You didn't specify what the content was (it should be a table, right?) and how to get to the expected result from it. So, I imagined it.

#!/usr/bin/perl
use strict;
use warnings;
use HTML::TableExtract;

my $html = "<table><tr><th>info\n<tr><td>john\n<tr><t"
         . "d>100 - 2000\n<tr><td>kent</table>";
my $table = 'HTML::TableExtract'->new();
$table->parse($html);

print "Content-type: text/text\n\n";

my @rows = $table->rows;
chomp @$_ for @rows;

my $output = join ' ', 'data:' . $rows[0][0],
                       "$rows[1][0]:" . do { $rows[2][0] =~ /- (...)/;
+ $1 },
                       "$rows[3][0]:" . substr $rows[2][0], 6, 4;
print $output;
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