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https://issues.apache.org/jira/browse/DAFFODIL-2802?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17698090#comment-17698090
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Mike Beckerle commented on DAFFODIL-2802:
-----------------------------------------
This is another quite problematic error. There are large schemas for textual
data formats OTH-Gold format and USMTF that are much harder to realize without
this being fixed.
The workarounds are quite ugly.
There seems to be a large number of bugs in this area currently.
> Array with optional element followed by scalar optional element drops
> separator
> -------------------------------------------------------------------------------
>
> Key: DAFFODIL-2802
> URL: https://issues.apache.org/jira/browse/DAFFODIL-2802
> Project: Daffodil
> Issue Type: Bug
> Components: Back End
> Affects Versions: 3.4.0
> Reporter: Olabusayo Kilo
> Priority: Major
> Fix For: 3.5.0
>
> Attachments: TestSeparatorSuppression.scala, suppressedseparator.tdml
>
>
> An array with a trailing optional element followed by a scalar optional
> element loses a separator when both elements are missing during an unparse.
> The trace indicates, there's a
> SuppressableSeparatorUnparserSuspendableOperation for the scalar element (se5
> in the example schema). My initial guess was that the last element in the
> array was being treated as a trailing element, but we need it to not be
> treated that way.
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