--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Pure/ML-Systems/polyml-5.1.ML Mon Jul 23 20:47:55 2007 +0200
@@ -0,0 +1,41 @@
+(* Title: Pure/ML-Systems/polyml-5.0.ML
+ ID: $Id$
+
+Compatibility wrapper for Poly/ML 5.1.
+*)
+
+use "ML-Systems/polyml.ML";
+
+val pointer_eq = PolyML.pointerEq;
+
+
+(* improved versions of use_text/file *)
+
+fun use_text name (print, err) verbose txt =
+ let
+ val in_buffer = ref (explode txt);
+ val out_buffer = ref ([]: string list);
+ fun output () = implode (rev (case ! out_buffer of "\n" :: cs => cs | cs => cs));
+
+ val line_no = ref 1;
+ fun line () = ! line_no;
+ fun get () =
+ (case ! in_buffer of
+ [] => ""
+ | c :: cs => (in_buffer := cs; if c = "\n" then line_no := ! line_no + 1 else (); c));
+ fun put s = out_buffer := s :: ! out_buffer;
+
+ fun exec () =
+ (case ! in_buffer of
+ [] => ()
+ | _ => (PolyML.compilerEx (get, put, line, name) (); exec ()));
+ in
+ exec () handle exn => (err (output ()); raise exn);
+ if verbose then print (output ()) else ()
+ end;
+
+fun use_file output verbose name =
+ let
+ val instream = TextIO.openIn name;
+ val txt = TextIO.inputAll instream before TextIO.closeIn instream;
+ in use_text name output verbose txt end;