diff -r 77ea2de0ca62 -r 84aef87b348a ProgTutorial/Package/Ind_Interface.thy
--- a/ProgTutorial/Package/Ind_Interface.thy	Tue Jul 08 11:34:10 2014 +0100
+++ b/ProgTutorial/Package/Ind_Interface.thy	Wed Aug 20 14:42:14 2014 +0100
@@ -96,7 +96,7 @@
 where
   accpartI: "(\<And>y. R y x \<Longrightarrow> accpart' y) \<Longrightarrow> accpart' x"
 (*<*)ML %no{*fun filtered_input str = 
-  filter Token.is_proper (Outer_Syntax.scan Position.none str) 
+  filter Token.is_proper (Outer_Syntax.scan (Keyword.get_lexicons ()) Position.none str) 
 fun parse p input = Scan.finite Token.stopper (Scan.error p) input*}(*>*)
 text {*
   Note that in these definitions the parameter @{text R}, standing for the