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https://issues.apache.org/jira/browse/VELOCITY-50?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Will Glass-Husain resolved VELOCITY-50.
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Resolution: Won't Fix
This is expected behavior for Velocity at this point. #if can be used to
detect boolean values or to detect existence of a reference.
> RFE: invalid parameters for #if directive should be a parse error?
> ------------------------------------------------------------------
>
> Key: VELOCITY-50
> URL: https://issues.apache.org/jira/browse/VELOCITY-50
> Project: Velocity
> Issue Type: Improvement
> Components: Engine
> Affects Versions: 1.5
> Environment: Operating System: All
> Platform: PC
> Reporter: Daniel Dekany
> Priority: Minor
> Fix For: 1.6
>
>
> The 3 lines below will print two No-s and one Yes:
> #if('foo') Yes #else No #end
> #if(1) Yes #else
> No #end
> #if(true) Yes #else No #end
> while the 4 lines bellow will print two Yes-es as
> expected:
> #set($x = 'foo')
> #if($x) Yes #else No #end
> #set($x = 1)
> #if($x) Yes #else No
> #end
> Also, the 2 lines below will print false:
> #set($x = 'x' && true)
> $x
> (Please
> ignore possible false line breaks inserted by bugzilla.)
> Tried with 1.2 Stable and 1.3
> Nightly 22/03
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