Re: Copyright infringement ?
Come on, the code in question is trivial.
As a few people pointed out this is like taken from a 30+ year old basic tutorial. It will probably fail the Lego test of copyright - you cannot copyright the "natural form" of something. You can patent it, but not copyright it.
(*) I am aware that char repetition was added to the spec last year. That is still not pattern repetition or string repetition, which Perl has been able to do for more than 20 years in a single statement and Python for more than 15.