Flatten Hierarchy of variables
<p>I have a Hierarchy of variables, something like</p>

<pre><code>a.b.c.d1
a.b.c.d2
a.b.c.d3
a.b.c.d4
</code></pre>

<p>now I want to have them all into local namespace:</p>

<pre><code>d1=2
d2=3
...
</code></pre>

<p>how can I accomplish that?</p>
