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(***********************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA-Rocquencourt & LRI-CNRS-Orsay *)
(* \VV/ *************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(***********************************************************************)
(* $Id$ *)
open Util
let boot = ref false
let batch_mode = ref false
let debug = ref false
let print_emacs = ref false
let emacs_str s = if !print_emacs then s else ""
(* Silent / Verbose *)
let silent = ref false
let make_silent flag = silent := flag; ()
let is_silent () = !silent
let is_verbose () = not !silent
let silently f x =
let oldsilent = !silent in
try
silent := true;
let rslt = f x in
silent := oldsilent;
rslt
with e -> begin
silent := oldsilent; raise e
end
let if_silent f x = if !silent then f x
let if_verbose f x = if not !silent then f x
(* The number of printed hypothesis in a goal *)
let print_hyps_limit = ref (None : int option)
let set_print_hyps_limit n = print_hyps_limit := Some n
let unset_print_hyps_limit () = print_hyps_limit := None
let print_hyps_limit () = !print_hyps_limit
let mes_ambig = ref true
let make_mes_ambig flag = mes_ambig:=flag
let is_mes_ambig() = !mes_ambig
let without_mes_ambig f x =
let old = is_mes_ambig() in
try make_mes_ambig false;
let rslt = f x in (make_mes_ambig old; rslt)
with e -> (make_mes_ambig old; raise e)
(* A list of the areas of the system where "unsafe" operation
* has been requested *)
let unsafe_set = ref Stringset.empty
let add_unsafe s = unsafe_set := Stringset.add s !unsafe_set
let is_unsafe s = Stringset.mem s !unsafe_set
(* To deal with two kinds of discharge *)
let immediate_discharge = false
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