anchor.diff:      txt = _textProcessingService.prefixLines(txt, prefix);
       txt = _textProcessingService.postfixLines(txt, postfix);
       note.text = txt;
  +    note.save();
     }
   }
positive.code:   String prefix;
    String postfix;
  
    int insertPos = -1;
  
    PrePostDialogComponent(this._textProcessingService,
        this._textareaDomService);
  
  
negative.code:     showDialog = false;
      showDialogChange.emit(showDialog);
      _textareaDomService.setFocus();
    }
  
    performPrePost() {
  