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https://issues.apache.org/jira/browse/VELOCITY-680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12675197#action_12675197
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Nathan Bubna commented on VELOCITY-680:
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Why? That looks much harder to implement, requires parser changes, and lacks
both the flexibility and extensibility of Claude's full idea. Yeah, i agree it
looks a bit nicer than:
#set( $parse.x = "foo" )
But not enough nicer to be worth the extra work and reduced rewards. And
seriously, i've been working on VELOCITY-704 for just a couple hours. Rough as
it is, it's working great so far, to the point where i'm more pleased with the
idea than i was when i began. I see a lot of potential here. And the real
kicker is that i'm completely able to do this in the trunk, no sweat, no
radical changes. This means we could deprecate the things it replaces now and
clean them out in 2.0.
> RFC: New #local directive that behaves like #set but puts things into local
> context in macro rendering
> ------------------------------------------------------------------------------------------------------
>
> Key: VELOCITY-680
> URL: https://issues.apache.org/jira/browse/VELOCITY-680
> Project: Velocity
> Issue Type: New Feature
> Affects Versions: 1.7
> Reporter: Jarkko Viinamäki
> Attachments: velocity-local-directive-1.1.patch,
> velocity-local-directive.patch
>
>
> It would be very useful to be able to set variables that are in local macro
> scope. That is, they do not overwrite "global" variables and are thrown away
> after macro rendering. This would allow people to build macro libraries that
> do not clash so easily with each other.
> There is some implementation of a "LocalDirective" in
> experimental/localdirective but I didn't quite get it and it doesn't follow
> the same syntax as #set. I used a few minutes to hack together this
> alternative implementation which behaves exactly like #set but it puts things
> in local context only.
> There's only one test case since this is Request-for-Comments type of patch.
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