/* A Bison parser, made by GNU Bison 3.5.1.  */

/* Bison implementation for Yacc-like parsers in C

   Copyright (C) 1984, 1989-1990, 2000-2015, 2018-2020 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.  */

/* Undocumented macros, especially those whose name start with YY_,

   are private implementation details.  Do not rely on them.  */

/* Identify Bison output.  */

#define YYBISON 1

/* Bison version.  */

#define YYBISON_VERSION "3.5.1"

/* Skeleton name.  */

#define YYSKELETON_NAME "yacc.c"

/* Pure parsers.  */

#define YYPURE 1

/* Push parsers.  */

#define YYPUSH 0

/* Pull parsers.  */

#define YYPULL 1

/* Substitute the variable and function names.  */

#define yyparse         igraph_ncol_yyparse

#define yylex           igraph_ncol_yylex

#define yyerror         igraph_ncol_yyerror

#define yydebug         igraph_ncol_yydebug

#define yynerrs         igraph_ncol_yynerrs

/* First part of user prologue.  */

#line 23 "/src/igraph/src/io/ncol-parser.y"

/*

   igraph library.

   Copyright (C) 2006-2012  Gabor Csardi <csardi.gabor@gmail.com>

   334 Harvard st, Cambridge, MA, 02138 USA

   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 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, write to the Free Software

   Foundation, Inc.,  51 Franklin Street, Fifth Floor, Boston, MA

   02110-1301 USA

*/

#include "igraph_types.h"

#include "igraph_memory.h"

#include "igraph_error.h"

#include "io/ncol-header.h"

#include "io/parsers/ncol-parser.h"

#include "io/parsers/ncol-lexer.h"

#include "io/parse_utils.h"

#include "internal/hacks.h"

#include <stdio.h>

#include <string.h>

int igraph_ncol_yyerror(YYLTYPE* locp,

                        igraph_i_ncol_parsedata_t *context,

                        const char *s);

#define scanner context->scanner

#line 119 "/src/igraph/build/src/io/parsers/ncol-parser.c"

# ifndef YY_CAST

#  ifdef __cplusplus

#   define YY_CAST(Type, Val) static_cast<Type> (Val)

#   define YY_REINTERPRET_CAST(Type, Val) reinterpret_cast<Type> (Val)

#  else

#   define YY_CAST(Type, Val) ((Type) (Val))

#   define YY_REINTERPRET_CAST(Type, Val) ((Type) (Val))

#  endif

# endif

# ifndef YY_NULLPTR

#  if defined __cplusplus

#   if 201103L <= __cplusplus

#    define YY_NULLPTR nullptr

#   else

#    define YY_NULLPTR 0

#   endif

#  else

#   define YY_NULLPTR ((void*)0)

#  endif

# endif

/* Enabling verbose error messages.  */

#ifdef YYERROR_VERBOSE

# undef YYERROR_VERBOSE

# define YYERROR_VERBOSE 1

#else

# define YYERROR_VERBOSE 1

#endif

/* Use api.header.include to #include this header

   instead of duplicating it here.  */

#ifndef YY_IGRAPH_NCOL_YY_SRC_IGRAPH_BUILD_SRC_IO_PARSERS_NCOL_PARSER_H_INCLUDED

# define YY_IGRAPH_NCOL_YY_SRC_IGRAPH_BUILD_SRC_IO_PARSERS_NCOL_PARSER_H_INCLUDED

/* Debug traces.  */

#ifndef YYDEBUG

# define YYDEBUG 0

#endif

#if YYDEBUG

extern int igraph_ncol_yydebug;

#endif

/* Token type.  */

#ifndef YYTOKENTYPE

# define YYTOKENTYPE

  enum yytokentype

  {

    END = 0,

    ALNUM = 258,

    NEWLINE = 259,

    ERROR = 260

  };

#endif

/* Value type.  */

#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED

union YYSTYPE

{

#line 77 "/src/igraph/src/io/ncol-parser.y"

  igraph_int_t edgenum;

  igraph_real_t weightnum;

