Full implem of BU_over_Max and TP_max (to be tested) + my.xml from thesis + stuffs...

[tatoo.git] / src / formula.ml

diff --git a/src/formula.ml b/src/formula.ml
index 03618c2..c75748f 100644 (file)
--- a/src/formula.ml
+++ b/src/formula.ml
@@ -80,7 +80,21 @@ let rec eval_form ss f = match expr f with
   | Or(f1,f2) -> eval_form ss f1 || eval_form ss f2
   | Atom(dir, b, s) -> 
     let set = match dir with |`Left -> fst ss | `Right -> snd ss in
-    StateSet.mem s set
+    if b then StateSet.mem s set
+    else not (StateSet.mem s set)
+
+let rec infer_form ssq ssr f = match expr f with
+  | False -> false
+  | True -> true
+  | And(f1,f2) -> infer_form ssq ssr f1 && infer_form ssq ssr f2
+  | Or(f1,f2) -> infer_form ssq ssr f1 || infer_form ssq ssr f2
+  | Atom(dir, b, s) -> 
+    let setq, setr = match dir with
+      |`Left -> fst ssq, fst ssr
+      | `Right -> snd ssq, fst ssr in
+    (* WG: WE SUPPOSE THAT Q^r and Q^q are disjoint ! *)
+    let mem =  StateSet.mem s setq || StateSet.mem s setr in
+    if b then mem else not mem
 (* End *)
 
 let rec print ?(parent=false) ppf f =