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Diffstat (limited to 'main/ast_expr2.c')
| -rw-r--r-- | main/ast_expr2.c | 2859 |
1 files changed, 2859 insertions, 0 deletions
diff --git a/main/ast_expr2.c b/main/ast_expr2.c new file mode 100644 index 000000000..66a680b56 --- /dev/null +++ b/main/ast_expr2.c @@ -0,0 +1,2859 @@ +/* A Bison parser, made by GNU Bison 2.1a. */ + +/* Skeleton parser for Yacc-like parsing with Bison, + Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. */ + +/* As a special exception, when this file is copied by Bison into a + Bison output file, you may use that output file without restriction. + This special exception was added by the Free Software Foundation + in version 1.24 of Bison. */ + +/* C LALR(1) parser skeleton written by Richard Stallman, by + simplifying the original so-called "semantic" parser. */ + +/* All symbols defined below should begin with yy or YY, to avoid + infringing on user name space. This should be done even for local + variables, as they might otherwise be expanded by user macros. + There are some unavoidable exceptions within include files to + define necessary library symbols; they are noted "INFRINGES ON + USER NAME SPACE" below. */ + +/* Identify Bison output. */ +#define YYBISON 1 + +/* Bison version. */ +#define YYBISON_VERSION "2.1a" + +/* Skeleton name. */ +#define YYSKELETON_NAME "yacc.c" + +/* Pure parsers. */ +#define YYPURE 1 + +/* Using locations. */ +#define YYLSP_NEEDED 1 + +/* Substitute the variable and function names. */ +#define yyparse ast_yyparse +#define yylex ast_yylex +#define yyerror ast_yyerror +#define yylval ast_yylval +#define yychar ast_yychar +#define yydebug ast_yydebug +#define yynerrs ast_yynerrs +#define yylloc ast_yylloc + +/* Tokens. */ +#ifndef YYTOKENTYPE +# define YYTOKENTYPE + /* Put the tokens into the symbol table, so that GDB and other debuggers + know about them. */ + enum yytokentype { + TOK_COLONCOLON = 258, + TOK_COND = 259, + TOK_OR = 260, + TOK_AND = 261, + TOK_NE = 262, + TOK_LE = 263, + TOK_GE = 264, + TOK_LT = 265, + TOK_GT = 266, + TOK_EQ = 267, + TOK_MINUS = 268, + TOK_PLUS = 269, + TOK_MOD = 270, + TOK_DIV = 271, + TOK_MULT = 272, + TOK_COMPL = 273, + TOK_EQTILDE = 274, + TOK_COLON = 275, + TOK_LP = 276, + TOK_RP = 277, + TOKEN = 278 + }; +#endif +/* Tokens. */ +#define TOK_COLONCOLON 258 +#define TOK_COND 259 +#define TOK_OR 260 +#define TOK_AND 261 +#define TOK_NE 262 +#define TOK_LE 263 +#define TOK_GE 264 +#define TOK_LT 265 +#define TOK_GT 266 +#define TOK_EQ 267 +#define TOK_MINUS 268 +#define TOK_PLUS 269 +#define TOK_MOD 270 +#define TOK_DIV 271 +#define TOK_MULT 272 +#define TOK_COMPL 273 +#define TOK_EQTILDE 274 +#define TOK_COLON 275 +#define TOK_LP 276 +#define TOK_RP 277 +#define TOKEN 278 + + + + +/* Copy the first part of user declarations. */ +#line 1 "ast_expr2.y" + +/* Written by Pace Willisson (pace@blitz.com) + * and placed in the public domain. + * + * Largely rewritten by J.T. Conklin (jtc@wimsey.com) + * + * And then overhauled twice by Steve Murphy (murf@digium.com) + * to add double-quoted strings, allow mult. spaces, improve + * error messages, and then to fold in a flex scanner for the + * yylex operation. + * + * $FreeBSD: src/bin/expr/expr.y,v 1.16 2000/07/22 10:59:36 se Exp $ + */ + +#include "asterisk.h" + +#if !defined(STANDALONE_AEL) +ASTERISK_FILE_VERSION(__FILE__, "$Revision$") +#endif + +#include <sys/types.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <locale.h> +#include <unistd.h> +#include <ctype.h> +#if !defined(SOLARIS) && !defined(__CYGWIN__) +/* #include <err.h> */ +#else +#define quad_t int64_t +#endif +#include <errno.h> +#include <regex.h> +#include <limits.h> + +#include "asterisk/ast_expr.h" +#include "asterisk/logger.h" + +#if defined(LONG_LONG_MIN) && !defined(QUAD_MIN) +#define QUAD_MIN LONG_LONG_MIN +#endif +#if defined(LONG_LONG_MAX) && !defined(QUAD_MAX) +#define QUAD_MAX LONG_LONG_MAX +#endif + +# if ! defined(QUAD_MIN) +# define QUAD_MIN (-0x7fffffffffffffffLL-1) +# endif +# if ! defined(QUAD_MAX) +# define QUAD_MAX (0x7fffffffffffffffLL) +# endif + +#define YYPARSE_PARAM parseio +#define YYLEX_PARAM ((struct parse_io *)parseio)->scanner +#define YYERROR_VERBOSE 1 +extern char extra_error_message[4095]; +extern int extra_error_message_supplied; + +enum valtype { + AST_EXPR_integer, AST_EXPR_numeric_string, AST_EXPR_string +} ; + +#ifdef STANDALONE +void ast_log(int level, const char *file, int line, const char *function, const char *fmt, ...) __attribute__((format(printf,5,6))); +#endif + +struct val { + enum valtype type; + union { + char *s; + quad_t i; + } u; +} ; + +typedef void *yyscan_t; + +struct parse_io +{ + char *string; + struct val *val; + yyscan_t scanner; +}; + +static int chk_div __P((quad_t, quad_t)); +static int chk_minus __P((quad_t, quad_t, quad_t)); +static int chk_plus __P((quad_t, quad_t, quad_t)); +static int chk_times __P((quad_t, quad_t, quad_t)); +static void free_value __P((struct val *)); +static int is_zero_or_null __P((struct val *)); +static int isstring __P((struct val *)); +static struct val *make_integer __P((quad_t)); +static struct val *make_str __P((const char *)); +static struct val *op_and __P((struct val *, struct val *)); +static struct val *op_colon __P((struct val *, struct val *)); +static struct val *op_eqtilde __P((struct val *, struct val *)); +static struct val *op_div __P((struct val *, struct val *)); +static struct val *op_eq __P((struct val *, struct val *)); +static struct val *op_ge __P((struct val *, struct val *)); +static struct val *op_gt __P((struct val *, struct val *)); +static struct val *op_le __P((struct val *, struct val *)); +static struct val *op_lt __P((struct val *, struct val *)); +static struct val *op_cond __P((struct val *, struct val *, struct val *)); +static struct val *op_minus __P((struct val *, struct val *)); +static struct val *op_negate __P((struct val *)); +static struct val *op_compl __P((struct val *)); +static struct val *op_ne __P((struct val *, struct val *)); +static struct val *op_or __P((struct val *, struct val *)); +static struct val *op_plus __P((struct val *, struct val *)); +static struct val *op_rem __P((struct val *, struct val *)); +static struct val *op_times __P((struct val *, struct val *)); +static quad_t to_integer __P((struct val *)); +static void to_string __P((struct val *)); + +/* uh, if I want to predeclare yylex with a YYLTYPE, I have to predeclare the yyltype... sigh */ +typedef struct yyltype +{ + int first_line; + int first_column; + + int last_line; + int last_column; +} yyltype; + +# define YYLTYPE yyltype +# define YYLTYPE_IS_TRIVIAL 1 + +/* we will get warning about no prototype for yylex! But we can't + define it here, we have no definition yet for YYSTYPE. */ + +int ast_yyerror(const char *,YYLTYPE *, struct parse_io *); + +/* I wanted to add args to the yyerror routine, so I could print out + some useful info about the error. Not as easy as it looks, but it + is possible. */ +#define ast_yyerror(x) ast_yyerror(x,&yyloc,parseio) +#define DESTROY(x) {if((x)->type == AST_EXPR_numeric_string || (x)->type == AST_EXPR_string) free((x)->u.s); (x)->u.s = 0; free(x);} + + +/* Enabling traces. */ +#ifndef YYDEBUG +# define YYDEBUG 0 +#endif + +/* Enabling verbose error messages. */ +#ifdef YYERROR_VERBOSE +# undef YYERROR_VERBOSE +# define YYERROR_VERBOSE 1 +#else +# define YYERROR_VERBOSE 0 +#endif + +/* Enabling the token table. */ +#ifndef YYTOKEN_TABLE +# define YYTOKEN_TABLE 0 +#endif + +#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED +typedef union YYSTYPE +#line 147 "ast_expr2.y" +{ + struct val *val; +} +/* Line 198 of yacc.c. */ +#line 283 "ast_expr2.c" + YYSTYPE; +# define yystype YYSTYPE /* obsolescent; will be withdrawn */ +# define YYSTYPE_IS_DECLARED 1 +# define YYSTYPE_IS_TRIVIAL 1 +#endif + +#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED +typedef struct YYLTYPE +{ + int first_line; + int first_column; + int last_line; + int last_column; +} YYLTYPE; +# define yyltype YYLTYPE /* obsolescent; will be withdrawn */ +# define YYLTYPE_IS_DECLARED 1 +# define YYLTYPE_IS_TRIVIAL 1 +#endif + + +/* Copy the second part of user declarations. */ +#line 151 "ast_expr2.y" + +extern int ast_yylex __P((YYSTYPE *, YYLTYPE *, yyscan_t)); + + +/* Line 221 of yacc.c. */ +#line 311 "ast_expr2.c" + +#ifdef short +# undef short +#endif + +#ifdef YYTYPE_UINT8 +typedef YYTYPE_UINT8 yytype_uint8; +#else +typedef unsigned char yytype_uint8; +#endif + +#ifdef YYTYPE_INT8 +typedef YYTYPE_INT8 yytype_int8; +#elif (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +typedef