'True' for any Unicode space character, and the control
+-- characters @\\t@, @\\n@, @\\r@, @\\f@, @\\v@.
 isSpace                 :: Char -> Bool
 -- isSpace includes non-breaking space
 -- Done with explicit equalities both for efficiency, and to avoid a tiresome
@@ -134,8 +134,6 @@ toTitle                 :: Char -> Char
 
 -- Regardless of the O/S and Library, use the functions contained in WCsubst.c
 
-type CInt = HTYPE_INT
-
 isAlpha    c = iswalpha (fromIntegral (ord c)) /= 0
 isAlphaNum c = iswalnum (fromIntegral (ord c)) /= 0
 --isSpace    c = iswspace (fromIntegral (ord c)) /= 0
@@ -148,9 +146,6 @@ toLower c = chr (fromIntegral (towlower (fromIntegral (ord c))))
 toUpper c = chr (fromIntegral (towupper (fromIntegral (ord c))))
 toTitle c = chr (fromIntegral (towtitle (fromIntegral (ord c))))
 
-foreign import ccall unsafe "u_iswdigit"
-  iswdigit :: CInt -> CInt
-
 foreign import ccall unsafe "u_iswalpha"
   iswalpha :: CInt -> CInt