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Diffstat (limited to 'lib/getdate.c')
| -rw-r--r-- | lib/getdate.c | 3359 |
1 files changed, 3359 insertions, 0 deletions
diff --git a/lib/getdate.c b/lib/getdate.c new file mode 100644 index 0000000..5b07884 --- /dev/null +++ b/lib/getdate.c @@ -0,0 +1,3359 @@ +/* A Bison parser, made by GNU Bison 2.3a. */ + +/* Skeleton implementation for Bison's Yacc-like parsers in C + + Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006 + Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. */ + +/* As a special exception, you may create a larger work that contains + part or all of the Bison parser skeleton and distribute that work + under terms of your choice, so long as that work isn't itself a + parser generator using the skeleton or a modified version thereof + as a parser skeleton. Alternatively, if you modify or redistribute + the parser skeleton itself, you may (at your option) remove this + special exception, which will cause the skeleton and the resulting + Bison output files to be licensed under the GNU General Public + License without this special exception. + + This special exception was added by the Free Software Foundation in + version 2.2 of Bison. */ + +/* C LALR(1) parser skeleton written by Richard Stallman, by + simplifying the original so-called "semantic" parser. */ + +/* All symbols defined below should begin with yy or YY, to avoid + infringing on user name space. This should be done even for local + variables, as they might otherwise be expanded by user macros. + There are some unavoidable exceptions within include files to + define necessary library symbols; they are noted "INFRINGES ON + USER NAME SPACE" below. */ + +/* Identify Bison output. */ +#define YYBISON 1 + +/* Bison version. */ +#define YYBISON_VERSION "2.3a" + +/* Skeleton name. */ +#define YYSKELETON_NAME "yacc.c" + +/* Pure parsers. */ +#define YYPURE 1 + +/* Using locations. */ +#define YYLSP_NEEDED 0 + + + +/* Copy the first part of user declarations. */ +/* Line 164 of yacc.c. */ +#line 1 "getdate.y" + +/* Parse a string into an internal time stamp. + + Copyright (C) 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2007 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. */ + +/* 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. + + Modified by Paul Eggert <eggert@twinsun.com> in August 1999 to do + the right thing about local DST. Also modified by Paul Eggert + <eggert@cs.ucla.edu> in February 2004 to support + nanosecond-resolution time stamps, and in October 2004 to support + TZ strings in dates. */ + +/* FIXME: Check for arithmetic overflow in all cases, not just + some of them. */ + +#include <config.h> + +#include "getdate.h" +#include "timespec.h" + +/* There's no need to extend the stack, so there's no need to involve + alloca. */ +#define YYSTACK_USE_ALLOCA 0 + +/* Tell Bison how much stack space is needed. 20 should be plenty for + this grammar, which is not right recursive. Beware setting it too + high, since that might cause problems on machines whose + implementations have lame stack-overflow checking. */ +#define YYMAXDEPTH 20 +#define YYINITDEPTH YYMAXDEPTH + +/* Since the code of getdate.y is not included in the Emacs executable + itself, there is no need to #define static in this file. Even if + the code were included in the Emacs executable, it probably + wouldn't do any harm to #undef it here; this will only cause + problems if we try to write to a static variable, which I don't + think this code needs to do. */ +#ifdef emacs +# undef static +#endif + +#include <ctype.h> +#include <limits.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "setenv.h" +#include "xalloc.h" + + +/* ISDIGIT differs from isdigit, as follows: + - Its arg may be any int or unsigned int; it need not be an unsigned char + or EOF. + - It's typically faster. + POSIX says that only '0' through '9' are digits. Prefer ISDIGIT to + isdigit unless it's important to use the locale's definition + of `digit' even when the host does not conform to POSIX. */ +#define ISDIGIT(c) ((unsigned int) (c) - '0' <= 9) + +#ifndef __attribute__ +# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__ +# define __attribute__(x) +# endif +#endif + +#ifndef ATTRIBUTE_UNUSED +# define ATTRIBUTE_UNUSED __attribute__ ((__unused__)) +#endif + +/* Shift A right by B bits portably, by dividing A by 2**B and + truncating towards minus infinity. A and B should be free of side + effects, and B should be in the range 0 <= B <= INT_BITS - 2, where + INT_BITS is the number of useful bits in an int. GNU code can + assume that INT_BITS is at least 32. + + ISO C99 says that A >> B is implementation-defined if A < 0. Some + implementations (e.g., UNICOS 9.0 on a Cray Y-MP EL) don't shift + right in the usual way when A < 0, so SHR falls back on division if + ordinary A >> B doesn't seem to be the usual signed shift. */ +#define SHR(a, b) \ + (-1 >> 1 == -1 \ + ? (a) >> (b) \ + : (a) / (1 << (b)) - ((a) % (1 << (b)) < 0)) + +#define EPOCH_YEAR 1970 +#define TM_YEAR_BASE 1900 + +#define HOUR(x) ((x) * 60) + +/* An integer value, and the number of digits in its textual + representation. */ +typedef struct +{ + bool negative; + long int value; + size_t digits; +} textint; + +/* An entry in the lexical lookup table. */ +typedef struct +{ + char const *name; + int type; + int value; +} table; + +/* Meridian: am, pm, or 24-hour style. */ +enum { MERam, MERpm, MER24 }; + +enum { BILLION = 1000000000, LOG10_BILLION = 9 }; + +/* Relative times. */ +typedef struct +{ + /* Relative year, month, day, hour, minutes, seconds, and nanoseconds. */ + long int year; + long int month; + long int day; + long int hour; + long int minutes; + long int seconds; + long int ns; +} relative_time; + +#if HAVE_COMPOUND_LITERALS +# define RELATIVE_TIME_0 ((relative_time) { 0, 0, 0, 0, 0, 0, 0 }) +#else +static relative_time const RELATIVE_TIME_0; +#endif + +/* Information passed to and from the parser. */ +typedef struct +{ + /* The input string remaining to be parsed. */ + const char *input; + + /* N, if this is the Nth Tuesday. */ + long int day_ordinal; + + /* Day of week; Sunday is 0. */ + int day_number; + + /* tm_isdst flag for the local zone. */ + int local_isdst; + + /* Time zone, in minutes east of UTC. */ + long int time_zone; + + /* Style used for time. */ + int meridian; + + /* Gregorian year, month, day, hour, minutes, seconds, and nanoseconds. */ + textint year; + long int month; + long int day; + long int hour; + long int minutes; + struct timespec seconds; /* includes nanoseconds */ + + /* Relative year, month, day, hour, minutes, seconds, and nanoseconds. */ + relative_time rel; + + /* Presence or counts of nonterminals of various flavors parsed so far. */ + bool timespec_seen; + bool rels_seen; + size_t dates_seen; + size_t days_seen; + size_t local_zones_seen; + size_t dsts_seen; + size_t times_seen; + size_t zones_seen; + + /* Table of local time zone abbrevations, terminated by a null entry. */ + table local_time_zone_table[3]; +} parser_control; + +union YYSTYPE; +static int yylex (union YYSTYPE *, parser_control *); +static int yyerror (parser_control const *, char const *); +static long int time_zone_hhmm (textint, long int); + + + +/* 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 + + +/* Tokens. */ +#ifndef YYTOKENTYPE +# define YYTOKENTYPE + /* Put the tokens into the symbol table, so that GDB and other debuggers + know about them. */ + enum yytokentype { + tAGO = 258, + tDST = 259, + tYEAR_UNIT = 260, + tMONTH_UNIT = 261, + tHOUR_UNIT = 262, + tMINUTE_UNIT = 263, + tSEC_UNIT = 264, + tDAY_UNIT = 265, + tDAY = 266, + tDAYZONE = 267, + tLOCAL_ZONE = 268, + tMERIDIAN = 269, + tMONTH = 270, + tORDINAL = 271, + tZONE = 272, + tSNUMBER = 273, + tUNUMBER = 274, + tSDECIMAL_NUMBER = 275, + tUDECIMAL_NUMBER = 276 + }; +#endif +/* Tokens. */ +#define tAGO 258 +#define tDST 259 +#define tYEAR_UNIT 260 +#define tMONTH_UNIT 261 +#define tHOUR_UNIT 262 +#define tMINUTE_UNIT 263 +#define tSEC_UNIT 264 +#define tDAY_UNIT 265 +#define tDAY 266 +#define tDAYZONE 267 +#define tLOCAL_ZONE 268 +#define tMERIDIAN 269 +#define tMONTH 270 +#define tORDINAL 271 +#define tZONE 272 +#define tSNUMBER 273 +#define tUNUMBER 274 +#define tSDECIMAL_NUMBER 275 +#define tUDECIMAL_NUMBER 276 + + + + +#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED +typedef union YYSTYPE +{/* Line 191 of yacc.c. */ +#line 214 "getdate.y" + + long int intval; + textint textintval; + struct timespec timespec; + relative_time rel; +} +/* Line 191 of yacc.c. */ +#line 351 "getdate.c" + YYSTYPE; +# define YYSTYPE_IS_TRIVIAL 1 +# define yystype YYSTYPE /* obsolescent; will be withdrawn */ +# define YYSTYPE_IS_DECLARED 1 +#endif + + + + +/* Copy the second part of user declarations. */ + +/* Line 221 of yacc.c. */ +#line 364 "getdate.