use Perl::Golf;

sub re{
$_=pop;s/Re:\s*/\x01/g;s/Re(\d+):\s*/"\x01"x$1/eg;s/(\x01+)/"Re".
length($1).": "/e;$_;
}

[download]
As in: print re("Re: Re: Re: Re: Re: Re: Reply\n"); Returns: Re6: Reply

In reply to Re^7: Reply by tadman
in thread Re: Re: Re: Re: Re: Re: Reply by John M. Dlugosz

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