I wouldn't recommend this but just to show one way it could be done with XML::XPath.

#!/usr/bin/perl
use strict;
use XML::XPath;

my $file = "test.xml";
my $xp = XML::XPath->new(filename => $file);
my $xpath = '//MsgSig';

my $i=1;
while ( $xp->exists($xpath."[$i]") ) {
  my $key  = $xp->getNodeText($xpath."[$i]/Key"); 
  my $desc = $xp->getNodeText($xpath."[$i]/Description");
  $desc .= " ($key)";  
  #print "$desc\n";
  $xp->setNodeText($xpath."[$i]/Description",$desc);
  ++$i;
}

print $xp->getNodeAsXML();

[download]
poj

In reply to Re: Appending Text of One XML Node to that of the Other by poj
in thread Appending Text of One XML Node to that of the Other by thomasd

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.