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(* File to include to get some Coq facilities under the ocaml toplevel.
   This file is loaded by include *)

#cd".";;
#directory "parsing";;
#directory "interp";;
#directory "toplevel";;
#directory "library";;
#directory "kernel";;
#directory "pretyping";;
#directory "lib";;
#directory "proofs";;
#directory "tactics";;
#directory "translate";;

#use "top_printers.ml";;
#use "vm_printers.ml";;

#install_printer  (* identifier *) ppid;;
#install_printer  (* identifier *) ppidset;;
#install_printer  (* label *) pplab;;
#install_printer  (* mod_self_id *) ppmsid;;
#install_printer  (* mod_bound_id *) ppmbid;;
#install_printer  (* dir_path *) ppdir;;
#install_printer  (* module_path *) ppmp;;
#install_printer  (* section_path *)  ppsp;;
#install_printer  (* qualid *)  ppqualid;;
#install_printer  (* kernel_name *) ppkn;;
#install_printer  (* constant *) ppcon;;
#install_printer  (* constr *)  print_pure_constr;; 
#install_printer  (* patch *) ppripos;;
#install_printer  (* values *) ppvalues;;
#install_printer ppzipper;;
#install_printer ppstack;;
#install_printer ppatom;;
#install_printer ppwhd;;
#install_printer ppvblock;;
#install_printer  (* bigint *) ppbigint;;
#install_printer  (* loc *) pploc;;

let qid = Libnames.qualid_of_string;;

(* parsing of terms *)

let parse_constr = Pcoq.parse_string Pcoq.Constr.constr;;
let parse_tac    = Pcoq.parse_string Pcoq.Tactic.tactic;;
let parse_vernac = Pcoq.parse_string Pcoq.Vernac_.vernac;;

(* build a term of type rawconstr without type-checking or resolution of 
   implicit syntax *)

let e s =
  Constrintern.intern_constr Evd.empty (Global.env()) (parse_constr s);;

(* build a term of type constr with type-checking and resolution of 
   implicit syntax *)

let constr_of_string s = 
  Constrintern.interp_constr Evd.empty (Global.env()) (parse_constr s);;

(* get the body of a constant *)

open Declarations;;

let constbody_of_string s =
  let b = Global.lookup_constant (Nametab.locate_constant (qualid_of_sp (path_of_string s))) in
  Util.out_some b.const_body;;

(* Get the current goal *)

let getgoal x = top_goal_of_pftreestate (Pfedit.get_pftreestate x);;

let get_nth_goal n = nth_goal_of_pftreestate n (Pfedit.get_pftreestate ());;
let current_goal () = get_nth_goal 1;;

let pf_e gl s = 
  Constrintern.interp_constr (project gl) (pf_env gl) (parse_constr s);;

open Toplevel
let go = loop