path: root/src/map/magic-interpreter-parser.c

/* A Bison parser, made by GNU Bison 2.3.  */

/* 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 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, 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 "2.3"

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

/* Pure parsers.  */
#define YYPURE 0

/* Using locations.  */
#define YYLSP_NEEDED 1

/* Substitute the variable and function names.  */
#define yyparse magic_frontend_parse
#define yylex   magic_frontend_lex
#define yyerror magic_frontend_error
#define yylval  magic_frontend_lval
#define yychar  magic_frontend_char
#define yydebug magic_frontend_debug
#define yynerrs magic_frontend_nerrs
#define yylloc magic_frontend_lloc

/* Tokens.  */
#ifndef YYTOKENTYPE
# define YYTOKENTYPE
   /* Put the tokens into the symbol table, so that GDB and other debuggers
    * know about them.  */
enum yytokentype
{
    INT = 258,
    STRING = 259,
    ID = 260,
    DIR = 261,
    CONST = 262,
    PROCEDURE = 263,
    CALL = 264,
    SILENT = 265,
    LOCAL = 266,
    NONMAGIC = 267,
    SHL = 268,
    SHR = 269,
    EQ = 270,
    NEQ = 271,
    GTE = 272,
    LTE = 273,
    ANDAND = 274,
    OROR = 275,
    SCRIPT_DATA = 276,
    TO = 277,
    TOWARDS = 278,
    TELEPORT_ANCHOR = 279,
    SPELL = 280,
    LET = 281,
    IN = 282,
    END = 283,
    DARROW = 284,
    STRING_TY = 285,
    REQUIRE = 286,
    CATALYSTS = 287,
    COMPONENTS = 288,
    MANA = 289,
    CASTTIME = 290,
    SKIP = 291,
    ABORT = 292,
    BREAK = 293,
    EFFECT = 294,
    ATEND = 295,
    ATTRIGGER = 296,
    PC_F = 297,
    NPC_F = 298,
    MOB_F = 299,
    ENTITY_F = 300,
    TARGET_F = 301,
    IF = 302,
    THEN = 303,
    ELSE = 304,
    FOREACH = 305,
    FOR = 306,
    DO = 307,
    SLEEP = 308,
    OR = 309
};
#endif
/* Tokens.  */
#define INT 258
#define STRING 259
#define ID 260
#define DIR 261
#define CONST 262
#define PROCEDURE 263
#define CALL 264
#define SILENT 265
#define LOCAL 266
#define NONMAGIC 267
#define SHL 268
#define SHR 269
#define EQ 270
#define NEQ 271
#define GTE 272
#define LTE 273
#define ANDAND 274
#define OROR 275
#define SCRIPT_DATA 276
#define TO 277
#define TOWARDS 278
#define TELEPORT_ANCHOR 279
#define SPELL 280
#define LET 281
#define IN 282
#define END 283
#define DARROW 284
#define STRING_TY 285
#define REQUIRE 286
#define CATALYSTS 287
#define COMPONENTS 288
#define MANA 289
#define CASTTIME 290
#define SKIP 291
#define ABORT 292
#define BREAK 293
#define EFFECT 294
#define ATEND 295
#define ATTRIGGER 296
#define PC_F 297
#define NPC_F 298
#define MOB_F 299
#define ENTITY_F 300
#define TARGET_F 301
#define IF 302
#define THEN 303
#define ELSE 304
#define FOREACH 305
#define FOR 306
#define DO 307
#define SLEEP 308
#define OR 309

/* Copy the first part of user declarations.  */
#line 1 "magic-interpreter-parser.y"

#include "magic-interpreter.h"
#include "magic-expr.h"
#include <stdarg.h>

magic_conf_t magic_conf;

static int intern_id (char *id_name);

static expr_t *fun_expr (char *name, int args_nr, expr_t ** args, int line,
                         int column);

static expr_t *dot_expr (expr_t * lhs, int id);

#define BIN_EXPR(x, name, arg1, arg2, line, column) { expr_t *e[2]; e[0] = arg1; e[1] = arg2; x = fun_expr(name, 2, e, line, column); }

static int failed_flag = 0;

static void magic_frontend_error (const char *msg);

static void fail (int line, int column, char *fmt, ...);

static spell_t *new_spell (spellguard_t * guard);

static spellguard_t *spellguard_implication (spellguard_t * a,
                                             spellguard_t * b);

static spellguard_t *new_spellguard (int ty);

static effect_t *new_effect (int ty);

static effect_t *set_effect_continuation (effect_t * src,
                                          effect_t * continuation);

static void add_spell (spell_t * spell, int line_nr);

static void add_teleport_anchor (teleport_anchor_t * anchor, int line_nr);

static effect_t *op_effect (char *name, int args_nr, expr_t ** args, int line,
                            int column);

int  magic_frontend_lex ();

static void install_proc (proc_t * proc);

static effect_t *call_proc (char *name, int args_nr, expr_t ** args,
                            int line_nr, int column);

static void bind_constant (char *name, val_t * val, int line_nr);

static val_t *find_constant (char *name);

/* 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 74 "magic-interpreter-parser.y"
{
    int  i;
    char *s;
    int  op;
    magic_conf_t *magic_conf;
    val_t value;
    expr_t *expr;
    e_location_t location;
    e_area_t area;
    args_rec_t arg_list;
    struct
    {
        int  letdefs_nr;
        letdef_t *letdefs;
    } letdefs;
    spell_t *spell;
    struct
    {
        int  id, ty;
    } spellarg_def;
    letdef_t vardef;
    spellguard_t *spellguard;
    component_t *components;
    struct
    {
        int  id, count;
    } component;
    effect_t *effect;
    proc_t *proc;
}
/* Line 187 of yacc.c.  */
#line 302 "magic-interpreter-parser.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 216 of yacc.c.  */
#line 327 "magic-interpreter-parser.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
#  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 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  18
/* YYLAST -- Last index in YYTABLE.  */
#define YYLAST   983

/* YYNTOKENS -- Number of terminals.  */
#define YYNTOKENS  75
/* YYNNTS -- Number of nonterminals.  */
#define YYNNTS  32
/* YYNRULES -- Number of rules.  */
#define YYNRULES  111
/* YYNRULES -- Number of states.  */
#define YYNSTATES  252

/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
#define YYUNDEFTOK  2
#define YYMAXUTOK   309

#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, 14, 23, 2,
    73, 74, 12, 10, 16, 11, 17, 13, 2, 2,
    2, 2, 2, 2, 2, 2, 2, 2, 18, 19,
    8, 7, 9, 2, 15, 2, 2, 2, 2, 2,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    2, 21, 2, 22, 24, 2, 2, 2, 2, 2,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    2, 2, 2, 2, 20, 2, 2, 2, 2, 2,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    2, 2, 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, 25, 26, 27, 28, 29, 30, 31, 32,
    33, 34, 35, 36, 37, 38, 39, 40, 41, 42,
    43, 44, 45, 46, 47, 48, 49, 50, 51, 52,
    53, 54, 55, 56, 57, 58, 59, 60, 61, 62,
    63, 64, 65, 66, 67, 68, 69, 70, 71, 72
};

#if YYDEBUG
/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
   YYRHS.  */
static const yytype_uint16 yyprhs[] = {
    0, 0, 3, 4, 8, 9, 12, 13, 15, 17,
    21, 25, 30, 37, 45, 54, 55, 58, 61, 64,
    65, 71, 73, 75, 77, 79, 81, 83, 85, 87,
    91, 95, 99, 103, 107, 111, 115, 119, 123, 127,
    131, 135, 139, 143, 147, 151, 155, 159, 163, 168,
    172, 176, 177, 179, 181, 185, 194, 196, 205, 215,
    217, 222, 224, 228, 232, 234, 238, 242, 246, 251,
    252, 255, 256, 259, 261, 265, 269, 271, 275, 278,
    281, 284, 287, 290, 294, 296, 300, 304, 306, 308,
    310, 312, 314, 316, 318, 320, 322, 326, 329, 332,
    335, 338, 343, 351, 360, 367, 372, 376, 382, 384,
    391, 392
};

/* YYRHS -- A `-1'-separated list of the rules' RHS.  */
static const yytype_int8 yyrhs[] = {
    76, 0, -1, -1, 80, 77, 76, -1, -1, 77,
    19, -1, -1, 79, -1, 5, -1, 79, 16, 5,
    -1, 5, 7, 85, -1, 25, 5, 7, 85, -1,
    42, 5, 18, 85, 7, 85, -1, 26, 5, 73,
    78, 74, 7, 106, -1, 81, 43, 5, 82, 18,
    85, 7, 90, -1, -1, 29, 81, -1, 30, 81,
    -1, 28, 81, -1, -1, 73, 5, 18, 83, 74,
    -1, 60, -1, 48, -1, 6, -1, 3, -1, 4,
    -1, 84, -1, 5, -1, 89, -1, 85, 10, 85,
    -1, 85, 11, 85, -1, 85, 12, 85, -1, 85,
    14, 85, -1, 85, 13, 85, -1, 85, 8, 85,
    -1, 85, 9, 85, -1, 85, 23, 85, -1, 85,
    24, 85, -1, 85, 20, 85, -1, 85, 31, 85,
    -1, 85, 32, 85, -1, 85, 36, 85, -1, 85,
    35, 85, -1, 85, 37, 85, -1, 85, 38, 85,
    -1, 85, 33, 85, -1, 85, 7, 85, -1, 85,
    34, 85, -1, 5, 73, 86, 74, -1, 73, 85,
    74, -1, 85, 17, 5, -1, -1, 87, -1, 85,
    -1, 87, 16, 85, -1, 15, 73, 85, 16, 85,
    16, 85, 74, -1, 88, -1, 88, 15, 10, 73,
    85, 16, 85, 74, -1, 88, 41, 85, 18, 73,
    85, 16, 85, 74, -1, 93, -1, 44, 91, 45,
    93, -1, 77, -1, 91, 92, 77, -1, 5, 7,
    85, -1, 94, -1, 94, 20, 93, -1, 97, 47,
    94, -1, 73, 93, 74, -1, 57, 106, 95, 96,
    -1, -1, 59, 106, -1, -1, 58, 106, -1, 99,
    -1, 97, 72, 97, -1, 73, 98, 74, -1, 97,
    -1, 97, 16, 98, -1, 49, 85, -1, 50, 100,
    -1, 51, 100, -1, 52, 85, -1, 53, 85, -1,
    21, 101, 22, -1, 102, -1, 101, 16, 102, -1,
    3, 12, 103, -1, 103, -1, 4, -1, 3, -1,
    60, -1, 62, -1, 63, -1, 43, -1, 64, -1,
    61, -1, 73, 106, 74, -1, 54, 19, -1, 55,
    19, -1, 46, 19, -1, 56, 19, -1, 5, 7,
    85, 19, -1, 68, 104, 5, 45, 85, 70, 105,
    -1, 69, 5, 7, 85, 40, 85, 70, 105, -1,
    65, 85, 66, 105, 67, 105, -1, 65, 85, 66,
    105, -1, 71, 85, 19, -1, 5, 73, 86, 74,
    19, -1, 39, -1, 27, 5, 73, 86, 74, 19,
    -1, -1, 105, 77, 106, -1
};

/* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
static const yytype_uint16 yyrline[] = {
    0, 213, 213, 214, 220, 221, 227, 228, 232, 238,
    245, 256, 262, 273, 282, 295, 296, 301, 306, 314,
    315, 321, 323, 328, 331, 334, 340, 343, 354, 357,
    359, 361, 363, 365, 367, 369, 371, 373, 375, 377,
    379, 381, 383, 385, 387, 389, 391, 393, 396, 401,
    403, 408, 409, 414, 419, 426, 430, 434, 440, 450,
    452, 461, 465, 474, 487, 489, 498, 500, 502, 513,
    514, 520, 521, 526, 528, 534, 539, 541, 546, 550,
    554, 558, 562, 569, 574, 578, 585, 587, 592, 601,
    606, 608, 610, 612, 614, 616, 621, 623, 625, 627,
    629, 631, 642, 649, 656, 662, 668, 672, 676, 683,
    690, 691
};
#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", "INT", "STRING", "ID", "DIR", "'='",
    "'<'", "'>'", "'+'", "'-'", "'*'", "'/'", "'%'", "'@'", "','", "'.'",
    "':'", "';'", "'|'", "'['", "']'", "'&'", "'^'", "CONST", "PROCEDURE",
    "CALL", "SILENT", "LOCAL", "NONMAGIC", "SHL", "SHR", "EQ", "NEQ", "GTE",
    "LTE", "ANDAND", "OROR", "SCRIPT_DATA", "TO", "TOWARDS",
    "TELEPORT_ANCHOR", "SPELL", "LET", "IN", "END", "DARROW", "STRING_TY",
    "REQUIRE", "CATALYSTS", "COMPONENTS", "MANA", "CASTTIME", "SKIP",
    "ABORT", "BREAK", "EFFECT", "ATEND", "ATTRIGGER", "PC_F", "NPC_F",
    "MOB_F", "ENTITY_F", "TARGET_F", "IF", "THEN", "ELSE", "FOREACH", "FOR",
    "DO", "SLEEP", "OR", "'('", "')'", "$accept", "spellconf", "semicolons",
    "proc_formals_list", "proc_formals_list_ne", "spellconf_option",
    "spell_flags", "argopt", "arg_ty", "value", "expr", "arg_list",
    "arg_list_ne", "location", "area", "spelldef", "defs", "def",
    "spellbody_list", "spellbody", "maybe_trigger", "maybe_end",
    "spellguard", "spellguard_list", "prereq", "items", "item_list", "item",
    "item_name", "selection", "effect", "effect_list", 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, 61, 60, 62,
    43, 45, 42, 47, 37, 64, 44, 46, 58, 59,
    124, 91, 93, 38, 94, 262, 263, 264, 265, 266,
    267, 268, 269, 270, 271, 272, 273, 274, 275, 276,
    277, 278, 279, 280, 281, 282, 283, 284, 285, 286,
    287, 288, 289, 290, 291, 292, 293, 294, 295, 296,
    297, 298, 299, 300, 301, 302, 303, 304, 305, 306,
    307, 308, 309, 40, 41
};
# endif

