path: root/command.c

/* A Bison parser, made by GNU Bison 3.8.2.  */

/* Bison implementation for Yacc-like parsers in C

   Copyright (C) 1984, 1989-1990, 2000-2015, 2018-2021 Free Software Foundation,
   Inc.

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

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

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */

/* As a special exception, you may create a larger work that contains
   part or all of the Bison parser skeleton and distribute that work
   under terms of your choice, so long as that work isn't itself a
   parser generator using the skeleton or a modified version thereof
   as a parser skeleton.  Alternatively, if you modify or redistribute
   the parser skeleton itself, you may (at your option) remove this
   special exception, which will cause the skeleton and the resulting
   Bison output files to be licensed under the GNU General Public
   License without this special exception.

   This special exception was added by the Free Software Foundation in
   version 2.2 of Bison.  */

/* C LALR(1) parser skeleton written by Richard Stallman, by
   simplifying the original so-called "semantic" parser.  */

/* DO NOT RELY ON FEATURES THAT ARE NOT DOCUMENTED in the manual,
   especially those whose name start with YY_ or yy_.  They are
   private implementation details that can be changed or removed.  */

/* 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, and Bison version.  */
#define YYBISON 30802

/* Bison version string.  */
#define YYBISON_VERSION "3.8.2"

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

/* Pure parsers.  */
#define YYPURE 0

/* Push parsers.  */
#define YYPUSH 0

/* Pull parsers.  */
#define YYPULL 1


/* Substitute the variable and function names.  */
#define yyparse         zzparse
#define yylex           zzlex
#define yyerror         zzerror
#define yydebug         zzdebug
#define yynerrs         zznerrs
#define yylval          zzlval
#define yychar          zzchar

/* First part of user prologue.  */
#line 28 "command.y"

#include "awk.h"
#include "cmd.h"

#if 0
#define YYDEBUG 12
int yydebug = 2;
#endif

static int yylex(void);
static void yyerror(const char *mesg, ...);
#define YYERROR_IS_DECLARED	1	/* for bison 3.8. sigh. */

static int find_command(const char *token, size_t toklen);

static bool want_nodeval = false;

static int cmd_idx = -1;		/* index of current command in cmd table */
static int repeat_idx = -1;		/* index of last repeatable command in command table */
static CMDARG *arg_list = NULL;		/* list of arguments */
static long dbg_errcount = 0;
static char *lexptr_begin = NULL;
static bool in_commands = false;
static int num_dim;

static bool in_eval = false;
static const char start_EVAL[] = "function @eval(){";
static const char end_EVAL[] = "}";
static CMDARG *append_statement(CMDARG *stmt_list, char *stmt);
static NODE *concat_args(CMDARG *a, int count);

#ifdef HAVE_LIBREADLINE
static char *next_word(char *p, int len, char **endp);
static void history_expand_line(char **line);
static char *command_generator(const char *text, int state);
static char *srcfile_generator(const char *text, int state);
static char *argument_generator(const char *text, int state);
static char *variable_generator(const char *text, int state);
extern char *option_generator(const char *text, int state);
static int this_cmd = D_illegal;
#else
#define history_expand_line(p)	/* nothing */
static int rl_inhibit_completion;	/* dummy variable */
#endif

struct argtoken {
	const char *name;
	enum argtype cmd;
	enum nametypeval value;
};

/*
 * These two should be static, but there are some compilers that
 * don't like the static keyword with an empty size. Therefore give
 * them names that are less likely to conflict with the rest of gawk.
 */
#define argtab zz_debug_argtab
#define cmdtab zz_debug_cmdtab

extern struct argtoken argtab[];
extern struct cmdtoken cmdtab[];

static CMDARG *mk_cmdarg(enum argtype type);
static void append_cmdarg(CMDARG *arg);
static int find_argument(CMDARG *arg);
#define YYSTYPE CMDARG *

#line 146 "command.c"

# ifndef YY_CAST
#  ifdef __cplusplus
#   define YY_CAST(Type, Val) static_cast<Type> (Val)
#   define YY_REINTERPRET_CAST(Type, Val) reinterpret_cast<Type> (Val)
#  else
#   define YY_CAST(Type, Val) ((Type) (Val))
#   define YY_REINTERPRET_CAST(Type, Val) ((Type) (Val))
#  endif
# endif
# ifndef YY_NULLPTR
#  if defined __cplusplus
#   if 201103L <= __cplusplus
#    define YY_NULLPTR nullptr
#   else
#    define YY_NULLPTR 0
#   endif
#  else
#   define YY_NULLPTR ((void*)0)
#  endif
# endif


/* Debug traces.  */
#ifndef YYDEBUG
# define YYDEBUG 0
#endif
#if YYDEBUG
extern int zzdebug;
#endif

/* Token kinds.  */
#ifndef YYTOKENTYPE
# define YYTOKENTYPE
  enum yytokentype
  {
    YYEMPTY = -2,
    YYEOF = 0,                     /* "end of file"  */
    YYerror = 256,                 /* error  */
    YYUNDEF = 257,                 /* "invalid token"  */
    D_BACKTRACE = 258,             /* D_BACKTRACE  */
    D_BREAK = 259,                 /* D_BREAK  */
    D_CLEAR = 260,                 /* D_CLEAR  */
    D_CONTINUE = 261,              /* D_CONTINUE  */
    D_DELETE = 262,                /* D_DELETE  */
    D_DISABLE = 263,               /* D_DISABLE  */
    D_DOWN = 264,                  /* D_DOWN  */
    D_ENABLE = 265,                /* D_ENABLE  */
    D_FINISH = 266,                /* D_FINISH  */
    D_FRAME = 267,                 /* D_FRAME  */
    D_HELP = 268,                  /* D_HELP  */
    D_IGNORE = 269,                /* D_IGNORE  */
    D_INFO = 270,                  /* D_INFO  */
    D_LIST = 271,                  /* D_LIST  */
    D_NEXT = 272,                  /* D_NEXT  */
    D_NEXTI = 273,                 /* D_NEXTI  */
    D_PRINT = 274,                 /* D_PRINT  */
    D_PRINTF = 275,                /* D_PRINTF  */
    D_QUIT = 276,                  /* D_QUIT  */
    D_RETURN = 277,                /* D_RETURN  */
    D_RUN = 278,                   /* D_RUN  */
    D_SET = 279,                   /* D_SET  */
    D_STEP = 280,                  /* D_STEP  */
    D_STEPI = 281,                 /* D_STEPI  */
    D_TBREAK = 282,                /* D_TBREAK  */
    D_UP = 283,                    /* D_UP  */
    D_UNTIL = 284,                 /* D_UNTIL  */
    D_DISPLAY = 285,               /* D_DISPLAY  */
    D_UNDISPLAY = 286,             /* D_UNDISPLAY  */
    D_WATCH = 287,                 /* D_WATCH  */
    D_UNWATCH = 288,               /* D_UNWATCH  */
    D_DUMP = 289,                  /* D_DUMP  */
    D_TRACE = 290,                 /* D_TRACE  */
    D_INT = 291,                   /* D_INT  */
    D_STRING = 292,                /* D_STRING  */
    D_NODE = 293,                  /* D_NODE  */
    D_VARIABLE = 294,              /* D_VARIABLE  */
    D_OPTION = 295,                /* D_OPTION  */
    D_COMMANDS = 296,              /* D_COMMANDS  */
    D_END = 297,                   /* D_END  */
    D_SILENT = 298,                /* D_SILENT  */
    D_SOURCE = 299,                /* D_SOURCE  */
    D_SAVE = 300,                  /* D_SAVE  */
    D_EVAL = 301,                  /* D_EVAL  */
    D_CONDITION = 302,             /* D_CONDITION  */
    D_STATEMENT = 303              /* D_STATEMENT  */
  };
  typedef enum yytokentype yytoken_kind_t;
#endif
/* Token kinds.  */
#define YYEMPTY -2
#define YYEOF 0
#define YYerror 256
#define YYUNDEF 257
#define D_BACKTRACE 258
#define D_BREAK 259
#define D_CLEAR 260
#define D_CONTINUE 261
#define D_DELETE 262
#define D_DISABLE 263
#define D_DOWN 264
#define D_ENABLE 265
#define D_FINISH 266
#define D_FRAME 267
#define D_HELP 268
#define D_IGNORE 269
#define D_INFO 270
#define D_LIST 271
#define D_NEXT 272
#define D_NEXTI 273
#define D_PRINT 274
#define D_PRINTF 275
#define D_QUIT 276
#define D_RETURN 277
#define D_RUN 278
#define D_SET 279
#define D_STEP 280
#define D_STEPI 281
#define D_TBREAK 282
#define D_UP 283
#define D_UNTIL 284
#define D_DISPLAY 285
#define D_UNDISPLAY 286
#define D_WATCH 287
#define D_UNWATCH 288
#define D_DUMP 289
#define D_TRACE 290
#define D_INT 291
#define D_STRING 292
#define D_NODE 293
#define D_VARIABLE 294
#define D_OPTION 295
#define D_COMMANDS 296
#define D_END 297
#define D_SILENT 298
#define D_SOURCE 299
#define D_SAVE 300
#define D_EVAL 301
#define D_CONDITION 302
#define D_STATEMENT 303

/* Value type.  */
#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
typedef int YYSTYPE;
# define YYSTYPE_IS_TRIVIAL 1
# define YYSTYPE_IS_DECLARED 1
#endif


extern YYSTYPE zzlval;


int zzparse (void);



/* Symbol kind.  */
enum yysymbol_kind_t
{
  YYSYMBOL_YYEMPTY = -2,
  YYSYMBOL_YYEOF = 0,                      /* "end of file"  */
  YYSYMBOL_YYerror = 1,                    /* error  */
  YYSYMBOL_YYUNDEF = 2,                    /* "invalid token"  */
  YYSYMBOL_D_BACKTRACE = 3,                /* D_BACKTRACE  */
  YYSYMBOL_D_BREAK = 4,                    /* D_BREAK  */
  YYSYMBOL_D_CLEAR = 5,                    /* D_CLEAR  */
  YYSYMBOL_D_CONTINUE = 6,                 /* D_CONTINUE  */
  YYSYMBOL_D_DELETE = 7,                   /* D_DELETE  */
  YYSYMBOL_D_DISABLE = 8,                  /* D_DISABLE  */
  YYSYMBOL_D_DOWN = 9,                     /* D_DOWN  */
  YYSYMBOL_D_ENABLE = 10,                  /* D_ENABLE  */
  YYSYMBOL_D_FINISH = 11,                  /* D_FINISH  */
  YYSYMBOL_D_FRAME = 12,                   /* D_FRAME  */
  YYSYMBOL_D_HELP = 13,                    /* D_HELP  */
  YYSYMBOL_D_IGNORE = 14,                  /* D_IGNORE  */
  YYSYMBOL_D_INFO = 15,                    /* D_INFO  */
  YYSYMBOL_D_LIST = 16,                    /* D_LIST  */
  YYSYMBOL_D_NEXT = 17,                    /* D_NEXT  */
  YYSYMBOL_D_NEXTI = 18,                   /* D_NEXTI  */
  YYSYMBOL_D_PRINT = 19,                   /* D_PRINT  */
  YYSYMBOL_D_PRINTF = 20,                  /* D_PRINTF  */
  YYSYMBOL_D_QUIT = 21,                    /* D_QUIT  */
  YYSYMBOL_D_RETURN = 22,                  /* D_RETURN  */
  YYSYMBOL_D_RUN = 23,                     /* D_RUN  */
  YYSYMBOL_D_SET = 24,                     /* D_SET  */
  YYSYMBOL_D_STEP = 25,                    /* D_STEP  */
  YYSYMBOL_D_STEPI = 26,                   /* D_STEPI  */
  YYSYMBOL_D_TBREAK = 27,                  /* D_TBREAK  */
  YYSYMBOL_D_UP = 28,                      /* D_UP  */
  YYSYMBOL_D_UNTIL = 29,                   /* D_UNTIL  */
  YYSYMBOL_D_DISPLAY = 30,                 /* D_DISPLAY  */
  YYSYMBOL_D_UNDISPLAY = 31,               /* D_UNDISPLAY  */
  YYSYMBOL_D_WATCH = 32,                   /* D_WATCH  */
  YYSYMBOL_D_UNWATCH = 33,                 /* D_UNWATCH  */
  YYSYMBOL_D_DUMP = 34,                    /* D_DUMP  */
  YYSYMBOL_D_TRACE = 35,                   /* D_TRACE  */
  YYSYMBOL_D_INT = 36,                     /* D_INT  */
  YYSYMBOL_D_STRING = 37,                  /* D_STRING  */
  YYSYMBOL_D_NODE = 38,                    /* D_NODE  */
  YYSYMBOL_D_VARIABLE = 39,                /* D_VARIABLE  */
  YYSYMBOL_D_OPTION = 40,                  /* D_OPTION  */
  YYSYMBOL_D_COMMANDS = 41,                /* D_COMMANDS  */
  YYSYMBOL_D_END = 42,                     /* D_END  */
  YYSYMBOL_D_SILENT = 43,                  /* D_SILENT  */
  YYSYMBOL_D_SOURCE = 44,                  /* D_SOURCE  */
  YYSYMBOL_D_SAVE = 45,                    /* D_SAVE  */
  YYSYMBOL_D_EVAL = 46,                    /* D_EVAL  */
  YYSYMBOL_D_CONDITION = 47,               /* D_CONDITION  */
  YYSYMBOL_D_STATEMENT = 48,               /* D_STATEMENT  */
  YYSYMBOL_49_ = 49,                       /* '='  */
  YYSYMBOL_50_ = 50,                       /* ','  */
  YYSYMBOL_51_ = 51,                       /* ':'  */
  YYSYMBOL_52_ = 52,                       /* '@'  */
  YYSYMBOL_53_ = 53,                       /* '+'  */
  YYSYMBOL_54_ = 54,                       /* '-'  */
  YYSYMBOL_55_ = 55,                       /* '['  */
  YYSYMBOL_56_ = 56,                       /* ']'  */
  YYSYMBOL_57_ = 57,                       /* '$'  */
  YYSYMBOL_58_n_ = 58,                     /* '\n'  */
  YYSYMBOL_YYACCEPT = 59,                  /* $accept  */
  YYSYMBOL_input = 60,                     /* input  */
  YYSYMBOL_line = 61,                      /* line  */
  YYSYMBOL_control_cmd = 62,               /* control_cmd  */
  YYSYMBOL_d_cmd = 63,                     /* d_cmd  */
  YYSYMBOL_frame_cmd = 64,                 /* frame_cmd  */
  YYSYMBOL_break_cmd = 65,                 /* break_cmd  */
  YYSYMBOL_set_want_nodeval = 66,          /* set_want_nodeval  */
  YYSYMBOL_eval_prologue = 67,             /* eval_prologue  */
  YYSYMBOL_statement_list = 68,            /* statement_list  */
  YYSYMBOL_69_1 = 69,                      /* @1  */
  YYSYMBOL_eval_cmd = 70,                  /* eval_cmd  */
  YYSYMBOL_command = 71,                   /* command  */
  YYSYMBOL_72_2 = 72,                      /* $@2  */
  YYSYMBOL_73_3 = 73,                      /* $@3  */
  YYSYMBOL_74_4 = 74,                      /* $@4  */
  YYSYMBOL_75_5 = 75,                      /* $@5  */
  YYSYMBOL_76_6 = 76,                      /* $@6  */
  YYSYMBOL_77_7 = 77,                      /* $@7  */
  YYSYMBOL_78_8 = 78,                      /* $@8  */
  YYSYMBOL_condition_exp = 79,             /* condition_exp  */
  YYSYMBOL_commands_arg = 80,              /* commands_arg  */
  YYSYMBOL_opt_param_list = 81,            /* opt_param_list  */
  YYSYMBOL_param_list = 82,                /* param_list  */
  YYSYMBOL_opt_string_node = 83,           /* opt_string_node  */
  YYSYMBOL_string_node = 84,               /* string_node  */
  YYSYMBOL_option_args = 85,               /* option_args  */
  YYSYMBOL_func_name = 86,                 /* func_name  */
  YYSYMBOL_location = 87,                  /* location  */
  YYSYMBOL_break_args = 88,                /* break_args  */
  YYSYMBOL_89_9 = 89,                      /* $@9  */
  YYSYMBOL_90_10 = 90,                     /* $@10  */
  YYSYMBOL_opt_variable = 91,              /* opt_variable  */
  YYSYMBOL_opt_string = 92,                /* opt_string  */
  YYSYMBOL_opt_node = 93,                  /* opt_node  */
  YYSYMBOL_help_args = 94,                 /* help_args  */
  YYSYMBOL_enable_args = 95,               /* enable_args  */
  YYSYMBOL_print_exp = 96,                 /* print_exp  */
  YYSYMBOL_print_args = 97,                /* print_args  */
  YYSYMBOL_printf_exp = 98,                /* printf_exp  */
  YYSYMBOL_printf_args = 99,               /* printf_args  */
  YYSYMBOL_list_args = 100,                /* list_args  */
  YYSYMBOL_integer_range = 101,            /* integer_range  */
  YYSYMBOL_opt_integer_list = 102,         /* opt_integer_list  */
  YYSYMBOL_integer_list = 103,             /* integer_list  */
  YYSYMBOL_exp_list = 104,                 /* exp_list  */
  YYSYMBOL_subscript = 105,                /* subscript  */
  YYSYMBOL_subscript_list = 106,           /* subscript_list  */
  YYSYMBOL_variable = 107,                 /* variable  */
  YYSYMBOL_node = 108,                     /* node  */
  YYSYMBOL_opt_plus_integer = 109,         /* opt_plus_integer  */
  YYSYMBOL_opt_integer = 110,              /* opt_integer  */
  YYSYMBOL_plus_integer = 111,             /* plus_integer  */
  YYSYMBOL_integer = 112,                  /* integer  */
  YYSYMBOL_nls = 113                       /* nls  */
};
typedef enum yysymbol_kind_t yysymbol_kind_t;