signed char yytype_int8; +#else +typedef short int yytype_int8; +#endif + +#ifdef YYTYPE_UINT16 +typedef YYTYPE_UINT16 yytype_uint16; +#else +typedef unsigned short int yytype_uint16; +#endif + +#ifdef YYTYPE_INT16 +typedef YYTYPE_INT16 yytype_int16; +#else +typedef short int yytype_int16; +#endif + +#ifndef YYSIZE_T +# ifdef __SIZE_TYPE__ +# define YYSIZE_T __SIZE_TYPE__ +# elif defined size_t +# define YYSIZE_T size_t +# elif ! defined YYSIZE_T && (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +# include <stddef.h> /* INFRINGES ON USER NAME SPACE */ +# define YYSIZE_T size_t +# else +# define YYSIZE_T unsigned int +# endif +#endif + +#define YYSIZE_MAXIMUM ((YYSIZE_T) -1) + +#ifndef YY_ +# if YYENABLE_NLS +# if ENABLE_NLS +# include <libintl.h> /* INFRINGES ON USER NAME SPACE */ +# define YY_(msgid) dgettext ("bison-runtime", msgid) +# endif +# endif +# ifndef YY_ +# define YY_(msgid) msgid +# endif +#endif + +/* Suppress unused-variable warnings by "using" E. */ +#if ! defined lint || defined __GNUC__ +# define YYUSE(e) ((void) (e)) +#else +# define YYUSE(e) /* empty */ +#endif + +/* Identity function, used to suppress warnings about constant conditions. */ +#ifndef lint +# define YYID(n) (n) +#else +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static int +YYID (int i) +#else +static int +YYID (i) + int i; +#endif +{ + return i; +} +#endif + +#if ! defined yyoverflow || YYERROR_VERBOSE + +/* The parser invokes alloca or malloc; define the necessary symbols. */ + +# ifdef YYSTACK_USE_ALLOCA +# if YYSTACK_USE_ALLOCA +# ifdef __GNUC__ +# define YYSTACK_ALLOC __builtin_alloca +# elif defined __BUILTIN_VA_ARG_INCR +# include <alloca.h> /* INFRINGES ON USER NAME SPACE */ +# elif defined _AIX +# define YYSTACK_ALLOC __alloca +# elif defined _MSC_VER +# include <malloc.h> /* INFRINGES ON USER NAME SPACE */ +# define alloca _alloca +# else +# define YYSTACK_ALLOC alloca +# if ! defined _ALLOCA_H && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */ +# ifndef _STDLIB_H +# define _STDLIB_H 1 +# endif +# endif +# endif +# endif +# endif + +# ifdef YYSTACK_ALLOC + /* Pacify GCC's `empty if-body' warning. */ +# define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0)) +# ifndef YYSTACK_ALLOC_MAXIMUM + /* The OS might guarantee only one guard page at the bottom of the stack, + and a page size can be as small as 4096 bytes. So we cannot safely + invoke alloca (N) if N exceeds 4096. Use a slightly smaller number + to allow for a few compiler-allocated temporary stack slots. */ +# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */ +# endif +# else +# define YYSTACK_ALLOC YYMALLOC +# define YYSTACK_FREE YYFREE +# ifndef YYSTACK_ALLOC_MAXIMUM +# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM +# endif +# ifdef __cplusplus +extern "C" { +# endif +# ifndef YYMALLOC +# define YYMALLOC malloc +# if ! defined malloc && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */ +# endif +# endif +# ifndef YYFREE +# define YYFREE free +# if ! defined free && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +void free (void *); /* INFRINGES ON USER NAME SPACE */ +# endif +# endif +# ifdef __cplusplus +} +# endif +# endif +#endif /* ! defined yyoverflow || YYERROR_VERBOSE */ + + +#if (! defined yyoverflow \ + && (! defined __cplusplus \ + || (defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL \ + && defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL))) + +/* A type that is properly aligned for any stack member. */ +union yyalloc +{ + yytype_int16 yyss; + YYSTYPE yyvs; + YYLTYPE yyls; +}; + +/* The size of the maximum gap between one aligned stack and the next. */ +# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1) + +/* The size of an array large to enough to hold all stacks, each with + N elements. */ +# define YYSTACK_BYTES(N) \ + ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \ + + 2 * YYSTACK_GAP_MAXIMUM) + +/* Copy COUNT objects from FROM to TO. The source and destination do + not overlap. */ +# ifndef YYCOPY +# if defined __GNUC__ && 1 < __GNUC__ +# define YYCOPY(To, From, Count) \ + __builtin_memcpy (To, From, (Count) * sizeof (*(From))) +# else +# define YYCOPY(To, From, Count) \ + do \ + { \ + YYSIZE_T yyi; \ + for (yyi = 0; yyi < (Count); yyi++) \ + (To)[yyi] = (From)[yyi]; \ + } \ + while (YYID (0)) +# endif +# endif + +/* Relocate STACK from its old location to the new one. The + local variables YYSIZE and YYSTACKSIZE give the old and new number of + elements in the stack, and YYPTR gives the new location of the + stack. Advance YYPTR to a properly aligned location for the next + stack. */ +# define YYSTACK_RELOCATE(Stack) \ + do \ + { \ + YYSIZE_T yynewbytes; \ + YYCOPY (&yyptr->Stack, Stack, yysize); \ + Stack = &yyptr->Stack; \ + yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \ + yyptr += yynewbytes / sizeof (*yyptr); \ + } \ + while (YYID (0)) + +#endif + +/* YYFINAL -- State number of the termination state. */ +#define YYFINAL 10 +/* YYLAST -- Last index in YYTABLE. */ +#define YYLAST 140 + +/* YYNTOKENS -- Number of terminals. */ +#define YYNTOKENS 24 +/* YYNNTS -- Number of nonterminals. */ +#define YYNNTS 3 +/* YYNRULES -- Number of rules. */ +#define YYNRULES 23 +/* YYNRULES -- Number of states. */ +#define YYNSTATES 46 + +/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */ +#define YYUNDEFTOK 2 +#define YYMAXUTOK 278 + +#define YYTRANSLATE(YYX) \ + ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK) + +/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */ +static const yytype_uint8 yytranslate[] = +{ + 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 1, 2, 3, 4, + 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, + 15, 16, 17, 18, 19, 20, 21, 22, 23 +}; + +#if YYDEBUG +/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in + YYRHS. */ +static const yytype_uint8 yyprhs[] = +{ + 0, 0, 3, 5, 6, 8, 12, 16, 20, 24, + 28, 32, 36, 40, 44, 48, 52, 55, 58, 62, + 66, 70, 74, 78 +}; + +/* YYRHS -- A `-1'-separated list of the rules' RHS. */ +static const yytype_int8 yyrhs[] = +{ + 25, 0, -1, 26, -1, -1, 23, -1, 21, 26, + 22, -1, 26, 5, 26, -1, 26, 6, 26, -1, + 26, 12, 26, -1, 26, 11, 26, -1, 26, 10, + 26, -1, 26, 9, 26, -1, 26, 8, 26, -1, + 26, 7, 26, -1, 26, 14, 26, -1, 26, 13, + 26, -1, 13, 26, -1, 18, 26, -1, 26, 17, + 26, -1, 26, 16, 26, -1, 26, 15, 26, -1, + 26, 20, 26, -1, 26, 19, 26, -1, 26, 4, + 26, 3, 26, -1 +}; + +/* YYRLINE[YYN] -- source line where rule number YYN was defined. */ +static const yytype_uint16 yyrline[] = +{ + 0, 175, 175, 183, 190, 191, 195, 199, 203, 207, + 211, 215, 219, 223, 227, 231, 235, 239, 243, 247, + 251, 255, 259, 263 +}; +#endif + +#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE +/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM. + First, the terminals, then, starting at YYNTOKENS, nonterminals. */ +static const char *const yytname[] = +{ + "$end", "error", "$undefined", "TOK_COLONCOLON", "TOK_COND", "TOK_OR", + "TOK_AND", "TOK_NE", "TOK_LE", "TOK_GE", "TOK_LT", "TOK_GT", "TOK_EQ", + "TOK_MINUS", "TOK_PLUS", "TOK_MOD", "TOK_DIV", "TOK_MULT", "TOK_COMPL", + "TOK_EQTILDE", "TOK_COLON", "TOK_LP", "TOK_RP", "TOKEN", "$accept", + "start", "expr", 0 +}; +#endif + +# ifdef YYPRINT +/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to + token YYLEX-NUM. */ +static const yytype_uint16 yytoknum[] = +{ + 0, 256, 257, 258, 259, 260, 261, 262, 263, 264, + 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, + 275, 276, 277, 278 +}; +# endif + +/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */ +static const yytype_uint8 yyr1[] = +{ + 0, 24, 25, 25, 26, 26, 26, 26, 26, 26, + 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, + 26, 26, 26, 26 +}; + +/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */ +static const yytype_uint8 yyr2[] = +{ + 0, 2, 1, 0, 1, 3, 3, 3, 3, 3, + 3, 3, 3, 3, 3, 3, 2, 2, 3, 3, + 3, 3, 3, 5 +}; + +/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state + STATE-NUM when YYTABLE doesn't specify something else to do. Zero + means the default is an error. */ +static const yytype_uint8 yydefact[] = +{ + 3, 0, 0, 0, 4, 0, 2, 16, 17, 0, + 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 5, 0, 6, + 7, 13, 12, 11, 10, 9, 8, 15, 14, 20, + 19, 18, 22, 21, 0, 23 +}; + +/* YYDEFGOTO[NTERM-NUM]. */ +static const yytype_int8 yydefgoto[] = +{ + -1, 5, 6 +}; + +/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing + STATE-NUM. */ +#define YYPACT_NINF -13 +static const yytype_int8 yypact[] = +{ + 109, 109, 109, 109, -13, 6, 59, 106, 106, 22, + -13, 109, 109, 109, 109, 109, 109, 109, 109, 109, + 