#define IDENTIFIER 257
#define STRING 258
#define CONTINUOUS 259
#define AND 260
#define ONLYIF 261
#define NEVER 262
#define CONTEXTS 263
#define STRATIFY 264
#define UTILITIES 265
#define ASFOR 266
#define PRIOR 267
typedef union {
	Context  *tk_context;
	int	 tk_int;
	char 	 *tk_string;
	} YYSTYPE;
extern YYSTYPE yylval;