#line 183 "/src/igraph/build/src/io/parsers/ncol-parser.c"

};

typedef union YYSTYPE YYSTYPE;

# define YYSTYPE_IS_TRIVIAL 1

# define YYSTYPE_IS_DECLARED 1

#endif

/* Location type.  */

#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED

typedef struct YYLTYPE YYLTYPE;

struct YYLTYPE

{

  int first_line;

  int first_column;

  int last_line;

  int last_column;

};

# define YYLTYPE_IS_DECLARED 1

# define YYLTYPE_IS_TRIVIAL 1

#endif

int igraph_ncol_yyparse (igraph_i_ncol_parsedata_t* context);

#endif /* !YY_IGRAPH_NCOL_YY_SRC_IGRAPH_BUILD_SRC_IO_PARSERS_NCOL_PARSER_H_INCLUDED  */

#ifdef short

# undef short

#endif

/* On compilers that do not define __PTRDIFF_MAX__ etc., make sure

   <limits.h> and (if available) <stdint.h> are included

   so that the code can choose integer types of a good width.  */

#ifndef __PTRDIFF_MAX__

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

# if defined __STDC_VERSION__ && 199901 <= __STDC_VERSION__

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

#  define YY_STDINT_H

# endif

#endif

/* Narrow types that promote to a signed type and that can represent a

   signed or unsigned integer of at least N bits.  In tables they can

   save space and decrease cache pressure.  Promoting to a signed type

   helps avoid bugs in integer arithmetic.  */

#ifdef __INT_LEAST8_MAX__

typedef __INT_LEAST8_TYPE__ yytype_int8;

#elif defined YY_STDINT_H

typedef int_least8_t yytype_int8;

#else

typedef signed char yytype_int8;

#endif

#ifdef __INT_LEAST16_MAX__

typedef __INT_LEAST16_TYPE__ yytype_int16;

#elif defined YY_STDINT_H

typedef int_least16_t yytype_int16;

#else

typedef short yytype_int16;

#endif

#if defined __UINT_LEAST8_MAX__ && __UINT_LEAST8_MAX__ <= __INT_MAX__

typedef __UINT_LEAST8_TYPE__ yytype_uint8;

#elif (!defined __UINT_LEAST8_MAX__ && defined YY_STDINT_H \

       && UINT_LEAST8_MAX <= INT_MAX)

typedef uint_least8_t yytype_uint8;

#elif !defined __UINT_LEAST8_MAX__ && UCHAR_MAX <= INT_MAX

typedef unsigned char yytype_uint8;

#else

typedef short yytype_uint8;

#endif

#if defined __UINT_LEAST16_MAX__ && __UINT_LEAST16_MAX__ <= __INT_MAX__

typedef __UINT_LEAST16_TYPE__ yytype_uint16;

#elif (!defined __UINT_LEAST16_MAX__ && defined YY_STDINT_H \

       && UINT_LEAST16_MAX <= INT_MAX)

typedef uint_least16_t yytype_uint16;

#elif !defined __UINT_LEAST16_MAX__ && USHRT_MAX <= INT_MAX

typedef unsigned short yytype_uint16;

#else

typedef int yytype_uint16;

#endif

#ifndef YYPTRDIFF_T

# if defined __PTRDIFF_TYPE__ && defined __PTRDIFF_MAX__

#  define YYPTRDIFF_T __PTRDIFF_TYPE__

#  define YYPTRDIFF_MAXIMUM __PTRDIFF_MAX__

# elif defined PTRDIFF_MAX

#  ifndef ptrdiff_t

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

#  endif

#  define YYPTRDIFF_T ptrdiff_t

#  define YYPTRDIFF_MAXIMUM PTRDIFF_MAX

# else

#  define YYPTRDIFF_T long

#  define YYPTRDIFF_MAXIMUM LONG_MAX

# endif

#endif

#ifndef YYSIZE_T

# ifdef __SIZE_TYPE__

#  define YYSIZE_T __SIZE_TYPE__

# elif defined size_t

#  define YYSIZE_T size_t

# elif defined __STDC_VERSION__ && 199901 <= __STDC_VERSION__

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

#  define YYSIZE_T size_t

# else

#  define YYSIZE_T unsigned

# endif

#endif

#define YYSIZE_MAXIMUM                                  \

  YY_CAST (YYPTRDIFF_T,                                 \

           (YYPTRDIFF_MAXIMUM < YY_CAST (YYSIZE_T, -1)  \

            ? YYPTRDIFF_MAXIMUM                         \

            : YY_CAST (YYSIZE_T, -1)))