109, 109, 109, 109, 109, 109, 109, -13, 42, 90, + 104, 120, 120, 120, 120, 120, 120, -12, -12, 106, + 106, 106, -13, -13, 109, 75 +}; + +/* YYPGOTO[NTERM-NUM]. */ +static const yytype_int8 yypgoto[] = +{ + -13, -13, -1 +}; + +/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If + positive, shift that token. If negative, reduce the rule which + number is the opposite. If zero, do what YYDEFACT says. + If YYTABLE_NINF, syntax error. */ +#define YYTABLE_NINF -1 +static const yytype_uint8 yytable[] = +{ + 7, 8, 9, 22, 23, 24, 10, 25, 26, 0, + 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, + 38, 39, 40, 41, 42, 43, 11, 12, 13, 14, + 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, + 0, 25, 26, 45, 27, 44, 11, 12, 13, 14, + 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, + 0, 25, 26, 11, 12, 13, 14, 15, 16, 17, + 18, 19, 20, 21, 22, 23, 24, 0, 25, 26, + 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, + 22, 23, 24, 0, 25, 26, 13, 14, 15, 16, + 17, 18, 19, 20, 21, 22, 23, 24, 0, 25, + 26, 14, 15, 16, 17, 18, 19, 20, 21, 22, + 23, 24, 1, 25, 26, 25, 26, 2, 0, 0, + 3, 0, 4, 20, 21, 22, 23, 24, 0, 25, + 26 +}; + +static const yytype_int8 yycheck[] = +{ + 1, 2, 3, 15, 16, 17, 0, 19, 20, -1, + 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, + 21, 22, 23, 24, 25, 26, 4, 5, 6, 7, + 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, + -1, 19, 20, 44, 22, 3, 4, 5, 6, 7, + 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, + -1, 19, 20, 4, 5, 6, 7, 8, 9, 10, + 11, 12, 13, 14, 15, 16, 17, -1, 19, 20, + 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, + 15, 16, 17, -1, 19, 20, 6, 7, 8, 9, + 10, 11, 12, 13, 14, 15, 16, 17, -1, 19, + 20, 7, 8, 9, 10, 11, 12, 13, 14, 15, + 16, 17, 13, 19, 20, 19, 20, 18, -1, -1, + 21, -1, 23, 13, 14, 15, 16, 17, -1, 19, + 20 +}; + +/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing + symbol of state STATE-NUM. */ +static const yytype_uint8 yystos[] = +{ + 0, 13, 18, 21, 23, 25, 26, 26, 26, 26, + 0, 4, 5, 6, 7, 8, 9, 10, 11, 12, + 13, 14, 15, 16, 17, 19, 20, 22, 26, 26, + 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, + 26, 26, 26, 26, 3, 26 +}; + +#define yyerrok (yyerrstatus = 0) +#define yyclearin (yychar = YYEMPTY) +#define YYEMPTY (-2) +#define YYEOF 0 + +#define YYACCEPT goto yyacceptlab +#define YYABORT goto yyabortlab +#define YYERROR goto yyerrorlab + + +/* Like YYERROR except do call yyerror. This remains here temporarily + to ease the transition to the new meaning of YYERROR, for GCC. + Once GCC version 2 has supplanted version 1, this can go. */ + +#define YYFAIL goto yyerrlab + +#define YYRECOVERING() (!!yyerrstatus) + +#define YYBACKUP(Token, Value) \ +do \ + if (yychar == YYEMPTY && yylen == 1) \ + { \ + yychar = (Token); \ + yylval = (Value); \ + yytoken = YYTRANSLATE (yychar); \ + YYPOPSTACK (1); \ + goto yybackup; \ + } \ + else \ + { \ + yyerror (YY_("syntax error: cannot back up")); \ + YYERROR; \ + } \ +while (YYID (0)) + + +#define YYTERROR 1 +#define YYERRCODE 256 + + +/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N]. + If N is 0, then set CURRENT to the empty location which ends + the previous symbol: RHS[0] (always defined). */ + +#define YYRHSLOC(Rhs, K) ((Rhs)[K]) +#ifndef YYLLOC_DEFAULT +# define YYLLOC_DEFAULT(Current, Rhs, N) \ + do \ + if (YYID (N)) \ + { \ + (Current).first_line = YYRHSLOC (Rhs, 1).first_line; \ + (Current).first_column = YYRHSLOC (Rhs, 1).first_column; \ + (Current).last_line = YYRHSLOC (Rhs, N).last_line; \ + (Current).last_column = YYRHSLOC (Rhs, N).last_column; \ + } \ + else \ + { \ + (Current).first_line = (Current).last_line = \ + YYRHSLOC (Rhs, 0).last_line; \ + (Current).first_column = (Current).last_column = \ + YYRHSLOC (Rhs, 0).last_column; \ + } \ + while (YYID (0)) +#endif + + +/* YY_LOCATION_PRINT -- Print the location on the stream. + This macro was not mandated originally: define only if we know + we won't break user code: when these are the locations we know. */ + +#ifndef YY_LOCATION_PRINT +# if YYLTYPE_IS_TRIVIAL +# define YY_LOCATION_PRINT(File, Loc) \ + fprintf (File, "%d.%d-%d.%d", \ + (Loc).first_line, (Loc).first_column, \ + (Loc).last_line, (Loc).last_column) +# else +# define YY_LOCATION_PRINT(File, Loc) ((void) 0) +# endif +#endif + + +/* YYLEX -- calling `yylex' with the right arguments. */ + +#ifdef YYLEX_PARAM +# define YYLEX yylex (&yylval, &yylloc, YYLEX_PARAM) +#else +# define YYLEX yylex (&yylval, &yylloc) +#endif + +/* Enable debugging if requested. */ +#if YYDEBUG + +# ifndef YYFPRINTF +# include <stdio.h> /* INFRINGES ON USER NAME SPACE */ +# define YYFPRINTF fprintf +# endif + +# define YYDPRINTF(Args) \ +do { \ + if (yydebug) \ + YYFPRINTF Args; \ +} while (YYID (0)) + +# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \ +do { \ + if (yydebug) \ + { \ + YYFPRINTF (stderr, "%s ", Title); \ + yy_symbol_print (stderr, \ + Type, Value, Location); \ + YYFPRINTF (stderr, "\n"); \ + } \ +} while (YYID (0)) + + +/*--------------------------------. +| Print this symbol on YYOUTPUT. | +`--------------------------------*/ + +/*ARGSUSED*/ +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static void +yy_symbol_value_print (FILE *yyoutput, int yytype, const YYSTYPE * const yyvaluep, const YYLTYPE * const yylocationp) +#else +static void +yy_symbol_value_print (yyoutput, yytype, yyvaluep, yylocationp) + FILE *yyoutput; + int yytype; + const YYSTYPE * const yyvaluep; + const YYLTYPE * const yylocationp; +#endif +{ + if (!yyvaluep) + return; + YYUSE (yylocationp); +# ifdef YYPRINT + if (yytype < YYNTOKENS) + YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep); +# else + YYUSE (yyoutput); +# endif + switch (yytype) + { + default: + break; + } +} + + +/*--------------------------------. +| Print this symbol on YYOUTPUT. | +`--------------------------------*/ + +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static void +yy_symbol_print (FILE *yyoutput, int yytype, const YYSTYPE * const yyvaluep, const YYLTYPE * const yylocationp) +#else +static void +yy_symbol_print (yyoutput, yytype, yyvaluep, yylocationp) + FILE *yyoutput; + int yytype; + const YYSTYPE * const yyvaluep; + const YYLTYPE * const yylocationp; +#endif +{ + if (yytype < YYNTOKENS) + YYFPRINTF (yyoutput, "token %s (", yytname[yytype]); + else + YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]); + + YY_LOCATION_PRINT (yyoutput, *yylocationp); + YYFPRINTF (yyoutput, ": "); + yy_symbol_value_print (yyoutput, yytype, yyvaluep, yylocationp); + YYFPRINTF (yyoutput, ")"); +} + +/*------------------------------------------------------------------. +| yy_stack_print -- Print the state stack from its BOTTOM up to its | +| TOP (included). | +`------------------------------------------------------------------*/ + +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static void +yy_stack_print (yytype_int16 *bottom, yytype_int16 *top) +#else +static void +yy_stack_print (bottom, top) + yytype_int16 *bottom; + yytype_int16 *top; +#endif +{ + YYFPRINTF (stderr, "Stack now"); + for (; bottom <= top; ++bottom) + YYFPRINTF (stderr, " %d", *bottom); + YYFPRINTF (stderr, "\n"); +} + +# define YY_STACK_PRINT(Bottom, Top) \ +do { \ + if (yydebug) \ + yy_stack_print ((Bottom), (Top)); \ +} while (YYID (0)) + + +/*------------------------------------------------. +| Report that the YYRULE is going to be reduced. | +`------------------------------------------------*/ + +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static void +yy_reduce_print (YYSTYPE *yyvsp, YYLTYPE *yylsp, int yyrule) +#else +static void +yy_reduce_print (yyvsp, yylsp, yyrule + ) + YYSTYPE *yyvsp; + YYLTYPE *yylsp; + int yyrule; +#endif +{ + int yynrhs = yyr2[yyrule]; + int yyi; + unsigned long int yylno = yyrline[yyrule]; + YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n", + yyrule - 1, yylno); + /* The symbols being reduced. */ + for (yyi = 0; yyi < yynrhs; yyi++) + { + fprintf (stderr, " $%d = ", yyi + 1); + yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi], + &(yyvsp[(yyi + 1) - (yynrhs)]) + , &(yylsp[(yyi + 1) - (yynrhs)]) ); + fprintf (stderr, "\n"); + } +} + +# define YY_REDUCE_PRINT(Rule) \ +do { \ + if (yydebug) \ + yy_reduce_print (yyvsp, yylsp, Rule); \ +} while (YYID (0)) + +/* Nonzero means print parse trace. It is left uninitialized so that + multiple parsers can coexist. */ +int yydebug; +#else /* !YYDEBUG */ +# define YYDPRINTF(Args) +# define YY_SYMBOL_PRINT(Title, Type, Value, Location) +# define YY_STACK_PRINT(Bottom, Top) +# define YY_REDUCE_PRINT(Rule) +#endif /* !YYDEBUG */ + + +/* YYINITDEPTH -- initial size of the parser's