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https://issues.apache.org/jira/browse/DAFFODIL-1948?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16549418#comment-16549418
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Michael Beckerle edited comment on DAFFODIL-1948 at 7/20/18 4:24 PM:
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In addition dfdl:separatorSuppressionPolicy should be "trailingEmptyStrict",
not anyEmpty. (NEW: Probably incorrect - see DFDL spec 14.2.2.2 examples)
The trailingEmptyStrict policy is really the "ordinary" one. (NEW: Not really)
For optional occurrences, no empty back-to-back separators are allowed. If
there is a separator, it is expected to come with a value, which must not be
zero-length.
anyEmpty allows for back-to-back separators being always ignored no matter
where they are. Formats should explicitly allow for that.
trailingEmpty allows for well, trailing back-to-back separators. Formats should
explicitly allow that.
never - requires a maxOccurs bound and always expects that many separators.
Again this is a special behavior that formats should explicitly request.
(NEW: The above is probably all incorrect)
was (Author: mbeckerle):
In addition dfdl:separatorSuppressionPolicy should be "trailingEmptyStrict",
not anyEmpty.
The trailingEmptyStrict policy is really the "ordinary" one.
For optional occurrences, no empty back-to-back separators are allowed. If
there is a separator, it is expected to come with a value, which must not be
zero-length.
anyEmpty allows for back-to-back separators being always ignored no matter
where they are. Formats should explicitly allow for that.
trailingEmpty allows for well, trailing back-to-back separators. Formats should
explicitly allow that.
never - requires a maxOccurs bound and always expects that many separators.
Again this is a special behavior that formats should explicitly request.
> DFDLGeneralFormat has dfdl:occursCountKind 'parsed'. Should be 'implicit'
> -------------------------------------------------------------------------
>
> Key: DAFFODIL-1948
> URL: https://issues.apache.org/jira/browse/DAFFODIL-1948
> Project: Daffodil
> Issue Type: Bug
> Components: Front End
> Affects Versions: 2.1.0
> Reporter: Michael Beckerle
> Assignee: Michael Beckerle
> Priority: Major
> Fix For: 2.2.0
>
>
> Defaulting dfdl:occursCountKind to 'parsed' creates lots of undesirable
> behaviors. E.g., even optional elements (maxOccurs=1) are treated as possible
> arrays.
> The right default behavior here is given by dfdl:occursCountKind 'implicit'.
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