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Exemplos basicos de HTML::TreeBuilder::LibXML e HTML::TreeBuilder::XPath

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EXEMPLO_1_HTML_TREEBUILDER_XPATH: {
use strict;
use warnings;
use HTML::TreeBuilder::XPath;
my $tree = HTML::TreeBuilder::XPath->new;
 
$tree->parse( <<'HTML' );
<!doctype html>
<html>
<body>
<div class="header">
</div>
<div class="conteudo">
<ul class="lista-produtos">
<li class="first">
<span class="nome">Nome Produto 1</span>
<span class="valor">R$ 1</span>
<img src="http://www.site.com/imagem1.png">
</li>
<li class="">
<span class="nome">Nome Produto 2</span>
<span class="valor">R$ 2</span>
<img src="http://www.site.com/imagem2.png">
</li>
<li class="">
<span class="nome">Nome Produto 3 - Maçã</span>
<span class="valor">R$ 3</span>
<img src="http://www.site.com/imagem3.png">
</li>
</ul>
</div>
</body>
</html>
HTML
 
my $objs = [];
 
map {
my $node = $_;
my $attrs = {
nome => qw|./span[@class="nome"]|,
valor => qw|./span[@class="valor"]|,
bla => qw|./span[@class="bla"]|,
imagem=> qw|.//img/@src|,
};
my $item = {};
map {
$item->{$_} = $node->findvalue( $attrs->{$_} )
if $node->findvalue( $attrs->{$_} ) ne '';
} keys $attrs;
push @$objs, $item if keys $item;
} $tree->findnodes(qw|//div[@class="conteudo"]/*[@class="lista-produtos"]/li|)->get_nodelist();
 
use DDP;
warn p $objs;
 
1;
}
 
EXEMPLO_2_HTML_TREEBUILDER_LIBXML: {
use strict;
use warnings;
use HTML::TreeBuilder::LibXML;
my $tree = HTML::TreeBuilder::LibXML->new;
$tree->parse( <<'HTML' );
<!doctype html>
<html>
<body>
<div class="header">
</div>
<div class="conteudo">
<ul class="lista-produtos">
<li class="first">
<span class="nome">Nome Produto 1</span>
<span class="valor">R$ 1</span>
<img src="http://www.site.com/imagem1.png">
</li>
<li class="">
<span class="nome">Nome Produto 2</span>
<span class="valor">R$ 2</span>
<img src="http://www.site.com/imagem2.png">
</li>
<li class="">
<span class="nome">Nome Produto 3 - Maçã</span>
<span class="valor">R$ 3</span>
<img src="http://www.site.com/imagem3.png">
</li>
</ul>
</div>
</body>
</html>
HTML
$tree->eof;
 
my $objs = [];
map {
my $node = $_;
my $attrs = {
nome => qw|./span[@class="nome"]|,
valor => qw|./span[@class="valor"]|,
bla => qw|./span[@class="bla"]|,
imagem=> qw|.//img/@src|,
};
my $item;
map {
$item->{$_} = $node->findvalue( $attrs->{$_} )
if $node->findvalue( $attrs->{$_} ) ne '';
} keys $attrs;
push @$objs, $item if keys $item;
} $tree->findnodes(qw|//div[@class='conteudo']/ul[@class='lista-produtos']/li|);
 
use DDP;
warn p $objs;
}
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