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Nice. Reading this was like comfort food.

There's a spoiler in the readmore.

  1. Fill @M with "Just another "
  2. Fill more with "strange loop"
  3. Nested godels on the stack while the global @U has data so the "Perl hacker," portion is just overwritten during $l = of escher(). Here \@I is just an iterator (though it contains some tantalizingly familiar data) so that @U can be popped properly.
    P( e( r( l( ( h( a( c( k( r( ,( "\n" ) ) ) ) ) ) ) ) ) ) )
  4. Pretend to do something with @M though really this is just another loop to go extract more stuff from the global @U.
    J( u( s( t( ( a( n( o( t( h( e( r( "strange loop" ) ) ) ) ) ) ) ) ) ) ) )
  5. print
#! /usr/bin/perl -w use strict; use vars qw( @U ); my @M = split '', "Just another "; my @I =split '', "Perl hacker,"; @U = reverse @M; unshift( @U, split '', "pool egnarts" ); print godel( godel( sub{ "\n" }, \ @I ), \ @M )->(); sub godel { my ($a, $l) = @_; return $a unless @$l; my $x = shift @$l; return escher( $x, godel( $a, $l ) ) ; } sub escher { my ($l, $m) = @_; return sub { $l = pop @U if @U; return $l . $m->(); }; }

In reply to Re: Just Another Godel, Escher, Bach hacker by diotalevi
in thread Just Another Godel, Escher, Bach hacker by FoxtrotUniform

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