Just Another Perl Hacker,


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Just Another Perl Hacker,

by choroba (Cardinal)

on Dec 21, 2018 at 15:43 UTC ( [id://1227570]=obfuscated: print w/replies, xml )

Need Help??

Having fun with references.

print map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[
+{}],[sub{}^*ARGV,3];
[download]

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,
[download]

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Re: Just Another Perl Hacker,
by davido (Cardinal) on Dec 22, 2018 at 01:07 UTC

This term is quite clever:

\* || {}
[download]

Take a reference to the typeglob *| (obtaining something like GLOB(0x23d84f0)) and OR it with the stringified value of {} (which is something like HASH(0x217f328). The strings "GLOB" and "HASH" when ORed together as "GLOB"|"HASH" evaluate to "OM_J". The character at index 3 is J.

The whitespace obfuscated well because it looks more intuitive than the actual syntax. Here is how it parses: