let buff = Buffer.create 100 in
let f = Format.formatter_of_buffer buff in
let module F = Format in
- let rec aux ctx = function
+ let rec aux ?(toplevel=false) ctx = function
| C.Rel m ->
- (try F.fprintf f "%s" (List.nth ctx (m-1))
- with Failure _ -> F.fprintf f " -%d" (m - List.length context))
+ (try
+ let name = List.nth ctx (m-1) in
+ F.fprintf f "%s" (if name = "_" then "__"^string_of_int m else name)
+ with Failure _ -> F.fprintf f " -%d" (m - List.length context))
| C.Const r -> F.fprintf f "%s" (r2s inside_fix r)
| C.Prod ("_",s,t) ->
+ if not toplevel then F.fprintf f "(";
F.fprintf f "@[<hov 1>";
- aux ctx s;
+ (match s with
+ | C.Prod ("_",_,_) -> aux ~toplevel:false ctx s
+ | _ -> aux ~toplevel:true ctx s);
F.fprintf f "@;→ ";
- aux ("_"::ctx) t;
+ aux ~toplevel:true ("_"::ctx) t;
F.fprintf f "@]";
+ if not toplevel then F.fprintf f ")";
| C.Prod (name,s,t) ->
+ if not toplevel then F.fprintf f "(";
F.fprintf f "@[<hov 1>";
F.fprintf f "@[<hov 2>∀%s:@;" name;
- aux ctx s;
+ aux ~toplevel:true ctx s;
F.fprintf f "@].@;";
- aux (name::ctx) t;
+ aux ~toplevel:true (name::ctx) t;
F.fprintf f "@]";
+ if not toplevel then F.fprintf f ")";
| C.Lambda (name,s,t) ->
+ if not toplevel then F.fprintf f "(";
F.fprintf f "@[<hov 1>";
F.fprintf f "λ%s:" name;
- aux ctx s;
+ aux ~toplevel:true ctx s;
F.fprintf f ".@;";
- aux (name::ctx) t;
+ aux ~toplevel:true (name::ctx) t;
F.fprintf f "@]";
+ if not toplevel then F.fprintf f ")";
| C.LetIn (name,ty,t,b) ->
- F.fprintf f "let %s:" name;
- aux ctx ty;
- F.fprintf f "≝@;";
- aux ctx t;
- F.fprintf f "in@;";
- (aux (name::ctx) b)
+ if not toplevel then F.fprintf f "(";
+ F.fprintf f "@[<hov 1>";
+ F.fprintf f "let %s:@;" name;
+ aux ~toplevel:true ctx ty;
+ F.fprintf f "@;≝ ";
+ aux ~toplevel:true ctx t;
+ F.fprintf f "@;in@;";
+ (aux ~toplevel:true (name::ctx) b);
+ F.fprintf f "@]";
+ if not toplevel then F.fprintf f ")";
| C.Match (r,oty,t,pl) ->
F.fprintf f "@[<hov>match ";
- aux ctx t;
+ aux ~toplevel:true ctx t;
F.fprintf f "@;return ";
- aux ctx oty;
+ aux ~toplevel:true ctx oty;
F.fprintf f "@; @[<v>[ ";
if pl <> [] then
begin
F.fprintf f "@[<hov 2>%s ⇒@;" (r2s inside_fix (R.mk_constructor 1 r));
- aux ctx (List.hd pl);
+ aux ~toplevel:true ctx (List.hd pl);
F.fprintf f "@]";
ignore(List.fold_left
(fun i t ->
F.fprintf f "@;| @[<hov 2>%s ⇒@;" (r2s inside_fix (R.mk_constructor i r));
- aux ctx t;
+ aux ~toplevel:true ctx t;
F.fprintf f "@]";
i+1)
2 (List.tl pl));
end;
F.fprintf f "]@] @]";
| C.Appl l ->
- F.fprintf f "@[<h 2>(";
+ F.fprintf f "@[<hov 2>";
+ if not toplevel then F.fprintf f "(";
aux ctx (List.hd l);
List.iter (fun x -> F.fprintf f "@;";aux ctx x) (List.tl l);
- F.fprintf f ")@]"
+ if not toplevel then F.fprintf f ")";
+ F.fprintf f "@]"
| C.Implicit _ -> F.fprintf f "?"
| C.Meta (n,_) -> F.fprintf f "?%d" n
| C.Sort C.Prop -> F.fprintf f "Prop"
| C.Sort C.CProp -> F.fprintf f "CProp"
| C.Sort (C.Type n) -> F.fprintf f "Type%d" n
in
- aux (List.map fst context) t;
+ aux ~toplevel:true (List.map fst context) t;
F.fprintf f "@?";
Buffer.contents buff
;;
| (u,_,metasenv,subst,NCic.Fixpoint (b, fl, _)) ->
"{"^NUri.string_of_uri u^"}\n"^
"let rec "^
- String.concat "\nand " (fst
- (List.fold_right (fun (_,name,n,ty,bo) (l,i) ->
- ((name^
- " on " ^ string_of_int n ^ " : " ^
+ String.concat "\nand "
+ (List.map (fun (_,name,n,ty,bo) ->
+ name^ " on " ^ string_of_int n ^ " : " ^
ppterm ~metasenv ~subst ~context:[] ty ^ " :=\n"^
- ppterm ~metasenv ~subst ~context:[] ~inside_fix:true bo) :: l),i-1) fl
- ([],List.length fl)))
- | (u,_,_,_,NCic.Inductive (b, _,tyl, _)) -> "inductive"
+ ppterm ~metasenv ~subst ~context:[] ~inside_fix:true bo) fl)
+ | (u,_,metasenv,subst,NCic.Inductive (b, leftno,tyl, _)) ->
+ "{"^NUri.string_of_uri u^"} with "^string_of_int leftno^" fixed params\n"^
+ "inductive "^
+ String.concat "\nand "
+ (List.map (fun (_,name,ty,cl) ->
+ name^": "^ppterm ~metasenv ~subst ~context:[] ty^ " :=\n"^
+ String.concat "\n"
+ (List.map (fun (_,name,ty) ->
+ " | "^name^": "^ppterm ~metasenv ~subst ~context:[] ty)
+ cl)) tyl) ^ "."
| (u,_,metasenv,subst,NCic.Constant (_,name,None,ty, _)) ->
+ "{"^NUri.string_of_uri u^"}\n"^
"axiom " ^ name ^ " : " ^
ppterm ~metasenv ~subst ~context:[] ty ^ "\n"
| (u,_,metasenv,subst,NCic.Constant (_,name,Some bo,ty, _)) ->
+ "{"^NUri.string_of_uri u^"}\n"^
"definition " ^ name ^ " : " ^
ppterm ~metasenv ~subst ~context:[] ty ^ " := \n"^
ppterm ~metasenv ~subst ~context:[] bo ^ "\n"
;;
+
+let rec ppcontext ~subst ~metasenv = function
+ | [] -> ""
+ | (name, NCic.Decl t) :: tl ->
+ ppcontext ~subst ~metasenv tl ^
+ name ^ ": " ^ ppterm ~subst ~metasenv ~context:tl t ^ "\n"
+ | (name, NCic.Def (bo,ty)) :: tl->
+ ppcontext ~subst ~metasenv tl ^
+ name ^ ": " ^ ppterm ~subst ~metasenv ~context:tl ty ^
+ " := " ^ ppterm ~subst ~metasenv ~context:tl bo ^ "\n"
+;;