54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/* Various types of operations. Keeping things grouped nicely
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* (unary,binary) makes switch() statements more efficeint.
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*/
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enum Test_op {
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TO_NONOP = 0, /* non-operator */
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/* unary operators */
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TO_STNZE, TO_STZER, TO_OPTION,
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TO_FILAXST,
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TO_FILEXST,
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TO_FILREG, TO_FILBDEV, TO_FILCDEV, TO_FILSYM, TO_FILFIFO, TO_FILSOCK,
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TO_FILCDF, TO_FILID, TO_FILGID, TO_FILSETG, TO_FILSTCK, TO_FILUID,
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TO_FILRD, TO_FILGZ, TO_FILTT, TO_FILSETU, TO_FILWR, TO_FILEX,
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/* binary operators */
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TO_STEQL, TO_STNEQ, TO_STLT, TO_STGT, TO_INTEQ, TO_INTNE, TO_INTGT,
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TO_INTGE, TO_INTLT, TO_INTLE, TO_FILEQ, TO_FILNT, TO_FILOT
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};
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typedef enum Test_op Test_op;
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/* Used by Test_env.isa() (order important - used to index *_tokens[] arrays) */
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enum Test_meta {
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TM_OR, /* -o or || */
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TM_AND, /* -a or && */
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TM_NOT, /* ! */
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TM_OPAREN, /* ( */
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TM_CPAREN, /* ) */
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TM_UNOP, /* unary operator */
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TM_BINOP, /* binary operator */
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TM_END /* end of input */
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};
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typedef enum Test_meta Test_meta;
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#define TEF_ERROR BIT(0) /* set if we've hit an error */
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#define TEF_DBRACKET BIT(1) /* set if [[ .. ]] test */
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typedef struct test_env Test_env;
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struct test_env {
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int flags; /* TEF_* */
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union {
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char **wp; /* used by ptest_* */
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XPtrV *av; /* used by dbtestp_* */
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} pos;
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char **wp_end; /* used by ptest_* */
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int (*isa) ARGS((Test_env *te, Test_meta meta));
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const char *(*getopnd) ARGS((Test_env *te, Test_op op, int do_eval));
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int (*eval) ARGS((Test_env *te, Test_op op, const char *opnd1,
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const char *opnd2, int do_eval));
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void (*error) ARGS((Test_env *te, int offset, const char *msg));
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};
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Test_op test_isop ARGS((Test_env *te, Test_meta meta, const char *s));
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int test_eval ARGS((Test_env *te, Test_op op, const char *opnd1,
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const char *opnd2, int do_eval));
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int test_parse ARGS((Test_env *te));
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