[TriLUG] Perl LinkExtor

[Scott Chilcote]

Hi Josh,

There's a functional example included in the documentation for 
HTML::LinkExtor.  You can get it by typing "perldoc HTML::LinkExtor", or 
if you prefer a formatted web version it's here:

  http://search.cpan.org/~gaas/HTML-Parser-3.34/lib/HTML/LinkExtor.pm

Someone with more LWP experience might be willing to explain why the 
parse failed.  Good luck.

     Scott C.



Joshua Gitlin wrote:

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> Hello TriLuggers,
> 
> I'm somewhat new to Perl, and I'm trying to get a script using 
> HTML::LinkExtor to work... I know I'm doing something terribly wrong. 
> What I want to do is call LinkExtor->parse() on a variable containing 
> HTML content with links (to extract those links). Here's my code:
> 
> use LWP::Simple;
> use HTML::LinkExtor;
> use Data::Dumper;
> 
> my $url = 'http://some.web.site';
> 
> my $content = get $url;
> 
> print("fetched $url\n");
> 
> my $LinxEx = HTML::LinkExtor->new();
> 
> $LinkEx->parse($content);
> 
> print Dumper($LinkEX->links);
> 
> When I run it, the URL is fetched, but Perl complains that I can't call 
> "Parse" on an undefined value. Obviously Parse() is expecting something 
> other than what I'm giving it, but I can't figure out what... And I 
> can't seem to find any documentation online about how to use the Parse() 
> function... Does anyone know anything about HTML:LinkExtor? Or can 
> anyone point me t a good resource on the web for learning Perl (or 
> something that might explain what I'm doing wrong?) Thanks in advance!
> 
> - -Josh Gitlin
> 
> 
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