$foo contains an x
$foo contains neither an x nor a y

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... which makes very little sense.

That particular piece of documentation in perlsyn is wrong, and is corrected by patch 33488 which will be included in Perl 5.10.1.

Paul Fenwick
Perl Training Australia

In reply to Re: Perl 5.10 given/when tricks and caveats by pjf
in thread Perl 5.10 given/when tricks and caveats by mr_mischief

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