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Hi Liz, this is my attempt at decoding this clever JAPH, in fact my first attempt at decoding any JAPH, so please correct (and forgive) my analysis if wrong!

@; = (491036,8051555,4785250,3341086,912133,189089,691108);
# This is just an eye candy, an array placeholder of 7 elements
%; = qw/ He didn't,Just do to,Perl didn't understand,another it would,hacker! /;
# This constructs the %; hash variable with 4 entries, namely He, do, didn't, it:
He => didn't,Just do => do,perl didn't => understand,another it => would, hacker!
%: = qw/ ================================= ================================== Randal said it would be tough to do in sed. He didn't say he didn't understand sed. Randal understands sed quite well. Which is why he uses Perl. :-) -- Larry Wall in <7874@jpl-devvax.JPL.NASA.GOV> ================================= ================================== /;
This builds another hash lookup - %:
{ # required by redo, where to start for the redo /./ ? eval(join 't, ', qw:prin exi delphi:) : /./;
This is really (translated to):
/./ ? { print, exit, delphit, } : /./;
or just
/./ ? { print, exit, } : /./;
Clever, the first time this loop is enterred, $_ is undef, so the print and exit is not performed. delphit would have no effect (after the exit).
$:{do} = 'to';
# Another clever bit, insert the required 'do=>to' lookup pair into the hash table. How this is used will be explored later.
@; = map { join ',', '', $_, '' } values(%;);
Translates the values to the %; hash to ",xxx,", required by the lookup below
This translation is clever:
The key-value pairs in the %: hash so far
He => didn't didn't => understand do => to # manually inserted before it => would
And then... Modify the hash table %:, with values from the %; lookup.
eval '$:{q?'.$_.'?}=~s'.shift@; for keys(%;);
So that:
He => Just didn't => another do => Perl it => Hacker!
This next bit just creates the string to be printed. :-)
$_ = qq{@{[@:{qw{ He didn't do it }}]}};
The next bit goes back to the beginning of the loop, with $_ set to "Just another Perl hacker!", and of cause the print, exit, code will take over from there...
redo } x:

In reply to Re: Pe(a)rls in line noise by Roger
in thread Pe(a)rls in line noise by liz

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