private function getLanguageConfiguration(\DOMXPath $xpath, $language, array $defaultConfig)
{
$languageCharFilters = $this->parseFilters($xpath, self::CHAR_FILTER_TYPE_ROOT_NODE, self::CHAR_FILTER_TYPE_NODE, $language);
$charFilters = array_merge($defaultConfig[self::CHAR_FILTER_TYPE_NODE], $languageCharFilters);
$languageFilters = $this->parseFilters($xpath, self::FILTER_TYPE_ROOT_NODE, self::FILTER_TYPE_NODE, $language);
$filters = array_merge($defaultConfig[self::FILTER_TYPE_NODE], $languageFilters);
$analyzers = $this->parseAnalyzers($xpath, array_keys($charFilters), array_keys($filters), $language);
$defaultConfiguration = [self::CHAR_FILTER_TYPE_NODE => $charFilters, self::FILTER_TYPE_NODE => $filters, self::ANALYZER_TYPE_NODE => $analyzers];
return $defaultConfiguration;
}