slp_filter_y.c

SLP协议在linux下的实现。此版本为1.2.1版。官方网站为www.openslp.org

/* A Bison parser, made by GNU Bison 1.875.  */

/* Skeleton parser for Yacc-like parsing with Bison,
   Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

/* As a special exception, when this file is copied by Bison into a
   Bison output file, you may use that output file without restriction.
   This special exception was added by the Free Software Foundation
   in version 1.24 of Bison.  */

/* Written by Richard Stallman by simplifying the original so called
   ``semantic'' parser.  */

/* All symbols defined below should begin with yy or YY, to avoid
   infringing on user name space.  This should be done even for local
   variables, as they might otherwise be expanded by user macros.
   There are some unavoidable exceptions within include files to
   define necessary library symbols; they are noted "INFRINGES ON
   USER NAME SPACE" below.  */

/* Identify Bison output.  */
#define YYBISON 1

/* Skeleton name.  */
#define YYSKELETON_NAME "yacc.c"

/* Pure parsers.  */
#define YYPURE 0

/* Using locations.  */
#define YYLSP_NEEDED 0



/* Tokens.  */
#ifndef YYTOKENTYPE
# define YYTOKENTYPE
   /* Put the tokens into the symbol table, so that GDB and other debuggers
      know about them.  */
   enum yytokentype {
     L_PAREN = 258,
     R_PAREN = 259,
     OP_AND = 260,
     OP_OR = 261,
     OP_NOT = 262,
     OP_EQU = 263,
     OP_GT = 264,
     OP_LT = 265,
     OP_PRESENT = 266,
     OP_APPROX = 267,
     VAL_INT = 268,
     VAL_BOOL = 269,
     OPERAND = 270
   };
#endif
#define L_PAREN 258
#define R_PAREN 259
#define OP_AND 260
#define OP_OR 261
#define OP_NOT 262
#define OP_EQU 263
#define OP_GT 264
#define OP_LT 265
#define OP_PRESENT 266
#define OP_APPROX 267
#define VAL_INT 268
#define VAL_BOOL 269
#define OPERAND 270




/* Copy the first part of user declarations.  */
#line 25 "slp_filter_y.y"


#define yymaxdepth    slp_filter_maxdepth
#define yyparse       slp_filter_parse
#define yylex         slp_filter_lex
#define yyerror       slp_filter_error
#define yylval        slp_filter_lval
#define yychar        slp_filter_char
#define yydebug       slp_filter_debug
#define yypact        slp_filter_pact  
#define yyr1          slp_filter_r1                    
#define yyr2          slp_filter_r2                    
#define yydef         slp_filter_def           
#define yychk         slp_filter_chk           
#define yypgo         slp_filter_pgo           
#define yyact         slp_filter_act           
#define yyexca        slp_filter_exca
#define yyerrflag     slp_filter_errflag
#define yynerrs       slp_filter_nerrs
#define yyps          slp_filter_ps
#define yypv          slp_filter_pv
#define yys           slp_filter_s
#define yy_yys        slp_filter_yys
#define yystate       slp_filter_state
#define yytmp         slp_filter_tmp
#define yyv           slp_filter_v
#define yy_yyv        slp_filter_yyv
#define yyval         slp_filter_val
#define yylloc        slp_filter_lloc
#define yyreds        slp_filter_reds
#define yytoks        slp_filter_toks
#define yylhs         slp_filter_yylhs
#define yylen         slp_filter_yylen
#define yydefred      slp_filter_yydefred
#define yydgoto       slp_filter_yydgoto
#define yysindex      slp_filter_yysindex
#define yyrindex      slp_filter_yyrindex
#define yygindex      slp_filter_yygindex
#define yytable       slp_filter_yytable
#define yycheck       slp_filter_yycheck
#define yyname        slp_filter_yyname
#define yyrule        slp_filter_yyrule

#include "slp_filter.h"
#include "slp_linkedlist.h"

#include <unistd.h>
#include <string.h>
#include <stdlib.h>


#ifndef FALSE
#define FALSE   0
#endif

#ifndef TRUE
#define TRUE   (!FALSE)
#endif

/* prototypes and globals go here */

void slp_filter_close_lexer(unsigned int handle);
unsigned int slp_filter_init_lexer(const char *s);
int slp_filter_parse(void);
int slp_filter_parse(void);
void slp_filter_error(char *, ...);
int slp_filter_lex(void);

/* have a place to put attributes and the filter while the parser is working */
/* on them makes it easier to recover from parser errors - all the memory we  */
/* need to free is available from the list heads below.  */

/* listhead for reduced filters until the parser is finished */
static filterHead reducedFilters = { &reducedFilters, &reducedFilters, TRUE } ;
static int nesting_level;



