diff -r 023711891116 -r 48cffae8c9e0 src/Scanner.cpp
--- a/src/Scanner.cpp	Sun Aug 12 13:22:56 2012 -0700
+++ b/src/Scanner.cpp	Sun Aug 12 20:48:49 2012 -0700
@@ -39,6 +39,7 @@
     stream_(stream),
     length_(length),
     pushed_(false),
+    allowTags_(true),
     saved_('\0'),
     pos_(stream_)
 {
@@ -425,7 +426,7 @@
         return kind;
     }
 
-    if (c == ':')
+    if (c == ':' && allowTags_)
         return TOK_LABEL;
 
     putChar(c);