#define YYSIZEOF(X) YY_CAST (YYPTRDIFF_T, sizeof (X))

/* Stored state numbers (used for stacks). */

typedef yytype_int8 yy_state_t;

/* State numbers in computations.  */

typedef int yy_state_fast_t;

#ifndef YY_

# if defined YYENABLE_NLS && 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

#ifndef YY_ATTRIBUTE_PURE

# if defined __GNUC__ && 2 < __GNUC__ + (96 <= __GNUC_MINOR__)

#  define YY_ATTRIBUTE_PURE __attribute__ ((__pure__))

# else

#  define YY_ATTRIBUTE_PURE

# endif

#endif

#ifndef YY_ATTRIBUTE_UNUSED

# if defined __GNUC__ && 2 < __GNUC__ + (7 <= __GNUC_MINOR__)

#  define YY_ATTRIBUTE_UNUSED __attribute__ ((__unused__))

# else

#  define YY_ATTRIBUTE_UNUSED

# 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

#if defined __GNUC__ && ! defined __ICC && 407 <= __GNUC__ * 100 + __GNUC_MINOR__

/* Suppress an incorrect diagnostic about yylval being uninitialized.  */

# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN                            \

    _Pragma ("GCC diagnostic push")                                     \

    _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")              \

    _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")

# define YY_IGNORE_MAYBE_UNINITIALIZED_END      \

    _Pragma ("GCC diagnostic pop")

#else

# define YY_INITIAL_VALUE(Value) Value

#endif

#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN

# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN

# define YY_IGNORE_MAYBE_UNINITIALIZED_END

#endif

#ifndef YY_INITIAL_VALUE

# define YY_INITIAL_VALUE(Value) /* Nothing. */

#endif

#if defined __cplusplus && defined __GNUC__ && ! defined __ICC && 6 <= __GNUC__

# define YY_IGNORE_USELESS_CAST_BEGIN                          \

    _Pragma ("GCC diagnostic push")                            \

    _Pragma ("GCC diagnostic ignored \"-Wuseless-cast\"")

# define YY_IGNORE_USELESS_CAST_END            \

    _Pragma ("GCC diagnostic pop")

#endif

#ifndef YY_IGNORE_USELESS_CAST_BEGIN

# define YY_IGNORE_USELESS_CAST_BEGIN

# define YY_IGNORE_USELESS_CAST_END

#endif

#define YY_ASSERT(E) ((void) (0 && (E)))

#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 EXIT_SUCCESS

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

      /* Use EXIT_SUCCESS as a witness for stdlib.h.  */

#     ifndef EXIT_SUCCESS

#      define EXIT_SUCCESS 0

#     endif

#    endif

#   endif

#  endif

# endif

# ifdef YYSTACK_ALLOC

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

#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (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 EXIT_SUCCESS \

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

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

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

#   ifndef EXIT_SUCCESS

#    define EXIT_SUCCESS 0

#   endif

#  endif

#  ifndef YYMALLOC

#   define YYMALLOC malloc

#   if ! defined malloc && ! defined EXIT_SUCCESS

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

#   endif

#  endif

#  ifndef YYFREE

#   define YYFREE free

#   if ! defined free && ! defined EXIT_SUCCESS

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

#   endif

#  endif

# endif

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

#if (! defined yyoverflow \

     && (! defined __cplusplus \

         || (defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL \

             && defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))

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

union yyalloc

{

  yy_state_t yyss_alloc;

  YYSTYPE yyvs_alloc;

  YYLTYPE yyls_alloc;

};

