Implement the multiple-starters feature:

[tatoo.git] / src / ata.mli

diff --git a/src/ata.mli b/src/ata.mli
index 8b7851b..eada8d0 100644 (file)
--- a/src/ata.mli
+++ b/src/ata.mli
@@ -68,7 +68,10 @@ module Formula :
   end
 (** Modules representing the Boolean formulae used in transitions *)
 
-module Transition : Hcons.S with type data = State.t * QNameSet.t * Formula.t
+module Transition : sig
+  include Hcons.S with type data = State.t * QNameSet.t * Formula.t
+  val print : Format.formatter -> t -> unit
+end
 (** A [Transition.t] is a hashconsed triple of the state, the set of labels and the formula *)
 
 
@@ -82,9 +85,15 @@ end
 type t
 (** 2-way Selecting Alternating Tree Automata *)
 
+val uid : t -> Uid.t
+(** return the internal unique ID of the automaton *)
+
 val get_states : t -> StateSet.t
 (** return the set of states of the automaton *)
 
+val get_starting_states : t -> StateSet.t
+(** return the set of starting states of the automaton *)
+
 val get_selecting_states : t -> StateSet.t
 (** return the set of selecting states of the automaton *)
 
@@ -97,6 +106,20 @@ val get_trans : t -> QNameSet.elt -> StateSet.t -> TransList.t
 val print : Format.formatter -> t -> unit
 (** Pretty printing of the automaton *)
 
+val copy : t -> t
+(** [copy a] creates a copy of automaton [a], that is a new automaton with
+    the same transitions but with fresh states, such that [get_states a] and
+    [get_states (copy a)] are distinct
+*)
+val concat : t -> t -> t
+(** [concat a a'] creates a new automaton [a''] such that, given a set of tree
+    nodes [N], [a'' N = a' (a N)].
+*)
+
+val merge : t -> t -> t
+(** [merge a a'] creates a new automaton [a''] that evaluates both [a] and [a'']
+    in parallel
+*)
 
 module Builder :
 sig
@@ -109,10 +132,11 @@ sig
   val make : unit -> t
     (** Create a fresh builder *)
 
-  val add_state : t -> ?selecting:bool -> State.t -> unit
-    (** Add a state to the set of states of the automaton. The optional argument
-        [?selecting] (defaulting to [false]) allows to specify whether the state is
-        selecting. *)
+  val add_state : t -> ?starting:bool -> ?selecting:bool -> State.t -> unit
+  (** Add a state to the set of states of the automaton. The
+      optional arguments [?starting] and [?selecting] (defaulting
+      to [false]) allow one to specify whether the state is
+      starting/selecting. *)
 
   val add_trans : t -> State.t -> QNameSet.t -> Formula.t -> unit
     (** Add a transition to the automaton *)