/**
* Extarct values according process
*
* @param Diggin_Scraper_Wrapper_SimpleXMLElement $values
* @param Diggin_Scraper_Process $process
* @return array|false
*/
public function extract($values, $process)
{
$results = (array) $values->xpath(self::_xpathOrCss2Xpath($process->getExpression()));
// count($results) === 0 is not found by xpath-node
// $results[0] === false is not found by attributes
if (count($results) === 0 or $results[0] === false) {
return false;
}
return $results;
}
public function __construct(array $config = array())
{
parent::__construct($config);
$process = new Diggin_Scraper_Process();
$process->setExpression($config['expression']);
$process->setName('kumo');
$process->setArrayFlag(isset($config['arrayflag']) ? (bool) $config['arrayflag'] : true);
$process->setType(isset($config['type']) ? $config['type'] : 'TEXT');
// use only first filter
if (isset($config['filters'])) {
if (($match = $config['filters']['matchpattern']) && ($replace = $config['filters']['replacement'])) {
require_once 'Zend/Filter/PregReplace.php';
$pregreplace = new Zend_Filter_PregReplace();
$pregreplace->setMatchPattern($match);
$pregreplace->setReplacement($replace);
$process->setFilters(array($pregreplace));
}
}
$this->scraper = new Diggin_Scraper();
$this->scraper->process($process);
}
