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| Help needed on DFDL - conditional repeating CSV elements |
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| harish_td |
 Posted: Wed Oct 21, 2015 1:07 pm Post subject: Help needed on DFDL - conditional repeating CSV elements |
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Master
Joined: 13 Feb 2006
Posts: 236
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Hello,
I have a use case where CSV data arrives in the following format.
Elements A and B are simple elements. The third element (count) signals how many occurrences there are of the succeeding elements. After all occurrences are presented a CRLF signals the end of the record.
| Code: |
A1, B1,2, C1, C2
A2,B2,3,C1,C2,C3
A3,B3,1,C1
A4,B4,0
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The Occurs Count of the C group is set to Expression and the XPath of the 3rd element. I easily got this to work by extending the CSV sample that ships with the toolkit.
The DFDL parser ignores the CRLF and goes on to the second record. How do I indicate that the CRLF should not be treated as part of the C group?
Thanks |
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| fjb_saper |
| Posted: Wed Oct 21, 2015 7:54 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20697
Location: LI,NY
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Don't make it part of the C group. Make it be the record terminator... 
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| mqjeff |
| Posted: Thu Oct 22, 2015 5:13 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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DFDL also has a "group terminator". But I don't remember what it's actually called (it might simply be group terminator).
Record terminator is better if there won't be any fields after the C group.
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| timber |
| Posted: Thu Oct 22, 2015 7:03 am Post subject: |
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Grand Master
Joined: 25 Aug 2015
Posts: 1280
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In DFDL it's just called a 'terminator' whether it is on a group or an element.
I agree that modelling the line-end character(s) as a terminator is a best way forward. |
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