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(************************************************************************)
(*         *   The Coq Proof Assistant / The Coq Development Team       *)
(*  v      *         Copyright INRIA, CNRS and contributors             *)
(* <O___,, * (see version control and CREDITS file for authors & dates) *)
(*   \VV/  **************************************************************)
(*    //   *    This file is distributed under the terms of the         *)
(*         *     GNU Lesser General Public License Version 2.1          *)
(*         *     (see LICENSE file for the text of the license)         *)
(************************************************************************)

open Constrexpr

(** {6 Pretty-print. } *)

type ppbox =
  | PpHB
  | PpHOVB of int
  | PpHVB of int
  | PpVB of int

type ppcut =
  | PpBrk of int * int
  | PpFnl

val ppcmd_of_box : ppbox -> Pp.t -> Pp.t

val ppcmd_of_cut : ppcut -> Pp.t

(** {6 Printing rules for notations} *)

type pattern_quote_style = QuotedPattern | NotQuotedPattern

(** Declare and look for the printing rule for symbolic notations *)
type unparsing =
  | UnpMetaVar of entry_relative_level * Extend.side option
  | UnpBinderMetaVar of entry_relative_level * pattern_quote_style
  | UnpListMetaVar of entry_relative_level * unparsing list * Extend.side option
  | UnpBinderListMetaVar of bool * unparsing list
  | UnpTerminal of string
  | UnpBox of ppbox * unparsing Loc.located list
  | UnpCut of ppcut

type unparsing_rule = unparsing list * entry_level
type extra_unparsing_rules = (string * string) list

val unparsing_eq : unparsing -> unparsing -> bool

val declare_generic_notation_printing_rules : notation -> reserved:bool -> extra:extra_unparsing_rules -> unparsing_rule -> unit
val declare_specific_notation_printing_rules : specific_notation -> extra:extra_unparsing_rules -> unparsing_rule -> unit
val has_generic_notation_printing_rule : notation -> bool
val find_generic_notation_printing_rule : notation -> unparsing_rule * bool * extra_unparsing_rules
val find_specific_notation_printing_rule : specific_notation -> unparsing_rule * extra_unparsing_rules
val find_notation_printing_rule : notation_with_optional_scope option -> notation -> unparsing_rule
val find_notation_extra_printing_rules : notation_with_optional_scope option -> notation -> extra_unparsing_rules
val add_notation_extra_printing_rule : notation -> string -> string -> unit