let string_of_cop op =
if op = [] then "id" else String.concat "" (List.map string_of_op op)
+let dot_of_cop op = "\"" ^ string_of_cop op ^ "\""
+
let rec matita_of_cop v =
function
| [] -> v
let dot_of_equivalence_class (repr,others,leq,_) =
(if others <> [] then
let eq = String.concat " = " (List.map string_of_cop (repr::others)) in
- string_of_cop repr ^ "[label=\"" ^ eq ^ "\"];\n"
- else "") ^
+ dot_of_cop repr ^ "[label=\"" ^ eq ^ "\"];" ^
+ if !leq = [] then "" else "\n"
+ else if !leq = [] then
+ dot_of_cop repr ^ ";"
+ else
+ "") ^
String.concat "\n"
(List.map
(function (repr',_,_,_) ->
- string_of_cop repr' ^ " -> " ^ string_of_cop repr ^ ";") !leq)
+ dot_of_cop repr' ^ " -> " ^ dot_of_cop repr ^ ";") !leq)
(* set of equivalence classes *)
type set = equivalence_class list
let string_of_set s =
String.concat "\n" (List.map string_of_equivalence_class s)
-let ps_of_set ?processing s =
+let ps_of_set (to_be_considered,under_consideration) ?processing s =
let ch = open_out "xxx.dot" in
output_string ch "digraph G {\n";
+ (match under_consideration with
+ None -> ()
+ | Some repr ->
+ output_string ch (dot_of_cop repr ^ " [color=yellow];"));
+ List.iter
+ (function repr -> output_string ch (dot_of_cop repr ^ " [color=green];")
+ ) to_be_considered ;
output_string ch (String.concat "\n" (List.map dot_of_equivalence_class s));
+ output_string ch "\n";
(match processing with
None -> ()
| Some (repr,rel,repr') ->
+ output_string ch (dot_of_cop repr ^ " [color=red];");
output_string ch
- (string_of_cop repr' ^ " -> " ^ string_of_cop repr ^
+ (dot_of_cop repr' ^ " -> " ^ dot_of_cop repr ^
" [" ^
(if rel="=" then "arrowhead=none " else "") ^
"style=dashed];\n"));
close_out ch;
ignore (Unix.system "dot -Tps xxx.dot > xxx.ps")
-let test set rel candidate repr =
- ps_of_set ~processing:(candidate,rel,repr) set;
+let test to_be_considered_and_now set rel candidate repr =
+ ps_of_set to_be_considered_and_now ~processing:(candidate,rel,repr) set;
print_string
(string_of_cop candidate ^ " " ^ rel ^ " " ^ string_of_cop repr ^ "? ");
flush stdout;
print_endline (if res then "y" else "n");
res
-let normalize candidate set =
+let normalize to_be_considered_and_now candidate set =
let rec aux =
function
[] -> raise Not_found
| (repr,others,leq,geq) as eqclass :: tl ->
- if test set "=" candidate repr then
+ if test to_be_considered_and_now set "=" candidate repr then
(repr,others@[candidate],leq,geq)::tl
else
eqclass::(aux tl)
aux set
;;
-let locate ((repr,_,leq,geq) as node) set =
+let locate to_be_considered_and_now ((repr,_,leq,geq) as node) set =
let rec aux =
function
[] -> ()
| (repr',_,leq',geq') as node' :: tl ->
if repr = repr' then ()
- else if test set "⊆" repr repr' then
+ else if test to_be_considered_and_now set "⊆" repr repr' then
begin
leq := node' :: !leq;
geq' := node :: !geq'
end
- else if test set "⊆" repr' repr then
+ else if test to_be_considered_and_now set "⊆" repr' repr then
begin
geq := node' :: !geq;
leq' := node :: !leq'
aux set
;;
-let analyze_one i repr hecandidate (news,set) =
+let analyze_one to_be_considered repr hecandidate (news,set) =
let candidate = hecandidate::repr in
- if List.length (List.filter ((=) M) candidate) > i then
+ if List.length (List.filter ((=) M) candidate) > 1 then
news,set
else
try
- let set = normalize candidate set in
+ let set = normalize (to_be_considered,Some repr) candidate set in
news,set
with
Not_found ->
let geq = ref [] in
let node = candidate,[],leq,geq in
let set = node::set in
- locate node set;
+ locate (to_be_considered,Some repr) node set;
candidate::news,set
;;
-let rec explore i j set news =
+let rec explore i set news =
let rec aux news set =
function
[] -> news,set
| repr::tl ->
let news,set =
- List.fold_right (analyze_one i repr) [I;C;M] (news,set)
+ List.fold_right (analyze_one tl repr) [I;C;M] (news,set)
in
aux news set tl
in
let news,set = aux [] set news in
if news = [] then
begin
- print_endline ("PUNTO FISSO RAGGIUNTO! i=" ^ string_of_int i ^ " j=" ^ string_of_int j);
+ print_endline ("PUNTO FISSO RAGGIUNTO! i=" ^ string_of_int i);
print_endline (string_of_set set ^ "\n----------------");
- if i < 2 then
- explore (i+1) 1 set (List.map (function (repr,_,_,_) -> repr) set)
- else
- ps_of_set set
+ ps_of_set ([],None) set
end
else
begin
- print_endline ("NUOVA ITERAZIONE, i=" ^ string_of_int i ^ " j=" ^ string_of_int j);
+ print_endline ("NUOVA ITERAZIONE, i=" ^ string_of_int i);
print_endline (string_of_set set ^ "\n----------------");
- explore i (j+1) set news
+ explore (i+1) set news
end
in
let id = [] in
print_endline ("PRIMA ITERAZIONE, i=0, j=0");
print_endline (string_of_set set ^ "\n----------------");
ignore (Unix.system "rm -f log");
- ps_of_set set;
- explore 0 1 set [id]
+ ps_of_set ([id],None) set;
+ explore 1 set [id]
;;