109     protected $_tokens              = [];  variable in Hoa\\Compiler\\Ll1
374         $_tokens       = array_flip($this->_tokens[$c]);
495                     $_tokens      = array_flip($this->_tokens[$c]);
518             if (isset($_tokens[$nextChar])) {
520                 $nextToken  = $_tokens[$token];
532                 foreach ($_tokens as $token => $e) {
595                     $_tokens       = array_flip($this->_tokens[$c]);
727         $old           = $this->_tokens;
728         $this->_tokens = $tokens;
840         return $this->_tokens;
989                         $label = str_replace('\\', '\\\\', $this->_tokens[$e][$j]);