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https://issues.apache.org/jira/browse/DAFFODIL-2801?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17699836#comment-17699836
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Mike Beckerle commented on DAFFODIL-2801:
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Hmmm.
First, the sequence inside the definition of arre1 is unnecessary and in fact
doesn't do anything as it contains only 1 term, which is a choice. So its
separator is never considered. We should remove it and make sure the behavior
does not change before we do anything else.
Next....
DFDL spec section 14.2.2 says: "When dfdl:occursCountKind is 'parsed' any
number of occurrences and their separators are expected. The
dfdl:separatorSuppressionPolicy of the sequence {*}_must be 'anyEmpty' and it
is a Schema Definition Error otherwise._{*}"
We're not checking this. So that's one bug. (Note: This bug may cause backward
compatibility issues when fixed.)
So let's imagine we were enforcing this. That means the 'parsed' flavor with
root element e1, is illegal, so we have to figure out how to make the other one
with root element e2 work.
I think we need to try this: element arre1 must be surrounded in its own
sequence with infix separator "/". Then we can try giving that sequence SSP
'trailingEmpty' vs. "anyEmpty' and see what changes.
> Array with Choice parses incorrectly when occursCountKind is implicit
> ---------------------------------------------------------------------
>
> Key: DAFFODIL-2801
> URL: https://issues.apache.org/jira/browse/DAFFODIL-2801
> Project: Daffodil
> Issue Type: Bug
> Components: Back End
> Affects Versions: 3.4.0
> Reporter: Olabusayo Kilo
> Assignee: Steve Lawrence
> Priority: Major
> Fix For: 3.5.0
>
> Attachments: TestImplicitvParsed.scala, implicitvparsed.tdml
>
>
> When an inner array with an infix separator (contained in a sequence with a
> prefix separator) has a choice within it and is occurs count kind implicit,
> it's unable to correctly backtrack and find the separator and fails with a
> separator not found. The exact same scenario with the OCK set to parsed,
> works as expected. Attached are the tdml files.
> Tested with 3.4.0 and 3.5.0 snapshot.
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