[ant-contrib - Help] Syntax used for nested var values???

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=4598222
By: hrauch

Hi to all ant-contrib forum members,

I'm currently struggling with the problem of how to access nested var values.
More precisely, I'm talking about my try to use something like @{@{othervar}}
to do so, which is not quite right (see also XML comment in the Ant build file
below).

Any help is greatly appreciated. Thanks in advance for any help/links, etc.
:-)))

Kind regards,

    Holger

==================================================================

<?xml version="1.0" encoding="iso-8859-1" ?>

<project name="nestedvartest" default="do" basedir=".">

  <taskdef resource="net/sf/antcontrib/antcontrib.properties"/>

  <macrodef name="varnamevalinmac">
    <attribute name="samplevar" default="NOT SET" />
    <attribute name="othervar" default="NOT SET" />
    <sequential>
      <var name="@{samplevar}" unset="true" />
      <echo message="before for loop: othervar contains @{othervar}" />
      <for list="a,b,c,d,e"
	   param="othervarval">
	<sequential>
	  <var name="@{othervar}" value="@{othervarval}" />
	  <echo message="inside for loop: @{othervar} contains @{othervarval}" />
	  <if>
	    <not>
	      <isset property="@{samplevar}" />
	    </not>
	    <then>
	      <!-- What's the right syntax for accessing @{othervar}'s value after
it has been assigned, I mean *without* using the for loop param's value??? -->
	      <var name="@{samplevar}" value="@{@{othervar}}" />
	      <echo message="@{samplevar} previously NOT set; initially contains
${@{samplevar}}" />
	    </then>
	    <else>
	      <var name="@{samplevar}" value="${@{samplevar}} @{@{othervar}}" />
	    </else>
	  </if>
	</sequential>
      </for>
      <!-- Analogous for @{samplevar}'s value -->
      <echo message="@{samplevar} contains @{@{samplevar}}" />
    </sequential>
  </macrodef>

  <target name="do">
    <varnamevalinmac samplevar="test"
		     othervar="test2" />
  </target>

</project>

===========================================================================

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