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 yyi) +#else +static int +YYID (yyi) + int yyi; +#endif +{ + return yyi; +} +#endif + +#if ! defined yyoverflow || YYERROR_VERBOSE + +/* The parser invokes alloca or malloc; define the necessary symbols. */ + +# ifdef YYSTACK_USE_ALLOCA +# if YYSTACK_USE_ALLOCA +# ifdef __GNUC__ +# define YYSTACK_ALLOC __builtin_alloca +# elif defined __BUILTIN_VA_ARG_INCR +# include <alloca.h> /* INFRINGES ON USER NAME SPACE */ +# elif defined _AIX +# define YYSTACK_ALLOC __alloca +# elif defined _MSC_VER +# include <malloc.h> /* INFRINGES ON USER NAME SPACE */ +# define alloca _alloca +# else +# define YYSTACK_ALLOC alloca +# if ! defined _ALLOCA_H && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */ +# ifndef _STDLIB_H +# define _STDLIB_H 1 +# endif +# endif +# endif +# endif +# endif + +# ifdef YYSTACK_ALLOC + /* Pacify GCC's `empty if-body' warning. */ +# define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0)) +# ifndef YYSTACK_ALLOC_MAXIMUM + /* The OS might guarantee only one guard page at the bottom of the stack, + and a page size can be as small as 4096 bytes. So we cannot safely + invoke alloca (N) if N exceeds 4096. Use a slightly smaller number + to allow for a few compiler-allocated temporary stack slots. */ +# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */ +# endif +# else +# define YYSTACK_ALLOC YYMALLOC +# define YYSTACK_FREE YYFREE +# ifndef YYSTACK_ALLOC_MAXIMUM +# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM +# endif +# if (defined __cplusplus && ! defined _STDLIB_H \ + && ! ((defined YYMALLOC || defined malloc) \ + && (defined YYFREE || defined free))) +# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */ +# ifndef _STDLIB_H +# define _STDLIB_H 1 +# endif +# endif +# ifndef YYMALLOC +# define YYMALLOC malloc +# if ! defined malloc && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */ +# endif +# endif +# ifndef YYFREE +# define YYFREE free +# if ! defined free && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +void free (void *); /* INFRINGES ON USER NAME SPACE */ +# endif +# endif +# endif +#endif /* ! defined yyoverflow || YYERROR_VERBOSE */ + + +#if (! defined yyoverflow \ + && (! defined __cplusplus \ + || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL))) + +/* A type that is properly aligned for any stack member. */ +union yyalloc +{ + yytype_int16 yyss; + YYSTYPE yyvs; + }; + +/* 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)) \ + + 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 12 +/* YYLAST -- Last index in YYTABLE. */ +#define YYLAST 91 + +/* YYNTOKENS -- Number of terminals. */ +#define YYNTOKENS 26 +/* YYNNTS -- Number of nonterminals. */ +#define YYNNTS 19 +/* YYNRULES -- Number of rules. */ +#define YYNRULES 78 +/* YYNRULES -- Number of states. */ +#define YYNSTATES 96 + +/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */ +#define YYUNDEFTOK 2 +#define YYMAXUTOK 276 + +#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, 24, 2, 2, 25, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 23, 2, + 2, 2, 2, 2, 22, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 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 +}; + +#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, 7, 10, 11, 14, 16, 18, + 20, 22, 24, 26, 28, 31, 36, 42, 49, 57, + 59, 62, 64, 67, 71, 73, 76, 78, 81, 84, + 87, 91, 97, 101, 105, 109, 112, 117, 120, 124, + 127, 129, 132, 135, 137, 140, 143, 145, 148, 151, + 153, 156, 159, 161, 164, 167, 169, 172, 175, 178, + 181, 183, 185, 188, 191, 194, 197, 200, 203, 205, + 207, 209, 211, 213, 215, 217, 218, 221, 222 +}; + +/* YYRHS -- A `-1'-separated list of the rules' RHS. */ +static const yytype_int8 yyrhs[] = +{ + 27, 0, -1, 28, -1, 29, -1, 22, 39, -1, + -1, 29, 30, -1, 31, -1, 32, -1, 33, -1, + 35, -1, 34, -1, 36, -1, 42, -1, 19, 14, + -1, 19, 23, 19, 44, -1, 19, 23, 19, 18, + 43, -1, 19, 23, 19, 23, 41, 44, -1, 19, + 23, 19, 23, 41, 18, 43, -1, 13, -1, 13, + 4, -1, 17, -1, 17, 38, -1, 17, 18, 43, + -1, 12, -1, 17, 4, -1, 11, -1, 11, 24, + -1, 16, 11, -1, 19, 11, -1, 19, 25, 19, + -1, 19, 25, 19, 25, 19, -1, 19, 18, 18, + -1, 19, 15, 18, -1, 15, 18, 18, -1, 15, + 19, -1, 15, 19, 24, 19, -1, 19, 15, -1, + 19, 15, 19, -1, 37, 3, -1, 37, -1, 16, + 5, -1, 19, 5, -1, 5, -1, 16, 6, -1, + 19, 6, -1, 6, -1, 16, 10, -1, 19, 10, + -1, 10, -1, 16, 7, -1, 19, 7, -1, 7, + -1, 16, 8, -1, 19, 8, -1, 8, -1, 16, + 9, -1, 19, 9, -1, 20, 9, -1, 21, 9, + -1, 9, -1, 38, -1, 18, 5, -1, 18, 6, + -1, 18, 10, -1, 18, 7, -1, 18, 8, -1, + 18, 9, -1, 40, -1, 41, -1, 20, -1, 18, + -1, 21, -1, 19, -1, 19, -1, -1, 23, 19, + -1, -1, 14, -1 +}; + +/* YYRLINE[YYN] -- source line where rule number YYN was defined. */ +static const yytype_uint16 yyrline[] = +{ + 0, 240, 240, 241, 245, 252, 254, 258, 260, 262, + 264, 266, 268, 270, 274, 282, 290, 300, 307, 319, + 324, 332, 334, 344, 346, 348, 353, 358, 363, 368, + 376, 381, 401, 408, 416, 424, 429, 435, 440, 449, + 459, 472, 474, 476, 478, 480, 482, 484, 486, 488, + 490, 492, 494, 496, 498, 500, 502, 504, 506, 508, + 510, 512, 516, 518, 520, 522, 524, 526, 530, 530, + 533, 534, 539, 540, 545, 583, 584, 590, 591 +}; +#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", "$undefined", "tAGO", "tDST", "tYEAR_UNIT", + "tMONTH_UNIT", "tHOUR_UNIT", "tMINUTE_UNIT", "tSEC_UNIT", "tDAY_UNIT", + "tDAY", "tDAYZONE", "tLOCAL_ZONE", "tMERIDIAN", "tMONTH", "tORDINAL", + "tZONE", "tSNUMBER", "tUNUMBER", "tSDECIMAL_NUMBER", "tUDECIMAL_NUMBER", + "'@'", "':'", "','", "'/'", "$accept", "spec", "timespec", "items", + "item", "time", "local_zone", "zone", "day", "date", "rel", "relunit", + "relunit_snumber", "seconds", "signed_seconds", "unsigned_seconds", + "number", "o_colon_minutes", "o_merid", 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, 64, 58, 44, 47 +}; +# endif + +/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */ +static const yytype_uint8 yyr1[] = +{ + 0, 26, 27, 27, 28, 29, 29, 30, 30, 30, + 30, 30, 30, 30, 31, 31, 31, 31, 31, 32, + 32, 33, 33, 33, 33, 33, 34, 34, 34, 34, + 35, 35, 35, 35, 35, 35, 35, 35, 35, 36, + 36, 37, 37, 37, 37, 37, 37, 37, 37, 37, + 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, + 37, 37, 38, 38, 38, 38, 38, 38, 39, 39, + 40, 40, 41, 41, 42, 43, 43, 44, 44 +}; + +/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */ +static const yytype_uint8 yyr2[] = +{ + 0, 2, 1, 1, 2, 0, 2, 1, 1, 1, + 1, 1, 1, 1, 2, 4, 5, 6, 7, 1, + 2, 1, 2, 3, 1, 2, 1, 2, 2, 2, + 3, 5, 3, 3, 3, 2, 4, 2, 3, 2, + 1, 2, 2, 1, 2, 2, 1, 2, 2, 1, + 2, 2, 1, 2, 2, 1, 2, 2, 2, 2, + 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, + 1, 1, 1, 1, 1, 0, 2, 0, 1 +}; + +/* 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[] = +{ + 5, 0, 0, 2, 3, 71, 73, 70, 72, 4, + 68, 69, 1, 43, 46, 52, 55, 60, 49, 26, + 24, 19, 0, 0, 21, 0, 74, 0, 0, 6, + 7, 8, 9, 11, 10, 12, 40, 61, 13, 27, + 20, 0, 35, 41, 44, 50, 53, 56, 47, 28, + 25, 75, 22, 62, 63, 65, 66, 67, 64, 42, + 45, 51, 54, 57, 48, 29, 14, 37, 0, 0, + 0, 58, 59, 39, 34, 0, 0, 23, 33, 38, + 32, 77, 30, 36, 76, 78, 75, 0, 15, 0, + 16, 77, 31, 75, 17, 18 +}; + +/* YYDEFGOTO[NTERM-NUM]. */ +static const yytype_int8 yydefgoto[] = +{ + -1, 2, 3, 4, 29, 30, 31, 32, 33, 34, + 35, 36, 37, 9, 10, 11, 38, 77, 88 +}; + +/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing + STATE-NUM. */ +#define YYPACT_NINF -79 +static const yytype_int8 yypact[] = +{ + -10, 47, 27, -79, 25, -79, -79, -79, -79, -79, + -79, -79, -79, -79, -79, -79, -79, -79, -79, 5, + -79, 59, 43, 42, 10, 49, -5, 62, 63, -79, + -79, -79, -79, -79, -79, -79, 70, -79, -79, -79, + -79, 56, 52, -79, -79, -79, -79, -79, -79, -79, + -79, 