diff options
Diffstat (limited to 'plugins/sudoers/getdate.c')
| -rw-r--r-- | plugins/sudoers/getdate.c | 2455 |
1 files changed, 2455 insertions, 0 deletions
diff --git a/plugins/sudoers/getdate.c b/plugins/sudoers/getdate.c new file mode 100644 index 0000000..23a424b --- /dev/null +++ b/plugins/sudoers/getdate.c @@ -0,0 +1,2455 @@ +/* + * This is an open source non-commercial project. Dear PVS-Studio, please check it. + * PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com + */ + +#include <config.h> +/* 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 + + + + +/* First part of user prologue. */ +#line 1 "getdate.y" + +/* +** Originally written by Steven M. Bellovin <smb@research.att.com> while +** at the University of North Carolina at Chapel Hill. Later tweaked by +** a couple of people on Usenet. Completely overhauled by Rich $alz +** <rsalz@bbn.com> and Jim Berets <jberets@bbn.com> in August, 1990; +** +** This grammar has 10 shift/reduce conflicts. +** +** This code is in the public domain and has no copyright. +*/ +/* SUPPRESS 287 on yaccpar_sccsid *//* Unused static variable */ +/* SUPPRESS 288 on yyerrlab *//* Label unused */ + +// PVS Studio suppression +// -V::560, 592, 1037, 1042 + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#if defined(HAVE_STDINT_H) +# include <stdint.h> +#elif defined(HAVE_INTTYPES_H) +# include <inttypes.h> +#endif +#include <time.h> +#include <limits.h> +#include <ctype.h> + +#include <sudo_compat.h> + + +#define EPOCH 1970 +#define HOUR(x) ((time_t)(x) * 60) +#define SECSPERDAY (24L * 60L * 60L) + + +/* +** An entry in the lexical lookup table. +*/ +typedef struct _TABLE { + const char *name; + int type; + time_t value; +} TABLE; + + +/* +** Daylight-savings mode: on, off, or not yet known. +*/ +typedef enum _DSTMODE { + DSTon, DSToff, DSTmaybe +} DSTMODE; + +/* +** Meridian: am, pm, or 24-hour style. +*/ +typedef enum _MERIDIAN { + MERam, MERpm, MER24 +} MERIDIAN; + + +/* +** Global variables. We could get rid of most of these by using a good +** union as the yacc stack. (This routine was originally written before +** yacc had the %union construct.) Maybe someday; right now we only use +** the %union very rarely. +*/ +static char *yyInput; +static DSTMODE yyDSTmode; +static time_t yyDayOrdinal; +static time_t yyDayNumber; +static int yyHaveDate; +static int yyHaveDay; +static int yyHaveRel; +static int yyHaveTime; +static int yyHaveZone; +static time_t yyTimezone; +static time_t yyDay; +static time_t yyHour; +static time_t yyMinutes; +static time_t yyMonth; +static time_t yySeconds; +static time_t yyYear; +static MERIDIAN yyMeridian; +static time_t yyRelMonth; +static time_t yyRelSeconds; + +static int yylex(void); + int yyparse(void); + void yyerror(const char *s); + + +#line 167 "getdate.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 yydebug; +#endif + +/* Token kinds. */ +#ifndef YYTOKENTYPE +# define YYTOKENTYPE + enum yytokentype + { + YYEMPTY = -2, + YYEOF = 0, /* "end of file" */ + YYerror = 256, /* error */ + YYUNDEF = 257, /* "invalid token" */ + tAGO = 258, /* tAGO */ + tID = 259, /* tID */ + tDST = 260, /* tDST */ + tDAY = 261, /* tDAY */ + tDAYZONE = 262, /* tDAYZONE */ + tMINUTE_UNIT = 263, /* tMINUTE_UNIT */ + tMONTH = 264, /* tMONTH */ + tMONTH_UNIT = 265, /* tMONTH_UNIT */ + tSEC_UNIT = 266, /* tSEC_UNIT */ + tSNUMBER = 267, /* tSNUMBER */ + tUNUMBER = 268, /* tUNUMBER */ + tZONE = 269, /* tZONE */ + tMERIDIAN = 270 /* tMERIDIAN */ + }; + typedef enum yytokentype yytoken_kind_t; +#endif +/* Token kinds. */ +#define YYEMPTY -2 +#define YYEOF 0 +#define YYerror 256 +#define YYUNDEF 257 +#define tAGO 258 +#define tID 259 +#define tDST 260 +#define tDAY 261 +#define tDAYZONE 262 +#define tMINUTE_UNIT 263 +#define tMONTH 264 +#define tMONTH_UNIT 265 +#define tSEC_UNIT 266 +#define tSNUMBER 267 +#define tUNUMBER 268 +#define tZONE 269 +#define tMERIDIAN 270 + +/* Value type. */ +#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED +union YYSTYPE +{ +#line 97 "getdate.y" + + time_t Number; + enum _MERIDIAN Meridian; + +#line 252 "getdate.c" + +}; +typedef union YYSTYPE YYSTYPE; +# define YYSTYPE_IS_TRIVIAL 