19     private $_key = 0;  variable in renderer_plugin_edittable_inverse
599         $this->_key                  = 1;
600         while(isset($this->_rowspans[$this->_key])) {
601             --$this->_rowspans[$this->_key];
602             if($this->_rowspans[$this->_key] === 1) {
603                 unset($this->_rowspans[$this->_key]);
605             ++$this->_key;
619         $this->_table[$this->_row][$this->_key] = compact('tag', 'colspan', 'align', 'rowspan');
621             $this->_rowspans[$this->_key] = $rowspan;
633         $this->_table[$this->_row][$this->_key]['text'] = trim(substr($this->doc, $this->_pos));
635         $this->_key += $this->_table[$this->_row][$this->_key]['colspan'];
636         while(isset($this->_rowspans[$this->_key]) && !$this->_ownspan) {
637             --$this->_rowspans[$this->_key];
638             if($this->_rowspans[$this->_key] === 1) {
639                 unset($this->_rowspans[$this->_key]);
641             ++$this->_key;