function HtmlExtension::translateLang

Throws

ExpressionErrorException

1 call to HtmlExtension::translateLang()

HtmlExtension::getFunctionTranslators in vendor/symfony/css-selector/XPath/Extension/HtmlExtension.php

Returns function translators.

File

vendor/symfony/css-selector/XPath/Extension/HtmlExtension.php, line 136

Class

HtmlExtension

XPath expression translator HTML extension.

Namespace

Symfony\Component\CssSelector\XPath\Extension

Code

public function translateLang(XPathExpr $xpath, FunctionNode $function) : XPathExpr {
    $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()) . '-')));
}