/* Enabling traces.  */
#ifndef YYDEBUG
# define YYDEBUG 0
#endif

/* Enabling verbose error messages.  */
#ifdef YYERROR_VERBOSE
# undef YYERROR_VERBOSE
# define YYERROR_VERBOSE 1
#else
# define YYERROR_VERBOSE 0
#endif

#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
#line 105 "slp_filter_y.y"
typedef union YYSTYPE {
  int filter_int;
  char *filter_string;
  SLPLDAPFilter *filter_filter;
} YYSTYPE;
/* Line 191 of yacc.c.  */
#line 189 "slp_filter_y.c"
# define yystype YYSTYPE /* obsolescent; will be withdrawn */
# define YYSTYPE_IS_DECLARED 1
# define YYSTYPE_IS_TRIVIAL 1
#endif



/* Copy the second part of user declarations.  */


/* Line 214 of yacc.c.  */
#line 201 "slp_filter_y.c"

#if ! defined (yyoverflow) || YYERROR_VERBOSE

/* The parser invokes alloca or malloc; define the necessary symbols.  */

# if YYSTACK_USE_ALLOCA
#  define YYSTACK_ALLOC alloca
# else
#  ifndef YYSTACK_USE_ALLOCA
#   if defined (alloca) || defined (_ALLOCA_H)
#    define YYSTACK_ALLOC alloca
#   else
#    ifdef __GNUC__
#     define YYSTACK_ALLOC __builtin_alloca
#    endif
#   endif
#  endif
# endif

# ifdef YYSTACK_ALLOC
   /* Pacify GCC's `empty if-body' warning. */
#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
# else
#  if defined (__STDC__) || defined (__cplusplus)
#   include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
#   define YYSIZE_T size_t
#  endif
#  define YYSTACK_ALLOC malloc
#  define YYSTACK_FREE free
# endif
#endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */


#if (! defined (yyoverflow) \
     && (! defined (__cplusplus) \
	 || (YYSTYPE_IS_TRIVIAL)))

/* A type that is properly aligned for any stack member.  */
union yyalloc
{
  short yyss;
  YYSTYPE yyvs;
  };

/* The size of the maximum gap between one aligned stack and the next.  */
# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)

/* The size of an array large to enough to hold all stacks, each with
   N elements.  */
# define YYSTACK_BYTES(N) \
     ((N) * (sizeof (short) + sizeof (YYSTYPE))				\
      + YYSTACK_GAP_MAXIMUM)

/* Copy COUNT objects from FROM to TO.  The source and destination do
   not overlap.  */
# ifndef YYCOPY
#  if 1 < __GNUC__
#   define YYCOPY(To, From, Count) \
      __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
#  else
#   define YYCOPY(To, From, Count)		\
      do					\
	{					\
	  register YYSIZE_T yyi;		\
	  for (yyi = 0; yyi < (Count); yyi++)	\
	    (To)[yyi] = (From)[yyi];		\
	}					\
      while (0)
#  endif
# endif

/* Relocate STACK from its old location to the new one.  The
   local variables YYSIZE and YYSTACKSIZE give the old and new number of
   elements in the stack, and YYPTR gives the new location of the
   stack.  Advance YYPTR to a properly aligned location for the next
   stack.  */
# define YYSTACK_RELOCATE(Stack)					\
    do									\
      {									\
	YYSIZE_T yynewbytes;						\
	YYCOPY (&yyptr->Stack, Stack, yysize);				\
	Stack = &yyptr->Stack;						\
	yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
	yyptr += yynewbytes / sizeof (*yyptr);				\
      }									\
    while (0)

#endif

#if defined (__STDC__) || defined (__cplusplus)
   typedef signed char yysigned_char;
#else
   typedef short yysigned_char;
#endif

/* YYFINAL -- State number of the termination state. */
#define YYFINAL  5
/* YYLAST -- Last index in YYTABLE.  */
#define YYLAST   22

/* YYNTOKENS -- Number of terminals. */
#define YYNTOKENS  16
/* YYNNTS -- Number of nonterminals. */
#define YYNNTS  8
/* YYNRULES -- Number of rules. */
#define YYNRULES  18
/* YYNRULES -- Number of states. */
#define YYNSTATES  26

/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
#define YYUNDEFTOK  2
#define YYMAXUTOK   270

#define YYTRANSLATE(YYX) 						\
  ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)

/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX.  */
static const unsigned char yytranslate[] =
{
       0,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     1,     2,     3,     4,
       5,     6,     7,     8,     9,    10,    11,    12,    13,    14,
      15
};

#if YYDEBUG
/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
   YYRHS.  */
static const unsigned char yyprhs[] =
{
       0,     0,     3,     5,     8,    13,    17,    19,    21,    23,
      25,    27,    30,    34,    38,    42,    44,    46,    48
};