/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
static const yytype_uint8 yyr1[] = {
    0, 75, 76, 76, 77, 77, 78, 78, 79, 79,
    80, 80, 80, 80, 80, 81, 81, 81, 81, 82,
    82, 83, 83, 84, 84, 84, 85, 85, 85, 85,
    85, 85, 85, 85, 85, 85, 85, 85, 85, 85,
    85, 85, 85, 85, 85, 85, 85, 85, 85, 85,
    85, 86, 86, 87, 87, 88, 89, 89, 89, 90,
    90, 91, 91, 92, 93, 93, 94, 94, 94, 95,
    95, 96, 96, 97, 97, 97, 98, 98, 99, 99,
    99, 99, 99, 100, 101, 101, 102, 102, 103, 103,
    104, 104, 104, 104, 104, 104, 105, 105, 105, 105,
    105, 105, 105, 105, 105, 105, 105, 105, 105, 105,
    106, 106
};

/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
static const yytype_uint8 yyr2[] = {
    0, 2, 0, 3, 0, 2, 0, 1, 1, 3,
    3, 4, 6, 7, 8, 0, 2, 2, 2, 0,
    5, 1, 1, 1, 1, 1, 1, 1, 1, 3,
    3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
    3, 3, 3, 3, 3, 3, 3, 3, 4, 3,
    3, 0, 1, 1, 3, 8, 1, 8, 9, 1,
    4, 1, 3, 3, 1, 3, 3, 3, 4, 0,
    2, 0, 2, 1, 3, 3, 1, 3, 2, 2,
    2, 2, 2, 3, 1, 3, 3, 1, 1, 1,
    1, 1, 1, 1, 1, 1, 3, 2, 2, 2,
    2, 4, 7, 8, 6, 4, 3, 5, 1, 6,
    0, 3
};

/* 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[] = {
    2, 0, 0, 0, 15, 15, 15, 0, 0, 4,
    0, 0, 0, 0, 18, 16, 17, 0, 1, 2,
    0, 24, 25, 27, 23, 0, 0, 26, 10, 56,
    28, 0, 6, 0, 5, 3, 19, 51, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 11, 8, 0, 7, 0, 0, 0, 53,
    0, 52, 0, 49, 46, 34, 35, 29, 30, 31,
    33, 32, 50, 38, 36, 37, 39, 40, 45, 47,
    42, 41, 43, 44, 0, 0, 0, 0, 0, 0,
    0, 48, 0, 0, 0, 0, 110, 9, 46, 0,
    0, 54, 0, 0, 0, 0, 0, 108, 0, 0,
    0, 0, 0, 0, 0, 0, 110, 4, 13, 22,
    21, 0, 0, 0, 0, 0, 0, 51, 0, 99,
    97, 98, 100, 0, 93, 90, 95, 91, 92, 94,
    0, 0, 0, 0, 110, 20, 4, 0, 0, 0,
    0, 0, 110, 0, 14, 59, 64, 0, 73, 0,
    0, 0, 0, 0, 51, 0, 0, 0, 106, 96,
    111, 61, 0, 78, 0, 79, 80, 81, 82, 69,
    0, 76, 0, 0, 0, 0, 55, 57, 0, 101,
    0, 0, 105, 0, 0, 0, 0, 4, 89, 88,
    0, 84, 87, 110, 71, 67, 0, 75, 0, 65,
    66, 0, 74, 58, 107, 0, 0, 0, 0, 0,
    60, 62, 0, 0, 83, 70, 110, 68, 76, 77,
    109, 104, 0, 0, 63, 89, 86, 85, 72, 102,
    0, 103
};

/* YYDEFGOTO[NTERM-NUM].  */
static const yytype_int16 yydefgoto[] = {
    -1, 8, 19, 64, 65, 9, 10, 68, 131, 27,
    69, 70, 71, 29, 30, 164, 182, 207, 190, 166,
    214, 237, 167, 192, 168, 185, 210, 211, 212, 150,
    127, 128
};

/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
   STATE-NUM.  */
#define YYPACT_NINF -175
static const yytype_int16 yypact[] = {
    351, 7, 14, 18, 41, 41, 41, 51, 59, -175,
    22, 1, 60, 5, -175, -175, -175, 64, -175, 275,
    78, -175, -175, 17, -175, 28, 1, -175, 773, -13,
    -175, 1, 81, 1, -175, -175, 29, 1, 1, 223,
    1, 1, 1, 1, 1, 1, 1, 1, 99, 1,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    95, 1, 773, -175, 33, 96, 805, 104, 92, 773,
    39, 108, 549, -175, 46, 930, 930, 951, 951, 221,
    221, 221, -175, 46, 46, 46, 46, 46, 930, 930,
    930, 930, 900, 869, 47, 581, 125, 128, 1, 112,
    1, -175, 1, 1, 1, 61, 156, -175, 477, -35,
    837, 773, 613, 645, 1, 2, 140, -175, 139, 143,
    144, 146, 1, 93, 142, 1, 156, -175, -175, -175,
    -175, 103, 91, 1, 1, 677, 1, 1, 97, -175,
    -175, -175, -175, 455, -175, -175, -175, -175, -175, -175,
    162, 161, 709, 105, 132, -175, -175, 1, 148, 148,
    1, 1, 156, 123, -175, -175, 164, 13, -175, 255,
    299, 1, 741, 107, 1, 156, 137, 1, -175, -175,
    -175, 166, 6, 773, 58, -175, -175, 773, 773, 130,
    116, 8, 117, 460, 460, 66, -175, -175, 331, -175,
    174, 120, 131, 1, 515, 192, 460, -175, 194, -175,
    -4, -175, -175, 156, 149, -175, 66, -175, 460, -175,
    -175, 66, -175, -175, -175, 185, 156, 375, 1, 1,
    -175, 166, 69, 58, -175, -175, 156, -175, -6, -175,
    -175, -175, 156, 415, 773, -175, -175, -175, -175, -175,
    156, -175
};

/* YYPGOTO[NTERM-NUM].  */
static const yytype_int16 yypgoto[] = {
    -175, 189, -119, -175, -175, -175, 94, -175, -175, -175,
    -11, -120, -175, -175, -175, -175, -175, -175, -129, 15,
    -175, -175, -137, -3, -175, 55, -175, -18, -16, -175,
    -174, -105
};

/* 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 -16
static const yytype_int16 yytable[] = {
    28, 202, 60, 165, 21, 22, 23, 24, 154, 136,
    216, 205, 233, 129, 11, 39, 25, 173, 234, 12,
    62, 153, 66, 13, 216, 130, 191, 72, 61, 74,
    75, 76, 77, 78, 79, 80, 81, 181, 83, 84,
    85, 86, 87, 88, 89, 90, 91, 92, 93, 180,
    95, 206, 241, 40, 201, 194, 17, 189, 222, 18,
    194, 208, 209, 48, 219, 20, 195, 31, 249, 4,
    5, 6, 245, 209, 26, 137, 251, 230, 32, 238,
    195, 191, 33, 36, 238, 195, 63, 108, 231, 110,
    37, 111, 112, 113, 21, 22, 23, 24, 14, 15,
    16, 38, 67, 135, 82, 94, 25, 96, 235, 99,
    100, 143, 97, 101, 152, 157, 158, 159, 160, 161,
    104, 74, 169, 170, 102, 172, 21, 22, 23, 24,
    109, 248, 106, 107, 114, 156, 144, 115, 25, 221,
    157, 158, 159, 160, 161, 138, 183, 151, 162, 187,
    188, 34, 39, 145, 146, 147, 148, 149, 139, 116,
    198, 115, 140, 141, 163, 142, 204, 176, 177, 184,
    174, 117, 157, 158, 159, 160, 161, 155, 118, 179,
    162, 200, 203, 116, 193, 34, 119, 120, 121, 213,
    215, 217, 227, 224, 225, 117, 163, 122, 226, 229,
    123, 124, 118, 125, 240, 126, 232, 236, 35, 220,
    119, 120, 121, 239, 186, 247, 246, 243, 244, 0,
    0, 122, 0, 0, 123, 124, 0, 125, 40, 126,
    40, 41, 42, 43, 44, 45, 46, 47, 48, 0,
    48, 49, 0, 49, 50, 51, 50, 51, 0, 0,
    0, 0, 52, 53, 52, 53, 54, 55, 56, 57,
    58, 59, 40, 41, 42, 43, 44, 45, 46, 47,
    0, 0, 48, 0, 0, 49, 0, 0, 50, 51,
    1, 0, 0, 0, 0, 0, 52, 53, 54, 55,
    56, 57, 58, 59, 34, 0, 0, 73, 0, 0,
    2, 3, 0, 4, 5, 6, 40, 41, 42, 43,
    44, 45, 46, 47, 0, 0, 48, 7, -15, 49,
    0, 0, 50, 51, 0, 0, 0, 0, 0, 196,
    52, 53, 54, 55, 56, 57, 58, 59, 40, 41,
    42, 43, 44, 45, 46, 47, 0, 0, 48, 0,
    0, 49, 0, 0, 50, 51, 1, 0, 0, 0,
    0, 0, 52, 53, 54, 55, 56, 57, 58, 59,
    0, 0, 0, 197, 0, 0, 2, 3, 0, 4,
    5, 6, 40, 41, 42, 43, 44, 45, 46, 47,
    0, 0, 48, 7, -15, 49, 0, 0, 50, 51,
    0, 0, 0, 0, 0, 223, 52, 53, 54, 55,
    56, 57, 58, 59, 0, 0, 0, 0, 0, 0,
    0, 0, 40, 41, 42, 43, 44, 45, 46, 47,
    0, 0, 48, 0, 0, 49, 0, 0, 50, 51,
    0, 0, 0, 0, 0, 242, 52, 53, 54, 55,
    56, 57, 58, 59, 0, 0, 0, 0, 0, 0,
    0, 0, 40, 41, 42, 43, 44, 45, 46, 47,
    0, 0, 48, 0, 0, 49, 0, -12, 50, 51,
    0, 0, -12, 0, 40, 250, 52, 53, 54, 55,
    56, 57, 58, 59, 48, 0, -12, 0, 0, 0,
    0, 0, -12, -12, 0, -12, -12, -12, 0, 157,
    158, 159, 160, 161, 0, 0, 0, 162, 0, -12,
    -12, 175, 40, 41, 42, 43, 44, 45, 46, 47,
    0, 0, 48, 218, 0, 49, 0, 0, 50, 51,
    0, 0, 0, 0, 0, 0, 52, 53, 54, 55,
    56, 57, 58, 59, 0, 228, 40, 41, 42, 43,
    44, 45, 46, 47, 0, 103, 48, 0, 0, 49,
    0, 0, 50, 51, 0, 0, 0, 0, 0, 0,
    52, 53, 54, 55, 56, 57, 58, 59, 40, 41,
    42, 43, 44, 45, 46, 47, 0, 0, 48, 105,
    0, 49, 0, 0, 50, 51, 0, 0, 0, 0,
    0, 0, 52, 53, 54, 55, 56, 57, 58, 59,
    40, 41, 42, 43, 44, 45, 46, 47, 0, 133,
    48, 0, 0, 49, 0, 0, 50, 51, 0, 0,
    0, 0, 0, 0, 52, 53, 54, 55, 56, 57,
    58, 59, 40, 41, 42, 43, 44, 45, 46, 47,
    0, 134, 48, 0, 0, 49, 0, 0, 50, 51,
    0, 0, 0, 0, 0, 0, 52, 53, 54, 55,
    56, 57, 58, 59, 40, 41, 42, 43, 44, 45,
    46, 47, 0, 171, 48, 0, 0, 49, 0, 0,
    50, 51, 0, 0, 0, 0, 0, 0, 52, 53,
    54, 55, 56, 57, 58, 59, 40, 41, 42, 43,
    44, 45, 46, 47, 0, 0, 48, 0, 178, 49,
    0, 0, 50, 51, 0, 0, 0, 0, 0, 0,
    52, 53, 54, 55, 56, 57, 58, 59, 40, 41,
    42, 43, 44, 45, 46, 47, 0, 0, 48, 0,
    199, 49, 0, 0, 50, 51, 0, 0, 0, 0,
    0, 0, 52, 53, 54, 55, 56, 57, 58, 59,
    40, 41, 42, 43, 44, 45, 46, 47, 0, 0,
    48, 0, 0, 49, 0, 0, 50, 51, 0, 0,
    0, 0, 0, 0, 52, 53, 54, 55, 56, 57,
    58, 59, 98, 41, 42, 43, 44, 45, 46, 47,
    0, 0, 48, 0, 0, 49, 0, 0, 50, 51,
    0, 0, 0, 0, 0, 0, 52, 53, 54, 55,
    56, 57, 58, 59, 132, 41, 42, 43, 44, 45,
    46, 47, 0, 0, 48, 0, 0, 49, 0, 0,
    50, 51, 0, 0, 0, 0, 0, 0, 52, 53,
    54, 55, 56, 57, 58, 59, 40, 41, 42, 43,
    44, 45, 46, 47, 0, 0, 48, 0, 0, 49,
    0, 0, 50, 51, 0, 0, 0, 0, 0, 0,
    52, 53, 54, 55, 56, 57, 58, 40, 41, 42,
    43, 44, 45, 46, 47, 0, 0, 48, 0, 0,
    49, 0, 0, 50, 51, 0, 0, 0, 0, 0,
    0, 52, 53, 54, 55, 56, 57, 40, 0, 0,
    43, 44, 45, 46, 47, 0, 0, 48, 0, 0,
    49, 0, 0, 50, 51, 0, 0, 0, 40, 0,
    0, 52, 53, 45, 46, 47, 0, 0, 48, 0,
    0, 49, 0, 0, 50, 51, 0, 0, 0, 0,
    0, 0, 52, 53
};

