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petervh1
PostPosted: Tue Dec 18, 2018 4:52 am    Post subject: Binary field in DFDL Reply with quote

Centurion

Joined: 19 Apr 2010
Posts: 135
Hello

I am trying to set up a DFDL structure to model data that s all text except for one field. This one field is a binary field (it's actually a bit map of an image).

I have set up the element definition as follows:



Code:
<xsd:element dfdl:initiator="nn.nnn:" dfdl:lengthUnits="bytes" dfdl:terminator="1D" name="nnn.DAT"
         dfdl:representation="binary" type="xsd:hexBinary"/>


When I run the Test Parse I get the following error:

CTDP3011E: Character decoding error. The sequence of bytes starting at byte offset '563' is not a valid character in the encoding 'UTF-8' .

Can anyone assist?
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timber
PostPosted: Tue Dec 18, 2018 2:00 pm    Post subject: Reply with quote

Grand Master

Joined: 25 Aug 2015
Posts: 1292
I suspect that the DFDL parser is trying to look for the terminator (the two-character sequence "1D" - is that what you intended?) but in order to do that it needs to convert the bytes into characters.
Did you mean to specify the terminator as a single byte? If so, you should specify it as" %#x1D;"
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petervh1
PostPosted: Wed Dec 19, 2018 3:50 am    Post subject: Reply with quote

Centurion

Joined: 19 Apr 2010
Posts: 135
Thanks, Timber.

I changed the terminator to "%#x1D;" and the problem has been resolved.
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