Admin/polyml/future/ROOT.ML

 
 fun exit 0 = (OS.Process.exit OS.Process.success): unit
   | exit _ = OS.Process.exit OS.Process.failure;
 
-use "ML-Systems/polyml.ML";
+fun reraise exn =
+  (case PolyML.exceptionLocation exn of
+    NONE => raise exn
+  | SOME location => PolyML.raiseWithLocation (exn, location));
 
-print_depth 10;
+exception Interrupt = SML90.Interrupt;
+val ord = SML90.ord;
+val chr = SML90.chr;
+val raw_explode = SML90.explode;
+val implode = SML90.implode;
+
+val pointer_eq = PolyML.pointerEq;
+
+val exception_trace = PolyML.exception_trace;
+
+open Thread;
+val seconds = Time.fromReal;
+use "General/exn.ML";
+use "ML-Systems/multithreading.ML";
+use "ML-Systems/multithreading_polyml.ML";
+use "ML-Systems/unsynchronized.ML";
+
+use "ML-Systems/ml_pretty.ML";
+
+val pretty_ml =
+  let
+    fun convert len (PolyML.PrettyBlock (ind, _, context, prts)) =
+          let
+            fun property name default =
+              (case List.find (fn PolyML.ContextProperty (a, _) => name = a | _ => false) context of
+                SOME (PolyML.ContextProperty (_, b)) => b
+              | NONE => default);
+            val bg = property "begin" "";
+            val en = property "end" "";
+            val len' = property "length" len;
+          in ML_Pretty.Block ((bg, en), map (convert len') prts, ind) end
+      | convert len (PolyML.PrettyString s) =
+          ML_Pretty.String (s, case Int.fromString len of SOME i => i | NONE => size s)
+      | convert _ (PolyML.PrettyBreak (wd, _)) =
+          ML_Pretty.Break (if wd < 99999 then (false, wd) else (true, 2));
+  in convert "" end;
+
+fun ml_pretty (ML_Pretty.Block ((bg, en), prts, ind)) =
+      let val context =
+        (if bg = "" then [] else [PolyML.ContextProperty ("begin", bg)]) @
+        (if en = "" then [] else [PolyML.ContextProperty ("end", en)])
+      in PolyML.PrettyBlock (ind, false, context, map ml_pretty prts) end
+  | ml_pretty (ML_Pretty.String (s, len)) =
+      if len = size s then PolyML.PrettyString s
+      else PolyML.PrettyBlock
+        (0, false, [PolyML.ContextProperty ("length", Int.toString len)], [PolyML.PrettyString s])
+  | ml_pretty (ML_Pretty.Break (false, wd)) = PolyML.PrettyBreak (wd, 0)
+  | ml_pretty (ML_Pretty.Break (true, _)) = PolyML.PrettyBreak (99999, 0);
 
 use "General/basics.ML";
 use "library.ML";
 use "General/alist.ML";
 use "General/table.ML";