HTML::TreeBuilder::LibXML3pm

Usage

    use HTML::TreeBuilder::LibXML;
    my $tree = HTML::TreeBuilder::LibXML->new;
    $tree->parse($html);
    $tree->eof;
    # $tree and $node compatible to HTML::Element
    my @nodes = $tree->findvalue($xpath);
    for my $node (@nodes) {
        print $node->tag;
        my %attr = $node->all_external_attr;
    }
    HTML::TreeBuilder::LibXML->replace_original(); # replace HTML::TreeBuilder::XPath->new

Overview

HTML::TreeBuilder::XPath is libxml based compatible interface to HTML::TreeBuilder, which could be slow for a large document.

HTML::TreeBuilder::LibXML is drop-in-replacement for HTML::TreeBuilder::XPath.

This module doesn't implement all of HTML::TreeBuilder and HTML::Element APIs, but enough methods are defined so modules like Web::Scraper work.

Benchmark

This is a benchmark result by tools/benchmark.pl

        Web::Scraper: 0.26
        HTML::TreeBuilder::XPath: 0.09
        HTML::TreeBuilder::LibXML: 0.01_01
                     Rate  no_libxml use_libxml
        no_libxml  5.45/s         --       -94%
        use_libxml 94.3/s      1632%         --

Thanks to

woremacx++ http://d.hatena.ne.jp/woremacx/20080202/1201927162

id:dailyflower