X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fng_kernel%2FnCicPp.ml;h=59d6bcf488ba98bcabcf39f6fdf7b766f9b2928c;hb=8e65e5eb59904848a24506ffe55323fdcc8bf975;hp=a792e865d060dfdca75eda3b28b01d09427e1930;hpb=613bc202d0810f4386b393bfb369c62dfc78c68c;p=helm.git diff --git a/helm/software/components/ng_kernel/nCicPp.ml b/helm/software/components/ng_kernel/nCicPp.ml index a792e865d..59d6bcf48 100644 --- a/helm/software/components/ng_kernel/nCicPp.ml +++ b/helm/software/components/ng_kernel/nCicPp.ml @@ -1 +1,236 @@ -let ppterm t = "TODO";; +(* + ||M|| This file is part of HELM, an Hypertextual, Electronic + ||A|| Library of Mathematics, developed at the Computer Science + ||T|| Department, University of Bologna, Italy. + ||I|| + ||T|| HELM is free software; you can redistribute it and/or + ||A|| modify it under the terms of the GNU General Public License + \ / version 2 or (at your option) any later version. + \ / This software is distributed as is, NO WARRANTY. + V_______________________________________________________________ *) + +(* $Id$ *) + +module C = NCic +module R = NReference + +let r2s pp_fix_name r = + try + match r with + | R.Ref (u,R.Ind (_,i,_)) -> + (match NCicLibrary.get_obj u with + | _,_,_,_, C.Inductive (_,_,itl,_) -> + let _,name,_,_ = List.nth itl i in name + | _ -> assert false) + | R.Ref (u,R.Con (i,j,_)) -> + (match NCicLibrary.get_obj u with + | _,_,_,_, C.Inductive (_,_,itl,_) -> + let _,_,_,cl = List.nth itl i in + let _,name,_ = List.nth cl (j-1) in name + | _ -> assert false) + | R.Ref (u,(R.Decl | R.Def _)) -> + (match NCicLibrary.get_obj u with + | _,_,_,_, C.Constant (_,name,_,_,_) -> name + | _ -> assert false) + | R.Ref (u,(R.Fix (i,_,_)|R.CoFix i)) -> + (match NCicLibrary.get_obj u with + | _,_,_,_, C.Fixpoint (_,fl,_) -> + if pp_fix_name then + let _,name,_,_,_ = List.nth fl i in name + else + NUri.name_of_uri u ^"("^ string_of_int i ^ ")" + | _ -> assert false) + with NCicLibrary.ObjectNotFound _ -> R.string_of_reference r +;; + +let string_of_implicit_annotation = function + | `Closed -> "▪" + | `Type -> "" + | `Hole -> "□" + | `Term -> "Term" + | `Typeof x -> "Ty("^string_of_int x^")" +;; + +let ppterm ~context ~subst ~metasenv:_ ?(inside_fix=false) t = + let buff = Buffer.create 100 in + let f = Format.formatter_of_buffer buff in + let module F = Format in + let rec aux ?(toplevel=false) ctx = function + | C.Rel m -> + (try + let name = List.nth ctx (m-1) in + F.fprintf f "%s" (if name = "_" then "__"^string_of_int m else name) + with Failure "nth" | Invalid_argument "List.nth" -> + F.fprintf f " -%d" (m - List.length ctx)) + | 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 "@["; + (match s with + | C.Prod ("_",_,_) -> aux ~toplevel:false ctx s + | _ -> aux ~toplevel:true ctx s); + F.fprintf f "@;→ "; + 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 "@["; + F.fprintf f "@[∀%s:@;" name; + aux ~toplevel:true ctx s; + F.fprintf f "@].@;"; + 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 "@["; + F.fprintf f "λ%s:" name; + aux ~toplevel:true ctx s; + F.fprintf f ".