original_string: static function get_as_strings($lines) {
          $strings=array();
          foreach($lines as $key=>$value) {
              $strings[$key]=$value->get_as_string();        
          }
          return $strings;
      }
code: static function get_as_strings($lines) {
          $strings=array();
          foreach($lines as $key=>$value) {
              $strings[$key]=$value->get_as_string();        
          }
          return $strings;
      }
code_tokens: static function get_as_strings ( $ lines ) { $ strings = array ( ) ; foreach ( $ lines as $ key => $ value ) { $ strings [ $ key ] = $ value -> get_as_string ( ) ; } return $ strings ; }
docstring: Static function converts lines to strings.
  @param array $lines Array of ouwiki_line
  @return array Array of strings
docstring_tokens: Static function converts lines to strings .