From 291fe704e9a5be0a71cd03418ec5229c99910898 Mon Sep 17 00:00:00 2001
From: Adam Chlipala <adamc@hcoop.net>
Date: Sat, 13 Sep 2008 19:53:07 -0400
Subject: Name disjointness check changed to case insensitive

---
 src/disjoint.sml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/disjoint.sml b/src/disjoint.sml
index 8dff81e7..f3a98b51 100644
--- a/src/disjoint.sml
+++ b/src/disjoint.sml
@@ -143,9 +143,11 @@ fun enter denv =
                   PM.insert (denv', pieceEnter p, PS.map pieceEnter pset))
     PM.empty denv
 
+val lowercase = CharVector.map Char.toLower
+
 fun prove1 denv (p1, p2) =
     case (p1, p2) of
-        ((NameC s1, _), (NameC s2, _)) => s1 <> s2
+        ((NameC s1, _), (NameC s2, _)) => lowercase s1 <> lowercase s2
       | _ =>
         case PM.find (denv, p1) of
             NONE => false
-- 
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