/* The size of the maximum gap between one aligned stack and the next.  */

# define YYSTACK_GAP_MAXIMUM (YYSIZEOF (union yyalloc) - 1)

/* The size of an array large to enough to hold all stacks, each with

   N elements.  */

# define YYSTACK_BYTES(N) \

     ((N) * (YYSIZEOF (yy_state_t) + YYSIZEOF (YYSTYPE) \

             + YYSIZEOF (YYLTYPE)) \

      + 2 * YYSTACK_GAP_MAXIMUM)

# define YYCOPY_NEEDED 1

/* 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                                                                  \

      {                                                                 \

        YYPTRDIFF_T yynewbytes;                                         \

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

        Stack = &yyptr->Stack_alloc;                                    \

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

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

      }                                                                 \

    while (0)

#endif

#if defined YYCOPY_NEEDED && YYCOPY_NEEDED

/* Copy COUNT objects from SRC to DST.  The source and destination do

   not overlap.  */

# ifndef YYCOPY

#  if defined __GNUC__ && 1 < __GNUC__

#   define YYCOPY(Dst, Src, Count) \

      __builtin_memcpy (Dst, Src, YY_CAST (YYSIZE_T, (Count)) * sizeof (*(Src)))

#  else

#   define YYCOPY(Dst, Src, Count)              \

      do                                        \

        {                                       \

          YYPTRDIFF_T yyi;                      \

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

            (Dst)[yyi] = (Src)[yyi];            \

        }                                       \

      while (0)

#  endif

# endif

#endif /* !YYCOPY_NEEDED */

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

#define YYFINAL  2

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

#define YYLAST   7

/* YYNTOKENS -- Number of terminals.  */

#define YYNTOKENS  6

/* YYNNTS -- Number of nonterminals.  */

#define YYNNTS  6

/* YYNRULES -- Number of rules.  */

#define YYNRULES  9

/* YYNSTATES -- Number of states.  */

#define YYNSTATES  13

#define YYUNDEFTOK  2

#define YYMAXUTOK   260

/* YYTRANSLATE(TOKEN-NUM) -- Symbol number corresponding to TOKEN-NUM

   as returned by yylex, with out-of-bounds checking.  */

#define YYTRANSLATE(YYX)                                                \

  (0 <= (YYX) && (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)

/* YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to TOKEN-NUM

   as returned by yylex.  */

static const yytype_int8 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

};

#if YYDEBUG

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

static const yytype_int8 yyrline[] =

{

       0,    92,    92,    93,    94,    97,   100,   106,   111,   121

};

#endif

#if YYDEBUG || YYERROR_VERBOSE || 1

/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.

   First, the terminals, then, starting at YYNTOKENS, nonterminals.  */

static const char *const yytname[] =

{

  "\"end of file\"", "error", "$undefined", "\"alphanumeric\"",

  "\"end of line\"", "ERROR", "$accept", "input", "edge", "endpoints",

  "edgeid", "weight", YY_NULLPTR

};

#endif

# ifdef YYPRINT

/* YYTOKNUM[NUM] -- (External) token number corresponding to the

   (internal) symbol number NUM (which must be that of a token).  */

static const yytype_int16 yytoknum[] =

{

       0,   256,   257,   258,   259,   260

};

# endif

#define YYPACT_NINF (-3)

#define yypact_value_is_default(Yyn) \

  ((Yyn) == YYPACT_NINF)

#define YYTABLE_NINF (-1)

#define yytable_value_is_error(Yyn) \

  0

  /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing

     STATE-NUM.  */

static const yytype_int8 yypact[] =

{

      -3,     0,    -3,    -3,    -3,    -3,    -2,     2,    -3,    -3,

       3,    -3,    -3

};

  /* YYDEFACT[STATE-NUM] -- Default reduction number in state STATE-NUM.

