I don't know if this is faster (although I suspect it is) but it certainly is cooler: 
    sub substrings {
      my @ss;
      $_[0] =~ /.*?(.+?)(?{push @ss, $1})(?!)/;
      @ss;
    }

[download]

--
Mark Dominus
Perl Paraphernalia

In reply to Re: Finding all substrings by Dominus
in thread Finding all substrings by TheHobbit

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