(* Title: Pure/System/command_line.ML
Author: Makarius
Support for Isabelle/ML command line tools.
*)
signature COMMAND_LINE =
sig
val tool: (unit -> int) -> unit
val tool0: (unit -> unit) -> unit
end;
structure Command_Line: COMMAND_LINE =
struct
fun tool body =
Thread_Attributes.uninterruptible (fn restore_attributes => fn () =>
let
val rc =
restore_attributes body () handle exn =>
Exn.capture_exit 2 (fn () => (Runtime.exn_error_message exn; raise exn)) ();
in exit rc end) ();
fun tool0 body = tool (fn () => (body (); 0));
end;