Hello there, this is my first program in Perl and i have to say i find it a much simpler language than previous ones i have encountered(i.e java, prolog). My problem has to do with hooks. I am using the WWW:Robot module which acts like a web robot. Information on the module can be found at http://search.cpan.org/dist/WWW-Robot/lib/WWW/Robot.pm. I am writing some code of my own on top of this. When it goes through a web page it extracts its HTML content. Eventually i would want the content to go in a text file. My problem now is that i can't understand how to store the content in a string. The code from the WWW::Robot doc is: 
sub invoke_contents {
    my($webcrawler, $hook, $url, $response, $structure) = @_;

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I have the "Programming Perl" book and i have also looked around different tutorials but i can't understand how @_ works. Does it make something like: 
$webcrawler = @_;
$hook=@_;
.
.
.
$structure=@_;

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as in to store everything in the hook on its own? I wrote "our $contents = $structure;" in this sub so that to make the $structure variable global and be ale to use it outside the sub so as to store the content in an HTML file. Any idea if i could do what i want to do in a better way or any way that would work? Help is greatly appreciated.

20050718 Edit by ysth: code tags

In reply to Extracting information from hooks by lampros21_7

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