Can you provide examples of parsing HTML?

Question

How do you parse HTML with a variety of languages and parsing libraries?

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When answering:

Individual comments will be linked to in answers to questions

Answer 1

Language: Perl
Library: pQuery

use strict;
use warnings;
use pQuery;

my $html = join '',
    "",
    (map { qq($_) } qw/foo bar baz/),
    "";

pQuery( $html )->find( 'a' )->each(
    sub {  
        my $at = $_->getAttribute( 'href' ); 
        print "$at\n" if defined $at;
    }
);