I'm trying to build my own XML parser and have encountered an interesting problem. I need a way of programmatically accessing a hash in order to transfer the XML data structure into that hash. 
Example XML:

<one>
    <two>
        <three>
        value
        </three>
    </two>
<one>

[download]
Parsing the XML is easy enough, but how to put what I have captured into a hash? I'm thinking something along the lines of: 
#!/usr/bin/perl
use strict;
use warnings;
use Data::Dumper;


my $DATA;
my @keys=qq(one two three);# Data we captured from parsing above XML
my $newhash=&pfm(@keys,'value');# Make a new hash?
$DATA={%$DATA,%$newhash};# Slap it back into the main data hash, repea
+t as necessary?

sub pfm{

}

print Dumper $hash;

$hash = {
          'one' => {
                     'two' => {
                                'three' => 'value'
                              }
                   }
        };

[download]
Ideas? (other than just use XML::Simple !!) Not much info out there about dynamic building of hashes.

In reply to Programmatic access of hashes by rthawkcom

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.