X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=GHC%2FUnicode.hs;h=b34f677069d1f12fb6d6514192b0b33886747122;hb=f98950484a7cb01e43352e3d88277a2784cd58bf;hp=d90c96e3dd3a6aa9809cebd77ab0dce21c34a9db;hpb=280f54592dfa7af126943f65dce075890d6240bc;p=ghc-base.git

diff --git a/GHC/Unicode.hs b/GHC/Unicode.hs
index d90c96e..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
@@ -31,7 +32,6 @@ module GHC.Unicode (
 import GHC.Base
 import GHC.Real        (fromIntegral)
 import Foreign.C.Types (CInt)
-import GHC.Num         (fromInteger)
 
 #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