#! perl
use strict;
use warnings;
use Text::CSV;

my $csv = Text::CSV->new
          (
              {
                  sep_char           => ',',
                  binary             =>  1,
                  auto_diag          =>  1,
                  allow_loose_quotes =>  1
              }
          );

while (my $row = $csv->getline(*DATA))
{
    my $notesField = $row->[25];

    if (defined $notesField) 
    {
        print "\nNotes field: |$notesField|\n\n";

        if ($notesField =~ /First Name:(.*?)(?=Last)/)
        {
            print "MATCHED!: '$1'\n";
        }
    }
    else
    {
        print "No Notes Field\n\n";
    }
}
    
$csv->error_diag() unless $csv->eof;

__DATA__
,,,,,,,,,,,,,,,,,,,,,,,,,"First Name: Dobbin Last Name: David L. Address: david@adamsonanddobbin.com City: PO Box 1326407 Pido Road State: Peterborough ZIP Code: ON Country: K9J 7H5
First Name: Dobbin Last Name: David L. E-mail: david@adamsonanddobbin.com Address: PO Box 1326407 Pido Road City: Peterborough State: ON ZIP Code: K9J 7H5",,,,,,Home,743 7790,Other,742 4524,Work,745 5751,,,,,,,,,,,Adamson And Dobbin Ltd. Mechanical Contractors,,General Manager,,,,,,,,,,,
,,,,,,,,,,,,,,,,,,,,,,,,,"First Name: Chapleau Last Name: Kathy, Ken Address: 666 FrankFirst Name: Chapleau Last Name: Kathy, Ken City: 666 Frank
",,,,,,Home,876-9863,,,,,,,,,,,,,,,Admiralty Hall,,Accountant,,,,,,,,,,,