1 +# define YYSTYPE_IS_DECLARED 1 +#endif + + +extern YYSTYPE yylval; + + +int yyparse (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_tAGO = 3, /* tAGO */ + YYSYMBOL_tID = 4, /* tID */ + YYSYMBOL_tDST = 5, /* tDST */ + YYSYMBOL_tDAY = 6, /* tDAY */ + YYSYMBOL_tDAYZONE = 7, /* tDAYZONE */ + YYSYMBOL_tMINUTE_UNIT = 8, /* tMINUTE_UNIT */ + YYSYMBOL_tMONTH = 9, /* tMONTH */ + YYSYMBOL_tMONTH_UNIT = 10, /* tMONTH_UNIT */ + YYSYMBOL_tSEC_UNIT = 11, /* tSEC_UNIT */ + YYSYMBOL_tSNUMBER = 12, /* tSNUMBER */ + YYSYMBOL_tUNUMBER = 13, /* tUNUMBER */ + YYSYMBOL_tZONE = 14, /* tZONE */ + YYSYMBOL_tMERIDIAN = 15, /* tMERIDIAN */ + YYSYMBOL_16_ = 16, /* ':' */ + YYSYMBOL_17_ = 17, /* ',' */ + YYSYMBOL_18_ = 18, /* '/' */ + YYSYMBOL_YYACCEPT = 19, /* $accept */ + YYSYMBOL_spec = 20, /* spec */ + YYSYMBOL_item = 21, /* item */ + YYSYMBOL_time = 22, /* time */ + YYSYMBOL_zone = 23, /* zone */ + YYSYMBOL_day = 24, /* day */ + YYSYMBOL_date = 25, /* date */ + YYSYMBOL_rel = 26, /* rel */ + YYSYMBOL_relunit = 27, /* relunit */ + YYSYMBOL_number = 28, /* number */ + YYSYMBOL_o_merid = 29 /* o_merid */ +}; +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 HAVE_STDINT_H +# 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_int8 yy_state_t; + +/* State numbers in computations. */ +typedef int yy_state_fast_t; + +#ifndef YY_ +# if defined YYENABLE_NLS && YYENABLE_NLS +# if ENABLE_NLS +# include <libintl.h> /* INFRINGES ON USER NAME SPACE */ +# define YY_(Msgid) dgettext ("bison-runtime", Msgid) +# endif +# endif +# ifndef YY_ +# define YY_(Msgid) Msgid +# endif +#endif + + +#ifndef YY_ATTRIBUTE_PURE +# if defined __GNUC__ && 2 < __GNUC__ + (96 <= __GNUC_MINOR__) +# define YY_ATTRIBUTE_PURE __attribute__ ((__pure__)) +# else +# define YY_ATTRIBUTE_PURE +# endif +#endif + +#ifndef YY_ATTRIBUTE_UNUSED +# if defined __GNUC__ && 2 < __GNUC__ + (7 <= __GNUC_MINOR__) +# define YY_ATTRIBUTE_UNUSED __attribute__ ((__unused__)) +# else +# define YY_ATTRIBUTE_UNUSED +# endif +#endif + +/* Suppress unused-variable warnings by "using" E. */ +#if ! defined lint || defined __GNUC__ +# define 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 41 + +/* YYNTOKENS -- Number of terminals. */ +#define YYNTOKENS 19 +/* YYNNTS -- Number of nonterminals. */ +#define YYNNTS 11 +/* YYNRULES -- Number of rules. */ +#define YYNRULES 42 +/* YYNSTATES -- Number of states. */ +#define YYNSTATES 52 + +/* YYMAXUTOK -- Last valid token kind. */ +#define YYMAXUTOK 270 + + +/* 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, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 17, 2, 2, 18, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 16, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 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 +}; + +#if YYDEBUG +/* YYRLINE[YYN] -- Source line where rule number YYN was defined. */ +static const yytype_int16 yyrline[] = +{ + 0, 111, 111, 112, 115, 118, 121, 124, 127, 130, + 133, 139, 145, 152, 158, 168, 172, 177, 183, 187, + 191, 197, 201, 212, 218, 224, 228, 233, 237, 244, + 248, 251, 254, 257, 260, 263, 266, 269, 272, 275, + 280, 307, 310 +}; +#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\"", "tAGO", "tID", "tDST", + "tDAY", "tDAYZONE", "tMINUTE_UNIT", "tMONTH", "tMONTH_UNIT", "tSEC_UNIT", + "tSNUMBER", "tUNUMBER", "tZONE", "tMERIDIAN", "':'", "','", "'/'", + "$accept", "spec", "item", "time", "zone", "day", "date", "rel", + "relunit", "number", "o_merid", YY_NULLPTR +}; + +static const char * +yysymbol_name (yysymbol_kind_t yysymbol) +{ + return yytname[yysymbol]; +} +#endif + +#define YYPACT_NINF (-12) + +#define yypact_value_is_default(Yyn) \ + ((Yyn) == YYPACT_NINF) + +#define YYTABLE_NINF (-1) + +#define yytable_value_is_error(Yyn) \ + 0 + +/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing + STATE-NUM. */ +static const yytype_int8 yypact[] = +{ + -12, 0, -12, -1, -12, -12, 10, -12, -12, 18, + 9, 17, -12, -12, -12, -12, -12, -12, 27, -12, + -12, 15, -12, -12, -12, -12, -12, -10, -12, -12, + 21, -12, 22, 23, -12, -12, 24, -12, -12, -12, + -11, 20, -12, -12, -12, 26, -12, 28, 19, -12, + -12, -12 +}; + +/* YYDEFACT[STATE-NUM] -- Default