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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