Sat Nov 1 06:28:23 2008

Asterisk developer's documentation

---

ast_expr2.c

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/* A Bison parser, made by GNU Bison 2.1a.  */

/* Skeleton parser for Yacc-like parsing with Bison,
   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 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., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, 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.  */

/* 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 "2.1a"

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

/* Pure parsers.  */
#define YYPURE 1

/* Using locations.  */
#define YYLSP_NEEDED 1

/* Substitute the variable and function names.  */
#define yyparse ast_yyparse
#define yylex   ast_yylex
#define yyerror ast_yyerror
#define yylval  ast_yylval
#define yychar  ast_yychar
#define yydebug ast_yydebug
#define yynerrs ast_yynerrs
#define yylloc ast_yylloc

/* Tokens.  */
#ifndef YYTOKENTYPE
# define YYTOKENTYPE
   /* Put the tokens into the symbol table, so that GDB and other debuggers
      know about them.  */
   enum yytokentype {
     TOK_COLONCOLON = 258,
     TOK_COND = 259,
     TOK_OR = 260,
     TOK_AND = 261,
     TOK_NE = 262,
     TOK_LE = 263,
     TOK_GE = 264,
     TOK_LT = 265,
     TOK_GT = 266,
     TOK_EQ = 267,
     TOK_MINUS = 268,
     TOK_PLUS = 269,
     TOK_MOD = 270,
     TOK_DIV = 271,
     TOK_MULT = 272,
     TOK_COMPL = 273,
     TOK_EQTILDE = 274,
     TOK_COLON = 275,
     TOK_LP = 276,
     TOK_RP = 277,
     TOKEN = 278
   };
#endif
/* Tokens.  */
#define TOK_COLONCOLON 258
#define TOK_COND 259
#define TOK_OR 260
#define TOK_AND 261
#define TOK_NE 262
#define TOK_LE 263
#define TOK_GE 264
#define TOK_LT 265
#define TOK_GT 266
#define TOK_EQ 267
#define TOK_MINUS 268
#define TOK_PLUS 269
#define TOK_MOD 270
#define TOK_DIV 271
#define TOK_MULT 272
#define TOK_COMPL 273
#define TOK_EQTILDE 274
#define TOK_COLON 275
#define TOK_LP 276
#define TOK_RP 277
#define TOKEN 278




/* Copy the first part of user declarations.  */
#line 1 "ast_expr2.y"

/* Written by Pace Willisson (pace@blitz.com) 
 * and placed in the public domain.
 *
 * Largely rewritten by J.T. Conklin (jtc@wimsey.com)
 *
 * And then overhauled twice by Steve Murphy (murf@digium.com)
 * to add double-quoted strings, allow mult. spaces, improve
 * error messages, and then to fold in a flex scanner for the 
 * yylex operation.
 *
 * $FreeBSD: src/bin/expr/expr.y,v 1.16 2000/07/22 10:59:36 se Exp $
 */

#include "asterisk.h"

#if !defined(STANDALONE_AEL)
ASTERISK_FILE_VERSION(__FILE__, "$Revision: 144924 $")
#endif

#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <locale.h>
#include <unistd.h>
#include <ctype.h>
#if !defined(SOLARIS) && !defined(__CYGWIN__)
/* #include <err.h> */
#else
#define quad_t int64_t
#endif
#include <errno.h>
#include <regex.h>
#include <limits.h>

#include "asterisk/ast_expr.h"
#include "asterisk/logger.h"

#if defined(LONG_LONG_MIN) && !defined(QUAD_MIN)
#define QUAD_MIN LONG_LONG_MIN
#endif
#if defined(LONG_LONG_MAX) && !defined(QUAD_MAX)
#define QUAD_MAX LONG_LONG_MAX
#endif

#  if ! defined(QUAD_MIN)
#   define QUAD_MIN     (-0x7fffffffffffffffLL-1)
#  endif
#  if ! defined(QUAD_MAX)
#   define QUAD_MAX     (0x7fffffffffffffffLL)
#  endif

#define YYPARSE_PARAM parseio
#define YYLEX_PARAM ((struct parse_io *)parseio)->scanner
#define YYERROR_VERBOSE 1
extern char extra_error_message[4095];
extern int extra_error_message_supplied;

enum valtype {
   AST_EXPR_integer, AST_EXPR_numeric_string, AST_EXPR_string
} ;

