grammar.tab.c

一个编译器修改的例子

      -1,    -1,    24,    25,     7,    -1,    -1,    29,    -1,    -1,
      32,    -1,    34,    35,    36,    37,    38,    -1,    -1,    -1,
      -1,    -1,    -1,    -1,    -1,    -1,    48,    49,    10,    -1,
      -1,    -1,    54,    55,    56,    -1,    39,    40,    41,    42,
      43,    44,    45,    46,    47,    48,    49,    50,    51,    -1,
      -1,    -1,    -1,    56,    57,    -1,    -1,    39,    40,    41,
      42,    43,    44,    45,    46,    47,    48,    49,    50,    51,
      13,    -1,    -1,    -1,    56,    57,    19,    20,    -1,    -1,
      -1,    -1,    -1,    -1,    -1,    -1,    29,    -1,    -1,    -1,
      -1,    34,    35,    36,    37,    38,    -1,    -1,    -1,    -1,
      -1,    13,    -1,    -1,    -1,    48,    49,    19,    20,    -1,
      -1,    54,    55,    56,    -1,    58,    -1,    29,    -1,    -1,
      -1,    -1,    34,    35,    36,    37,    38,    -1,    -1,    -1,
      -1,    -1,    -1,    27,    -1,    -1,    48,    49,    -1,    -1,
      -1,    -1,    54,    55,    56,    39,    40,    41,    42,    43,
      44,    45,    46,    47,    48,    49,    50,    51,    28,    -1,
      -1,    -1,    56,    57,    -1,    -1,    -1,    -1,    -1,    39,
      40,    41,    42,    43,    44,    45,    46,    47,    48,    49,
      50,    51,    -1,    -1,    -1,    -1,    56,    57,    39,    40,
      41,    42,    43,    44,    45,    46,    47,    48,    49,    50,
      51,    -1,    -1,    -1,    -1,    56,    57,    -1,    -1,    -1,
      -1,    62,    39,    40,    41,    42,    43,    44,    45,    46,
      47,    48,    49,    50,    51,    -1,    -1,    -1,    -1,    56,
      57,    -1,    -1,    -1,    -1,    62,    39,    40,    41,    42,
      43,    44,    45,    46,    47,    48,    49,    50,    51,    -1,
      -1,    -1,    -1,    56,    57,    -1,    -1,    60,    39,    40,
      41,    42,    43,    44,    45,    46,    47,    48,    49,    50,
      51,    -1,    -1,    -1,    -1,    56,    57,    58,    39,    40,
      41,    42,    43,    44,    45,    46,    47,    48,    49,    50,
      51,    -1,    -1,    -1,    -1,    56,    57,    58,    39,    40,
      41,    42,    43,    44,    45,    46,    47,    48,    49,    50,
      51,    -1,    -1,    -1,    -1,    56,    57,    58,    39,    40,
      41,    42,    43,    44,    45,    46,    47,    48,    49,    50,
      51,    -1,    -1,    -1,    -1,    56,    57,    58,    39,    40,
      41,    42,    43,    44,    45,    46,    47,    48,    49,    50,
      51,    -1,    -1,    -1,    -1,    56,    57,    39,    -1,    41,
      42,    43,    44,    45,    46,    47,    48,    49,    50,    51,
      -1,    39,    -1,    -1,    56,    57,    44,    45,    46,    47,
      48,    49,    50,    51,    -1,    -1,    -1,    -1,    56,    57
};

/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
   symbol of state STATE-NUM.  */
static const yytype_uint8 yystos[] =
{
       0,    64,    65,     0,    15,    22,    31,    33,    66,    67,
      68,    70,    71,    72,    73,    79,    35,    74,    74,    35,
      80,    81,    82,    35,    69,    67,    18,    58,    75,    59,
      81,    58,    59,    61,    18,     5,     9,    13,    14,    16,
      19,    20,    24,    25,    29,    32,    34,    35,    36,    37,
      38,    48,    49,    54,    55,    56,    85,    86,    87,    88,
      90,    91,    92,    94,    95,    96,    97,    98,    56,    76,
       4,     6,     8,    17,    23,    26,    35,    83,    84,    58,
      83,    35,    80,    89,    98,    98,    98,     4,    85,    58,
      98,    98,    98,    98,    21,    98,    98,    79,     3,    39,
      40,    41,    42,    43,    44,    45,    46,    47,    48,    49,
      50,    51,    56,    57,    58,    31,    60,    77,    78,    81,
      21,    12,    12,    85,    58,     3,    27,    39,    30,    58,
      10,    98,    60,     5,    98,    98,    98,    98,    98,    98,
      98,    98,    98,    98,    98,    98,    98,    98,    99,    35,
      81,    58,    60,    83,    98,    85,    98,    98,    85,    89,
      58,    62,    98,   100,   101,    78,    28,    11,    62,    58,
      12,    60,    61,    98,    85,    21,    98,     7,    93,    83,
      98,    10,    85
};