16, -79, -79, -79, -79, -79, -79, -79, -79, + -79, -79, -79, -79, -79, -79, -79, 51, 57, 58, + 60, -79, -79, -79, -79, 61, 64, -79, -79, -79, + -79, -7, 53, -79, -79, -79, 65, -2, -79, 66, + -79, 46, -79, 65, -79, -79 +}; + +/* YYPGOTO[NTERM-NUM]. */ +static const yytype_int8 yypgoto[] = +{ + -79, -79, -79, -79, -79, -79, -79, -79, -79, -79, + -79, -79, 67, -79, -79, -6, -79, -78, -9 +}; + +/* 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[] = +{ + 59, 60, 61, 62, 63, 64, 65, 85, 90, 66, + 67, 86, 1, 68, 50, 95, 87, 6, 69, 8, + 70, 53, 54, 55, 56, 57, 58, 12, 51, 39, + 13, 14, 15, 16, 17, 18, 19, 20, 21, 76, + 22, 23, 24, 25, 26, 27, 28, 43, 44, 45, + 46, 47, 48, 49, 53, 54, 55, 56, 57, 58, + 85, 41, 42, 40, 93, 5, 6, 7, 8, 78, + 79, 71, 72, 73, 74, 80, 75, 81, 89, 82, + 83, 91, 94, 84, 0, 92, 0, 0, 76, 0, + 0, 52 +}; + +static const yytype_int8 yycheck[] = +{ + 5, 6, 7, 8, 9, 10, 11, 14, 86, 14, + 15, 18, 22, 18, 4, 93, 23, 19, 23, 21, + 25, 5, 6, 7, 8, 9, 10, 0, 18, 24, + 5, 6, 7, 8, 9, 10, 11, 12, 13, 23, + 15, 16, 17, 18, 19, 20, 21, 5, 6, 7, + 8, 9, 10, 11, 5, 6, 7, 8, 9, 10, + 14, 18, 19, 4, 18, 18, 19, 20, 21, 18, + 19, 9, 9, 3, 18, 18, 24, 19, 25, 19, + 19, 87, 91, 19, -1, 19, -1, -1, 23, -1, + -1, 24 +}; + +/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing + symbol of state STATE-NUM. */ +static const yytype_uint8 yystos[] = +{ + 0, 22, 27, 28, 29, 18, 19, 20, 21, 39, + 40, 41, 0, 5, 6, 7, 8, 9, 10, 11, + 12, 13, 15, 16, 17, 18, 19, 20, 21, 30, + 31, 32, 33, 34, 35, 36, 37, 38, 42, 24, + 4, 18, 19, 5, 6, 7, 8, 9, 10, 11, + 4, 18, 38, 5, 6, 7, 8, 9, 10, 5, + 6, 7, 8, 9, 10, 11, 14, 15, 18, 23, + 25, 9, 9, 3, 18, 24, 23, 43, 18, 19, + 18, 19, 19, 19, 19, 14, 18, 23, 44, 25, + 43, 41, 19, 18, 44, 43 +}; + +#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 (pc, 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, YYLEX_PARAM) +#else +# define YYLEX yylex (&yylval, pc) +#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, pc); \ + YYFPRINTF (stderr, "\n"); \ + } \ +} while (YYID (0)) + + +/*--------------------------------. +| Print this symbol on YYOUTPUT. | +`--------------------------------*/ + +/*ARGSUSED*/ +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static void +yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep, parser_control *pc) +#else +static void +yy_symbol_value_print (yyoutput, yytype, yyvaluep, pc) + FILE *yyoutput; + int yytype; + YYSTYPE const * const yyvaluep; + parser_control *pc; +#endif +{ + if (!yyvaluep) + return; + YYUSE (pc); +# ifdef YYPRINT + if (yytype < YYNTOKENS) + YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep); +# else + YYUSE (yyoutput); +# endif + switch (yytype) + { + default: + break; + } +} + + +/*--------------------------------. +| Print this symbol on YYOUTPUT. | +`--------------------------------*/ + +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static void +yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep, parser_control *pc) +#else +static void +yy_symbol_print (yyoutput, yytype, yyvaluep, pc) + FILE *yyoutput; + int yytype; + YYSTYPE const * const yyvaluep; + parser_control *pc; +#endif +{ + if (yytype < YYNTOKENS) + YYFPRINTF (yyoutput, "token %s (", yytname[yytype]); + else + YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]); + + yy_symbol_value_print (yyoutput, yytype, yyvaluep, pc); + 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 *yybottom, yytype_int16 *yytop) +#else +static void +yy_stack_print (yybottom, yytop) + yytype_int16 *yybottom; + yytype_int16 *yytop; +#endif +{ + 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 (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, int yyrule, parser_control *pc) +#else +static void +yy_reduce_print (yyvsp, yyrule, pc) + YYSTYPE *yyvsp; + int yyrule; + parser_control *pc; +#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)]) + , pc); + fprintf (stderr, "\n"); + } +} + +# define YY_REDUCE_PRINT(Rule) \ +do { \ + if (yydebug) \ + yy_reduce_print (yyvsp, Rule, pc); \ +} while (YYID (0)) + +/* Nonzero means print parse trace. It is left uninitialized so that + multiple parsers can coexist. */ +int yydebug; +#else /* !YYDEBUG */ +# define YYDPRINTF(Args) +# define YY_SYMBOL_PRINT(Title, Type, Value, Location) +# define YY_STACK_PRINT(Bottom, Top) +# define YY_REDUCE_PRINT(Rule) +#endif /* !YYDEBUG */ + + +/* YYINITDEPTH -- initial size of the parser's stacks. */ +#ifndef YYINITDEPTH +# define YYINITDEPTH 200 +#endif + +/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only + if the built-in stack extension method is used). + + Do not make this value too large; the results are undefined if + YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH) + evaluated with infinite-precision integer arithmetic. */ + +#ifndef YYMAXDEPTH +# define YYMAXDEPTH 10000 +#endif + + + +#if YYERROR_VERBOSE + +# ifndef yystrlen +# if defined __GLIBC__ && defined _STRING_H +# define yystrlen strlen +# else +/* Return the length of YYSTR. */ +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static YYSIZE_T +yystrlen (const char *yystr) +#else +static YYSIZE_T +yystrlen (yystr) + const char *yystr; +#endif +{ + YYSIZE_T yylen; + for (yylen = 0; yystr[yylen]; yylen++) + continue; + return yylen; +} +# endif +# endif + +# ifndef yystpcpy +# if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE +# define yystpcpy stpcpy +# else +/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in + YYDEST. */ +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static char * +yystpcpy (char *yydest, const char *yysrc) +#else +static char * +yystpcpy (yydest, yysrc) + char *yydest; + const char *yysrc; +#endif +{ + char *yyd = yydest; + const char *yys = yysrc; + + while ((*yyd++ = *yys++) != '\0') + continue; + + return yyd - 1; +} +# endif +# endif + +# ifndef yytnamerr +/* Copy to YYRES the contents of YYSTR after stripping away unnecessary + quotes and backslashes, so that it's suitable for yyerror. The + heuristic is that double-quoting is unnecessary unless the string + contains an apostrophe, a comma, or backslash (other than + backslash-backslash). YYSTR is taken from yytname. If YYRES is + null, do not copy; instead, return the length of what the result + would have been. */ +static YYSIZE_T +yytnamerr (char *yyres, const char *yystr) +{ + if (*yystr == '"') + { + YYSIZE_T yyn = 0; + char const *yyp = yystr; + + for (;;) + switch (*++yyp) + { + case '\'': + case ',': + goto do_not_strip_quotes; + + case '\\': + if (*++yyp != '\\') + goto do_not_strip_quotes; + /* Fall through. */ + default: + if (yyres) + yyres[yyn] = *yyp; + yyn++; + break; + + case '"': + if (yyres) + yyres[yyn] = '\0'; + return yyn; + } + do_not_strip_quotes: ; + } + + if (! yyres) + return yystrlen (yystr); + + return yystpcpy (yyres, yystr) - yyres; +} +# endif + +/* Copy into YYRESULT an error message about the unexpected token + YYCHAR while in state YYSTATE. Return the number of bytes copied, + including the terminating null byte. If YYRESULT is null, do not + copy anything; just return the number of bytes that would be + copied. As a special case, return 0 if an ordinary "syntax error" + message will do. Return YYSIZE_MAXIMUM if overflow occurs during + size calculation. */ +static YYSIZE_T +yysyntax_error (char *yyresult, int yystate, int yychar) +{ + int yyn = yypact[yystate]; + + if (! (YYPACT_NINF < yyn && yyn <= YYLAST)) + return 0; + else + { + int yytype = YYTRANSLATE (yychar); + YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]); + YYSIZE_T yysize = yysize0; + YYSIZE_T yysize1; + int yysize_overflow = 0; + enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 }; + char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM]; + int yyx; + +# if 0 + /* This is so xgettext sees the translatable formats that are + constructed on the fly. */ + YY_("syntax error, unexpected %s"); + YY_("syntax error, unexpected %s, expecting %s"); + YY_("syntax error, unexpected %s, expecting %s or %s"); + YY_("syntax error, unexpected %s, expecting %s or %s or %s"); + YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"); +# endif + char *yyfmt; + char const *yyf; + static char const yyunexpected[] = "syntax error, unexpected %s"; + static char const yyexpecting[] = ", expecting %s"; + static char const yyor[] = " or %s"; + char