static const yytype_int16 yycheck[] = {
    11, 175, 15, 132, 3, 4, 5, 6, 127, 7,
    16, 5, 16, 48, 7, 26, 15, 137, 22, 5,
    31, 126, 33, 5, 16, 60, 163, 38, 41, 40,
    41, 42, 43, 44, 45, 46, 47, 156, 49, 50,
    51, 52, 53, 54, 55, 56, 57, 58, 59, 154,
    61, 45, 226, 7, 174, 47, 5, 162, 195, 0,
    47, 3, 4, 17, 193, 43, 72, 7, 242, 28,
    29, 30, 3, 4, 73, 73, 250, 206, 73, 216,
    72, 218, 18, 5, 221, 72, 5, 98, 207, 100,
    73, 102, 103, 104, 3, 4, 5, 6, 4, 5,
    6, 73, 73, 114, 5, 10, 15, 74, 213, 5,
    18, 122, 16, 74, 125, 49, 50, 51, 52, 53,
    73, 132, 133, 134, 16, 136, 3, 4, 5, 6,
    18, 236, 7, 5, 73, 44, 43, 5, 15, 73,
    49, 50, 51, 52, 53, 5, 157, 5, 57, 160,
    161, 19, 163, 60, 61, 62, 63, 64, 19, 27,
    171, 5, 19, 19, 73, 19, 177, 5, 7, 21,
    73, 39, 49, 50, 51, 52, 53, 74, 46, 74,
    57, 74, 45, 27, 20, 19, 54, 55, 56, 59,
    74, 74, 203, 19, 74, 39, 73, 65, 67, 7,
    68, 69, 46, 71, 19, 73, 12, 58, 19, 194,
    54, 55, 56, 216, 159, 233, 232, 228, 229, -1,
    -1, 65, -1, -1, 68, 69, -1, 71, 7, 73,
    7, 8, 9, 10, 11, 12, 13, 14, 17, -1,
    17, 20, -1, 20, 23, 24, 23, 24, -1, -1,
    -1, -1, 31, 32, 31, 32, 33, 34, 35, 36,
    37, 38, 7, 8, 9, 10, 11, 12, 13, 14,
    -1, -1, 17, -1, -1, 20, -1, -1, 23, 24,
    5, -1, -1, -1, -1, -1, 31, 32, 33, 34,
    35, 36, 37, 38, 19, -1, -1, 74, -1, -1,
    25, 26, -1, 28, 29, 30, 7, 8, 9, 10,
    11, 12, 13, 14, -1, -1, 17, 42, 43, 20,
    -1, -1, 23, 24, -1, -1, -1, -1, -1, 74,
    31, 32, 33, 34, 35, 36, 37, 38, 7, 8,
    9, 10, 11, 12, 13, 14, -1, -1, 17, -1,
    -1, 20, -1, -1, 23, 24, 5, -1, -1, -1,
    -1, -1, 31, 32, 33, 34, 35, 36, 37, 38,
    -1, -1, -1, 74, -1, -1, 25, 26, -1, 28,
    29, 30, 7, 8, 9, 10, 11, 12, 13, 14,
    -1, -1, 17, 42, 43, 20, -1, -1, 23, 24,
    -1, -1, -1, -1, -1, 74, 31, 32, 33, 34,
    35, 36, 37, 38, -1, -1, -1, -1, -1, -1,
    -1, -1, 7, 8, 9, 10, 11, 12, 13, 14,
    -1, -1, 17, -1, -1, 20, -1, -1, 23, 24,
    -1, -1, -1, -1, -1, 70, 31, 32, 33, 34,
    35, 36, 37, 38, -1, -1, -1, -1, -1, -1,
    -1, -1, 7, 8, 9, 10, 11, 12, 13, 14,
    -1, -1, 17, -1, -1, 20, -1, 0, 23, 24,
    -1, -1, 5, -1, 7, 70, 31, 32, 33, 34,
    35, 36, 37, 38, 17, -1, 19, -1, -1, -1,
    -1, -1, 25, 26, -1, 28, 29, 30, -1, 49,
    50, 51, 52, 53, -1, -1, -1, 57, -1, 42,
    43, 66, 7, 8, 9, 10, 11, 12, 13, 14,
    -1, -1, 17, 73, -1, 20, -1, -1, 23, 24,
    -1, -1, -1, -1, -1, -1, 31, 32, 33, 34,
    35, 36, 37, 38, -1, 40, 7, 8, 9, 10,
    11, 12, 13, 14, -1, 16, 17, -1, -1, 20,
    -1, -1, 23, 24, -1, -1, -1, -1, -1, -1,
    31, 32, 33, 34, 35, 36, 37, 38, 7, 8,
    9, 10, 11, 12, 13, 14, -1, -1, 17, 18,
    -1, 20, -1, -1, 23, 24, -1, -1, -1, -1,
    -1, -1, 31, 32, 33, 34, 35, 36, 37, 38,
    7, 8, 9, 10, 11, 12, 13, 14, -1, 16,
    17, -1, -1, 20, -1, -1, 23, 24, -1, -1,
    -1, -1, -1, -1, 31, 32, 33, 34, 35, 36,
    37, 38, 7, 8, 9, 10, 11, 12, 13, 14,
    -1, 16, 17, -1, -1, 20, -1, -1, 23, 24,
    -1, -1, -1, -1, -1, -1, 31, 32, 33, 34,
    35, 36, 37, 38, 7, 8, 9, 10, 11, 12,
    13, 14, -1, 16, 17, -1, -1, 20, -1, -1,
    23, 24, -1, -1, -1, -1, -1, -1, 31, 32,
    33, 34, 35, 36, 37, 38, 7, 8, 9, 10,
    11, 12, 13, 14, -1, -1, 17, -1, 19, 20,
    -1, -1, 23, 24, -1, -1, -1, -1, -1, -1,
    31, 32, 33, 34, 35, 36, 37, 38, 7, 8,
    9, 10, 11, 12, 13, 14, -1, -1, 17, -1,
    19, 20, -1, -1, 23, 24, -1, -1, -1, -1,
    -1, -1, 31, 32, 33, 34, 35, 36, 37, 38,
    7, 8, 9, 10, 11, 12, 13, 14, -1, -1,
    17, -1, -1, 20, -1, -1, 23, 24, -1, -1,
    -1, -1, -1, -1, 31, 32, 33, 34, 35, 36,
    37, 38, 7, 8, 9, 10, 11, 12, 13, 14,
    -1, -1, 17, -1, -1, 20, -1, -1, 23, 24,
    -1, -1, -1, -1, -1, -1, 31, 32, 33, 34,
    35, 36, 37, 38, 7, 8, 9, 10, 11, 12,
    13, 14, -1, -1, 17, -1, -1, 20, -1, -1,
    23, 24, -1, -1, -1, -1, -1, -1, 31, 32,
    33, 34, 35, 36, 37, 38, 7, 8, 9, 10,
    11, 12, 13, 14, -1, -1, 17, -1, -1, 20,
    -1, -1, 23, 24, -1, -1, -1, -1, -1, -1,
    31, 32, 33, 34, 35, 36, 37, 7, 8, 9,
    10, 11, 12, 13, 14, -1, -1, 17, -1, -1,
    20, -1, -1, 23, 24, -1, -1, -1, -1, -1,
    -1, 31, 32, 33, 34, 35, 36, 7, -1, -1,
    10, 11, 12, 13, 14, -1, -1, 17, -1, -1,
    20, -1, -1, 23, 24, -1, -1, -1, 7, -1,
    -1, 31, 32, 12, 13, 14, -1, -1, 17, -1,
    -1, 20, -1, -1, 23, 24, -1, -1, -1, -1,
    -1, -1, 31, 32
};

/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
   symbol of state STATE-NUM.  */
static const yytype_uint8 yystos[] = {
    0, 5, 25, 26, 28, 29, 30, 42, 76, 80,
    81, 7, 5, 5, 81, 81, 81, 5, 0, 77,
    43, 3, 4, 5, 6, 15, 73, 84, 85, 88,
    89, 7, 73, 18, 19, 76, 5, 73, 73, 85,
    7, 8, 9, 10, 11, 12, 13, 14, 17, 20,
    23, 24, 31, 32, 33, 34, 35, 36, 37, 38,
    15, 41, 85, 5, 78, 79, 85, 73, 82, 85,
    86, 87, 85, 74, 85, 85, 85, 85, 85, 85,
    85, 85, 5, 85, 85, 85, 85, 85, 85, 85,
    85, 85, 85, 85, 10, 85, 74, 16, 7, 5,
    18, 74, 16, 16, 73, 18, 7, 5, 85, 18,
    85, 85, 85, 85, 73, 5, 27, 39, 46, 54,
    55, 56, 65, 68, 69, 71, 73, 105, 106, 48,
    60, 83, 7, 16, 16, 85, 7, 73, 5, 19,
    19, 19, 19, 85, 43, 60, 61, 62, 63, 64,
    104, 5, 85, 106, 77, 74, 44, 49, 50, 51,
    52, 53, 57, 73, 90, 93, 94, 97, 99, 85,
    85, 16, 85, 86, 73, 66, 5, 7, 19, 74,
    106, 77, 91, 85, 21, 100, 100, 85, 85, 106,
    93, 97, 98, 20, 47, 72, 74, 74, 85, 19,
    74, 86, 105, 45, 85, 5, 45, 92, 3, 4,
    101, 102, 103, 59, 95, 74, 16, 74, 73, 93,
    94, 73, 97, 74, 19, 74, 67, 85, 40, 7,
    93, 77, 12, 16, 22, 106, 58, 96, 97, 98,
    19, 105, 70, 85, 85, 3, 103, 102, 106, 105,
    70, 105
};

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

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

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

#define YYFAIL		goto yyerrlab

#define YYRECOVERING()  (!!yyerrstatus)

