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c_test.h revision 1.1 
      1 /* Various types of operations.  Keeping things grouped nicely
      2  * (unary,binary) makes switch() statements more efficeint.
      3  */
      4 enum Test_op {
      5 	TO_NONOP = 0,	/* non-operator */
      6 	/* unary operators */
      7 	TO_STNZE, TO_STZER, TO_OPTION,
      8 	TO_FILAXST,
      9 	TO_FILEXST,
     10 	TO_FILREG, TO_FILBDEV, TO_FILCDEV, TO_FILSYM, TO_FILFIFO, TO_FILSOCK,
     11 	TO_FILCDF, TO_FILID, TO_FILGID, TO_FILSETG, TO_FILSTCK, TO_FILUID,
     12 	TO_FILRD, TO_FILGZ, TO_FILTT, TO_FILSETU, TO_FILWR, TO_FILEX,
     13 	/* binary operators */
     14 	TO_STEQL, TO_STNEQ, TO_STLT, TO_STGT, TO_INTEQ, TO_INTNE, TO_INTGT,
     15 	TO_INTGE, TO_INTLT, TO_INTLE, TO_FILEQ, TO_FILNT, TO_FILOT
     16 };
     17 typedef enum Test_op Test_op;
     18 
     19 /* Used by Test_env.isa() (order important - used to index *_tokens[] arrays) */
     20 enum Test_meta {
     21 	TM_OR,		/* -o or || */
     22 	TM_AND,		/* -a or && */
     23 	TM_NOT,		/* ! */
     24 	TM_OPAREN,	/* ( */
     25 	TM_CPAREN,	/* ) */
     26 	TM_UNOP,	/* unary operator */
     27 	TM_BINOP,	/* binary operator */
     28 	TM_END		/* end of input */
     29 };
     30 typedef enum Test_meta Test_meta;
     31 
     32 #define TEF_ERROR	BIT(0)		/* set if we've hit an error */
     33 #define TEF_DBRACKET	BIT(1)		/* set if [[ .. ]] test */
     34 
     35 typedef struct test_env Test_env;
     36 struct test_env {
     37 	int	flags;		/* TEF_* */
     38 	union {
     39 		char	**wp;		/* used by ptest_* */
     40 		XPtrV	*av;		/* used by dbtestp_* */
     41 	} pos;
     42 	char **wp_end;			/* used by ptest_* */
     43 	int	(*isa) ARGS((Test_env *te, Test_meta meta));
     44 	const char *(*getopnd) ARGS((Test_env *te, Test_op op, int do_eval));
     45 	int	(*eval) ARGS((Test_env *te, Test_op op, const char *opnd1,
     46 				 const char *opnd2, int do_eval));
     47 	void	(*error) ARGS((Test_env *te, int offset, const char *msg));
     48 };
     49 
     50 Test_op	test_isop ARGS((Test_env *te, Test_meta meta, const char *s));
     51 int     test_eval ARGS((Test_env *te, Test_op op, const char *opnd1,
     52 			const char *opnd2, int do_eval));
     53 int	test_parse ARGS((Test_env *te));
     54