1 files changed, 0 insertions, 12 deletions
diff --git a/ppc.sig b/ppc.sig
index ba61742..eaddbe5 100644
--- a/ppc.sig
+++ b/ppc.sig
@@ -3,14 +3,8 @@ signature PPC = sig
   structure T: TOKENIZER
 
   type t
-  type tkErrorVal
-  type tkClassErrorVal
   type tkPos
 
-  exception TkError of tkErrorVal
-  exception TkClassError of tkClassErrorVal
-
-
   datatype tkClass =
     Ctk of T.token |
     Cid |
@@ -23,10 +17,4 @@ signature PPC = sig
   val debugPrint: string -> string list -> unit
 
   val getClass: t -> tkClass list -> T.token * tkPos * t
-
-  val raiseTkError: tkPos -> string -> 'a
-  val tkErrorPrint: tkErrorVal -> unit
-
-  val raiseTkClassError: tkPos -> tkClass list -> 'a
-  val tkClassErrorPrint: tkClassErrorVal -> unit
 end