diff options
Diffstat (limited to 'sys-utils/hwclock-parse-date.c')
| -rw-r--r-- | sys-utils/hwclock-parse-date.c | 3292 |
1 files changed, 3292 insertions, 0 deletions
diff --git a/sys-utils/hwclock-parse-date.c b/sys-utils/hwclock-parse-date.c new file mode 100644 index 0000000..8e540bd --- /dev/null +++ b/sys-utils/hwclock-parse-date.c @@ -0,0 +1,3292 @@ +/* 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 1 + +/* Push parsers. */ +#define YYPUSH 0 + +/* Pull parsers. */ +#define YYPULL 1 + + + + +/* First part of user prologue. */ +#line 1 "sys-utils/hwclock-parse-date.y" + +/** + * SPDX-License-Identifier: GPL-3.0-or-later + * + * Parse a string into an internal timestamp. + * + * This file is based on gnulib parse-datetime.y-dd7a871 with + * the other gnulib dependencies removed for use in util-linux. + * + * Copyright (C) 1999-2000, 2002-2017 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 <http://www.gnu.org/licenses/>. + * + * 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 timestamps, and in October 2004 to support + * TZ strings in dates. + */ + +/** + * FIXME: Check for arithmetic overflow in all cases, not just + * some of them. + */ + +#include <sys/time.h> +#include <time.h> + +#include "c.h" +#include "timeutils.h" +#include "hwclock.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 parse-datetime.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 <inttypes.h> +#include <limits.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + + +#include <stdarg.h> +#include "cctype.h" +#include "nls.h" + +/** + * Bison's skeleton tests _STDLIB_H, while some stdlib.h headers + * use _STDLIB_H_ as witness. Map the latter to the one bison uses. + * FIXME: this is temporary. Remove when we have a mechanism to ensure + * that the version we're using is fixed, too. + */ +#ifdef _STDLIB_H_ +# undef _STDLIB_H +# define _STDLIB_H 1 +#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 TM_YEAR_BASE 1900 + +#define HOUR(x) ((x) * 60) + +#define STREQ(a, b) (strcmp (a, b) == 0) + +/** + * Convert a possibly-signed character to an unsigned character. This is + * a bit safer than casting to unsigned char, since it catches some type + * errors that the cast doesn't. + */ +static unsigned char to_uchar (char ch) { return ch; } + +/** + * FIXME: It also assumes that signed integer overflow silently wraps around, + * but this is not true any more with recent versions of GCC 4. + */ + +/** + * An integer value, and the number of digits in its textual + * representation. + */ +typedef struct { + int negative; + intmax_t 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 year, month, day, hour, minutes, seconds, and nanoseconds. */ +typedef struct { + intmax_t year; + intmax_t month; + intmax_t day; + intmax_t hour; + intmax_t minutes; + time_t seconds; + long 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. */ + intmax_t 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. */ + int time_zone; + + /* Style used for time. */ + int meridian; + + /* Gregorian year, month, day, hour, minutes, seconds, and ns. */ + textint year; + intmax_t month; + intmax_t day; + intmax_t hour; + intmax_t minutes; + struct timespec seconds; /* includes nanoseconds */ + + /* Relative year, month, day, hour, minutes, seconds, and ns. */ + relative_time rel; + + /* Presence or counts of some nonterminals parsed so far. */ + int timespec_seen; + int 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 abbreviations, null terminated. */ + 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 int time_zone_hhmm (parser_control *, textint, textint); + +/** + * Extract into *PC any date and time info from a string of digits + * of the form e.g., YYYYMMDD, YYMMDD, HHMM, HH (and sometimes YYY, + * YYYY, ...). + */ +static void digits_to_date_time(parser_control *pc, textint text_int) +{ + if (pc->dates_seen && ! pc->year.digits + && ! pc->rels_seen && (pc->times_seen || 2 < text_int.digits)) { + pc->year = text_int; + } else { + if (4 < text_int.digits) { + pc->dates_seen++; + pc->day = text_int.value % 100; + pc->month = (text_int.value / 100) % 100; + pc->year.value = text_int.value / 10000; + pc->year.digits = text_int.digits - 4; + } else { + pc->times_seen++; + if (text_int.digits <= 2) { + pc->hour = text_int.value; + pc->minutes = 0; + } + else { + pc->hour = text_int.value / 100; + pc->minutes = text_int.value % 100; + } + pc->seconds.tv_sec = 0; + pc->seconds.tv_nsec = 0; + pc->meridian = MER24; + } + } +} + +/* Increment PC->rel by FACTOR * REL (FACTOR is 1 or -1). */ +static void apply_relative_time(parser_control *pc, relative_time rel, + int factor) +{ + pc->rel.ns += factor * rel.ns; + pc->rel.seconds += factor * rel.seconds; + pc->rel.minutes += factor * rel.minutes; + pc->rel.hour += factor * rel.hour; + pc->rel.day += factor * rel.day; + pc->rel.month += factor * rel.month; + pc->rel.year += factor * rel.year; + pc->rels_seen = 1; +} + +/* Set PC-> hour, minutes, seconds and nanoseconds members from arguments. */ +static void +set_hhmmss(parser_control *pc, intmax_t hour, intmax_t minutes, + time_t sec, long nsec) +{ + pc->hour = hour; + pc->minutes = minutes; + pc->seconds.tv_sec = sec; + pc->seconds.tv_nsec = nsec; +} + + +#line 353 "sys-utils/hwclock-parse-date.