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(************************************************************************)
(*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)
(* <O___,, *   INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2012     *)
(*   \VV/  **************************************************************)
(*    //   *      This file is distributed under the terms of the       *)
(*         *       GNU Lesser General Public License Version 2.1        *)
(************************************************************************)

val warn_image : unit -> GMisc.image
val warning : string -> unit

val cb : GData.clipboard

val doc_url : unit -> string
val browse : (string -> unit) -> string -> unit
val browse_keyword : (string -> unit) -> string -> unit

(* These two functions are equivalent, the latter is named following
   glib schema, and exists in glib but is not in lablgtk2 *)
val byte_offset_to_char_offset : string -> int -> int
val glib_utf8_pos_to_offset : string -> off:int -> int

type timer = { run : ms:int -> callback:(unit->bool) -> unit;
               kill : unit -> unit }
val mktimer : unit -> timer

val do_convert : string -> string
val find_tag_limits : GText.tag -> GText.iter -> GText.iter * GText.iter
val find_tag_start : GText.tag -> GText.iter -> GText.iter
val find_tag_stop : GText.tag -> GText.iter -> GText.iter

val print_id : 'a -> unit

val select_file_for_open : title:string -> unit -> string option
val select_file_for_save :
  title:string -> ?filename:string -> unit -> string option
val try_convert : string -> string
val try_export : string -> string -> bool
val stock_to_widget :
  ?size:[`CUSTOM of int * int | Gtk.Tags.icon_size] ->
    GtkStock.id -> GObj.widget

open Format
val print_list : (formatter -> 'a -> unit) -> formatter -> 'a list -> unit

val custom_coqtop : string option ref
(* @return command to call coqtop
   - custom_coqtop if set
   - from the prefs is set
   - try to infer it else *)
val coqtop_path : unit -> string


val status : GMisc.statusbar
val push_info : string -> unit
val pop_info : unit -> unit
val clear_info : unit -> unit
val flash_info : ?delay:int -> string -> unit

val set_location : (string -> unit) ref

(* In win32, when a command-line is to be executed via cmd.exe
   (i.e. Sys.command, Unix.open_process, ...), it cannot contain several
   quoted "..." zones otherwise some quotes are lost. Solution: we re-quote
   everything. Reference: http://ss64.com/nt/cmd.html *)

val requote : string -> string

val textview_width : #GText.view_skel -> int
(** Returns an approximate value of the character width of a textview *)

type logger = Interface.message_level -> string -> unit

val default_logger : Interface.message_level -> string -> unit
(** Default logger. It logs messages that the casual user should not see. *)

(** {6 I/O operations} *)

(** A customized [stat] function. Exceptions are catched. *)

type stats = MTime of float | NoSuchFile | OtherError
val stat : string -> stats

(** Read the content of file [f] and add it to buffer [b].
    I/O Exceptions are propagated. *)

val read_file : string -> Buffer.t -> unit

(** Read what is available on a gtk input channel.
    This channel should have been set as non-blocking. *)

val io_read_all : Glib.Io.channel -> string

(** [run_command display finally cmd] allow to run a command
    asynchronously, calling [display] on any output of this command
    and [finally] when the command has returned. *)

val run_command :
  (string -> unit) -> (Unix.process_status -> unit) -> string -> unit