#ifdef STANDALONE
void ast_log(int level, const char *file, int line, const char *function, const char *fmt, ...) __attribute__ ((format (printf,5,6)));
#endif

struct val {
   enum valtype type;
   union {
      char *s;
      quad_t i;
   } u;
} ;

typedef void *yyscan_t;

struct parse_io
{
   char *string;
   struct val *val;
   yyscan_t scanner;
};
 
static int     chk_div __P((quad_t, quad_t));
static int     chk_minus __P((quad_t, quad_t, quad_t));
static int     chk_plus __P((quad_t, quad_t, quad_t));
static int     chk_times __P((quad_t, quad_t, quad_t));
static void    free_value __P((struct val *));
static int     is_zero_or_null __P((struct val *));
static int     isstring __P((struct val *));
static struct val *make_integer __P((quad_t));
static struct val *make_str __P((const char *));
static struct val *op_and __P((struct val *, struct val *));
static struct val *op_colon __P((struct val *, struct val *));
static struct val *op_eqtilde __P((struct val *, struct val *));
static struct val *op_div __P((struct val *, struct val *));
static struct val *op_eq __P((struct val *, struct val *));
static struct val *op_ge __P((struct val *, struct val *));
static struct val *op_gt __P((struct val *, struct val *));
static struct val *op_le __P((struct val *, struct val *));
static struct val *op_lt __P((struct val *, struct val *));
static struct val *op_cond __P((struct val *, struct val *, struct val *));
static struct val *op_minus __P((struct val *, struct val *));
static struct val *op_negate __P((struct val *));
static struct val *op_compl __P((struct val *));
static struct val *op_ne __P((struct val *, struct val *));
static struct val *op_or __P((struct val *, struct val *));
static struct val *op_plus __P((struct val *, struct val *));
static struct val *op_rem __P((struct val *, struct val *));
static struct val *op_times __P((struct val *, struct val *));
static quad_t     to_integer __P((struct val *));
static void    to_string __P((struct val *));

/* uh, if I want to predeclare yylex with a YYLTYPE, I have to predeclare the yyltype... sigh */
typedef struct yyltype
{
  int first_line;
  int first_column;

  int last_line;
  int last_column;
} yyltype;

# define YYLTYPE yyltype
# define YYLTYPE_IS_TRIVIAL 1

/* we will get warning about no prototype for yylex! But we can't
   define it here, we have no definition yet for YYSTYPE. */

int      ast_yyerror(const char *,YYLTYPE *, struct parse_io *);
 
/* I wanted to add args to the yyerror routine, so I could print out
   some useful info about the error. Not as easy as it looks, but it
   is possible. */
#define ast_yyerror(x) ast_yyerror(x,&yyloc,parseio)
#define DESTROY(x) {if((x)->type == AST_EXPR_numeric_string || (x)->type == AST_EXPR_string) free((x)->u.s); (x)->u.s = 0; free(x);}


/* 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

#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
typedef union YYSTYPE
#line 147 "ast_expr2.y"
{
   struct val *val;
}
/* Line 198 of yacc.c.  */
#line 283 "ast_expr2.c"
   YYSTYPE;
# define yystype YYSTYPE /* obsolescent; will be withdrawn */
# define YYSTYPE_IS_DECLARED 1
# define YYSTYPE_IS_TRIVIAL 1
#endif

#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
typedef struct YYLTYPE
{
  int first_line;
  int first_column;
  int last_line;
  int last_column;
} YYLTYPE;
# define yyltype YYLTYPE /* obsolescent; will be withdrawn */
# define YYLTYPE_IS_DECLARED 1
# define YYLTYPE_IS_TRIVIAL 1
#endif


/* Copy the second part of user declarations.  */
#line 151 "ast_expr2.y"

extern int     ast_yylex __P((YYSTYPE *, YYLTYPE *, yyscan_t));


/* Line 221 of yacc.c.  */
#line 311 "ast_expr2.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 i)
#else
static int
YYID (i)
    int i;
#endif
{
  return i;
}
#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
#  ifdef __cplusplus
extern "C" {
#  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
#  ifdef __cplusplus
}
#  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
{
  yytype_int16 yyss;
  YYSTYPE yyvs;
    YYLTYPE yyls;
};

/* 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) + sizeof (YYLTYPE)) \
      + 2 * 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)             \
    do                           \
      {                          \
   YYSIZE_T yynewbytes;                \
   YYCOPY (&yyptr->Stack, Stack, yysize);          \
   Stack = &yyptr->Stack;                 \
   yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
   yyptr += yynewbytes / sizeof (*yyptr);          \
      }                          \
    while (YYID (0))

#endif

/* YYFINAL -- State number of the termination state.  */
#define YYFINAL  10
/* YYLAST -- Last index in YYTABLE.  */
#define YYLAST   140

