/**
* Normalize URLs
*
* @link http://dev.w3.org/html5/spec/links.html#attr-hyperlink-href
*
* @param DOMElement $template <xsl:template/> node
* @return void
*/
public function normalize(DOMElement $template)
{
foreach (TemplateHelper::getURLNodes($template->ownerDocument) as $node) {
if ($node instanceof DOMAttr) {
$this->normalizeAttribute($node);
} elseif ($node instanceof DOMElement) {
$this->normalizeElement($node);
}
}
}
/**
* Parse given template and store the references it contains
*
* @param string $template
* @return void
*/
protected function parseTemplate($template)
{
$this->references = ['anywhere' => [], 'asUrl' => [], 'inText' => []];
preg_match_all($this->referencesRegexp, $template, $matches);
foreach ($matches[0] as $match) {
$key = trim($match, '\\${}');
$this->references['anywhere'][$key] = $key;
}
$dom = TemplateHelper::loadTemplate($template);
$xpath = new DOMXPath($dom);
foreach ($xpath->query('//text()') as $node) {
preg_match_all($this->referencesRegexp, $node->textContent, $matches);
foreach ($matches[0] as $match) {
$key = trim($match, '\\${}');
$this->references['inText'][$key] = $key;
}
}
foreach (TemplateHelper::getURLNodes($dom) as $node) {
// We only bother with literal attributes that start with a capture
if ($node instanceof DOMAttr && preg_match('(^(?:[$\\\\]\\d+|\\$\\{\\d+\\}))', trim($node->value), $m)) {
$key = trim($m[0], '\\${}');
$this->references['asUrl'][$key] = $key;
}
}
$this->removeUnknownReferences();
}
protected function parseTemplate($template)
{
$this->references = array('anywhere' => array(), 'asUrl' => array(), 'inText' => array());
\preg_match_all($this->referencesRegexp, $template, $matches);
foreach ($matches[0] as $match) {
$key = \trim($match, '\\${}');
$this->references['anywhere'][$key] = $key;
}
$dom = TemplateHelper::loadTemplate($template);
$xpath = new DOMXPath($dom);
foreach ($xpath->query('//text()') as $node) {
\preg_match_all($this->referencesRegexp, $node->textContent, $matches);
foreach ($matches[0] as $match) {
$key = \trim($match, '\\${}');
$this->references['inText'][$key] = $key;
}
}
foreach (TemplateHelper::getURLNodes($dom) as $node) {
if ($node instanceof DOMAttr && \preg_match('(^(?:[$\\\\]\\d+|\\$\\{\\d+\\}))', \trim($node->value), $m)) {
$key = \trim($m[0], '\\${}');
$this->references['asUrl'][$key] = $key;
}
}
$this->removeUnknownReferences();
}
/**
* {@inheritdoc}
*/
protected function getNodes(DOMElement $template)
{
return TemplateHelper::getURLNodes($template->ownerDocument);
}
/**
* Return all the nodes in this template whose value is an URL
*
* @return array
*/
public function getURLNodes()
{
return TemplateHelper::getURLNodes($this->asDOM());
}