yyformat[sizeof yyunexpected + + sizeof yyexpecting - 1 + + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2) + * (sizeof yyor - 1))]; + char const *yyprefix = yyexpecting; + + /* Start YYX at -YYN if negative to avoid negative indexes in + YYCHECK. */ + int yyxbegin = yyn < 0 ? -yyn : 0; + + /* Stay within bounds of both yycheck and yytname. */ + int yychecklim = YYLAST - yyn + 1; + int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS; + int yycount = 1; + + yyarg[0] = yytname[yytype]; + yyfmt = yystpcpy (yyformat, yyunexpected); + + for (yyx = yyxbegin; yyx < yyxend; ++yyx) + if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) + { + if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM) + { + yycount = 1; + yysize = yysize0; + yyformat[sizeof yyunexpected - 1] = '\0'; + break; + } + yyarg[yycount++] = yytname[yyx]; + yysize1 = yysize + yytnamerr (0, yytname[yyx]); + yysize_overflow |= (yysize1 < yysize); + yysize = yysize1; + yyfmt = yystpcpy (yyfmt, yyprefix); + yyprefix = yyor; + } + + yyf = YY_(yyformat); + yysize1 = yysize + yystrlen (yyf); + yysize_overflow |= (yysize1 < yysize); + yysize = yysize1; + + if (yysize_overflow) + return YYSIZE_MAXIMUM; + + if (yyresult) + { + /* Avoid sprintf, as that infringes on the user's name space. + Don't have undefined behavior even if the translation + produced a string with the wrong number of "%s"s. */ + char *yyp = yyresult; + int yyi = 0; + while ((*yyp = *yyf) != '\0') + { + if (*yyp == '%' && yyf[1] == 's' && yyi < yycount) + { + yyp += yytnamerr (yyp, yyarg[yyi++]); + yyf += 2; + } + else + { + yyp++; + yyf++; + } + } + } + return yysize; + } +} +#endif /* YYERROR_VERBOSE */ + + +/*-----------------------------------------------. +| Release the memory associated to this symbol. | +`-----------------------------------------------*/ + +/*ARGSUSED*/ +#if (defined __STDC__ || defined __C99__FUNC__ \ + || defined __cplusplus || defined _MSC_VER) +static void +yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep, parser_control *pc) +#else +static void +yydestruct (yymsg, yytype, yyvaluep, pc) + const char *yymsg; + int yytype; + YYSTYPE *yyvaluep; + parser_control *pc; +#endif +{ + YYUSE (yyvaluep); + YYUSE (pc); + + if (!yymsg) + yymsg = "Deleting"; + YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp); + + switch (yytype) + { + + default: + break; + } +} + + +/* Prevent warnings from -Wmissing-prototypes. */ + +#ifdef YYPARSE_PARAM +#if defined __STDC__ || defined __cplusplus +int yyparse (void *YYPARSE_PARAM); +#else +int yyparse (); +#endif +#else /* ! YYPARSE_PARAM */ +#if defined __STDC__ || defined __cplusplus +int yyparse (parser_control *pc); +#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 (parser_control *pc) +#else +int +yyparse (pc) + parser_control *pc; +#endif +#endif +{ + /* The lookahead symbol. */ +int yychar; + +/* The semantic value of the lookahead symbol. */ +YYSTYPE yylval; + +/* Number of syntax errors so far. */ +int yynerrs; + + int yystate; + int yyn; + int yyresult; + /* Number of tokens to shift before error messages enabled. */ + int yyerrstatus; + /* Lookahead 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; + + + +#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N)) + + YYSIZE_T yystacksize = YYINITDEPTH; + + /* The variables used to return semantic value and location from the + action routines. */ + YYSTYPE yyval; + + + /* 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; + + 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; + + + /* 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), + + &yystacksize); + + 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); + +# undef YYSTACK_RELOCATE + if (yyss1 != yyssa) + YYSTACK_FREE (yyss1); + } +# endif +#endif /* no yyoverflow */ + + yyssp = yyss + yysize - 1; + yyvsp = yyvs + 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)); + + 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 (yyn == YYPACT_NINF) + goto yydefault; + + /* Not known => get a lookahead token if don't already have one. */ + + /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead 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; + } + + /* 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); + + /* Discard the shifted token. */ + yychar = YYEMPTY; + + yystate = yyn; + *++yyvsp = yylval; + + 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: +/* Line 1269 of yacc.c. */ +#line 246 "getdate.y" + { + pc->seconds = (yyvsp[(2) - (2)].timespec); + pc->timespec_seen = true; + } + break; + + case 7: +/* Line 1269 of yacc.c. */ +#line 259 "getdate.y" + { pc->times_seen++; } + break; + + case 8: +/* Line 1269 of yacc.c. */ +#line 261 "getdate.y" + { pc->local_zones_seen++; } + break; + + case 9: +/* Line 1269 of yacc.c. */ +#line 263 "getdate.y" + { pc->zones_seen++; } + break; + + case 10: +/* Line 1269 of yacc.c. */ +#line 265 "getdate.y" + { pc->dates_seen++; } + break; + + case 11: +/* Line 1269 of yacc.c. */ +#line 267 "getdate.y" + { pc->days_seen++; } + break; + + case 12: +/* Line 1269 of yacc.c. */ +#line 269 "getdate.y" + { pc->rels_seen = true; } + break; + + case 14: +/* Line 1269 of yacc.c. */ +#line 275 "getdate.y" + { + pc->hour = (yyvsp[(1) - (2)].textintval).value; + pc->minutes = 0; + pc->seconds.tv_sec = 0; + pc->seconds.tv_nsec = 0; + pc->meridian = (yyvsp[(2) - (2)].intval); + } + break; + + case 15: +/* Line 1269 of yacc.c. */ +#line 283 "getdate.y" + { + pc->hour = (yyvsp[(1) - (4)].textintval).value; + pc->minutes = (yyvsp[(3) - (4)].textintval).value; + pc->seconds.tv_sec = 0; + pc->seconds.tv_nsec = 0; + pc->meridian = (yyvsp[(4) - (4)].intval); + } + break; + + case 16: +/* Line 1269 of yacc.c. */ +#line 291 "getdate.y" + { + pc->hour = (yyvsp[(1) - (5)].textintval).value; + pc->minutes = (yyvsp[(3) - (5)].textintval).value; + pc->seconds.tv_sec = 0; + pc->seconds.tv_nsec = 0; + pc->meridian = MER24; + pc->zones_seen++; + pc->time_zone = time_zone_hhmm ((yyvsp[(4) - (5)].textintval), (yyvsp[(5) - (5)].intval)); + } + break; + + case 17: +/* Line 1269 of yacc.c. */ +#line 301 "getdate.y" + { + pc->hour = (yyvsp[(1) - (6)].textintval).value; + pc->minutes = (yyvsp[(3) - (6)].textintval).value; + pc->seconds = (yyvsp[(5) - (6)].timespec); + pc->meridian = (yyvsp[(6) - (6)].intval); + } + break; + + case 18: +/* Line 1269 of yacc.c. */ +#line 308 "getdate.y" + { + pc->hour = (yyvsp[(1) - (7)].textintval).value; + pc->minutes = (yyvsp[(3) - (7)].textintval).value; + pc->seconds = (yyvsp[(5) - (7)].timespec); + pc->meridian = MER24; + pc->zones_seen++; + pc->time_zone = time_zone_hhmm ((yyvsp[(6) - (7)].textintval), (yyvsp[(7) - (7)].intval)); + } + break; + + case 19: +/* Line 1269 of yacc.c. */ +#line 320 "getdate.y" + { + pc->local_isdst = (yyvsp[(1) - (1)].intval); + pc->dsts_seen += (0 < (yyvsp[(1) - (1)].intval)); + } + break; + + case 20: +/* Line 1269 of yacc.c. */ +#line 325 "getdate.y" + { + pc->local_isdst = 1; + pc->dsts_seen += (0 < (yyvsp[(1) - (2)].intval)) + 1; + } + break; + + case 21: +/* Line 1269 of yacc.c. */ +#line 333 "getdate.y" + { pc->time_zone = (yyvsp[(1) - (1)].intval); } + break; + + case 22: +/* Line 1269 of yacc.c. */ +#line 335 "getdate.y" + { pc->time_zone = (yyvsp[(1) - (2)].intval); + pc->rel.ns += (yyvsp[(2) - (2)].rel).ns; + pc->rel.seconds += (yyvsp[(2) - (2)].rel).seconds; + pc->rel.minutes += (yyvsp[(2) - (2)].rel).minutes; + pc->rel.hour += (yyvsp[(2) - (2)].rel).hour; + pc->rel.day += (yyvsp[(2) - (2)].rel).day; + pc->rel.month += (yyvsp[(2) - (2)].rel).month; + pc->rel.year += (yyvsp[(2) - (2)].rel).year; + pc->rels_seen = true; } + break; + + case 23: +/* Line 1269 of yacc.c. */ +#line 345 "getdate.y" + { pc->time_zone = (yyvsp[(1) - (3)].intval) + time_zone_hhmm ((yyvsp[(2) - (3)].textintval), (yyvsp[(3) - (3)].intval)); } + break; + + case 24: +/* Line 1269 of yacc.c. */ +#line 347 "getdate.y" + { pc->time_zone = (yyvsp[(1) - (1)].intval) + 60; } + break; + + case 25: +/* Line 1269 of yacc.c. */ +#line 349 "getdate.y" + { pc->time_zone = (yyvsp[(1) - (2)].intval) + 60; } + break; + + case 26: +/* Line 1269 of yacc.c. */ +#line 354 "getdate.y" + { + pc->day_ordinal = 1; + pc->day_number = (yyvsp[(1) - (1)].intval); + } + break; + + case 27: +/* Line 1269 of yacc.c. */ +#line 359 "getdate.y" + { + pc->day_ordinal = 1; + pc->day_number = (yyvsp[(1) - (2)].intval); + } + break; + + case 28: +/* Line 1269 of yacc.c. */ +#line 364 "getdate.y" + { + pc->day_ordinal = (yyvsp[(1) - (2)].intval); + pc->day_number = (yyvsp[(2) - (2)].intval); + } + break; + + case 29: +/* Line 1269 of yacc.c. */ +#line 369 "getdate.y" + { + pc->day_ordinal = (yyvsp[(1) - (2)].textintval).value; + pc->day_number = (yyvsp[(2) - (2)].intval); + } + break; + + case 30: +/* Line 1269 of yacc.c. */ +#line 377 "getdate.y" + { + pc->month = (yyvsp[(1) - (3)].textintval).value; + pc->day = (yyvsp[(3) - (3)].textintval).value; + } + break; + + case 31: +/* Line 1269 of yacc.c. */ +#line 382 "getdate.y" + { + /* Interpret as YYYY/MM/DD if the first value has 4 or more digits, + otherwise as MM/DD/YY. + The goal in recognizing YYYY/MM/DD is solely to support legacy + machine-generated dates like those in an RCS log listing. If + you want portability, use the ISO 8601 format. */ + if (4 <= (yyvsp[(1) - (5)].textintval).digits) + { + pc->year = (yyvsp[(1) - (5)].textintval); + pc->month = (yyvsp[(3) - (5)].textintval).value; + pc->day = (yyvsp[(5) - (5)].textintval).value; + } + else + { + pc->month = (yyvsp[(1) - (5)].textintval).value; + pc->day = (yyvsp[(3) - (5)].textintval).value; + pc->year = (yyvsp[(5) - (5)].textintval); + } + } + break; + + case 32: +/* Line 1269 of yacc.c. */ +#line 402 "getdate.y" + { + /* ISO 8601 format. YYYY-MM-DD. */ + pc->year = (yyvsp[(1) - (3)].textintval); + pc->month = -(yyvsp[(2) - (3)].textintval).value; + pc->day = -(yyvsp[(3) - (3)].textintval).value; + } + break; + + case 33: +/* Line 1269 of yacc.c. */ +#line 409 "getdate.y" + { + /* e.g. 17-JUN-1992. */ + pc->day = (yyvsp[(1) - (3)].textintval).value; + pc->month = (yyvsp[(2) - (3)].intval); + pc->year.value = -(yyvsp[(3) - (3)].textintval).value; + pc->year.digits = (yyvsp[(3) - (3)].textintval).digits; + } + break; + + case 34: +/* Line 1269 of yacc.c. */ +#line 417 "getdate.y" + { + /* e.g. JUN-17-1992. */ + pc->month = (yyvsp[(1) - (3)].intval); + pc->day = -(yyvsp[(2) - (3)].textintval).value; + pc->year.value = -(yyvsp[(3) - (3)].textintval).value; + pc->year.digits = (yyvsp[(3) - (3)].textintval).digits; + } + break; + + case 35: +/* Line 1269 of yacc.c. */ +#line 425 "getdate.y" + { + pc->month = (yyvsp[(1) - (2)].intval); + pc->day = (yyvsp[(2) - (2)].textintval).value; + } + break; + + case 36: +/* Line 1269 of yacc.c. */ +#line 430 "getdate.y" + { + pc->month = (yyvsp[(1) - (4)].intval); + pc->day = (yyvsp[(2) - (4)].textintval).value; + pc->year = (yyvsp[(4) - (4)].textintval); + } + break; + + case 37: +/* Line 1269 of yacc.c. */ +#line 436 "getdate.y" + { + pc->day = (yyvsp[(1) - (2)].textintval).value; + pc->month = (yyvsp[(2) - (2)].intval); + } + break; + + case 38: +/* Line 1269 of yacc.c. */ +#line 441 "getdate.y" + { + pc->day = (yyvsp[(1) - (3)].textintval).value; + pc->month = (yyvsp[(2) - (3)].intval); + pc->year = (yyvsp[(3) - (3)].textintval); + } + break; + + case 39: +/* Line 1269 of yacc.c. */ +#line 450 "getdate.y" + { + pc->rel.ns -= (yyvsp[(1) - (2)].rel).ns; + pc->rel.seconds -= (yyvsp[(1) - (2)].rel).seconds; + pc->rel.minutes -= (yyvsp[(1) - (2)].rel).minutes; + pc->rel.hour -= (yyvsp[(1) - (2)].rel).hour; + pc->rel.day -= (yyvsp[(1) - (2)].rel).day; + pc->rel.month -= (yyvsp[(1) - (2)].rel).month; + pc->rel.year -= (yyvsp[(1) - (2)].rel).year; + } + break; + + case 40: +/* Line 1269 of yacc.c. */ +#line 460 "getdate.y" + { + pc->rel.ns += (yyvsp[(1) - (1)].rel).ns; + pc->rel.seconds += (yyvsp[(1) - (1)].rel).seconds; + pc->rel.minutes += (yyvsp[(1) - (1)].rel).minutes; + pc->rel.hour += (yyvsp[(1) - (1)].rel).hour; + pc->rel.day += (yyvsp[(1) - (1)].rel).day; + pc->rel.month += (yyvsp[(1) - (1)].rel).month; + pc->rel.year += (yyvsp[(1) - (1)].rel).year; + } + break; + + case 41: +/* Line 1269 of yacc.c. */ +#line 473 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[(1) - (2)].intval); } + break; + + case 42: +/* Line 1269 of yacc.c. */ +#line 475 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[(1) - (2)].textintval).value; } + break; + + case 43: +/* Line 1269 of yacc.c. */ +#line 477 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = 1; } + break; + + case 44: +/* Line 1269 of yacc.c. */ +#line 479 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[(1) - (2)].intval); } + break; + + case 45: +/* Line 1269 of yacc.c. */ +#line 481 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[(1) - (2)].textintval).value; } + break; + + case 46: +/* Line 1269 of yacc.c. */ +#line 483 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = 1; } + break; + + case 47: +/* Line 1269 of yacc.c. */ +#line 485 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[(1) - (2)].intval) * (yyvsp[(2) - (2)].intval); } + break; + + case 48: +/* Line 1269 of yacc.c. */ +#line 487 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[(1) - (2)].textintval).value * (yyvsp[(2) - (2)].intval); } + break; + + case 49: +/* Line 1269 of yacc.c. */ +#line 489 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[(1) - (1)].intval); } + break; + + case 50: +/* Line 1269 of yacc.c. */ +#line 491 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[(1) - (2)].intval); } + break; + + case 51: +/* Line 1269 of yacc.c. */ +#line 493 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[(1) - (2)].textintval).value; } + break; + + case 52: +/* Line 1269 of yacc.c. */ +#line 495 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = 1; } + break; + + case 53: +/* Line 1269 of yacc.c. */ +#line 497 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[(1) - (2)].intval); } + break; + + case 54: +/* Line 1269 of yacc.c. */ +#line 499 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[(1) - (2)].textintval).value; } + break; + + case 55: +/* Line 1269 of yacc.c. */ +#line 501 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = 1; } + break; + + case 56: +/* Line 1269 of yacc.c. */ +#line 503 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].intval); } + break; + + case 57: +/* Line 1269 of yacc.c. */ +#line 505 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].textintval).value; } + break; + + case 58: +/* Line 1269 of yacc.c. */ +#line 507 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].timespec).tv_sec; (yyval.rel).ns = (yyvsp[(1) - (2)].timespec).tv_nsec; } + break; + + case 59: +/* Line 1269 of yacc.c. */ +#line 509 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].timespec).tv_sec; (yyval.rel).ns = (yyvsp[(1) - (2)].timespec).tv_nsec; } + break; + + case 60: +/* Line 1269 of yacc.c. */ +#line 511 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = 1; } + break; + + case 62: +/* Line 1269 of yacc.c. */ +#line 517 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[(1) - (2)].textintval).value; } + break; + + case 63: +/* Line 1269 of yacc.c. */ +#line 519 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[(1) - (2)].textintval).value; } + break; + + case 64: +/* Line 1269 of yacc.c. */ +#line 521 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[(1) - (2)].textintval).value * (yyvsp[(2) - (2)].intval); } + break; + + case 65: +/* Line 1269 of yacc.c. */ +#line 523 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[(1) - (2)].textintval).value; } + break; + + case 66: +/* Line 1269 of yacc.c. */ +#line 525 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[(1) - (2)].textintval).value; } + break; + + case 67: +/* Line 1269 of yacc.c. */ +#line 527 "getdate.