original_string: public function advance($t, $n) {
          for ($i = 0; $i < $n; $i++) {
              $t = $this->next($t);
          }
          return $t;
      }
code: public function advance($t, $n) {
          for ($i = 0; $i < $n; $i++) {
              $t = $this->next($t);
          }
          return $t;
      }
code_tokens: public function advance ( $ t , $ n ) { for ( $ i = 0 ; $ i < $ n ; $ i ++ ) { $ t = $ this -> next ( $ t ) ; } return $ t ; }
docstring: Iterated hole advancement.
  @param $t Element to fill hole with
  @param $i How many forward to advance hole
  @return Original contents of new hole, i away
docstring_tokens: Iterated hole advancement .