/* A Bison parser, made by GNU Bison 3.0.4. */
/* Bison implementation for Yacc-like parsers in C
Copyright (C) 1984, 1989-1990, 2000-2015 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/>. */
/* As a special exception, you may create a larger work that contains
part or all of the Bison parser skeleton and distribute that work
under terms of your choice, so long as that work isn't itself a
parser generator using the skeleton or a modified version thereof
as a parser skeleton. Alternatively, if you modify or redistribute
the parser skeleton itself, you may (at your option) remove this
special exception, which will cause the skeleton and the resulting
Bison output files to be licensed under the GNU General Public
License without this special exception.
This special exception was added by the Free Software Foundation in
version 2.2 of Bison. */
/* C LALR(1) parser skeleton written by Richard Stallman, by
simplifying the original so-called "semantic" parser. */
/* All symbols defined below should begin with yy or YY, to avoid
infringing on user name space. This should be done even for local
variables, as they might otherwise be expanded by user macros.
There are some unavoidable exceptions within include files to
define necessary library symbols; they are noted "INFRINGES ON
USER NAME SPACE" below. */
/* Identify Bison output. */
#define YYBISON 1
/* Bison version. */
#define YYBISON_VERSION "3.0.4"
/* Skeleton name. */
#define YYSKELETON_NAME "yacc.c"
/* Pure parsers. */
#define YYPURE 1
/* Push parsers. */
#define YYPUSH 0
/* Pull parsers. */
#define YYPULL 1
/* Copy the first part of user declarations. */
#line 1 "./parse-datetime.y" /* yacc.c:339 */
/* Parse a string into an internal time stamp.
Copyright (C) 1999-2000, 2002-2016 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 time stamps, and in October 2004 to support
TZ strings in dates. */
/* FIXME: Check for arithmetic overflow in all cases, not just
some of them. */
#include <config.h>
#include "parse-datetime.h"
#include "intprops.h"
#include "timespec.h"
#include "verify.h"
#include "strftime.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 <c-ctype.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "gettext.h"
#include "xalloc.h"
#define _(str) gettext (str)
/* 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
/* ISDIGIT differs from isdigit, as follows:
- Its arg may be any int or unsigned int; it need not be an unsigned char
or EOF.
- It's typically faster.
POSIX says that only '0' through '9' are digits. Prefer ISDIGIT to
isdigit unless it's important to use the locale's definition
of "digit" even when the host does not conform to POSIX. */
#define ISDIGIT(c) ((unsigned int) (c) - '0' <= 9)
/* Shift A right by B bits portably, by dividing A by 2**B and
truncating towards minus infinity. A and B should be free of side
effects, and B should be in the range 0 <= B <= INT_BITS - 2, where
INT_BITS is the number of useful bits in an int. GNU code can
assume that INT_BITS is at least 32.
ISO C99 says that A >> B is implementation-defined if A < 0. Some
implementations (e.g., UNICOS 9.0 on a Cray Y-MP EL) don't shift
right in the usual way when A < 0, so SHR falls back on division if
ordinary A >> B doesn't seem to be the usual signed shift. */
#define SHR(a, b) \
(-1 >> 1 == -1 \
? (a) >> (b) \
: (a) / (1 << (b)) - ((a) % (1 << (b)) < 0))
#define EPOCH_YEAR 1970
#define TM_YEAR_BASE 1900
#define HOUR(x) ((x) * 60)
#define STREQ(a, b) (strcmp (a, b) == 0)
/* long_time_t is a signed integer type that contains all time_t values. */
verify (TYPE_IS_INTEGER (time_t));
#if TIME_T_FITS_IN_LONG_INT
typedef long int long_time_t;
#else
typedef time_t long_time_t;
#endif
/* 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; }
static void
dbg_printf (const char *msg,...)
