bin/ksh/c_test.h

   1 /*      $NetBSD: c_test.h,v 1.3 2004/07/07 19:20:09 mycroft Exp $       */
   2
   3 /* Various types of operations.  Keeping things grouped nicely
   4  * (unary,binary) makes switch() statements more efficient.
   5  */
   6 enum Test_op {
   7         TO_NONOP = 0,   /* non-operator */
   8         /* unary operators */
   9         TO_STNZE, TO_STZER, TO_OPTION,
  10         TO_FILAXST,
  11         TO_FILEXST,
  12         TO_FILREG, TO_FILBDEV, TO_FILCDEV, TO_FILSYM, TO_FILFIFO, TO_FILSOCK,
  13         TO_FILCDF, TO_FILID, TO_FILGID, TO_FILSETG, TO_FILSTCK, TO_FILUID,
  14         TO_FILRD, TO_FILGZ, TO_FILTT, TO_FILSETU, TO_FILWR, TO_FILEX,
  15         /* binary operators */
  16         TO_STEQL, TO_STNEQ, TO_STLT, TO_STGT, TO_INTEQ, TO_INTNE, TO_INTGT,
  17         TO_INTGE, TO_INTLT, TO_INTLE, TO_FILEQ, TO_FILNT, TO_FILOT
  18 };
  19 typedef enum Test_op Test_op;
  20
  21 /* Used by Test_env.isa() (order important - used to index *_tokens[] arrays) */
  22 enum Test_meta {
  23         TM_OR,          /* -o or || */
  24         TM_AND,         /* -a or && */
  25         TM_NOT,         /* ! */
  26         TM_OPAREN,      /* ( */
  27         TM_CPAREN,      /* ) */
  28         TM_UNOP,        /* unary operator */
  29         TM_BINOP,       /* binary operator */
  30         TM_END          /* end of input */
  31 };
  32 typedef enum Test_meta Test_meta;
  33
  34 #define TEF_ERROR       BIT(0)          /* set if we've hit an error */
  35 #define TEF_DBRACKET    BIT(1)          /* set if [[ .. ]] test */
  36
  37 typedef struct test_env Test_env;
  38 struct test_env {
  39         int     flags;          /* TEF_* */
  40         union {
  41                 char    **wp;           /* used by ptest_* */
  42                 XPtrV   *av;            /* used by dbtestp_* */
  43         } pos;
  44         char **wp_end;                  /* used by ptest_* */
  45         int     (*isa) ARGS((Test_env *te, Test_meta meta));
  46         const char *(*getopnd) ARGS((Test_env *te, Test_op op, int do_eval));
  47         int     (*eval) ARGS((Test_env *te, Test_op op, const char *opnd1,
  48                                  const char *opnd2, int do_eval));
  49         void    (*error) ARGS((Test_env *te, int offset, const char *msg));
  50 };
  51
  52 Test_op test_isop ARGS((Test_env *te, Test_meta meta, const char *s));
  53 int     test_eval ARGS((Test_env *te, Test_op op, const char *opnd1,
  54                         const char *opnd2, int do_eval));
  55 int     test_parse ARGS((Test_env *te));