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 */ + tDST = 259, /* tDST */ + tYEAR_UNIT = 260, /* tYEAR_UNIT */ + tMONTH_UNIT = 261, /* tMONTH_UNIT */ + tHOUR_UNIT = 262, /* tHOUR_UNIT */ + tMINUTE_UNIT = 263, /* tMINUTE_UNIT */ + tSEC_UNIT = 264, /* tSEC_UNIT */ + tDAY_UNIT = 265, /* tDAY_UNIT */ + tDAY_SHIFT = 266, /* tDAY_SHIFT */ + tDAY = 267, /* tDAY */ + tDAYZONE = 268, /* tDAYZONE */ + tLOCAL_ZONE = 269, /* tLOCAL_ZONE */ + tMERIDIAN = 270, /* tMERIDIAN */ + tMONTH = 271, /* tMONTH */ + tORDINAL = 272, /* tORDINAL */ + tZONE = 273, /* tZONE */ + tSNUMBER = 274, /* tSNUMBER */ + tUNUMBER = 275, /* tUNUMBER */ + tSDECIMAL_NUMBER = 276, /* tSDECIMAL_NUMBER */ + tUDECIMAL_NUMBER = 277 /* tUDECIMAL_NUMBER */ + }; + 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 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_SHIFT 266 +#define tDAY 267 +#define tDAYZONE 268 +#define tLOCAL_ZONE 269 +#define tMERIDIAN 270 +#define tMONTH 271 +#define tORDINAL 272 +#define tZONE 273 +#define tSNUMBER 274 +#define tUNUMBER 275 +#define tSDECIMAL_NUMBER 276 +#define tUDECIMAL_NUMBER 277 + +/* Value type. */ +#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED +union YYSTYPE +{ +#line 294 "sys-utils/hwclock-parse-date.y" + + intmax_t intval; + textint textintval; + struct timespec timespec; + relative_time rel; + +#line 454 "sys-utils/hwclock-parse-date.c" + +}; +typedef union YYSTYPE YYSTYPE; +# define YYSTYPE_IS_TRIVIAL 1 +# define YYSTYPE_IS_DECLARED 1 +#endif + + + + +int yyparse (parser_control *pc); + + + +/* 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_tDST = 4, /* tDST */ + YYSYMBOL_tYEAR_UNIT = 5, /* tYEAR_UNIT */ + YYSYMBOL_tMONTH_UNIT = 6, /* tMONTH_UNIT */ + YYSYMBOL_tHOUR_UNIT = 7, /* tHOUR_UNIT */ + YYSYMBOL_tMINUTE_UNIT = 8, /* tMINUTE_UNIT */ + YYSYMBOL_tSEC_UNIT = 9, /* tSEC_UNIT */ + YYSYMBOL_tDAY_UNIT = 10, /* tDAY_UNIT */ + YYSYMBOL_tDAY_SHIFT = 11, /* tDAY_SHIFT */ + YYSYMBOL_tDAY = 12, /* tDAY */ + YYSYMBOL_tDAYZONE = 13, /* tDAYZONE */ + YYSYMBOL_tLOCAL_ZONE = 14, /* tLOCAL_ZONE */ + YYSYMBOL_tMERIDIAN = 15, /* tMERIDIAN */ + YYSYMBOL_tMONTH = 16, /* tMONTH */ + YYSYMBOL_tORDINAL = 17, /* tORDINAL */ + YYSYMBOL_tZONE = 18, /* tZONE */ + YYSYMBOL_tSNUMBER = 19, /* tSNUMBER */ + YYSYMBOL_tUNUMBER = 20, /* tUNUMBER */ + YYSYMBOL_tSDECIMAL_NUMBER = 21, /* tSDECIMAL_NUMBER */ + YYSYMBOL_tUDECIMAL_NUMBER = 22, /* tUDECIMAL_NUMBER */ + YYSYMBOL_23_ = 23, /* '@' */ + YYSYMBOL_24_T_ = 24, /* 'T' */ + YYSYMBOL_25_ = 25, /* ':' */ + YYSYMBOL_26_ = 26, /* ',' */ + YYSYMBOL_27_ = 27, /* '/' */ + YYSYMBOL_YYACCEPT = 28, /* $accept */ + YYSYMBOL_spec = 29, /* spec */ + YYSYMBOL_timespec = 30, /* timespec */ + YYSYMBOL_items = 31, /* items */ + YYSYMBOL_item = 32, /* item */ + YYSYMBOL_datetime = 33, /* datetime */ + YYSYMBOL_iso_8601_datetime = 34, /* iso_8601_datetime */ + YYSYMBOL_time = 35, /* time */ + YYSYMBOL_iso_8601_time = 36, /* iso_8601_time */ + YYSYMBOL_o_zone_offset = 37, /* o_zone_offset */ + YYSYMBOL_zone_offset = 38, /* zone_offset */ + YYSYMBOL_local_zone = 39, /* local_zone */ + YYSYMBOL_zone = 40, /* zone */ + YYSYMBOL_day = 41, /* day */ + YYSYMBOL_date = 42, /* date */ + YYSYMBOL_iso_8601_date = 43, /* iso_8601_date */ + YYSYMBOL_rel = 44, /* rel */ + YYSYMBOL_relunit = 45, /* relunit */ + YYSYMBOL_relunit_snumber = 46, /* relunit_snumber */ + YYSYMBOL_dayshift = 47, /* dayshift */ + YYSYMBOL_seconds = 48, /* seconds */ + YYSYMBOL_signed_seconds = 49, /* signed_seconds */ + YYSYMBOL_unsigned_seconds = 50, /* unsigned_seconds */ + YYSYMBOL_number = 51, /* number */ + YYSYMBOL_hybrid = 52, /* hybrid */ + YYSYMBOL_o_colon_minutes = 53 /* o_colon_minutes */ +}; +typedef enum yysymbol_kind_t yysymbol_kind_t; + + + + +#ifdef short +# undef short +#endif + +/* On compilers that do not define __PTRDIFF_MAX__ etc., make sure + <limits.h> and (if available) <stdint.h> are included + so that the code can choose integer types of a good width. */ + +#ifndef __PTRDIFF_MAX__ +# include <limits.h> /* INFRINGES ON USER NAME SPACE */ +# if defined __STDC_VERSION__ && 199901 <= __STDC_VERSION__ +# include <stdint.h> /* INFRINGES ON USER NAME SPACE */ +# define YY_STDINT_H +# endif +#endif + +/* Narrow types that promote to a signed type and that can represent a + signed or unsigned integer of at least N bits. In tables they can + save space and decrease cache pressure. Promoting to a signed type + helps avoid bugs in integer arithmetic. */ + +#ifdef __INT_LEAST8_MAX__ +typedef __INT_LEAST8_TYPE__ yytype_int8; +#elif defined YY_STDINT_H +typedef int_least8_t yytype_int8; +#else +typedef signed char yytype_int8; +#endif + +#ifdef __INT_LEAST16_MAX__ +typedef __INT_LEAST16_TYPE__ yytype_int16; +#elif defined YY_STDINT_H +typedef int_least16_t yytype_int16; +#else +typedef short yytype_int16; +#endif + +/* Work around bug in HP-UX 11.23, which defines these macros + incorrectly for preprocessor constants. This workaround can likely + be removed in 2023, as HPE has promised support for HP-UX 11.23 + (aka HP-UX 11i v2) only through the end of 2022; see Table 2 of + <https://h20195.www2.hpe.com/V2/getpdf.aspx/4AA4-7673ENW.pdf>. */ +#ifdef __hpux +# undef UINT_LEAST8_MAX +# undef UINT_LEAST16_MAX +# define UINT_LEAST8_MAX 255 +# define UINT_LEAST16_MAX 65535 +#endif + +#if defined __UINT_LEAST8_MAX__ && __UINT_LEAST8_MAX__ <= __INT_MAX__ +typedef __UINT_LEAST8_TYPE__ yytype_uint8; +#elif (!defined __UINT_LEAST8_MAX__ && defined YY_STDINT_H \ + && UINT_LEAST8_MAX <= INT_MAX) +typedef uint_least8_t yytype_uint8; +#elif !defined __UINT_LEAST8_MAX__ && UCHAR_MAX <= INT_MAX +typedef unsigned char yytype_uint8; +#else +typedef short yytype_uint8; +#endif + +#if defined __UINT_LEAST16_MAX__ && __UINT_LEAST16_MAX__ <= __INT_MAX__ +typedef __UINT_LEAST16_TYPE__ yytype_uint16; +#elif (!defined __UINT_LEAST16_MAX__ && defined YY_STDINT_H \ + && UINT_LEAST16_MAX <= INT_MAX) +typedef uint_least16_t yytype_uint16; +#elif !defined __UINT_LEAST16_MAX__ && USHRT_MAX <= INT_MAX +typedef