/**
* Helper function to process the source text.
*
* @param string $source
* Job data array.
* @param array $key_array
* The source item data key.
*
* @return string
*/
protected function processForExport($source, array $key_array)
{
$tjiid = $key_array[0];
$key_string = \Drupal::service('tmgmt.data')->ensureStringKey($key_array);
// The reason why we use DOMDocument object here and not just XMLReader
// is the DOMDocument's ability to deal with broken HTML.
$dom = new \DOMDocument();
// We need to append the head with encoding so that special characters
// are read correctly.
$dom->loadHTML("<html><head><meta http-equiv='Content-type' content='text/html; charset=UTF-8' /></head><body>" . $source . '</body></html>');
$iterator = new \RecursiveIteratorIterator(new RecursiveDOMIterator($dom), \RecursiveIteratorIterator::SELF_FIRST);
$writer = new \XMLWriter();
$writer->openMemory();
$writer->startDocument('1.0', 'UTF-8');
$writer->startElement('wrapper');
$tray = array();
$non_pair_tags = array('br', 'img');
$xliff_validation = $this->job->getSetting('xliff_validation');
/** @var \DOMElement $node */
foreach ($iterator as $node) {
if (in_array($node->nodeName, array('html', 'body', 'head', 'meta'))) {
continue;
}
if ($node->nodeType === XML_ELEMENT_NODE) {
// Increment the elements count and compose element id.
if (!isset($xliff_validation[$key_string])) {
$xliff_validation[$key_string] = 0;
}
$xliff_validation[$key_string]++;
$id = 'tjiid' . $tjiid . '-' . $xliff_validation[$key_string];
$is_pair_tag = !in_array($node->nodeName, $non_pair_tags);
if ($is_pair_tag) {
$this->writeBPT($writer, $node, $id);
} elseif ($node->nodeName == 'img') {
$this->writeIMG($writer, $node, $id);
} elseif ($node->nodeName == 'br') {
$this->writeBR($writer, $node, $id);
}
// Add to tray new element info.
$tray[$id] = array('name' => $node->nodeName, 'id' => $id, 'value' => $node->nodeValue, 'built_text' => '', 'is_pair_tag' => $is_pair_tag);
} elseif ($node->nodeName == '#text') {
// Add the node value to the text output.
$writer->writeCdata($this->toEntities($node->nodeValue));
foreach ($tray as &$info) {
$info['built_text'] .= $node->nodeValue;
}
}
// Reverse so that pair tags are closed in the expected order.
$reversed_tray = array_reverse($tray);
foreach ($reversed_tray as $_info) {
// If the build_text equals to the node value and it is not a pair tag
// add the end pair tag markup.
if ($_info['value'] == $_info['built_text'] && $_info['is_pair_tag']) {
// Count also for the closing elements.
$xliff_validation[$key_string]++;
$this->writeEPT($writer, $_info['name'], $_info['id']);
// When the end pair tag has been written unset the element info
// from the tray.
unset($tray[$_info['id']]);
}
}
}
// Set the xliff_validation data and save the job.
$this->job->settings->xliff_validation = $xliff_validation;
$this->job->save();
$writer->endElement();
// Load the output with XMLReader so that we can easily get the inner xml.
$reader = new \XMLReader();
$reader->XML($writer->outputMemory());
$reader->read();
return $reader->readInnerXML();
}
