I have a hash of hashes that I want stored in a file. I don't want to "hand parse" it and I don't like the look of MLDBM. I thought I'd use Data::Dumper since

"The return value can be evaled to get back an identical copy of the original reference structure.

But I cannot figure out how this is done. 
#!/usr/bin/perl -w
use strict;

use Data::Dumper;

my @ray=qw(bob me other);
my %hash; 
foreach (@ray) {my %tmp=("one", "$_+1", "two", "$_+2", "three", "$_+3"
+);
        %{$hash{$_}}=%tmp}

my $ref=\%hash;
my $r2=Dumper($ref);

print $r2;

$Data::Dumper::Purity=1;
#?????????eval??

[download]
The goal would be to turn $r2 back into a hash of hashes.

In reply to use of eval and Data::Dumper by Anonymous Monk

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.