#define yyerrok		(yyerrstatus = 0)
#define yyclearin	(yychar = YYEMPTY)
#define YYEMPTY		(-2)
#define YYEOF		0

#define YYACCEPT	goto yyacceptlab
#define YYABORT		goto yyabortlab
#define YYERROR		goto yyerrorlab


/* Like YYERROR except do call yyerror.  This remains here temporarily
   to ease the transition to the new meaning of YYERROR, for GCC.
   Once GCC version 2 has supplanted version 1, this can go.  */

#define YYFAIL		goto yyerrlab

#define YYRECOVERING()  (!!yyerrstatus)

#define YYBACKUP(Token, Value)					\
do								\
  if (yychar == YYEMPTY && yylen == 1)				\
    {								\
      yychar = (Token);						\
      yylval = (Value);						\
      yytoken = YYTRANSLATE (yychar);				\
      YYPOPSTACK (1);						\
      goto yybackup;						\
    }								\
  else								\
    {								\
      yyerror (YY_("syntax error: cannot back up")); \
      YYERROR;							\
    }								\
while (YYID (0))


#define YYTERROR	1
#define YYERRCODE	256


/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
   If N is 0, then set CURRENT to the empty location which ends
   the previous symbol: RHS[0] (always defined).  */

#define YYRHSLOC(Rhs, K) ((Rhs)[K])
#ifndef YYLLOC_DEFAULT
# define YYLLOC_DEFAULT(Current, Rhs, N)				\
    do									\
      if (YYID (N))                                                    \
	{								\
	  (Current).first_line   = YYRHSLOC (Rhs, 1).first_line;	\
	  (Current).first_column = YYRHSLOC (Rhs, 1).first_column;	\
	  (Current).last_line    = YYRHSLOC (Rhs, N).last_line;		\
	  (Current).last_column  = YYRHSLOC (Rhs, N).last_column;	\
	}								\
      else								\
	{								\
	  (Current).first_line   = (Current).last_line   =		\
	    YYRHSLOC (Rhs, 0).last_line;				\
	  (Current).first_column = (Current).last_column =		\
	    YYRHSLOC (Rhs, 0).last_column;				\
	}								\
    while (YYID (0))
#endif


/* YY_LOCATION_PRINT -- Print the location on the stream.
   This macro was not mandated originally: define only if we know
   we won't break user code: when these are the locations we know.  */

#ifndef YY_LOCATION_PRINT
# if YYLTYPE_IS_TRIVIAL
#  define YY_LOCATION_PRINT(File, Loc)			\
     fprintf (File, "%d.%d-%d.%d",			\
	      (Loc).first_line, (Loc).first_column,	\
	      (Loc).last_line,  (Loc).last_column)
# else
#  define YY_LOCATION_PRINT(File, Loc) ((void) 0)
# endif
#endif


/* YYLEX -- calling `yylex' with the right arguments.  */

#ifdef YYLEX_PARAM
# define YYLEX yylex (YYLEX_PARAM)
#else
# define YYLEX yylex ()
#endif

/* Enable debugging if requested.  */
#if YYDEBUG

# ifndef YYFPRINTF
#  include <stdio.h> /* INFRINGES ON USER NAME SPACE */
#  define YYFPRINTF fprintf
# endif

# define YYDPRINTF(Args)			\
do {						\
  if (yydebug)					\
    YYFPRINTF Args;				\
} while (YYID (0))

# define YY_SYMBOL_PRINT(Title, Type, Value, Location)			  \
do {									  \
  if (yydebug)								  \
    {									  \
      YYFPRINTF (stderr, "%s ", Title);					  \
      yy_symbol_print (stderr,						  \
		  Type, Value); \
      YYFPRINTF (stderr, "\n");						  \
    }									  \
} while (YYID (0))


/*--------------------------------.
| Print this symbol on YYOUTPUT.  |
`--------------------------------*/

/*ARGSUSED*/
#if (defined __STDC__ || defined __C99__FUNC__ \
     || defined __cplusplus || defined _MSC_VER)
static void
yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
#else
static void
yy_symbol_value_print (yyoutput, yytype, yyvaluep)
    FILE *yyoutput;
    int yytype;
    YYSTYPE const * const yyvaluep;
#endif
{
  if (!yyvaluep)
    return;
# ifdef YYPRINT
  if (yytype < YYNTOKENS)
    YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
# else
  YYUSE (yyoutput);
# endif
  switch (yytype)
    {
      default:
	break;
    }
}


/*--------------------------------.
| Print this symbol on YYOUTPUT.  |
`--------------------------------*/

#if (defined __STDC__ || defined __C99__FUNC__ \
     || defined __cplusplus || defined _MSC_VER)
static void
yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
#else
static void
yy_symbol_print (yyoutput, yytype, yyvaluep)
    FILE *yyoutput;
    int yytype;
    YYSTYPE const * const yyvaluep;
#endif
{
  if (yytype < YYNTOKENS)
    YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
  else
    YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);

  yy_symbol_value_print (yyoutput, yytype, yyvaluep);
  YYFPRINTF (yyoutput, ")");
}

