NAME

Web::Query - Yet another scraping library like jQuery

SYNOPSIS

use Web::Query;

wq('http://google.com/search?q=foobar')
      ->find('h2')
      ->each(sub {
            my $i = shift;
            printf("%d) %s\n", $i+1, $_->text
      });

DESCRIPTION

Web::Query is a yet another scraping framework, have a jQuery like interaface.

Yes, I know ingy's pQuery. But it's just a alpha quality. It doesn't works. Web::Query built at top of the CPAN modules, HTML::TreeBuilder::XPath, LWP::UserAgent, and HTML::Selector::XPath.

So, this module uses HTML::Selector::XPath, then this module only supports CSS3 selector supported by HTML::Selector::XPath. Web::Query doesn't support jQuery's extended quries(yet?).

THIS LIBRARY IS UNDER DEVELOPMENT. ANY API MAY CHANGE WITHOUT NOTICE.

FUNCTIONS

wq($stuff)

This is a shortcut for Web::Query->new($stuff). This function is exported by default.

METHODS

my $q = Web::Query->new($stuff)

Create new instance of Web::Query. You can make the instance from URL(http, https, file scheme), HTML in string, URL in string, URI object, and instance of HTML::Element.

my $q = Web::Query->new_from_element($element: HTML::Element)

Create new instance of Web::Query from instance of HTML::Element.

my $q = Web::Query->new_from_html($html: Str)

Create new instance of Web::Query from html.

my $q = Web::Query->new_from_url($url: Str)

Create new instance of Web::Query from url.

my $q = Web::Query->new_from_file($file_name: Str)

Create new instance of Web::Query from file name.

my @html = $q->html();

my $html = $q->html();

$q->html('<p>foo</p>');

Get/set the innerHTML.

my @text = $q->text();

my $text = $q->text();

$q->text('text');

Get/Set the inner text.

my $attr = $q->attr($name);

$q->attr($name, $val);

Get/Set the attribute value in element.

$q = $q->find($selector)

This method find nodes by $selector from $q. $selector is a CSS3 selector.

$q->each(sub { my ($i, $elem) = @_; ... })

Visit each nodes. $i is a counter value, 0 origin. $elem is iteration item. $_ is localized by $elem.

$q->map(sub { my ($i, $elem) = @_; ... })

Creates a new array with the results of calling a provided function on every element.

$q->filter(sub { my ($i, $elem) = @_; ... })

Reduce the elements to those that pass the function's test.

$q->end()

Back to the before context like jQuery.

my $size = $q->size() : Int

Return the number of DOM elements matched by the Web::Query object.

my $parent = $q->parent() : Web::Query

Return the parent node from $q.

my $first = $q->first()

Return the first matching element.

my $last = $q->last()

Return the last matching element.

HOW DO I CUSTOMIZE USER AGENT?

You can specify your own instance of LWP::UserAgent.

$Web::Query::UserAgent = LWP::UserAgent->new( agent => 'Mozilla/5.0' );

AUTHOR

Tokuhiro Matsuno <tokuhirom AAJKLFJEF@ GMAIL COM>

SEE ALSO

pQuery

LICENSE

Copyright (C) Tokuhiro Matsuno

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.