diff -r c4958b2edaa5 tools/python/xen/xend/sxp.py
--- a/tools/python/xen/xend/sxp.py	Tue Oct 27 12:52:57 2009 +0000
+++ b/tools/python/xen/xend/sxp.py	Tue Oct 27 15:23:37 2009 -0600
@@ -142,7 +142,7 @@
         return self.in_class(c, ' \t\n\v\f\r')
 
     def is_separator(self, c):
-        return self.in_class(c, '{}()<>[]!;')
+        return self.in_class(c, '{}()<>[];')
 
     def in_comment_class(self, c):
         return self.in_class(c, '#')