PHP Toolset_Tokenizer::UNARY_NEGATION示例

 public static function init()
 {
     static $isInited = false;
     if (!$isInited) {
         self::_buildMaps();
         self::$TOKEN_TYPE = self::$_TOKEN_TYPES;
         self::$_EMPTY_TOKEN = self::makeToken('', self::$_TOKEN_TYPES['EMPTY_TOKEN']);
         self::$_EMPTY_STRING = self::makeToken('', self::$_TOKEN_TYPES['STRING_LITERAL']);
         self::$EMPTY_TOKEN = self::$_EMPTY_TOKEN;
         self::$EMPTY_STRING = self::$_EMPTY_STRING;
         self::$UNARY_NEGATIVE = self::makeToken(self::$_UNARY_NEGATIVE, self::$_TOKEN_TYPES['UNARY_NEGATIVE']);
         self::$UNARY_NEGATION = self::makeToken(self::$_UNARY_NEGATION, self::$_TOKEN_TYPES['UNARY_NEGATION']);
         self::$ARG_TERMINAL = self::makeToken(self::$_ARG_TERMINAL, self::$_TOKEN_TYPES['ARG_TERMINAL']);
         $isInited = true;
     }
 }