Here is what afoken was talking about -- instead of this:

    my ($type, $restofstring) = /^type=(\w+) (.+)$/;
    for $restofstring (split) {
        my ($key, $val) = split /=/, $restofstring;
        $hash{$type}{$key} = $val;
    }
[download]

you should do this:

    my ($type, $restofstring) = /^type=(\w+) (.+)$/;
    for $token ( split ' ', $restofstring ) {
        my ($key, $val) = split /=/, $token;
        $hash{$type}{$key} = $val;
    }
[download]