[jira] [Updated] (DAFFODIL-1512) dfdl prefix properties on dfdl annotation elements should generate useful diagnostic

["Dave Thompson (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DAFFODIL-1512?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dave Thompson updated DAFFODIL-1512:
------------------------------------
    Fix Version/s: 3.1.0

> dfdl prefix properties on dfdl annotation elements should generate useful diagnostic
> ------------------------------------------------------------------------------------
>
>                 Key: DAFFODIL-1512
>                 URL: https://issues.apache.org/jira/browse/DAFFODIL-1512
>             Project: Daffodil
>          Issue Type: Bug
>          Components: Diagnostics, Front End, Usability
>            Reporter: Mike Beckerle
>            Priority: Major
>             Fix For: 3.1.0
>
>
> A common mistake is to move short-form annotations with the dfdl: prefix from elements into the dfdl:format annotation. But then one forgets to remove the prefix dfdl: since the attributes of the dfdl:format annotation are not prefixed. So this is an error: {code}
> <dfdl:format dfdl:lengthKind="delimited" ..../>
> {code}
> When what was intended is{code}
> <dfdl:format lengthKind="delimited".... />
> {code}
> Daffodil should issue a specific diagnostic whenever it finds dfdl: prefixed attributes in the annotation elements dfdl:format, dfdl:element, dfdl:simpleType, dfdl:sequence, dfdl:choice, etc. 
> It should point out specifically that the author probably wanted to remove the prefix dfdl:



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