{
va_list args;
/* TODO: use gnulib's 'program_name' instead? */
fputs ("date: ", stderr);
va_start (args, msg);
vfprintf (stderr, msg, args);
va_end (args);
}
/* Lots of this code assumes time_t and time_t-like values fit into
long_time_t. */
verify (TYPE_MINIMUM (long_time_t) <= TYPE_MINIMUM (time_t)
&& TYPE_MAXIMUM (time_t) <= TYPE_MAXIMUM (long_time_t));
/* 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
{
bool negative;
long int value;
size_t digits;
} textint;
/* An entry in the lexical lookup table. */
typedef struct
{
char const *name;
int type;
int value;
} table;
/* Meridian: am, pm, or 24-hour style. */
enum { MERam, MERpm, MER24 };
enum { BILLION = 1000000000, LOG10_BILLION = 9 };
/* Relative times. */
typedef struct
{
/* Relative year, month, day, hour, minutes, seconds, and nanoseconds. */
long int year;
long int month;
long int day;
long int hour;
long int minutes;
long_time_t seconds;
long int ns;
} relative_time;
#if HAVE_COMPOUND_LITERALS
# define RELATIVE_TIME_0 ((relative_time) { 0, 0, 0, 0, 0, 0, 0 })
#else
static relative_time const RELATIVE_TIME_0;
#endif
/* Information passed to and from the parser. */
typedef struct
{
/* The input string remaining to be parsed. */
const char *input;
/* N, if this is the Nth Tuesday. */
long int day_ordinal;
/* Day of week; Sunday is 0. */
int day_number;
/* tm_isdst flag for the local zone. */
int local_isdst;
/* Time zone, in minutes east of UTC. */
long int time_zone;
/* Style used for time. */
int meridian;
/* Gregorian year, month, day, hour, minutes, seconds, and nanoseconds. */
textint year;
long int month;
long int day;
long int hour;
long int minutes;
struct timespec seconds; /* includes nanoseconds */
/* Relative year, month, day, hour, minutes, seconds, and nanoseconds. */
relative_time rel;
/* Presence or counts of nonterminals of various flavors parsed so far. */
bool timespec_seen;
bool rels_seen;
size_t dates_seen;
size_t days_seen;
size_t local_zones_seen;
size_t dsts_seen;
size_t times_seen;
size_t zones_seen;
/* if true, print debugging output to stderr */
bool parse_datetime_debug;
/* which of the 'seen' parts has been printed when debugging */
size_t debug_dates_seen;
size_t debug_days_seen;
size_t debug_local_zones_seen;
size_t debug_dsts_seen;
size_t debug_times_seen;
size_t debug_zones_seen;
/* true if the user specified explicit ordinal day value, */
bool debug_ordinal_day_seen;
/* the default input timezone, set by TZ value */
long int debug_default_input_timezone;
/* Table of local time zone abbreviations, terminated by a null entry. */
table local_time_zone_table[3];
} parser_control;
union YYSTYPE;
static int yylex (union YYSTYPE *, parser_control *);
static int yyerror (parser_control const *, char const *);
static long int time_zone_hhmm (parser_control *, textint, long int);
/* 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 = true;
}
/* Set PC-> hour, minutes, seconds and nanoseconds members from arguments. */
static void
set_hhmmss (parser_control *pc, long int hour, long int minutes,
time_t sec, long int nsec)
{
pc->hour = hour;
pc->minutes = minutes;
pc->seconds.tv_sec = sec;
pc->seconds.tv_nsec = nsec;
}
/* returns a textual representation of the day ordinal/number values
in the parser_control struct (e.g. 'last wed', 'this tues', 'thu') */
static const char*
str_days (parser_control *pc, char* /*output*/ buffer, size_t n)
{
/* TODO: use the relative_time_table[] for reverse lookup */
static const char* ordinal_values[] = {
"last",
"this",
"next/first",
"(SECOND)", /* SECOND is commented out in relative_time_table[] */
"third",
"fourth",
"fifth",
"sixth",
"seventh",
"eight",
"ninth",
"tenth",
"eleventh",
"twelfth"};
static const char* days_values[] = {
"Sun",
"Mon",
"Tue",
"Wed",
"Thu",
"Fri",
"Sat"
};
/* don't add an ordinal prefix if the user didn't specify it
(e.g., "this wed" vs "wed") */
if (pc->debug_ordinal_day_seen)
{
/* use word description of possible (e.g. -1 = last, 3 = third) */
if (pc->day_ordinal>=-1 && pc->day_ordinal<=12)
{
snprintf (buffer, n, "%s", ordinal_values[pc->day_ordinal + 1]);
}
else
{
snprintf (buffer, n, "%ld", pc->day_ordinal);
}
}
else
{
buffer[0] = '\0';
}
/* Add the day name */
if (pc->day_number>=0 && pc->day_number<=6)
{
size_t l = strlen (buffer);
if (l < n)
snprintf (buffer + l, n - l, "%s%s",
(l ? " " : ""), days_values[pc->day_number]);
}
else
{
/* invalid day_number value - should never happen */
}
return buffer;
}
/* debugging: print the current time in the parser_control structure.
