I think the fat comma is used here for aestethical reasons, as /regexp/ is applied to @_. I am also guilty of that sometimes. The notation makes sense sometimes, originally for key-value pairs in hashes :

  my %hash = ( foo => bar );

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You can also use it for the parameters if you have a subroutine that acts as a pipeline :

  sub transform {
    my ($source, $target) = @_;
    ...
  };

  transform( 'input/start.file' => 'output/' );

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In that case, the "arrow" could be interpreted also in the mapping sense.

perl -MHTTP::Daemon -MHTTP::Response -MLWP::Simple -e ' ;    # The  
$d = new HTTP::Daemon and fork and getprint $d->url and exit;#spider
($c = $d->accept())->get_request(); $c->send_response( new   #in the
HTTP::Response(200,$_,$_,qq(Just another Perl hacker\n))); ' #  web

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In reply to Re: Re: Re: perl grep by Corion
in thread perl grep by RandomWalk

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