stacks. */ +#ifndef YYINITDEPTH +# define YYINITDEPTH 200 +#endif + +/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only + if the built-in stack extension method is used). + + Do not make this value too large; the results are undefined if + YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH) + evaluated with infinite-precision integer arithmetic. */ + +#ifndef YYMAXDEPTH +# define YYMAXDEPTH 10000 +#endif + + + +#if YYERROR_VERBOSE + +# ifndef yystrlen +# if defined __GLIBC__ && defined _STRING_H +# define yystrlen strlen +# else +/* Return the length of YYSTR. */ +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static YYSIZE_T +yystrlen (const char *yystr) +#else +static YYSIZE_T +yystrlen (yystr) + const char *yystr; +#endif +{ + YYSIZE_T yylen; + for (yylen = 0; yystr[yylen]; yylen++) + continue; + return yylen; +} +# endif +# endif + +# ifndef yystpcpy +# if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE +# define yystpcpy stpcpy +# else +/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in + YYDEST. */ +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static char * +yystpcpy (char *yydest, const char *yysrc) +#else +static char * +yystpcpy (yydest, yysrc) + char *yydest; + const char *yysrc; +#endif +{ + char *yyd = yydest; + const char *yys = yysrc; + + while ((*yyd++ = *yys++) != '\0') + continue; + + return yyd - 1; +} +# endif +# endif + +# ifndef yytnamerr +/* Copy to YYRES the contents of YYSTR after stripping away unnecessary + quotes and backslashes, so that it's suitable for yyerror. The + heuristic is that double-quoting is unnecessary unless the string + contains an apostrophe, a comma, or backslash (other than + backslash-backslash). YYSTR is taken from yytname. If YYRES is + null, do not copy; instead, return the length of what the result + would have been. */ +static YYSIZE_T +yytnamerr (char *yyres, const char *yystr) +{ + if (*yystr == '"') + { + size_t yyn = 0; + char const *yyp = yystr; + + for (;;) + switch (*++yyp) + { + case '\'': + case ',': + goto do_not_strip_quotes; + + case '\\': + if (*++yyp != '\\') + goto do_not_strip_quotes; + /* Fall through. */ + default: + if (yyres) + yyres[yyn] = *yyp; + yyn++; + break; + + case '"': + if (yyres) + yyres[yyn] = '\0'; + return yyn; + } + do_not_strip_quotes: ; + } + + if (! yyres) + return yystrlen (yystr); + + return yystpcpy (yyres, yystr) - yyres; +} +# endif + +/* Copy into YYRESULT an error message about the unexpected token + YYCHAR while in state YYSTATE. Return the number of bytes copied, + including the terminating null byte. If YYRESULT is null, do not + copy anything; just return the number of bytes that would be + copied. As a special case, return 0 if an ordinary "syntax error" + message will do. Return YYSIZE_MAXIMUM if overflow occurs during + size calculation. */ +static YYSIZE_T +yysyntax_error (char *yyresult, int yystate, int yychar) +{ + int yyn = yypact[yystate]; + + if (! (YYPACT_NINF < yyn && yyn < YYLAST)) + return 0; + else + { + int yytype = YYTRANSLATE (yychar); + YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]); + YYSIZE_T yysize = yysize0; + YYSIZE_T yysize1; + int yysize_overflow = 0; + enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 }; + char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM]; + int yyx; + +# if 0 + /* This is so xgettext sees the translatable formats that are + constructed on the fly. */ + YY_("syntax error, unexpected %s"); + YY_("syntax error, unexpected %s, expecting %s"); + YY_("syntax error, unexpected %s, expecting %s or %s"); + YY_("syntax error, unexpected %s, expecting %s or %s or %s"); + YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"); +# endif + char *yyfmt; + char const *yyf; + static char const yyunexpected[] = "syntax error, unexpected %s"; + static char const yyexpecting[] = ", expecting %s"; + static char const yyor[] = " or %s"; + char yyformat[sizeof yyunexpected + + sizeof yyexpecting - 1 + + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2) + * (sizeof yyor - 1))]; + char const *yyprefix = yyexpecting; + + /* Start YYX at -YYN if negative to avoid negative indexes in + YYCHECK. */ + int yyxbegin = yyn < 0 ? -yyn : 0; + + /* Stay within bounds of both yycheck and yytname. */ + int yychecklim = YYLAST - yyn; + int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS; + int yycount = 1; + + yyarg[0] = yytname[yytype]; + yyfmt = yystpcpy (yyformat, yyunexpected); + + for (yyx = yyxbegin; yyx < yyxend; ++yyx) + if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) + { + if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM) + { + yycount = 1; + yysize = yysize0; + yyformat[sizeof yyunexpected - 1] = '\0'; + break; + } + yyarg[yycount++] = yytname[yyx]; + yysize1 = yysize + yytnamerr (0, yytname[yyx]); + yysize_overflow |= (yysize1 < yysize); + yysize = yysize1; + yyfmt = yystpcpy (yyfmt, yyprefix); + yyprefix = yyor; + } + + yyf = YY_(yyformat); + yysize1 = yysize + yystrlen (yyf); + yysize_overflow |= (yysize1 < yysize); + yysize = yysize1; + + if (yysize_overflow) + return YYSIZE_MAXIMUM; + + if (yyresult) + { + /* Avoid sprintf, as that infringes on the user's name space. + Don't have undefined behavior even if the translation + produced a string with the wrong number of "%s"s. */ + char *yyp = yyresult; + int yyi = 0; + while ((*yyp = *yyf) != '\0') + { + if (*yyp == '%' && yyf[1] == 's' && yyi < yycount) + { + yyp += yytnamerr (yyp, yyarg[yyi++]); + yyf += 2; + } + else + { + yyp++; + yyf++; + } + } + } + return yysize; + } +} +#endif /* YYERROR_VERBOSE */ + + +/*-----------------------------------------------. +| Release the memory associated to this symbol. | +`-----------------------------------------------*/ + +/*ARGSUSED*/ +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static void +yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep, YYLTYPE *yylocationp) +#else +static void +yydestruct (yymsg, yytype, yyvaluep, yylocationp) + const char *yymsg; + int yytype; + YYSTYPE *yyvaluep; + YYLTYPE *yylocationp; +#endif +{ + YYUSE (yyvaluep); + YYUSE (yylocationp); + + if (!yymsg) + yymsg = "Deleting"; + YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp); + + switch (yytype) + { + case 3: /* "TOK_COLONCOLON" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1257 "ast_expr2.c" + break; + case 4: /* "TOK_COND" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1262 "ast_expr2.c" + break; + case 5: /* "TOK_OR" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1267 "ast_expr2.c" + break; + case 6: /* "TOK_AND" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1272 "ast_expr2.c" + break; + case 7: /* "TOK_NE" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1277 "ast_expr2.c" + break; + case 8: /* "TOK_LE" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1282 "ast_expr2.c" + break; + case 9: /* "TOK_GE" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1287 "ast_expr2.c" + break; + case 10: /* "TOK_LT" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1292 "ast_expr2.c" + break; + case 11: /* "TOK_GT" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1297 "ast_expr2.c" + break; + case 12: /* "TOK_EQ" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1302 "ast_expr2.c" + break; + case 13: /* "TOK_MINUS" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1307 "ast_expr2.c" + break; + case 14: /* "TOK_PLUS" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1312 "ast_expr2.c" + break; + case 15: /* "TOK_MOD" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1317 "ast_expr2.c" + break; + case 16: /* "TOK_DIV" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1322 "ast_expr2.c" + break; + case 17: /* "TOK_MULT" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1327 "ast_expr2.c" + break; + case 18: /* "TOK_COMPL" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1332 "ast_expr2.c" + break; + case 19: /* "TOK_EQTILDE" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1337 "ast_expr2.c" + break; + case 20: /* "TOK_COLON" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1342 "ast_expr2.c" + break; + case 21: /* "TOK_LP" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1347 "ast_expr2.c" + break; + case 22: /* "TOK_RP" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1352 "ast_expr2.c" + break; + case 23: /* "TOKEN" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1357 "ast_expr2.c" + break; + case 26: /* "expr" */ +#line 169 "ast_expr2.y" + { free_value((yyvaluep->val)); }; +#line 1362 "ast_expr2.c" + break; + + default: + break; + } +} + + +/* Prevent warnings from -Wmissing-prototypes. */ + +#ifdef YYPARSE_PARAM +#if defined __STDC__ || defined __cplusplus +int yyparse (void *YYPARSE_PARAM); +#else +int yyparse (); +#endif +#else /* ! YYPARSE_PARAM */ +#if defined __STDC__ || defined __cplusplus +int yyparse (void); +#else +int yyparse (); +#endif +#endif /* ! YYPARSE_PARAM */ + + + + + + +/*----------. +| yyparse. | +`----------*/ + +#ifdef YYPARSE_PARAM +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +int +yyparse (void *YYPARSE_PARAM) +#else +int +yyparse (YYPARSE_PARAM) + void *YYPARSE_PARAM; +#endif +#else /* ! YYPARSE_PARAM */ +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +int +yyparse (void) +#else +int +yyparse () + +#endif +#endif +{ + /* The look-ahead symbol. */ +int yychar; + +/* The semantic value of the look-ahead symbol. */ +YYSTYPE yylval; + +/* Number of syntax errors so far. */ +int yynerrs; +/* Location data for the look-ahead symbol. */ +YYLTYPE yylloc; + + int yystate; + int yyn; + int yyresult; + /* Number of tokens to shift before error messages enabled. */ + int yyerrstatus; + /* Look-ahead token as an internal (translated) token number. */ + int yytoken = 0; +#if YYERROR_VERBOSE + /* Buffer for error messages, and its allocated size. */ + char yymsgbuf[128]; + char *yymsg = yymsgbuf; + YYSIZE_T yymsg_alloc = sizeof yymsgbuf; +#endif + + /* Three stacks and their tools: + `yyss': related to states, + `yyvs': related to semantic values, + `yyls': related to locations. + + Refer to the stacks thru separate pointers, to allow yyoverflow + to reallocate them elsewhere. */ + + /* The state stack. */ + yytype_int16 yyssa[YYINITDEPTH]; + yytype_int16 *yyss = yyssa; + yytype_int16 *yyssp; + + /* The semantic value stack. */ + YYSTYPE yyvsa[YYINITDEPTH]; + YYSTYPE *yyvs = yyvsa; + YYSTYPE *yyvsp; + + /* The location stack. */ + YYLTYPE yylsa[YYINITDEPTH]; + YYLTYPE *yyls = yylsa; + YYLTYPE *yylsp; + /* The locations where the error started and ended. */ + YYLTYPE yyerror_range[2]; + +#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N), yylsp -= (N)) + + YYSIZE_T yystacksize = YYINITDEPTH; + + /* The variables used to return semantic value and location from the + action routines. */ + YYSTYPE yyval; + YYLTYPE yyloc; + + /* The number of symbols on the RHS of the reduced rule. + Keep to zero when no symbol should be popped. */ + int yylen = 0; + + YYDPRINTF ((stderr, "Starting parse\n")); + + yystate = 0; + yyerrstatus = 0; + yynerrs = 0; + yychar = YYEMPTY; /* Cause a token to be read. */ + + /* Initialize stack pointers. + Waste one element of value and location stack + so that they stay on the same level as the state stack. + The wasted elements are never initialized. */ + + yyssp = yyss; + yyvsp = yyvs; + yylsp = yyls; +#if YYLTYPE_IS_TRIVIAL + /* Initialize the default location before parsing starts. */ + yylloc.first_line = yylloc.last_line = 1; + yylloc.first_column = yylloc.last_column = 0; +#endif + + goto yysetstate; + +/*------------------------------------------------------------. +| yynewstate -- Push a new state, which is found in yystate. | +`------------------------------------------------------------*/ + yynewstate: + /* In all cases, when you get here, the value and location stacks + have just been pushed. So pushing a state here evens the stacks. */ + yyssp++; + + yysetstate: + *yyssp = yystate; + + if (yyss + yystacksize - 1 <= yyssp) + { + /* Get the current used size of the three stacks, in elements. */ + YYSIZE_T yysize = yyssp - yyss + 1; + +#ifdef yyoverflow + { + /* Give user a chance to reallocate the stack. Use copies of + these so that the &'s don't force the real ones into + memory. */ + YYSTYPE *yyvs1 = yyvs; + yytype_int16 *yyss1 = yyss; + YYLTYPE *yyls1 = yyls; + + /* Each stack pointer address is followed by the size of the + data in use in that stack, in bytes. This used to be a + conditional around just the two extra args, but that might + be undefined if yyoverflow is a macro. */ + yyoverflow (YY_("memory exhausted"), + &yyss1, yysize * sizeof (*yyssp), + &yyvs1, yysize * sizeof (*yyvsp), + &yyls1, yysize * sizeof (*yylsp), + &yystacksize); + yyls = yyls1; + yyss = yyss1; + yyvs = yyvs1; + } +#else /* no yyoverflow */ +# ifndef YYSTACK_RELOCATE + goto yyexhaustedlab; +# else + /* Extend the stack our own way. */ + if (YYMAXDEPTH <= yystacksize) + goto yyexhaustedlab; + yystacksize *= 2; + if (YYMAXDEPTH < yystacksize) + yystacksize = YYMAXDEPTH; + + { + yytype_int16 *yyss1 = yyss; + union yyalloc *yyptr = + (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize)); + if (! yyptr) + goto yyexhaustedlab; + YYSTACK_RELOCATE (yyss); + YYSTACK_RELOCATE (yyvs); + YYSTACK_RELOCATE (yyls); +# undef YYSTACK_RELOCATE + if (yyss1 != yyssa) + YYSTACK_FREE (yyss1); + } +# endif +#endif /* no yyoverflow */ + + yyssp = yyss + yysize - 1; + yyvsp = yyvs + yysize - 1; + yylsp = yyls + yysize - 1; + + YYDPRINTF ((stderr, "Stack size increased to %lu\n", + (unsigned long int) yystacksize)); + + if (yyss + yystacksize - 1 <= yyssp) + YYABORT; + } + + YYDPRINTF ((stderr, "Entering state %d\n", yystate)); + + goto yybackup; + +/*-----------. +| yybackup. | +`-----------*/ +yybackup: + + /* Do appropriate processing given the current state. Read a + look-ahead token if we need one and don't already have one. */ + + /* First try to decide what to do without reference to look-ahead token. */ + yyn = yypact[yystate]; + if (yyn == YYPACT_NINF) + goto yydefault; + + /* Not known => get a look-ahead token if don't already have one. */ + + /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol. */ + if (yychar == YYEMPTY) + { + YYDPRINTF ((stderr, "Reading a token: ")); + yychar = YYLEX; + } + + if (yychar <= YYEOF) + { + yychar = yytoken = YYEOF; + YYDPRINTF ((stderr, "Now at end of input.\n")); + } + else + { + yytoken = YYTRANSLATE (yychar); + YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc); + } + + /* If the proper action on seeing token YYTOKEN is to reduce or to + detect an error, take that action. */ + yyn += yytoken; + if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken) + goto yydefault; + yyn = yytable[yyn]; + if (yyn <= 0) + { + if (yyn == 0 || yyn == YYTABLE_NINF) + goto yyerrlab; + yyn = -yyn; + goto yyreduce; + } + + if (yyn == YYFINAL) + YYACCEPT; + + /* Count tokens shifted since error; after three, turn off error + status. */ + if (yyerrstatus) + yyerrstatus--; + + /* Shift the look-ahead token. */ + YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc); + + /* Discard the shifted token unless it is eof. */ + if (yychar != YYEOF) + yychar = YYEMPTY; + + yystate = yyn; + *++yyvsp = yylval; + *++yylsp = yylloc; + goto yynewstate; + + +/*-----------------------------------------------------------. +| yydefault -- do the default action for the current state. | +`-----------------------------------------------------------*/ +yydefault: + yyn = yydefact[yystate]; + if (yyn == 0) + goto yyerrlab; + goto yyreduce; + + +/*-----------------------------. +| yyreduce -- Do a reduction. | +`-----------------------------*/ +yyreduce: + /* yyn is the number of a rule to reduce with. */ + yylen = yyr2[yyn]; + + /* If YYLEN is nonzero, implement the default value of the action: + `$$ = $1'. + + Otherwise, the following line sets YYVAL to garbage. + This behavior is undocumented and Bison + users should not rely upon it. Assigning to YYVAL + unconditionally makes the parser a bit smaller, and it avoids a + GCC warning that YYVAL may be used uninitialized. */ + yyval = yyvsp[1-yylen]; + + /* Default location. */ + YYLLOC_DEFAULT (yyloc, (yylsp - yylen), yylen); + YY_REDUCE_PRINT (yyn); + switch (yyn) + { + case 2: +#line 175 "ast_expr2.y" + { ((struct parse_io *)parseio)->val = (struct val *)calloc(sizeof(struct val),1); + ((struct parse_io *)parseio)->val->type = (yyvsp[(1) - (1)].val)->type; + if( (yyvsp[(1) - (1)].val)->type == AST_EXPR_integer ) + ((struct parse_io *)parseio)->val->u.i = (yyvsp[(1) - (1)].val)->u.i; + else + ((struct parse_io *)parseio)->val->u.s = (yyvsp[(1) - (1)].val)->u.s; + free((yyvsp[(1) - (1)].val)); + ;} + break; + + case 3: +#line 183 "ast_expr2.y" + {/* nothing */ ((struct parse_io *)parseio)->val = (struct val *)calloc(sizeof(struct val),1); + ((struct parse_io *)parseio)->val->type = AST_EXPR_string; + ((struct parse_io *)parseio)->val->u.s = strdup(""); + ;} + break; + + case 4: +#line 190 "ast_expr2.y" + { (yyval.val)= (yyvsp[(1) - (1)].val);;} + break; + + case 5: +#line 191 "ast_expr2.y" + { (yyval.val) = (yyvsp[(2) - (3)].val); + (yyloc).first_column = (yylsp[(1) - (3)]).first_column; (yyloc).last_column = (yylsp[(3) - (3)]).last_column; + (yyloc).first_line=0; (yyloc).last_line=0; + DESTROY((yyvsp[(1) - (3)].val)); DESTROY((yyvsp[(3) - (3)].val)); ;} + break; + + case 6: +#line 195 "ast_expr2.y" + { (yyval.val) = op_or ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); + DESTROY((yyvsp[(2) - (3)].val)); + (yyloc).first_column = (yylsp[(1) - (3)]).first_column; (yyloc).last_column = (yylsp[(3) - (3)]).last_column; + (yyloc).first_line=0; (yyloc).last_line=0;;} + break; + + case 7: +#line 199 "ast_expr2.y" + { (yyval.val) = op_and ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); + DESTROY((yyvsp[(2) - (3)].val)); + (yyloc).first_column = (yylsp[(1) - (3)]).first_column; (yyloc).last_column = (yylsp[(3) - (3)]).last_column; + (yyloc).first_line=0; (yyloc).last_line=0;;} + break; + + case 8: +#line 203 "ast_expr2.y" + { (yyval.val) = op_eq ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); + DESTROY((yyvsp[(2) - (3)].val)); + (yyloc).first_column = (yylsp[(1) - (3)]).first_column; (yyloc).last_column = (yylsp[(3) - (3)]).last_column; + (yyloc).first_line=0; (yyloc).last_line=0;;} + break; + + case 9: +#line 207 "ast_expr2.y" + { (yyval.val) = op_gt ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); + DESTROY((yyvsp[(2) - (3)].val)); + (yyloc).first_column = (yylsp[(1) - (3)]).first_column; (yyloc).last_column = (yylsp[(3) - (3)]).last_column; + (yyloc).first_line=0; (yyloc).last_line=0;;} + break; + + case 10: +#line 211 "ast_expr2.y" + { (yyval.val) = op_lt ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); + DESTROY((yyvsp[(2) - (3)].val)); + (yyloc).first_column = (yylsp[(1) - (3)]).first_column; (yyloc).last_column = (yylsp[(3) - (3)]).last_column; + (yyloc).first_line=0; (yyloc).last_line=0;;} + break; + + case 11: +#line 215 "ast_expr2.y" + { (yyval.val) = op_ge ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); + DESTROY((yyvsp[(2) - (3)].val)); + (yyloc).first_column = (yylsp[(1) - (3)]).first_column; (yyloc).last_column = (yylsp[(3) - (3)]).last_column; + (yyloc).first_line=0; (yyloc).last_line=0;;} + break; + + case 12: +#line 219 "ast_expr2.y" + { (yyval.val) = op_le ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); + DESTROY((yyvsp[(2) - (3)].val)); + (yyloc).first_column = (yylsp[(1) - (3)]).first_column; (yyloc).last_column = (yylsp[(3) - (3)]).last_column; + (yyloc).first_line=0; (yyloc).last_line=0;;} + break; + + case 13: +#line 223 "ast_expr2.y" + { (yyval.val) = op_ne ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); + DESTROY((yyvsp[(2) - (3)].val)); + (yyloc).first_column = (yylsp[(1) - (3)]).first_column; (yyloc).last_column = (yylsp[(3) - (3)]).last_column; + (yyloc).first_line=0; (yyloc).last_line=0;;} + break; + + case 14: +#line 227 "ast_expr2.y" + { (yyval.val) = op_plus ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); + DESTROY((yyvsp[(2) - (3)].val)); + (yyloc).first_column = (yylsp[(1) - (3)]).first_column; (yyloc).last_column = (yylsp[(3) - (3)]).last_column; + (yyloc).first_line=0; (yyloc).last_line=0;;} + break; + + case 15: +#line 231 "ast_expr2.y" + { (yyval.val) = op_minus ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); + DESTROY((yyvsp[(2) - (3)].val)); + (yyloc).first_column = (yylsp[(1) - (3)]).first_column; (yyloc).last_column = (yylsp[(3) - (3)]).last_column; + (yyloc).first_line=0; (yyloc).last_line=0;;} + break; + + case 16: +#line 235 "ast_expr2.y" + { (yyval.val) = op_negate ((yyvsp[(2) - (2)].val)); + DESTROY((yyvsp[(1) - (2)].val)); + (yyloc).first_column = (yylsp[(1) - (2)]).first_column; (yyloc).last_column = (yylsp[(2) - (2)]).last_column; + (yyloc).first_line=0; (yyloc).last_line=0;;} + break; + + case 17: +#line 239 "ast_expr2.y" + { (yyval.val) = op_compl ((yyvsp[(2) - (2)].val)); + DESTROY((yyvsp[(1) - (2)].val)); + (yyloc).first_column = (yylsp[(1) - (2)]).first_column; (yyloc).last_column = (yylsp[(2) - (2)]).last_column; + (yyloc).first_line=0; (yyloc).last_line=0;;} + break; + + case 18: +#line 243 "ast_expr2.y" + { (yyval.val) = op_times ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); + DESTROY((yyvsp[(2) - (3)].val)); + (yyloc).first_column = (yylsp[(1) - (3)]).first_column; (yyloc).last_column = (yylsp[(3) - (3)]).last_column; + (yyloc).first_line=0; (yyloc).last_line=0;;} + break; + + case 19: +#line 247 "ast_expr2.y" + { (yyval.val) = op_div ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); + DESTROY((yyvsp[(2) - (3)].val)); + (yyloc).first_column = (yylsp[(1) - (3)]).first_column; (yyloc).last_column = (yylsp[(3) - (3)]).last_column; + (yyloc).first_line=0; (yyloc).last_line=0;;} + break; + + case 20: +#line 251 "ast_expr2.y" + { (yyval.val) = op_rem ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); + DESTROY((yyvsp[(2) - (3)].val)); + (yyloc).first_column = (yylsp[(1) - (3)]).first_column; (yyloc).last_column = (yylsp[(3) - (3)]).last_column; + (yyloc).first_line=0; (yyloc).last_line=0;;} + break; + + case 21: +#line 255 "ast_expr2.y" + { (yyval.val) = op_colon ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); + DESTROY((yyvsp[(2) - (3)].val)); + (yyloc).first_column = (yylsp[(1) - (3)]).first_column; (yyloc).last_column = (yylsp[(3) - (3)]).last_column; + (yyloc).first_line=0; (yyloc).last_line=0;;} + break; + + case 22: +#line 259 "ast_expr2.y" + { (yyval.val) = op_eqtilde ((yyvsp[(1) - (3)].val), (yyvsp[(3) - (3)].val)); + DESTROY((yyvsp[(2) - (3)].val)); + (yyloc).first_column = (yylsp[(1) - (3)]).first_column; (yyloc).last_column = (yylsp[(3) - (3)]).last_column; + (yyloc).first_line=0; (yyloc).last_line=0;;} + break; + + case 23: +#line 263 "ast_expr2.y" + { (yyval.val) = op_cond ((yyvsp[(1) - (5)].val), (yyvsp[(3) - (5)].val), (yyvsp[(5) - (5)].val)); + DESTROY((yyvsp[(2) - (5)].val)); + DESTROY((yyvsp[(4) - (5)].val)); + (yyloc).first_column = (yylsp[(1) - (5)]).first_column; (yyloc).last_column = (yylsp[(3) - (5)]).last_column; + (yyloc).first_line=0; (yyloc).last_line=0;;} + break; + + +/* Line 1270 of yacc.c. */ +#line 1864 "ast_expr2.c" + default: break; + } + YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc); + + YYPOPSTACK (yylen); + yylen = 0; + YY_STACK_PRINT (yyss, yyssp); + + *++yyvsp = yyval; + *++yylsp = yyloc; + + /* Now `shift' the result of the reduction. Determine what state + that goes to, based on the state we popped back to and the rule + number reduced by. */ + + yyn = yyr1[yyn]; + + yystate = yypgoto[yyn - YYNTOKENS] + *yyssp; + if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp) + yystate = yytable[yystate]; + else + yystate = yydefgoto[yyn - YYNTOKENS]; + + goto yynewstate; + + +/*------------------------------------. +| yyerrlab -- here on detecting error | +`------------------------------------*/ +yyerrlab: + /* If not already recovering from an error, report this error. */ + if (!yyerrstatus) + { + ++yynerrs; +#if ! YYERROR_VERBOSE + yyerror (YY_("syntax error")); +#else + { + YYSIZE_T yysize = yysyntax_error (0, yystate, yychar); + if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM) + { + YYSIZE_T yyalloc = 2 * yysize; + if (! (yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM)) + yyalloc = YYSTACK_ALLOC_MAXIMUM; + if (yymsg != yymsgbuf) + YYSTACK_FREE (yymsg); + yymsg = (char *) YYSTACK_ALLOC (yyalloc); + if (yymsg) + yymsg_alloc = yyalloc; + else + { + yymsg = yymsgbuf; + yymsg_alloc = sizeof yymsgbuf; + } + } + + if (0 < yysize && yysize <= yymsg_alloc) + { + (void) yysyntax_error (yymsg, yystate, yychar); + yyerror (yymsg); + } + else + { + yyerror (YY_("syntax error")); + if (yysize != 0) + goto yyexhaustedlab; + } + } +#endif + } + + yyerror_range[0] = yylloc; + + if (yyerrstatus == 3) + { + /* If just tried and failed to reuse look-ahead token after an + error, discard it. */ + + if (yychar <= YYEOF) + { + /* Return failure if at end of input. */ + if (yychar == YYEOF) + YYABORT; + } + else + { + yydestruct ("Error: discarding", + yytoken, &yylval, &yylloc); + yychar = YYEMPTY; + } + } + + /* Else will try to reuse look-ahead token after shifting the error + token. */ + goto yyerrlab1; + + +/*---------------------------------------------------. +| yyerrorlab -- error raised explicitly by YYERROR. | +`---------------------------------------------------*/ +yyerrorlab: + + /* Pacify compilers like GCC when the user code never invokes + YYERROR and the label yyerrorlab therefore never appears in user + code. */ + if (/*CONSTCOND*/ 0) + goto yyerrorlab; + + yyerror_range[0] = yylsp[1-yylen]; + /* Do not reclaim the symbols of the rule which action triggered + this YYERROR. */ + YYPOPSTACK (yylen); + yylen = 0; + YY_STACK_PRINT (yyss, yyssp); + yystate = *yyssp; + goto