in reply to What's your favourite method of untainting?

WTF is up with the fourth option? It's got a syntax error, and I can't see how it could possibly work.
Jeff japhy Pinyan, P.L., P.M., P.O.D, X.S.: Perl, regex, and perl hacker
How can we ever be the sold short or the cheated, we who for every service have long ago been overpaid? ~~ Meister Eckhart
  • Comment on Re: What's your favourite method of untainting?

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Re^2: What's your favourite method of untainting?
by Corion (Patriarch) on Dec 16, 2005 at 16:29 UTC

    Whoops - that's a typo. It should be:

    ($foo) = ($val =~ /^(?!.).$/);

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    and the essence of it is, that it never accepts any incoming data (albeit in a roundabout way).

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