If I remember correctly, the whole line will be evaluated, so you will get
an error, because the message is evaluated, but not executed if the if
attribute is false. I think what you need for this scenario is:
<if test="${property::exists('property2'}">
<echo message="property2 is ${property2}" />
</if>
Cheers,
Bill
-----Original Message-----
From: T.G. Mutato [mailto:[EMAIL PROTECTED]
Sent: 17 February 2005 02:00
To: nant-users@lists.sourceforge.net
Subject: [Nant-users] Problem with property evaluation
<< File: TestProperties.build >> Check out this code fragment:
<target name="nowork" description="this one does not work when
property is not set">
<echo message="property2 is ${property2}"
if="${property::exists('property2')}" />
</target>
The echo statement shouldn't happen if property2 doesn't exist;
however, the following error happens:
Property evaluation failed.
Expression: property2 is ${property2}
^^^^^^^^^
Property 'property2' has not been set.
Should this be reported as a bug somewhere?
I've attached a short build file which demonstrates the issue.
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