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[(1) - (2)].textintval).value; } + break; + + case 71: +/* Line 1269 of yacc.c. */ +#line 535 "getdate.y" + { (yyval.timespec).tv_sec = (yyvsp[(1) - (1)].textintval).value; (yyval.timespec).tv_nsec = 0; } + break; + + case 73: +/* Line 1269 of yacc.c. */ +#line 541 "getdate.y" + { (yyval.timespec).tv_sec = (yyvsp[(1) - (1)].textintval).value; (yyval.timespec).tv_nsec = 0; } + break; + + case 74: +/* Line 1269 of yacc.c. */ +#line 546 "getdate.y" + { + if (pc->dates_seen && ! pc->year.digits + && ! pc->rels_seen && (pc->times_seen || 2 < (yyvsp[(1) - (1)].textintval).digits)) + pc->year = (yyvsp[(1) - (1)].textintval); + else + { + if (4 < (yyvsp[(1) - (1)].textintval).digits) + { + pc->dates_seen++; + pc->day = (yyvsp[(1) - (1)].textintval).value % 100; + pc->month = ((yyvsp[(1) - (1)].textintval).value / 100) % 100; + pc->year.value = (yyvsp[(1) - (1)].textintval).value / 10000; + pc->year.digits = (yyvsp[(1) - (1)].textintval).digits - 4; + } + else + { + pc->times_seen++; + if ((yyvsp[(1) - (1)].textintval).digits <= 2) + { + pc->hour = (yyvsp[(1) - (1)].textintval).value; + pc->minutes = 0; + } + else + { + pc->hour = (yyvsp[(1) - (1)].textintval).value / 100; + pc->minutes = (yyvsp[(1) - (1)].textintval).value % 100; + } + pc->seconds.tv_sec = 0; + pc->seconds.tv_nsec = 0; + pc->meridian = MER24; + } + } + } + break; + + case 75: +/* Line 1269 of yacc.c. */ +#line 583 "getdate.y" + { (yyval.intval) = -1; } + break; + + case 76: +/* Line 1269 of yacc.c. */ +#line 585 "getdate.y" + { (yyval.intval) = (yyvsp[(2) - (2)].textintval).value; } + break; + + case 77: +/* Line 1269 of yacc.c. */ +#line 590 "getdate.y" + { (yyval.intval) = MER24; } + break; + + case 78: +/* Line 1269 of yacc.c. */ +#line 592 "getdate.y" + { (yyval.intval) = (yyvsp[(1) - (1)].intval); } + break; + + +/* Line 1269 of yacc.c. */ +#line 2221 "getdate.c" + default: break; + } + YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc); + + YYPOPSTACK (yylen); + yylen = 0; + YY_STACK_PRINT (yyss, yyssp); + + *++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. */ + + 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 (pc, 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 (pc, yymsg); + } + else + { + yyerror (pc, YY_("syntax error")); + if (yysize != 0) + goto yyexhaustedlab; + } + } +#endif + } + + + + 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, pc); + 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 like GCC when the user code never invokes + YYERROR and the label yyerrorlab therefore never appears in user + code. */ + if (/*CONSTCOND*/ 0) + goto yyerrorlab; + + /* 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; + + + yydestruct ("Error: popping", + yystos[yystate], yyvsp, pc); + YYPOPSTACK (1); + yystate = *yyssp; + YY_STACK_PRINT (yyss, yyssp); + } + + *++yyvsp = yylval; + + + /* 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 (pc, YY_("memory exhausted")); + yyresult = 2; + /* Fall through. */ +#endif + +yyreturn: + if (yychar != YYEMPTY) + yydestruct ("Cleanup: discarding lookahead", + yytoken, &yylval, pc); + /* 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, pc); + YYPOPSTACK (1); + } +#ifndef yyoverflow + if (yyss != yyssa) + YYSTACK_FREE (yyss); +#endif +#if YYERROR_VERBOSE + if (yymsg != yymsgbuf) + YYSTACK_FREE (yymsg); +#endif + /* Make sure YYID is used. */ + return YYID (yyresult); +} + + +/* Line 1486 of yacc.c. */ +#line 595 "getdate.y" + + +static table const meridian_table[] = +{ + { "AM", tMERIDIAN, MERam }, + { "A.M.", tMERIDIAN, MERam }, + { "PM", tMERIDIAN, MERpm }, + { "P.M.", tMERIDIAN, MERpm }, + { NULL, 0, 0 } +}; + +static table const dst_table[] = +{ + { "DST", tDST, 0 } +}; + +static table const month_and_day_table[] = +{ + { "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, 0, 0 } +}; + +static table const time_units_table[] = +{ + { "YEAR", tYEAR_UNIT, 1 }, + { "MONTH", tMONTH_UNIT, 1 }, + { "FORTNIGHT",tDAY_UNIT, 14 }, + { "WEEK", tDAY_UNIT, 7 }, + { "DAY", tDAY_UNIT, 1 }, + { "HOUR", tHOUR_UNIT, 1 }, + { "MINUTE", tMINUTE_UNIT, 1 }, + { "MIN", tMINUTE_UNIT, 1 }, + { "SECOND", tSEC_UNIT, 1 }, + { "SEC", tSEC_UNIT, 1 }, + { NULL, 0, 0 } +}; + +/* Assorted relative-time words. */ +static table const relative_time_table[] = +{ + { "TOMORROW", tDAY_UNIT, 1 }, + { "YESTERDAY",tDAY_UNIT, -1 }, + { "TODAY", tDAY_UNIT, 0 }, + { "NOW", tDAY_UNIT, 0 }, + { "LAST", tORDINAL, -1 }, + { "THIS", tORDINAL, 0 }, + { "NEXT", tORDINAL, 1 }, + { "FIRST", tORDINAL, 1 }, +/*{ "SECOND", tORDINAL, 2 }, */ + { "THIRD", tORDINAL, 3 }, + { "FOURTH", tORDINAL, 4 }, + { "FIFTH", tORDINAL, 5 }, + { "SIXTH", tORDINAL, 6 }, + { "SEVENTH", tORDINAL, 7 }, + { "EIGHTH", tORDINAL, 8 }, + { "NINTH", tORDINAL, 9 }, + { "TENTH", tORDINAL, 10 }, + { "ELEVENTH", tORDINAL, 11 }, + { "TWELFTH", tORDINAL, 12 }, + { "AGO", tAGO, 1 }, + { NULL, 0, 0 } +}; + +/* The universal time zone table. These labels can be used even for + time stamps that would not otherwise be valid, e.g., GMT time + stamps in London during summer. */ +static table const universal_time_zone_table[] = +{ + { "GMT", tZONE, HOUR ( 0) }, /* Greenwich Mean */ + { "UT", tZONE, HOUR ( 0) }, /* Universal (Coordinated) */ + { "UTC", tZONE, HOUR ( 0) }, + { NULL, 0, 0 } +}; + +/* The time zone table. This table is necessarily incomplete, as time + zone abbreviations are ambiguous; e.g. Australians interpret "EST" + as Eastern time in Australia, not as US Eastern Standard Time. + You cannot rely on getdate to handle arbitrary time zone + abbreviations; use numeric abbreviations like `-0500' instead. */ +static table const time_zone_table[] = +{ + { "WET", tZONE, HOUR ( 0) }, /* Western European */ + { "WEST", tDAYZONE, HOUR ( 0) }, /* Western European Summer */ + { "BST", tDAYZONE, HOUR ( 0) }, /* British Summer */ + { "ART", tZONE, -HOUR ( 3) }, /* Argentina */ + { "BRT", tZONE, -HOUR ( 3) }, /* Brazil */ + { "BRST", tDAYZONE, -HOUR ( 3) }, /* Brazil Summer */ + { "NST", tZONE, -(HOUR ( 3) + 30) }, /* Newfoundland Standard */ + { "NDT", tDAYZONE,-(HOUR ( 3) + 30) }, /* Newfoundland Daylight */ + { "AST", tZONE, -HOUR ( 4) }, /* Atlantic Standard */ + { "ADT", tDAYZONE, -HOUR ( 4) }, /* Atlantic Daylight */ + { "CLT", tZONE, -HOUR ( 4) }, /* Chile */ + { "CLST", tDAYZONE, -HOUR ( 4) }, /* Chile Summer */ + { "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 */ + { "AKST", tZONE, -HOUR ( 9) }, /* Alaska Standard */ + { "AKDT", tDAYZONE, -HOUR ( 9) }, /* Alaska Daylight */ + { "HST", tZONE, -HOUR (10) }, /* Hawaii Standard */ + { "HAST", tZONE, -HOUR (10) }, /* Hawaii-Aleutian Standard */ + { "HADT", tDAYZONE, -HOUR (10) }, /* Hawaii-Aleutian Daylight */ + { "SST", tZONE, -HOUR (12) }, /* Samoa Standard */ + { "WAT", tZONE, HOUR ( 1) }, /* West Africa */ + { "CET", tZONE, HOUR ( 1) }, /* Central European */ + { "CEST", tDAYZONE, HOUR ( 1) }, /* Central European Summer */ + { "MET", tZONE, HOUR ( 1) }, /* Middle European */ + { "MEZ", tZONE, HOUR ( 1) }, /* Middle European */ + { "MEST", tDAYZONE, HOUR ( 1) }, /* Middle European Summer */ + { "MESZ", tDAYZONE, HOUR ( 1) }, /* Middle European Summer */ + { "EET", tZONE, HOUR ( 2) }, /* Eastern European */ + { "EEST", tDAYZONE, HOUR ( 2) }, /* Eastern European Summer */ + { "CAT", tZONE, HOUR ( 2) }, /* Central Africa */ + { "SAST", tZONE, HOUR ( 2) }, /* South Africa Standard */ + { "EAT", tZONE, HOUR ( 3) }, /* East Africa */ + { "MSK", tZONE, HOUR ( 3) }, /* Moscow */ + { "MSD", tDAYZONE, HOUR ( 3) }, /* Moscow Daylight */ + { "IST", tZONE, (HOUR ( 5) + 30) }, /* India Standard */ + { "SGT", tZONE, HOUR ( 8) }, /* Singapore */ + { "KST", tZONE, HOUR ( 9) }, /* Korea Standard */ + { "JST", tZONE, HOUR ( 9) }, /* Japan Standard */ + { "GST", tZONE, HOUR (10) }, /* Guam Standard */ + { "NZST", tZONE, HOUR (12) }, /* New Zealand Standard */ + { "NZDT", tDAYZONE, HOUR (12) }, /* New Zealand Daylight */ + { NULL, 0, 0 } +}; + +/* Military time zone table. */ +static table const military_table[] = +{ + { "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, 0, 0 } +}; + + + +/* Convert a time zone expressed as HH:MM into an integer count of + minutes. If MM is negative, then S is of the form HHMM and needs + to be picked apart; otherwise, S is of the form HH. */ + +static long int +time_zone_hhmm (textint s, long int mm) +{ + if (mm < 0) + return (s.value / 100) * 60 + s.value % 100; + else + return s.value * 60 + (s.negative ? -mm : mm); +} + +static int +to_hour (long int hours, int meridian) +{ + switch (meridian) + { + default: /* Pacify GCC. */ + case MER24: + return 0 <= hours && hours < 24 ? hours : -1; + case MERam: + return 0 < hours && hours < 12 ? hours : hours == 12 ? 0 : -1; + case MERpm: + return 0 < hours && hours < 12 ? hours + 12 : hours == 12 ? 12 : -1; + } +} + +static long int +to_year (textint textyear) +{ + long int year = textyear.value; + + if (year < 0) + year = -year; + + /* XPG4 suggests that years 00-68 map to 2000-2068, and + years 69-99 map to 1969-1999. */ + else if (textyear.digits == 2) + year += year < 69 ? 