#ifdef short
# undef short
#endif

/* On compilers that do not define __PTRDIFF_MAX__ etc., make sure
   <limits.h> and (if available) <stdint.h> are included
   so that the code can choose integer types of a good width.  */

#ifndef __PTRDIFF_MAX__
# include <limits.h> /* INFRINGES ON USER NAME SPACE */
# if defined __STDC_VERSION__ && 199901 <= __STDC_VERSION__
#  include <stdint.h> /* INFRINGES ON USER NAME SPACE */
#  define YY_STDINT_H
# endif
#endif

/* Narrow types that promote to a signed type and that can represent a
   signed or unsigned integer of at least N bits.  In tables they can
   save space and decrease cache pressure.  Promoting to a signed type
   helps avoid bugs in integer arithmetic.  */

#ifdef __INT_LEAST8_MAX__
typedef __INT_LEAST8_TYPE__ yytype_int8;
#elif defined YY_STDINT_H
typedef int_least8_t yytype_int8;
#else
typedef signed char yytype_int8;
#endif

#ifdef __INT_LEAST16_MAX__
typedef __INT_LEAST16_TYPE__ yytype_int16;
#elif defined YY_STDINT_H
typedef int_least16_t yytype_int16;
#else
typedef short yytype_int16;
#endif

/* Work around bug in HP-UX 11.23, which defines these macros
   incorrectly for preprocessor constants.  This workaround can likely
   be removed in 2023, as HPE has promised support for HP-UX 11.23
   (aka HP-UX 11i v2) only through the end of 2022; see Table 2 of
   <https://h20195.www2.hpe.com/V2/getpdf.aspx/4AA4-7673ENW.pdf>.  */
#ifdef __hpux
# undef UINT_LEAST8_MAX
# undef UINT_LEAST16_MAX
# define UINT_LEAST8_MAX 255
# define UINT_LEAST16_MAX 65535
#endif

#if defined __UINT_LEAST8_MAX__ && __UINT_LEAST8_MAX__ <= __INT_MAX__
typedef __UINT_LEAST8_TYPE__ yytype_uint8;
#elif (!defined __UINT_LEAST8_MAX__ && defined YY_STDINT_H \
       && UINT_LEAST8_MAX <= INT_MAX)
typedef uint_least8_t yytype_uint8;
#elif !defined __UINT_LEAST8_MAX__ && UCHAR_MAX <= INT_MAX
typedef unsigned char yytype_uint8;
#else
typedef short yytype_uint8;
#endif

#if defined __UINT_LEAST16_MAX__ && __UINT_LEAST16_MAX__ <= __INT_MAX__
typedef __UINT_LEAST16_TYPE__ yytype_uint16;
#elif (!defined __UINT_LEAST16_MAX__ && defined YY_STDINT_H \
       && UINT_LEAST16_MAX <= INT_MAX)
typedef uint_least16_t yytype_uint16;
#elif !defined __UINT_LEAST16_MAX__ && USHRT_MAX <= INT_MAX
typedef unsigned short yytype_uint16;
#else
typedef int yytype_uint16;
#endif

#ifndef YYPTRDIFF_T
# if defined __PTRDIFF_TYPE__ && defined __PTRDIFF_MAX__
#  define YYPTRDIFF_T __PTRDIFF_TYPE__
#  define YYPTRDIFF_MAXIMUM __PTRDIFF_MAX__
# elif defined PTRDIFF_MAX
#  ifndef ptrdiff_t
#   include <stddef.h> /* INFRINGES ON USER NAME SPACE */
#  endif
#  define YYPTRDIFF_T ptrdiff_t
#  define YYPTRDIFF_MAXIMUM PTRDIFF_MAX
# else
#  define YYPTRDIFF_T long
#  define YYPTRDIFF_MAXIMUM LONG_MAX
# endif
#endif

#ifndef YYSIZE_T
# ifdef __SIZE_TYPE__
#  define YYSIZE_T __SIZE_TYPE__
# elif defined size_t
#  define YYSIZE_T size_t
# elif defined __STDC_VERSION__ && 199901 <= __STDC_VERSION__
#  include <stddef.h> /* INFRINGES ON USER NAME SPACE */
#  define YYSIZE_T size_t
# else
#  define YYSIZE_T unsigned
# endif
#endif

#define YYSIZE_MAXIMUM                                  \
  YY_CAST (YYPTRDIFF_T,                                 \
           (YYPTRDIFF_MAXIMUM < YY_CAST (YYSIZE_T, -1)  \
            ? YYPTRDIFF_MAXIMUM                         \
            : YY_CAST (YYSIZE_T, -1)))

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


/* Stored state numbers (used for stacks). */
typedef yytype_uint8 yy_state_t;

/* State numbers in computations.  */
typedef int yy_state_fast_t;

#ifndef YY_
# if defined YYENABLE_NLS && YYENABLE_NLS
#  if ENABLE_NLS
#   include <libintl.h> /* INFRINGES ON USER NAME SPACE */
#   define YY_(Msgid) dgettext ("bison-runtime", Msgid)
#  endif
# endif
# ifndef YY_
#  define YY_(Msgid) Msgid
# endif
#endif


#ifndef YY_ATTRIBUTE_PURE
# if defined __GNUC__ && 2 < __GNUC__ + (96 <= __GNUC_MINOR__)
#  define YY_ATTRIBUTE_PURE __attribute__ ((__pure__))
# else
#  define YY_ATTRIBUTE_PURE
# endif
#endif

#ifndef YY_ATTRIBUTE_UNUSED
# if defined __GNUC__ && 2 < __GNUC__ + (7 <= __GNUC_MINOR__)
#  define YY_ATTRIBUTE_UNUSED __attribute__ ((__unused__))
# else
#  define YY_ATTRIBUTE_UNUSED
# endif
#endif

/* Suppress unused-variable warnings by "using" E.  */
#if ! defined lint || defined __GNUC__
# define YY_USE(E) ((void) (E))
#else
# define YY_USE(E) /* empty */
#endif

/* Suppress an incorrect diagnostic about yylval being uninitialized.  */
#if defined __GNUC__ && ! defined __ICC && 406 <= __GNUC__ * 100 + __GNUC_MINOR__
# if __GNUC__ * 100 + __GNUC_MINOR__ < 407
#  define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN                           \
    _Pragma ("GCC diagnostic push")                                     \
    _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")
# else
#  define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN                           \
    _Pragma ("GCC diagnostic push")                                     \
    _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")              \
    _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
# endif
# define YY_IGNORE_MAYBE_UNINITIALIZED_END      \
    _Pragma ("GCC diagnostic pop")
#else
# define YY_INITIAL_VALUE(Value) Value
#endif
#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
# define YY_IGNORE_MAYBE_UNINITIALIZED_END
#endif
#ifndef YY_INITIAL_VALUE
# define YY_INITIAL_VALUE(Value) /* Nothing. */
#endif

#if defined __cplusplus && defined __GNUC__ && ! defined __ICC && 6 <= __GNUC__
# define YY_IGNORE_USELESS_CAST_BEGIN                          \
    _Pragma ("GCC diagnostic push")                            \
    _Pragma ("GCC diagnostic ignored \"-Wuseless-cast\"")
# define YY_IGNORE_USELESS_CAST_END            \
    _Pragma ("GCC diagnostic pop")
#endif
#ifndef YY_IGNORE_USELESS_CAST_BEGIN
# define YY_IGNORE_USELESS_CAST_BEGIN
# define YY_IGNORE_USELESS_CAST_END
#endif


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

#if !defined yyoverflow

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

# ifdef YYSTACK_USE_ALLOCA
#  if YYSTACK_USE_ALLOCA
#   ifdef __GNUC__
#    define YYSTACK_ALLOC __builtin_alloca
#   elif defined __BUILTIN_VA_ARG_INCR
#    include <alloca.h> /* INFRINGES ON USER NAME SPACE */
#   elif defined _AIX
#    define YYSTACK_ALLOC __alloca
#   elif defined _MSC_VER
#    include <malloc.h> /* INFRINGES ON USER NAME SPACE */
#    define alloca _alloca
#   else
#    define YYSTACK_ALLOC alloca
#    if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS
#     include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
      /* Use EXIT_SUCCESS as a witness for stdlib.h.  */
#     ifndef EXIT_SUCCESS
#      define EXIT_SUCCESS 0
#     endif
#    endif
#   endif
#  endif
# endif

# ifdef YYSTACK_ALLOC
   /* Pacify GCC's 'empty if-body' warning.  */
#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
#  ifndef YYSTACK_ALLOC_MAXIMUM
    /* The OS might guarantee only one guard page at the bottom of the stack,
       and a page size can be as small as 4096 bytes.  So we cannot safely
       invoke alloca (N) if N exceeds 4096.  Use a slightly smaller number
       to allow for a few compiler-allocated temporary stack slots.  */
#   define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
#  endif
# else
#  define YYSTACK_ALLOC YYMALLOC
#  define YYSTACK_FREE YYFREE
#  ifndef YYSTACK_ALLOC_MAXIMUM
#   define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
#  endif
#  if (defined __cplusplus && ! defined EXIT_SUCCESS \
       && ! ((defined YYMALLOC || defined malloc) \
             && (defined YYFREE || defined free)))
#   include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
#   ifndef EXIT_SUCCESS
#    define EXIT_SUCCESS 0
#   endif
#  endif
#  ifndef YYMALLOC
#   define YYMALLOC malloc
#   if ! defined malloc && ! defined EXIT_SUCCESS
void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
#   endif
#  endif
#  ifndef YYFREE
#   define YYFREE free
#   if ! defined free && ! defined EXIT_SUCCESS
void free (void *); /* INFRINGES ON USER NAME SPACE */
#   endif
#  endif
# endif
#endif /* !defined yyoverflow */

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

/* A type that is properly aligned for any stack member.  */
union yyalloc
{
  yy_state_t yyss_alloc;
  YYSTYPE yyvs_alloc;
};