reduction number in state STATE-NUM. + Performed when YYTABLE does not specify something else to do. Zero + means the default is an error. */ +static const yytype_int8 yydefact[] = +{ + 2, 0, 1, 18, 16, 33, 0, 39, 36, 0, + 40, 15, 3, 4, 5, 7, 6, 8, 30, 9, + 19, 25, 32, 37, 34, 20, 31, 27, 38, 35, + 0, 10, 0, 0, 17, 29, 0, 24, 28, 23, + 41, 21, 26, 12, 42, 0, 11, 0, 41, 22, + 14, 13 +}; + +/* YYPGOTO[NTERM-NUM]. */ +static const yytype_int8 yypgoto[] = +{ + -12, -12, -12, -12, -12, -12, -12, -12, -12, -12, + -8 +}; + +/* YYDEFGOTO[NTERM-NUM]. */ +static const yytype_int8 yydefgoto[] = +{ + 0, 1, 12, 13, 14, 15, 16, 17, 18, 19, + 46 +}; + +/* YYTABLE[YYPACT[STATE-NUM]] -- What to do in state STATE-NUM. If + positive, shift that token. If negative, reduce the rule whose + number is the opposite. If YYTABLE_NINF, syntax error. */ +static const yytype_int8 yytable[] = +{ + 2, 43, 37, 38, 44, 45, 3, 4, 5, 6, + 7, 8, 9, 10, 11, 25, 20, 26, 27, 28, + 29, 30, 34, 21, 31, 32, 22, 33, 23, 24, + 35, 50, 36, 39, 44, 40, 41, 42, 47, 48, + 51, 49 +}; + +static const yytype_int8 yycheck[] = +{ + 0, 12, 12, 13, 15, 16, 6, 7, 8, 9, + 10, 11, 12, 13, 14, 6, 17, 8, 9, 10, + 11, 12, 5, 13, 15, 16, 8, 18, 10, 11, + 3, 12, 17, 12, 15, 13, 13, 13, 18, 13, + 48, 13 +}; + +/* YYSTOS[STATE-NUM] -- The symbol kind of the accessing symbol of + state STATE-NUM. */ +static const yytype_int8 yystos[] = +{ + 0, 20, 0, 6, 7, 8, 9, 10, 11, 12, + 13, 14, 21, 22, 23, 24, 25, 26, 27, 28, + 17, 13, 8, 10, 11, 6, 8, 9, 10, 11, + 12, 15, 16, 18, 5, 3, 17, 12, 13, 12, + 13, 13, 13, 12, 15, 16, 29, 18, 13, 13, + 12, 29 +}; + +/* YYR1[RULE-NUM] -- Symbol kind of the left-hand side of rule RULE-NUM. */ +static const yytype_int8 yyr1[] = +{ + 0, 19, 20, 20, 21, 21, 21, 21, 21, 21, + 22, 22, 22, 22, 22, 23, 23, 23, 24, 24, + 24, 25, 25, 25, 25, 25, 25, 25, 25, 26, + 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, + 28, 29, 29 +}; + +/* 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, 1, 1, 1, 1, 1, + 2, 4, 4, 6, 6, 1, 1, 2, 1, 2, + 2, 3, 5, 3, 3, 2, 4, 2, 3, 2, + 1, 2, 2, 1, 2, 2, 1, 2, 2, 1, + 1, 0, 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 4: /* item: time */ +#line 115 "getdate.y" + { + yyHaveTime++; + } +#line 1290 "getdate.c" + break; + + case 5: /* item: zone */ +#line 118 "getdate.y" + { + yyHaveZone++; + } +#line 1298 "getdate.c" + break; + + case 6: /* item: date */ +#line 121 "getdate.y" + { + yyHaveDate++; + } +#line 1306 "getdate.c" + break; + + case 7: /* item: day */ +#line 124 "getdate.y" + { + yyHaveDay++; + } +#line 1314 "getdate.c" + break; + + case 8: /* item: rel */ +#line 127 "getdate.y" + { + yyHaveRel++; + } +#line 1322 "getdate.c" + break; + + case 10: /* time: tUNUMBER tMERIDIAN */ +#line 133 "getdate.y" + { + yyHour = (yyvsp[-1].Number); + yyMinutes = 0; + yySeconds = 0; + yyMeridian = (yyvsp[0].Meridian); + } +#line 1333 "getdate.c" + break; + + case 11: /* time: tUNUMBER ':' tUNUMBER o_merid */ +#line 139 "getdate.y" + { + yyHour = (yyvsp[-3].Number); + yyMinutes = (yyvsp[-1].Number); + yySeconds = 0; + yyMeridian = (yyvsp[0].Meridian); + } +#line 1344 "getdate.c" + break; + + case 12: /* time: tUNUMBER ':' tUNUMBER tSNUMBER */ +#line 145 "getdate.y" + { + yyHour = (yyvsp[-3].Number); + yyMinutes = (yyvsp[-1].Number); + yyMeridian = MER24; + yyDSTmode = DSToff; + yyTimezone = - ((yyvsp[0].Number) % 100 + ((yyvsp[0].Number) / 100) * 60); + } +#line 1356 "getdate.c" + break; + + case 13: /* time: tUNUMBER ':' tUNUMBER ':' tUNUMBER o_merid */ +#line 152 "getdate.y" + { + yyHour = (yyvsp[-5].Number); + yyMinutes = (yyvsp[-3].Number); + yySeconds = (yyvsp[-1].Number); + yyMeridian = (yyvsp[0].Meridian); + } +#line 1367 "getdate.c" + break; + + case 14: /* time: tUNUMBER ':' tUNUMBER ':' tUNUMBER tSNUMBER */ +#line 158 "getdate.y" + { + yyHour = (yyvsp[-5].Number); + yyMinutes = (yyvsp[-3].Number); + yySeconds = (yyvsp[-1].Number); + yyMeridian = MER24; + yyDSTmode = DSToff; + yyTimezone = - ((yyvsp[0].Number) % 100 + ((yyvsp[0].Number) / 100) * 60); + } +#line 1380 "getdate.c" + break; + + case 15: /* zone: tZONE */ +#line 168 "getdate.y" + { + yyTimezone = (yyvsp[0].Number); + yyDSTmode = DSToff; + } +#line 1389 "getdate.c" + break; + + case 16: /* zone: tDAYZONE */ +#line 172 "getdate.y" + { + yyTimezone = (yyvsp[0].Number); + yyDSTmode = DSTon; + } +#line 1398 "getdate.c" + break; + + case 17: /* zone: tZONE tDST */ +#line 177 "getdate.y" + { + yyTimezone = (yyvsp[-1].Number); + yyDSTmode = DSTon; + } +#line 1407 "getdate.c" + break; + + case 18: /* day: tDAY */ +#line 183 "getdate.y" + { + yyDayOrdinal = 1; + yyDayNumber = (yyvsp[0].Number); + } +#line 1416 "getdate.c" + break; + + case 19: /* day: tDAY ',' */ +#line 187 "getdate.y" + { + yyDayOrdinal = 1; + yyDayNumber = (yyvsp[-1].Number); + } +#line 1425 "getdate.c" + break; + + case 20: /* day: tUNUMBER tDAY */ +#line 191 "getdate.y" + { + yyDayOrdinal = (yyvsp[-1].Number); + yyDayNumber = (yyvsp[0].Number); + } +#line 1434 "getdate.c" + break; + + case 21: /* date: tUNUMBER '/' tUNUMBER */ +#line 197 "getdate.y" + { + yyMonth = (yyvsp[-2].Number); + yyDay = (yyvsp[0].Number); + } +#line 1443 "getdate.c" + break; + + case 22: /* date: tUNUMBER '/' tUNUMBER '/' tUNUMBER */ +#line 201 "getdate.y" + { + if ((yyvsp[-4].Number) >= 100) { + yyYear = (yyvsp[-4].Number); + yyMonth = (yyvsp[-2].Number); + yyDay = (yyvsp[0].Number); + } else { + yyMonth = (yyvsp[-4].Number); + yyDay = (yyvsp[-2].Number); + yyYear = (yyvsp[0].Number); + } + } +#line 1459 "getdate.c" + break; + + case 23: /* date: tUNUMBER tSNUMBER tSNUMBER */ +#line 212 "getdate.y" + { + /* ISO 8601 format. yyyy-mm-dd. */ + yyYear = (yyvsp[-2].Number); + yyMonth = -(yyvsp[-1].Number); + yyDay = -(yyvsp[0].Number); + } +#line 1470 "getdate.c" + break; + + case 24: /* date: tUNUMBER tMONTH tSNUMBER */ +#line 218 "getdate.y" + { + /* e.g. 17-JUN-1992. */ + yyDay = (yyvsp[-2].Number); + yyMonth = (yyvsp[-1].Number); + yyYear = -(yyvsp[0].Number); + } +#line 1481 "getdate.c" + break; + + case 25: /* date: tMONTH tUNUMBER */ +#line 224 "getdate.y" + { + yyMonth = (yyvsp[-1].Number); + yyDay = (yyvsp[0].Number); + } +#line 1490 "getdate.c" + break; + + case 26: /* date: tMONTH tUNUMBER ',' tUNUMBER */ +#line 228 "getdate.y" + { + yyMonth = (yyvsp[-3].Number); + yyDay = (yyvsp[-2].Number); + yyYear = (yyvsp[0].Number); + } +#line 1500 "getdate.c" + break; + + case 27: /* date: tUNUMBER tMONTH */ +#line 233 "getdate.y" + { + yyMonth = (yyvsp[0].Number); + yyDay = (yyvsp[-1].Number); + } +#line 1509 "getdate.c" + break; + + case 28: /* date: tUNUMBER tMONTH tUNUMBER */ +#line 237 "getdate.y" + { + yyMonth = (yyvsp[-1].Number); + yyDay = (yyvsp[-2].Number); + yyYear = (yyvsp[0].Number); + } +#line 1519 "getdate.c" + break; + + case 29: /* rel: relunit tAGO */ +#line 244 "getdate.y" + { + yyRelSeconds = -yyRelSeconds; + yyRelMonth = -yyRelMonth; + } +#line 1528 "getdate.c" + break; + + case 31: /* relunit: tUNUMBER tMINUTE_UNIT */ +#line 251 "getdate.y" + { + yyRelSeconds += (yyvsp[-1].Number) * (yyvsp[0].Number) * 60L; + } +#line 1536 "getdate.c" + break; + + case 32: /* relunit: tSNUMBER tMINUTE_UNIT */ +#line 254 "getdate.y" + { + yyRelSeconds += (yyvsp[-1].Number) * (yyvsp[0].Number) * 60L; + } +#line 1544 "getdate.c" + break; + + case 33: /* relunit: tMINUTE_UNIT */ +#line 257 "getdate.y" + { + yyRelSeconds += (yyvsp[0].Number) * 60L; + } +#line 1552 "getdate.c" + break; + + case 34: /* relunit: tSNUMBER tSEC_UNIT */ +#line 260 "getdate.y" + { + yyRelSeconds += (yyvsp[-1].Number); + } +#line 1560 "getdate.c" + break; + + case 35: /* relunit: tUNUMBER tSEC_UNIT */ +#line 263 "getdate.y" + { + yyRelSeconds += (yyvsp[-1].Number); + } +#line 1568 "getdate.c" + break; + + case 36: /* relunit: tSEC_UNIT */ +#line 266 "getdate.y" + { + yyRelSeconds++; + } +#line 1576 "getdate.c" + break; + + case 37: /* relunit: tSNUMBER tMONTH_UNIT */ +#line 269 "getdate.y" + { + yyRelMonth += (yyvsp[-1].Number) * (yyvsp[0].Number); + } +#line 1584 "getdate.c" + break; + + case 38: /* relunit: tUNUMBER tMONTH_UNIT */ +#line 272 "getdate.y" + { + yyRelMonth += (yyvsp[-1].Number) * (yyvsp[0].Number); + } +#line 1592 "getdate.c" + break; + + case 39: /* relunit: tMONTH_UNIT */ +#line 275 "getdate.y" + { + yyRelMonth += (yyvsp[0].Number); + } +#line 1600 "getdate.c" + break; + + case 40: /* number: tUNUMBER */ +#line 280 "getdate.y" + { + if (yyHaveTime && yyHaveDate && !yyHaveRel) + yyYear = (yyvsp[0].Number); + else { + if((yyvsp[0].Number)>10000) { + yyHaveDate++; + yyDay= ((yyvsp[0].Number))%100; + yyMonth= ((yyvsp[0].Number)/100)%100; + yyYear = (yyvsp[0].Number)/10000; + } + else { + yyHaveTime++; + if ((yyvsp[0].Number) < 100) { + yyHour = (yyvsp[0].Number); + yyMinutes = 0; + } + else { + yyHour = (yyvsp[0].Number) / 100; + yyMinutes = (yyvsp[0].Number) % 100; + } + yySeconds = 0; + yyMeridian = MER24; + } + } + } +#line 1630 "getdate.c" + break; + + case 41: /* o_merid: %empty */ +#line 307 "getdate.y" + { + (yyval.Meridian) = MER24; + } +#line 1638 "getdate.c" + break; + + case 42: /* o_merid: tMERIDIAN */ +#line 310 "getdate.y" + { + (yyval.Meridian) = (yyvsp[0].Meridian); + } +#line 1646 "getdate.c" + break; + + +#line 1650 "getdate.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 315 "getdate.y" + + +/* Month and day table. */ +static TABLE const MonthDayTable[] = { + { "january", tMONTH, 1 }, + { "february", tMONTH, 2 }, + { "march", tMONTH, 3 }, + { "april", tMONTH, 4 }, + { "may", tMONTH, 5 }, + { "june", tMONTH, 6 }, + { "july", tMONTH, 7 }, + { "august", tMONTH, 8 }, + { "september", tMONTH, 9 }, + { "sept", tMONTH, 9 }, + { "october", tMONTH, 10 }, + { "november", tMONTH, 11 }, + { "december", tMONTH, 12 }, + { "sunday", tDAY, 0 }, + { "monday", tDAY, 1 }, + { "tuesday", tDAY, 2 }, + { "tues", tDAY, 2 }, + { "wednesday", tDAY, 3 }, + { "wednes", tDAY, 3 }, + { "thursday", tDAY, 4 }, + { "thur", tDAY, 4 }, + { "thurs", tDAY, 4 }, + { "friday", tDAY, 5 }, + { "saturday", tDAY, 6 }, + { NULL } +}; + +/* Time units table. */ +static TABLE const UnitsTable[] = { + { "year", tMONTH_UNIT, 12 }, + { "month", tMONTH_UNIT, 1 }, + { "fortnight", tMINUTE_UNIT, 14 * 24 * 60 }, + { "week", tMINUTE_UNIT, 7 * 24 * 60 }, + { "day", tMINUTE_UNIT, 1 * 24 * 60 }, + { "hour", tMINUTE_UNIT, 60 }, + { "minute", tMINUTE_UNIT, 1 }, + { "min", tMINUTE_UNIT, 1 }, + { "second", tSEC_UNIT, 1 }, + { "sec", tSEC_UNIT, 1 }, + { NULL } +}; + +/* Assorted relative-time words. */ +static TABLE const OtherTable[] = { + { "tomorrow", tMINUTE_UNIT, 1 * 24 * 60 }, + { "yesterday", tMINUTE_UNIT, -1 * 24 * 60 }, + { "today", tMINUTE_UNIT, 0 }, + { "now", tMINUTE_UNIT, 0 }, + { "last", tUNUMBER, -1 }, + { "this", tUNUMBER, 0 }, + { "next", tUNUMBER, 2 }, + { "first", tUNUMBER, 1 }, +/* { "second", tUNUMBER, 2 }, */ + { "third", tUNUMBER, 3 }, + { "fourth", tUNUMBER, 4 }, + { "fifth", tUNUMBER, 5 }, + { "sixth", tUNUMBER, 6 }, + { "seventh", tUNUMBER, 7 }, + { "eighth", tUNUMBER, 8 }, + { "ninth", tUNUMBER, 9 }, + { "tenth", tUNUMBER, 10 }, + { "eleventh", tUNUMBER, 11 }, + { "twelfth", tUNUMBER, 12 }, + { "ago", tAGO, 1 }, + { NULL } +}; + +/* The timezone table. */ +/* Some of these are commented out because a time_t can't store a float. */ +static TABLE const TimezoneTable[] = { + { "gmt", tZONE, HOUR( 0) }, /* Greenwich Mean */ + { "ut", tZONE, HOUR( 0) }, /* Universal (Coordinated) */ + { "utc", tZONE, HOUR( 0) }, + { "wet", tZONE, HOUR( 0) }, /* Western European */ + { "bst", tDAYZONE, HOUR( 0) }, /* British Summer */ + { "wat", tZONE, HOUR( 1) }, /* West Africa */ + { "at", tZONE, HOUR( 2) }, /* Azores */ +#if 0 + /* For completeness. BST is also British Summer, and GST is + * also Guam Standard. */ + { "bst", tZONE, HOUR( 3) }, /* Brazil Standard */ + { "gst", tZONE, HOUR( 3) }, /* Greenland Standard */ +#endif +#if 0 + { "nft", tZONE, HOUR(3.5) }, /* Newfoundland */ + { "nst", tZONE, HOUR(3.5) }, /* Newfoundland Standard */ + { "ndt", tDAYZONE, HOUR(3.5) }, /* Newfoundland Daylight */ +#endif + { "ast", tZONE, HOUR( 4) }, /* Atlantic Standard */ + { "adt", tDAYZONE, HOUR( 4) }, /* Atlantic Daylight */ + { "est", tZONE, HOUR( 5) }, /* Eastern Standard */ + { "edt", tDAYZONE, HOUR( 5) }, /* Eastern Daylight */ + { "cst", tZONE, HOUR( 6) }, /* Central Standard */ + { "cdt", tDAYZONE, HOUR( 6) }, /* Central Daylight */ + { "mst", tZONE, HOUR( 7) }, /* Mountain Standard */ + { "mdt", tDAYZONE, HOUR( 7) }, /* Mountain Daylight */ + { "pst", tZONE, HOUR( 