/* A Bison parser, made by GNU Bison 2.4.1.  */

/* Skeleton implementation for Bison's Yacc-like parsers in C

      Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006

   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 3 of the License, 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, see <http://www.gnu.org/licenses/>.  */

/* As a special exception, you may create a larger work that contains

   part or all of the Bison parser skeleton and distribute that work

   under terms of your choice, so long as that work isn't itself a

   parser generator using the skeleton or a modified version thereof

   as a parser skeleton.  Alternatively, if you modify or redistribute

   the parser skeleton itself, you may (at your option) remove this

   special exception, which will cause the skeleton and the resulting

   Bison output files to be licensed under the GNU General Public

   License without this special exception.

   This special exception was added by the Free Software Foundation in

   version 2.2 of Bison.  */

/* C LALR(1) parser skeleton 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

/* Bison version.  */

#define YYBISON_VERSION "2.4.1"

/* Skeleton name.  */

#define YYSKELETON_NAME "yacc.c"

/* Pure parsers.  */

#define YYPURE 1

/* Push parsers.  */

#define YYPUSH 0

/* Pull parsers.  */

#define YYPULL 1

/* Using locations.  */

#define YYLSP_NEEDED 0

/* Substitute the variable and function names.  */

#define yyparse         xpathyyparse

#define yylex           xpathyylex

#define yyerror         xpathyyerror

#define yylval          xpathyylval

#define yychar          xpathyychar

#define yydebug         xpathyydebug

#define yynerrs         xpathyynerrs

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

/* Line 189 of yacc.c  */

#include "config.h"

#if ENABLE(XPATH)

#include "XPathFunctions.h"

#include "XPathNSResolver.h"

#include "XPathParser.h"

#include "XPathPath.h"

#include "XPathPredicate.h"

#include "XPathVariableReference.h"

#include <wtf/FastMalloc.h>

#define YYMALLOC fastMalloc

#define YYFREE fastFree

#define YYENABLE_NLS 0

#define YYLTYPE_IS_TRIVIAL 1

#define YYDEBUG 0

#define YYMAXDEPTH 10000

#define YYPARSE_PARAM parserParameter

#define PARSER static_cast<Parser*>(parserParameter)

using namespace WebCore;

using namespace XPath;

/* Line 189 of yacc.c  */

#line 111 "generated/XPathGrammar.tab.c"

/* 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

/* Enabling the token table.  */

#ifndef YYTOKEN_TABLE

# define YYTOKEN_TABLE 0

#endif

/* Tokens.  */

#ifndef YYTOKENTYPE

# define YYTOKENTYPE

   /* Put the tokens into the symbol table, so that GDB and other debuggers

      know about them.  */

   enum yytokentype {

     MULOP = 258,

     RELOP = 259,

     EQOP = 260,

     MINUS = 261,

     PLUS = 262,

     AND = 263,

     OR = 264,

     AXISNAME = 265,

     NODETYPE = 266,

     PI = 267,

     FUNCTIONNAME = 268,

     LITERAL = 269,

     VARIABLEREFERENCE = 270,

     NUMBER = 271,

     DOTDOT = 272,

     SLASHSLASH = 273,

     NAMETEST = 274,

     XPATH_ERROR = 275

   };

#endif

#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED

typedef union YYSTYPE

{

/* Line 214 of yacc.c  */

    Step::Axis axis;

    Step::NodeTest* nodeTest;

    NumericOp::Opcode numop;

    EqTestOp::Opcode eqop;

    String* str;

    Expression* expr;

    Vector<Predicate*>* predList;

    Vector<Expression*>* argList;

    Step* step;

    LocationPath* locationPath;

/* Line 214 of yacc.c  */

#line 182 "generated/XPathGrammar.tab.c"

} YYSTYPE;

# define YYSTYPE_IS_TRIVIAL 1

# define yystype YYSTYPE /* obsolescent; will be withdrawn */

# define YYSTYPE_IS_DECLARED 1

#endif

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

/* Line 264 of yacc.c  */

static int xpathyylex(YYSTYPE* yylval) { return Parser::current()->lex(yylval); }

static void xpathyyerror(const char*) { }

/* Line 264 of yacc.c  */

#line 202 "generated/XPathGrammar.tab.c"

#ifdef short

# undef short

#endif

#ifdef YYTYPE_UINT8

typedef YYTYPE_UINT8 yytype_uint8;

#else

typedef unsigned char yytype_uint8;

#endif

#ifdef YYTYPE_INT8

typedef YYTYPE_INT8 yytype_int8;

#elif (defined __STDC__ || defined __C99__FUNC__ \

     || defined __cplusplus || defined _MSC_VER)

typedef signed char yytype_int8;

#else

typedef short int yytype_int8;

#endif

#ifdef YYTYPE_UINT16

typedef YYTYPE_UINT16 yytype_uint16;

#else

typedef unsigned short int yytype_uint16;

#endif

#ifdef YYTYPE_INT16

typedef YYTYPE_INT16 yytype_int16;

