From d30dfda61ad502aac00630928b4b04964ebf54d9 Mon Sep 17 00:00:00 2001
From: simonmar <unknown>
Date: Fri, 12 Nov 2004 15:17:42 +0000
Subject: [PATCH] [project @ 2004-11-12 15:17:42 by simonmar] Add Haskell 98
 isAlpha divergence

---
 ghc/docs/users_guide/bugs.xml |   14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/ghc/docs/users_guide/bugs.xml b/ghc/docs/users_guide/bugs.xml
index 6a07c90..07ed08d 100644
--- a/ghc/docs/users_guide/bugs.xml
+++ b/ghc/docs/users_guide/bugs.xml
@@ -145,6 +145,20 @@ checking for duplicates.  The reason for this is efficiency, pure and simple.
 		octal escapes, so it seems inconsistent not to do so for integers too.</para>
 	    </listitem>
 	  </varlistentry>
+
+	  <varlistentry>
+	    <term><literal>isAlpha</literal></term>
+	    <listitem>
+	      <para>The Haskell 98 definition of <literal>isAlpha</literal>
+              is:</para>
+
+<programlisting>isAlpha c = isUpper c || isLower c</programlisting>
+
+	      <para>GHC's implementation 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 <literal>isAlpha</literal>.</para>
+	    </listitem>
 	</variablelist>
     </sect3>
   </sect2>
-- 
1.7.10.4