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

#define YYTERROR	1
#define YYERRCODE	256

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

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

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

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

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

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

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

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

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

# define YY_SYMBOL_PRINT(Title, Type, Value, Location)			  \
do {									  \
  if (yydebug)								  \
    {									  \
      YYFPRINTF (stderr, "%s ", Title);					  \
      yy_symbol_print (stderr,						  \
		  Type, Value, 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,
                       YYSTYPE const *const yyvaluep,
                       YYLTYPE const *const yylocationp)
#else
static void yy_symbol_value_print (yyoutput, yytype, yyvaluep, yylocationp)
  FILE *yyoutput;
  int yytype;
  YYSTYPE const *const yyvaluep;
  YYLTYPE const *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, YYSTYPE const *const yyvaluep,
                 YYLTYPE const *const yylocationp)
#else
static void yy_symbol_print (yyoutput, yytype, yyvaluep, yylocationp)
  FILE *yyoutput;
  int yytype;
  YYSTYPE const *const yyvaluep;
  YYLTYPE const *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 == '"')
    {
        YYSIZE_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] = '\0';
                    return yyn;
            }
      do_not_strip_quotes:;
    }

    if (!yyres)
        return yystrlen (yystr);

    return yystpcpy (yyres, yystr) - yyres;
}
# endif

/* Copy into YYRESULT an error message about the unexpected token
   YYCHAR while in state YYSTATE.  Return the number of bytes copied,
   including the terminating null byte.  If YYRESULT is null, do not
   copy anything; just return the number of bytes that would be
   copied.  As a special case, return 0 if an ordinary "syntax error"
   message will do.  Return YYSIZE_MAXIMUM if overflow occurs during
   size calculation.  */
static YYSIZE_T yysyntax_error (char *yyresult, int yystate, int yychar)
{
    int  yyn = yypact[yystate];

    if (!(YYPACT_NINF < yyn && yyn <= YYLAST))
        return 0;
    else
    {
        int  yytype = YYTRANSLATE (yychar);
        YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
        YYSIZE_T yysize = yysize0;
        YYSIZE_T yysize1;
        int  yysize_overflow = 0;
        enum
        { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
        char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
        int  yyx;

# if 0
        /* This is so xgettext sees the translatable formats that are
         * constructed on the fly.  */
        YY_ ("syntax error, unexpected %s");
        YY_ ("syntax error, unexpected %s, expecting %s");
        YY_ ("syntax error, unexpected %s, expecting %s or %s");
        YY_ ("syntax error, unexpected %s, expecting %s or %s or %s");
        YY_ ("syntax error, unexpected %s, expecting %s or %s or %s or %s");
# endif
        char *yyfmt;
        char const *yyf;
        static char const yyunexpected[] = "syntax error, unexpected %s";
        static char const yyexpecting[] = ", expecting %s";
        static char const yyor[] = " or %s";
        char yyformat[sizeof yyunexpected
                      + sizeof yyexpecting - 1
                      + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
                         * (sizeof yyor - 1))];
        char const *yyprefix = yyexpecting;

        /* Start YYX at -YYN if negative to avoid negative indexes in
         * YYCHECK.  */
        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  yycount = 1;

        yyarg[0] = yytname[yytype];
        yyfmt = yystpcpy (yyformat, yyunexpected);

        for (yyx = yyxbegin; yyx < yyxend; ++yyx)
            if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
            {
                if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
                {
                    yycount = 1;
                    yysize = yysize0;
                    yyformat[sizeof yyunexpected - 1] = '\0';
                    break;
                }
                yyarg[yycount++] = yytname[yyx];
                yysize1 = yysize + yytnamerr (0, yytname[yyx]);
                yysize_overflow |= (yysize1 < yysize);
                yysize = yysize1;
                yyfmt = yystpcpy (yyfmt, yyprefix);
                yyprefix = yyor;
            }

        yyf = YY_ (yyformat);
        yysize1 = yysize + yystrlen (yyf);
        yysize_overflow |= (yysize1 < yysize);
        yysize = yysize1;

        if (yysize_overflow)
            return YYSIZE_MAXIMUM;

        if (yyresult)
        {
            /* Avoid sprintf, as that infringes on the user's name space.
             * Don't have undefined behavior even if the translation
             * produced a string with the wrong number of "%s"s.  */
            char *yyp = yyresult;
            int  yyi = 0;
            while ((*yyp = *yyf) != '\0')
            {
                if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
                {
                    yyp += yytnamerr (yyp, yyarg[yyi++]);
                    yyf += 2;
                }
                else
                {
                    yyp++;
                    yyf++;
                }
            }
        }
        return yysize;
    }
}
#endif /* YYERROR_VERBOSE */

/*-----------------------------------------------.
| Release the memory associated to this symbol.  |
`-----------------------------------------------*/

 /*ARGSUSED*/
#if (defined __STDC__ || defined __C99__FUNC__ \
     || defined __cplusplus || defined _MSC_VER)
static void
yydestruct (const char *yymsg, int yytype, YYSTYPE * yyvaluep,
            YYLTYPE * yylocationp)
#else
static void yydestruct (yymsg, yytype, yyvaluep, yylocationp)
  const char *yymsg;
  int yytype;
  YYSTYPE *yyvaluep;
  YYLTYPE *yylocationp;
#endif
{
    YYUSE (yyvaluep);
    YYUSE (yylocationp);

    if (!yymsg)
        yymsg = "Deleting";
    YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);

    switch (yytype)
    {

        default:
            break;
    }
}

/* Prevent warnings from -Wmissing-prototypes.  */

#ifdef YYPARSE_PARAM
#if defined __STDC__ || defined __cplusplus
int  yyparse (void *YYPARSE_PARAM);
#else
int  yyparse ();
#endif
#else /* ! YYPARSE_PARAM */
#if defined __STDC__ || defined __cplusplus
int  yyparse (void);
#else
int  yyparse ();
#endif
#endif /* ! YYPARSE_PARAM */

/* The look-ahead symbol.  */
int  yychar;

/* The semantic value of the look-ahead symbol.  */
YYSTYPE yylval;

/* Number of syntax errors so far.  */
int  yynerrs;
/* Location data for the look-ahead symbol.  */
YYLTYPE yylloc;

/*----------.
| yyparse.  |
`----------*/

#ifdef YYPARSE_PARAM
#if (defined __STDC__ || defined __C99__FUNC__ \
     || defined __cplusplus || defined _MSC_VER)
int yyparse (void *YYPARSE_PARAM)
#else
int yyparse (YYPARSE_PARAM)
  void *YYPARSE_PARAM;
#endif
#else /* ! YYPARSE_PARAM */
#if (defined __STDC__ || defined __C99__FUNC__ \
     || defined __cplusplus || defined _MSC_VER)
int yyparse (void)
#else
int yyparse ()
#endif
#endif
{

    int  yystate;
    int  yyn;
    int  yyresult;
    /* Number of tokens to shift before error messages enabled.  */
    int  yyerrstatus;
    /* Look-ahead token as an internal (translated) token number.  */
    int  yytoken = 0;
#if YYERROR_VERBOSE
    /* Buffer for error messages, and its allocated size.  */
    char yymsgbuf[128];
    char *yymsg = yymsgbuf;
    YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
#endif

    /* Three stacks and their tools:
     * `yyss': related to states,
     * `yyvs': related to semantic values,
     * `yyls': related to locations.
     * 
     * Refer to the stacks thru separate pointers, to allow yyoverflow
     * to reallocate them elsewhere.  */

    /* The state stack.  */
    yytype_int16 yyssa[YYINITDEPTH];
    yytype_int16 *yyss = yyssa;
    yytype_int16 *yyssp;

    /* The semantic value stack.  */
    YYSTYPE yyvsa[YYINITDEPTH];
    YYSTYPE *yyvs = yyvsa;
    YYSTYPE *yyvsp;

    /* The location stack.  */
    YYLTYPE yylsa[YYINITDEPTH];
    YYLTYPE *yyls = yylsa;
    YYLTYPE *yylsp;
    /* The locations where the error started and ended.  */
    YYLTYPE yyerror_range[2];

#define YYPOPSTACK(N)   (yyvsp -= (N), yyssp -= (N), yylsp -= (N))

    YYSIZE_T yystacksize = YYINITDEPTH;

    /* The variables used to return semantic value and location from the
     * action routines.  */
    YYSTYPE yyval;
    YYLTYPE yyloc;

    /* The number of symbols on the RHS of the reduced rule.
     * Keep to zero when no symbol should be popped.  */
    int  yylen = 0;

    YYDPRINTF ((stderr, "Starting parse\n"));

    yystate = 0;
    yyerrstatus = 0;
    yynerrs = 0;
    yychar = YYEMPTY;           /* Cause a token to be read.  */

    /* Initialize stack pointers.
     * Waste one element of value and location stack
     * so that they stay on the same level as the state stack.
     * The wasted elements are never initialized.  */

    yyssp = yyss;
    yyvsp = yyvs;
    yylsp = yyls;
#if YYLTYPE_IS_TRIVIAL
    /* Initialize the default location before parsing starts.  */
    yylloc.first_line = yylloc.last_line = 1;
    yylloc.first_column = yylloc.last_column = 0;
#endif

    goto yysetstate;

/*------------------------------------------------------------.
| yynewstate -- Push a new state, which is found in yystate.  |
`------------------------------------------------------------*/
  yynewstate:
    /* In all cases, when you get here, the value and location stacks
     * have just been pushed.  So pushing a state here evens the stacks.  */
    yyssp++;

  yysetstate:
    *yyssp = yystate;

    if (yyss + yystacksize - 1 <= yyssp)
    {
        /* Get the current used size of the three stacks, in elements.  */
        YYSIZE_T yysize = yyssp - yyss + 1;

#ifdef yyoverflow
        {
            /* Give user a chance to reallocate the stack.  Use copies of
             * these so that the &'s don't force the real ones into
             * memory.  */
            YYSTYPE *yyvs1 = yyvs;
            yytype_int16 *yyss1 = yyss;
            YYLTYPE *yyls1 = yyls;

            /* Each stack pointer address is followed by the size of the
             * data in use in that stack, in bytes.  This used to be a
             * conditional around just the two extra args, but that might
             * be undefined if yyoverflow is a macro.  */
            yyoverflow (YY_ ("memory exhausted"),
                        &yyss1, yysize * sizeof (*yyssp),
                        &yyvs1, yysize * sizeof (*yyvsp),
                        &yyls1, yysize * sizeof (*yylsp), &yystacksize);
            yyls = yyls1;
            yyss = yyss1;
            yyvs = yyvs1;
        }
#else /* no yyoverflow */
# ifndef YYSTACK_RELOCATE
        goto yyexhaustedlab;
# else
        /* Extend the stack our own way.  */
        if (YYMAXDEPTH <= yystacksize)
            goto yyexhaustedlab;
        yystacksize *= 2;
        if (YYMAXDEPTH < yystacksize)
            yystacksize = YYMAXDEPTH;

        {
            yytype_int16 *yyss1 = yyss;
            union yyalloc *yyptr =
                (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
            if (!yyptr)
                goto yyexhaustedlab;
            YYSTACK_RELOCATE (yyss);
            YYSTACK_RELOCATE (yyvs);
            YYSTACK_RELOCATE (yyls);
#  undef YYSTACK_RELOCATE
            if (yyss1 != yyssa)
                YYSTACK_FREE (yyss1);
        }
# endif
#endif /* no yyoverflow */

        yyssp = yyss + yysize - 1;
        yyvsp = yyvs + yysize - 1;
        yylsp = yyls + yysize - 1;

        YYDPRINTF ((stderr, "Stack size increased to %lu\n",
                    (unsigned long int) yystacksize));

        if (yyss + yystacksize - 1 <= yyssp)
            YYABORT;
    }

    YYDPRINTF ((stderr, "Entering state %d\n", yystate));

    goto yybackup;

/*-----------.
| yybackup.  |
`-----------*/
  yybackup:

    /* Do appropriate processing given the current state.  Read a
     * look-ahead token if we need one and don't already have one.  */

    /* First try to decide what to do without reference to look-ahead token.  */
    yyn = yypact[yystate];
    if (yyn == YYPACT_NINF)
        goto yydefault;

    /* Not known => get a look-ahead token if don't already have one.  */

    /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol.  */
    if (yychar == YYEMPTY)
    {
        YYDPRINTF ((stderr, "Reading a token: "));
        yychar = YYLEX;
    }

    if (yychar <= YYEOF)
    {
        yychar = yytoken = YYEOF;
        YYDPRINTF ((stderr, "Now at end of input.\n"));
    }
    else
    {
        yytoken = YYTRANSLATE (yychar);
        YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
    }

    /* If the proper action on seeing token YYTOKEN is to reduce or to
     * detect an error, take that action.  */
    yyn += yytoken;
    if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
        goto yydefault;
    yyn = yytable[yyn];
    if (yyn <= 0)
    {
        if (yyn == 0 || yyn == YYTABLE_NINF)
            goto yyerrlab;
        yyn = -yyn;
        goto yyreduce;
    }

    if (yyn == YYFINAL)
        YYACCEPT;

    /* Count tokens shifted since error; after three, turn off error
     * status.  */
    if (yyerrstatus)
        yyerrstatus--;

    /* Shift the look-ahead token.  */
    YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);

    /* Discard the shifted token unless it is eof.  */
    if (yychar != YYEOF)
        yychar = YYEMPTY;

    yystate = yyn;
    *++yyvsp = yylval;
    *++yylsp = yylloc;
    goto yynewstate;

