/**
* @param XPathExpr $xpath
* @param FunctionNode $function
*
* @return XPathExpr
*
* @throws ExpressionErrorException
*/
public function translateLang(XPathExpr $xpath, FunctionNode $function)
{
$arguments = $function->getArguments();
foreach ($arguments as $token) {
if (!($token->isString() || $token->isIdentifier())) {
throw new ExpressionErrorException('Expected a single string or identifier for :lang(), got ' . implode(', ', $arguments));
}
}
return $xpath->addCondition(sprintf('ancestor-or-self::*[@lang][1][starts-with(concat(' . "translate(@%s, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), '-')" . ', %s)]', 'lang', Translator::getXpathLiteral(strtolower($arguments[0]->getValue()) . '-')));
}
/**
* @param XPathExpr $xpath
* @param FunctionNode $function
*
* @return XPathExpr
*
* @throws ExpressionErrorException
*/
public function translateLang(XPathExpr $xpath, FunctionNode $function)
{
$arguments = $function->getArguments();
foreach ($arguments as $token) {
if (!($token->isString() || $token->isIdentifier())) {
throw new ExpressionErrorException('Expected a single string or identifier for :lang(), got ' . implode(', ', $arguments));
}
}
return $xpath->addCondition(sprintf('lang(%s)', Translator::getXpathLiteral($arguments[0]->getValue())));
}