unsigned short yytype_uint16; +#else +typedef int yytype_uint16; +#endif + +#ifndef YYPTRDIFF_T +# if defined __PTRDIFF_TYPE__ && defined __PTRDIFF_MAX__ +# define YYPTRDIFF_T __PTRDIFF_TYPE__ +# define YYPTRDIFF_MAXIMUM __PTRDIFF_MAX__ +# elif defined PTRDIFF_MAX +# ifndef ptrdiff_t +# include <stddef.h> /* INFRINGES ON USER NAME SPACE */ +# endif +# define YYPTRDIFF_T ptrdiff_t +# define YYPTRDIFF_MAXIMUM PTRDIFF_MAX +# else +# define YYPTRDIFF_T long +# define YYPTRDIFF_MAXIMUM LONG_MAX +# endif +#endif + +#ifndef YYSIZE_T +# ifdef __SIZE_TYPE__ +# define YYSIZE_T __SIZE_TYPE__ +# elif defined size_t +# define YYSIZE_T size_t +# elif defined __STDC_VERSION__ && 199901 <= __STDC_VERSION__ +# include <stddef.h> /* INFRINGES ON USER NAME SPACE */ +# define YYSIZE_T size_t +# else +# define YYSIZE_T unsigned +# endif +#endif + +#define YYSIZE_MAXIMUM \ + YY_CAST (YYPTRDIFF_T, \ + (YYPTRDIFF_MAXIMUM < YY_CAST (YYSIZE_T, -1) \ + ? YYPTRDIFF_MAXIMUM \ + : YY_CAST (YYSIZE_T, -1))) + +#define YYSIZEOF(X) YY_CAST (YYPTRDIFF_T, sizeof (X)) + + +/* Stored state numbers (used for stacks). */ +typedef yytype_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 12 +/* YYLAST -- Last index in YYTABLE. */ +#define YYLAST 112 + +/* YYNTOKENS -- Number of terminals. */ +#define YYNTOKENS 28 +/* YYNNTS -- Number of nonterminals. */ +#define YYNNTS 26 +/* YYNRULES -- Number of rules. */ +#define YYNRULES 91 +/* YYNSTATES -- Number of states. */ +#define YYNSTATES 114 + +/* YYMAXUTOK -- Last valid token kind. */ +#define YYMAXUTOK 277 + + +/* 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, 26, 2, 2, 27, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 25, 2, + 2, 2, 2, 2, 23, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 24, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 1, 2, 3, 4, + 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, + 15, 16, 17, 18, 19, 20, 21, 22 +}; + +#if YYDEBUG +/* YYRLINE[YYN] -- Source line where rule number YYN was defined. */ +static const yytype_int16 yyrline[] = +{ + 0, 321, 321, 322, 326, 332, 334, 338, 341, 344, + 347, 350, 353, 356, 357, 358, 362, 366, 370, 374, + 378, 382, 386, 390, 394, 400, 402, 406, 431, 435, + 446, 449, 452, 456, 460, 464, 467, 473, 477, 481, + 485, 492, 496, 514, 521, 528, 532, 537, 541, 546, + 550, 559, 561, 563, 568, 570, 572, 574, 576, 578, + 580, 582, 584, 586, 588, 590, 592, 594, 596, 598, + 600, 602, 607, 612, 614, 618, 620, 622, 624, 626, + 628, 633, 637, 637, 640, 641, 646, 647, 652, 657, + 669, 670 +}; +#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", "tDST", + "tYEAR_UNIT", "tMONTH_UNIT", "tHOUR_UNIT", "tMINUTE_UNIT", "tSEC_UNIT", + "tDAY_UNIT", "tDAY_SHIFT", "tDAY", "tDAYZONE", "tLOCAL_ZONE", + "tMERIDIAN", "tMONTH", "tORDINAL", "tZONE", "tSNUMBER", "tUNUMBER", + "tSDECIMAL_NUMBER", "tUDECIMAL_NUMBER", "'@'", "'T'", "':'", "','", + "'/'", "$accept", "spec", "timespec", "items", "item", "datetime", + "iso_8601_datetime", "time", "iso_8601_time", "o_zone_offset", + "zone_offset", "local_zone", "zone", "day", "date", "iso_8601_date", + "rel", "relunit", "relunit_snumber", "dayshift", "seconds", + "signed_seconds", "unsigned_seconds", "number", "hybrid", + "o_colon_minutes", YY_NULLPTR +}; + +static const char * +yysymbol_name (yysymbol_kind_t yysymbol) +{ + return yytname[yysymbol]; +} +#endif + +#define YYPACT_NINF (-93) + +#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[] = +{ + 38, 27, 77, -93, 46, -93, -93, -93, -93, -93, + -93, -93, -93, -93, -93, -93, -93, -93, -93, -93, + 62, -93, 82, -3, 66, 3, 74, -4, 83, 84, + 75, -93, -93, -93, -93, -93, -93, -93, -93, -93, + 71, -93, 93, -93, -93, -93, -93, -93, -93, 78, + 72, -93, -93, -93, -93, -93, -93, -93, -93, 25, + -93, -93, -93, -93, -93, -93, -93, -93, -93, -93, + -93, -93, -93, -93, -93, 21, 19, 79, 80, -93, + -93, -93, -93, -93, 81, -93, -93, 85, 86, -93, + -93, -93, -93, -93, -6, 76, 17, -93, -93, -93, + -93, 87, 69, -93, -93, 88, 89, -1, -93, 18, + -93, -93, 69, 91 +}; + +/* 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[] = +{ + 5, 0, 0, 2, 3, 85, 87, 84, 86, 4, + 82, 83, 1, 56, 59, 65, 68, 73, 62, 81, + 37, 35, 28, 0, 0, 30, 0, 88, 0, 0, + 31, 6, 7, 16, 8, 21, 9, 10, 12, 11, + 49, 13, 52, 74, 53, 14, 15, 38, 29, 0, + 45, 54, 57, 63, 66, 69, 60, 39, 36, 90, + 32, 75, 76, 78, 79, 80, 77, 55, 58, 64, + 67, 70, 61, 40, 18, 47, 90, 0, 0, 22, + 89, 71, 72, 33, 0, 51, 44, 0, 0, 34, + 43, 48, 50, 27, 25, 41, 0, 17, 46, 91, + 19, 90, 0, 23, 26, 0, 0, 25, 42, 25, + 20, 24, 0, 25 +}; + +/* YYPGOTO[NTERM-NUM]. */ +static const yytype_int8 yypgoto[] = +{ + -93, -93, -93, -93, -93, -93, -93, -93, 20, -68, + -27, -93, -93, -93, -93, -93, -93, -93, 60, -93, + -93, -93, -92, -93, -93, 43 +}; + +/* YYDEFGOTO[NTERM-NUM]. */ +static const yytype_int8 yydefgoto[] = +{ + 0, 2, 3, 4, 31, 32, 33, 34, 35, 103, + 104, 36, 37, 38, 39, 40, 41, 42, 43, 44, + 9, 10, 11, 45, 46, 93 +}; + +/* 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[] = +{ + 79, 67, 68, 69, 70, 71, 72, 58, 73, 100, + 107, 74, 75, 101, 110, 76, 49, 50, 101, 102, + 113, 77, 59, 78, 61, 62, 63, 64, 65, 66, + 61, 62, 63, 64, 65, 66, 101, 101, 92, 111, + 90, 91, 106, 112, 88, 111, 5, 6, 7, 8, + 88, 13, 14, 15, 16, 17, 18, 19, 20, 21, + 22, 1, 23, 24, 25, 26, 27, 28, 29, 79, + 30, 51, 52, 53, 54, 55, 56, 12, 57, 61, + 62, 63, 64, 65, 66, 60, 48, 80, 47, 6, + 83, 8, 81, 82, 26, 84, 85, 86, 87, 94, + 95, 96, 89, 105, 97, 98, 99, 0, 108, 109, + 101, 0, 88 +}; + +static const yytype_int8 yycheck[] = +{ + 27, 5, 6, 7, 8, 9, 10, 4, 12, 15, + 102, 15, 16, 19, 15, 19, 19, 20, 19, 25, + 112, 25, 19, 27, 5, 6, 7, 8, 9, 10, + 5, 6, 7, 8, 9, 