/*-----------------------------------------------------------.
| yydefault -- do the default action for the current state.  |
`-----------------------------------------------------------*/
  yydefault:
    yyn = yydefact[yystate];
    if (yyn == 0)
        goto yyerrlab;
    goto yyreduce;

/*-----------------------------.
| yyreduce -- Do a reduction.  |
`-----------------------------*/
  yyreduce:
    /* yyn is the number of a rule to reduce with.  */
    yylen = yyr2[yyn];

    /* If YYLEN is nonzero, implement the default value of the action:
     * `$$ = $1'.
     * 
     * Otherwise, the following line sets YYVAL to garbage.
     * This behavior is undocumented and Bison
     * users should not rely upon it.  Assigning to YYVAL
     * unconditionally makes the parser a bit smaller, and it avoids a
     * GCC warning that YYVAL may be used uninitialized.  */
    yyval = yyvsp[1 - yylen];

    /* Default location.  */
    YYLLOC_DEFAULT (yyloc, (yylsp - yylen), yylen);
    YY_REDUCE_PRINT (yyn);
    switch (yyn)
    {
        case 2:
#line 213 "magic-interpreter-parser.y"
        {;
        }
            break;

        case 3:
#line 215 "magic-interpreter-parser.y"
        {;
        }
            break;

        case 4:
#line 220 "magic-interpreter-parser.y"
        {;
        }
            break;

        case 5:
#line 222 "magic-interpreter-parser.y"
        {;
        }
            break;

        case 6:
#line 227 "magic-interpreter-parser.y"
        {
            (yyval.proc) = aCalloc (sizeof (proc_t), 1);;
        }
            break;

        case 7:
#line 229 "magic-interpreter-parser.y"
        {
            (yyval.proc) = (yyvsp[(1) - (1)].proc);;
        }
            break;

        case 8:
#line 233 "magic-interpreter-parser.y"
        {
            (yyval.proc) = aCalloc (sizeof (proc_t), 1);
            (yyval.proc)->args_nr = 1;
            (yyval.proc)->args = malloc (sizeof (int));
            (yyval.proc)->args[0] = intern_id ((yyvsp[(1) - (1)].s));
            ;
        }
            break;

        case 9:
#line 239 "magic-interpreter-parser.y"
        {
            (yyval.proc) = (yyvsp[(1) - (3)].proc);
            (yyval.proc)->args =
                realloc ((yyval.proc)->args,
                         sizeof (int) * (1 + (yyval.proc)->args_nr));
            (yyval.proc)->args[(yyval.proc)->args_nr++] =
                intern_id ((yyvsp[(3) - (3)].s));
            ;
        }
            break;

        case 10:
#line 246 "magic-interpreter-parser.y"
        {
            int  var_id;
            if (find_constant ((yyvsp[(1) - (3)].s)))
            {
                fail ((yylsp[(1) - (3)]).first_line, 0,
                      "Attempt to redefine constant `%s' as global\n",
                      (yyvsp[(1) - (3)].s));
                free ((yyvsp[(1) - (3)].s));
            }
            else
            {
                var_id = intern_id ((yyvsp[(1) - (3)].s));
                magic_eval (&magic_default_env, &magic_conf.vars[var_id],
                            (yyvsp[(3) - (3)].expr));
            }
            ;
        }
            break;

        case 11:
#line 257 "magic-interpreter-parser.y"
        {
            val_t var;
            magic_eval (&magic_default_env, &var, (yyvsp[(4) - (4)].expr));
            bind_constant ((yyvsp[(2) - (4)].s), &var,
                           (yylsp[(1) - (4)]).first_line);
            ;
        }
            break;

        case 12:
#line 263 "magic-interpreter-parser.y"
        {
            teleport_anchor_t *anchor =
                calloc (sizeof (teleport_anchor_t), 1);
            anchor->name = (yyvsp[(2) - (6)].s);
            anchor->invocation =
                magic_eval_str (&magic_default_env, (yyvsp[(4) - (6)].expr));
            anchor->location = (yyvsp[(6) - (6)].expr);

            if (!failed_flag)
                add_teleport_anchor (anchor, (yylsp[(1) - (6)]).first_line);
            failed_flag = 0;
            ;
        }
            break;

        case 13:
#line 274 "magic-interpreter-parser.y"
        {
            proc_t *proc = (yyvsp[(4) - (7)].proc);
            proc->name = (yyvsp[(2) - (7)].s);
            proc->body = (yyvsp[(7) - (7)].effect);
            if (!failed_flag)
                install_proc (proc);
            failed_flag = 0;
            ;
        }
            break;

        case 14:
#line 283 "magic-interpreter-parser.y"
        {
            spell_t *spell = (yyvsp[(8) - (8)].spell);
            spell->name = (yyvsp[(3) - (8)].s);
            spell->invocation =
                magic_eval_str (&magic_default_env, (yyvsp[(6) - (8)].expr));
            spell->arg = (yyvsp[(4) - (8)].spellarg_def).id;
            spell->spellarg_ty = (yyvsp[(4) - (8)].spellarg_def).ty;
            spell->flags = (yyvsp[(1) - (8)].i);
            if (!failed_flag)
                add_spell (spell, (yylsp[(1) - (8)]).first_line);
            failed_flag = 0;
            ;
        }
            break;

        case 15:
#line 295 "magic-interpreter-parser.y"
        {
            (yyval.i) = 0;;
        }
            break;

        case 16:
#line 297 "magic-interpreter-parser.y"
        {
            if ((yyvsp[(2) - (2)].i) & SPELL_FLAG_LOCAL)
                fail ((yylsp[(1) - (2)]).first_line,
                      (yylsp[(1) - (2)]).first_column,
                      "`LOCAL' specified more than once");
            (yyval.i) = (yyvsp[(2) - (2)].i) | SPELL_FLAG_LOCAL;
            ;
        }
            break;

        case 17:
#line 302 "magic-interpreter-parser.y"
        {
            if ((yyvsp[(2) - (2)].i) & SPELL_FLAG_NONMAGIC)
                fail ((yylsp[(1) - (2)]).first_line,
                      (yylsp[(1) - (2)]).first_column,
                      "`NONMAGIC' specified more than once");
            (yyval.i) = (yyvsp[(2) - (2)].i) | SPELL_FLAG_NONMAGIC;
            ;
        }
            break;

        case 18:
#line 307 "magic-interpreter-parser.y"
        {
            if ((yyvsp[(2) - (2)].i) & SPELL_FLAG_SILENT)
                fail ((yylsp[(1) - (2)]).first_line,
                      (yylsp[(1) - (2)]).first_column,
                      "`SILENT' specified more than once");
            (yyval.i) = (yyvsp[(2) - (2)].i) | SPELL_FLAG_SILENT;
            ;
        }
            break;

        case 19:
#line 314 "magic-interpreter-parser.y"
        {
            (yyval.spellarg_def).ty = SPELLARG_NONE;;
        }
            break;

        case 20:
#line 316 "magic-interpreter-parser.y"
        {
            (yyval.spellarg_def).id = intern_id ((yyvsp[(2) - (5)].s));
            (yyval.spellarg_def).ty = (yyvsp[(4) - (5)].i);;
        }
            break;

        case 21:
#line 322 "magic-interpreter-parser.y"
        {
            (yyval.i) = SPELLARG_PC;;
        }
            break;

        case 22:
#line 324 "magic-interpreter-parser.y"
        {
            (yyval.i) = SPELLARG_STRING;;
        }
            break;

        case 23:
#line 329 "magic-interpreter-parser.y"
        {
            (yyval.value).ty = TY_DIR;
            (yyval.value).v.v_int = (yyvsp[(1) - (1)].i);;
        }
            break;

        case 24:
#line 332 "magic-interpreter-parser.y"
        {
            (yyval.value).ty = TY_INT;
            (yyval.value).v.v_int = (yyvsp[(1) - (1)].i);;
        }
            break;

        case 25:
#line 335 "magic-interpreter-parser.y"
        {
            (yyval.value).ty = TY_STRING;
            (yyval.value).v.v_string = (yyvsp[(1) - (1)].s);;
        }
            break;

        case 26:
#line 341 "magic-interpreter-parser.y"
        {
            (yyval.expr) = magic_new_expr (EXPR_VAL);
            (yyval.expr)->e.e_val = (yyvsp[(1) - (1)].value);;
        }
            break;

        case 27:
#line 344 "magic-interpreter-parser.y"
        {
            val_t *val;
            if ((val = find_constant ((yyvsp[(1) - (1)].s))))
            {
                (yyval.expr) = magic_new_expr (EXPR_VAL);
                (yyval.expr)->e.e_val = *val;
            }
            else
            {
                (yyval.expr) = magic_new_expr (EXPR_ID);
                (yyval.expr)->e.e_id = intern_id ((yyvsp[(1) - (1)].s));
            }
            ;
        }
            break;

        case 28:
#line 355 "magic-interpreter-parser.y"
        {
            (yyval.expr) = magic_new_expr (EXPR_AREA);
            (yyval.expr)->e.e_area = (yyvsp[(1) - (1)].area);;
        }
            break;

        case 29:
#line 358 "magic-interpreter-parser.y"
        {
            BIN_EXPR ((yyval.expr), "+", (yyvsp[(1) - (3)].expr),
                      (yyvsp[(3) - (3)].expr), (yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column);;
        }
            break;

        case 30:
#line 360 "magic-interpreter-parser.y"
        {
            BIN_EXPR ((yyval.expr), "-", (yyvsp[(1) - (3)].expr),
                      (yyvsp[(3) - (3)].expr), (yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column);;
        }
            break;

        case 31:
#line 362 "magic-interpreter-parser.y"
        {
            BIN_EXPR ((yyval.expr), "*", (yyvsp[(1) - (3)].expr),
                      (yyvsp[(3) - (3)].expr), (yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column);;
        }
            break;

        case 32:
#line 364 "magic-interpreter-parser.y"
        {
            BIN_EXPR ((yyval.expr), "%", (yyvsp[(1) - (3)].expr),
                      (yyvsp[(3) - (3)].expr), (yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column);;
        }
            break;

        case 33:
#line 366 "magic-interpreter-parser.y"
        {
            BIN_EXPR ((yyval.expr), "/", (yyvsp[(1) - (3)].expr),
                      (yyvsp[(3) - (3)].expr), (yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column);;
        }
            break;

        case 34:
#line 368 "magic-interpreter-parser.y"
        {
            BIN_EXPR ((yyval.expr), ">", (yyvsp[(3) - (3)].expr),
                      (yyvsp[(1) - (3)].expr), (yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column);;
        }
            break;

        case 35:
#line 370 "magic-interpreter-parser.y"
        {
            BIN_EXPR ((yyval.expr), ">", (yyvsp[(1) - (3)].expr),
                      (yyvsp[(3) - (3)].expr), (yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column);;
        }
            break;

        case 36:
#line 372 "magic-interpreter-parser.y"
        {
            BIN_EXPR ((yyval.expr), "&", (yyvsp[(1) - (3)].expr),
                      (yyvsp[(3) - (3)].expr), (yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column);;
        }
            break;

        case 37:
#line 374 "magic-interpreter-parser.y"
        {
            BIN_EXPR ((yyval.expr), "^", (yyvsp[(1) - (3)].expr),
                      (yyvsp[(3) - (3)].expr), (yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column);;
        }
            break;

        case 38:
#line 376 "magic-interpreter-parser.y"
        {
            BIN_EXPR ((yyval.expr), "|", (yyvsp[(1) - (3)].expr),
                      (yyvsp[(3) - (3)].expr), (yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column);;
        }
            break;

        case 39:
#line 378 "magic-interpreter-parser.y"
        {
            BIN_EXPR ((yyval.expr), "<<", (yyvsp[(1) - (3)].expr),
                      (yyvsp[(3) - (3)].expr), (yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column);;
        }
            break;

        case 40:
#line 380 "magic-interpreter-parser.y"
        {
            BIN_EXPR ((yyval.expr), ">>", (yyvsp[(1) - (3)].expr),
                      (yyvsp[(3) - (3)].expr), (yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column);;
        }
            break;

        case 41:
#line 382 "magic-interpreter-parser.y"
        {
            BIN_EXPR ((yyval.expr), ">=", (yyvsp[(3) - (3)].expr),
                      (yyvsp[(1) - (3)].expr), (yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column);;
        }
            break;

        case 42:
#line 384 "magic-interpreter-parser.y"
        {
            BIN_EXPR ((yyval.expr), ">=", (yyvsp[(1) - (3)].expr),
                      (yyvsp[(3) - (3)].expr), (yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column);;
        }
            break;

        case 43:
#line 386 "magic-interpreter-parser.y"
        {
            BIN_EXPR ((yyval.expr), "&&", (yyvsp[(1) - (3)].expr),
                      (yyvsp[(3) - (3)].expr), (yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column);;
        }
            break;

