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https://issues.apache.org/jira/browse/JEXL-438?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yair Lenga updated JEXL-438:
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Summary: Allow alternative syntax: sql/excel-like (was: Allow alternative
syntax)
> Allow alternative syntax: sql/excel-like
> ----------------------------------------
>
> Key: JEXL-438
> URL: https://issues.apache.org/jira/browse/JEXL-438
> Project: Commons JEXL
> Issue Type: New Feature
> Reporter: Yair Lenga
> Priority: Major
>
> Im using jexl3 to allow customization by end users of workflow. The users
> love the flexibility, but are having repeated issues with the grammar.
> Specifically, the == operator. I understand the parser can not be configured
> at run time flag, as it is generated code by JavaScript, and changing = to
> mean equals will change parsing logic, operator precedence, etc.
> My ask: possible to allow for an alternate parser (parser-sql.jjt), which
> will be modified/extended version of the existing parser.jjt, and will
> provide more sql/excel operators. in particular, no assignment inside
> expressions, making OR AND NOT synonym for || && and !. Accepting =, <> for
> comparisons, etc.
> Implementation can allow for a Boolean mode, 'Sqlish', same as 'antish'
> property. I'm not sure if possible to build a parser outside the jexl3 tree.
> If yes, will be nice to be able to pass a class that implement the same
> interface as the current parser.
> For my use case, I do not mind having all the jexl3 extension features, even
> the one not in the sql/excel grammar in.
>
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