#else

typedef short int yytype_int16;

#endif

#ifndef YYSIZE_T

# ifdef __SIZE_TYPE__

#  define YYSIZE_T __SIZE_TYPE__

# elif defined size_t

#  define YYSIZE_T size_t

# elif ! defined YYSIZE_T && (defined __STDC__ || defined __C99__FUNC__ \

     || defined __cplusplus || defined _MSC_VER)

#  include <stddef.h> /* INFRINGES ON USER NAME SPACE */

#  define YYSIZE_T size_t

# else

#  define YYSIZE_T unsigned int

# endif

#endif

#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)

#ifndef YY_

# if YYENABLE_NLS

#  if ENABLE_NLS

#   include <libintl.h> /* INFRINGES ON USER NAME SPACE */

#   define YY_(msgid) dgettext ("bison-runtime", msgid)

#  endif

# endif

# ifndef YY_

#  define YY_(msgid) msgid

# endif

#endif

/* Suppress unused-variable warnings by "using" E.  */

#if ! defined lint || defined __GNUC__

# define YYUSE(e) ((void) (e))

#else

# define YYUSE(e) /* empty */

#endif

/* Identity function, used to suppress warnings about constant conditions.  */

#ifndef lint

# define YYID(n) (n)

#else

#if (defined __STDC__ || defined __C99__FUNC__ \

     || defined __cplusplus || defined _MSC_VER)

static int

YYID (int yyi)

#else

static int

YYID (yyi)

    int yyi;

#endif

{

  return yyi;

}

#endif

#if ! defined yyoverflow || YYERROR_VERBOSE

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

# ifdef YYSTACK_USE_ALLOCA

#  if YYSTACK_USE_ALLOCA

#   ifdef __GNUC__

#    define YYSTACK_ALLOC __builtin_alloca

#   elif defined __BUILTIN_VA_ARG_INCR

#    include <alloca.h> /* INFRINGES ON USER NAME SPACE */

#   elif defined _AIX

#    define YYSTACK_ALLOC __alloca

#   elif defined _MSC_VER

#    include <malloc.h> /* INFRINGES ON USER NAME SPACE */

#    define alloca _alloca

#   else

#    define YYSTACK_ALLOC alloca

#    if ! defined _ALLOCA_H && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \

     || defined __cplusplus || defined _MSC_VER)

#     include <stdlib.h> /* INFRINGES ON USER NAME SPACE */

#     ifndef _STDLIB_H

#      define _STDLIB_H 1

#     endif

#    endif

#   endif

#  endif

# endif

# ifdef YYSTACK_ALLOC

   /* Pacify GCC's `empty if-body' warning.  */

#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0))

#  ifndef YYSTACK_ALLOC_MAXIMUM

    /* The OS might guarantee only one guard page at the bottom of the stack,

       and a page size can be as small as 4096 bytes.  So we cannot safely

       invoke alloca (N) if N exceeds 4096.  Use a slightly smaller number

       to allow for a few compiler-allocated temporary stack slots.  */

#   define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */

#  endif

# else

#  define YYSTACK_ALLOC YYMALLOC

#  define YYSTACK_FREE YYFREE

#  ifndef YYSTACK_ALLOC_MAXIMUM

#   define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM

#  endif

#  if (defined __cplusplus && ! defined _STDLIB_H \

       && ! ((defined YYMALLOC || defined malloc) \

	     && (defined YYFREE || defined free)))

#   include <stdlib.h> /* INFRINGES ON USER NAME SPACE */

#   ifndef _STDLIB_H

#    define _STDLIB_H 1

#   endif

#  endif

#  ifndef YYMALLOC

#   define YYMALLOC malloc

#   if ! defined malloc && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \

     || defined __cplusplus || defined _MSC_VER)

void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */

#   endif

#  endif

#  ifndef YYFREE

#   define YYFREE free

#   if ! defined free && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \

     || defined __cplusplus || defined _MSC_VER)

void free (void *); /* INFRINGES ON USER NAME SPACE */

#   endif

#  endif

# endif

#endif /* ! defined yyoverflow || YYERROR_VERBOSE */

#if (! defined yyoverflow \

     && (! defined __cplusplus \

	 || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))

/* A type that is properly aligned for any stack member.  */

union yyalloc

{

  yytype_int16 yyss_alloc;

  YYSTYPE yyvs_alloc;

};

/* 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 (yytype_int16) + sizeof (YYSTYPE)) \

      + YYSTACK_GAP_MAXIMUM)