2000 : 1900; + + return year; +} + +static table const * +lookup_zone (parser_control const *pc, char const *name) +{ + table const *tp; + + for (tp = universal_time_zone_table; tp->name; tp++) + if (strcmp (name, tp->name) == 0) + return tp; + + /* Try local zone abbreviations before those in time_zone_table, as + the local ones are more likely to be right. */ + for (tp = pc->local_time_zone_table; tp->name; tp++) + if (strcmp (name, tp->name) == 0) + return tp; + + for (tp = time_zone_table; tp->name; tp++) + if (strcmp (name, tp->name) == 0) + return tp; + + return NULL; +} + +#if ! HAVE_TM_GMTOFF +/* Yield the difference between *A and *B, + measured in seconds, ignoring leap seconds. + The body of this function is taken directly from the GNU C Library; + see src/strftime.c. */ +static long int +tm_diff (struct tm const *a, struct tm const *b) +{ + /* Compute intervening leap days correctly even if year is negative. + Take care to avoid int overflow in leap day calculations. */ + int a4 = SHR (a->tm_year, 2) + SHR (TM_YEAR_BASE, 2) - ! (a->tm_year & 3); + int b4 = SHR (b->tm_year, 2) + SHR (TM_YEAR_BASE, 2) - ! (b->tm_year & 3); + int a100 = a4 / 25 - (a4 % 25 < 0); + int b100 = b4 / 25 - (b4 % 25 < 0); + int a400 = SHR (a100, 2); + int b400 = SHR (b100, 2); + int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400); + long int ayear = a->tm_year; + long int years = ayear - b->tm_year; + long int days = (365 * years + intervening_leap_days + + (a->tm_yday - b->tm_yday)); + return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour)) + + (a->tm_min - b->tm_min)) + + (a->tm_sec - b->tm_sec)); +} +#endif /* ! HAVE_TM_GMTOFF */ + +static table const * +lookup_word (parser_control const *pc, char *word) +{ + char *p; + char *q; + size_t wordlen; + table const *tp; + bool period_found; + bool abbrev; + + /* Make it uppercase. */ + for (p = word; *p; p++) + { + unsigned char ch = *p; + *p = toupper (ch); + } + + for (tp = meridian_table; tp->name; tp++) + if (strcmp (word, tp->name) == 0) + return tp; + + /* See if we have an abbreviation for a month. */ + wordlen = strlen (word); + abbrev = wordlen == 3 || (wordlen == 4 && word[3] == '.'); + + for (tp = month_and_day_table; tp->name; tp++) + if ((abbrev ? strncmp (word, tp->name, 3) : strcmp (word, tp->name)) == 0) + return tp; + + if ((tp = lookup_zone (pc, word))) + return tp; + + if (strcmp (word, dst_table[0].name) == 0) + return dst_table; + + for (tp = time_units_table; tp->name; tp++) + if (strcmp (word, tp->name) == 0) + return tp; + + /* Strip off any plural and try the units table again. */ + if (word[wordlen - 1] == 'S') + { + word[wordlen - 1] = '\0'; + for (tp = time_units_table; tp->name; tp++) + if (strcmp (word, tp->name) == 0) + return tp; + word[wordlen - 1] = 'S'; /* For "this" in relative_time_table. */ + } + + for (tp = relative_time_table; tp->name; tp++) + if (strcmp (word, tp->name) == 0) + return tp; + + /* Military time zones. */ + if (wordlen == 1) + for (tp = military_table; tp->name; tp++) + if (word[0] == tp->name[0]) + return tp; + + /* Drop out any periods and try the time zone table again. */ + for (period_found = false, p = q = word; (*p = *q); q++) + if (*q == '.') + period_found = true; + else + p++; + if (period_found && (tp = lookup_zone (pc, word))) + return tp; + + return NULL; +} + +static int +yylex (YYSTYPE *lvalp, parser_control *pc) +{ + unsigned char c; + size_t count; + + for (;;) + { + while (c = *pc->input, isspace (c)) + pc->input++; + + if (ISDIGIT (c) || c == '-' || c == '+') + { + char const *p; + int sign; + unsigned long int value; + if (c == '-' || c == '+') + { + sign = c == '-' ? -1 : 1; + while (c = *++pc->input, isspace (c)) + continue; + if (! ISDIGIT (c)) + /* skip the '-' sign */ + continue; + } + else + sign = 0; + p = pc->input; + for (value = 0; ; value *= 10) + { + unsigned long int value1 = value + (c - '0'); + if (value1 < value) + return '?'; + value = value1; + c = *++p; + if (! ISDIGIT (c)) + break; + if (ULONG_MAX / 10 < value) + return '?'; + } + if ((c == '.' || c == ',') && ISDIGIT (p[1])) + { + time_t s; + int ns; + int digits; + unsigned long int value1; + + /* Check for overflow when converting value to time_t. */ + if (sign < 0) + { + s = - value; + if (0 < s) + return '?'; + value1 = -s; + } + else + { + s = value; + if (s < 0) + return '?'; + value1 = s; + } + if (value != value1) + return '?'; + + /* Accumulate fraction, to ns precision. */ + p++; + ns = *p++ - '0'; + for (digits = 2; digits <= LOG10_BILLION; digits++) + { + ns *= 10; + if (ISDIGIT (*p)) + ns += *p++ - '0'; + } + + /* Skip excess digits, truncating toward -Infinity. */ + if (sign < 0) + for (; ISDIGIT (*p); p++) + if (*p != '0') + { + ns++; + break; + } + while (ISDIGIT (*p)) + p++; + + /* Adjust to the timespec convention, which is that + tv_nsec is always a positive offset even if tv_sec is + negative. */ + if (sign < 0 && ns) + { + s--; + if (! (s < 0)) + return '?'; + ns = BILLION - ns; + } + + lvalp->timespec.tv_sec = s; + lvalp->timespec.tv_nsec = ns; + pc->input = p; + return sign ? tSDECIMAL_NUMBER : tUDECIMAL_NUMBER; + } + else + { + lvalp->textintval.negative = sign < 0; + if (sign < 0) + { + lvalp->textintval.value = - value; + if (0 < lvalp->textintval.value) + return '?'; + } + else + { + lvalp->textintval.value = value; + if (lvalp->textintval.value < 0) + return '?'; + } + lvalp->textintval.digits = p - pc->input; + pc->input = p; + return sign ? tSNUMBER : tUNUMBER; + } + } + + if (isalpha (c)) + { + char buff[20]; + char *p = buff; + table const *tp; + + do + { + if (p < buff + sizeof buff - 1) + *p++ = c; + c = *++pc->input; + } + while (isalpha (c) || c == '.'); + + *p = '\0'; + tp = lookup_word (pc, buff); + if (! tp) + return '?'; + lvalp->intval = tp->value; + return tp->type; + } + + if (c != '(') + return *pc->input++; + count = 0; + do + { + c = *pc->input++; + if (c == '\0') + return c; + if (c == '(') + count++; + else if (c == ')') + count--; + } + while (count != 0); + } +} + +/* Do nothing if the parser reports an error. */ +static int +yyerror (parser_control const *pc ATTRIBUTE_UNUSED, + char const *s ATTRIBUTE_UNUSED) +{ + return 0; +} + +/* If *TM0 is the old and *TM1 is the new value of a struct tm after + passing it to mktime, return true if it's OK that mktime returned T. + It's not OK if *TM0 has out-of-range members. */ + +static bool +mktime_ok (struct tm const *tm0, struct tm const *tm1, time_t t) +{ + if (t == (time_t) -1) + { + /* Guard against falsely reporting an error when parsing a time + stamp that happens to equal (time_t) -1, on a host that + supports such a time stamp. */ + tm1 = localtime (&t); + if (!tm1) + return false; + } + + return ! ((tm0->tm_sec ^ tm1->tm_sec) + | (tm0->tm_min ^ tm1->tm_min) + | (tm0->tm_hour ^ tm1->tm_hour) + | (tm0->tm_mday ^ tm1->tm_mday) + | (tm0->tm_mon ^ tm1->tm_mon) + | (tm0->tm_year ^ tm1->tm_year)); +} + +/* A reasonable upper bound for the size of ordinary TZ strings. + Use heap allocation if TZ's length exceeds this. */ +enum { TZBUFSIZE = 100 }; + +/* Return a copy of TZ, stored in TZBUF if it fits, and heap-allocated + otherwise. */ +static char * +get_tz (char tzbuf[TZBUFSIZE]) +{ + char *tz = getenv ("TZ"); + if (tz) + { + size_t tzsize = strlen (tz) + 1; + tz = (tzsize <= TZBUFSIZE + ? memcpy (tzbuf, tz, tzsize) + : xmemdup (tz, tzsize)); + } + return tz; +} + +/* Parse a date/time string, storing the resulting time value into *RESULT. + The string itself is pointed to by P. Return true if successful. + P can be an incomplete or relative time specification; if so, use + *NOW as the basis for the returned time. */ +bool +get_date (struct timespec *result, char const *p, struct timespec const *now) +{ + time_t Start; + long int Start_ns; + struct tm const *tmp; + struct tm tm; + struct tm tm0; + parser_control pc; + struct timespec gettime_buffer; + unsigned char c; + bool tz_was_altered = false; + char *tz0 = NULL; + char tz0buf[TZBUFSIZE]; + bool ok = true; + + if (! now) + { + gettime (&gettime_buffer); + now = &gettime_buffer; + } + + Start = now->tv_sec; + Start_ns = now->tv_nsec; + + tmp = localtime (&now->tv_sec); + if (! tmp) + return false; + + while (c = *p, isspace (c)) + p++; + + if (strncmp (p, "TZ=\"", 4) == 0) + { + char const *tzbase = p + 4; + size_t tzsize = 1; + char const *s; + + for (s = tzbase; *s; s++, tzsize++) + if (*s == '\\') + { + s++; + if (! (*s == '\\' || *s == '"')) + break; + } + else if (*s == '"') + { + char *z; + char *tz1; + char tz1buf[TZBUFSIZE]; + bool large_tz = TZBUFSIZE < tzsize; + bool setenv_ok; + tz0 = get_tz (tz0buf); + z = tz1 = large_tz ? xmalloc (tzsize) : tz1buf; + for (s = tzbase; *s != '"'; s++) + *z++ = *(s += *s == '\\'); + *z = '\0'; + setenv_ok = setenv ("TZ", tz1, 1) == 0; + if (large_tz) + free (tz1); + if (!setenv_ok) + goto fail; + tz_was_altered = true; + p = s + 1; + } + } + + pc.input = p; + pc.year.value = tmp->tm_year; + pc.year.value += TM_YEAR_BASE; + pc.year.digits = 0; + pc.month = tmp->tm_mon + 1; + pc.day = tmp->tm_mday; + pc.hour = tmp->tm_hour; + pc.minutes = tmp->tm_min; + pc.seconds.tv_sec = tmp->tm_sec; + pc.seconds.tv_nsec = Start_ns; + tm.tm_isdst = tmp->tm_isdst; + + pc.meridian = MER24; + pc.rel = RELATIVE_TIME_0; + pc.timespec_seen = false; + pc.rels_seen = false; + pc.dates_seen = 0; + pc.days_seen = 0; + pc.times_seen = 0; + pc.local_zones_seen = 0; + pc.dsts_seen = 0; + pc.zones_seen = 0; + +#if HAVE_STRUCT_TM_TM_ZONE + pc.local_time_zone_table[0].name = tmp->tm_zone; + pc.local_time_zone_table[0].type = tLOCAL_ZONE; + pc.local_time_zone_table[0].value = tmp->tm_isdst; + pc.local_time_zone_table[1].name = NULL; + + /* Probe the names used in the next three calendar quarters, looking + for a tm_isdst different from the one we already have. */ + { + int quarter; + for (quarter = 1; quarter <= 3; quarter++) + { + time_t probe = Start + quarter * (90 * 24 * 60 * 60); + struct tm const *probe_tm = localtime (&probe); + if (probe_tm && probe_tm->tm_zone + && probe_tm->tm_isdst != pc.local_time_zone_table[0].value) + { + { + pc.local_time_zone_table[1].name = probe_tm->tm_zone; + pc.local_time_zone_table[1].type = tLOCAL_ZONE; + pc.local_time_zone_table[1].value = probe_tm->tm_isdst; + pc.local_time_zone_table[2].name = NULL; + } + break; + } + } + } +#else +#if HAVE_TZNAME + { +# ifndef tzname + extern char *tzname[]; +# endif + int i; + for (i = 0; i < 2; i++) + { + pc.local_time_zone_table[i].name = tzname[i]; + pc.local_time_zone_table[i].type = tLOCAL_ZONE; + pc.local_time_zone_table[i].value = i; + } + pc.local_time_zone_table[i].name = NULL; + } +#else + pc.local_time_zone_table[0].name = NULL; +#endif +#endif + + if (pc.local_time_zone_table[0].name && pc.local_time_zone_table[1].name + && ! strcmp (pc.local_time_zone_table[0].name, + pc.local_time_zone_table[1].name)) + { + /* This locale uses the same abbrevation for standard and + daylight times. So if we see that abbreviation, we don't + know whether it's daylight time. */ + pc.local_time_zone_table[0].value = -1; + pc.local_time_zone_table[1].name = NULL; + } + + if (yyparse (&pc) != 0) + goto fail; + + if (pc.timespec_seen) + *result = pc.seconds; + else + { + if (1 < (pc.times_seen | pc.dates_seen | pc.days_seen | pc.dsts_seen + | (pc.local_zones_seen + pc.zones_seen))) + goto fail; + + tm.tm_year = to_year (pc.year) - TM_YEAR_BASE; + tm.tm_mon = pc.month - 1; + tm.tm_mday = pc.day; + if (pc.times_seen || (pc.rels_seen && ! pc.dates_seen && ! pc.days_seen)) + { + tm.tm_hour = to_hour (pc.hour, pc.meridian); + if (tm.tm_hour < 0) + goto fail; + tm.tm_min = pc.minutes; + tm.tm_sec = pc.seconds.tv_sec; + } + else + { + tm.tm_hour = tm.tm_min = tm.tm_sec = 0; + pc.seconds.tv_nsec = 0; + } + + /* Let mktime deduce tm_isdst if we have an absolute time stamp. */ + if (pc.dates_seen | pc.days_seen | pc.times_seen) + tm.tm_isdst = -1; + + /* But if the input explicitly specifies local time with or without + DST, give mktime that information. */ + if (pc.local_zones_seen) + tm.tm_isdst = pc.local_isdst; + + tm0 = tm; + + Start = mktime (&tm); + + if (! mktime_ok (&tm0, &tm, Start)) + { + if (! pc.zones_seen) + goto fail; + else + { + /* Guard against falsely reporting errors near the time_t + boundaries when parsing times in other time zones. For + example, suppose the input string "1969-12-31 23:00:00 -0100", + the current time zone is 8 hours ahead of UTC, and the min + time_t value is 1970-01-01 00:00:00 UTC. Then the min + localtime value is 1970-01-01 08:00:00, and mktime will + therefore fail on 1969-12-31 23:00:00. To work around the + problem, set the time zone to 1 hour behind UTC temporarily + by setting TZ="XXX1:00" and try mktime again. */ + + long int time_zone = pc.time_zone; + long int abs_time_zone = time_zone < 0 ? - time_zone : time_zone; + long int abs_time_zone_hour = abs_time_zone / 60; + int abs_time_zone_min = abs_time_zone % 60; + char tz1buf[sizeof "XXX+0:00" + + sizeof pc.time_zone * CHAR_BIT / 3]; + if (!tz_was_altered) + tz0 = get_tz (tz0buf); + sprintf (tz1buf, "XXX%s%ld:%02d", "-" + (time_zone < 0), + abs_time_zone_hour, abs_time_zone_min); + if (setenv ("TZ", tz1buf, 1) != 0) + goto fail; + tz_was_altered = true; + tm = tm0; + Start = mktime (&tm); + if (! mktime_ok (&tm0, &tm, Start)) + goto fail; + } + } + + if (pc.days_seen && ! pc.dates_seen) + { + tm.tm_mday += ((pc.day_number - tm.tm_wday + 7) % 7 + + 7 * (pc.day_ordinal - (0 < pc.day_ordinal))); + tm.tm_isdst = -1; + Start = mktime (&tm); + if (Start == (time_t) -1) + goto fail; + } + + if (pc.zones_seen) + { + long int delta = pc.time_zone * 60; + time_t t1; +#ifdef HAVE_TM_GMTOFF + delta -= tm.tm_gmtoff; +#else + time_t t = Start; + struct tm const *gmt = gmtime (&t); + if (! gmt) + goto fail; + delta -= tm_diff (&tm, gmt); +#endif + t1 = Start - delta; + if ((Start < t1) != (delta < 0)) + goto fail; /* time_t overflow */ + Start = t1; + } + + /* Add relative date. */ + if (pc.rel.year | pc.rel.month | pc.rel.day) + { + int year = tm.tm_year + pc.rel.year; + int month = tm.tm_mon + pc.rel.month; + int day = tm.tm_mday + pc.rel.day; + if (((year < tm.tm_year) ^ (pc.rel.year < 0)) + | ((month < tm.tm_mon) ^ (pc.rel.month < 0)) + | ((day < tm.tm_mday) ^ (pc.rel.day < 0))) + goto fail; + tm.tm_year = year; + tm.tm_mon = month; + tm.tm_mday = day; + tm.tm_hour = tm0.tm_hour; + tm.tm_min = tm0.tm_min; + tm.tm_sec = tm0.tm_sec; + tm.tm_isdst = tm0.tm_isdst; + Start = mktime (&tm); + if (Start == (time_t) -1) + goto fail; + } + + /* Add relative hours, minutes, and seconds. On hosts that support + leap seconds, ignore the possibility of leap seconds; e.g., + "+ 10 minutes" adds 600 seconds, even if one of them is a + leap second. Typically this is not what the user wants, but it's + too hard to do it the other way, because the time zone indicator + must be applied before relative times, and if mktime is applied + again the time zone will be lost. */ + { + long int sum_ns = pc.seconds.tv_nsec + pc.rel.ns; + long int normalized_ns = (sum_ns % BILLION + BILLION) % BILLION; + time_t t0 = Start; + long int d1 = 60 * 60 * pc.rel.hour; + time_t t1 = t0 + d1; + long int d2 = 60 * pc.rel.minutes; + time_t t2 = t1 + d2; + long int d3 = pc.rel.seconds; + time_t t3 = t2 + d3; + long int d4 = (sum_ns - normalized_ns) / BILLION; + time_t t4 = t3 + d4; + + if ((d1 / (60 * 60) ^ pc.rel.hour) + | (d2 / 60 ^ pc.rel.minutes) + | ((t1 < t0) ^ (d1 < 0)) + | ((t2 < t1) ^ (d2 < 0)) + | ((t3 < t2) ^ (d3 < 0)) + | ((t4 < t3) ^ (d4 < 0))) + goto fail; + + result->tv_sec = t4; + result->tv_nsec = normalized_ns; + } + } + + goto done; + + fail: + ok = false; + done: + if (tz_was_altered) + ok &= (tz0 ? setenv ("TZ", tz0, 1) : unsetenv ("TZ")) == 0; + if (tz0 != tz0buf) + free (tz0); + return ok; +} + +#if TEST + +int +main (int ac, char **av) +{ + char buff[BUFSIZ]; + + printf ("Enter date, or blank line to exit.\n\t> "); + fflush (stdout); + + buff[BUFSIZ - 1] = '\0'; + while (fgets (buff, BUFSIZ - 1, stdin) && buff[0]) + { + struct timespec d; + struct tm const *tm; + if (! get_date (&d, buff, NULL)) + printf ("Bad format - couldn't convert.\n"); + else if (! (tm = localtime (&d.tv_sec))) + { + long int sec = d.tv_sec; + printf ("localtime (%ld) failed\n", sec); + } + else + { + int ns = d.tv_nsec; + printf ("%04ld-%02d-%02d %02d:%02d:%02d.%09d\n", + tm->tm_year + 1900L, tm->tm_mon + 1, tm->tm_mday, + tm->tm_hour, tm->tm_min, tm->tm_sec, ns); + } + printf ("\t> "); + fflush (stdout); + } + return 0; +} +#endif /* TEST */ + |