Support multichar punctuation
diff --git a/src/lib.rs b/src/lib.rs
index b8807d5..57f5d4a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -18,6 +18,7 @@
 mod ast;
 mod error;
 mod lookahead;
+mod span;
 
 pub use ast::*;
 pub use proc_macro2::Ident;