Just Another Perl Hacker,

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: `\\| \| {}` [download] Dave	[reply] [d/l] [select]

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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:

\*|  |  {}
[download]

Dave

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