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https://issues.apache.org/jira/browse/DAFFODIL-1965?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Lawrence resolved DAFFODIL-1965.
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Resolution: Fixed
Fixed in 22ac86b617280cdcaf532536ca66116e44da7912
> dfdl:assert and dfdl:discriminator "message" attribute does not work for DFDL
> Expressions
> -----------------------------------------------------------------------------------------
>
> Key: DAFFODIL-1965
> URL: https://issues.apache.org/jira/browse/DAFFODIL-1965
> Project: Daffodil
> Issue Type: Bug
> Components: Back End, Front End
> Affects Versions: 2.1.0
> Reporter: Steve Lawrence
> Assignee: Steve Lawrence
> Priority: Major
> Labels: beginner
> Fix For: 2.3.0
>
>
> The message attribute for dfdl:assert and dfdl:discriminator is allowed to be
> a DFDL expression, for example:
> {code:java}
> <dfdl:assert message="{ fn:concat('unknown case ', ../data1)
> }">...</dfdl:assert>{code}
> However, we currently treat the message as a string, and never evaluate the
> expression, even if it contains braces. To resolve this issue, we should
> create a new Evaluatable for the message attribute and pass that into the
> assert/discriminator parsers.
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