src/Pure/ML-Systems/polyml-5.1.ML
author wenzelm
Sun Sep 16 14:55:48 2007 +0200 (2007-09-16)
changeset 24600 5877b88f262c
parent 24584 01e83ffa6c54
child 24852 30da58e0a483
permissions -rw-r--r--
use_text/file: tune text (cf. ML_Parse.fix_ints);
     1 (*  Title:      Pure/ML-Systems/polyml-5.1.ML
     2     ID:         $Id$
     3 
     4 Compatibility wrapper for Poly/ML 5.1.
     5 *)
     6 
     7 use "ML-Systems/polyml.ML";
     8 use "ML-Systems/multithreading_polyml.ML";
     9 
    10 val pointer_eq = PolyML.pointerEq;
    11 
    12 
    13 (* improved versions of use_text/file *)
    14 
    15 fun use_text (tune: string -> string) name (print, err) verbose txt =
    16   let
    17     val in_buffer = ref (explode (tune txt));
    18     val out_buffer = ref ([]: string list);
    19     fun output () = implode (rev (case ! out_buffer of "\n" :: cs => cs | cs => cs));
    20 
    21     val line_no = ref 1;
    22     fun line () = ! line_no;
    23     fun get () =
    24       (case ! in_buffer of
    25         [] => ""
    26       | c :: cs => (in_buffer := cs; if c = "\n" then line_no := ! line_no + 1 else (); c));
    27     fun put s = out_buffer := s :: ! out_buffer;
    28 
    29     fun exec () =
    30       (case ! in_buffer of
    31         [] => ()
    32       | _ => (PolyML.compilerEx (get, put, line, name) (); exec ()));
    33   in
    34     exec () handle exn => (err (output ()); raise exn);
    35     if verbose then print (output ()) else ()
    36   end;
    37 
    38 fun use_file tune output verbose name =
    39   let
    40     val instream = TextIO.openIn name;
    41     val txt = TextIO.inputAll instream before TextIO.closeIn instream;
    42   in use_text tune name output verbose txt end;