     Performed when YYTABLE does not specify something else to do.  Zero

     means the default is an error.  */

static const yytype_int8 yydefact[] =

{

       2,     0,     1,     8,     3,     4,     0,     0,     9,     5,

       0,     7,     6

};

  /* YYPGOTO[NTERM-NUM].  */

static const yytype_int8 yypgoto[] =

{

      -3,    -3,    -3,    -3,    -1,    -3

};

  /* YYDEFGOTO[NTERM-NUM].  */

static const yytype_int8 yydefgoto[] =

{

      -1,     1,     5,     6,     7,    10

};

  /* YYTABLE[YYPACT[STATE-NUM]] -- What to do in state STATE-NUM.  If

     positive, shift that token.  If negative, reduce the rule whose

     number is the opposite.  If YYTABLE_NINF, syntax error.  */

static const yytype_int8 yytable[] =

{

       2,     8,     9,     3,     4,     3,    11,    12

};

static const yytype_int8 yycheck[] =

{

       0,     3,     4,     3,     4,     3,     7,     4

};

  /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing

     symbol of state STATE-NUM.  */

static const yytype_int8 yystos[] =

{

       0,     7,     0,     3,     4,     8,     9,    10,     3,     4,

      11,    10,     4

};

  /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */

static const yytype_int8 yyr1[] =

{

       0,     6,     7,     7,     7,     8,     8,     9,    10,    11

};

  /* YYR2[YYN] -- Number of symbols on the right hand side of rule YYN.  */

static const yytype_int8 yyr2[] =

{

       0,     2,     0,     2,     2,     2,     3,     2,     1,     1

};

#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

#define YYRECOVERING()  (!!yyerrstatus)

#define YYBACKUP(Token, Value)                                    \

  do                                                              \

    if (yychar == YYEMPTY)                                        \

      {                                                           \

        yychar = (Token);                                         \

        yylval = (Value);                                         \

        YYPOPSTACK (yylen);                                       \

        yystate = *yyssp;                                         \

        goto yybackup;                                            \

      }                                                           \

    else                                                          \

      {                                                           \

        yyerror (&yylloc, context, YY_("syntax error: cannot back up")); \

        YYERROR;                                                  \

      }                                                           \

  while (0)

/* Error token number */

#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).  */

#ifndef YYLLOC_DEFAULT

# define YYLLOC_DEFAULT(Current, Rhs, N)                                \

    do                                                                  \

      if (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 (0)

#endif

#define YYRHSLOC(Rhs, K) ((Rhs)[K])

/* 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 (0)

/* 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 defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL

/* Print *YYLOCP on YYO.  Private, do not rely on its existence. */

YY_ATTRIBUTE_UNUSED

static int

yy_location_print_ (FILE *yyo, YYLTYPE const * const yylocp)

{

  int res = 0;

  int end_col = 0 != yylocp->last_column ? yylocp->last_column - 1 : 0;

  if (0 <= yylocp->first_line)

    {

      res += YYFPRINTF (yyo, "%d", yylocp->first_line);

      if (0 <= yylocp->first_column)

        res += YYFPRINTF (yyo, ".%d", yylocp->first_column);

    }

  if (0 <= yylocp->last_line)

    {

      if (yylocp->first_line < yylocp->last_line)

        {

          res += YYFPRINTF (yyo, "-%d", yylocp->last_line);

          if (0 <= end_col)

            res += YYFPRINTF (yyo, ".%d", end_col);

        }

      else if (0 <= end_col && yylocp->first_column < end_col)

        res += YYFPRINTF (yyo, "-%d", end_col);

    }

  return res;

 }

#  define YY_LOCATION_PRINT(File, Loc)          \

  yy_location_print_ (File, &(Loc))

# else

#  define YY_LOCATION_PRINT(File, Loc) ((void) 0)

# endif

#endif

# define YY_SYMBOL_PRINT(Title, Type, Value, Location)                    \

do {                                                                      \

  if (yydebug)                                                            \

    {                                                                     \

      YYFPRINTF (stderr, "%s ", Title);                                   \

      yy_symbol_print (stderr,                                            \

                  Type, Value, Location, context); \

      YYFPRINTF (stderr, "\n");                                           \

    }                                                                     \

} while (0)

/*-----------------------------------.