yyerrlab1; + + +/*-------------------------------------------------------------. +| yyerrlab1 -- common code for both syntax error and YYERROR. | +`-------------------------------------------------------------*/ +yyerrlab1: + yyerrstatus = 3; /* Each real token shifted decrements this. */ + + for (;;) + { + yyn = yypact[yystate]; + if (yyn != YYPACT_NINF) + { + yyn += YYTERROR; + if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR) + { + yyn = yytable[yyn]; + if (0 < yyn) + break; + } + } + + /* Pop the current state because it cannot handle the error token. */ + if (yyssp == yyss) + YYABORT; + + yyerror_range[0] = *yylsp; + yydestruct ("Error: popping", + yystos[yystate], yyvsp, yylsp); + YYPOPSTACK (1); + yystate = *yyssp; + YY_STACK_PRINT (yyss, yyssp); + } + + if (yyn == YYFINAL) + YYACCEPT; + + *++yyvsp = yylval; + + yyerror_range[1] = yylloc; + /* Using YYLLOC is tempting, but would change the location of + the look-ahead. YYLOC is available though. */ + YYLLOC_DEFAULT (yyloc, (yyerror_range - 1), 2); + *++yylsp = yyloc; + + /* Shift the error token. */ + YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp); + + yystate = yyn; + goto yynewstate; + + +/*-------------------------------------. +| yyacceptlab -- YYACCEPT comes here. | +`-------------------------------------*/ +yyacceptlab: + yyresult = 0; + goto yyreturn; + +/*-----------------------------------. +| yyabortlab -- YYABORT comes here. | +`-----------------------------------*/ +yyabortlab: + yyresult = 1; + goto yyreturn; + +#ifndef yyoverflow +/*-------------------------------------------------. +| yyexhaustedlab -- memory exhaustion comes here. | +`-------------------------------------------------*/ +yyexhaustedlab: + yyerror (YY_("memory exhausted")); + yyresult = 2; + /* Fall through. */ +#endif + +yyreturn: + if (yychar != YYEOF && yychar != YYEMPTY) + yydestruct ("Cleanup: discarding lookahead", + yytoken, &yylval, &yylloc); + /* Do not reclaim the symbols of the rule which action triggered + this YYABORT or YYACCEPT. */ + YYPOPSTACK (yylen); + YY_STACK_PRINT (yyss, yyssp); + while (yyssp != yyss) + { + yydestruct ("Cleanup: popping", + yystos[*yyssp], yyvsp, yylsp); + YYPOPSTACK (1); + } +#ifndef yyoverflow + if (yyss != yyssa) + YYSTACK_FREE (yyss); +#endif +#if YYERROR_VERBOSE + if (yymsg != yymsgbuf) + YYSTACK_FREE (yymsg); +#endif + return yyresult; +} + + +#line 270 "ast_expr2.y" + + +static struct val * +make_integer (quad_t i) +{ + struct val *vp; + + vp = (struct val *) malloc (sizeof (*vp)); + if (vp == NULL) { + ast_log(LOG_WARNING, "malloc() failed\n"); + return(NULL); + } + + vp->type = AST_EXPR_integer; + vp->u.i = i; + return vp; +} + +static struct val * +make_str (const char *s) +{ + struct val *vp; + size_t i; + int isint; + + vp = (struct val *) malloc (sizeof (*vp)); + if (vp == NULL || ((vp->u.s = strdup (s)) == NULL)) { + ast_log(LOG_WARNING,"malloc() failed\n"); + return(NULL); + } + + for(i = 1, isint = isdigit(s[0]) || s[0] == '-'; + isint && i < strlen(s); + i++) + { + if(!isdigit(s[i])) + isint = 0; + } + + if (isint) + vp->type = AST_EXPR_numeric_string; + else + vp->type = AST_EXPR_string; + + return vp; +} + + +static void +free_value (struct val *vp) +{ + if (vp==NULL) { + return; + } + if (vp->type == AST_EXPR_string || vp->type == AST_EXPR_numeric_string) + free (vp->u.s); + free(vp); +} + + +static quad_t +to_integer (struct val *vp) +{ + quad_t i; + + if (vp == NULL) { + ast_log(LOG_WARNING,"vp==NULL in to_integer()\n"); + return(0); + } + + if (vp->type == AST_EXPR_integer) + return 1; + + if (vp->type == AST_EXPR_string) + return 0; + + /* vp->type == AST_EXPR_numeric_string, make it numeric */ + errno = 0; + i = strtoll(vp->u.s, (char**)NULL, 10); + if (errno != 0) { + ast_log(LOG_WARNING,"Conversion of %s to integer under/overflowed!\n", vp->u.s); + free(vp->u.s); + vp->u.s = 0; + return(0); + } + free (vp->u.s); + vp->u.i = i; + vp->type = AST_EXPR_integer; + return 1; +} + +static void +strip_quotes(struct val *vp) +{ + if (vp->type != AST_EXPR_string && vp->type != AST_EXPR_numeric_string) + return; + + if( vp->u.s[0] == '"' && vp->u.s[strlen(vp->u.s)-1] == '"' ) + { + char *f, *t; + f = vp->u.s; + t = vp->u.s; + + while( *f ) + { + if( *f && *f != '"' ) + *t++ = *f++; + else + f++; + } + *t = *f; + } +} + +static void +to_string (struct val *vp) +{ + char *tmp; + + if (vp->type == AST_EXPR_string || vp->type == AST_EXPR_numeric_string) + return; + + tmp = malloc ((size_t)25); + if (tmp == NULL) { + ast_log(LOG_WARNING,"malloc() failed\n"); + return; + } + + sprintf(tmp, "%ld", (long int) vp->u.i); + vp->type = AST_EXPR_string; + vp->u.s = tmp; +} + + +static int +isstring (struct val *vp) +{ + /* only TRUE if this string is not a valid integer */ + return (vp->type == AST_EXPR_string); +} + + +static int +is_zero_or_null (struct val *vp) +{ + if (vp->type == AST_EXPR_integer) { + return (vp->u.i == 0); + } else { + return (*vp->u.s == 0 || (to_integer (vp) && vp->u.i == 0)); + } + /* NOTREACHED */ +} + +#ifdef STANDALONE + +void ast_log(int level, const char *file, int line, const char *function, const char *fmt, ...) +{ + va_list vars; + va_start(vars,fmt); + + printf("LOG: lev:%d file:%s line:%d func: %s ", + level, file, line, function); + vprintf(fmt, vars); + fflush(stdout); + va_end(vars); +} + + +int main(int argc,char **argv) { + char s[4096]; + char out[4096]; + FILE *infile; + + if( !argv[1] ) + exit(20); + + if( access(argv[1],F_OK)== 0 ) + { + int ret; + + infile = fopen(argv[1],"r"); + if( !infile ) + { + printf("Sorry, couldn't open %s for reading!\n", argv[1]); + exit(10); + } + while( fgets(s,sizeof(s),infile) ) + { + if( s[strlen(s)-1] == '\n' ) + s[strlen(s)-1] = 0; + + ret = ast_expr(s, out, sizeof(out)); + printf("Expression: %s Result: [%d] '%s'\n", + s, ret, out); + } + fclose(infile); + } + else + { + if (ast_expr(argv[1], s, sizeof(s))) + printf("=====%s======\n",s); + else + printf("No result\n"); + } +} + +#endif + +#undef ast_yyerror +#define ast_yyerror(x) ast_yyerror(x, YYLTYPE *yylloc, struct parse_io *parseio) + +/* I put the ast_yyerror func in the flex input file, + because it refers to the buffer state. Best to + let it access the BUFFER stuff there and not trying + define all the structs, macros etc. in this file! */ + + +static struct val * +op_or (struct val *a, struct val *b) +{ + if (is_zero_or_null (a)) { + free_value (a); + return (b); + } else { + free_value (b); + return (a); + } +} + +static struct val * +op_and (struct val *a, struct val *b) +{ + if (is_zero_or_null (a) || is_zero_or_null (b)) { + free_value (a); + free_value (b); + return (make_integer ((quad_t)0)); + } else { + free_value (b); + return (a); + } +} + +static struct val * +op_eq (struct val *a, struct val *b) +{ + struct val *r; + + if (isstring (a) || isstring (b)) { + to_string (a); + to_string (b); + r = make_integer ((quad_t)(strcoll (a->u.s, b->u.s) == 0)); + } else { +#ifdef DEBUG_FOR_CONVERSIONS + char buffer[2000]; + sprintf(buffer,"Converting '%s' and '%s' ", a->u.s, b->u.s); +#endif + (void)to_integer(a); + (void)to_integer(b); +#ifdef DEBUG_FOR_CONVERSIONS + ast_log(LOG_WARNING,"%s to '%lld' and '%lld'\n", buffer, a->u.i, b->u.i); +#endif + r = make_integer ((quad_t)(a->u.i == b->u.i)); + } + + free_value (a); + free_value (b); + return r; +} + +static struct val * +op_gt (struct val *a, struct val *b) +{ + struct val *r; + + if (isstring (a) || isstring (b)) { + to_string (a); + to_string (b); + r = make_integer ((quad_t)(strcoll (a->u.s, b->u.s) > 0)); + } else { + (void)to_integer(a); + (void)to_integer(b); + r = make_integer ((quad_t)(a->u.i > b->u.i)); + } + + free_value (a); + free_value (b); + return r; +} + +static struct val * +op_lt (struct val *a, struct val *b) +{ + struct val *r; + + if (isstring (a) || isstring (b)) { + to_string (a); + to_string (b); + r = make_integer ((quad_t)(strcoll (a->u.s, b->u.s) < 0)); + } else { + (void)to_integer(a); + (void)to_integer(b); + r = make_integer ((quad_t)(a->u.i < b->u.i)); + } + + free_value (a); + free_value (b); + return r; +} + +static struct val * +op_ge (struct val *a, struct val *b) +{ + struct val *r; + + if (isstring (a) || isstring (b)) { + to_string (a); + to_string (b); + r = make_integer ((quad_t)(strcoll (a->u.s, b->u.s) >= 0)); + } else { + (void)to_integer(a); + (void)to_integer(b); + r = make_integer ((quad_t)(a->u.i >= b->u.i)); + } + + free_value (a); + free_value (b); + return r; +} + +static struct val * +op_le (struct val *a, struct val *b) +{ + struct val *r; + + if (isstring (a) || isstring (b)) { + to_string (a); + to_string (b); + r = make_integer ((quad_t)(strcoll (a->u.s, b->u.s) <= 0)); + } else { + (void)to_integer(a); + (void)to_integer(b); + r = make_integer ((quad_t)(a->u.i <= b->u.i)); + } + + free_value (a); + free_value (b); + return r; +} + +static struct val * +op_cond (struct val *a, struct val *b, struct val *c) +{ + struct val *r; + + if( isstring(a) ) + { + if( strlen(a->u.s) && strcmp(a->u.s, "\"\"") != 0 && strcmp(a->u.s,"0") != 0 ) + { + free_value(a); + free_value(c); + r = b; + } + else + { + free_value(a); + free_value(b); + r = c; + } + } + else + { + (void)to_integer(a); + if( a->u.i ) + { + free_value(a); + free_value(c); + r = b; + } + else + { + free_value(a); + free_value(b); + r = c; + } + } + return r; +} + +static struct val * +op_ne (struct val *a, struct val *b) +{ + struct val *r; + + if (isstring (a) || isstring (b)) { + to_string (a); + to_string (b); + r = make_integer ((quad_t)(strcoll (a->u.s, b->u.s) != 0)); + } else { + (void)to_integer(a); + (void)to_integer(b); + r = make_integer ((quad_t)(a->u.i != b->u.i)); + } + + free_value (a); + free_value (b); + return r; +} + +static int +chk_plus (quad_t a, quad_t b, quad_t r) +{ + /* sum of two positive numbers must be positive */ + if (a > 0 && b > 0 && r <= 0) + return 1; + /* sum of two negative numbers must be negative */ + if (a < 0 && b < 0 && r >= 0) + return 1; + /* all other cases are OK */ + return 0; +} + +static struct val * +op_plus (struct val *a, struct val *b) +{ + struct val *r; + + if (!to_integer (a)) { + if( !extra_error_message_supplied ) + ast_log(LOG_WARNING,"non-numeric argument\n"); + if (!to_integer (b)) { + free_value(a); + free_value(b); + return make_integer(0); + } else { + free_value(a); + return (b); + } + } else if (!to_integer(b)) { + free_value(b); + return (a); + } + + r = make_integer (/*(quad_t)*/(a->u.i + b->u.i)); + if (chk_plus (a->u.i, b->u.i, r->u.i)) { + ast_log(LOG_WARNING,"overflow\n"); + } + free_value (a); + free_value (b); + return r; +} + +static int +chk_minus (quad_t a, quad_t b, quad_t r) +{ + /* special case subtraction of QUAD_MIN */ + if (b == QUAD_MIN) { + if (a >= 0) + return 1; + else + return 0; + } + /* this is allowed for b != QUAD_MIN */ + return chk_plus (a, -b, r); +} + +static struct val * +op_minus (struct val *a, struct val *b) +{ + struct val *r; + + if (!to_integer (a)) { + if( !extra_error_message_supplied ) + ast_log(LOG_WARNING, "non-numeric argument\n"); + if (!to_integer (b)) { + free_value(a); + free_value(b); + return make_integer(0); + } else { + r = make_integer(0 - b->u.i); + free_value(a); + free_value(b); + return (r); + } + } else if (!to_integer(b)) { + if( !extra_error_message_supplied ) + ast_log(LOG_WARNING, "non-numeric argument\n"); + free_value(b); + return (a); + } + + r = make_integer (/*(quad_t)*/(a->u.i - b->u.i)); + if (chk_minus (a->u.i, b->u.i, r->u.i)) { + ast_log(LOG_WARNING, "overflow\n"); + } + free_value (a); + free_value (b); + return r; +} + +static struct val * +op_negate (struct val *a) +{ + struct val *r; + + if (!to_integer (a) ) { + free_value(a); + if( !extra_error_message_supplied ) + ast_log(LOG_WARNING, "non-numeric argument\n"); + return make_integer(0); + } + + r = make_integer (/*(quad_t)*/(- a->u.i)); + if (chk_minus (0, a->u.i, r->u.i)) { + ast_log(LOG_WARNING, "overflow\n"); + } + free_value (a); + return r; +} + +static struct val * +op_compl (struct val *a) +{ + int v1 = 1; + struct val *r; + + if( !a ) + { + v1 = 0; + } + else + { + switch( a->type ) + { + case AST_EXPR_integer: + if( a->u.i == 0 ) + v1 = 0; + break; + + case AST_EXPR_string: + if( a->u.s == 0 ) + v1 = 0; + else + { + if( a->u.s[0] == 0 ) + v1 = 0; + else if (strlen(a->u.s) == 1 && a->u.s[0] == '0' ) + v1 = 0; + } + break; + + case AST_EXPR_numeric_string: + if( a->u.s == 0 ) + v1 = 0; + else + { + if( a->u.s[0] == 0 ) + v1 = 0; + else if (strlen(a->u.s) == 1 && a->u.s[0] == '0' ) + v1 = 0; + } + break; + } + } + + r = make_integer (!v1); + free_value (a); + return r; +} + +static int +chk_times (quad_t a, quad_t b, quad_t r) +{ + /* special case: first operand is 0, no overflow possible */ + if (a == 0) + return 0; + /* cerify that result of division matches second operand */ + if (r / a != b) + return 1; + return 0; +} + +static struct val * +op_times (struct val *a, struct val *b) +{ + struct val *r; + + if (!to_integer (a) || !to_integer (b)) { + free_value(a); + free_value(b); + if( !extra_error_message_supplied ) + ast_log(LOG_WARNING, "non-numeric argument\n"); + return(make_integer(0)); + } + + r = make_integer (/*(quad_t)*/(a->u.i * b->u.i)); + if (chk_times (a->u.i, b->u.i, r->u.i)) { + ast_log(LOG_WARNING, "overflow\n"); + } + free_value (a); + free_value (b); + return (r); +} + +static int +chk_div (quad_t a, quad_t b) +{ + /* div by zero has been taken care of before */ + /* only QUAD_MIN / -1 causes overflow */ + if (a == QUAD_MIN && b == -1) + return 1; + /* everything else is OK */ + return 0; +} + +static struct val * +op_div (struct val *a, struct val *b) +{ + struct val *r; + + if (!to_integer (a)) { + free_value(a); + free_value(b); + if( !extra_error_message_supplied ) + ast_log(LOG_WARNING, "non-numeric argument\n"); + return make_integer(0); + } else if (!to_integer (b)) { + free_value(a); + free_value(b); + if( !extra_error_message_supplied ) + ast_log(LOG_WARNING, "non-numeric argument\n"); + return make_integer(INT_MAX); + } + + if (b->u.i == 0) { + ast_log(LOG_WARNING, "division by zero\n"); + free_value(a); + free_value(b); + return make_integer(INT_MAX); + } + + r = make_integer (/*(quad_t)*/(a->u.i / b->u.i)); + if (chk_div (a->u.i, b->u.i)) { + ast_log(LOG_WARNING, "overflow\n"); + } + free_value (a); + free_value (b); + return r; +} + +static struct val * +op_rem (struct val *a, struct val *b) +{ + struct val *r; + + if (!to_integer (a) || !to_integer (b)) { + if( !extra_error_message_supplied ) + ast_log(LOG_WARNING, "non-numeric argument\n"); + free_value(a); + free_value(b); + return make_integer(0); + } + + if (b->u.i == 0) { + ast_log(LOG_WARNING, "div by zero\n"); + free_value(a); + return(b); + } + + r = make_integer (/*(quad_t)*/(a->u.i % b->u.i)); + /* chk_rem necessary ??? */ + free_value (a); + free_value (b); + return r; +} + + +static struct val * +op_colon (struct val *a, struct val *b) +{ + regex_t rp; + regmatch_t rm[2]; + char errbuf[256]; + int eval; + struct val *v; + + /* coerce to both arguments to strings */ + to_string(a); + to_string(b); + /* strip double quotes from both -- they'll screw up the pattern, and the search string starting at ^ */ + strip_quotes(a); + strip_quotes(b); + /* compile regular expression */ + if ((eval = regcomp (&rp, b->u.s, REG_EXTENDED)) != 0) { + regerror (eval, &rp, errbuf, sizeof(errbuf)); + ast_log(LOG_WARNING,"regcomp() error : %s",errbuf); + free_value(a); + free_value(b); + return make_str(""); + } + + /* compare string against pattern */ + /* remember that patterns are anchored to the beginning of the line */ + if (regexec(&rp, a->u.s, (size_t)2, rm, 0) == 0 && rm[0].rm_so == 0) { + if (rm[1].rm_so >= 0) { + *(a->u.s + rm[1].rm_eo) = '\0'; + v = make_str (a->u.s + rm[1].rm_so); + + } else { + v = make_integer ((quad_t)(rm[0].rm_eo - rm[0].rm_so)); + } + } else { + if (rp.re_nsub == 0) { + v = make_integer ((quad_t)0); + } else { + v = make_str (""); + } + } + + /* free arguments and pattern buffer */ + free_value (a); + free_value (b); + regfree (&rp); + + return v; +} + + +static struct val * +op_eqtilde (struct val *a, struct val *b) +{ + regex_t rp; + regmatch_t rm[2]; + char errbuf[256]; + int eval; + struct val *v; + + /* coerce to both arguments to strings */ + to_string(a); + to_string(b); + /* strip double quotes from both -- they'll screw up the pattern, and the search string starting at ^ */ + strip_quotes(a); + strip_quotes(b); + /* compile regular expression */ + if ((eval = regcomp (&rp, b->u.s, REG_EXTENDED)) != 0) { + regerror (eval, &rp, errbuf, sizeof(errbuf)); + ast_log(LOG_WARNING,"regcomp() error : %s",errbuf); + free_value(a); + free_value(b); + return make_str(""); + } + + /* compare string against pattern */ + /* remember that patterns are anchored to the beginning of the line */ + if (regexec(&rp, a->u.s, (size_t)2, rm, 0) == 0 ) { + if (rm[1].rm_so >= 0) { + *(a->u.s + rm[1].rm_eo) = '\0'; + v = make_str (a->u.s + rm[1].rm_so); + + } else { + v = make_integer ((quad_t)(rm[0].rm_eo - rm[0].rm_so)); + } + } else { + if (rp.re_nsub == 0) { + v = make_integer ((quad_t)0); + } else { + v = make_str (""); + } + } + + /* free arguments and pattern buffer */ + free_value (a); + free_value (b); + regfree (&rp); + + return v; +} + |