        case 44:
#line 388 "magic-interpreter-parser.y"
        {
            BIN_EXPR ((yyval.expr), "||", (yyvsp[(1) - (3)].expr),
                      (yyvsp[(3) - (3)].expr), (yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column);;
        }
            break;

        case 45:
#line 390 "magic-interpreter-parser.y"
        {
            BIN_EXPR ((yyval.expr), "=", (yyvsp[(1) - (3)].expr),
                      (yyvsp[(3) - (3)].expr), (yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column);;
        }
            break;

        case 46:
#line 392 "magic-interpreter-parser.y"
        {
            BIN_EXPR ((yyval.expr), "=", (yyvsp[(1) - (3)].expr),
                      (yyvsp[(3) - (3)].expr), (yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column);;
        }
            break;

        case 47:
#line 394 "magic-interpreter-parser.y"
        {
            BIN_EXPR ((yyval.expr), "=", (yyvsp[(1) - (3)].expr),
                      (yyvsp[(3) - (3)].expr), (yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column);
            (yyval.expr) =
                fun_expr ("not", 1, &(yyval.expr),
                          (yylsp[(1) - (3)]).first_line,
                          (yylsp[(1) - (3)]).first_column);;
        }
            break;

        case 48:
#line 397 "magic-interpreter-parser.y"
        {
            (yyval.expr) =
                fun_expr ((yyvsp[(1) - (4)].s),
                          (yyvsp[(3) - (4)].arg_list).args_nr,
                          (yyvsp[(3) - (4)].arg_list).args,
                          (yylsp[(1) - (4)]).first_line,
                          (yylsp[(1) - (4)]).first_column);
            if ((yyvsp[(3) - (4)].arg_list).args)
                free ((yyvsp[(3) - (4)].arg_list).args);
            free ((yyvsp[(1) - (4)].s));;
        }
            break;

        case 49:
#line 402 "magic-interpreter-parser.y"
        {
            (yyval.expr) = (yyvsp[(2) - (3)].expr);;
        }
            break;

        case 50:
#line 404 "magic-interpreter-parser.y"
        {
            (yyval.expr) =
                dot_expr ((yyvsp[(1) - (3)].expr),
                          intern_id ((yyvsp[(3) - (3)].s)));;
        }
            break;

        case 51:
#line 408 "magic-interpreter-parser.y"
        {
            (yyval.arg_list).args_nr = 0;;
        }
            break;

        case 52:
#line 410 "magic-interpreter-parser.y"
        {
            (yyval.arg_list) = (yyvsp[(1) - (1)].arg_list);
        }
            break;

        case 53:
#line 415 "magic-interpreter-parser.y"
        {
            (yyval.arg_list).args = aCalloc (sizeof (expr_t *), 1);
            (yyval.arg_list).args_nr = 1;
            (yyval.arg_list).args[0] = (yyvsp[(1) - (1)].expr);
            ;
        }
            break;

        case 54:
#line 420 "magic-interpreter-parser.y"
        {
            (yyval.arg_list).args =
                realloc ((yyval.arg_list).args,
                         (1 + (yyval.arg_list).args_nr) * sizeof (expr_t *));
            (yyval.arg_list).args[(yyval.arg_list).args_nr++] =
                (yyvsp[(3) - (3)].expr);
            ;
        }
            break;

        case 55:
#line 427 "magic-interpreter-parser.y"
        {
            (yyval.location).m = (yyvsp[(3) - (8)].expr);
            (yyval.location).x = (yyvsp[(5) - (8)].expr);
            (yyval.location).y = (yyvsp[(7) - (8)].expr);;
        }
            break;

        case 56:
#line 431 "magic-interpreter-parser.y"
        {
            (yyval.area).ty = AREA_LOCATION;
            (yyval.area).a.a_loc = (yyvsp[(1) - (1)].location);
            ;
        }
            break;

        case 57:
#line 435 "magic-interpreter-parser.y"
        {
            (yyval.area).ty = AREA_RECT;
            (yyval.area).a.a_rect.loc = (yyvsp[(1) - (8)].location);
            (yyval.area).a.a_rect.width = (yyvsp[(5) - (8)].expr);
            (yyval.area).a.a_rect.height = (yyvsp[(7) - (8)].expr);
            ;
        }
            break;

        case 58:
#line 441 "magic-interpreter-parser.y"
        {
            (yyval.area).ty = AREA_BAR;
            (yyval.area).a.a_bar.loc = (yyvsp[(1) - (9)].location);
            (yyval.area).a.a_bar.width = (yyvsp[(6) - (9)].expr);
            (yyval.area).a.a_bar.depth = (yyvsp[(8) - (9)].expr);
            (yyval.area).a.a_bar.dir = (yyvsp[(3) - (9)].expr);
            ;
        }
            break;

        case 59:
#line 451 "magic-interpreter-parser.y"
        {
            (yyval.spell) = new_spell ((yyvsp[(1) - (1)].spellguard));;
        }
            break;

        case 60:
#line 453 "magic-interpreter-parser.y"
        {
            (yyval.spell) = new_spell ((yyvsp[(4) - (4)].spellguard));
            (yyval.spell)->letdefs_nr = (yyvsp[(2) - (4)].letdefs).letdefs_nr;
            (yyval.spell)->letdefs = (yyvsp[(2) - (4)].letdefs).letdefs;
            (yyval.spell)->spellguard = (yyvsp[(4) - (4)].spellguard);
            ;
        }
            break;

        case 61:
#line 462 "magic-interpreter-parser.y"
        {
            (yyval.letdefs).letdefs_nr = 0;
            (yyval.letdefs).letdefs = (letdef_t *) malloc (1);
            ;
        }
            break;

        case 62:
#line 466 "magic-interpreter-parser.y"
        {
            (yyval.letdefs) = (yyvsp[(1) - (3)].letdefs);
            (yyval.letdefs).letdefs_nr++;
            (yyval.letdefs).letdefs =
                realloc ((yyval.letdefs).letdefs,
                         sizeof (letdef_t) * (yyval.letdefs).letdefs_nr);
            (yyval.letdefs).letdefs[(yyvsp[(1) - (3)].letdefs).letdefs_nr] =
                (yyvsp[(2) - (3)].vardef);
            ;
        }
            break;

        case 63:
#line 475 "magic-interpreter-parser.y"
        {
            if (find_constant ((yyvsp[(1) - (3)].s)))
            {
                fail ((yylsp[(1) - (3)]).first_line,
                      (yylsp[(1) - (3)]).first_column,
                      "Attempt to re-define constant `%s' as LET-bound variable.\n",
                      (yyvsp[(1) - (3)].s));
                free ((yyvsp[(1) - (3)].s));
            }
            else
            {
                (yyval.vardef).id = intern_id ((yyvsp[(1) - (3)].s));
                (yyval.vardef).expr = (yyvsp[(3) - (3)].expr);
            }
            ;
        }
            break;

        case 64:
#line 488 "magic-interpreter-parser.y"
        {
            (yyval.spellguard) = (yyvsp[(1) - (1)].spellguard);;
        }
            break;

        case 65:
#line 490 "magic-interpreter-parser.y"
        {
            spellguard_t *sg = new_spellguard (SPELLGUARD_CHOICE);
            sg->next = (yyvsp[(1) - (3)].spellguard);
            sg->s.s_alt = (yyvsp[(3) - (3)].spellguard);
            (yyval.spellguard) = sg;
            ;
        }
            break;

        case 66:
#line 499 "magic-interpreter-parser.y"
        {
            (yyval.spellguard) =
                spellguard_implication ((yyvsp[(1) - (3)].spellguard),
                                        (yyvsp[(3) - (3)].spellguard));;
        }
            break;

        case 67:
#line 501 "magic-interpreter-parser.y"
        {
            (yyval.spellguard) = (yyvsp[(2) - (3)].spellguard);;
        }
            break;

        case 68:
#line 503 "magic-interpreter-parser.y"
        {
            spellguard_t *sg = new_spellguard (SPELLGUARD_EFFECT);
            sg->s.s_effect.effect = (yyvsp[(2) - (4)].effect);
            sg->s.s_effect.at_trigger = (yyvsp[(3) - (4)].effect);
            sg->s.s_effect.at_end = (yyvsp[(4) - (4)].effect);
            (yyval.spellguard) = sg;
            ;
        }
            break;

        case 69:
#line 513 "magic-interpreter-parser.y"
        {
            (yyval.effect) = NULL;;
        }
            break;

        case 70:
#line 515 "magic-interpreter-parser.y"
        {
            (yyval.effect) = (yyvsp[(2) - (2)].effect);;
        }
            break;

        case 71:
#line 520 "magic-interpreter-parser.y"
        {
            (yyval.effect) = NULL;;
        }
            break;

        case 72:
#line 522 "magic-interpreter-parser.y"
        {
            (yyval.effect) = (yyvsp[(2) - (2)].effect);;
        }
            break;

        case 73:
#line 527 "magic-interpreter-parser.y"
        {
            (yyval.spellguard) = (yyvsp[(1) - (1)].spellguard);;
        }
            break;

        case 74:
#line 529 "magic-interpreter-parser.y"
        {
            spellguard_t *sg = new_spellguard (SPELLGUARD_CHOICE);
            sg->next = (yyvsp[(1) - (3)].spellguard);
            sg->s.s_alt = (yyvsp[(3) - (3)].spellguard);
            (yyval.spellguard) = sg;
            ;
        }
            break;

        case 75:
#line 535 "magic-interpreter-parser.y"
        {
            (yyval.spellguard) = (yyvsp[(2) - (3)].spellguard);;
        }
            break;

        case 76:
#line 540 "magic-interpreter-parser.y"
        {
            (yyval.spellguard) = (yyvsp[(1) - (1)].spellguard);;
        }
            break;

        case 77:
#line 542 "magic-interpreter-parser.y"
        {
            (yyval.spellguard) =
                spellguard_implication ((yyvsp[(1) - (3)].spellguard),
                                        (yyvsp[(3) - (3)].spellguard));;
        }
            break;

        case 78:
#line 547 "magic-interpreter-parser.y"
        {
            (yyval.spellguard) = new_spellguard (SPELLGUARD_CONDITION);
            (yyval.spellguard)->s.s_condition = (yyvsp[(2) - (2)].expr);
            ;
        }
            break;

        case 79:
#line 551 "magic-interpreter-parser.y"
        {
            (yyval.spellguard) = new_spellguard (SPELLGUARD_CATALYSTS);
            (yyval.spellguard)->s.s_catalysts = (yyvsp[(2) - (2)].components);
            ;
        }
            break;

        case 80:
#line 555 "magic-interpreter-parser.y"
        {
            (yyval.spellguard) = new_spellguard (SPELLGUARD_COMPONENTS);
            (yyval.spellguard)->s.s_components =
                (yyvsp[(2) - (2)].components);
            ;
        }
            break;

        case 81:
#line 559 "magic-interpreter-parser.y"
        {
            (yyval.spellguard) = new_spellguard (SPELLGUARD_MANA);
            (yyval.spellguard)->s.s_mana = (yyvsp[(2) - (2)].expr);
            ;
        }
            break;

        case 82:
#line 563 "magic-interpreter-parser.y"
        {
            (yyval.spellguard) = new_spellguard (SPELLGUARD_CASTTIME);
            (yyval.spellguard)->s.s_casttime = (yyvsp[(2) - (2)].expr);
            ;
        }
            break;

        case 83:
#line 570 "magic-interpreter-parser.y"
        {
            (yyval.components) = (yyvsp[(2) - (3)].components);;
        }
            break;

        case 84:
#line 575 "magic-interpreter-parser.y"
        {
            (yyval.components) = NULL;
            magic_add_component (&(yyval.components),
                                 (yyvsp[(1) - (1)].component).id,
                                 (yyvsp[(1) - (1)].component).count);
            ;
        }
            break;

        case 85:
#line 579 "magic-interpreter-parser.y"
        {
            (yyval.components) = (yyvsp[(1) - (3)].components);
            magic_add_component (&(yyval.components),
                                 (yyvsp[(3) - (3)].component).id,
                                 (yyvsp[(3) - (3)].component).count);
            ;
        }
            break;

        case 86:
#line 586 "magic-interpreter-parser.y"
        {
            (yyval.component).id = (yyvsp[(3) - (3)].i);
            (yyval.component).count = (yyvsp[(1) - (3)].i);;
        }
            break;

        case 87:
#line 588 "magic-interpreter-parser.y"
        {
            (yyval.component).id = (yyvsp[(1) - (1)].i);
            (yyval.component).count = 1;;
        }
            break;

