Easiest way to do this is : 

use Modern::Perl;

my $str = qq@

<note>
  <to>
    <person>Satan</person>
  </to>
  <from via="postcard" russia="with love">moneypenny</from>
  <heading></heading>
  <body></body>
</note>@;


$str =~ s@<(.*?)></\1>@@g;

say $str;

[download]
Output : 
<note>
  <to>
    <person>Satan</person>
  </to>
  <from via="postcard" russia="with love">moneypenny</from>
  
  
</note>

[download]
No modules or parsing needed, just a simple one line regex.

In reply to Re: prune xml of empty elements by Logicus
in thread prune xml of empty elements by metaperl

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