Remind about PayPal service fees

[hcoop/zz_old/portal.git] / util.sml

diff --git a/util.sml b/util.sml
index d1c7214..f1bdcbb 100644 (file)
--- a/util.sml
+++ b/util.sml
@@ -81,4 +81,10 @@ fun readFile fname =
 
 fun mem (x, ls) = List.exists (fn y => y = x) ls
 
+val allLower = CharVector.map Char.toLower
+
+fun normEmail s = case String.tokens Char.isSpace (allLower s) of
+                     s :: _ => s
+                   | [] => ""
+
 end