protected function computeMetas()
{
$xyl = new Xyl(new File\Read($this->_file->getPathname()), new Http\Response(), new Xyl\Interpreter\Html(), $this->_router);
$ownerDocument = $xyl->readDOM()->ownerDocument;
$xpath = new DOMXpath($ownerDocument);
$query = $xpath->query('/processing-instruction(\'xyl-meta\')');
for ($i = 0, $m = $query->length; $i < $m; ++$i) {
$item = $query->item($i);
$meta = new Xml\Attribute($item->data);
$name = $meta->readAttribute('name');
$value = $meta->readAttribute('value');
if (false === in_array($name, static::LIST_OF_METAS)) {
continue;
}
$this->_metas[$name] = $value;
$item->parentNode->removeChild($item);
}
$buffer = new Stringbuffer\Read();
$buffer->initializeWith($xyl->readXML());
$this->_streamName = $buffer->getStreamName();
return;
}
/**
* Compute <?xyl-stylesheet?> processing-instruction.
*
* @param \DOMDocument $ownerDocument Document that ownes PIs.
* @return void
*/
protected function computeStylesheet(\DOMDocument $ownerDocument)
{
$xpath = new \DOMXPath($ownerDocument);
$xyl_style = $xpath->query('/processing-instruction(\'xyl-stylesheet\')');
unset($xpath);
if (0 === $xyl_style->length) {
return;
}
for ($i = 0, $m = $xyl_style->length; $i < $m; ++$i) {
$item = $xyl_style->item($i);
$styleParsed = new Xml\Attribute($item->data);
if (true === $styleParsed->attributeExists('href')) {
$href = $this->computeLink($styleParsed->readAttribute('href'), true);
if (true === $styleParsed->attributeExists('position')) {
$position = max(0, (int) static::evaluateXPath(str_replace('last()', ($k = key($this->_stylesheets)) ? $k + 1 : 0, $styleParsed->readAttribute('position'))));
if (isset($this->_stylesheets[$position])) {
$handle = [];
foreach ($this->_stylesheets as $i => $foo) {
if ($position > $i) {
$handle[$i] = $foo;
unset($this->_stylesheets[$i]);
} else {
break;
}
}
$handle[$position] = $href;
foreach ($this->_stylesheets as $i => $foo) {
if ($i === $position) {
$handle[$position = $i + 1] = $foo;
unset($this->_stylesheets[$i]);
} else {
break;
}
}
$this->_stylesheets = $handle + $this->_stylesheets;
} else {
$this->_stylesheets[$position] = $href;
ksort($this->_stylesheets, SORT_NUMERIC);
}
} else {
$this->_stylesheets[] = $href;
}
}
$ownerDocument->removeChild($item);
unset($styleParsed);
}
return;
}
/**
* Compute <?xyl-link?> processing-instruction.
*
* @param \DOMDocument $ownerDocument Document that ownes PIs.
* @return void
*/
protected function computeDocumentLinks(\DOMDocument $ownerDocument)
{
$xpath = new \DOMXPath($ownerDocument);
$xyl_link = $xpath->query('/processing-instruction(\'xyl-link\')');
unset($xpath);
if (0 === $xyl_link->length) {
return;
}
for ($i = 0, $m = $xyl_link->length; $i < $m; ++$i) {
$item = $xyl_link->item($i);
$documentLink = new Xml\Attribute($item->data);
if (true === $documentLink->attributeExists('href')) {
$documentLink->writeAttribute('href', $this->computeLink($documentLink->readAttribute('href'), true));
}
$this->_documentLinks[] = $documentLink;
$ownerDocument->removeChild($item);
}
return;
}