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

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

# define YYCOPY_NEEDED 1

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

#endif

#if defined YYCOPY_NEEDED && YYCOPY_NEEDED
/* Copy COUNT objects from SRC to DST.  The source and destination do
   not overlap.  */
# ifndef YYCOPY
#  if defined __GNUC__ && 1 < __GNUC__
#   define YYCOPY(Dst, Src, Count) \
      __builtin_memcpy (Dst, Src, YY_CAST (YYSIZE_T, (Count)) * sizeof (*(Src)))
#  else
#   define YYCOPY(Dst, Src, Count)              \
      do                                        \
        {                                       \
          YYPTRDIFF_T yyi;                      \
          for (yyi = 0; yyi < (Count); yyi++)   \
            (Dst)[yyi] = (Src)[yyi];            \
        }                                       \
      while (0)
#  endif
# endif
#endif /* !YYCOPY_NEEDED */

/* YYFINAL -- State number of the termination state.  */
#define YYFINAL  2
/* YYLAST -- Last index in YYTABLE.  */
#define YYLAST   203

/* YYNTOKENS -- Number of terminals.  */
#define YYNTOKENS  59
/* YYNNTS -- Number of nonterminals.  */
#define YYNNTS  55
/* YYNRULES -- Number of rules.  */
#define YYNRULES  156
/* YYNSTATES -- Number of states.  */
#define YYNSTATES  203

/* YYMAXUTOK -- Last valid token kind.  */
#define YYMAXUTOK   303


/* YYTRANSLATE(TOKEN-NUM) -- Symbol number corresponding to TOKEN-NUM
   as returned by yylex, with out-of-bounds checking.  */
#define YYTRANSLATE(YYX)                                \
  (0 <= (YYX) && (YYX) <= YYMAXUTOK                     \
   ? YY_CAST (yysymbol_kind_t, yytranslate[YYX])        \
   : YYSYMBOL_YYUNDEF)

/* YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to TOKEN-NUM
   as returned by yylex.  */
static const yytype_int8 yytranslate[] =
{
       0,     2,     2,     2,     2,     2,     2,     2,     2,     2,
      58,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,    57,     2,     2,     2,
       2,     2,     2,    53,    50,    54,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,    51,     2,
       2,    49,     2,     2,    52,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,    55,     2,    56,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
       2,     2,     2,     2,     2,     2,     1,     2,     3,     4,
       5,     6,     7,     8,     9,    10,    11,    12,    13,    14,
      15,    16,    17,    18,    19,    20,    21,    22,    23,    24,
      25,    26,    27,    28,    29,    30,    31,    32,    33,    34,
      35,    36,    37,    38,    39,    40,    41,    42,    43,    44,
      45,    46,    47,    48
};

#if YYDEBUG
/* YYRLINE[YYN] -- Source line where rule number YYN was defined.  */
static const yytype_int16 yyrline[] =
{
       0,   110,   110,   111,   129,   130,   180,   187,   188,   189,
     190,   191,   195,   196,   197,   198,   202,   203,   204,   205,
     209,   210,   215,   219,   239,   246,   246,   253,   269,   283,
     284,   285,   286,   287,   288,   294,   306,   307,   308,   308,
     309,   309,   310,   311,   312,   313,   314,   314,   315,   316,
     316,   317,   317,   318,   318,   319,   320,   321,   326,   331,
     357,   367,   372,   384,   384,   392,   406,   419,   420,   426,
     427,   431,   432,   433,   434,   440,   441,   442,   447,   458,
     459,   464,   472,   489,   490,   491,   492,   493,   498,   499,
     499,   500,   501,   501,   502,   507,   508,   513,   514,   519,
     520,   524,   525,   529,   530,   545,   546,   551,   559,   560,
     561,   562,   566,   567,   571,   572,   573,   578,   579,   581,
     588,   589,   590,   591,   592,   593,   597,   610,   611,   612,
     616,   617,   618,   619,   623,   625,   627,   631,   646,   650,
     652,   657,   658,   667,   677,   679,   686,   699,   700,   706,
     707,   712,   718,   727,   729,   731,   739
};
#endif

/** Accessing symbol of state STATE.  */
#define YY_ACCESSING_SYMBOL(State) YY_CAST (yysymbol_kind_t, yystos[State])

#if YYDEBUG || 0
/* The user-facing name of the symbol whose (internal) number is
   YYSYMBOL.  No bounds checking.  */
static const char *yysymbol_name (yysymbol_kind_t yysymbol) YY_ATTRIBUTE_UNUSED;

/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
   First, the terminals, then, starting at YYNTOKENS, nonterminals.  */
static const char *const yytname[] =
{
  "\"end of file\"", "error", "\"invalid token\"", "D_BACKTRACE",
  "D_BREAK", "D_CLEAR", "D_CONTINUE", "D_DELETE", "D_DISABLE", "D_DOWN",
  "D_ENABLE", "D_FINISH", "D_FRAME", "D_HELP", "D_IGNORE", "D_INFO",
  "D_LIST", "D_NEXT", "D_NEXTI", "D_PRINT", "D_PRINTF", "D_QUIT",
  "D_RETURN", "D_RUN", "D_SET", "D_STEP", "D_STEPI", "D_TBREAK", "D_UP",
  "D_UNTIL", "D_DISPLAY", "D_UNDISPLAY", "D_WATCH", "D_UNWATCH", "D_DUMP",
  "D_TRACE", "D_INT", "D_STRING", "D_NODE", "D_VARIABLE", "D_OPTION",
  "D_COMMANDS", "D_END", "D_SILENT", "D_SOURCE", "D_SAVE", "D_EVAL",
  "D_CONDITION", "D_STATEMENT", "'='", "','", "':'", "'@'", "'+'", "'-'",
  "'['", "']'", "'$'", "'\\n'", "$accept", "input", "line", "control_cmd",
  "d_cmd", "frame_cmd", "break_cmd", "set_want_nodeval", "eval_prologue",
  "statement_list", "@1", "eval_cmd", "command", "$@2", "$@3", "$@4",
  "$@5", "$@6", "$@7", "$@8", "condition_exp", "commands_arg",
  "opt_param_list", "param_list", "opt_string_node", "string_node",
  "option_args", "func_name", "location", "break_args", "$@9", "$@10",
  "opt_variable", "opt_string", "opt_node", "help_args", "enable_args",
  "print_exp", "print_args", "printf_exp", "printf_args", "list_args",
  "integer_range", "opt_integer_list", "integer_list", "exp_list",
  "subscript", "subscript_list", "variable", "node", "opt_plus_integer",
  "opt_integer", "plus_integer", "integer", "nls", YY_NULLPTR
};

static const char *
yysymbol_name (yysymbol_kind_t yysymbol)
{
  return yytname[yysymbol];
}
#endif

#define YYPACT_NINF (-151)

#define yypact_value_is_default(Yyn) \
  ((Yyn) == YYPACT_NINF)

#define YYTABLE_NINF (-148)

#define yytable_value_is_error(Yyn) \
  0

/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
   STATE-NUM.  */
static const yytype_int16 yypact[] =
{
    -151,   145,  -151,   -34,  -151,  -151,    50,  -151,  -151,  -151,
    -151,    10,  -151,  -151,   -10,    59,    -9,    43,  -151,  -151,
    -151,  -151,  -151,  -151,  -151,  -151,  -151,  -151,  -151,  -151,
      50,  -151,  -151,  -151,  -151,    -8,    -6,    14,    12,  -151,
    -151,    22,    23,  -151,    59,  -151,  -151,    59,    13,    36,
      64,  -151,  -151,   -34,  -151,  -151,  -151,    24,    47,  -151,
    -151,  -151,  -151,    13,  -151,  -151,  -151,    59,    48,  -151,
    -151,    80,  -151,    67,    47,  -151,  -151,  -151,  -151,    48,
       4,    19,    69,   -20,  -151,   -20,   -20,  -151,  -151,  -151,
      70,  -151,  -151,  -151,  -151,  -151,  -151,  -151,    16,  -151,
    -151,  -151,  -151,    84,    85,  -151,  -151,    73,  -151,  -151,
    -151,    40,  -151,    74,  -151,  -151,  -151,    48,    59,  -151,
      74,  -151,    71,    89,    91,  -151,    42,  -151,  -151,  -151,
    -151,    81,  -151,  -151,    92,    94,  -151,  -151,    86,  -151,
    -151,     6,    96,  -151,  -151,  -151,   -34,    75,  -151,     6,
    -151,  -151,    74,     6,  -151,  -151,  -151,  -151,  -151,  -151,
    -151,  -151,    48,    31,  -151,    71,    71,  -151,    52,  -151,
     -17,  -151,  -151,    69,  -151,  -151,  -151,  -151,  -151,  -151,
    -151,    95,  -151,  -151,  -151,  -151,   -34,  -151,    17,  -151,
    -151,    71,  -151,  -151,  -151,  -151,     6,  -151,  -151,    69,
    -151,  -151,  -151
};

/* YYDEFACT[STATE-NUM] -- Default reduction number in state STATE-NUM.
   Performed when YYTABLE does not specify something else to do.  Zero
   means the default is an error.  */
static const yytype_uint8 yydefact[] =
{
       2,     0,     1,     0,    18,    20,    83,     7,    15,    14,
      17,     0,    32,    19,   101,     0,     0,   117,     8,     9,
      38,    40,    30,    49,    31,    46,    10,    11,    21,    16,
      83,    51,    12,    53,    13,    97,     0,    79,     0,    60,
      61,     0,     0,    22,     0,   156,     3,   147,     0,   149,
      88,    24,    65,     0,     4,     6,   151,    82,     0,    85,
      44,    84,   129,     0,    37,   131,   103,   128,   130,   102,
      29,     0,    35,    82,   118,   119,   121,    42,   122,   120,
       0,     0,    99,     0,    43,    95,     0,    98,    56,    62,
      80,    48,    68,    59,    67,   148,    57,    58,     0,    63,
      33,    55,   153,     0,     0,    34,   150,    82,    91,    45,
      89,     0,     5,     0,   152,   104,   133,   132,     0,    36,
       0,   111,   141,     0,     0,   108,    39,   105,   116,   112,
     114,    41,   113,   144,     0,     0,    50,   100,     0,    52,
      96,     0,     0,    74,    78,    71,     0,    70,    28,     0,
     154,   155,     0,     0,    27,    25,    82,    87,    86,   126,
     124,   125,   123,     0,   139,   143,   106,   142,     0,   109,
       0,   145,   146,     0,    77,    54,    66,    76,    81,    23,
      72,     0,    64,    94,    92,    90,     0,   136,     0,   134,
     140,   107,   110,   115,    47,    73,     0,    26,   138,     0,
     137,    93,   135
};

/* YYPGOTO[NTERM-NUM].  */
static const yytype_int16 yypgoto[] =
{
    -151,  -151,  -151,  -151,  -151,  -151,  -151,  -151,  -151,  -151,
    -151,  -151,  -151,  -151,  -151,  -151,  -151,  -151,  -151,  -151,
    -119,  -151,  -151,  -151,  -151,    38,  -151,   -15,   108,  -151,
    -151,  -151,  -151,  -151,  -151,  -151,  -151,   -90,  -151,   -31,
    -151,  -151,   -14,   -25,  -151,  -151,  -150,   -26,   -77,  -147,
      97,  -151,    -5,  -151,    -3
};

/* YYDEFGOTO[NTERM-NUM].  */
static const yytype_uint8 yydefgoto[] =
{
       0,     1,    46,    47,    48,    49,    50,    98,    51,   111,
     186,    52,    53,    80,    81,    83,    82,    85,    86,   149,
     175,    93,   146,   147,   176,   177,    91,    59,    60,   109,
     153,   196,   139,    88,   136,    70,    64,   125,   126,   130,
     131,    77,    65,    66,    67,   188,   164,   165,   127,   137,
      94,   105,    68,   106,    54
};

/* YYTABLE[YYPACT[STATE-NUM]] -- What to do in state STATE-NUM.  If
   positive, shift that token.  If negative, reduce the rule whose
   number is the opposite.  If YYTABLE_NINF, syntax error.  */
static const yytype_int16 yytable[] =
{
      55,    61,    76,    78,   132,   121,   138,   174,   140,   141,
      71,    62,    79,    92,    62,   190,   189,   143,   198,   122,
     128,   129,   122,   101,    45,    61,   194,    69,    72,    87,
     182,    89,   187,    95,   185,   108,   169,   124,   115,    99,
     124,   190,    95,   122,   144,   110,    56,    63,    56,    56,
     112,    90,   202,   116,   144,   145,   123,   129,   122,    96,
      97,   124,   117,    58,   -75,    58,    58,   199,  -127,   133,
    -147,  -127,   102,   200,   -69,   113,   124,   201,   192,    56,
      73,   122,   154,   114,   134,   135,    56,    57,   155,   103,
     104,   122,   168,   132,   123,    56,    74,    75,   157,   124,
      56,   107,   118,    58,   123,   160,   161,   133,   158,   124,
      56,   156,    58,   159,   180,   162,   119,    58,   120,   142,
     150,   151,   134,   135,   152,   181,   163,    58,   166,   167,
     171,   170,   172,   178,   195,   173,   148,   183,    84,   193,
     191,     0,     0,   179,   100,     2,     3,   184,     4,     5,
       6,     7,     8,     9,    10,    11,    12,    13,    14,    15,
      16,    17,    18,    19,    20,    21,    22,    23,    24,    25,
      26,    27,    28,    29,    30,    31,    32,    33,    34,    35,
      36,     0,     0,   197,     0,    37,    38,    39,    40,    41,
      42,    43,    44,     0,     0,     0,     0,     0,     0,     0,
       0,     0,     0,    45
};

static const yytype_int16 yycheck[] =
{
       3,     6,    17,    17,    81,     1,    83,     1,    85,    86,
      15,     1,    17,     1,     1,   165,   163,     1,     1,    39,
       1,    38,    39,    48,    58,    30,   173,    37,    37,    37,
     149,    37,     1,    38,   153,    50,   126,    57,    63,    44,
      57,   191,    47,    39,    38,    50,    36,    37,    36,    36,
      53,    37,   199,    67,    38,    39,    52,    38,    39,    37,
      37,    57,    67,    53,    58,    53,    53,    50,    58,    38,
      58,    58,    36,    56,    58,    51,    57,   196,   168,    36,
      37,    39,    42,    36,    53,    54,    36,    37,    48,    53,
      54,    39,    50,   170,    52,    36,    53,    54,   113,    57,
      36,    37,    54,    53,    52,   120,   120,    38,   113,    57,
      36,    37,    53,   118,    39,   120,    36,    53,    51,    49,
      36,    36,    53,    54,    51,    50,    55,    53,    39,    38,
      38,    50,    38,    37,    39,    49,    98,   152,    30,   170,
     166,    -1,    -1,   146,    47,     0,     1,   152,     3,     4,
       5,     6,     7,     8,     9,    10,    11,    12,    13,    14,
      15,    16,    17,    18,    19,    20,    21,    22,    23,    24,
      25,    26,    27,    28,    29,    30,    31,    32,    33,    34,
      35,    -1,    -1,   186,    -1,    40,    41,    42,    43,    44,
      45,    46,    47,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
      -1,    -1,    -1,    58
};

