From: Olonichev Sergei <olonichev@...>
Date: 2002-03-01T23:54:20+09:00
Subject: Re: Ruby Regular Expression problem

> pigeon% perl -Dr -e '/X(?:.*..?.)+X/'
>
> rarest char X at 0
> anchored `X' at 0 floating `X' at 3..2147483647 (checking floating) minlen
4
>
>  Floating at 3.. is important
>
>
> Guy Decoux

Could you explain this output or/and send a link where Perl RE optimization
method is described?

BR,
Sergei