<div>Hi</div>How can I use playandgetdigits to get 0 or 8 numbers? I mean it should be an empty string or 8digits long.<div>I tried this</div><div><div>play_and_get_digits 0 8 3 7000 # file1 file2 number ^$|^d{{8}}$</div>
<div>but it's not passing empty strings</div><div>thanx</div></div>