--- a/src/Pure/Isar/outer_lex.ML Tue May 08 17:40:20 2007 +0200
+++ b/src/Pure/Isar/outer_lex.ML Tue May 08 17:40:21 2007 +0200
@@ -204,6 +204,7 @@
fun is_sid "begin" = false
| is_sid ":" = true
+ | is_sid "::" = true
| is_sid s = is_symid s orelse Syntax.is_identifier s;