HTML::TreeBuilder is a pretty good tool for this sort of work, especially if the format of the HTML is consistent for the data you need to extract. Consider:
use strict;
use warnings;
use HTML::TreeBuilder;
my $root = HTML::TreeBuilder->new ();
$root->parse_file (*DATA);
for ($root->look_down ('_tag', 'a')) {
my $href = $_->attr ('href');
next if ! $href;
my $sib = $_->right ()->right ();
my $number = $sib->as_text ();
print "$href: $number\n";
}
__DATA__
<a name="a"></a>
<h2>A</h2>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr>
<td>
<table id="a" border="1" bordercolor="#333366" cellpadding="5
+" cellspacing="0" width="100%">
<tr>
<td width="33%" class="clsTableBody" valign="top" id="f
+irstCol">
<a href="pdf\c76b834e-36e1-497b-b13e-eba2348dc044.
+pdf" target="_blank">Abbott, Evelyn</a><br/><span>110136892</span><br
+/>
<a href="pdf\8a956f66-1c60-48fc-905c-b49d617aa6c5.
+pdf" target="_blank">Agnew, Thomas</a><br/><span>110377660</span><br/
+></td>
<td width="34%" class="clsTableBodyClear" valign="top"
+id="secondCol"><a href="pdf\37d3e78b-1adb-458b-9e89-0df780909f08.pdf"
+ target="_blank">Allison, David</a><br/><span>108116112</span><br/><a
+ href="pdf\6c0a5bb4-143d-4305-957b-796c8193d07a.pdf" target="_blank">
+Allison, Gary Owen</a><br/><span>116815754</span><br/></td>
<td width="33%" class="clsTableBody" valign="top" id="t
+hirdCol"><a href="pdf\ae8d51e0-005b-44be-84cb-3c9b57335755.pdf" targe
+t="_blank">Arsenault, Michael</a><br/><span>108318866</span><br/><a h
+ref="pdf\e646f948-f78d-4463-a01d-0261aebf70dc.pdf" target="_blank">Ar
+senault, Normand A.</a><br/><span>113069066</span><br/></td>
</tr>
</table>
</td>
</tr>
</table>
Prints:
pdf\c76b834e-36e1-497b-b13e-eba2348dc044.pdf: 110136892
pdf\8a956f66-1c60-48fc-905c-b49d617aa6c5.pdf: 110377660
pdf\37d3e78b-1adb-458b-9e89-0df780909f08.pdf: 108116112
pdf\6c0a5bb4-143d-4305-957b-796c8193d07a.pdf: 116815754
pdf\ae8d51e0-005b-44be-84cb-3c9b57335755.pdf: 108318866
pdf\e646f948-f78d-4463-a01d-0261aebf70dc.pdf: 113069066
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