typedef union 
{
	command_exprval		expr;
	command_symbol *sym;
} YYSTYPE;
#define	NUM	257
#define	STRING	258
#define	IDSTRING	259
#define	ERR	260
#define	LSHIFT	261
#define	RSHIFT	262
#define	COMPLE	263
#define	COMPGE	264
#define	COMPEQ	265
#define	COMPNE	266
#define	COMPAND	267
#define	COMPOR	268
#define	COMPXOR	269
#define	PRINT	270
#define	NEG	271


extern YYSTYPE yylval;