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https://issues.apache.org/jira/browse/FREEMARKER-141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17087043#comment-17087043
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Siegfried Goeschl commented on FREEMARKER-141:
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Did not manage the selective overwrite - not sure if this is useful
> freemarker-cli: Expose user-supplied parameters in the data model
> -----------------------------------------------------------------
>
> Key: FREEMARKER-141
> URL: https://issues.apache.org/jira/browse/FREEMARKER-141
> Project: Apache Freemarker
> Issue Type: Task
> Reporter: Siegfried Goeschl
> Assignee: Siegfried Goeschl
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Currently user-supplied parameters are passed as "-Pname=value" and are not
> directly accessible from the provide data model (only via SystemTool)
> We would like to implement the following improved way to handle user-supplied
> ```
> -P name=value => access via ${name}
> -P name:group=value access via ${group.name}
> ```
> Some thoughts along the line
> * It would be nice if user-supplied parameter selectively overwrite other
> entries in the data model, e.g. overwrite a value provided from a property or
> JSON file
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