| Print this symbol's value on YYO.  |

`-----------------------------------*/

static void

yy_symbol_value_print (FILE *yyo, int yytype, YYSTYPE const * const yyvaluep, YYLTYPE const * const yylocationp, igraph_i_ncol_parsedata_t* context)

{

  FILE *yyoutput = yyo;

  YYUSE (yyoutput);

  YYUSE (yylocationp);

  YYUSE (context);

  if (!yyvaluep)

    return;

# ifdef YYPRINT

  if (yytype < YYNTOKENS)

    YYPRINT (yyo, yytoknum[yytype], *yyvaluep);

# endif

  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN

  YYUSE (yytype);

  YY_IGNORE_MAYBE_UNINITIALIZED_END

}

/*---------------------------.

| Print this symbol on YYO.  |

`---------------------------*/

static void

yy_symbol_print (FILE *yyo, int yytype, YYSTYPE const * const yyvaluep, YYLTYPE const * const yylocationp, igraph_i_ncol_parsedata_t* context)

{

  YYFPRINTF (yyo, "%s %s (",

             yytype < YYNTOKENS ? "token" : "nterm", yytname[yytype]);

  YY_LOCATION_PRINT (yyo, *yylocationp);

  YYFPRINTF (yyo, ": ");

  yy_symbol_value_print (yyo, yytype, yyvaluep, yylocationp, context);

  YYFPRINTF (yyo, ")");

}

/*------------------------------------------------------------------.

| yy_stack_print -- Print the state stack from its BOTTOM up to its |

| TOP (included).                                                   |

`------------------------------------------------------------------*/

static void

yy_stack_print (yy_state_t *yybottom, yy_state_t *yytop)

{

  YYFPRINTF (stderr, "Stack now");

  for (; yybottom <= yytop; yybottom++)

    {

      int yybot = *yybottom;

      YYFPRINTF (stderr, " %d", yybot);

    }

  YYFPRINTF (stderr, "\n");

}

# define YY_STACK_PRINT(Bottom, Top)                            \

do {                                                            \

  if (yydebug)                                                  \

    yy_stack_print ((Bottom), (Top));                           \

} while (0)

/*------------------------------------------------.

| Report that the YYRULE is going to be reduced.  |

`------------------------------------------------*/

static void

yy_reduce_print (yy_state_t *yyssp, YYSTYPE *yyvsp, YYLTYPE *yylsp, int yyrule, igraph_i_ncol_parsedata_t* context)

{

  int yylno = yyrline[yyrule];

  int yynrhs = yyr2[yyrule];

  int yyi;

  YYFPRINTF (stderr, "Reducing stack by rule %d (line %d):\n",

             yyrule - 1, yylno);

  /* The symbols being reduced.  */

  for (yyi = 0; yyi < yynrhs; yyi++)

    {

      YYFPRINTF (stderr, "   $%d = ", yyi + 1);

      yy_symbol_print (stderr,

                       yystos[+yyssp[yyi + 1 - yynrhs]],

                       &yyvsp[(yyi + 1) - (yynrhs)]

                       , &(yylsp[(yyi + 1) - (yynrhs)])                       , context);

      YYFPRINTF (stderr, "\n");

    }

}

# define YY_REDUCE_PRINT(Rule)          \

do {                                    \

  if (yydebug)                          \

    yy_reduce_print (yyssp, yyvsp, yylsp, Rule, context); \

} while (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(S) (YY_CAST (YYPTRDIFF_T, strlen (S)))

#  else

/* Return the length of YYSTR.  */

static YYPTRDIFF_T

yystrlen (const char *yystr)

{

  YYPTRDIFF_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.  */

static char *

yystpcpy (char *yydest, const char *yysrc)

{

  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 YYPTRDIFF_T

yytnamerr (char *yyres, const char *yystr)

{

  if (*yystr == '"')

    {

      YYPTRDIFF_T yyn = 0;

      char const *yyp = yystr;

      for (;;)

        switch (*++yyp)