8) }, /* Pacific Standard */ + { "pdt", tDAYZONE, HOUR( 8) }, /* Pacific Daylight */ + { "yst", tZONE, HOUR( 9) }, /* Yukon Standard */ + { "ydt", tDAYZONE, HOUR( 9) }, /* Yukon Daylight */ + { "hst", tZONE, HOUR(10) }, /* Hawaii Standard */ + { "hdt", tDAYZONE, HOUR(10) }, /* Hawaii Daylight */ + { "cat", tZONE, HOUR(10) }, /* Central Alaska */ + { "ahst", tZONE, HOUR(10) }, /* Alaska-Hawaii Standard */ + { "nt", tZONE, HOUR(11) }, /* Nome */ + { "idlw", tZONE, HOUR(12) }, /* International Date Line West */ + { "cet", tZONE, -HOUR(1) }, /* Central European */ + { "met", tZONE, -HOUR(1) }, /* Middle European */ + { "mewt", tZONE, -HOUR(1) }, /* Middle European Winter */ + { "mest", tDAYZONE, -HOUR(1) }, /* Middle European Summer */ + { "swt", tZONE, -HOUR(1) }, /* Swedish Winter */ + { "sst", tDAYZONE, -HOUR(1) }, /* Swedish Summer */ + { "fwt", tZONE, -HOUR(1) }, /* French Winter */ + { "fst", tDAYZONE, -HOUR(1) }, /* French Summer */ + { "eet", tZONE, -HOUR(2) }, /* Eastern Europe, USSR Zone 1 */ + { "bt", tZONE, -HOUR(3) }, /* Baghdad, USSR Zone 2 */ +#if 0 + { "it", tZONE, -HOUR(3.5) },/* Iran */ +#endif + { "zp4", tZONE, -HOUR(4) }, /* USSR Zone 3 */ + { "zp5", tZONE, -HOUR(5) }, /* USSR Zone 4 */ +#if 0 + { "ist", tZONE, -HOUR(5.5) },/* Indian Standard */ +#endif + { "zp6", tZONE, -HOUR(6) }, /* USSR Zone 5 */ +#if 0 + /* For completeness. NST is also Newfoundland Standard, and SST is + * also Swedish Summer. */ + { "nst", tZONE, -HOUR(6.5) },/* North Sumatra */ + { "sst", tZONE, -HOUR(7) }, /* South Sumatra, USSR Zone 6 */ +#endif /* 0 */ + { "wast", tZONE, -HOUR(7) }, /* West Australian Standard */ + { "wadt", tDAYZONE, -HOUR(7) }, /* West Australian Daylight */ +#if 0 + { "jt", tZONE, -HOUR(7.5) },/* Java (3pm in Cronusland!) */ +#endif + { "cct", tZONE, -HOUR(8) }, /* China Coast, USSR Zone 7 */ + { "jst", tZONE, -HOUR(9) }, /* Japan Standard, USSR Zone 8 */ +#if 0 + { "cast", tZONE, -HOUR(9.5) },/* Central Australian Standard */ + { "cadt", tDAYZONE, -HOUR(9.5) },/* Central Australian Daylight */ +#endif + { "east", tZONE, -HOUR(10) }, /* Eastern Australian Standard */ + { "eadt", tDAYZONE, -HOUR(10) }, /* Eastern Australian Daylight */ + { "gst", tZONE, -HOUR(10) }, /* Guam Standard, USSR Zone 9 */ + { "nzt", tZONE, -HOUR(12) }, /* New Zealand */ + { "nzst", tZONE, -HOUR(12) }, /* New Zealand Standard */ + { "nzdt", tDAYZONE, -HOUR(12) }, /* New Zealand Daylight */ + { "idle", tZONE, -HOUR(12) }, /* International Date Line East */ + { NULL } +}; + +/* Military timezone table. */ +static TABLE const MilitaryTable[] = { + { "a", tZONE, HOUR( 1) }, + { "b", tZONE, HOUR( 2) }, + { "c", tZONE, HOUR( 3) }, + { "d", tZONE, HOUR( 4) }, + { "e", tZONE, HOUR( 5) }, + { "f", tZONE, HOUR( 6) }, + { "g", tZONE, HOUR( 7) }, + { "h", tZONE, HOUR( 8) }, + { "i", tZONE, HOUR( 9) }, + { "k", tZONE, HOUR( 10) }, + { "l", tZONE, HOUR( 11) }, + { "m", tZONE, HOUR( 12) }, + { "n", tZONE, HOUR(- 1) }, + { "o", tZONE, HOUR(- 2) }, + { "p", tZONE, HOUR(- 3) }, + { "q", tZONE, HOUR(- 4) }, + { "r", tZONE, HOUR(- 5) }, + { "s", tZONE, HOUR(- 6) }, + { "t", tZONE, HOUR(- 7) }, + { "u", tZONE, HOUR(- 8) }, + { "v", tZONE, HOUR(- 9) }, + { "w", tZONE, HOUR(-10) }, + { "x", tZONE, HOUR(-11) }, + { "y", tZONE, HOUR(-12) }, + { "z", tZONE, HOUR( 0) }, + { NULL } +}; + + + + +/* ARGSUSED */ +void +yyerror(const char *s) +{ + return; +} + + +static time_t +ToSeconds(time_t Hours, time_t Minutes, time_t Seconds, MERIDIAN Meridian) +{ + if (Minutes < 0 || Minutes > 59 || Seconds < 0 || Seconds > 59) + return -1; + switch (Meridian) { + case MER24: + if (Hours < 0 || Hours > 23) + return -1; + return (Hours * 60L + Minutes) * 60L + Seconds; + case MERam: + if (Hours < 1 || Hours > 12) + return -1; + if (Hours == 12) + Hours = 0; + return (Hours * 60L + Minutes) * 60L + Seconds; + case MERpm: + if (Hours < 1 || Hours > 12) + return -1; + if (Hours == 12) + Hours = 0; + return ((Hours + 12) * 60L + Minutes) * 60L + Seconds; + default: + abort (); + } + /* NOTREACHED */ +} + + +/* Year is either + * A negative number, which means to use its absolute value (why?) + * A number from 0 to 99, which means a year from 1900 to 1999, or + * The actual year (>=100). */ +static time_t +Convert(time_t Month, time_t Day, time_t Year, time_t Hours, time_t Minutes, + time_t Seconds, MERIDIAN Meridian, DSTMODE DSTmode) +{ + static int DaysInMonth[12] = { + 31, 0, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 + }; + struct tm tm; + time_t tod; + time_t Julian; + int i; + + if (Year < 0) + Year = -Year; + if (Year < 69) + Year += 2000; + else if (Year < 100) { + Year += 1900; + if (Year < EPOCH) + Year += 100; + } + DaysInMonth[1] = Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0) + ? 