gnu/abc-shell/c_test.h

   1 /* Various types of operations.  Keeping things grouped nicely
   2  * (unary,binary) makes switch() statements more efficient.
   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)(Test_env *, Test_meta);
  44         const char *(*getopnd)(Test_env *, Test_op, int);
  45         int     (*eval)(Test_env *, Test_op, const char *, const char *, int);
  46         void    (*error)(Test_env *, int, const char *);
  47 };
  48
  49 Test_op test_isop(Test_env *, Test_meta, const char *);
  50 int     test_eval(Test_env *, Test_op, const char *, const char *, int);
  51 int     test_parse(Test_env *);