Well when I started there were no answers but oh well, I'll post my unworthy code anyway. 
set_ranged_data("1-5,6a-e,7w-z,10-13");

while(my @enumerated = get_next_range()) {
    print join("\n", @enumerated);
    print "\n";
}

{
my $data;
my $pos;

sub set_ranged_data {
    $data = shift;
    $pos = 0;
    1;
}

sub get_next_range {
    return unless $data;

    my $end_pos = index($data, ",");
    $end_pos = length($data) if ($end_pos) < 0;
    my $range = substr($data, 0, $end_pos);
    substr($data, 0, $end_pos + 1) = "";
    my @enumerated = _enumerate($range);
    wantarray ? return @enumerated
              : return \@enumerated
}
sub _enumerate {
    my $range = shift;
    return ($range) unless index($range, "-") > 0;
    my ($set, $end_point) = split /-/, $range;
    my ($begin_lead, $begin_point) = _decompose($set);
    return 
        map {$begin_lead . $_} ($begin_point .. $end_point);
}

sub _decompose {
    my $set = shift;
    my ($lead, $point) = $set =~ /^(\d+)?(\D)?$/;
    return ($lead, $point) if ($lead && $point);
    return ("", $point)    if ($point);
    return ("", $lead)     if ($lead);
    return;
}

}

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In reply to Re: need help to split list by daddyefsacks
in thread need help to split list by bfdi533

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