10, 19, 19, 19, 107, + 19, 20, 25, 25, 25, 113, 19, 20, 21, 22, + 25, 5, 6, 7, 8, 9, 10, 11, 12, 13, + 14, 23, 16, 17, 18, 19, 20, 21, 22, 96, + 24, 5, 6, 7, 8, 9, 10, 0, 12, 5, + 6, 7, 8, 9, 10, 25, 4, 27, 26, 20, + 30, 22, 9, 9, 19, 24, 3, 19, 26, 20, + 20, 20, 59, 27, 84, 20, 20, -1, 20, 20, + 19, -1, 25 +}; + +/* YYSTOS[STATE-NUM] -- The symbol kind of the accessing symbol of + state STATE-NUM. */ +static const yytype_int8 yystos[] = +{ + 0, 23, 29, 30, 31, 19, 20, 21, 22, 48, + 49, 50, 0, 5, 6, 7, 8, 9, 10, 11, + 12, 13, 14, 16, 17, 18, 19, 20, 21, 22, + 24, 32, 33, 34, 35, 36, 39, 40, 41, 42, + 43, 44, 45, 46, 47, 51, 52, 26, 4, 19, + 20, 5, 6, 7, 8, 9, 10, 12, 4, 19, + 46, 5, 6, 7, 8, 9, 10, 5, 6, 7, + 8, 9, 10, 12, 15, 16, 19, 25, 27, 38, + 46, 9, 9, 46, 24, 3, 19, 26, 25, 53, + 19, 20, 19, 53, 20, 20, 20, 36, 20, 20, + 15, 19, 25, 37, 38, 27, 25, 50, 20, 20, + 15, 37, 25, 50 +}; + +/* YYR1[RULE-NUM] -- Symbol kind of the left-hand side of rule RULE-NUM. */ +static const yytype_int8 yyr1[] = +{ + 0, 28, 29, 29, 30, 31, 31, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 33, 34, 35, 35, + 35, 35, 36, 36, 36, 37, 37, 38, 39, 39, + 40, 40, 40, 40, 40, 40, 40, 41, 41, 41, + 41, 42, 42, 42, 42, 42, 42, 42, 42, 42, + 43, 44, 44, 44, 45, 45, 45, 45, 45, 45, + 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, + 45, 45, 45, 45, 45, 46, 46, 46, 46, 46, + 46, 47, 48, 48, 49, 49, 50, 50, 51, 52, + 53, 53 +}; + +/* YYR2[RULE-NUM] -- Number of symbols on the right-hand side of rule RULE-NUM. */ +static const yytype_int8 yyr2[] = +{ + 0, 2, 1, 1, 2, 0, 2, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 3, 2, 4, + 6, 1, 2, 4, 6, 0, 1, 2, 1, 2, + 1, 1, 2, 2, 3, 1, 2, 1, 2, 2, + 2, 3, 5, 3, 3, 2, 4, 2, 3, 1, + 3, 2, 1, 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, 1, 2, + 0, 2 +}; + + +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 (pc, 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, pc); \ + 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, parser_control *pc) +{ + FILE *yyoutput = yyo; + YY_USE (yyoutput); + YY_USE (pc); + 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, parser_control *pc) +{ + YYFPRINTF (yyo, "%s %s (", + yykind < YYNTOKENS ? "token" : "nterm", yysymbol_name (yykind)); + + yy_symbol_value_print (yyo, yykind, yyvaluep, pc); + 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, parser_control *pc) +{ + 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)], pc); + YYFPRINTF (stderr, "\n"); + } +} + +# define YY_REDUCE_PRINT(Rule) \ +do { \ + if (yydebug) \ + yy_reduce_print (yyssp, yyvsp, Rule, pc); \ +} 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, parser_control *pc) +{ + YY_USE (yyvaluep); + YY_USE (pc); + if (!yymsg) + yymsg = "Deleting"; + YY_SYMBOL_PRINT (yymsg, yykind, yyvaluep, yylocationp); + + YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN + YY_USE (yykind); + YY_IGNORE_MAYBE_UNINITIALIZED_END +} + + + + + + +/*----------. +| yyparse. | +`----------*/ + +int +yyparse (parser_control *pc) +{ +/* Lookahead token kind. */ +int yychar; + + +/* The semantic value of the lookahead symbol. */ +/* Default value used for initialization, for pacifying older GCCs + or non-GCC compilers. */ +YY_INITIAL_VALUE (static YYSTYPE yyval_default;) +YYSTYPE yylval YY_INITIAL_VALUE (= yyval_default); + + /* Number of syntax errors so far. */ + int yynerrs = 0; + + 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 (&yylval, pc); + } + + 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: /* timespec: '@' seconds */ +#line 326 "sys-utils/hwclock-parse-date.y" + { + pc->seconds = (yyvsp[0].timespec); + pc->timespec_seen = 1; + } +#line 1579 "sys-utils/hwclock-parse-date.c" + break; + + case 7: /* item: datetime */ +#line 338 "sys-utils/hwclock-parse-date.y" + { + pc->times_seen++; pc->dates_seen++; + } +#line 1587 "sys-utils/hwclock-parse-date.c" + break; + + case 8: /* item: time */ +#line 341 "sys-utils/hwclock-parse-date.y" + { + pc->times_seen++; + } +#line 1595 "sys-utils/hwclock-parse-date.c" + break; + + case 9: /* item: local_zone */ +#line 344 "sys-utils/hwclock-parse-date.y" + { + pc->local_zones_seen++; + } +#line 1603 "sys-utils/hwclock-parse-date.c" + break; + + case 10: /* item: zone */ +#line 347 "sys-utils/hwclock-parse-date.y" + { + pc->zones_seen++; + } +#line 1611 "sys-utils/hwclock-parse-date.c" + break; + + case 11: /* item: date */ +#line 350 "sys-utils/hwclock-parse-date.y" + { + pc->dates_seen++; + } +#line 1619 "sys-utils/hwclock-parse-date.c" + break; + + case 12: /* item: day */ +#line 353 "sys-utils/hwclock-parse-date.y" + { + pc->days_seen++; + } +#line 1627 "sys-utils/hwclock-parse-date.c" + break; + + case 18: /* time: tUNUMBER tMERIDIAN */ +#line 370 "sys-utils/hwclock-parse-date.y" + { + set_hhmmss (pc, (yyvsp[-1].textintval).value, 0, 0, 0); + pc->meridian = (yyvsp[0].intval); + } +#line 1636 "sys-utils/hwclock-parse-date.c" + break; + + case 19: /* time: tUNUMBER ':' tUNUMBER tMERIDIAN */ +#line 374 "sys-utils/hwclock-parse-date.y" + { + set_hhmmss (pc, (yyvsp[-3].textintval).value, (yyvsp[-1].textintval).value, 0, 0); + pc->meridian = (yyvsp[0].intval); + } +#line 1645 "sys-utils/hwclock-parse-date.c" + break; + + case 20: /* time: tUNUMBER ':' tUNUMBER ':' unsigned_seconds tMERIDIAN */ +#line 378 "sys-utils/hwclock-parse-date.y" + { + set_hhmmss (pc, (yyvsp[-5].textintval).value, (yyvsp[-3].textintval).value, (yyvsp[-1].timespec).tv_sec, (yyvsp[-1].timespec).tv_nsec); + pc->meridian = (yyvsp[0].intval); + } +#line 1654 "sys-utils/hwclock-parse-date.c" + break; + + case 22: /* iso_8601_time: tUNUMBER zone_offset */ +#line 