/* YYSTOS[STATE-NUM] -- The symbol kind of the accessing symbol of
   state STATE-NUM.  */
static const yytype_int8 yystos[] =
{
       0,    60,     0,     1,     3,     4,     5,     6,     7,     8,
       9,    10,    11,    12,    13,    14,    15,    16,    17,    18,
      19,    20,    21,    22,    23,    24,    25,    26,    27,    28,
      29,    30,    31,    32,    33,    34,    35,    40,    41,    42,
      43,    44,    45,    46,    47,    58,    61,    62,    63,    64,
      65,    67,    70,    71,   113,   113,    36,    37,    53,    86,
      87,   111,     1,    37,    95,   101,   102,   103,   111,    37,
      94,   111,    37,    37,    53,    54,    86,   100,   101,   111,
      72,    73,    75,    74,    87,    76,    77,    37,    92,    37,
      37,    85,     1,    80,   109,   111,    37,    37,    66,   111,
     109,   102,    36,    53,    54,   110,   112,    37,    86,    88,
     111,    68,   113,    51,    36,   102,   101,   111,    54,    36,
      51,     1,    39,    52,    57,    96,    97,   107,     1,    38,
      98,    99,   107,    38,    53,    54,    93,   108,   107,    91,
     107,   107,    49,     1,    38,    39,    81,    82,    84,    78,
      36,    36,    51,    89,    42,    48,    37,    86,   111,   111,
      86,   101,   111,    55,   105,   106,    39,    38,    50,    96,
      50,    38,    38,    49,     1,    79,    83,    84,    37,   113,
      39,    50,    79,    86,   111,    79,    69,     1,   104,   108,
     105,   106,    96,    98,   108,    39,    90,   113,     1,    50,
      56,    79,   108
};

/* YYR1[RULE-NUM] -- Symbol kind of the left-hand side of rule RULE-NUM.  */
static const yytype_int8 yyr1[] =
{
       0,    59,    60,    60,    61,    61,    61,    62,    62,    62,
      62,    62,    63,    63,    63,    63,    64,    64,    64,    64,
      65,    65,    66,    67,    68,    69,    68,    70,    70,    71,
      71,    71,    71,    71,    71,    71,    71,    71,    72,    71,
      73,    71,    71,    71,    71,    71,    74,    71,    71,    75,
      71,    76,    71,    77,    71,    71,    71,    71,    71,    71,
      71,    71,    71,    78,    71,    71,    79,    80,    80,    81,
      81,    82,    82,    82,    82,    83,    83,    83,    84,    85,
      85,    85,    86,    87,    87,    87,    87,    87,    88,    89,
      88,    88,    90,    88,    88,    91,    91,    92,    92,    93,
      93,    94,    94,    95,    95,    96,    96,    96,    97,    97,
      97,    97,    98,    98,    99,    99,    99,   100,   100,   100,
     100,   100,   100,   100,   100,   100,   101,   102,   102,   102,
     103,   103,   103,   103,   104,   104,   104,   105,   105,   106,
     106,   107,   107,   107,   108,   108,   108,   109,   109,   110,
     110,   111,   111,   112,   112,   112,   113
};

/* YYR2[RULE-NUM] -- Number of symbols on the right-hand side of rule RULE-NUM.  */
static const yytype_int8 yyr2[] =
{
       0,     2,     0,     2,     1,     2,     2,     1,     1,     1,
       1,     1,     1,     1,     1,     1,     1,     1,     1,     1,
       1,     1,     0,     4,     0,     0,     4,     3,     3,     2,
       1,     1,     1,     2,     2,     2,     3,     2,     0,     3,
       0,     3,     2,     2,     2,     2,     0,     5,     2,     0,
       3,     0,     3,     0,     4,     2,     2,     2,     2,     2,
       1,     1,     2,     0,     4,     1,     1,     1,     1,     0,
       1,     1,     2,     3,     1,     0,     1,     1,     1,     0,
       1,     3,     1,     0,     1,     1,     3,     3,     0,     0,
       3,     1,     0,     5,     3,     0,     1,     0,     1,     0,
       1,     0,     1,     1,     2,     1,     2,     3,     1,     2,
       3,     1,     1,     1,     1,     3,     1,     0,     1,     1,
       1,     1,     1,     3,     3,     3,     3,     0,     1,     1,
       1,     1,     2,     2,     1,     3,     1,     3,     3,     1,
       2,     1,     2,     2,     1,     2,     2,     0,     1,     0,
       1,     1,     2,     1,     2,     2,     1
};


enum { YYENOMEM = -2 };

#define yyerrok         (yyerrstatus = 0)
#define yyclearin       (yychar = YYEMPTY)

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


#define YYRECOVERING()  (!!yyerrstatus)

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

/* Backward compatibility with an undocumented macro.
   Use YYerror or YYUNDEF. */
#define YYERRCODE YYUNDEF


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

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

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




# define YY_SYMBOL_PRINT(Title, Kind, Value, Location)                    \
do {                                                                      \
  if (yydebug)                                                            \
    {                                                                     \
      YYFPRINTF (stderr, "%s ", Title);                                   \
      yy_symbol_print (stderr,                                            \
                  Kind, Value); \
      YYFPRINTF (stderr, "\n");                                           \
    }                                                                     \
} while (0)


/*-----------------------------------.
| Print this symbol's value on YYO.  |
`-----------------------------------*/

static void
yy_symbol_value_print (FILE *yyo,
                       yysymbol_kind_t yykind, YYSTYPE const * const yyvaluep)
{
  FILE *yyoutput = yyo;
  YY_USE (yyoutput);
  if (!yyvaluep)
    return;
  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
  YY_USE (yykind);
  YY_IGNORE_MAYBE_UNINITIALIZED_END
}


/*---------------------------.
| Print this symbol on YYO.  |
`---------------------------*/

static void
yy_symbol_print (FILE *yyo,
                 yysymbol_kind_t yykind, YYSTYPE const * const yyvaluep)
{
  YYFPRINTF (yyo, "%s %s (",
             yykind < YYNTOKENS ? "token" : "nterm", yysymbol_name (yykind));

  yy_symbol_value_print (yyo, yykind, yyvaluep);
  YYFPRINTF (yyo, ")");
}

/*------------------------------------------------------------------.
| yy_stack_print -- Print the state stack from its BOTTOM up to its |
| TOP (included).                                                   |
`------------------------------------------------------------------*/

static void
yy_stack_print (yy_state_t *yybottom, yy_state_t *yytop)
{
  YYFPRINTF (stderr, "Stack now");
  for (; yybottom <= yytop; yybottom++)
    {
      int yybot = *yybottom;
      YYFPRINTF (stderr, " %d", yybot);
    }
  YYFPRINTF (stderr, "\n");
}

# define YY_STACK_PRINT(Bottom, Top)                            \
do {                                                            \
  if (yydebug)                                                  \
    yy_stack_print ((Bottom), (Top));                           \
} while (0)


/*------------------------------------------------.
| Report that the YYRULE is going to be reduced.  |
`------------------------------------------------*/

static void
yy_reduce_print (yy_state_t *yyssp, YYSTYPE *yyvsp,
                 int yyrule)
{
  int yylno = yyrline[yyrule];
  int yynrhs = yyr2[yyrule];
  int yyi;
  YYFPRINTF (stderr, "Reducing stack by rule %d (line %d):\n",
             yyrule - 1, yylno);
  /* The symbols being reduced.  */
  for (yyi = 0; yyi < yynrhs; yyi++)
    {
      YYFPRINTF (stderr, "   $%d = ", yyi + 1);
      yy_symbol_print (stderr,
                       YY_ACCESSING_SYMBOL (+yyssp[yyi + 1 - yynrhs]),
                       &yyvsp[(yyi + 1) - (yynrhs)]);
      YYFPRINTF (stderr, "\n");
    }
}

# define YY_REDUCE_PRINT(Rule)          \
do {                                    \
  if (yydebug)                          \
    yy_reduce_print (yyssp, yyvsp, Rule); \
} while (0)

/* Nonzero means print parse trace.  It is left uninitialized so that
   multiple parsers can coexist.  */
int yydebug;
#else /* !YYDEBUG */
# define YYDPRINTF(Args) ((void) 0)
# define YY_SYMBOL_PRINT(Title, Kind, 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






/*-----------------------------------------------.
| Release the memory associated to this symbol.  |
`-----------------------------------------------*/

static void
yydestruct (const char *yymsg,
            yysymbol_kind_t yykind, YYSTYPE *yyvaluep)
{
  YY_USE (yyvaluep);
  if (!yymsg)
    yymsg = "Deleting";
  YY_SYMBOL_PRINT (yymsg, yykind, yyvaluep, yylocationp);

  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
  YY_USE (yykind);
  YY_IGNORE_MAYBE_UNINITIALIZED_END
}


/* Lookahead token kind.  */
int yychar;

/* The semantic value of the lookahead symbol.  */
YYSTYPE yylval;
/* Number of syntax errors so far.  */
int yynerrs;




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

int
yyparse (void)
{
    yy_state_fast_t yystate = 0;
    /* Number of tokens to shift before error messages enabled.  */
    int yyerrstatus = 0;

    /* Refer to the stacks through separate pointers, to allow yyoverflow
       to reallocate them elsewhere.  */

    /* Their size.  */
    YYPTRDIFF_T yystacksize = YYINITDEPTH;

    /* The state stack: array, bottom, top.  */
    yy_state_t yyssa[YYINITDEPTH];
    yy_state_t *yyss = yyssa;
    yy_state_t *yyssp = yyss;

    /* The semantic value stack: array, bottom, top.  */
    YYSTYPE yyvsa[YYINITDEPTH];
    YYSTYPE *yyvs = yyvsa;
    YYSTYPE *yyvsp = yyvs;

  int yyn;
  /* The return value of yyparse.  */
  int yyresult;
  /* Lookahead symbol kind.  */
  yysymbol_kind_t yytoken = YYSYMBOL_YYEMPTY;
  /* The variables used to return semantic value and location from the
     action routines.  */
  YYSTYPE yyval;



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

  /* 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"));

  yychar = YYEMPTY; /* Cause a token to be read.  */

  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 -- set current state (the top of the stack) to yystate.  |
`--------------------------------------------------------------------*/
yysetstate:
  YYDPRINTF ((stderr, "Entering state %d\n", yystate));
  YY_ASSERT (0 <= yystate && yystate < YYNSTATES);
  YY_IGNORE_USELESS_CAST_BEGIN
  *yyssp = YY_CAST (yy_state_t, yystate);
  YY_IGNORE_USELESS_CAST_END
  YY_STACK_PRINT (yyss, yyssp);

  if (yyss + yystacksize - 1 <= yyssp)
#if !defined yyoverflow && !defined YYSTACK_RELOCATE
    YYNOMEM;
#else
    {
      /* Get the current used size of the three stacks, in elements.  */
      YYPTRDIFF_T yysize = yyssp - yyss + 1;

# if defined 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.  */
        yy_state_t *yyss1 = yyss;
        YYSTYPE *yyvs1 = yyvs;

        /* 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 * YYSIZEOF (*yyssp),
                    &yyvs1, yysize * YYSIZEOF (*yyvsp),
                    &yystacksize);
        yyss = yyss1;
        yyvs = yyvs1;
      }
# else /* defined YYSTACK_RELOCATE */
      /* Extend the stack our own way.  */
      if (YYMAXDEPTH <= yystacksize)
        YYNOMEM;
      yystacksize *= 2;
      if (YYMAXDEPTH < yystacksize)
        yystacksize = YYMAXDEPTH;

      {
        yy_state_t *yyss1 = yyss;
        union yyalloc *yyptr =
          YY_CAST (union yyalloc *,
                   YYSTACK_ALLOC (YY_CAST (YYSIZE_T, YYSTACK_BYTES (yystacksize))));
        if (! yyptr)
          YYNOMEM;
        YYSTACK_RELOCATE (yyss_alloc, yyss);
        YYSTACK_RELOCATE (yyvs_alloc, yyvs);
#  undef YYSTACK_RELOCATE
        if (yyss1 != yyssa)
          YYSTACK_FREE (yyss1);
      }
# endif

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

      YY_IGNORE_USELESS_CAST_BEGIN
      YYDPRINTF ((stderr, "Stack size increased to %ld\n",
                  YY_CAST (long, yystacksize)));
      YY_IGNORE_USELESS_CAST_END

      if (yyss + yystacksize - 1 <= yyssp)
        YYABORT;
    }
#endif /* !defined yyoverflow && !defined YYSTACK_RELOCATE */


  if (yystate == YYFINAL)
    YYACCEPT;

  goto yybackup;


/*-----------.
| yybackup.  |
`-----------*/
yybackup:
  /* Do appropriate processing given the current state.  Read a
     lookahead token if we need one and don't already have one.  */

