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(*i $Id$ i*)

(*i*)
open Pp
open Extend
(*i*)

(* Syntax entry tables. *)

type frozen_t

(* pretty-printer summary operations *)
val init : unit -> unit
val freeze : unit -> frozen_t
val unfreeze : frozen_t -> unit

(* Search and add a PP rule for an ast in the summary *)
val find_syntax_entry :
  string -> Coqast.t -> (syntax_entry * Ast.env) option
val add_rule : string -> syntax_entry -> unit
val add_ppobject : syntax_command -> unit

(* Pretty-printing *)

type std_printer = Coqast.t -> std_ppcmds
type unparsing_subfunction = string -> tolerability option -> std_printer

(* Module of primitive printers *)
module Ppprim :
  sig
    type t = std_printer -> std_printer
    val add : string * t -> unit
  end

(* Generic printing functions *) 
val token_printer: std_printer -> std_printer
val print_syntax_entry : 
  string -> unparsing_subfunction -> Ast.env -> syntax_entry -> std_ppcmds
val genprint : std_printer -> unparsing_subfunction