386 "sys-utils/hwclock-parse-date.y" + { + set_hhmmss (pc, (yyvsp[-1].textintval).value, 0, 0, 0); + pc->meridian = MER24; + } +#line 1663 "sys-utils/hwclock-parse-date.c" + break; + + case 23: /* iso_8601_time: tUNUMBER ':' tUNUMBER o_zone_offset */ +#line 390 "sys-utils/hwclock-parse-date.y" + { + set_hhmmss (pc, (yyvsp[-3].textintval).value, (yyvsp[-1].textintval).value, 0, 0); + pc->meridian = MER24; + } +#line 1672 "sys-utils/hwclock-parse-date.c" + break; + + case 24: /* iso_8601_time: tUNUMBER ':' tUNUMBER ':' unsigned_seconds o_zone_offset */ +#line 394 "sys-utils/hwclock-parse-date.y" + { + set_hhmmss (pc, (yyvsp[-5].textintval).value, (yyvsp[-3].textintval).value, (yyvsp[-1].timespec).tv_sec, (yyvsp[-1].timespec).tv_nsec); + pc->meridian = MER24; + } +#line 1681 "sys-utils/hwclock-parse-date.c" + break; + + case 27: /* zone_offset: tSNUMBER o_colon_minutes */ +#line 406 "sys-utils/hwclock-parse-date.y" + { + pc->zones_seen++; + if (! time_zone_hhmm (pc, (yyvsp[-1].textintval), (yyvsp[0].textintval))) YYABORT; + } +#line 1690 "sys-utils/hwclock-parse-date.c" + break; + + case 28: /* local_zone: tLOCAL_ZONE */ +#line 431 "sys-utils/hwclock-parse-date.y" + { + pc->local_isdst = (yyvsp[0].intval); + pc->dsts_seen += (0 < (yyvsp[0].intval)); + } +#line 1699 "sys-utils/hwclock-parse-date.c" + break; + + case 29: /* local_zone: tLOCAL_ZONE tDST */ +#line 435 "sys-utils/hwclock-parse-date.y" + { + pc->local_isdst = 1; + pc->dsts_seen += (0 < (yyvsp[-1].intval)) + 1; + } +#line 1708 "sys-utils/hwclock-parse-date.c" + break; + + case 30: /* zone: tZONE */ +#line 446 "sys-utils/hwclock-parse-date.y" + { + pc->time_zone = (yyvsp[0].intval); + } +#line 1716 "sys-utils/hwclock-parse-date.c" + break; + + case 31: /* zone: 'T' */ +#line 449 "sys-utils/hwclock-parse-date.y" + { + pc->time_zone = HOUR(7); + } +#line 1724 "sys-utils/hwclock-parse-date.c" + break; + + case 32: /* zone: tZONE relunit_snumber */ +#line 452 "sys-utils/hwclock-parse-date.y" + { + pc->time_zone = (yyvsp[-1].intval); + apply_relative_time (pc, (yyvsp[0].rel), 1); + } +#line 1733 "sys-utils/hwclock-parse-date.c" + break; + + case 33: /* zone: 'T' relunit_snumber */ +#line 456 "sys-utils/hwclock-parse-date.y" + { + pc->time_zone = HOUR(7); + apply_relative_time (pc, (yyvsp[0].rel), 1); + } +#line 1742 "sys-utils/hwclock-parse-date.c" + break; + + case 34: /* zone: tZONE tSNUMBER o_colon_minutes */ +#line 460 "sys-utils/hwclock-parse-date.y" + { + if (! time_zone_hhmm (pc, (yyvsp[-1].textintval), (yyvsp[0].textintval))) YYABORT; + pc->time_zone += (yyvsp[-2].intval); + } +#line 1751 "sys-utils/hwclock-parse-date.c" + break; + + case 35: /* zone: tDAYZONE */ +#line 464 "sys-utils/hwclock-parse-date.y" + { + pc->time_zone = (yyvsp[0].intval) + 60; + } +#line 1759 "sys-utils/hwclock-parse-date.c" + break; + + case 36: /* zone: tZONE tDST */ +#line 467 "sys-utils/hwclock-parse-date.y" + { + pc->time_zone = (yyvsp[-1].intval) + 60; + } +#line 1767 "sys-utils/hwclock-parse-date.c" + break; + + case 37: /* day: tDAY */ +#line 473 "sys-utils/hwclock-parse-date.y" + { + pc->day_ordinal = 0; + pc->day_number = (yyvsp[0].intval); + } +#line 1776 "sys-utils/hwclock-parse-date.c" + break; + + case 38: /* day: tDAY ',' */ +#line 477 "sys-utils/hwclock-parse-date.y" + { + pc->day_ordinal = 0; + pc->day_number = (yyvsp[-1].intval); + } +#line 1785 "sys-utils/hwclock-parse-date.c" + break; + + case 39: /* day: tORDINAL tDAY */ +#line 481 "sys-utils/hwclock-parse-date.y" + { + pc->day_ordinal = (yyvsp[-1].intval); + pc->day_number = (yyvsp[0].intval); + } +#line 1794 "sys-utils/hwclock-parse-date.c" + break; + + case 40: /* day: tUNUMBER tDAY */ +#line 485 "sys-utils/hwclock-parse-date.y" + { + pc->day_ordinal = (yyvsp[-1].textintval).value; + pc->day_number = (yyvsp[0].intval); + } +#line 1803 "sys-utils/hwclock-parse-date.c" + break; + + case 41: /* date: tUNUMBER '/' tUNUMBER */ +#line 492 "sys-utils/hwclock-parse-date.y" + { + pc->month = (yyvsp[-2].textintval).value; + pc->day = (yyvsp[0].textintval).value; + } +#line 1812 "sys-utils/hwclock-parse-date.c" + break; + + case 42: /* date: tUNUMBER '/' tUNUMBER '/' tUNUMBER */ +#line 496 "sys-utils/hwclock-parse-date.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[-4].textintval).digits) { + pc->year = (yyvsp[-4].textintval); + pc->month = (yyvsp[-2].textintval).value; + pc->day = (yyvsp[0].textintval).value; + } else { + pc->month = (yyvsp[-4].textintval).value; + pc->day = (yyvsp[-2].textintval).value; + pc->year = (yyvsp[0].textintval); + } + } +#line 1835 "sys-utils/hwclock-parse-date.c" + break; + + case 43: /* date: tUNUMBER tMONTH tSNUMBER */ +#line 514 "sys-utils/hwclock-parse-date.y" + { + /* e.g. 17-JUN-1992. */ + pc->day = (yyvsp[-2].textintval).value; + pc->month = (yyvsp[-1].intval); + pc->year.value = -(yyvsp[0].textintval).value; + pc->year.digits = (yyvsp[0].textintval).digits; + } +#line 1847 "sys-utils/hwclock-parse-date.c" + break; + + case 44: /* date: tMONTH tSNUMBER tSNUMBER */ +#line 521 "sys-utils/hwclock-parse-date.y" + { + /* e.g. JUN-17-1992. */ + pc->month = (yyvsp[-2].intval); + pc->day = -(yyvsp[-1].textintval).value; + pc->year.value = -(yyvsp[0].textintval).value; + pc->year.digits = (yyvsp[0].textintval).digits; + } +#line 1859 "sys-utils/hwclock-parse-date.c" + break; + + case 45: /* date: tMONTH tUNUMBER */ +#line 528 "sys-utils/hwclock-parse-date.y" + { + pc->month = (yyvsp[-1].intval); + pc->day = (yyvsp[0].textintval).value; + } +#line 1868 "sys-utils/hwclock-parse-date.c" + break; + + case 46: /* date: tMONTH tUNUMBER ',' tUNUMBER */ +#line 532 "sys-utils/hwclock-parse-date.y" + { + pc->month = (yyvsp[-3].intval); + pc->day = (yyvsp[-2].textintval).value; + pc->year = (yyvsp[0].textintval); + } +#line 1878 "sys-utils/hwclock-parse-date.c" + break; + + case 47: /* date: tUNUMBER tMONTH */ +#line 537 "sys-utils/hwclock-parse-date.y" + { + pc->day = (yyvsp[-1].textintval).value; + pc->month = (yyvsp[0].intval); + } +#line 1887 "sys-utils/hwclock-parse-date.c" + break; + + case 48: /* date: tUNUMBER tMONTH tUNUMBER */ +#line 541 "sys-utils/hwclock-parse-date.y" + { + pc->day = (yyvsp[-2].textintval).value; + pc->month = (yyvsp[-1].intval); + pc->year = (yyvsp[0].textintval); + } +#line 1897 "sys-utils/hwclock-parse-date.c" + break; + + case 50: /* iso_8601_date: tUNUMBER tSNUMBER tSNUMBER */ +#line 550 "sys-utils/hwclock-parse-date.y" + { + /* ISO 8601 format.YYYY-MM-DD. */ + pc->year = (yyvsp[-2].textintval); + pc->month = -(yyvsp[-1].textintval).value; + pc->day = -(yyvsp[0].textintval).value; + } +#line 1908 "sys-utils/hwclock-parse-date.c" + break; + + case 51: /* rel: relunit tAGO */ +#line 560 "sys-utils/hwclock-parse-date.y" + { apply_relative_time (pc, (yyvsp[-1].rel), (yyvsp[0].intval)); } +#line 1914 "sys-utils/hwclock-parse-date.c" + break; + + case 52: /* rel: relunit */ +#line 562 "sys-utils/hwclock-parse-date.y" + { apply_relative_time (pc, (yyvsp[0].rel), 1); } +#line 1920 "sys-utils/hwclock-parse-date.c" + break; + + case 53: /* rel: dayshift */ +#line 564 "sys-utils/hwclock-parse-date.y" + { apply_relative_time (pc, (yyvsp[0].rel), 1); } +#line 1926 "sys-utils/hwclock-parse-date.c" + break; + + case 54: /* relunit: tORDINAL tYEAR_UNIT */ +#line 569 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[-1].intval); } +#line 1932 "sys-utils/hwclock-parse-date.c" + break; + + case 55: /* relunit: tUNUMBER tYEAR_UNIT */ +#line 571 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[-1].textintval).value; } +#line 1938 "sys-utils/hwclock-parse-date.c" + break; + + case 56: /* relunit: tYEAR_UNIT */ +#line 573 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = 1; } +#line 1944 "sys-utils/hwclock-parse-date.c" + break; + + case 57: /* relunit: tORDINAL tMONTH_UNIT */ +#line 575 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[-1].intval); } +#line 1950 "sys-utils/hwclock-parse-date.c" + break; + + case 58: /* relunit: tUNUMBER tMONTH_UNIT */ +#line 577 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[-1].textintval).value; } +#line 1956 "sys-utils/hwclock-parse-date.c" + break; + + case 59: /* relunit: tMONTH_UNIT */ +#line 579 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = 1; } +#line 1962 "sys-utils/hwclock-parse-date.c" + break; + + case 60: /* relunit: tORDINAL tDAY_UNIT */ +#line 581 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[-1].intval) * (yyvsp[0].intval); } +#line 1968 "sys-utils/hwclock-parse-date.c" + break; + + case 61: /* relunit: tUNUMBER tDAY_UNIT */ +#line 583 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[-1].textintval).value * (yyvsp[0].intval); } +#line 1974 "sys-utils/hwclock-parse-date.c" + break; + + case 62: /* relunit: tDAY_UNIT */ +#line 585 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[0].intval); } +#line 1980 "sys-utils/hwclock-parse-date.c" + break; + + case 63: /* relunit: tORDINAL tHOUR_UNIT */ +#line 587 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[-1].intval); } +#line 1986 "sys-utils/hwclock-parse-date.c" + break; + + case 64: /* relunit: tUNUMBER tHOUR_UNIT */ +#line 589 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[-1].textintval).value; } +#line 1992 "sys-utils/hwclock-parse-date.c" + break; + + case 65: /* relunit: tHOUR_UNIT */ +#line 591 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = 1; } +#line 1998 "sys-utils/hwclock-parse-date.c" + break; + + case 66: /* relunit: tORDINAL tMINUTE_UNIT */ +#line 593 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[-1].intval); } +#line 2004 "sys-utils/hwclock-parse-date.c" + break; + + case 67: /* relunit: tUNUMBER tMINUTE_UNIT */ +#line 595 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[-1].textintval).value; } +#line 2010 "sys-utils/hwclock-parse-date.c" + break; + + case 68: /* relunit: tMINUTE_UNIT */ +#line 597 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = 1; } +#line 2016 "sys-utils/hwclock-parse-date.c" + break; + + case 69: /* relunit: tORDINAL tSEC_UNIT */ +#line 599 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[-1].intval); } +#line 2022 "sys-utils/hwclock-parse-date.c" + break; + + case 70: /* relunit: tUNUMBER tSEC_UNIT */ +#line 601 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[-1].textintval).value; } +#line 2028 "sys-utils/hwclock-parse-date.c" + break; + + case 71: /* relunit: tSDECIMAL_NUMBER tSEC_UNIT */ +#line 602 "sys-utils/hwclock-parse-date.y" + { + (yyval.rel) = RELATIVE_TIME_0; + (yyval.rel).seconds = (yyvsp[-1].timespec).tv_sec; + (yyval.rel).ns = (yyvsp[-1].timespec).tv_nsec; + } +#line 2038 "sys-utils/hwclock-parse-date.c" + break; + + case 72: /* relunit: tUDECIMAL_NUMBER tSEC_UNIT */ +#line 607 "sys-utils/hwclock-parse-date.y" + { + (yyval.rel) = RELATIVE_TIME_0; + (yyval.rel).seconds = (yyvsp[-1].timespec).tv_sec; + (yyval.rel).ns = (yyvsp[-1].timespec).tv_nsec; + } +#line 2048 "sys-utils/hwclock-parse-date.c" + break; + + case 73: /* relunit: tSEC_UNIT */ +#line 613 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = 1; } +#line 2054 "sys-utils/hwclock-parse-date.c" + break; + + case 75: /* relunit_snumber: tSNUMBER tYEAR_UNIT */ +#line 619 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[-1].textintval).value; } +#line 2060 "sys-utils/hwclock-parse-date.c" + break; + + case 76: /* relunit_snumber: tSNUMBER tMONTH_UNIT */ +#line 621 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[-1].textintval).value; } +#line 2066 "sys-utils/hwclock-parse-date.c" + break; + + case 77: /* relunit_snumber: tSNUMBER tDAY_UNIT */ +#line 623 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[-1].textintval).value * (yyvsp[0].intval); } +#line 2072 "sys-utils/hwclock-parse-date.c" + break; + + case 78: /* relunit_snumber: tSNUMBER tHOUR_UNIT */ +#line 625 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[-1].textintval).value; } +#line 2078 "sys-utils/hwclock-parse-date.c" + break; + + case 79: /* relunit_snumber: tSNUMBER tMINUTE_UNIT */ +#line 627 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[-1].textintval).value; } +#line 2084 "sys-utils/hwclock-parse-date.c" + break; + + case 80: /* relunit_snumber: tSNUMBER tSEC_UNIT */ +#line 629 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[-1].textintval).value; } +#line 2090 "sys-utils/hwclock-parse-date.c" + break; + + case 81: /* dayshift: tDAY_SHIFT */ +#line 634 "sys-utils/hwclock-parse-date.y" + { (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[0].intval); } +#line 2096 "sys-utils/hwclock-parse-date.c" + break; + + case 85: /* signed_seconds: tSNUMBER */ +#line 642 "sys-utils/hwclock-parse-date.y" + { (yyval.timespec).tv_sec = (yyvsp[0].textintval).value; (yyval.timespec).tv_nsec = 0; } +#line 2102 "sys-utils/hwclock-parse-date.c" + break; + + case 87: /* unsigned_seconds: tUNUMBER */ +#line 648 "sys-utils/hwclock-parse-date.y" + { (yyval.timespec).tv_sec = (yyvsp[0].textintval).value; (yyval.timespec).tv_nsec = 0; } +#line 2108 "sys-utils/hwclock-parse-date.c" + break; + + case 88: /* number: tUNUMBER */ +#line 653 "sys-utils/hwclock-parse-date.y" + { digits_to_date_time (pc, (yyvsp[0].textintval)); } +#line 2114 "sys-utils/hwclock-parse-date.c" + break; + + case 89: /* hybrid: tUNUMBER relunit_snumber */ +#line 657 "sys-utils/hwclock-parse-date.y" + { + /** + * Hybrid all-digit and relative offset, so that we accept e.g., + * "YYYYMMDD +N days" as well as "YYYYMMDD N days". + */ + digits_to_date_time (pc, (yyvsp[-1].textintval)); + apply_relative_time (pc, (yyvsp[0].rel), 1); + } +#line 2127 "sys-utils/hwclock-parse-date.c" + break; + + case 90: /* o_colon_minutes: %empty */ +#line 669 "sys-utils/hwclock-parse-date.y" + { (yyval.textintval).value = (yyval.textintval).digits = 0; } +#line 2133 "sys-utils/hwclock-parse-date.c" + break; + + case 91: /* o_colon_minutes: ':' tUNUMBER */ +#line 670 "sys-utils/hwclock-parse-date.y" + { + (yyval.textintval) = (yyvsp[0].textintval); + } +#line 2141 "sys-utils/hwclock-parse-date.c" + break; + + +#line 2145 "sys-utils/hwclock-parse-date.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 (pc, 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, 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 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, pc); + 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 (pc, 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, pc); + } + /* 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, pc); + YYPOPSTACK (1); + } +#ifndef yyoverflow + if (yyss != yyssa) + YYSTACK_FREE (yyss); +#endif + + return yyresult; +} + +#line 675 "sys-utils/hwclock-parse-date.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_SHIFT, 1 }, + { "YESTERDAY",tDAY_SHIFT, -1 }, + { "TODAY", tDAY_SHIFT, 0 }, + { "NOW", tDAY_SHIFT, 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 }, + { "HENCE", tAGO, 1 }, + { NULL, 0, 0 } +}; + +/** + * The universal time zone table. These labels can be used even for + * timestamps that would not otherwise be valid, e.g., GMT timestamps + * 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 parse_date 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. + * + * Note 'T' is a special case, as it is used as the separator in ISO + * 8601 date and time of day representation. + */ +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", 'T', 0 }, + { "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 offset expressed as HH:MM or HHMM into an integer count of + * minutes. If hh is more than 2 digits then it is of the form HHMM and must be + * delimited; in that case 'mm' is required to be absent. Otherwise, hh and mm + * are used ('mm' contains digits that were prefixed with a colon). + * + * POSIX TZ and ISO 8601 both define the maximum offset as 24:59. POSIX also + * allows seconds, but currently the parser rejects them. Both require minutes + * to be zero padded (2 digits). ISO requires hours to be zero padded, POSIX + * does not, either is accepted; which means an invalid ISO offset could pass. + */ + +static int time_zone_hhmm(parser_control *pc, textint hh, textint mm) +{ + int h, m; + + if (hh.digits > 2 && hh.digits < 5 && mm.digits == 0) { + h = hh.value / 100; + m = hh.value % 100; + } else if (hh.digits < 3 && (mm.digits == 0 || mm.digits == 2)) { + h = hh.value; + m = hh.negative ? -mm.value : mm.value; + } else + return 0; + + if (abs(h) > 24 || abs(m) > 59) + return 0; + + pc->time_zone = h * 60 + m; + return 1; +} + +static int to_hour(intmax_t 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) +{ + intmax_t 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 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); + int years = a->tm_year - b->tm_year; + 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; + int period_found; + int abbrev; + + /* Make it uppercase. */ + for (p = word; *p; p++) + *p = c_toupper (to_uchar (*p)); + + 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 = 0, p = q = word; (*p = *q); q++) + if (*q == '.') + period_found = 1; + else + p++; + if (period_found && (tp = lookup_zone (pc, word))) + return tp; + + return NULL; +} + +static int yylex (union YYSTYPE *lvalp, parser_control *pc) +{ + unsigned char c; + size_t count; + + for (;;) { + while (c = *pc->input, c_isspace (c)) + pc->input++; + + if (c_isdigit (c) || c == '-' || c == '+') { + char const *p; + int sign; + uintmax_t value; + if (c == '-' || c == '+') { + sign = c == '-' ? -1 : 1; + while (c = *++pc->input, c_isspace (c)) + continue; + if (! c_isdigit (c)) + /* skip the '-' sign */ + continue; + } else + sign = 0; + p = pc->input; + for (value = 0; ; value *= 10) { + uintmax_t value1 = value + (c - '0'); + if (value1 < value) + return '?'; + value = value1; + c = *++p; + if (! c_isdigit (c)) + break; + if (UINTMAX_MAX / 10 < value) + return '?'; + } + if ((c == '.' || c == ',') && c_isdigit (p[1])) { + time_t s; + long ns; + int digits; + uintmax_t 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 (c_isdigit (*p)) + ns += *p++ - '0'; + } + + /* Skip excess digits, truncating toward + * -Infinity. + */ + if (sign < 0) + for (; c_isdigit (*p); p++) + if (*p != '0') { + ns++; + break; + } + while (c_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 (c_isalpha (c)) { + char buff[20]; + char *p = buff; + table const *tp; + + do { + if (p < buff + sizeof buff - 1) + *p++ = c; + c = *++pc->input; + } + while (c_isalpha (c) || c == '.'); + + *p = '\0'; + tp = lookup_word (pc, buff); + if (! tp) { + return '?'; + } + lvalp->intval = tp->value; + return tp->type; + } + + if (c != '(') + return to_uchar (*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 1 if it's OK that mktime returned T. + * It's not OK if *TM0 has out-of-range members. + */ + +static int 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 + * timestamp that happens to equal (time_t) -1, on a host that + * supports such a timestamp. + */ + tm1 = localtime (&t); + if (!tm1) + return 0; + } + + 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) + : strdup (tz)); + } + return tz; +} + +/** + * Parse a date/time string, storing the resulting time value into *result. + * The string itself is pointed to by *p. Return 1 if successful. + * *p can be an incomplete or relative time specification; if so, use + * *now as the basis for the returned time. + */ +int parse_date(struct timespec *result, char const *p, + struct timespec const *now) +{ + time_t Start; + intmax_t Start_ns; + struct tm const *tmp; + struct tm tm; + struct tm tm0; + parser_control pc; + struct timespec gettime_buffer; + unsigned char c; + int tz_was_altered = 0; + char *tz0 = NULL; + char tz0buf[TZBUFSIZE]; + int ok = 1; + struct timeval tv; + + if (! now) { + gettimeofday (&tv, NULL); + gettime_buffer.tv_sec = tv.tv_sec; + gettime_buffer.tv_nsec = tv.tv_usec * 1000; + now = &gettime_buffer; + } + + Start = now->tv_sec; + Start_ns = now->tv_nsec; + + tmp = localtime (&now->tv_sec); + if (! tmp) + return 0; + + while (c = *p, c_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 = NULL; + char tz1buf[TZBUFSIZE] = { '\0' }; + int large_tz = TZBUFSIZE < tzsize; + int setenv_ok; + + tz0 = get_tz (tz0buf); + if (!tz0) + goto fail; + + if (large_tz) { + z = tz1 = malloc (tzsize); + if (!tz1) + goto fail; + } else + z = tz1 = 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 = 1; + + p = s + 1; + while (c = *p, c_isspace (c)) + p++; + + break; + } + } + + /** + * As documented, be careful to treat the empty string just like + * a date string of "0". Without this, an empty string would be + * declared invalid when parsed during a DST transition. + */ + if (*p == '\0') + p = "0"; + + 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 = 0; + pc.rels_seen = 0; + 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 + { +# if !HAVE_DECL_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 abbreviation 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 timestamp. + */ + 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. + */ + + intmax_t time_zone = pc.time_zone; + + intmax_t abs_time_zone = time_zone < 0 + ? - time_zone : time_zone; + + intmax_t 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%jd:%02d", + &"-"[time_zone < 0], + abs_time_zone_hour, + abs_time_zone_min); + if (setenv ("TZ", tz1buf, 1) != 0) { + goto fail; + } + tz_was_altered = 1; + 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_wday != pc.day_number))); + tm.tm_isdst = -1; + Start = mktime (&tm); + if (Start == (time_t) -1) { + goto fail; + } + } + /* 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; + } + } + + /** + * The only "output" of this if-block is an updated Start value, + * so this block must follow others that clobber Start. + */ + if (pc.zones_seen) { + intmax_t 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 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. + */ + intmax_t sum_ns = pc.seconds.tv_nsec + pc.rel.ns; + intmax_t normalized_ns = (sum_ns % BILLION + BILLION) % BILLION; + time_t t0 = Start; + intmax_t d1 = 60 * 60 * pc.rel.hour; + time_t t1 = t0 + d1; + intmax_t d2 = 60 * pc.rel.minutes; + time_t t2 = t1 + d2; + time_t d3 = pc.rel.seconds; + time_t t3 = t2 + d3; + intmax_t d4 = (sum_ns - normalized_ns) / BILLION; + time_t t4 = t3 + d4; + time_t t5 = t4; + + 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)) + | (t5 != t4)) { + goto fail; + } + result->tv_sec = t5; + result->tv_nsec = normalized_ns; + } + + goto done; + + fail: + ok = 0; + done: + if (tz_was_altered) + ok &= (tz0 ? setenv ("TZ", tz0, 1) + : unsetenv ("TZ")) == 0; + if (tz0 != tz0buf) + free (tz0); + return ok; +} |