Steve Lawrence created DAFFODIL-2035:
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Summary: prefixLengthType and element lengthUnits only needs to be
the same when prefixIncludePrefixLength
Key: DAFFODIL-2035
URL: https://issues.apache.org/jira/browse/DAFFODIL-2035
Project: Daffodil
Issue Type: Bug
Components: Front End
Reporter: Steve Lawrence
Assignee: Steve Lawrence
Fix For: 2.3.0
Section 12.3.4 of the DFDL says:
{quote}If the prefix type is dfdl:lengthKind 'implicit' or 'explicit' then the
dfdl:lengthUnits properties of both the prefix type and the element must be the
same.{quote}
This restriction was implemented as part of DAFFODIL-114. However, it was
discovered that the Errata that led to this part of the spec was:
{quote}2.76. Section 12.3.4. When property prefixIncludesPrefixLength is ‘yes’
there are some restrictions that need to be added to enable reliable lengths to
be calculated: - If the prefix type is lengthKind 'implicit' or 'explicit' then
the lengthUnits properties of both the prefix type and the element must be the
same.{quote}
It seems this errata was not fully merged into the spec.
I believe this shoudl already work if we just modify the restriction to apply
only when prefixIncludesPrefixLength="yes". To to make this change and add
tests to verify.
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