        case 88:
#line 593 "magic-interpreter-parser.y"
        {
            struct item_data *item = itemdb_searchname ((yyvsp[(1) - (1)].s));
            if (!item)
            {
                fail ((yylsp[(1) - (1)]).first_line,
                      (yylsp[(1) - (1)]).first_column, "Unknown item `%s'\n",
                      (yyvsp[(1) - (1)].s));
                (yyval.i) = 0;
            }
            else
                (yyval.i) = item->nameid;
            free ((yyvsp[(1) - (1)].s));
            ;
        }
            break;

        case 89:
#line 602 "magic-interpreter-parser.y"
        {
            (yyval.i) = (yyvsp[(1) - (1)].i);;
        }
            break;

        case 90:
#line 607 "magic-interpreter-parser.y"
        {
            (yyval.i) = FOREACH_FILTER_PC;;
        }
            break;

        case 91:
#line 609 "magic-interpreter-parser.y"
        {
            (yyval.i) = FOREACH_FILTER_MOB;;
        }
            break;

        case 92:
#line 611 "magic-interpreter-parser.y"
        {
            (yyval.i) = FOREACH_FILTER_ENTITY;;
        }
            break;

        case 93:
#line 613 "magic-interpreter-parser.y"
        {
            (yyval.i) = FOREACH_FILTER_SPELL;;
        }
            break;

        case 94:
#line 615 "magic-interpreter-parser.y"
        {
            (yyval.i) = FOREACH_FILTER_TARGET;;
        }
            break;

        case 95:
#line 617 "magic-interpreter-parser.y"
        {
            (yyval.i) = FOREACH_FILTER_NPC;;
        }
            break;

        case 96:
#line 622 "magic-interpreter-parser.y"
        {
            (yyval.effect) = (yyvsp[(2) - (3)].effect);;
        }
            break;

        case 97:
#line 624 "magic-interpreter-parser.y"
        {
            (yyval.effect) = new_effect (EFFECT_SKIP);;
        }
            break;

        case 98:
#line 626 "magic-interpreter-parser.y"
        {
            (yyval.effect) = new_effect (EFFECT_ABORT);;
        }
            break;

        case 99:
#line 628 "magic-interpreter-parser.y"
        {
            (yyval.effect) = new_effect (EFFECT_END);;
        }
            break;

        case 100:
#line 630 "magic-interpreter-parser.y"
        {
            (yyval.effect) = new_effect (EFFECT_BREAK);;
        }
            break;

        case 101:
#line 632 "magic-interpreter-parser.y"
        {
            if (find_constant ((yyvsp[(1) - (4)].s)))
            {
                fail ((yylsp[(1) - (4)]).first_line,
                      (yylsp[(1) - (4)]).first_column,
                      "Attempt to re-define constant `%s' in assignment.",
                      (yyvsp[(1) - (4)].s));
                free ((yyvsp[(1) - (4)].s));
            }
            else
            {
                (yyval.effect) = new_effect (EFFECT_ASSIGN);
                (yyval.effect)->e.e_assign.id =
                    intern_id ((yyvsp[(1) - (4)].s));
                (yyval.effect)->e.e_assign.expr = (yyvsp[(3) - (4)].expr);
            }
            ;
        }
            break;

        case 102:
#line 643 "magic-interpreter-parser.y"
        {
            (yyval.effect) = new_effect (EFFECT_FOREACH);
            (yyval.effect)->e.e_foreach.id = intern_id ((yyvsp[(3) - (7)].s));
            (yyval.effect)->e.e_foreach.area = (yyvsp[(5) - (7)].expr);
            (yyval.effect)->e.e_foreach.body = (yyvsp[(7) - (7)].effect);
            (yyval.effect)->e.e_foreach.filter = (yyvsp[(2) - (7)].i);
            ;
        }
            break;

        case 103:
#line 650 "magic-interpreter-parser.y"
        {
            (yyval.effect) = new_effect (EFFECT_FOR);
            (yyval.effect)->e.e_for.id = intern_id ((yyvsp[(2) - (8)].s));
            (yyval.effect)->e.e_for.start = (yyvsp[(4) - (8)].expr);
            (yyval.effect)->e.e_for.stop = (yyvsp[(6) - (8)].expr);
            (yyval.effect)->e.e_for.body = (yyvsp[(8) - (8)].effect);
            ;
        }
            break;

        case 104:
#line 657 "magic-interpreter-parser.y"
        {
            (yyval.effect) = new_effect (EFFECT_IF);
            (yyval.effect)->e.e_if.cond = (yyvsp[(2) - (6)].expr);
            (yyval.effect)->e.e_if.true_branch = (yyvsp[(4) - (6)].effect);
            (yyval.effect)->e.e_if.false_branch = (yyvsp[(6) - (6)].effect);
            ;
        }
            break;

        case 105:
#line 663 "magic-interpreter-parser.y"
        {
            (yyval.effect) = new_effect (EFFECT_IF);
            (yyval.effect)->e.e_if.cond = (yyvsp[(2) - (4)].expr);
            (yyval.effect)->e.e_if.true_branch = (yyvsp[(4) - (4)].effect);
            (yyval.effect)->e.e_if.false_branch = new_effect (EFFECT_SKIP);
            ;
        }
            break;

        case 106:
#line 669 "magic-interpreter-parser.y"
        {
            (yyval.effect) = new_effect (EFFECT_SLEEP);
            (yyval.effect)->e.e_sleep = (yyvsp[(2) - (3)].expr);
            ;
        }
            break;

        case 107:
#line 673 "magic-interpreter-parser.y"
        {
            (yyval.effect) =
                op_effect ((yyvsp[(1) - (5)].s),
                           (yyvsp[(3) - (5)].arg_list).args_nr,
                           (yyvsp[(3) - (5)].arg_list).args,
                           (yylsp[(1) - (5)]).first_line,
                           (yylsp[(1) - (5)]).first_column);
            free ((yyvsp[(1) - (5)].s));
            ;
        }
            break;

        case 108:
#line 677 "magic-interpreter-parser.y"
        {
            (yyval.effect) = new_effect (EFFECT_SCRIPT);
            (yyval.effect)->e.e_script =
                parse_script ((unsigned char *) (yyvsp[(1) - (1)].s),
                              (yylsp[(1) - (1)]).first_line);
            free ((yyvsp[(1) - (1)].s));
            if ((yyval.effect)->e.e_script == NULL)
                fail ((yylsp[(1) - (1)]).first_line,
                      (yylsp[(1) - (1)]).first_column,
                      "Failed to compile script\n");
            ;
        }
            break;

        case 109:
#line 684 "magic-interpreter-parser.y"
        {
            (yyval.effect) =
                call_proc ((yyvsp[(2) - (6)].s),
                           (yyvsp[(4) - (6)].arg_list).args_nr,
                           (yyvsp[(4) - (6)].arg_list).args,
                           (yylsp[(1) - (6)]).first_line,
                           (yylsp[(1) - (6)]).first_column);
            free ((yyvsp[(2) - (6)].s));
            ;
        }
            break;

        case 110:
#line 690 "magic-interpreter-parser.y"
        {
            (yyval.effect) = new_effect (EFFECT_SKIP);;
        }
            break;

        case 111:
#line 692 "magic-interpreter-parser.y"
        {
            (yyval.effect) =
                set_effect_continuation ((yyvsp[(1) - (3)].effect),
                                         (yyvsp[(3) - (3)].effect));;
        }
            break;

/* Line 1267 of yacc.c.  */
#line 2645 "magic-interpreter-parser.c"
        default:
            break;
    }
    YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);

    YYPOPSTACK (yylen);
    yylen = 0;
    YY_STACK_PRINT (yyss, yyssp);

    *++yyvsp = yyval;
    *++yylsp = yyloc;

    /* Now `shift' the result of the reduction.  Determine what state
     * that goes to, based on the state we popped back to and the rule
     * number reduced by.  */

    yyn = yyr1[yyn];

    yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
    if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
        yystate = yytable[yystate];
    else
        yystate = yydefgoto[yyn - YYNTOKENS];

    goto yynewstate;

/*------------------------------------.
| yyerrlab -- here on detecting error |
`------------------------------------*/
  yyerrlab:
    /* If not already recovering from an error, report this error.  */
    if (!yyerrstatus)
    {
        ++yynerrs;
#if ! YYERROR_VERBOSE
        yyerror (YY_ ("syntax error"));
#else
        {
            YYSIZE_T yysize = yysyntax_error (0, yystate, yychar);
            if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM)
            {
                YYSIZE_T yyalloc = 2 * yysize;
                if (!(yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM))
                    yyalloc = YYSTACK_ALLOC_MAXIMUM;
                if (yymsg != yymsgbuf)
                    YYSTACK_FREE (yymsg);
                yymsg = (char *) YYSTACK_ALLOC (yyalloc);
                if (yymsg)
                    yymsg_alloc = yyalloc;
                else
                {
                    yymsg = yymsgbuf;
                    yymsg_alloc = sizeof yymsgbuf;
                }
            }

            if (0 < yysize && yysize <= yymsg_alloc)
            {
                (void) yysyntax_error (yymsg, yystate, yychar);
                yyerror (yymsg);
            }
            else
            {
                yyerror (YY_ ("syntax error"));
                if (yysize != 0)
                    goto yyexhaustedlab;
            }
        }
#endif
    }

    yyerror_range[0] = yylloc;

    if (yyerrstatus == 3)
    {
        /* If just tried and failed to reuse look-ahead token after an
         * error, discard it.  */

        if (yychar <= YYEOF)
        {
            /* Return failure if at end of input.  */
            if (yychar == YYEOF)
                YYABORT;
        }
        else
        {
            yydestruct ("Error: discarding", yytoken, &yylval, &yylloc);
            yychar = YYEMPTY;
        }
    }

    /* Else will try to reuse look-ahead token after shifting the error
     * token.  */
    goto yyerrlab1;

/*---------------------------------------------------.
| yyerrorlab -- error raised explicitly by YYERROR.  |
`---------------------------------------------------*/
  yyerrorlab:

    /* Pacify compilers like GCC when the user code never invokes
     * YYERROR and the label yyerrorlab therefore never appears in user
     * code.  */
    if ( /*CONSTCOND*/ 0)
        goto yyerrorlab;

    yyerror_range[0] = yylsp[1 - yylen];
    /* Do not reclaim the symbols of the rule which action triggered
     * this YYERROR.  */
    YYPOPSTACK (yylen);
    yylen = 0;
    YY_STACK_PRINT (yyss, yyssp);
    yystate = *yyssp;
    goto yyerrlab1;

/*-------------------------------------------------------------.
| yyerrlab1 -- common code for both syntax error and YYERROR.  |
`-------------------------------------------------------------*/
  yyerrlab1:
    yyerrstatus = 3;            /* Each real token shifted decrements this.  */

    for (;;)
    {
        yyn = yypact[yystate];
        if (yyn != YYPACT_NINF)
        {
            yyn += YYTERROR;
            if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
            {
                yyn = yytable[yyn];
                if (0 < yyn)
                    break;
            }
        }

        /* Pop the current state because it cannot handle the error token.  */
        if (yyssp == yyss)
            YYABORT;

        yyerror_range[0] = *yylsp;
        yydestruct ("Error: popping", yystos[yystate], yyvsp, yylsp);
        YYPOPSTACK (1);
        yystate = *yyssp;
        YY_STACK_PRINT (yyss, yyssp);
    }

    if (yyn == YYFINAL)
        YYACCEPT;

    *++yyvsp = yylval;

    yyerror_range[1] = yylloc;
    /* Using YYLLOC is tempting, but would change the location of
     * the look-ahead.  YYLOC is available though.  */
    YYLLOC_DEFAULT (yyloc, (yyerror_range - 1), 2);
    *++yylsp = yyloc;

    /* Shift the error token.  */
    YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);

    yystate = yyn;
    goto yynewstate;

/*-------------------------------------.
| yyacceptlab -- YYACCEPT comes here.  |
`-------------------------------------*/
  yyacceptlab:
    yyresult = 0;
    goto yyreturn;

/*-----------------------------------.
| yyabortlab -- YYABORT comes here.  |
`-----------------------------------*/
  yyabortlab:
    yyresult = 1;
    goto yyreturn;

#ifndef yyoverflow
/*-------------------------------------------------.
| yyexhaustedlab -- memory exhaustion comes here.  |
`-------------------------------------------------*/
  yyexhaustedlab:
    yyerror (YY_ ("memory exhausted"));
    yyresult = 2;
    /* Fall through.  */
#endif

  yyreturn:
    if (yychar != YYEOF && yychar != YYEMPTY)
        yydestruct ("Cleanup: discarding lookahead",
                    yytoken, &yylval, &yylloc);
    /* Do not reclaim the symbols of the rule which action triggered
     * this YYABORT or YYACCEPT.  */
    YYPOPSTACK (yylen);
    YY_STACK_PRINT (yyss, yyssp);
    while (yyssp != yyss)
    {
        yydestruct ("Cleanup: popping", yystos[*yyssp], yyvsp, yylsp);
        YYPOPSTACK (1);
    }
#ifndef yyoverflow
    if (yyss != yyssa)
        YYSTACK_FREE (yyss);
#endif
#if YYERROR_VERBOSE
    if (yymsg != yymsgbuf)
        YYSTACK_FREE (yymsg);
#endif
    /* Make sure YYID is used.  */
    return YYID (yyresult);
}

