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products/Sources/formale Sprachen/PVS/vectors/ (Beweissystem der NASA Version 6.0.9^©) Datei vom 28.9.2014 mit Größe 51 kB

Quelle output.ML Sprache: SML

(*  Title:      Pure/General/output.ML
    Author:     Makarius

Isabelle output channels.
*)

signature BASIC_OUTPUT =
sig
  val writeln: string -> unit
  val tracing: string -> unit
  val warning: string -> unit
  val legacy_feature: string -> unit
end;

signature OUTPUT =
sig
  include BASIC_OUTPUT
  type output = string
  val physical_stdout: output -> unit
  val physical_stderr: output -> unit
  val physical_writeln: output -> unit
  type protocol_message_fn = Output_Primitives.protocol_message_fn
  exception Protocol_Message of Properties.T
  val protocol_message_undefined: protocol_message_fn
  val writelns: string list -> unit
  val writelns_urgent: string list -> unit
  val writeln_urgent: string -> unit
  val state: string list -> unit
  val information: string -> unit
  val error_message': serial * string -> unit
  val error_message: string -> unit
  val system_message: string -> unit
  val status: string list -> unit
  val report: string list -> unit
  val result: Properties.T -> string list -> unit
  val protocol_message: protocol_message_fn
  val try_protocol_message: protocol_message_fn
end;

signature PRIVATE_OUTPUT =
sig
  include OUTPUT
  val writeln_fn: (output list -> unit) Unsynchronized.ref
  val writeln_urgent_fn: (output list -> unit) Unsynchronized.ref
  val state_fn: (output list -> unit) Unsynchronized.ref
  val information_fn: (output list -> unit) Unsynchronized.ref
  val tracing_fn: (output list -> unit) Unsynchronized.ref
  val warning_fn: (output list -> unit) Unsynchronized.ref
  val legacy_fn: (output list -> unit) Unsynchronized.ref
  val error_message_fn: (serial * output list -> unit) Unsynchronized.ref
  val system_message_fn: (output list -> unit) Unsynchronized.ref
  val status_fn: (output list -> unit) Unsynchronized.ref
  val report_fn: (output list -> unit) Unsynchronized.ref
  val result_fn: (Properties.T -> output list -> unit) Unsynchronized.ref
  val protocol_message_fn: Output_Primitives.protocol_message_fn Unsynchronized.ref
end;

structure Private_Output: PRIVATE_OUTPUT =
struct

type output = string;  (*raw system output*)

(* primitives -- provided via bootstrap environment *)

val writeln_fn = Unsynchronized.ref Output_Primitives.writeln_fn;
val writeln_urgent_fn = Unsynchronized.ref Output_Primitives.writeln_urgent_fn;
val state_fn = Unsynchronized.ref Output_Primitives.state_fn;
val information_fn = Unsynchronized.ref Output_Primitives.information_fn;
val tracing_fn = Unsynchronized.ref Output_Primitives.tracing_fn;
val warning_fn = Unsynchronized.ref Output_Primitives.warning_fn;
val legacy_fn = Unsynchronized.ref Output_Primitives.legacy_fn;
val error_message_fn = Unsynchronized.ref Output_Primitives.error_message_fn;
val system_message_fn = Unsynchronized.ref Output_Primitives.system_message_fn;
val status_fn = Unsynchronized.ref Output_Primitives.status_fn;
val report_fn = Unsynchronized.ref Output_Primitives.report_fn;
val result_fn = Unsynchronized.ref Output_Primitives.result_fn;

type protocol_message_fn = Output_Primitives.protocol_message_fn;
val protocol_message_fn = Unsynchronized.ref Output_Primitives.protocol_message_fn;

(* physical output -- not to be used in user-space *)

fun physical_stdout s = (TextIO.output (TextIO.stdOut, s); TextIO.flushOut TextIO.stdOut);
fun physical_stderr s = (TextIO.output (TextIO.stdErr, s); TextIO.flushOut TextIO.stdErr);

fun physical_writeln "" = ()
  | physical_writeln s = physical_stdout (suffix "\n" s);  (*atomic output!*)

(* Isabelle output channels *)

exception Protocol_Message of Properties.T;

val protocol_message_undefined: Output_Primitives.protocol_message_fn =
  fn props => fn _ => raise Protocol_Message props;

fun init_channels () =
(writeln_fn := (physical_writeln o implode);
  writeln_urgent_fn := (fn ss => ! writeln_fn ss);
  state_fn := (fn ss => ! writeln_fn ss);
  information_fn := Output_Primitives.ignore_outputs;
  tracing_fn := (fn ss => ! writeln_fn ss);
  warning_fn := (physical_writeln o prefix_lines "### " o implode);
  legacy_fn := (fn ss => ! warning_fn ss);
  error_message_fn := (fn (_, ss) => physical_writeln (prefix_lines "*** " (implode ss)));
  system_message_fn := (fn ss => ! writeln_fn ss);
  status_fn := Output_Primitives.ignore_outputs;
  report_fn := Output_Primitives.ignore_outputs;
  result_fn := (fn _ => Output_Primitives.ignore_outputs);
  protocol_message_fn := protocol_message_undefined);

val _ = if Thread_Data.is_virtual then () else init_channels ();

fun writelns ss = ! writeln_fn ss;
fun writeln s = writelns [s];
fun writelns_urgent ss = ! writeln_urgent_fn ss;
fun writeln_urgent s = writelns_urgent [s];
fun state ss = ! state_fn ss;
fun information s = ! information_fn [s];
fun tracing s = ! tracing_fn [s];
fun warning s = ! warning_fn [s];
fun legacy_feature s = ! legacy_fn [("Legacy feature! " ^ s)];
fun error_message' (i, s) = ! error_message_fn (i, [s]);
fun error_message s = error_message' (serial (), s);
fun system_message s = ! system_message_fn [s];
fun status ss = ! status_fn ss;
fun report ss = ! report_fn ss;
fun result props ss = ! result_fn props ss;
fun protocol_message props body = ! protocol_message_fn props body;
fun try_protocol_message props body = protocol_message props body handle Protocol_Message _ => ();

end;

structure Output: OUTPUT = Private_Output;
structure Basic_Output: BASIC_OUTPUT = Output;
open Basic_Output;

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