/* Copy COUNT objects from FROM to TO.  The source and destination do

   not overlap.  */

# ifndef YYCOPY

#  if defined __GNUC__ && 1 < __GNUC__

#   define YYCOPY(To, From, Count) \

      __builtin_memcpy (To, From, (Count) * sizeof (*(From)))

#  else

#   define YYCOPY(To, From, Count)		\

      do					\

	{					\

	  YYSIZE_T yyi;				\

	  for (yyi = 0; yyi < (Count); yyi++)	\

	    (To)[yyi] = (From)[yyi];		\

	}					\

      while (YYID (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_alloc, Stack)				\

    do									\

      {									\

	YYSIZE_T yynewbytes;						\

	YYCOPY (&yyptr->Stack_alloc, Stack, yysize);			\

	Stack = &yyptr->Stack_alloc;					\

	yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \

	yyptr += yynewbytes / sizeof (*yyptr);				\

      }									\

    while (YYID (0))

#endif

/* YYFINAL -- State number of the termination state.  */

#define YYFINAL  47

/* YYLAST -- Last index in YYTABLE.  */

#define YYLAST   120

/* YYNTOKENS -- Number of terminals.  */

#define YYNTOKENS  30

/* YYNNTS -- Number of nonterminals.  */

#define YYNNTS  27

/* YYNRULES -- Number of rules.  */

#define YYNRULES  61

/* YYNRULES -- Number of states.  */

#define YYNSTATES  94

/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */

#define YYUNDEFTOK  2

#define YYMAXUTOK   275

#define YYTRANSLATE(YYX)						\

  ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)

/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX.  */

static const yytype_uint8 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,

      23,    24,     2,     2,    28,     2,    27,    21,     2,     2,

       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,

       2,     2,     2,     2,    22,     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,    25,     2,    26,     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,    29,     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,    16,    17,    18,    19,    20

};

#if YYDEBUG

/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in

   YYRHS.  */

static const yytype_uint8 yyprhs[] =

{

       0,     0,     3,     5,     7,     9,    11,    14,    17,    19,

      23,    27,    30,    33,    37,    41,    43,    45,    47,    51,

      55,    60,    61,    63,    65,    68,    72,    74,    76,    78,

      80,    84,    86,    88,    90,    94,    99,   101,   105,   107,

     109,   113,   115,   117,   121,   125,   127,   130,   132,   136,

     138,   142,   144,   148,   150,   154,   156,   160,   164,   166,

     170,   172

};

/* YYRHS -- A `-1'-separated list of the rules' RHS.  */

static const yytype_int8 yyrhs[] =

{

      31,     0,    -1,    50,    -1,    34,    -1,    33,    -1,    21,

      -1,    21,    34,    -1,    41,    34,    -1,    35,    -1,    34,

      21,    35,    -1,    34,    41,    35,    -1,    37,    38,    -1,

      19,    38,    -1,    36,    37,    38,    -1,    36,    19,    38,

      -1,    42,    -1,    10,    -1,    22,    -1,    11,    23,    24,

      -1,    12,    23,    24,    -1,    12,    23,    14,    24,    -1,

      -1,    39,    -1,    40,    -1,    39,    40,    -1,    25,    31,

      26,    -1,    18,    -1,    27,    -1,    17,    -1,    15,    -1,

      23,    31,    24,    -1,    14,    -1,    16,    -1,    44,    -1,

      13,    23,    24,    -1,    13,    23,    45,    24,    -1,    46,

      -1,    45,    28,    46,    -1,    31,    -1,    48,    -1,    47,

      29,    48,    -1,    32,    -1,    49,    -1,    49,    21,    34,

      -1,    49,    41,    34,    -1,    43,    -1,    43,    39,    -1,

      51,    -1,    50,     9,    51,    -1,    52,    -1,    51,     8,

      52,    -1,    53,    -1,    52,     5,    53,    -1,    54,    -1,

      53,     4,    54,    -1,    55,    -1,    54,     7,    55,    -1,

      54,     6,    55,    -1,    56,    -1,    55,     3,    56,    -1,

      47,    -1,     6,    56,    -1

};

/* YYRLINE[YYN] -- source line where rule number YYN was defined.  */

static const yytype_uint16 yyrline[] =

{

       0,   121,   121,   128,   133,   140,   146,   151,   160,   168,

     174,   184,   195,   213,   224,   242,   246,   248,   255,   268,

     275,   286,   290,   294,   302,   310,   317,   325,   331,   339,

     346,   351,   358,   365,   369,   378,   390,   398,   406,   410,

     412,   424,   429,   431,   440,   453,   455,   465,   467,   477,

     479,   489,   491,   501,   503,   513,   515,   523,   533,   535,

     545,   547

};

#endif

#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE

/* YYTNAME[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", "MULOP", "RELOP", "EQOP", "MINUS",

  "PLUS", "AND", "OR", "AXISNAME", "NODETYPE", "PI", "FUNCTIONNAME",

  "LITERAL", "VARIABLEREFERENCE", "NUMBER", "DOTDOT", "SLASHSLASH",

  "NAMETEST", "XPATH_ERROR", "'/'", "'@'", "'('", "')'", "'['", "']'",

  "'.'", "','", "'|'", "$accept", "Expr", "LocationPath",

  "AbsoluteLocationPath", "RelativeLocationPath", "Step", "AxisSpecifier",

  "NodeTest", "OptionalPredicateList", "PredicateList", "Predicate",