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(************************************************************************)
(*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)
(* <O___,, *   INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016     *)
(*   \VV/  **************************************************************)
(*    //   *      This file is distributed under the terms of the       *)
(*         *       GNU Lesser General Public License Version 2.1        *)
(************************************************************************)

open Names
open Notation_term
open Glob_term

(** {5 Utilities about [notation_constr]} *)

val eq_notation_constr : Id.t list * Id.t list -> notation_constr -> notation_constr -> bool

(** Substitution of kernel names in interpretation data                *)

val subst_interpretation :
  Mod_subst.substitution -> interpretation -> interpretation
                                                
(** Name of the special identifier used to encode recursive notations  *)

val ldots_var : Id.t

(** {5 Translation back and forth between [glob_constr] and [notation_constr]} *)

(** Translate a [glob_constr] into a notation given the list of variables
    bound by the notation; also interpret recursive patterns           *)

val notation_constr_of_glob_constr : notation_interp_env ->
  glob_constr -> notation_constr * reversibility_flag

(** Re-interpret a notation as a [glob_constr], taking care of binders *)

val glob_constr_of_notation_constr_with_binders : Loc.t ->
  ('a -> Name.t -> 'a * Name.t) ->
  ('a -> notation_constr -> glob_constr) ->
  'a -> notation_constr -> glob_constr

val glob_constr_of_notation_constr : Loc.t -> notation_constr -> glob_constr

(** {5 Matching a notation pattern against a [glob_constr]} *)

(** [match_notation_constr] matches a [glob_constr] against a notation
    interpretation; raise [No_match] if the matching fails   *)

exception No_match

type glob_decl2 =
    (name, cases_pattern) Util.union * Decl_kinds.binding_kind *
      glob_constr option * glob_constr
val match_notation_constr : bool -> glob_constr -> interpretation ->
      (glob_constr * subscopes) list * (glob_constr list * subscopes) list *
      (glob_decl2 list * subscopes) list

val match_notation_constr_cases_pattern :
  cases_pattern -> interpretation ->
  ((cases_pattern * subscopes) list * (cases_pattern list * subscopes) list) *
    (int * cases_pattern list)

val match_notation_constr_ind_pattern :
  inductive -> cases_pattern  list -> interpretation ->
  ((cases_pattern * subscopes) list * (cases_pattern list * subscopes) list) *
    (int * cases_pattern list)

(** {5 Matching a notation pattern against a [glob_constr]} *)