#line 696 "magic-interpreter-parser.y"

/* We do incremental realloc here to store our results.  Since this happens only once
 * during startup for a relatively manageable set of configs, it should be fine. */

static int intern_id (char *id_name)
{
    int  i;

    for (i = 0; i < magic_conf.vars_nr; i++)
        if (!strcmp (id_name, magic_conf.var_name[i]))
        {
            free (id_name);
            return i;
        }

    /* Must add new */
    i = magic_conf.vars_nr++;
    magic_conf.var_name =
        realloc (magic_conf.var_name, magic_conf.vars_nr * sizeof (char *));
    magic_conf.var_name[i] = id_name;
    magic_conf.vars =
        realloc (magic_conf.vars, magic_conf.vars_nr * sizeof (val_t));
    magic_conf.vars[i].ty = TY_UNDEF;

    return i;
}

static void add_spell (spell_t * spell, int line_nr)
{
    int  index = magic_conf.spells_nr;
    int  i;

    for (i = 0; i < index; i++)
    {
        if (!strcmp (magic_conf.spells[i]->name, spell->name))
        {
            fail (line_nr, 0, "Attempt to redefine spell `%s'\n",
                  spell->name);
            return;
        }
        if (!strcmp (magic_conf.spells[i]->invocation, spell->invocation))
        {
            fail (line_nr, 0,
                  "Attempt to redefine spell invocation `%s' between spells `%s' and `%s'\n",
                  spell->invocation, magic_conf.spells[i]->name, spell->name);
            return;
        }
    }
    magic_conf.spells_nr++;

    magic_conf.spells =
        realloc (magic_conf.spells,
                 magic_conf.spells_nr * sizeof (spell_t *));
    magic_conf.spells[index] = spell;

}

static void add_teleport_anchor (teleport_anchor_t * anchor, int line_nr)
{
    int  index = magic_conf.anchors_nr;
    int  i;

    for (i = 0; i < index; i++)
    {
        if (!strcmp (magic_conf.anchors[i]->name, anchor->name))
        {
            fail (line_nr, 0, "Attempt to redefine teleport anchor `%s'\n",
                  anchor->name);
            return;
        }
        if (!strcmp (magic_conf.anchors[i]->invocation, anchor->invocation))
        {
            fail (line_nr, 0,
                  "Attempt to redefine anchor invocation `%s' between anchors `%s' and `%s'\n",
                  anchor->invocation, magic_conf.anchors[i]->name,
                  anchor->name);
            return;
        }
    }
    magic_conf.anchors_nr++;

    magic_conf.anchors =
        realloc (magic_conf.anchors,
                 magic_conf.anchors_nr * sizeof (teleport_anchor_t *));
    magic_conf.anchors[index] = anchor;
}

static void fail (int line, int column, char *fmt, ...)
{
    va_list ap;
    fprintf (stderr, "[magic-init]  L%d:%d: ", line, column);
    va_start (ap, fmt);
    vfprintf (stderr, fmt, ap);
    failed_flag = 1;
}

static expr_t *dot_expr (expr_t * expr, int id)
{
    expr_t *retval = magic_new_expr (EXPR_SPELLFIELD);
    retval->e.e_field.id = id;
    retval->e.e_field.expr = expr;

    return retval;
}

static expr_t *fun_expr (char *name, int args_nr, expr_t ** args, int line,
                         int column)
{
    int  id;
    expr_t *expr;
    fun_t *fun = magic_get_fun (name, &id);

    if (!fun)
    {
        fail (line, column, "Unknown function `%s'\n", name);
    }
    else if (strlen (fun->signature) != args_nr)
    {
        fail (line, column,
              "Incorrect number of arguments to function `%s': Expected %d, found %d\n",
              name, strlen (fun->signature), args_nr);
        fun = NULL;
    }

    if (fun)
    {
        int  i;

        expr = magic_new_expr (EXPR_FUNAPP);
        expr->e.e_funapp.line_nr = line;
        expr->e.e_funapp.column = column;
        expr->e.e_funapp.id = id;
        expr->e.e_funapp.args_nr = args_nr;

        for (i = 0; i < args_nr; i++)
            expr->e.e_funapp.args[i] = args[i];
    }
    else
    {                           /* failure */
        expr = magic_new_expr (EXPR_VAL);
        expr->e.e_val.ty = TY_FAIL;
    }

    return expr;
}

static spell_t *new_spell (spellguard_t * guard)
{
    static int spell_counter = 0;

    spell_t *retval = calloc (1, sizeof (spell_t));
    retval->index = ++spell_counter;
    retval->spellguard = guard;
    return retval;
}

static spellguard_t *new_spellguard (int ty)
{
    spellguard_t *retval = calloc (1, sizeof (spellguard_t));
    retval->ty = ty;
    return retval;
}

static spellguard_t *spellguard_implication (spellguard_t * a,
                                             spellguard_t * b)
{
    spellguard_t *retval = a;

    if (a == b)                 /* This can happen due to reference sharing:
                                 * e.g.,
                                 *  (R0 -> (R1 | R2)) => (R3)
                                 * yields
                                 *  (R0 -> (R1 -> R3 | R2 -> R3))
                                 *
                                 * So if we now add => R4 to that, we want
                                 *  (R0 -> (R1 -> R3 -> R4 | R2 -> R3 -> R4))
                                 *
                                 * but we only need to add it once, because the R3 reference is shared.
                                 */
        return retval;

    /* If the premise is a disjunction, b is the continuation of _all_ branches */
    if (a->ty == SPELLGUARD_CHOICE)
        spellguard_implication (a->s.s_alt, b);
    if (a->next)
        spellguard_implication (a->next, b);
    else
        a->next = b;

    return retval;
}

static effect_t *new_effect (int ty)
{
    effect_t *effect = (effect_t *) calloc (1, sizeof (effect_t));
    effect->ty = ty;
    return effect;
}

static effect_t *set_effect_continuation (effect_t * src,
                                          effect_t * continuation)
{
    effect_t *retval = src;
    /* This function is completely analogous to `spellguard_implication' above; read the control flow implications above first before pondering it. */

    if (src == continuation)
        return retval;

    /* For FOR and FOREACH, we use special stack handlers and thus don't have to set
     * the continuation.  It's only IF that we need to handle in this fashion. */
    if (src->ty == EFFECT_IF)
    {
        set_effect_continuation (src->e.e_if.true_branch, continuation);
        set_effect_continuation (src->e.e_if.false_branch, continuation);
    }
    if (src->next)
        set_effect_continuation (src->next, continuation);
    else
        src->next = continuation;

    return retval;
}

static effect_t *op_effect (char *name, int args_nr, expr_t ** args, int line,
                            int column)
{
    int  id;
    effect_t *effect;
    op_t *op = magic_get_op (name, &id);

    if (!op)
        fail (line, column, "Unknown operation `%s'\n", name);
    else if (strlen (op->signature) != args_nr)
    {
        fail (line, column,
              "Incorrect number of arguments to operation `%s': Expected %d, found %d\n",
              name, strlen (op->signature), args_nr);
        op = NULL;
    }

    if (op)
    {
        int  i;

        effect = new_effect (EFFECT_OP);
        effect->e.e_op.line_nr = line;
        effect->e.e_op.column = column;
        effect->e.e_op.id = id;
        effect->e.e_op.args_nr = args_nr;

        for (i = 0; i < args_nr; i++)
            effect->e.e_op.args[i] = args[i];
    }
    else                        /* failure */
        effect = new_effect (EFFECT_SKIP);

    return effect;
}

proc_t *procs = NULL;
int  procs_nr = 0;

static void install_proc (proc_t * proc)
{
    if (!procs)
    {
        procs = proc;
        procs_nr = 1;
    }
    else
    {
        procs = realloc (procs, sizeof (proc_t) * (1 + procs_nr));
        procs[procs_nr++] = *proc;
    }
}

static effect_t *call_proc (char *name, int args_nr, expr_t ** args,
                            int line_nr, int column)
{
    proc_t *p = NULL;
    int  i;
    effect_t *retval;

    for (i = 0; i < procs_nr; i++)
        if (!strcmp (procs[i].name, name))
        {
            p = &procs[i];
            break;
        }

    if (!p)
    {
        fail (line_nr, column, "Unknown procedure `%s'\n", name);
        return new_effect (EFFECT_SKIP);
    }

    if (p->args_nr != args_nr)
    {
        fail (line_nr, column, "Procedure %s/%d invoked with %d parameters\n",
              name, p->args_nr, args_nr);
        return new_effect (EFFECT_SKIP);
    }

    retval = new_effect (EFFECT_CALL);
    retval->e.e_call.body = p->body;
    retval->e.e_call.args_nr = args_nr;
    retval->e.e_call.formals = p->args;
    retval->e.e_call.actuals = args;
    return retval;
}

struct const_def_rec
{
    char *name;
    val_t val;
}   *const_defs = NULL;

int  const_defs_nr = 0;

static void bind_constant (char *name, val_t * val, int line_nr)
{
    if (find_constant (name))
    {
        fail (line_nr, 0, "Redefinition of constant `%s'\n", name);
        return;
    }

    if (!const_defs)
        const_defs =
            (struct const_def_rec *) malloc (sizeof (struct const_def_rec));
    else
        const_defs = (struct const_def_rec *) realloc (const_defs,
                                                       (const_defs_nr +
                                                        1) *
                                                       sizeof (struct
                                                               const_def_rec));

    const_defs[const_defs_nr].name = name;
    const_defs[const_defs_nr].val = *val;
    ++const_defs_nr;
}

static val_t *find_constant (char *name)
{
    int  i;
    for (i = 0; i < const_defs_nr; i++)
    {
        if (!strcmp (const_defs[i].name, name))
        {
            free (name);
            return &const_defs[i].val;
        }
    }

    return NULL;
}

#define INTERN_ASSERT(name, id) { int zid = intern_id(name); if (zid != id) fprintf(stderr, "[magic-conf] INTERNAL ERROR: Builtin special var %s interned to %d, not %d as it should be!\n", name, zid, id); error_flag = 1; }

extern FILE *magic_frontend_in;

int magic_init (char *conffile) // must be called after itemdb initialisation
{
    int  error_flag = 0;

    magic_conf.vars_nr = 0;
    magic_conf.var_name = (char **) malloc (1);
    magic_conf.vars = (val_t *) malloc (1);

    magic_conf.obscure_chance = 95;
    magic_conf.min_casttime = 100;

    magic_conf.spells_nr = 0;
    magic_conf.spells = (spell_t **) malloc (1);

    magic_conf.anchors_nr = 0;
    magic_conf.anchors = (teleport_anchor_t **) malloc (1);

    INTERN_ASSERT ("min_casttime", VAR_MIN_CASTTIME);
    INTERN_ASSERT ("obscure_chance", VAR_OBSCURE_CHANCE);
    INTERN_ASSERT ("caster", VAR_CASTER);
    INTERN_ASSERT ("spellpower", VAR_SPELLPOWER);
    INTERN_ASSERT ("self_spell", VAR_SPELL);
    INTERN_ASSERT ("self_invocation", VAR_INVOCATION);
    INTERN_ASSERT ("target", VAR_TARGET);
    INTERN_ASSERT ("script_target", VAR_SCRIPTTARGET);
    INTERN_ASSERT ("location", VAR_LOCATION);

    magic_frontend_in = fopen_ (conffile, "r");
    if (!magic_frontend_in)
    {
        fprintf (stderr,
                 "[magic-conf] Magic configuration file `%s' not found -> no magic.\n",
                 conffile);
        return 0;
    }
    magic_frontend_parse ();

    if (magic_conf.vars[VAR_MIN_CASTTIME].ty == TY_INT)
        magic_conf.min_casttime = magic_conf.vars[VAR_MIN_CASTTIME].v.v_int;

    if (magic_conf.vars[VAR_OBSCURE_CHANCE].ty == TY_INT)
        magic_conf.obscure_chance =
            magic_conf.vars[VAR_OBSCURE_CHANCE].v.v_int;

    printf
        ("[magic-conf] Magic initialised; obscure at %d%%.  %d spells, %d teleport anchors.\n",
         magic_conf.obscure_chance, magic_conf.spells_nr,
         magic_conf.anchors_nr);

    if (procs)
        free (procs);
    return error_flag;
}

extern int magic_frontend_lineno;

static void magic_frontend_error (const char *msg)
{
    fprintf (stderr, "[magic-conf] Parse error: %s at line %d\n", msg,
             magic_frontend_lineno);
    failed_flag = 1;
}