/**
* Sets the XPath expression to be only of type.
*
* @param XPath\Expression $xpath The XPath expression
* @return XPath\Expression The modified expression
* @throws ParseException Because *:only-of-type is not implemented
*/
protected function xpath_only_of_type($xpath)
{
if ($xpath->getElement() == '*') {
//$xpath->addStarPrefix();
//$xpath->addCondition("count(../child::*[name(current()) = name(*)]) = 1");
throw new UnsupportedSelectorException('*:only-of-type is not implemented');
} else {
$xpath->addCondition('last() = 1');
}
return $xpath;
}
/**
* undocumented function
*
* @param XPath\Expression $xpath
* @param mixed $expr
* @return XPath\Expression
*/
protected function xpath_nth_of_type(XPath\Expression $xpath, $expr)
{
if ($xpath->getElement() == '*') {
throw new ParseException('*:nth-of-type() is not implemented');
}
return $this->xpath_nth_child($xpath, $expr, false, false);
}