[project @ 2005-01-28 15:03:06 by simonmar]

[ghc-base.git] / GHC / Unicode.hs

diff --git a/GHC/Unicode.hs b/GHC/Unicode.hs
index a98ce24..d5846c1 100644 (file)
--- a/GHC/Unicode.hs
+++ b/GHC/Unicode.hs
@@ -1,4 +1,4 @@
-{-# OPTIONS -fno-implicit-prelude #-}
+{-# OPTIONS_GHC -fno-implicit-prelude #-}
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  GHC.Unicde
@@ -30,7 +30,7 @@ import GHC.Int
 import GHC.Word
 import GHC.Num  (fromInteger)
 
-#include "ghcconfig.h"
+#include "HsBaseConfig.h"
 
 -- | Selects the first 128 characters of the Unicode character set,
 -- corresponding to the ASCII character set.
@@ -77,6 +77,15 @@ isUpper                 :: Char -> Bool
 isLower                 :: Char -> Bool
 
 -- | Selects alphabetic Unicode characters (letters).
+--
+-- Note: the Haskell 98 definition of 'isAlpha' is:
+--
+-- >   isAlpha c = isUpper c || isLower c
+--
+-- the implementation here diverges from the Haskell 98
+-- definition in the sense that Unicode alphabetic characters which
+-- are neither upper nor lower case will still be identified as
+-- alphabetic by 'isAlpha'.
 isAlpha                 :: Char -> Bool
 
 -- | Selects alphabetic or numeric digit Unicode characters.
@@ -112,7 +121,7 @@ toLower                 :: Char -> Char
 -- -----------------------------------------------------------------------------
 -- Win32 implementation
 
-#if (defined(HAVE_WCTYPE_H) && HAVE_ISWSPACE && defined(HTYPE_WINT_T)) || mingw32_TARGET_OS
+#if (defined(HAVE_WCTYPE_H) && HAVE_ISWSPACE && defined(HTYPE_WINT_T)) || mingw32_HOST_OS
 
 -- Use the wide-char classification functions if available.  Glibc
 -- seems to implement these properly, even for chars > 0xffff, as long