          {

          case '\'':

          case ',':

            goto do_not_strip_quotes;

          case '\\':

            if (*++yyp != '\\')

              goto do_not_strip_quotes;

            else

              goto append;

          append:

          default:

            if (yyres)

              yyres[yyn] = *yyp;

            yyn++;

            break;

          case '"':

            if (yyres)

              yyres[yyn] = '\0';

            return yyn;

          }

    do_not_strip_quotes: ;

    }

  if (yyres)

    return yystpcpy (yyres, yystr) - yyres;

  else

    return yystrlen (yystr);

}

# endif

/* Copy into *YYMSG, which is of size *YYMSG_ALLOC, an error message

   about the unexpected token YYTOKEN for the state stack whose top is

   YYSSP.

   Return 0 if *YYMSG was successfully written.  Return 1 if *YYMSG is

   not large enough to hold the message.  In that case, also set

   *YYMSG_ALLOC to the required number of bytes.  Return 2 if the

   required number of bytes is too large to store.  */

static int

yysyntax_error (YYPTRDIFF_T *yymsg_alloc, char **yymsg,

                yy_state_t *yyssp, int yytoken)

{

  enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };

  /* Internationalized format string. */

  const char *yyformat = YY_NULLPTR;

  /* Arguments of yyformat: reported tokens (one for the "unexpected",

     one per "expected"). */

  char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];

  /* Actual size of YYARG. */

  int yycount = 0;

  /* Cumulated lengths of YYARG.  */

  YYPTRDIFF_T yysize = 0;

  /* There are many possibilities here to consider:

     - If this state is a consistent state with a default action, then

       the only way this function was invoked is if the default action

       is an error action.  In that case, don't check for expected

       tokens because there are none.

     - The only way there can be no lookahead present (in yychar) is if

       this state is a consistent state with a default action.  Thus,

       detecting the absence of a lookahead is sufficient to determine

       that there is no unexpected or expected token to report.  In that

       case, just report a simple "syntax error".

     - Don't assume there isn't a lookahead just because this state is a

       consistent state with a default action.  There might have been a

       previous inconsistent state, consistent state with a non-default

       action, or user semantic action that manipulated yychar.

     - Of course, the expected token list depends on states to have

       correct lookahead information, and it depends on the parser not

       to perform extra reductions after fetching a lookahead from the

       scanner and before detecting a syntax error.  Thus, state merging

       (from LALR or IELR) and default reductions corrupt the expected

       token list.  However, the list is correct for canonical LR with

       one exception: it will still contain any token that will not be

       accepted due to an error action in a later state.

  */

  if (yytoken != YYEMPTY)

    {

      int yyn = yypact[+*yyssp];

      YYPTRDIFF_T yysize0 = yytnamerr (YY_NULLPTR, yytname[yytoken]);

      yysize = yysize0;

      yyarg[yycount++] = yytname[yytoken];

      if (!yypact_value_is_default (yyn))

        {

          /* Start YYX at -YYN if negative to avoid negative indexes in

             YYCHECK.  In other words, skip the first -YYN actions for

             this state because they are default actions.  */

          int yyxbegin = yyn < 0 ? -yyn : 0;

          /* Stay within bounds of both yycheck and yytname.  */

          int yychecklim = YYLAST - yyn + 1;

          int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;

          int yyx;

          for (yyx = yyxbegin; yyx < yyxend; ++yyx)

            if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR

                && !yytable_value_is_error (yytable[yyx + yyn]))

              {

                if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)

                  {

                    yycount = 1;

                    yysize = yysize0;

                    break;

                  }

                yyarg[yycount++] = yytname[yyx];

                {

                  YYPTRDIFF_T yysize1

                    = yysize + yytnamerr (YY_NULLPTR, yytname[yyx]);

                  if (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM)

                    yysize = yysize1;

                  else

                    return 2;

                }

              }

        }

    }

  switch (yycount)

    {

# define YYCASE_(N, S)                      \

      case N:                               \

        yyformat = S;                       \

      break

    default: /* Avoid compiler warnings. */

      YYCASE_(0, YY_("syntax error"));

      YYCASE_(1, YY_("syntax error, unexpected %s"));