/* YYRHS -- A `-1'-separated list of the rules' RHS. */
static const yysigned_char yyrhs[] =
{
      17,     0,    -1,    18,    -1,    17,    18,    -1,    19,    21,
      17,    20,    -1,    19,    22,    20,    -1,     3,    -1,     4,
      -1,     5,    -1,     6,    -1,     7,    -1,    15,    11,    -1,
      15,    23,    13,    -1,    15,    23,    14,    -1,    15,    23,
      15,    -1,     8,    -1,     9,    -1,    10,    -1,    12,    -1
};

/* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
static const unsigned char yyrline[] =
{
       0,   124,   124,   124,   126,   156,   166,   171,   176,   176,
     176,   181,   197,   213,   229,   245,   245,   245,   245
};
#endif

#if YYDEBUG || YYERROR_VERBOSE
/* YYTNME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
   First, the terminals, then, starting at YYNTOKENS, nonterminals. */
static const char *const yytname[] =
{
  "$end", "error", "$undefined", "L_PAREN", "R_PAREN", "OP_AND", "OP_OR", 
  "OP_NOT", "OP_EQU", "OP_GT", "OP_LT", "OP_PRESENT", "OP_APPROX", 
  "VAL_INT", "VAL_BOOL", "OPERAND", "$accept", "filter_list", "filter", 
  "filter_open", "filter_close", "filter_op", "expression", 
  "exp_operator", 0
};
#endif

# ifdef YYPRINT
/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
   token YYLEX-NUM.  */
static const unsigned short yytoknum[] =
{
       0,   256,   257,   258,   259,   260,   261,   262,   263,   264,
     265,   266,   267,   268,   269,   270
};
# endif

/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
static const unsigned char yyr1[] =
{
       0,    16,    17,    17,    18,    18,    19,    20,    21,    21,
      21,    22,    22,    22,    22,    23,    23,    23,    23
};

/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
static const unsigned char yyr2[] =
{
       0,     2,     1,     2,     4,     3,     1,     1,     1,     1,
       1,     2,     3,     3,     3,     1,     1,     1,     1
};

/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
   STATE-NUM when YYTABLE doesn't specify something else to do.  Zero
   means the default is an error.  */
static const unsigned char yydefact[] =
{
       0,     6,     0,     2,     0,     1,     3,     8,     9,    10,
       0,     0,     0,    15,    16,    17,    11,    18,     0,     0,
       7,     5,    12,    13,    14,     4
};

/* YYDEFGOTO[NTERM-NUM]. */
static const yysigned_char yydefgoto[] =
{
      -1,     2,     3,     4,    21,    11,    12,    18
};

/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
   STATE-NUM.  */
#define YYPACT_NINF -5
static const yysigned_char yypact[] =
{
       9,    -5,    10,    -5,    -4,    -5,    -5,    -5,    -5,    -5,
      -3,     9,     0,    -5,    -5,    -5,    -5,    -5,     1,    15,
      -5,    -5,    -5,    -5,    -5,    -5
};

/* YYPGOTO[NTERM-NUM].  */
static const yysigned_char yypgoto[] =
{
      -5,    11,    -2,    -5,     2,    -5,    -5,    -5
};

/* YYTABLE[YYPACT[STATE-NUM]].  What to do in state STATE-NUM.  If
   positive, shift that token.  If negative, reduce the rule which
   number is the opposite.  If zero, do what YYDEFACT says.
   If YYTABLE_NINF, syntax error.  */
#define YYTABLE_NINF -1
static const unsigned char yytable[] =
{
       6,     7,     8,     9,    20,    13,    14,    15,    16,    17,
       5,    10,     1,     1,    22,    23,    24,     6,     1,    20,
       0,    25,    19
};

static const yysigned_char yycheck[] =
{
       2,     5,     6,     7,     4,     8,     9,    10,    11,    12,
       0,    15,     3,     3,    13,    14,    15,    19,     3,     4,
      -1,    19,    11
};

/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
   symbol of state STATE-NUM.  */
static const unsigned char yystos[] =
{
       0,     3,    17,    18,    19,     0,    18,     5,     6,     7,
      15,    21,    22,     8,     9,    10,    11,    12,    23,    17,
       4,    20,    13,    14,    15,    20
};

#if ! defined (YYSIZE_T) && defined (__SIZE_TYPE__)
# define YYSIZE_T __SIZE_TYPE__
#endif
#if ! defined (YYSIZE_T) && defined (size_t)
# define YYSIZE_T size_t
#endif
#if ! defined (YYSIZE_T)
# if defined (__STDC__) || defined (__cplusplus)
#  include <stddef.h> /* INFRINGES ON USER NAME SPACE */
#  define YYSIZE_T size_t
# endif
#endif
#if ! defined (YYSIZE_T)
# define YYSIZE_T unsigned int
#endif

#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 yyerrlab1

/* 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;						\
      goto yybackup;						\
    }								\
  else								\
    { 								\
      yyerror ("syntax error: cannot back up");\
      YYERROR;							\
    }								\
while (0)