original_string: public function isLanguageAvailable($languageCode)
      {
          return $languageCode !== false
          && Filesystem::isValidFilename($languageCode)
          && in_array($languageCode, $this->getAvailableLanguages());
      }
code: public function isLanguageAvailable($languageCode)
      {
          return $languageCode !== false
          && Filesystem::isValidFilename($languageCode)
          && in_array($languageCode, $this->getAvailableLanguages());
      }
code_tokens: public function isLanguageAvailable ( $ languageCode ) { return $ languageCode !== false && Filesystem :: isValidFilename ( $ languageCode ) && in_array ( $ languageCode , $ this -> getAvailableLanguages ( ) ) ; }
docstring: Returns true if specified language is available
  
  @param string $languageCode
  @return bool true if language available; false otherwise
docstring_tokens: Returns true if specified language is available