/* YYNTOKENS -- Number of terminals.  */
#define YYNTOKENS  24
/* YYNNTS -- Number of nonterminals.  */
#define YYNNTS  3
/* YYNRULES -- Number of rules.  */
#define YYNRULES  23
/* YYNRULES -- Number of states.  */
#define YYNSTATES  46

/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
#define YYUNDEFTOK  2
#define YYMAXUTOK   278

#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,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     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,    21,    22,    23
};

#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,     6,     8,    12,    16,    20,    24,
      28,    32,    36,    40,    44,    48,    52,    55,    58,    62,
      66,    70,    74,    78
};

/* YYRHS -- A `-1'-separated list of the rules' RHS.  */
static const yytype_int8 yyrhs[] =
{
      25,     0,    -1,    26,    -1,    -1,    23,    -1,    21,    26,
      22,    -1,    26,     5,    26,    -1,    26,     6,    26,    -1,
      26,    12,    26,    -1,    26,    11,    26,    -1,    26,    10,
      26,    -1,    26,     9,    26,    -1,    26,     8,    26,    -1,
      26,     7,    26,    -1,    26,    14,    26,    -1,    26,    13,
      26,    -1,    13,    26,    -1,    18,    26,    -1,    26,    17,
      26,    -1,    26,    16,    26,    -1,    26,    15,    26,    -1,
      26,    20,    26,    -1,    26,    19,    26,    -1,    26,     4,
      26,     3,    26,    -1
};

/* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
static const yytype_uint16 yyrline[] =
{
       0,   175,   175,   183,   190,   191,   195,   199,   203,   207,
     211,   215,   219,   223,   227,   231,   235,   239,   243,   247,
     251,   255,   259,   263
};
#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", "TOK_COLONCOLON", "TOK_COND", "TOK_OR",
  "TOK_AND", "TOK_NE", "TOK_LE", "TOK_GE", "TOK_LT", "TOK_GT", "TOK_EQ",
  "TOK_MINUS", "TOK_PLUS", "TOK_MOD", "TOK_DIV", "TOK_MULT", "TOK_COMPL",
  "TOK_EQTILDE", "TOK_COLON", "TOK_LP", "TOK_RP", "TOKEN", "$accept",
  "start", "expr", 0
};
#endif

# ifdef YYPRINT
/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
   token YYLEX-NUM.  */
static const yytype_uint16 yytoknum[] =
{
       0,   256,   257,   258,   259,   260,   261,   262,   263,   264,
     265,   266,   267,   268,   269,   270,   271,   272,   273,   274,
     275,   276,   277,   278
};
# endif

/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
static const yytype_uint8 yyr1[] =
{
       0,    24,    25,    25,    26,    26,    26,    26,    26,    26,
      26,    26,    26,    26,    26,    26,    26,    26,    26,    26,
      26,    26,    26,    26
};

/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
static const yytype_uint8 yyr2[] =
{
       0,     2,     1,     0,     1,     3,     3,     3,     3,     3,
       3,     3,     3,     3,     3,     3,     2,     2,     3,     3,
       3,     3,     3,     5
};

/* 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 yytype_uint8 yydefact[] =
{
       3,     0,     0,     0,     4,     0,     2,    16,    17,     0,
       1,     0,     0,     0,     0,     0,     0,     0,     0,     0,
       0,     0,     0,     0,     0,     0,     0,     5,     0,     6,
       7,    13,    12,    11,    10,     9,     8,    15,    14,    20,
      19,    18,    22,    21,     0,    23
};

/* YYDEFGOTO[NTERM-NUM].  */
static const yytype_int8 yydefgoto[] =
{
      -1,     5,     6
};

/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
   STATE-NUM.  */
#define YYPACT_NINF -13
static const yytype_int8 yypact[] =
{
     109,   109,   109,   109,   -13,     6,    59,   106,   106,    22,
     -13,   109,   109,   109,   109,   109,   109,   109,   109,   109,
     109,   109,   109,   109,   109,   109,   109,   -13,    42,    90,
     104,   120,   120,   120,   120,   120,   120,   -12,   -12,   106,
     106,   106,   -13,   -13,   109,    75
};

/* YYPGOTO[NTERM-NUM].  */
static const yytype_int8 yypgoto[] =
{
     -13,   -13,    -1
};

