Well, first, it won't work to mix your types like this: 
  $links{$url}{html} = $html;
  ...
    $links{$new_url} = 1;

[download]
The value at $links{$some_key} cannot both simultaenously be the number one and a subhash reference. I suggest you change it to: 
$links{$new_url}{visited} = 0;

[download]
Then when you actually visit the node, change that 0 to a 1, and put the HTML in there.

However, if all you're writing is a link checker or recursive web walker, you'd be about the 492nd person to do it this month. I suggest you save lots of time and look at WWW::Robot or WWW::SimpleRobot or any of my columns on that subject.

-- Randal L. Schwartz, Perl hacker
Be sure to read my standard disclaimer if this is a reply.

In reply to •Re: Creating loop on undefined hash key value by merlyn
in thread Creating loop on undefined hash key value by S_Shrum

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