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

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

  /* YYCHAR is either empty, or end-of-input, or a valid lookahead.  */
  if (yychar == YYEMPTY)
    {
      YYDPRINTF ((stderr, "Reading a token\n"));
      yychar = yylex ();
    }

  if (yychar <= YYEOF)
    {
      yychar = YYEOF;
      yytoken = YYSYMBOL_YYEOF;
      YYDPRINTF ((stderr, "Now at end of input.\n"));
    }
  else if (yychar == YYerror)
    {
      /* The scanner already issued an error message, process directly
         to error recovery.  But do not keep the error token as
         lookahead, it is too special and may lead us to an endless
         loop in error recovery. */
      yychar = YYUNDEF;
      yytoken = YYSYMBOL_YYerror;
      goto yyerrlab1;
    }
  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 (yytable_value_is_error (yyn))
        goto yyerrlab;
      yyn = -yyn;
      goto yyreduce;
    }

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

  /* Shift the lookahead token.  */
  YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
  yystate = yyn;
  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
  *++yyvsp = yylval;
  YY_IGNORE_MAYBE_UNINITIALIZED_END

  /* Discard the shifted token.  */
  yychar = YYEMPTY;
  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];


  YY_REDUCE_PRINT (yyn);
  switch (yyn)
    {
  case 3: /* input: input line  */
#line 112 "command.y"
          {
		cmd_idx = -1;
		want_nodeval = false;
		if (lexptr_begin != NULL) {
			if (input_from_tty && lexptr_begin[0] != '\0')
				add_history(lexptr_begin);
			efree(lexptr_begin);
			lexptr_begin = NULL;
		}
		if (arg_list != NULL) {
			free_cmdarg(arg_list);
			arg_list = NULL;
		}
	  }
#line 1556 "command.c"
    break;

  case 5: /* line: command nls  */
#line 131 "command.y"
          {
		if (dbg_errcount == 0 && cmd_idx >= 0) {
			Func_cmd cmdfunc;
			bool terminate = false;
			CMDARG *args;
			int ctype = 0;

			ctype = cmdtab[cmd_idx].type;

			/* a blank line repeats previous command
			 * (list, next, nexti, step, stepi and continue without arguments).
			 * save the index in the command table; used in yylex
			 */
			if ((ctype == D_list
					|| ctype == D_next
					|| ctype == D_step
					|| ctype == D_nexti
					|| ctype == D_stepi
					|| ctype == D_continue)
				&& arg_list == NULL
				&& ! in_commands
				&& input_from_tty
			)
				repeat_idx = cmd_idx;
			else
				repeat_idx = -1;

			/* call the command handler; reset the globals arg_list, cmd_idx,
			 * since this handler could invoke yyparse again.
			 * call do_commands for the list of commands in `commands';
			 * arg_list isn't freed on return.
			 */

			cmdfunc = cmdtab[cmd_idx].cf_ptr;
			if (in_commands)
				cmdfunc = do_commands;
			cmd_idx = -1;
			want_nodeval = false;

			args = arg_list;
			arg_list = NULL;

			terminate = (*cmdfunc)(args, ctype);
			if (! in_commands || ctype == D_commands)
				free_cmdarg(args);
			if (terminate)
				YYACCEPT;
		}
	  }
#line 1610 "command.c"
    break;

  case 6: /* line: error nls  */
#line 181 "command.y"
          {
		yyerrok;
	  }
#line 1618 "command.c"
    break;

  case 22: /* set_want_nodeval: %empty  */
#line 215 "command.y"
          { want_nodeval = true; }
#line 1624 "command.c"
    break;

  case 23: /* eval_prologue: D_EVAL set_want_nodeval opt_param_list nls  */
#line 220 "command.y"
          {
		if (dbg_errcount == 0) {
			/* don't free arg_list;	passed on to statement_list
			 * non-terminal (empty rule action). See below.
			 */
			if (input_from_tty) {
				dbg_prompt = eval_prompt;
				fprintf(out_fp,
		_("Type (g)awk statement(s). End with the command `end'\n"));
				rl_inhibit_completion = 1;
			}
			cmd_idx = -1;
			in_eval = true;
		}
	  }
#line 1644 "command.c"
    break;

  case 24: /* statement_list: %empty  */
#line 239 "command.y"
          {
		yyval = append_statement(arg_list, (char *) start_EVAL);
		if (read_a_line == read_commands_string)	/* unserializing 'eval' in 'commands' */
			yyval->a_string[0] = '\0';
		free_cmdarg(arg_list);
		arg_list = NULL;
	  }
#line 1656 "command.c"
    break;

  case 25: /* @1: %empty  */
#line 246 "command.y"
                                     { yyval = append_statement(yyvsp[-1], lexptr_begin); }
#line 1662 "command.c"
    break;

  case 26: /* statement_list: statement_list D_STATEMENT @1 nls  */
#line 247 "command.y"
          {
		yyval = yyvsp[-1];
	  }
#line 1670 "command.c"
    break;

  case 27: /* eval_cmd: eval_prologue statement_list D_END  */
#line 254 "command.y"
          {
		arg_list = append_statement(yyvsp[-1], (char *) end_EVAL);
		if (read_a_line == read_commands_string) {	/* unserializing 'eval' in 'commands' */
			char *str = arg_list->a_string;
			size_t len = strlen(str);
			assert(len > 2 && str[len - 2] == '}');
			str[len - 2] = '\0';
		}
		if (input_from_tty) {
			dbg_prompt = in_commands ? commands_prompt : dgawk_prompt;
			rl_inhibit_completion = 0;
		}
		cmd_idx = find_command("eval", 4);
		in_eval = false;
	  }
#line 1690 "command.c"
    break;

  case 28: /* eval_cmd: D_EVAL set_want_nodeval string_node  */
#line 270 "command.y"
          {
		NODE *n;
		CMDARG *arg;
		n = yyvsp[0]->a_node;
		arg = append_statement(NULL, (char *) start_EVAL);
		(void) append_statement(arg, n->stptr);
		(void) append_statement(arg, (char *) end_EVAL);
		free_cmdarg(arg_list);
		arg_list = arg;
	  }
#line 1705 "command.c"
    break;

  case 34: /* command: frame_cmd opt_integer  */
#line 289 "command.y"
          {
		if (cmdtab[cmd_idx].lex_class == D_FRAME
				&& yyvsp[0] != NULL && yyvsp[0]->a_int < 0)
			yyerror(_("invalid frame number: %d"), yyvsp[0]->a_int);
	  }
#line 1715 "command.c"
    break;

  case 35: /* command: D_INFO D_STRING  */
#line 295 "command.y"
          {
		int idx = find_argument(yyvsp[0]);
		if (idx < 0)
			yyerror(_("info: invalid option - `%s'"), yyvsp[0]->a_string);
		else {
			efree(yyvsp[0]->a_string);
			yyvsp[0]->a_string = NULL;
			yyvsp[0]->type = D_argument;
			yyvsp[0]->a_argument = argtab[idx].value;
		}
	  }
#line 1731 "command.c"
    break;

  case 38: /* $@2: %empty  */
#line 308 "command.y"
                  { want_nodeval = true; }
#line 1737 "command.c"
    break;

  case 40: /* $@3: %empty  */
#line 309 "command.y"
                   { want_nodeval = true; }
#line 1743 "command.c"
    break;

  case 46: /* $@4: %empty  */
#line 314 "command.y"
                { want_nodeval = true; }
#line 1749 "command.c"
    break;

  case 49: /* $@5: %empty  */
#line 316 "command.y"
                   { want_nodeval = true; }
#line 1755 "command.c"
    break;

  case 51: /* $@6: %empty  */
#line 317 "command.y"
                    { want_nodeval = true; }
#line 1761 "command.c"
    break;

  case 53: /* $@7: %empty  */
#line 318 "command.y"
                  { want_nodeval = true; }
#line 1767 "command.c"
    break;

  case 57: /* command: D_SOURCE D_STRING  */
#line 322 "command.y"
          {
		if (in_cmd_src(yyvsp[0]->a_string))
			yyerror(_("source: `%s': already sourced"), yyvsp[0]->a_string);
	  }
#line 1776 "command.c"
    break;

  case 58: /* command: D_SAVE D_STRING  */
#line 327 "command.y"
          {
		if (! input_from_tty)
			yyerror(_("save: `%s': command not permitted"), yyvsp[0]->a_string);
	  }
#line 1785 "command.c"
    break;

  case 59: /* command: D_COMMANDS commands_arg  */
#line 332 "command.y"
          {
		int type = 0;
		int num;

		if (yyvsp[0] != NULL)
			num = yyvsp[0]->a_int;

		if (dbg_errcount != 0)
			;
		else if (in_commands)
			yyerror(_("cannot use command `commands' for breakpoint/watchpoint commands"));
		else if (yyvsp[0] == NULL &&  ! (type = has_break_or_watch_point(&num, true)))
			yyerror(_("no breakpoint/watchpoint has been set yet"));
		else if (yyvsp[0] != NULL && ! (type = has_break_or_watch_point(&num, false)))
			yyerror(_("invalid breakpoint/watchpoint number"));
		if (type) {
			in_commands = true;
			if (input_from_tty) {
				dbg_prompt = commands_prompt;
				fprintf(out_fp, _("Type commands for when %s %d is hit, one per line.\n"),
								(type == D_break) ? "breakpoint" : "watchpoint", num);
				fprintf(out_fp, _("End with the command `end'\n"));
			}
		}
	  }
#line 1815 "command.c"
    break;

  case 60: /* command: D_END  */
#line 358 "command.y"
          {
		if (! in_commands)
			yyerror(_("`end' valid only in command `commands' or `eval'"));
		else {
			if (input_from_tty)
				dbg_prompt = dgawk_prompt;
			in_commands = false;
		}
	  }
#line 1829 "command.c"
    break;

  case 61: /* command: D_SILENT  */
#line 368 "command.y"
          {
		if (! in_commands)
			yyerror(_("`silent' valid only in command `commands'"));
	  }
#line 1838 "command.c"
    break;

  case 62: /* command: D_TRACE D_STRING  */
#line 373 "command.y"
          {
		int idx = find_argument(yyvsp[0]);
		if (idx < 0)
			yyerror(_("trace: invalid option - `%s'"), yyvsp[0]->a_string);
		else {
			efree(yyvsp[0]->a_string);
			yyvsp[0]->a_string = NULL;
			yyvsp[0]->type = D_argument;
			yyvsp[0]->a_argument = argtab[idx].value;
		}
	  }
#line 1854 "command.c"
    break;

  case 63: /* $@8: %empty  */
#line 384 "command.y"
                                   { want_nodeval = true; }
#line 1860 "command.c"
    break;

  case 64: /* command: D_CONDITION plus_integer $@8 condition_exp  */
#line 385 "command.y"
          {
		int type;
		int num = yyvsp[-2]->a_int;
		type = has_break_or_watch_point(&num, false);
		if (! type)
			yyerror(_("condition: invalid breakpoint/watchpoint number"));
	  }
#line 1872 "command.c"
    break;

  case 65: /* command: eval_cmd  */
#line 393 "command.y"
          {
		if (in_commands) {
			/* Prepend command 'eval' to argument list */
			CMDARG *arg;
			arg = mk_cmdarg(D_string);
			arg->a_string = estrdup("eval", 4);
			arg->next = arg_list;
			arg_list = arg;
		}
	  }
#line 1887 "command.c"
    break;

  case 66: /* condition_exp: opt_string_node  */
#line 407 "command.y"
          {
		if (yyvsp[0] != NULL) {
			NODE *n = yyvsp[0]->a_node;
			yyvsp[0]->type = D_string;
			yyvsp[0]->a_string = n->stptr;
			freenode(n);
		}
		yyval = yyvsp[0];
	  }
#line 1901 "command.c"
    break;

  case 68: /* commands_arg: error  */
#line 421 "command.y"
          {	yyval = NULL; }
#line 1907 "command.c"
    break;

  case 69: /* opt_param_list: %empty  */
#line 426 "command.y"
          { yyval = NULL; }
#line 1913 "command.c"
    break;

  case 74: /* param_list: error  */
#line 435 "command.y"
          { yyval = NULL; }
#line 1919 "command.c"
    break;

  case 75: /* opt_string_node: %empty  */
#line 440 "command.y"
          { yyval = NULL; }
#line 1925 "command.c"
    break;

  case 77: /* opt_string_node: error  */
#line 443 "command.y"
          { yyval = NULL; }
#line 1931 "command.c"
    break;

  case 78: /* string_node: D_NODE  */
#line 448 "command.y"
          {
		NODE *n;
		n = yyvsp[0]->a_node;
		if ((n->flags & STRING) == 0)
			yyerror(_("argument not a string"));
	  }
#line 1942 "command.c"
    break;

  case 79: /* option_args: %empty  */
#line 458 "command.y"
          { yyval = NULL; }
#line 1948 "command.c"
    break;

  case 80: /* option_args: D_STRING  */
#line 460 "command.y"
          {
		if (find_option(yyvsp[0]->a_string) < 0)
			yyerror(_("option: invalid parameter - `%s'"), yyvsp[0]->a_string);
 	  }
#line 1957 "command.c"
    break;

  case 81: /* option_args: D_STRING '=' D_STRING  */
#line 465 "command.y"
          {
		if (find_option(yyvsp[-2]->a_string) < 0)
			yyerror(_("option: invalid parameter - `%s'"), yyvsp[-2]->a_string);
 	  }
#line 1966 "command.c"
    break;

  case 82: /* func_name: D_STRING  */
#line 473 "command.y"
          {
		NODE *n;
		n = lookup(yyvsp[0]->a_string);
		if (n == NULL || n->type != Node_func)
			yyerror(_("no such function - `%s'"), yyvsp[0]->a_string);
		else {
			yyvsp[0]->type = D_func;
			efree(yyvsp[0]->a_string);
			yyvsp[0]->a_string = NULL;
			yyvsp[0]->a_node = n;
		}
	  }
#line 1983 "command.c"
    break;

  case 83: /* location: %empty  */
#line 489 "command.y"
          { yyval = NULL; }
#line 1989 "command.c"
    break;

