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https://issues.apache.org/jira/browse/DAFFODIL-2042?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16756259#comment-16756259
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Josh Adams commented on DAFFODIL-2042:
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I took a look into this and there wasn't an obvious, clean way to add more
helpful error messages without breaking a lot of the path tests.
There has been talk about doing a significant redesign allowing better
diagnostics in the somewhat near future (if I remember correctly), so perhaps
this could be revisited then.
> Poor diagnostic message for using "/" instead of "div" in expression
> --------------------------------------------------------------------
>
> Key: DAFFODIL-2042
> URL: https://issues.apache.org/jira/browse/DAFFODIL-2042
> Project: Daffodil
> Issue Type: Bug
> Components: Diagnostics
> Reporter: Brandon Sloane
> Priority: Major
> Attachments: test.dfdl.xsd
>
>
> Schemas that attempt to use the "/" character for division do not result in a
> descriptive error message.
>
> Eg. using the expression \{ 4 / 2 } results in the error:
>
> [error] Schema Definition Error: Unable to parse expression. Message: `}'
> expected but `/' found
> Next: / 2 }.
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