Add macrodef-solution to 'propertycopy'. Thanks Stefan

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@276305 13f79535-47bb-0310-9956-ffa450edef68

docs/faq.html

@@ -917,6 +917,17 @@ shell-prompt> m4 foo.m4 > foo
 </pre>
                         <p>With AntContrib (external task library) you can do <code>
          &lt;propertycopy name="prop" from="${anotherprop}"/&gt;</code>.</p>
+                        <p>With Ant 1.6 you can simulate the AntContribs &lt;propertycopy&gt;
+         and avoid the need of an external library:</p>
+                        <pre class="code">
+&lt;macrodef name=&quot;propertycopy&quot;&gt;
+  &lt;attribute name=&quot;name&quot;/&gt;
+  &lt;attribute name=&quot;from&quot;/&gt;
+  &lt;sequential&gt;
+    &lt;property name=&quot;@{name}&quot; value=&quot;${@{from}}&quot;/&gt;
+  &lt;/sequential&gt;
+&lt;/macrodef&gt;
+</pre>
                                 <p class="faq">
       <a name="always-recompiles"></a>
       Why does Ant always recompile all my Java files?

xdocs/faq.xml

@@ -581,6 +581,17 @@ shell-prompt> m4 foo.m4 > foo
 ]]></source>
          <p>With AntContrib (external task library) you can do <code>
          &lt;propertycopy name="prop" from="${anotherprop}"/&gt;</code>.</p>
+         <p>With Ant 1.6 you can simulate the AntContribs &lt;propertycopy&gt;
+         and avoid the need of an external library:</p>
+        <source><![CDATA[
+<macrodef name="propertycopy">
+  <attribute name="name"/>
+  <attribute name="from"/>
+  <sequential>
+    <property name="@{name}" value="${@{from}}"/>
+  </sequential>
+</macrodef>
+]]></source>
       </answer>
     </faq>
   </faqsection>
@@ -1426,4 +1437,4 @@ mv /tmp/foo $ANT_HOME/bin/antRun
     </faq>
   </faqsection>
 
-</document>
+</document>