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Re: Writing highly obfuscated code in Perl

by Wookie (Beadle)
on Jul 14, 2001 at 03:11 UTC ( #96624=note: print w/replies, xml ) Need Help??

in reply to Writing highly obfuscated code in Perl

While I admit to being very new to Perl - I find default/pre-defined variables to be a source of constant inspiration. Using $_ $@ $| etc. can really confuse things. Oh yeah - and overuse $_ - superfluously if possible - as an example from my first attempt I submitted today:
(_ is a sub that returns the input++) and now you can use any of the following - all to get 4:
$_+=$_; $_=$_*$_; $_=$_**$_;
game(Wookie,opponent) eq 'Wookie' ? undef $problem : remove_limbs(arms,opponent);

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Re: Re: Writing highly obfuscated code in Perl
by strat (Canon) on Feb 27, 2002 at 14:29 UTC
    Use strange delimiters for patternmatches and ee (or at least e)for substitutions, e.g. s?one?$another?gee

    Use ~~ instead of scalar

    (Thanks to Damian Conway for his talk "Extreme Perl" at the Perl-Workshop; the ideas abouve are from him). Use y instead of tr

    and so on and so on...

    perl -le "~~s--*l-e=>y≤*(min≤*(cme(≤=>s)[^\w]))g=>print"

    Best regards,
    perl -le "s==*F=e=>y~\*martinF~stronat~=>s~[^\w]~~g=>chop,print"

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