/* 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 yytype_uint8 yytable[] =
{
       7,     8,     9,    22,    23,    24,    10,    25,    26,     0,
      28,    29,    30,    31,    32,    33,    34,    35,    36,    37,
      38,    39,    40,    41,    42,    43,    11,    12,    13,    14,
      15,    16,    17,    18,    19,    20,    21,    22,    23,    24,
       0,    25,    26,    45,    27,    44,    11,    12,    13,    14,
      15,    16,    17,    18,    19,    20,    21,    22,    23,    24,
       0,    25,    26,    11,    12,    13,    14,    15,    16,    17,
      18,    19,    20,    21,    22,    23,    24,     0,    25,    26,
      12,    13,    14,    15,    16,    17,    18,    19,    20,    21,
      22,    23,    24,     0,    25,    26,    13,    14,    15,    16,
      17,    18,    19,    20,    21,    22,    23,    24,     0,    25,
      26,    14,    15,    16,    17,    18,    19,    20,    21,    22,
      23,    24,     1,    25,    26,    25,    26,     2,     0,     0,
       3,     0,     4,    20,    21,    22,    23,    24,     0,    25,
      26
};

static const yytype_int8 yycheck[] =
{
       1,     2,     3,    15,    16,    17,     0,    19,    20,    -1,
      11,    12,    13,    14,    15,    16,    17,    18,    19,    20,
      21,    22,    23,    24,    25,    26,     4,     5,     6,     7,
       8,     9,    10,    11,    12,    13,    14,    15,    16,    17,
      -1,    19,    20,    44,    22,     3,     4,     5,     6,     7,
       8,     9,    10,    11,    12,    13,    14,    15,    16,    17,
      -1,    19,    20,     4,     5,     6,     7,     8,     9,    10,
      11,    12,    13,    14,    15,    16,    17,    -1,    19,    20,
       5,     6,     7,     8,     9,    10,    11,    12,    13,    14,
      15,    16,    17,    -1,    19,    20,     6,     7,     8,     9,
      10,    11,    12,    13,    14,    15,    16,    17,    -1,    19,
      20,     7,     8,     9,    10,    11,    12,    13,    14,    15,
      16,    17,    13,    19,    20,    19,    20,    18,    -1,    -1,
      21,    -1,    23,    13,    14,    15,    16,    17,    -1,    19,
      20
};

/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
   symbol of state STATE-NUM.  */
static const yytype_uint8 yystos[] =
{
       0,    13,    18,    21,    23,    25,    26,    26,    26,    26,
       0,     4,     5,     6,     7,     8,     9,    10,    11,    12,
      13,    14,    15,    16,    17,    19,    20,    22,    26,    26,
      26,    26,    26,    26,    26,    26,    26,    26,    26,    26,
      26,    26,    26,    26,     3,    26
};

#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 (&yylval, &yylloc, YYLEX_PARAM)
#else
# define YYLEX yylex (&yylval, &yylloc)
#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, Location); \
      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, const YYSTYPE * const yyvaluep, const YYLTYPE * const yylocationp)
#else
static void
yy_symbol_value_print (yyoutput, yytype, yyvaluep, yylocationp)
    FILE *yyoutput;
    int yytype;
    const YYSTYPE * const yyvaluep;
    const YYLTYPE * const yylocationp;
#endif
{
  if (!yyvaluep)
    return;
  YYUSE (yylocationp);
# 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, const YYSTYPE * const yyvaluep, const YYLTYPE * const yylocationp)
#else
static void
yy_symbol_print (yyoutput, yytype, yyvaluep, yylocationp)
    FILE *yyoutput;
    int yytype;
    const YYSTYPE * const yyvaluep;
    const YYLTYPE * const yylocationp;
#endif
{
  if (yytype < YYNTOKENS)
    YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
  else
    YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);

  YY_LOCATION_PRINT (yyoutput, *yylocationp);
  YYFPRINTF (yyoutput, ": ");
  yy_symbol_value_print (yyoutput, yytype, yyvaluep, yylocationp);
  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, YYLTYPE *yylsp, int yyrule)
#else
static void
yy_reduce_print (yyvsp, yylsp, yyrule
         )
    YYSTYPE *yyvsp;
    YYLTYPE *yylsp;
    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)])
             , &(yylsp[(yyi + 1) - (yynrhs)])             );
      fprintf (stderr, "\n");
    }
}

# define YY_REDUCE_PRINT(Rule)      \
do {              \
  if (yydebug)          \
    yy_reduce_print (yyvsp, yylsp, 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 == '"')
    {
      size_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;
       /* Fall through.  */
     default:
       if (yyres)
         yyres[yyn] = *yyp;
       yyn++;
       break;

     case '"':
       if (yyres)
         yyres[yyn] =