/*------------------------------------------------------------------.
| yy_stack_print -- Print the state stack from its BOTTOM up to its |
| TOP (included).                                                   |
`------------------------------------------------------------------*/

#if (defined __STDC__ || defined __C99__FUNC__ \
     || defined __cplusplus || defined _MSC_VER)
static void
yy_stack_print (yytype_int16 *bottom, yytype_int16 *top)
#else
static void
yy_stack_print (bottom, top)
    yytype_int16 *bottom;
    yytype_int16 *top;
#endif
{
  YYFPRINTF (stderr, "Stack now");
  for (; bottom <= top; ++bottom)
    YYFPRINTF (stderr, " %d", *bottom);
  YYFPRINTF (stderr, "\n");
}

# define YY_STACK_PRINT(Bottom, Top)				\
do {								\
  if (yydebug)							\
    yy_stack_print ((Bottom), (Top));				\
} while (YYID (0))


/*------------------------------------------------.
| Report that the YYRULE is going to be reduced.  |
`------------------------------------------------*/

#if (defined __STDC__ || defined __C99__FUNC__ \
     || defined __cplusplus || defined _MSC_VER)
static void
yy_reduce_print (YYSTYPE *yyvsp, int yyrule)
#else
static void
yy_reduce_print (yyvsp, yyrule)
    YYSTYPE *yyvsp;
    int yyrule;
#endif
{
  int yynrhs = yyr2[yyrule];
  int yyi;
  unsigned long int yylno = yyrline[yyrule];
  YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
	     yyrule - 1, yylno);
  /* The symbols being reduced.  */
  for (yyi = 0; yyi < yynrhs; yyi++)
    {
      fprintf (stderr, "   $%d = ", yyi + 1);
      yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
		       &(yyvsp[(yyi + 1) - (yynrhs)])
		       		       );
      fprintf (stderr, "\n");
    }
}

# define YY_REDUCE_PRINT(Rule)		\
do {					\
  if (yydebug)				\
    yy_reduce_print (yyvsp, Rule); \
} while (YYID (0))

/* Nonzero means print parse trace.  It is left uninitialized so that
   multiple parsers can coexist.  */
int yydebug;
#else /* !YYDEBUG */
# define YYDPRINTF(Args)
# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
# define YY_STACK_PRINT(Bottom, Top)
# define YY_REDUCE_PRINT(Rule)
#endif /* !YYDEBUG */


/* YYINITDEPTH -- initial size of the parser's stacks.  */
#ifndef	YYINITDEPTH
# define YYINITDEPTH 200
#endif

/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
   if the built-in stack extension method is used).

   Do not make this value too large; the results are undefined if
   YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
   evaluated with infinite-precision integer arithmetic.  */

#ifndef YYMAXDEPTH
# define YYMAXDEPTH 10000
#endif



#if YYERROR_VERBOSE

# ifndef yystrlen
#  if defined __GLIBC__ && defined _STRING_H
#   define yystrlen strlen
#  else
/* Return the length of YYSTR.  */
#if (defined __STDC__ || defined __C99__FUNC__ \
     || defined __cplusplus || defined _MSC_VER)
static YYSIZE_T
yystrlen (const char *yystr)
#else
static YYSIZE_T
yystrlen (yystr)
    const char *yystr;
#endif
{
  YYSIZE_T yylen;
  for (yylen = 0; yystr[yylen]; yylen++)
    continue;
  return yylen;
}
#  endif
# endif

# ifndef yystpcpy
#  if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
#   define yystpcpy stpcpy
#  else
/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
   YYDEST.  */
#if (defined __STDC__ || defined __C99__FUNC__ \
     || defined __cplusplus || defined _MSC_VER)
static char *
yystpcpy (char *yydest, const char *yysrc)
#else
static char *
yystpcpy (yydest, yysrc)
    char *yydest;
    const char *yysrc;
#endif
{
  char *yyd = yydest;
  const char *yys = yysrc;

  while ((*yyd++ = *yys++) != '\0')
    continue;

  return yyd - 1;
}
#  endif
# endif

# ifndef yytnamerr
/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
   quotes and backslashes, so that it's suitable for yyerror.  The
   heuristic is that double-quoting is unnecessary unless the string
   contains an apostrophe, a comma, or backslash (other than
   backslash-backslash).  YYSTR is taken from yytname.  If YYRES is
   null, do not copy; instead, return the length of what the result
   would have been.  */
static YYSIZE_T
yytnamerr (char *yyres, const char *yystr)
{
  if (*yystr == '"')
    {
      YYSIZE_T yyn = 0;
      char const *yyp = yystr;

      for (;;)
	switch (*++yyp)
	  {
	  case '\'':
	  case ',':