// identifier
#define ID 101
// type names
#define T_INTEGER 201
#define T_ADDRESS 202
#define T_BOOLEAN 203
#define T_CHARACTER 204
#define T_STRING 205
// constants (literals)
#define C_INTEGER 301
#define C_NULL 302
#define C_CHARACTER 303
#define C_STRING 304
#define C_TRUE 305
#define C_FALSE 306
// other keywords
#define WHILE 401
#define IF 402
#define THEN 403
#define ELSE 404
#define TYPE 405
#define FUNCTION 406
#define RETURN 407
#define EXTERNAL 408
#define AS 409
// punctuation - grouping
#define L_PAREN 501
#define R_PAREN 502
#define L_BRACKET 503
#define R_BRACKET 504
#define L_BRACE 505
#define R_BRACE 506
// punctuation - other
#define SEMI_COLON 507
#define COLON 508
#define COMMA 509
#define ARROW 510
// operators
#define ADD 601
#define SUB_OR_NEG 602
#define MUL 603
#define DIV 604
#define REM 605
#define LESS_THAN 606
#define EQUAL_TO 607
#define ASSIGN 608
#define NOT 609
#define AND 610
#define OR 611
#define DOT 612
#define RESERVE 613
#define RELEASE 614
// comments
#define COMMENT 700