Révision f066bdb5
Ajouté par Assos Assos il y a plus de 9 ans
| drupal7/sites/all/modules/feeds_xpathparser/FeedsXPathParserDOMXPath.inc | ||
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* Wraps DOMXPath providing enhanced debugging and special namespace handling. |
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*/ |
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class FeedsXPathParserDOMXPath extends DOMXPath {
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/** |
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* The DOMDocument to parse. |
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* |
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* @var DOMDocument |
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*/ |
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protected $doc; |
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/** |
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* Configuration array. |
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* |
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* @var array |
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*/ |
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protected $config = array(); |
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/** |
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* Modified query cache. |
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* |
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* @var arrray |
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*/ |
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protected $modifiedQueries = array(); |
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/** |
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* Constructs a FeedsXPathParserDOMXPath. |
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* The namespaces in the document. |
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* |
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* @var arrray |
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*/ |
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protected $namepsaces = array(); |
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/** |
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* The most recent error from parsing. |
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* |
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* @var stdClass |
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*/ |
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protected $error; |
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/** |
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* Constructs a FeedsXPathParserDOMXPath object. |
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* |
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* @param DOMDocument $doc |
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* The DOMDocument that we're operating on. |
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*/ |
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public function __construct(DOMDocument $doc) {
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$this->namespaces = array(); |
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$simple = simplexml_import_dom($doc); |
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// An empty DOMDocument will make $simple NULL. |
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if ($simple !== NULL) {
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$this->namespaces = $simple->getNamespaces(TRUE); |
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} |
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$this->doc = $doc; |
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parent::__construct($doc); |
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} |
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| ... | ... | |
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* The result of an XPath query. Either a scalar or a DOMNodeList. |
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* @param string $source |
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* The source key that produced this query. |
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* |
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* @todo Use theme_item_list(). |
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*/ |
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protected function debug($data, $source) {
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$output = "$source : <ul>"; |
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if ($data instanceof DOMNodeList) {
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foreach ($data as $node) {
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$output .= '<li>' . check_plain($this->doc->saveXML($node)) . '</li>'; |
| ... | ... | |
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$output .= '<li>' . check_plain($data) . '</li>'; |
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} |
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$output .= '</ul>'; |
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drupal_set_message($output); |
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} |
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*/ |
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public function namespacedQuery($query, $context, $source) {
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$this->addDefaultNamespace($query); |
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$results = $this->executeQuery($query, $context); |
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if (in_array($source, $this->config['debug'])) {
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$this->debug($results, $source); |
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} |
| ... | ... | |
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} |
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// DOMXPath::evaluate() and DOMXPath::query() will return FALSE on error or |
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// if the value is false. We check error result and return NULL in case
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// if the value is FALSE. We check error result and return NULL in case
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// of error. |
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if (is_object($this->error) && $this->error->level == LIBXML_ERR_ERROR) {
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return NULL; |
| ... | ... | |
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/** |
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* Performs a XPath query. |
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* |
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* Here we set libxml_use_internal_errors to TRUE because depending on the |
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* Here we set libxml_use_internal_errors() to TRUE because depending on the
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* libxml version, $xml->xpath() might return FALSE or an empty array() when |
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* a query doesn't match. |
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* |
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* @param string $query |
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* The XPath query string. |
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* @param DOMNode $context |
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* (Optional) A context object. Defaults to NULL.
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* (optional) A context object. Defaults to NULL.
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* |
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* @return mixed |
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* The result of the XPath query. |
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*/ |
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protected function executeQuery($query, $context = NULL) {
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protected function executeQuery($query, DOMNode $context = NULL) {
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$use_errors = libxml_use_internal_errors(TRUE); |
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// Perfom XPath query. |
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