  case 88: /* break_args: %empty  */
#line 498 "command.y"
          { yyval = NULL; }
#line 1995 "command.c"
    break;

  case 89: /* $@9: %empty  */
#line 499 "command.y"
                       { want_nodeval = true; }
#line 2001 "command.c"
    break;

  case 92: /* $@10: %empty  */
#line 501 "command.y"
                                    { want_nodeval = true; }
#line 2007 "command.c"
    break;

  case 95: /* opt_variable: %empty  */
#line 507 "command.y"
          { yyval = NULL; }
#line 2013 "command.c"
    break;

  case 97: /* opt_string: %empty  */
#line 513 "command.y"
          { yyval = NULL; }
#line 2019 "command.c"
    break;

  case 99: /* opt_node: %empty  */
#line 519 "command.y"
          { yyval = NULL; }
#line 2025 "command.c"
    break;

  case 104: /* enable_args: D_STRING opt_integer_list  */
#line 531 "command.y"
          {
		int idx = find_argument(yyvsp[-1]);
		if (idx < 0)
			yyerror(_("enable: invalid option - `%s'"), yyvsp[-1]->a_string);
		else {
			efree(yyvsp[-1]->a_string);
			yyvsp[-1]->a_string = NULL;
			yyvsp[-1]->type = D_argument;
			yyvsp[-1]->a_argument = argtab[idx].value;
		}
	  }
#line 2041 "command.c"
    break;

  case 106: /* print_exp: '@' D_VARIABLE  */
#line 547 "command.y"
          {
		yyvsp[0]->type = D_array;	/* dump all items */
		yyvsp[0]->a_count = 0;
	  }
#line 2050 "command.c"
    break;

  case 107: /* print_exp: '@' D_VARIABLE subscript_list  */
#line 552 "command.y"
          {
		yyvsp[-1]->type = D_array;
		yyvsp[-1]->a_count = num_dim;
	  }
#line 2059 "command.c"
    break;

  case 117: /* list_args: %empty  */
#line 578 "command.y"
          { yyval = NULL; }
#line 2065 "command.c"
    break;

  case 118: /* list_args: '+'  */
#line 580 "command.y"
          { yyval = NULL; }
#line 2071 "command.c"
    break;

  case 119: /* list_args: '-'  */
#line 582 "command.y"
          {
		CMDARG *a;
		a = mk_cmdarg(D_int);
		a->a_int = -1;
		append_cmdarg(a);
	  }
#line 2082 "command.c"
    break;

  case 126: /* integer_range: plus_integer '-' plus_integer  */
#line 598 "command.y"
          {
		if (yyvsp[-2]->a_int > yyvsp[0]->a_int)
			yyerror(_("invalid range specification: %d - %d"),
				yyvsp[-2]->a_int, yyvsp[0]->a_int);
		else
			yyvsp[-2]->type = D_range;
		yyval = yyvsp[-2];
	  }
#line 2095 "command.c"
    break;

  case 127: /* opt_integer_list: %empty  */
#line 610 "command.y"
          { yyval = NULL; }
#line 2101 "command.c"
    break;

  case 134: /* exp_list: node  */
#line 624 "command.y"
          { yyval = yyvsp[0]; }
#line 2107 "command.c"
    break;

  case 135: /* exp_list: exp_list ',' node  */
#line 626 "command.y"
          { yyval = yyvsp[-2]; }
#line 2113 "command.c"
    break;

  case 137: /* subscript: '[' exp_list ']'  */
#line 632 "command.y"
          {
		CMDARG *a;
		NODE *subs;
		int count = 0;

		for (a = yyvsp[-1]; a != NULL; a = a->next)
			count++;
		subs = concat_args(yyvsp[-1], count);
		free_cmdarg(yyvsp[-1]->next);
		yyvsp[-1]->next = NULL;
		yyvsp[-1]->type = D_node;
		yyvsp[-1]->a_node = subs;
		yyval = yyvsp[-1];
	  }
#line 2132 "command.c"
    break;

  case 139: /* subscript_list: subscript  */
#line 651 "command.y"
          { yyval = yyvsp[0]; num_dim = 1; }
#line 2138 "command.c"
    break;

  case 140: /* subscript_list: subscript_list subscript  */
#line 653 "command.y"
          {	yyval = yyvsp[-1]; num_dim++; }
#line 2144 "command.c"
    break;

  case 142: /* variable: '$' D_NODE  */
#line 659 "command.y"
          {
		NODE *n = yyvsp[0]->a_node;
		if ((n->flags & NUMBER) == 0)
			yyerror(_("non-numeric value for field number"));
		else
			yyvsp[0]->type = D_field;
		yyval = yyvsp[0];
	  }
#line 2157 "command.c"
    break;

  case 143: /* variable: D_VARIABLE subscript_list  */
#line 668 "command.y"
          {
		/* a_string is array name, a_count is dimension count */
		yyvsp[-1]->type = D_subscript;
		yyvsp[-1]->a_count = num_dim;
		yyval = yyvsp[-1];
	  }
#line 2168 "command.c"
    break;

  case 144: /* node: D_NODE  */
#line 678 "command.y"
          { yyval = yyvsp[0]; }
#line 2174 "command.c"
    break;

  case 145: /* node: '+' D_NODE  */
#line 680 "command.y"
          {
		NODE *n = yyvsp[0]->a_node;
		if ((n->flags & NUMBER) == 0)
			yyerror(_("non-numeric value found, numeric expected"));
		yyval = yyvsp[0];
	  }
#line 2185 "command.c"
    break;

  case 146: /* node: '-' D_NODE  */
#line 687 "command.y"
          {
		NODE *n = yyvsp[0]->a_node;
		if ((n->flags & NUMBER) == 0)
			yyerror(_("non-numeric value found, numeric expected"));
		else
			negate_num(n);
		yyval = yyvsp[0];
	  }
#line 2198 "command.c"
    break;

  case 147: /* opt_plus_integer: %empty  */
#line 699 "command.y"
          { yyval = NULL; }
#line 2204 "command.c"
    break;

  case 148: /* opt_plus_integer: plus_integer  */
#line 701 "command.y"
          { yyval = yyvsp[0]; }
#line 2210 "command.c"
    break;

  case 149: /* opt_integer: %empty  */
#line 706 "command.y"
          { yyval = NULL; }
#line 2216 "command.c"
    break;

  case 150: /* opt_integer: integer  */
#line 708 "command.y"
          { yyval = yyvsp[0]; }
#line 2222 "command.c"
    break;

  case 151: /* plus_integer: D_INT  */
#line 713 "command.y"
          {
		if (yyvsp[0]->a_int == 0)
			yyerror(_("non-zero integer value"));
		yyval = yyvsp[0];
	  }
#line 2232 "command.c"
    break;

  case 152: /* plus_integer: '+' D_INT  */
#line 719 "command.y"
          {
		if (yyvsp[0]->a_int == 0)
			yyerror(_("non-zero integer value"));
		yyval = yyvsp[0];
	  }
#line 2242 "command.c"
    break;

  case 153: /* integer: D_INT  */
#line 728 "command.y"
          { yyval = yyvsp[0]; }
#line 2248 "command.c"
    break;

  case 154: /* integer: '+' D_INT  */
#line 730 "command.y"
          { yyval = yyvsp[0]; }
#line 2254 "command.c"
    break;

  case 155: /* integer: '-' D_INT  */
#line 732 "command.y"
          {
		yyvsp[0]->a_int = - yyvsp[0]->a_int;
		yyval = yyvsp[0];
	  }
#line 2263 "command.c"
    break;

  case 156: /* nls: '\n'  */
#line 740 "command.y"
          {
		if (lexptr_begin != NULL) {
			if (input_from_tty && lexptr_begin[0] != '\0')
				add_history(lexptr_begin);
			efree(lexptr_begin);
			lexptr_begin = NULL;
		}
	  }
#line 2276 "command.c"
    break;


#line 2280 "command.c"

      default: break;
    }
  /* User semantic actions sometimes alter yychar, and that requires
     that yytoken be updated with the new translation.  We take the
     approach of translating immediately before every use of yytoken.
     One alternative is translating here after every semantic action,
     but that translation would be missed if the semantic action invokes
     YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or
     if it invokes YYBACKUP.  In the case of YYABORT or YYACCEPT, an
     incorrect destructor might then be invoked immediately.  In the
     case of YYERROR or YYBACKUP, subsequent parser actions might lead
     to an incorrect destructor call or verbose syntax error message
     before the lookahead is translated.  */
  YY_SYMBOL_PRINT ("-> $$ =", YY_CAST (yysymbol_kind_t, yyr1[yyn]), &yyval, &yyloc);

  YYPOPSTACK (yylen);
  yylen = 0;

  *++yyvsp = yyval;

  /* 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.  */
  {
    const int yylhs = yyr1[yyn] - YYNTOKENS;
    const int yyi = yypgoto[yylhs] + *yyssp;
    yystate = (0 <= yyi && yyi <= YYLAST && yycheck[yyi] == *yyssp
               ? yytable[yyi]
               : yydefgoto[yylhs]);
  }

  goto yynewstate;


/*--------------------------------------.
| yyerrlab -- here on detecting error.  |
`--------------------------------------*/
yyerrlab:
  /* Make sure we have latest lookahead translation.  See comments at
     user semantic actions for why this is necessary.  */
  yytoken = yychar == YYEMPTY ? YYSYMBOL_YYEMPTY : YYTRANSLATE (yychar);
  /* If not already recovering from an error, report this error.  */
  if (!yyerrstatus)
    {
      ++yynerrs;
      yyerror (YY_("syntax error"));
    }

  if (yyerrstatus == 3)
    {
      /* If just tried and failed to reuse lookahead 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);
          yychar = YYEMPTY;
        }
    }

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


/*---------------------------------------------------.
| yyerrorlab -- error raised explicitly by YYERROR.  |
`---------------------------------------------------*/
yyerrorlab:
  /* Pacify compilers when the user code never invokes YYERROR and the
     label yyerrorlab therefore never appears in user code.  */
  if (0)
    YYERROR;
  ++yynerrs;

  /* Do not reclaim the symbols of the rule whose 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.  */

  /* Pop stack until we find a state that shifts the error token.  */
  for (;;)
    {
      yyn = yypact[yystate];
      if (!yypact_value_is_default (yyn))
        {
          yyn += YYSYMBOL_YYerror;
          if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYSYMBOL_YYerror)
            {
              yyn = yytable[yyn];
              if (0 < yyn)
                break;
            }
        }

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


      yydestruct ("Error: popping",
                  YY_ACCESSING_SYMBOL (yystate), yyvsp);
      YYPOPSTACK (1);
      yystate = *yyssp;
      YY_STACK_PRINT (yyss, yyssp);
    }

  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
  *++yyvsp = yylval;
  YY_IGNORE_MAYBE_UNINITIALIZED_END


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

  yystate = yyn;
  goto yynewstate;


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


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


/*-----------------------------------------------------------.
| yyexhaustedlab -- YYNOMEM (memory exhaustion) comes here.  |
`-----------------------------------------------------------*/
yyexhaustedlab:
  yyerror (YY_("memory exhausted"));
  yyresult = 2;
  goto yyreturnlab;


/*----------------------------------------------------------.
| yyreturnlab -- parsing is finished, clean up and return.  |
`----------------------------------------------------------*/
yyreturnlab:
  if (yychar != YYEMPTY)
    {
      /* Make sure we have latest lookahead translation.  See comments at
         user semantic actions for why this is necessary.  */
      yytoken = YYTRANSLATE (yychar);
      yydestruct ("Cleanup: discarding lookahead",
                  yytoken, &yylval);
    }
  /* Do not reclaim the symbols of the rule whose action triggered
     this YYABORT or YYACCEPT.  */
  YYPOPSTACK (yylen);
  YY_STACK_PRINT (yyss, yyssp);
  while (yyssp != yyss)
    {
      yydestruct ("Cleanup: popping",
                  YY_ACCESSING_SYMBOL (+*yyssp), yyvsp);
      YYPOPSTACK (1);
    }
#ifndef yyoverflow
  if (yyss != yyssa)
    YYSTACK_FREE (yyss);
#endif

  return yyresult;
}

#line 750 "command.y"



/* append_statement --- append 'stmt' to the list of eval awk statements */

static CMDARG *
append_statement(CMDARG *stmt_list, char *stmt)
{
	CMDARG *a, *arg;
	char *s;
	int len, slen, ssize;

#define EVALSIZE	512

	if (stmt == start_EVAL) {
		len = sizeof(start_EVAL);
		for (a = stmt_list; a != NULL; a = a->next)
			len += strlen(a->a_string) + 1;	/* 1 for ',' */
		len += EVALSIZE;

		emalloc(s, char *, (len + 1) * sizeof(char), "append_statement");
		arg = mk_cmdarg(D_string);
		arg->a_string = s;
		arg->a_count = len;	/* kludge */

		slen = sizeof("function @eval(") - 1;
		memcpy(s, start_EVAL, slen);

		for (a = stmt_list; a != NULL; a = a->next) {
			len = strlen(a->a_string);
			memcpy(s + slen, a->a_string, len);
			slen += len;
			if (a->next != NULL)
				s[slen++] = ',';
		}
		s[slen++] = ')';
		s[slen++] = '{';
		s[slen] = '\0';
		return arg;
	}

	len = strlen(stmt) + 1;	/* 1 for newline */
	s = stmt_list->a_string;
	slen = strlen(s);
	ssize = stmt_list->a_count;
	if (len > ssize - slen) {
		ssize = slen + len + EVALSIZE;
		erealloc(s, char *, (ssize + 1) * sizeof(char), "append_statement");
		stmt_list->a_string = s;
		stmt_list->a_count = ssize;
	}
	memcpy(s + slen, stmt, len);
	slen += len;
	if (slen >= 2 && s[slen - 2] != '\n') {
		s[slen - 1] = '\n';
		s[slen] = '\0';
	}

	if (stmt == end_EVAL)
		erealloc(stmt_list->a_string, char *, slen + 1, "append_statement");
	return stmt_list;