The parser will increment "*_seen" members for those which were parsed.
This function will print only newly seen parts. */
static void
debug_print_current_time (const char* item, parser_control *pc)
{
char tmp[100] = {0};
int space = 0; /* if true, add space delimiter */
if (!pc->parse_datetime_debug)
return;
/* no newline, more items printed below */
dbg_printf (_("parsed %s part: "), item);
if (pc->dates_seen != pc->debug_dates_seen)
{
/*TODO: use pc->year.negative? */
fprintf (stderr,"(Y-M-D) %04ld-%02ld-%02ld",
pc->year.value, pc->month, pc->day);
pc->debug_dates_seen = pc->dates_seen;
space = 1;
}
if (pc->times_seen != pc->debug_times_seen)
{
if (space)
fputc (' ',stderr);
fprintf (stderr,"%02ld:%02ld:%02ld",
pc->hour, pc->minutes, pc->seconds.tv_sec);
if (pc->seconds.tv_nsec!=0)
fprintf (stderr,"%09ld", pc->seconds.tv_nsec);
if (pc->meridian==MERpm)
fputs ("pm",stderr);
pc->debug_times_seen = pc->times_seen;
space = 1;
}
if (pc->days_seen != pc->debug_days_seen)
{
if (space)
fputc (' ',stderr);
fprintf (stderr,_("%s (day ordinal=%ld number=%d)"),
str_days (pc,tmp,sizeof (tmp)),
pc->day_ordinal, pc->day_number);
pc->debug_days_seen = pc->days_seen ;
space = 1;
}
if (pc->dsts_seen != pc->debug_dsts_seen)
{
if (space)
fputc (' ',stderr);
fprintf (stderr,_("is-dst=%d"), pc->local_isdst);
pc->dsts_seen = pc->debug_dsts_seen;
space = 1;
}
/* TODO: fix incorrect display of EST=2:08h? */
if (pc->zones_seen != pc->debug_zones_seen)
{
if (space)
fputc (' ',stderr);
fprintf (stderr,_("TZ=%+03d:%02d"), (int)(pc->time_zone/60),
abs ((int)pc->time_zone%60));
pc->debug_zones_seen = pc->zones_seen;
space = 1;
}
if (pc->local_zones_seen != pc->debug_local_zones_seen)
{
if (space)
fputc (' ',stderr);
fprintf (stderr,_("Local-TZ=%+03d:%02d"), (int)(pc->time_zone/60),
abs ((int)pc->time_zone%60));
pc->debug_local_zones_seen = pc->local_zones_seen;
space = 1;
}
if (pc->timespec_seen)
{
if (space)
fputc (' ',stderr);
fprintf (stderr,_("number of seconds: %ld"), pc->seconds.tv_sec);
}
fputc ('\n', stderr);
}
/* debugging: print the current relative values. */
static void
debug_print_relative_time (const char* item, const parser_control *pc)
{
int space = 0; /* if true, add space delimiter */
if (!pc->parse_datetime_debug)
return;
/* no newline, more items printed below */
dbg_printf (_("parsed %s part: "), item);
if (pc->rel.year==0 && pc->rel.month==0 && pc->rel.day==0
&& pc->rel.hour==0 && pc->rel.minutes==00 && pc->rel.seconds == 0
&& pc->rel.ns==0)
{
/* Special case: relative time of this/today/now */
fputs (_("today/this/now\n"),stderr);
return ;
}
#define PRINT_REL_PART(x,name) \
do { \
if ( (pc->rel.x) != 0 ) \
{ \
if (space) \
fputc (' ',stderr); \
fprintf (stderr,"%+ld %s", pc->rel.x, name); \
space = 1; \
} \
} while (0)
PRINT_REL_PART (year,"year(s)");
PRINT_REL_PART (month,"month(s)");
PRINT_REL_PART (day,"day(s)");
PRINT_REL_PART (hour,"hour(s)");
PRINT_REL_PART (minutes,"minutes");
