use Data::Dumper;
use diagnostics -verbose;

use constant PART => 0;
use constant REV  => 1;

print "Enter the Part Number you wish to search for: ";
my $part = <STDIN>;
chomp $part;

print "Enter the Revision for ($part): ";
my $rev = <STDIN>;
chomp $rev;

my $searchresult = search( part     => $part,
			   rev      => $rev,
			   filename => './file.db',
			   );

print ref  $searchresult
  ? "Located Part Number: @{[join ':', @$searchresult ]}\n"
  : "Your Part Number ($part) Rev ($rev) could not be found....\n";

sub search  {
	my %args = @_;
	my $retval;


	local *PARTS_DB;
	open PARTS_DB, $args{filename} or die  "Cannot open file $args{filename}: $!";
	while (my $record = <PARTS_DB>)  {
		chomp $record;
		my @record = split /\|/, $record;
		next unless $record[PART] eq $args{part}
		and $record[REV] eq $args{rev};

		close PARTS_DB or die  "Can't close PARTS_DB $args{filename}: $!";
		return \ @record;
	}
}