#undef EVALSIZE
}


/* command names sorted in ascending order */

struct cmdtoken cmdtab[] = {
{ "backtrace", "bt", D_backtrace, D_BACKTRACE, do_backtrace,
	gettext_noop("backtrace [N] - print trace of all or N innermost (outermost if N < 0) frames") },
{ "break", "b", D_break, D_BREAK, do_breakpoint,
	gettext_noop("break [[filename:]N|function] - set breakpoint at the specified location") },
{ "clear", "", D_clear, D_CLEAR, do_clear,
	gettext_noop("clear [[filename:]N|function] - delete breakpoints previously set") },
{ "commands", "", D_commands, D_COMMANDS, do_commands,
	gettext_noop("commands [num] - starts a list of commands to be executed at a breakpoint(watchpoint) hit") },
{ "condition", "", D_condition, D_CONDITION, do_condition,
	gettext_noop("condition num [expr] - set or clear breakpoint or watchpoint condition") },
{ "continue", "c", D_continue, D_CONTINUE, do_continue,
	gettext_noop("continue [COUNT] - continue program being debugged") },
{ "delete", "d", D_delete, D_DELETE, do_delete_breakpoint,
	gettext_noop("delete [breakpoints] [range] - delete specified breakpoints") },
{ "disable", "", D_disable, D_DISABLE, do_disable_breakpoint,
	gettext_noop("disable [breakpoints] [range] - disable specified breakpoints") },
{ "display", "", D_display, D_DISPLAY, do_display,
	gettext_noop("display [var] - print value of variable each time the program stops") },
{ "down", "", D_down, D_DOWN, do_down,
	gettext_noop("down [N] - move N frames down the stack") },
{ "dump", "", D_dump, D_DUMP, do_dump_instructions,
	gettext_noop("dump [filename] - dump instructions to file or stdout") },
{ "enable", "e", D_enable, D_ENABLE, do_enable_breakpoint,
	gettext_noop("enable [once|del] [breakpoints] [range] - enable specified breakpoints") },
{ "end", "", D_end, D_END, do_commands,
	gettext_noop("end - end a list of commands or awk statements") },
{ "eval", "", D_eval, D_EVAL, do_eval,
	gettext_noop("eval stmt|[p1, p2, ...] - evaluate awk statement(s)") },
{ "exit", "", D_quit, D_QUIT, do_quit,
	gettext_noop("exit - (same as quit) exit debugger") },
{ "finish", "", D_finish, D_FINISH, do_finish,
	gettext_noop("finish - execute until selected stack frame returns") },
{ "frame", "f", D_frame, D_FRAME, do_frame,
	gettext_noop("frame [N] - select and print stack frame number N") },
{ "help", "h", D_help, D_HELP, do_help,
	gettext_noop("help [command] - print list of commands or explanation of command") },
{ "ignore", "", D_ignore, D_IGNORE, do_ignore_breakpoint,
	gettext_noop("ignore N COUNT - set ignore-count of breakpoint number N to COUNT") },
{ "info", "i", D_info, D_INFO, do_info,
	gettext_noop("info topic - source|sources|variables|functions|break|frame|args|locals|display|watch") },
{ "list", "l", D_list, D_LIST, do_list,
	gettext_noop("list [-|+|[filename:]lineno|function|range] - list specified line(s)") },
{ "next", "n", D_next, D_NEXT, do_next,
	gettext_noop("next [COUNT] - step program, proceeding through subroutine calls") },
{ "nexti", "ni", D_nexti, D_NEXTI, do_nexti,
	gettext_noop("nexti [COUNT] - step one instruction, but proceed through subroutine calls") },
{ "option", "o", D_option, D_OPTION, do_option,
	gettext_noop("option [name[=value]] - set or display debugger option(s)") },
{ "print", "p", D_print, D_PRINT, do_print_var,
	gettext_noop("print var [var] - print value of a variable or array") },
{ "printf", "", D_printf, D_PRINTF, do_print_f,
	gettext_noop("printf format, [arg], ... - formatted output") },
{ "quit", "q", D_quit, D_QUIT, do_quit,
	gettext_noop("quit - exit debugger") },
{ "return", "", D_return, D_RETURN, do_return,
	gettext_noop("return [value] - make selected stack frame return to its caller") },
{ "run", "r", D_run, D_RUN, do_run,
	gettext_noop("run - start or restart executing program") },
#ifdef HAVE_LIBREADLINE
{ "save", "", D_save, D_SAVE, do_save,
	gettext_noop("save filename - save commands from the session to file") },
#endif
{ "set", "", D_set, D_SET, do_set_var,
	gettext_noop("set var = value - assign value to a scalar variable") },
{ "silent", "", D_silent, D_SILENT, do_commands,
	gettext_noop("silent - suspends usual message when stopped at a breakpoint/watchpoint") },
{ "source", "", D_source, D_SOURCE, do_source,
	gettext_noop("source file - execute commands from file") },
{ "step", "s", D_step, D_STEP, do_step,
	gettext_noop("step [COUNT] - step program until it reaches a different source line") },
{ "stepi", "si", D_stepi, D_STEPI, do_stepi,
	gettext_noop("stepi [COUNT] - step one instruction exactly") },
{ "tbreak", "t", D_tbreak, D_TBREAK, do_tmp_breakpoint,
	gettext_noop("tbreak [[filename:]N|function] - set a temporary breakpoint") },
{ "trace", "", D_trace, D_TRACE, do_trace_instruction,
	gettext_noop("trace on|off - print instruction before executing") },
{ "undisplay",	"", D_undisplay, D_UNDISPLAY, do_undisplay,
	gettext_noop("undisplay [N] - remove variable(s) from automatic display list") },
{ "until", "u", D_until, D_UNTIL, do_until,
	gettext_noop("until [[filename:]N|function] - execute until program reaches a different line or line N within current frame") },
{ "unwatch", "", D_unwatch, D_UNWATCH, do_unwatch,
	gettext_noop("unwatch [N] - remove variable(s) from watch list") },
{ "up",	"", D_up, D_UP, do_up,
	gettext_noop("up [N] - move N frames up the stack") },
{ "watch", "w", D_watch, D_WATCH, do_watch,
	gettext_noop("watch var - set a watchpoint for a variable") },
{ "where", "", D_backtrace, D_BACKTRACE, do_backtrace,
	gettext_noop("where [N] - (same as backtrace) print trace of all or N innermost (outermost if N < 0) frames") },
{ NULL, NULL, D_illegal, 0, (Func_cmd) 0,
	 NULL },
};

struct argtoken argtab[] = {
	{ "args", D_info, A_ARGS },
	{ "break", D_info, A_BREAK },
	{ "del", D_enable, A_DEL },
	{ "display", D_info, A_DISPLAY },
	{ "frame", D_info, A_FRAME },
	{ "functions", D_info, A_FUNCTIONS },
	{ "locals", D_info, A_LOCALS },
	{ "off", D_trace, A_TRACE_OFF },
	{ "on", D_trace, A_TRACE_ON },
	{ "once", D_enable, A_ONCE },
	{ "source", D_info, A_SOURCE },
	{ "sources", D_info, A_SOURCES },
	{ "variables", D_info, A_VARIABLES },
	{ "watch", D_info, A_WATCH },
	{ NULL, D_illegal, A_NONE },
};


/* get_command --- return command handler function */

Func_cmd
get_command(int ctype)
{
	int i;
	for (i = 0; cmdtab[i].name != NULL; i++) {
		if (cmdtab[i].type == ctype)
			return cmdtab[i].cf_ptr;
	}
	return (Func_cmd) 0;
}

/* get_command_name --- return command name given it's type */

const char *
get_command_name(int ctype)
{
	int i;
	for (i = 0; cmdtab[i].name != NULL; i++) {
		if (cmdtab[i].type == ctype)
			return cmdtab[i].name;
	}
	return NULL;
}

/* mk_cmdarg --- make an argument for command */

static CMDARG *
mk_cmdarg(enum argtype type)
{
	CMDARG *arg;
	ezalloc(arg, CMDARG *, sizeof(CMDARG), "mk_cmdarg");
	arg->type = type;
	return arg;
}

/* append_cmdarg --- append ARG to the list of arguments for the current command */

static void
append_cmdarg(CMDARG *arg)
{
	static CMDARG *savetail;

	if (arg_list == NULL)
		arg_list = arg;
	else
		savetail->next = arg;
	savetail = arg;
}

/* free_cmdarg --- free all arguments in LIST */

void
free_cmdarg(CMDARG *list)
{
	CMDARG *arg, *nexta;

	for (arg = list; arg != NULL; arg = nexta) {
		nexta = arg->next;

		switch (arg->type) {
		case D_variable:
		case D_subscript:
		case D_array:
		case D_string:
			if (arg->a_string != NULL)
				efree(arg->a_string);
			break;
		case D_node:
		case D_field:
			unref(arg->a_node);
			break;
		default:
			break;
		}
		efree(arg);
	}
}

/* yyerror --- print a syntax error message */

static void
yyerror(const char *mesg, ...)
{
	va_list args;
	va_start(args, mesg);
	fprintf(out_fp, _("error: "));
	vfprintf(out_fp, mesg, args);
	fprintf(out_fp, "\n");
	va_end(args);
	dbg_errcount++;
	repeat_idx = -1;
}


/* yylex --- read a command and turn it into tokens */

static int
#ifdef USE_EBCDIC
yylex_ebcdic(void)
#else
yylex(void)
#endif
{
	static char *lexptr = NULL;
	static char *lexend;
	int c;
	char *tokstart;
	size_t toklen;

	yylval = (CMDARG *) NULL;

	if (dbg_errcount > 0 && lexptr_begin == NULL) {
		/* fake a new line */
		dbg_errcount = 0;
		return '\n';
	}

	if (lexptr_begin == NULL) {
again:
		lexptr_begin = read_a_line(dbg_prompt);
		if (lexptr_begin == NULL) {	/* EOF or error */
			if (get_eof_status() == EXIT_FATAL)
				exit(EXIT_FATAL);
			if (get_eof_status() == EXIT_FAILURE) {
				static int seen_eof = 0;

				/* force a quit, and let do_quit (in debug.c) exit */
				if (! seen_eof) {
					if (errno != 0)	{
						fprintf(stderr, _("cannot read command: %s\n"), strerror(errno));
						exit_val = EXIT_FAILURE;
					} /* else
						exit_val = EXIT_SUCCESS; */

					seen_eof = 1;
					return '\n';	/* end current command if any */
				} else if (seen_eof++ == 1) {
					cmd_idx = find_command("quit", 4);
					return D_QUIT;	/* 'quit' token */
				} else
					return '\n';	/* end command 'quit' */
			}
			if (errno != 0)
				d_error(_("cannot read command: %s"), strerror(errno));
			if (pop_cmd_src() == 0)
				goto again;
			exit(EXIT_FATAL);	/* shouldn't happen */
		}

		if (! in_commands && ! in_eval	/* history expansion off in 'commands' and 'eval' */
				&& input_from_tty
		)
			history_expand_line(&lexptr_begin);

		lexptr = lexptr_begin;
		lexend = lexptr + strlen(lexptr);
		if (*lexptr == '\0'		/* blank line */
				&& repeat_idx >= 0
				&& input_from_tty
				&& ! in_eval
		) {
#ifdef HAVE_LIBREADLINE
			HIST_ENTRY *h;
			h = previous_history();
			if (h != NULL)
				add_history(h->line);
#endif
			cmd_idx = repeat_idx;
			return cmdtab[cmd_idx].lex_class;	/* repeat last command */
		}
		repeat_idx = -1;
	}

	c = *lexptr;

	while (c == ' ' || c == '\t')
		c = *++lexptr;

	if (! input_from_tty && c == '#')
		return '\n';

	tokstart = lexptr;
	if (lexptr >= lexend)
		return '\n';

	if (cmd_idx < 0) {	/* need a command */
		if (c == '?' && tokstart[1] == '\0'	&& ! in_eval) {
			lexptr++;
			cmd_idx = find_command("help", 4);
			return D_HELP;
		}

		while (c != '\0' && c != ' ' && c != '\t') {
			if (! is_alpha(c) && ! in_eval) {
				yyerror(_("invalid character in command"));
				return '\n';
			}
			c = *++lexptr;
		}

		toklen = lexptr - tokstart;

		if (in_eval) {
			if (toklen == 3
					&& tokstart[3] == '\0'
					&& tokstart[0] == 'e'
					&& tokstart[1] == 'n'
					&& tokstart[2] == 'd'
			) {
				cmd_idx = find_command(tokstart, toklen);
				return D_END;
			}
			lexptr = lexend;
			return D_STATEMENT;
		}

		cmd_idx = find_command(tokstart, toklen);
		if (cmd_idx >= 0) {
			if (in_commands && cmdtab[cmd_idx].type != D_eval) {
				/* add the actual command string (lexptr_begin) to
				 * arg_list; command string for 'eval' prepended to the arg_list
				 * in the grammer above (see eval_cmd non-terminal).
				 */
				CMDARG *arg;
				arg = mk_cmdarg(D_string);
				arg->a_string = estrdup(lexptr_begin, lexend - lexptr_begin);
				append_cmdarg(arg);
			}
			return cmdtab[cmd_idx].lex_class;
		} else {
			yyerror(_("unknown command - `%.*s', try help"), toklen, tokstart);
			return '\n';
		}
	}

	c = *lexptr;

	if (cmdtab[cmd_idx].type == D_option) {
		if (c == '=')
			return *lexptr++;
	} else if (c == '-' || c == '+' || c == ':' || c == '|')
		return *lexptr++;

	if (c == '"') {
		char *str, *p;
		int flags = ALREADY_MALLOCED;
		bool esc_seen = false;

		toklen = lexend - lexptr;
		emalloc(str, char *, toklen + 1, "yylex");
		p = str;

		while ((c = *++lexptr) != '"') {
			if (lexptr == lexend) {
err:
				efree(str);
				yyerror(_("unterminated string"));
				return '\n';
			}
			if (c == '\\') {
				c = *++lexptr;
				esc_seen = true;
				if (want_nodeval || c != '"')
					*p++ = '\\';
			}
			if (lexptr == lexend)
				goto err;
			*p++ = c;
		}
		lexptr++;
		*p = '\0';

		if (! want_nodeval) {
			yylval = mk_cmdarg(D_string);
			yylval->a_string = str;
			append_cmdarg(yylval);
			return D_STRING;
		} else {	/* awk string */
			if (esc_seen)
				flags |= SCAN;
			yylval = mk_cmdarg(D_node);
			yylval->a_node = make_str_node(str, p - str, flags);
			append_cmdarg(yylval);
			return D_NODE;
		}
	}

	if (! want_nodeval) {
		while ((c = *++lexptr) != '\0' && c != ':' && c != '-'
					&& c != ' ' && c != '\t' && c != '=')
			;

