16     private $rewriter;  variable in action_plugin_qna
56         $this->rewriter = new qna_instruction_rewriter();
85                         $this->rewriter->insertBlockCall($i, 'close_block', 2);
105             $this->rewriter->appendBlockCall('close_block', 2);
108         $this->rewriter->apply($event->data->calls);
118                     $this->rewriter->insertBlockCall($index, 'close_block', 2);
121                 $this->rewriter->insertBlockCall($index, 'open_block');
122                 $this->rewriter->setQuestionLevel($index, $this->headerLevel + 1);
129                         $this->rewriter->delete($index);
134                         $this->rewriter->insertBlockCall($index, 'close_block');
143                         $this->rewriter->delete($index);
148                         $this->rewriter->insertBlockCall($index, 'close_block');
170             $this->rewriter->insertHeaderCall($this->headerIndex, $data);
171             $this->rewriter->insertHeaderCall($this->headerIndex + 1, 'close');
174         $this->rewriter->delete($index);