<?php
namespace Spider\Lib\Doc;
include(DEVER_APP_PATH . 'third/phpQuery.php');
use Dever;
use Spider\Lib\Doc as Doc;
use phpQuery;

class Dom extends Core
{
	public static function init($html)
    {
        return phpQuery::newDocumentHTML($html);
    }

	public static function find($dom, $rule)
    {
        $rule = str_replace(array('$', ').'), array('$dom->find', ')->'), $rule);
		$cmd = '$dom = ' . $rule . ';';
		eval($cmd);
		return $dom;
    }

	public static function rule($doc, $dom, $col, $rule)
    {
    	$dom = pq($dom);
        $result = $dom->html();
		$rule = explode("\n", $rule);
		if (isset($rule[0]) && $rule[0]) {
			if (isset($col[$rule[0]])) {
				$url = $doc->getUrl($dom, $col, $col[$rule[0]]);
				$doc = Doc::getInstance($url, '')->get();
				array_shift($rule);
			}
			$result = self::find($doc, $rule[0]);
		}
		if (isset($rule[1]) && $rule[1]) $result = parent::match($rule[1], $result);
		return $result;
    }
}