diff -r 8ce97e5d545f -r f5d73caba4e5 src/Pure/PIDE/document.ML
--- a/src/Pure/PIDE/document.ML	Tue Aug 12 18:54:53 2014 +0200
+++ b/src/Pure/PIDE/document.ML	Tue Aug 12 20:18:27 2014 +0200
@@ -318,7 +318,7 @@
       val span =
         Lazy.lazy (fn () =>
           Position.setmp_thread_data (Position.id_only id)
-            (fn () => Outer_Syntax.parse_tokens (Keyword.get_lexicons ()) (Position.id id) text) ());
+            (fn () => Outer_Syntax.scan (Keyword.get_lexicons ()) (Position.id id) text) ());
       val _ =
         Position.setmp_thread_data (Position.id_only id)
           (fn () => Output.status (Markup.markup_only Markup.accepted)) ();