		/* Is it an integer? */
		if (isdigit((unsigned char) tokstart[0]) && cmdtab[cmd_idx].type != D_option) {
			char *end;
			long l;

			errno = 0;
			l = strtol(tokstart, &end, 0);
			if (errno != 0) {
				yyerror(_("%s"), strerror(errno));
				errno = 0;
				return '\n';
			}

			if (lexptr == end) {
				yylval = mk_cmdarg(D_int);
				yylval->a_int = l;
				append_cmdarg(yylval);
				return D_INT;
			}
		}

		/* Must be string */
		yylval = mk_cmdarg(D_string);
		yylval->a_string = estrdup(tokstart, lexptr - tokstart);
		append_cmdarg(yylval);
		return D_STRING;
	}

	/* look for awk number */

	if (isdigit((unsigned char) tokstart[0])) {
		NODE *r = NULL;

		errno = 0;
#ifdef HAVE_MPFR
		if (do_mpfr) {
			int tval;
			r = mpg_float();
			tval = mpfr_strtofr(r->mpg_numbr, tokstart, & lexptr, 0, ROUND_MODE);
			IEEE_FMT(r->mpg_numbr, tval);
			if (mpfr_integer_p(r->mpg_numbr)) {
				/* integral value, convert to a GMP type. */
				NODE *tmp = r;
				r = mpg_integer();
				mpfr_get_z(r->mpg_i, tmp->mpg_numbr, MPFR_RNDZ);
				unref(tmp);
			}
		} else
#endif
			r = make_number(strtod(tokstart, & lexptr));

		if (errno != 0) {
			yyerror(strerror(errno));
			unref(r);
			errno = 0;
			return '\n';
		}
		yylval = mk_cmdarg(D_node);
		yylval->a_node = r;
		append_cmdarg(yylval);
		return D_NODE;
	}

	c = *lexptr;
	if (c == '$' || c == '@'
			|| c == '[' || c == ']'
			|| c == ',' || c == '=')
		return *lexptr++;

	if (! is_letter(c)) {
		yyerror(_("invalid character"));
		return '\n';
	}

	while (is_identchar(c))
		c = *++lexptr;
	toklen = lexptr - tokstart;

	/* awk variable */
	yylval = mk_cmdarg(D_variable);
	yylval->a_string = estrdup(tokstart, toklen);
	append_cmdarg(yylval);
	return D_VARIABLE;
}

/* Convert single-character tokens coming out of yylex() from EBCDIC to
   ASCII values on-the-fly so that the parse tables need not be regenerated
   for EBCDIC systems.  */
#ifdef USE_EBCDIC
static int
yylex(void)
{
	static char etoa_xlate[256];
	static int do_etoa_init = 1;
	int tok;

	if (do_etoa_init)
	{
		for (tok = 0; tok < 256; tok++)
			etoa_xlate[tok] = (char) tok;
#ifdef HAVE___ETOA_L
		/* IBM helpfully provides this function.  */
		__etoa_l(etoa_xlate, sizeof(etoa_xlate));
#else
# error "An EBCDIC-to-ASCII translation function is needed for this system"
#endif
		do_etoa_init = 0;
	}

	tok = yylex_ebcdic();

	if (tok >= 0 && tok <= 0xFF)
		tok = etoa_xlate[tok];

	return tok;
}
#endif /* USE_EBCDIC */

/* find_argument --- find index in 'argtab' for a command option */

static int
find_argument(CMDARG *arg)
{
	/* non-number argument */
	int idx;
	char *name, *p;
	size_t len;
	assert(cmd_idx >= 0);
	name = arg->a_string;
	len = strlen(name);
	for (idx = 0; (p = (char *) argtab[idx].name) != NULL; idx++) {
		if (cmdtab[cmd_idx].type == argtab[idx].cmd
				&& *p == *name
				&& strlen(p) == len
				&& strncmp(p, name, len) == 0
		)
			return idx;
	}
	return -1;	/* invalid option */
}

/* concat_args --- concatenate argument strings into a single string NODE */

static NODE *
concat_args(CMDARG *arg, int count)
{
	NODE *n;
	NODE **tmp;
	char *str, *subsep, *p;
	long len, subseplen;
	int i;

	if (count == 1) {
		n = force_string(arg->a_node);
		return dupnode(n);
	}

	emalloc(tmp, NODE **, count * sizeof(NODE *), "concat_args");
	subseplen = SUBSEP_node->var_value->stlen;
	subsep = SUBSEP_node->var_value->stptr;
	len = -subseplen;

	for (i = 0; i < count; i++) {
		n = force_string(arg->a_node);
		len += n->stlen + subseplen;
		tmp[i] = n;
		arg = arg->next;
	}

	emalloc(str, char *, len + 1, "concat_args");
	n = tmp[0];
	memcpy(str, n->stptr, n->stlen);
	p = str + n->stlen;
	for (i = 1; i < count; i++) {
		if (subseplen == 1)
			*p++ = *subsep;
		else if (subseplen > 0) {
			memcpy(p, subsep, subseplen);
			p += subseplen;
		}

		n = tmp[i];
		memcpy(p, n->stptr, n->stlen);
		p += n->stlen;
	}
	str[len] = '\0';
	efree(tmp);
	return make_str_node(str, len, ALREADY_MALLOCED);
}

/* find_command --- find the index in 'cmdtab' using exact,
 *                  abbreviation or unique partial match
 */

static int
find_command(const char *token, size_t toklen)
{
	const char *name, *abrv;
	int i, k;
	bool try_exact = true;
	int abrv_match = -1;
	int partial_match = -1;

#ifdef USE_EBCDIC
	/* make sure all lower case characters in token (sorting
	 * isn't the solution in this case)
	 */
	for (i = 0; i < toklen; i++) {
		if (token[i] != tolower(token[i]))
			return -1;
	}
#endif

	k = sizeof(cmdtab)/sizeof(cmdtab[0]) - 1;
	for (i = 0; i < k; i++) {
		name = (char *) cmdtab[i].name;
		if (try_exact && *token == *name
				&& toklen == strlen(name)
				&& strncmp(name, token, toklen) == 0
		)
			return i;

		if (*name > *token || i == (k - 1))
			try_exact = false;

		if (abrv_match < 0) {
			abrv = cmdtab[i].abbrvn;
			if (abrv[0] == token[0]) {
				if (toklen == 1 && ! abrv[1])
					abrv_match = i;
				else if (toklen == 2 && abrv[1] == token[1])
					abrv_match = i;
			}
		}
		if (! try_exact && abrv_match >= 0)
			return abrv_match;
		if (partial_match < 0) {
			if (*token == *name
					&& toklen < strlen(name)
					&& strncmp(name, token, toklen) == 0
			) {
				if ((i == k - 1 || strncmp(cmdtab[i + 1].name, token, toklen) != 0)
					&& (i == 0 || strncmp(cmdtab[i - 1].name, token, toklen) != 0)
				)
					partial_match = i;
			}
		}
	}
	return partial_match;
}

/* do_help -- help command */

int
do_help(CMDARG *arg, int cmd)
{
	int i;
	if (arg == NULL) {
		initialize_pager(out_fp);
		if (setjmp(pager_quit_tag) == 0) {
			for (i = 0; cmdtab[i].name != NULL; i++) {
				gprintf(out_fp, "%s:\n", cmdtab[i].name);
				gprintf(out_fp, "\t%s\n", _(cmdtab[i].help_txt));
			}
		}
	} else if (arg->type == D_string) {
		char *name;
		name = arg->a_string;
		i = find_command(name, strlen(name));
		if (i >= 0) {
			fprintf(out_fp, "%s\n", cmdtab[i].help_txt);
			if (strcmp(cmdtab[i].name, "option") == 0)
				option_help();
		} else
			fprintf(out_fp, _("undefined command: %s\n"), name);
	}

	return false;
}


#ifdef HAVE_LIBREADLINE

/* next_word --- find the next word in a line to complete
 *               (word seperation characters are space and tab).
 */

static char *
next_word(char *p, int len, char **endp)
{
	char *q;
	int i;

	if (p == NULL || len <= 0)
		return NULL;
	for (i = 0; i < len; i++, p++)
		if (*p != ' ' && *p != '\t')
			break;
	if (i == len)
		return NULL;
	if (endp != NULL) {
		for (i++, q = p + 1; i < len; i++, q++)
			if (*q == ' ' || *q == '\t')
				break;
		*endp = q;
	}
	return p;
}

/* command_completion --- attempt to complete based on the word number in line;
 *    try to complete on command names if this is the first word; for the next
 *    word(s), the type of completion depends on the command name (first word).
 */

#ifndef RL_READLINE_VERSION		/* < 4.2a */
#define rl_completion_matches(x, y) completion_matches((char *) (x), (y))
#endif


char **
command_completion(const char *text, int start, int end)
{
	char *cmdtok, *e;
	int idx;
	int len;

	rl_attempted_completion_over = true;	/* no default filename completion please */

	this_cmd = D_illegal;
	len = start;
	if ((cmdtok = next_word(rl_line_buffer, len, &e)) == NULL)	/* no first word yet */
		return  rl_completion_matches(text, command_generator);
	len -= (e - rl_line_buffer);

	idx = find_command(cmdtok, e - cmdtok);
	if (idx < 0)
		return NULL;
	this_cmd = cmdtab[idx].type;

	if (! next_word(e, len, NULL)) {
		switch (this_cmd) {
		case D_break:
		case D_list:
		case D_until:
		case D_tbreak:
		case D_clear:
			return rl_completion_matches(text, srcfile_generator);
		case D_info:
		case D_enable:
		case D_trace:
		case D_help:
			return rl_completion_matches(text, argument_generator);
		case D_option:
			return rl_completion_matches(text, option_generator);
		case D_print:
		case D_printf:
		case D_set:
		case D_display:
		case D_watch:
			return rl_completion_matches(text, variable_generator);
		default:
			return NULL;
		}
	}

	if (this_cmd == D_print || this_cmd == D_printf)
		return rl_completion_matches(text, variable_generator);
	return NULL;
}

/* command_generator --- generator function for command completion */

static char *
command_generator(const char *text, int state)
{
	static size_t textlen;
	static int idx = 0;
	char *name;

	if (! state) {	/* first time */
		textlen = strlen(text);
		idx = 0;
	}
	while ((name = (char *) cmdtab[idx].name) != NULL) {
		idx++;
		if (strncmp(name, text, textlen) == 0)
			return estrdup(name, strlen(name));
	}
	return NULL;
}

/* srcfile_generator --- generator function for source file completion */

static char *
srcfile_generator(const char *text, int state)
{
	static size_t textlen;
	static SRCFILE *s;
	char *name;
	extern SRCFILE *srcfiles;

	if (! state) {	/* first time */
		textlen = strlen(text);
		s = srcfiles->next;
	}
	while (s != srcfiles) {
		if (s->stype != SRC_FILE && s->stype != SRC_INC) {
			s = s->next;
			continue;
		}
		name = s->src;
		s = s->next;
		if (strncmp(name, text, textlen) == 0)
			return estrdup(name, strlen(name));
	}
	return NULL;
}

/* argument_generator --- generator function for non-number argument completion */

static char *
argument_generator(const char *text, int state)
{
	static size_t textlen;
	static int idx;
	const char *name;

	if (! state) {	/* first time */
		textlen = strlen(text);
		idx = 0;
	}

	if (this_cmd == D_help) {
		while ((name = cmdtab[idx++].name) != NULL) {
			if (strncmp(name, text, textlen) == 0)
				return estrdup(name, strlen(name));
		}
	} else {
		while ((name = argtab[idx].name) != NULL) {
			if (this_cmd != argtab[idx++].cmd)
				continue;
			if (strncmp(name, text, textlen) == 0)
				return estrdup(name, strlen(name));
		}
	}
	return NULL;
}

/* variable_generator --- generator function for variable name completion */

static char *
variable_generator(const char *text, int state)
{
	static size_t textlen;
	static int idx = 0;
	static NODE *func = NULL;
	static NODE **vars = NULL;
	const char *name;
	NODE *r;

	if (! state) {	/* first time */
		textlen = strlen(text);
		if (vars != NULL)
			efree(vars);
		vars = variable_list();
		idx = 0;
		func = get_function();  /* function in current context */
	}

	/* function params */
	while (func != NULL) {
		if (idx >= func->param_cnt) {
			func = NULL;	/* don't try to match params again */
			idx = 0;
			break;
		}
		name = func->fparms[idx++].param;
		if (strncmp(name, text, textlen) == 0)
			return estrdup(name, strlen(name));
	}

	/* globals */
	while ((r = vars[idx++]) != NULL) {
		name = r->vname;
		if (strncmp(name, text, textlen) == 0)
			return estrdup(name, strlen(name));
	}

	return NULL;
}

/* history_expand_line ---  history expand the LINE */

static void
history_expand_line(char **line)
{
	int ret;
	char *expansion;

	if (! *line || input_fd != 0 || ! input_from_tty)
		return;
	using_history();
	ret = history_expand(*line, &expansion);
	if (ret < 0 || ret == 2)
		efree(expansion);
	else {
		efree(*line);
		*line = expansion;
	}
}

#endif