Hi Steve!

 

I need them both.

 

From: Steve Hanson [mailto:smh@uk.ibm.com]
Sent: segunda-feira, 17 de Setembro de 2012 18:00
To: Miguel Vieira
Cc: dfdl-wg@ogf.org
Subject: RE: [DFDL-WG] Specify field based on the beggining of the binary file

 

Is Field4 the only part of the Header that is of interest?
Do you want the full Header (as a 512 byte BLOB) and Field4 in the infoset?

Regards

Steve Hanson
Architect, Data Format Description Language (DFDL)
Co-Chair, OGF DFDL Working Group
IBM SWG, Hursley, UK
smh@uk.ibm.com
tel:+44-1962-815848



From:        Miguel Vieira <carlos.vieira@gmv.com>
To:        Steve Hanson/UK/IBM@IBMGB
Cc:        "dfdl-wg@ogf.org" <dfdl-wg@ogf.org>
Date:        17/09/2012 16:06
Subject:        RE: [DFDL-WG] Specify field based on the beggining of the binary file

First of all: Thanks! J
 
My binary data specification is:
Header: 512Bytes;
Field1: 21504 bytes (21KB);
Field2: 5Bytes;
Field3: 1Byte;
Field4: 3 Bytes  ßStating at byte 316 counting from the beginning of the file.
 
This means that Field4 is placed inside the Header field.
 
“leadingSkipBytes” or  “alignment” would do, but can you specify the place you start counting?
 
Thanks.
Miguel
 
From: Steve Hanson [mailto:smh@uk.ibm.com]
Sent: segunda-feira, 17 de Setembro de 2012 15:41
To: Miguel Vieira
Cc: dfdl-wg@ogf.org
Subject: Re: [DFDL-WG] Specify field based on the beggining of the binary file
 
Miguel, please can you send us a graphic of the data in question, I want to make sure I have understood your data correctly.

Regards

Steve Hanson
Architect, Data Format Description Language (DFDL)
Co-Chair, OGF DFDL Working Group
IBM SWG, Hursley, UK
smh@uk.ibm.com
tel:+44-1962-815848



From:        Miguel Vieira <carlos.vieira@gmv.com>
To:        "dfdl-wg@ogf.org" <dfdl-wg@ogf.org>
Date:        17/09/2012 15:03
Subject:        [DFDL-WG] Specify field based on the beggining of the binary file
Sent by:        dfdl-wg-bounces@ogf.org

 

Hi!
 
I have a binary file specification that specifies some fields referenced by the beginning of the binary info.
For instance imagine that there is a field with 1024Bytes and the next one starts at byte 512 counting from the beginning of the info.
 
Is it possible to do that using dfdl?
I’ve seen dfdl:floating, but I can’t find much info on that.
 
Thanks.

 
 

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