original_string: public function getLanguageURLPrefix($lang = null)
      {
          // if active lang is not passed in, use current active
          if (!$lang) {
              $lang = $this->getLanguage();
          }
  
          return $this->isIncludeDefaultLanguage($lang) ? '/' . $lang : '';
      }
code: public function getLanguageURLPrefix($lang = null)
      {
          // if active lang is not passed in, use current active
          if (!$lang) {
              $lang = $this->getLanguage();
          }
  
          return $this->isIncludeDefaultLanguage($lang) ? '/' . $lang : '';
      }
code_tokens: public function getLanguageURLPrefix ( $ lang = null ) { // if active lang is not passed in, use current active if ( ! $ lang ) { $ lang = $ this -> getLanguage ( ) ; } return $ this -> isIncludeDefaultLanguage ( $ lang ) ? '/' . $ lang : '' ; }
docstring: Get's a URL prefix based on configuration
  
  @param string|null $lang
  @return string
docstring_tokens: Get s a URL prefix based on configuration