Erik
p.s. No need to get impatient after less than a day of posting to the user list, especially on a weekend. Not to mention that this has been answered numerous times on the list and the answer is surely in the archives and most likely at the jGuru Ant FAQ, and also in the Java Development With Ant book.
On Sunday, July 6, 2003, at 10:56 AM, Morten Mortensen wrote:
Hi developers,
I seem to have zero luck on the users-list... I am getting pretty impatient...
To repeat: Given a defined property assigned the name of an environment-variable, how do I read the value of the environment-variable?
Can it be done? How?
?
Regards, Morten Sabroe Mortensen
-----Original Message-----
From: Morten Mortensen
To: 'user@ant.apache.org'
Sent: 06-07-03 05:30
Subject: Q: Double-expansion - reading environment variables "dynamically"?
Given a defined property "x" assigned the name of an environment-variable, how do I read the value of the environment-variable?
I can read the environment-variable "XXX_HOME" by introducing the environment as "env" and using "${env.XXX_HOME}" in my Ant-file.
But what if "XXX_HOME" is specified as the value of a property?
Constructed example:
<target name="test"
<property environment="env"/>
<!-- Property wired here for the example; is to be read by other means: --> <property name="x" value="XXX_HOME"/>
<!-- Gee, does some kind of double-expansion work?: --> <property name="v" value="${env.${x}}"/>
<!-- Would like to see the value identical to "${env.XXX_HOME}" here: --> <echo>Result: ${v}</echo> </target>
If anyone knows how to do this, please tell me how.
?
Morten Sabroe Mortensen
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