1 files changed, 6 insertions, 2 deletions
diff --git a/lib/qparser/lexbuf.mli b/lib/qparser/lexbuf.mli
index dd13da4..ac3b262 100644
--- a/lib/qparser/lexbuf.mli
+++ b/lib/qparser/lexbuf.mli
@@ -44,7 +44,7 @@ val rollback : t -> unit
 *)
 
 type lexer = t -> Tokens.token
-type buffer_builder = Buffer.t -> lexer
+and buffer_builder = ?nested:bool -> Buffer.t -> t -> Tokens.token
 
 type stringWraper = {
   start_string : lexer -> lexer;
@@ -60,13 +60,15 @@ type stringWraper = {
 }
 
 type state =
-  | Token of stringWraper  (** Default state, parsing the tokens *)
+  | Token  (** Default state, parsing the tokens *)
   | String of stringWraper  (** String enclosed by [''] *)
   | MString of int  (** String enclosed by [{}]*)
   | EndString of stringWraper
       (** State raised just before closing the string *)
   | Expression  (** Expression where [!] is an operator *)
 
+val pp_state : Format.formatter -> state -> unit
+
 val state : t -> state option
 (** Get the current state for the lexer. 
 
@@ -77,3 +79,5 @@ val enter_state : t -> state -> unit
 
 val leave_state : t -> unit
 (** Leave the current state *)
+
+val overlay : t -> lexer -> lexer