+++ /dev/null
-(***********************************************************************)
-(* *)
-(* TAToo *)
-(* *)
-(* Kim Nguyen, LRI UMR8623 *)
-(* Université Paris-Sud & CNRS *)
-(* *)
-(* Copyright 2010-2013 Université Paris-Sud and Centre National de la *)
-(* Recherche Scientifique. All rights reserved. This file is *)
-(* distributed under the terms of the GNU Lesser General Public *)
-(* License, with the special exception on linking described in file *)
-(* ../LICENSE. *)
-(* *)
-(***********************************************************************)
-
-(*
- Time-stamp: <Last modified on 2013-03-15 18:32:22 CET by Kim Nguyen>
-*)
-
-INCLUDE "utils.ml"
-open Format
-open Utils
-
-module Make (T : Tree.Sig.S) :
- sig
- val eval : Ata.t -> T.t -> T.node -> T.node list
- end
- = struct
-
-
-IFDEF HTMLTRACE
- THEN
-DEFINE TRACE(e) = (e)
- ELSE
-DEFINE TRACE(e) = ()
-END
-
-
-
- type cache = StateSet.t Cache.N1.t
- let get c t n = Cache.N1.find c (T.preorder t n)
-
- let set c t n v = Cache.N1.add c (T.preorder t n) v
-
-
- let top_down_run auto tree node cache _i =
- let redo = ref false in
- let rec loop node =
- if node != T.nil then begin
- let parent = T.parent tree node in
- let fc = T.first_child tree node in
- let ns = T.next_sibling tree node in
- let tag = T.tag tree node in
- let states0 = get cache tree node in
- let trans0 = Ata.get_trans auto tag auto.Ata.states in
- let () =
- TRACE(Html.trace (T.preorder tree node) _i "Pre States: %a<br/>Pre Trans: %a<br/>"
- StateSet.print states0 (Ata.TransList.print ~sep:"<br/>") trans0)
- in
- let ps = get cache tree parent in
- let fcs = get cache tree fc in
- let nss = get cache tree ns in
- let is_left = node == T.first_child tree parent
- and is_right = node == T.next_sibling tree parent
- and has_left = fc != T.nil
- and has_right = ns != T.nil
- and kind = T.kind tree node
- in
- let trans1, states1 =
- Ata.eval_trans auto trans0
- fcs nss ps states0
- is_left is_right has_left has_right kind
- in
- let () =
- TRACE(Html.trace (T.preorder tree node) _i "TD States: %a<br/>TD Trans: %a<br/>" StateSet.print states1 (Ata.TransList.print ~sep:"<br/>") trans1)
- in
- if states1 != states0 then set cache tree node states1;
- let () = loop fc in
- let fcs1 = get cache tree fc in
- let trans2, states2 =
- Ata.eval_trans auto trans1
- fcs1 nss ps states1
- is_left is_right has_left has_right kind
- in
- let () =
- TRACE(Html.trace (T.preorder tree node) _i "Left BU States: %a<br/>Left BU Trans: %a<br/>" StateSet.print states2 (Ata.TransList.print ~sep:"<br/>") trans2)
- in
- if states2 != states1 then set cache tree node states2;
- let () = loop ns in
- let _trans3, states3 =
- Ata.eval_trans auto trans2
- fcs1 (get cache tree ns) ps states2
- is_left is_right has_left has_right kind
- in
- let () =
- TRACE(Html.trace (T.preorder tree node) _i "Right BU States: %a<br/>Right BU Trans: %a<br/>" StateSet.print states3 (Ata.TransList.print ~sep:"<br/>") _trans3)
- in
- if states3 != states2 then set cache tree node states3;
- if states0 != states3 && (not !redo) then redo := true
- end
- in
- loop node;
- !redo
-
- let get_results auto tree node cache =
- let rec loop node acc =
- if node == T.nil then acc
- else
- let acc0 = loop (T.next_sibling tree node) acc in
- let acc1 = loop (T.first_child tree node) acc0 in
-
- if StateSet.intersect (get cache tree node) auto.Ata.selection_states then
- node::acc1
- else
- acc1
- in
- loop node []
-
- let eval auto tree node =
- let cache = Cache.N1.create StateSet.empty in
- let redo = ref true in
- let iter = ref 0 in
- Ata.reset auto;
- while !redo do
- redo := top_down_run auto tree node cache !iter;
- incr iter;
- done;
- let r = get_results auto tree node cache in
- TRACE(Html.gen_trace (module T : Tree.Sig.S with type t = T.t) (tree));
- r
-
-end