File registering bug?

From: Wijck, Bart van <"Wijck,>
Date: Mon, 26 Jan 2004 12:34:07 +0100

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Hi,

I'm using Stewart Greenhill's Dbu subsystem to fetch financial pages from
the internet, using top module DbuClient.GetFile (for BlackBox 1.4) as
follows:

PROCEDURE GetFile* (host, resource, dir : ARRAY OF CHAR; name : Files.Name)
: Files.File;

At the end of this procedure the file is registered with
c.file.Register(name, "TXT", Files.ask, res); This appears unrelated to the
File.File pointer returned.

If I comment out this regitration step, and directly try to process the file
via the pointer as follows

        IF f = NIL THEN
                Log.String("Test Failed"); Log.Ln;
        ELSE
                Log.String("Test Succeeded"); Log.Ln;
                r := f.NewReader(NIL);
                WHILE ~r.eof DO
                        r.ReadByte(b); ch := CHR(b);
                        (* further processing here *)
                END;
                f.Close;
        END;

then the menu items (File, Edit. Attribute, Info etc.) of BlackBox get
screwed up (repeat themselves all along the top, does not seem to affect the
further working of BlackBox).
So a) if I already have the file pointer why do I still need to register it,
and b) surely this should produce a trap or something and not screw up the
general menu at the top.

Any answers?

Bart

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Received on Mon Jan 26 2004 - 12:34:07 UTC