29 : 28; + /* 32-bit time_t cannot represent years past 2038 */ + if (Year < EPOCH || (sizeof(time_t) == sizeof(int) && Year > 2038) + || Month < 1 || Month > 12 + /* Lint fluff: "conversion from long may lose accuracy" */ + || Day < 1 || Day > DaysInMonth[--Month]) + return -1; + + for (Julian = Day - 1, i = 0; i < Month; i++) + Julian += DaysInMonth[i]; + for (i = EPOCH; i < Year; i++) + Julian += 365 + (i % 4 == 0); + Julian *= SECSPERDAY; + Julian += yyTimezone * 60L; + if ((tod = ToSeconds(Hours, Minutes, Seconds, Meridian)) < 0) + return -1; + Julian += tod; + if (DSTmode == DSTon + || (DSTmode == DSTmaybe && localtime_r(&Julian, &tm) && tm.tm_isdst)) + Julian -= 60 * 60; + return Julian; +} + + +static time_t +DSTcorrect(time_t Start, time_t Future) +{ + struct tm start_tm; + struct tm future_tm; + time_t StartDay; + time_t FutureDay; + + if (!localtime_r(&Start, &start_tm) || !localtime_r(&Future, &future_tm)) + return -1; + + StartDay = (start_tm.tm_hour + 1) % 24; + FutureDay = (future_tm.tm_hour + 1) % 24; + return (Future - Start) + (StartDay - FutureDay) * 60L * 60L; +} + + +static time_t +RelativeDate(time_t Start, time_t DayOrdinal, time_t DayNumber) +{ + struct tm tm; + time_t now; + + now = Start; + if (!localtime_r(&now, &tm)) + return -1; + now += SECSPERDAY * ((DayNumber - tm.tm_wday + 7) % 7); + now += 7 * SECSPERDAY * (DayOrdinal <= 0 ? DayOrdinal : DayOrdinal - 1); + return DSTcorrect(Start, now); +} + + +static time_t +RelativeMonth(time_t Start, time_t RelMonth) +{ + struct tm tm; + time_t Month; + time_t Year; + + if (RelMonth == 0) + return 0; + if (!localtime_r(&Start, &tm)) + return -1; + Month = 12 * (tm.tm_year + 1900) + tm.tm_mon + RelMonth; + Year = Month / 12; + Month = Month % 12 + 1; + return DSTcorrect(Start, + Convert(Month, (time_t)tm.tm_mday, Year, + (time_t)tm.tm_hour, (time_t)tm.tm_min, (time_t)tm.tm_sec, + MER24, DSTmaybe)); +} + + +static int +LookupWord(char *buff) +{ + char *p; + char *q; + const TABLE *tp; + int i; + int abbrev; + int bufflen; + + /* Make it lowercase. */ + for (p = buff; *p; p++) { + if (isupper((unsigned char)*p)) + *p = (char)tolower((unsigned char)*p); + } + if ((bufflen = (int)(p - buff)) == 0) + return '\0'; + + if (strcmp(buff, "am") == 0 || strcmp(buff, "a.m.") == 0) { + yylval.Meridian = MERam; + return tMERIDIAN; + } + if (strcmp(buff, "pm") == 0 || strcmp(buff, "p.m.") == 0) { + yylval.Meridian = MERpm; + return tMERIDIAN; + } + + /* See if we have an abbreviation for a month. */ + if (bufflen == 3) + abbrev = 1; + else if (bufflen == 4 && buff[3] == '.') { + abbrev = 1; + buff[bufflen = 3] = '\0'; + } + else + abbrev = 0; + + for (tp = MonthDayTable; tp->name; tp++) { + if (abbrev) { + if (strncmp(buff, tp->name, 3) == 0) { + yylval.Number = tp->value; + return tp->type; + } + } + else if (strcmp(buff, tp->name) == 0) { + yylval.Number = tp->value; + return tp->type; + } + } + + for (tp = TimezoneTable; tp->name; tp++) + if (strcmp(buff, tp->name) == 0) { + yylval.Number = tp->value; + return tp->type; + } + + if (strcmp(buff, "dst") == 0) + return tDST; + + for (tp = UnitsTable; tp->name; tp++) + if (strcmp(buff, tp->name) == 0) { + yylval.Number = tp->value; + return tp->type; + } + + /* Strip off any plural and try the units table again. */ + i = bufflen - 1; + if (buff[i] == 's') { + buff[i] = '\0'; + for (tp = UnitsTable; tp->name; tp++) + if (strcmp(buff, tp->name) == 0) { + yylval.Number = tp->value; + return tp->type; + } + buff[i] = 's'; /* Put back for "this" in OtherTable. */ + } + + for (tp = OtherTable; tp->name; tp++) + if (strcmp(buff, tp->name) == 0) { + yylval.Number = tp->value; + return tp->type; + } + + /* Military timezones. */ + if (buff[1] == '\0' && isalpha((unsigned char)*buff)) { + for (tp = MilitaryTable; tp->name; tp++) + if (strcmp(buff, tp->name) == 0) { + yylval.Number = tp->value; + return tp->type; + } + } + + /* Drop out any periods and try the timezone table again. */ + for (i = 0, p = q = buff; *q; q++) + if (*q != '.') + *p++ = *q; + else + i++; + *p = '\0'; + if (i) + for (tp = TimezoneTable; tp->name; tp++) + if (strcmp(buff, tp->name) == 0) { + yylval.Number = tp->value; + return tp->type; + } + + return tID; +} + + +static int +yylex(void) +{ + char c; + char *p; + char buff[20]; + int Count; + int sign; + + for ( ; ; ) { + while (isspace((unsigned char)*yyInput)) + yyInput++; + + if (isdigit((unsigned char)(c = *yyInput)) || c == '-' || c == '+') { + if (c == '-' || c == '+') { + sign = c == '-' ? -1 : 1; + if (!isdigit((unsigned char)*++yyInput)) + /* skip the '-' sign */ + continue; + } + else + sign = 0; + for (yylval.Number = 0; isdigit((unsigned char)(c = *yyInput++)); ) + yylval.Number = 10 * yylval.Number + c - '0'; + yyInput--; + if (sign < 0) + yylval.Number = -yylval.Number; + return sign ? tSNUMBER : tUNUMBER; + } + if (isalpha((unsigned char)c)) { + for (p = buff; isalpha((unsigned char)(c = *yyInput++)) || c == '.'; ) + if (p < &buff[sizeof buff - 1]) + *p++ = c; + *p = '\0'; + yyInput--; + return LookupWord(buff); + } + if (c != '(') + return *yyInput++; + Count = 0; + do { + c = *yyInput++; + if (c == '\0') + return c; + if (c == '(') + Count++; + else if (c == ')') + Count--; + } while (Count > 0); + } +} + +#define TM_YEAR_ORIGIN 1900 + +/* Yield A - B, measured in seconds. */ +static long +difftm(struct tm *a, struct tm *b) +{ + int ay = a->tm_year + (TM_YEAR_ORIGIN - 1); + int by = b->tm_year + (TM_YEAR_ORIGIN - 1); + long days = ( + /* difference in day of year */ + a->tm_yday - b->tm_yday + /* + intervening leap days */ + + ((ay >> 2) - (by >> 2)) + - (ay/100 - by/100) + + ((ay/100 >> 2) - (by/100 >> 2)) + /* + difference in years * 365 */ + + (long)(ay-by) * 365 + ); + return (60*(60*(24*days + (a->tm_hour - b->tm_hour)) + + (a->tm_min - b->tm_min)) + + (a->tm_sec - b->tm_sec)); +} + +time_t get_date(char *p); + +time_t +get_date(char *p) +{ + struct tm tm, gmt; + time_t Start; + time_t tod; + time_t now; + time_t tz; + + yyInput = p; + (void)time (&now); + + if (gmtime_r (&now, &gmt) == NULL) + return -1; + + if (localtime_r (&now, &tm) == NULL) + return -1; + + tz = difftm (&gmt, &tm) / 60; + if (tm.tm_isdst) + tz += 60; + + yyYear = tm.tm_year + 1900; + yyMonth = tm.tm_mon + 1; + yyDay = tm.tm_mday; + yyTimezone = tz; + yyDSTmode = DSTmaybe; + yyHour = 0; + yyMinutes = 0; + yySeconds = 0; + yyMeridian = MER24; + yyRelSeconds = 0; + yyRelMonth = 0; + yyHaveDate = 0; + yyHaveDay = 0; + yyHaveRel = 0; + yyHaveTime = 0; + yyHaveZone = 0; + + if (yyparse() + || yyHaveTime > 1 || yyHaveZone > 1 || yyHaveDate > 1 || yyHaveDay > 1) + return -1; + + if (yyHaveDate || yyHaveTime || yyHaveDay) { + Start = Convert(yyMonth, yyDay, yyYear, yyHour, yyMinutes, yySeconds, + yyMeridian, yyDSTmode); + if (Start < 0) + return -1; + } + else { + Start = now; + if (!yyHaveRel) + Start -= ((tm.tm_hour * 60L + tm.tm_min) * 60L) + tm.tm_sec; + } + + Start += yyRelSeconds; + Start += RelativeMonth(Start, yyRelMonth); + + if (yyHaveDay && !yyHaveDate) { + tod = RelativeDate(Start, yyDayOrdinal, yyDayNumber); + Start += tod; + } + + /* Have to do *something* with a legitimate -1 so it's distinguishable + * from the error return value. (Alternately could set errno on error.) */ + return Start == -1 ? 0 : Start; +} + + +#ifdef TEST + +/* ARGSUSED */ +int +main(int argc, char *argv[]) +{ + char buff[128]; + time_t d; + + (void)fputs("Enter date, or blank line to exit.\n\t> ", stdout); + (void)fflush(stdout); + while (fgets(buff, sizeof(buff), stdin) && buff[0]) { + d = get_date(buff); + if (d == -1) + (void)fputs("Bad format - couldn't convert.\n\t> ", stdout); + else + (void)printf("%s\t> ", ctime(&d)); + (void)fflush(stdout); + } + return 0; +} +#endif /* TEST */ |