@;"; + aux ~toplevel:true (name::ctx) t; + F.fprintf f "@]"; + if not toplevel then F.fprintf f ")"; + | C.LetIn (name,ty,t,b) -> + if not toplevel then F.fprintf f "("; + F.fprintf f "@["; + 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 "@[match "; + aux ~toplevel:true ctx t; + F.fprintf f "@;return "; + aux ~toplevel:true ctx oty; + F.fprintf f "@; @[[ "; + if pl <> [] then + begin + F.fprintf f "@[%s ⇒@;" + (try r2s inside_fix (R.mk_constructor 1 r) + with R.IllFormedReference _ -> "#ERROR#"); + aux ~toplevel:true ctx (List.hd pl); + F.fprintf f "@]"; + ignore(List.fold_left + (fun i t -> + F.fprintf f "@;| @[%s ⇒@;" + (try r2s inside_fix (R.mk_constructor i r) + with R.IllFormedReference _ -> "#ERROR#"); + aux ~toplevel:true ctx t; + F.fprintf f "@]"; + i+1) + 2 (List.tl pl)); + end; + F.fprintf f "]@] @]"; + | C.Appl l -> + F.fprintf f "@["; + 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); + if not toplevel then F.fprintf f ")"; + F.fprintf f "@]" + | C.Implicit annot -> + F.fprintf f "?%s" (string_of_implicit_annotation annot) + | C.Meta (n,lc) when List.mem_assoc n subst -> + let _,_,t,_ = List.assoc n subst in + aux ctx (NCicSubstitution.subst_meta lc t) + | C.Meta (n,(shift,C.Irl len)) -> + F.fprintf f "?%d(%d,%d)" n shift len + | C.Meta (n,(shift,C.Ctx l)) -> + F.fprintf f "?%d(%d,[" n shift; + if List.length l > 0 then + begin + aux ctx (NCicSubstitution.lift shift (List.hd l)); + List.iter (fun x -> F.fprintf f ",";aux ctx x) + (List.map (NCicSubstitution.lift shift) (List.tl l)); + end; + F.fprintf f "])" + | C.Sort C.Prop -> F.fprintf f "Prop" + | C.Sort (C.Type []) -> F.fprintf f "Type0" + | C.Sort (C.Type [false, u]) -> F.fprintf f "%s" (NUri.name_of_uri u) + | C.Sort (C.Type [true, u]) -> F.fprintf f "S(%s)" (NUri.name_of_uri u) + | C.Sort (C.Type l) -> + F.fprintf f "Max("; + aux ctx (C.Sort (C.Type [List.hd l])); + List.iter (fun x -> F.fprintf f ",";aux ctx (C.Sort (C.Type [x]))) + (List.tl l); + F.fprintf f ")" + in + aux ~toplevel:true (List.map fst context) t; + F.fprintf f "@?"; + Buffer.contents buff +;; + +let ppobj = function + | (u,_,metasenv,subst,NCic.Fixpoint (b, fl, _)) -> + "{"^NUri.string_of_uri u^"}\n"^ + (if b then "let rec " else "let corec ") ^ + 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) fl) + | (u,_,metasenv,subst,NCic.Inductive (b, leftno,tyl, _)) -> + "{"^NUri.string_of_uri u^"} with "^string_of_int leftno^" fixed params\n"^ + (if b then "inductive " else "coinductive ")^ + 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 ?(sep="\n") ~subst ~metasenv = function + | [] -> "" + | (name, NCic.Decl t) :: tl -> + ppcontext ~sep ~subst ~metasenv tl ^ + name ^ ": " ^ ppterm ~subst ~metasenv ~context:tl t ^ sep + | (name, NCic.Def (bo,ty)) :: tl-> + ppcontext ~sep ~subst ~metasenv tl ^ + name ^ ": " ^ ppterm ~subst ~metasenv ~context:tl ty ^ + " := " ^ ppterm ~subst ~metasenv ~context:tl bo ^ sep +;; + +let rec ppmetasenv ~subst metasenv = function + | [] -> "" + | (i,(name, ctx, ty)) :: tl -> + let name = match name with Some n -> "(\""^n^"\")" | _ -> "" in + ppcontext ~sep:"; " ~subst ~metasenv ctx ^ + " ⊢ ?"^string_of_int i^name^" : " ^ + ppterm ~metasenv ~subst ~context:ctx ty ^ "\n" ^ + ppmetasenv ~subst metasenv tl +;; + +let ppmetasenv ~subst metasenv = ppmetasenv ~subst metasenv metasenv;; + +let rec ppsubst ~subst ~metasenv = function + | [] -> "" + | (i,(name, ctx, t, ty)) :: tl -> + + let name = match name with Some n -> "("^n^")" | _ -> "" in + ppcontext ~sep:"; " ~subst ~metasenv ctx ^ + " ⊢ ?"^string_of_int i^name^" := " ^ + ppterm ~metasenv ~subst ~context:ctx t ^ " : " ^ + ppterm ~metasenv ~subst ~context:ctx ty ^ "\n" ^ + ppsubst ~subst ~metasenv tl +;; + +let ppsubst ~metasenv subst = ppsubst ~metasenv ~subst subst;; + +let _ = NCicSubstitution.set_ppterm ppterm;; +