PRINT_REL_PART (seconds,"seconds");
PRINT_REL_PART (ns,"nanoseconds");
fputc ('\n',stderr);
}
#line 592 "parse-datetime.c" /* yacc.c:339 */
# ifndef YY_NULLPTR
# if defined __cplusplus && 201103L <= __cplusplus
# define YY_NULLPTR nullptr
# else
# define YY_NULLPTR 0
# endif
# endif
/* Enabling verbose error messages. */
#ifdef YYERROR_VERBOSE
# undef YYERROR_VERBOSE
# define YYERROR_VERBOSE 1
#else
# define YYERROR_VERBOSE 0
#endif
/* Debug traces. */
#ifndef YYDEBUG
# define YYDEBUG 0
#endif
#if YYDEBUG
extern int yydebug;
#endif
/* Token type. */
#ifndef YYTOKENTYPE
# define YYTOKENTYPE
enum yytokentype
{
tAGO = 258,
tDST = 259,
tYEAR_UNIT = 260,
tMONTH_UNIT = 261,
tHOUR_UNIT = 262,
tMINUTE_UNIT = 263,
tSEC_UNIT = 264,
tDAY_UNIT = 265,
tDAY_SHIFT = 266,
tDAY = 267,
tDAYZONE = 268,
tLOCAL_ZONE = 269,
tMERIDIAN = 270,
tMONTH = 271,
tORDINAL = 272,
tZONE = 273,
tSNUMBER = 274,
tUNUMBER = 275,
tSDECIMAL_NUMBER = 276,
tUDECIMAL_NUMBER = 277
};
#endif
/* Tokens. */
#define tAGO 258
#define tDST 259
#define tYEAR_UNIT 260
#define tMONTH_UNIT 261
#define tHOUR_UNIT 262
#define tMINUTE_UNIT 263
#define tSEC_UNIT 264
#define tDAY_UNIT 265
#define tDAY_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 537 "./parse-datetime.y" /* yacc.c:355 */
long int intval;
textint textintval;
struct timespec timespec;
relative_time rel;
#line 680 "parse-datetime.c" /* yacc.c:355 */
};
typedef union YYSTYPE YYSTYPE;
# define YYSTYPE_IS_TRIVIAL 1
# define YYSTYPE_IS_DECLARED 1
#endif
int yyparse (parser_control *pc);
/* Copy the second part of user declarations. */
#line 696 "parse-datetime.c" /* yacc.c:358 */
#ifdef short
# undef short
#endif
#ifdef YYTYPE_UINT8
typedef YYTYPE_UINT8 yytype_uint8;
#else
typedef unsigned char yytype_uint8;
#endif
#ifdef YYTYPE_INT8
typedef YYTYPE_INT8 yytype_int8;
#else
typedef signed char yytype_int8;
#endif
#ifdef YYTYPE_UINT16
typedef YYTYPE_UINT16 yytype_uint16;
#else
typedef unsigned short int yytype_uint16;
#endif
#ifdef YYTYPE_INT16
typedef YYTYPE_INT16 yytype_int16;
#else
typedef short int yytype_int16;
#endif
#ifndef YYSIZE_T
# ifdef __SIZE_TYPE__
# define YYSIZE_T __SIZE_TYPE__
# elif defined size_t
# define YYSIZE_T size_t
# elif ! defined YYSIZE_T
# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
# define YYSIZE_T size_t
# else
# define YYSIZE_T unsigned int
# endif
#endif
#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
#ifndef YY_
# if 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
# if (defined __GNUC__ \
&& (2 < __GNUC__ || (__GNUC__ == 2 && 96 <= __GNUC_MINOR__))) \
|| defined __SUNPRO_C && 0x5110 <= __SUNPRO_C
# define YY_ATTRIBUTE(Spec) __attribute__(Spec)
# else
# define YY_ATTRIBUTE(Spec) /* empty */
# endif
#endif
#ifndef YY_ATTRIBUTE_PURE
# define YY_ATTRIBUTE_PURE YY_ATTRIBUTE ((__pure__))
#endif
#ifndef YY_ATTRIBUTE_UNUSED
# define YY_ATTRIBUTE_UNUSED YY_ATTRIBUTE ((__unused__))
#endif
#if !defined _Noreturn \
&& (!defined __STDC_VERSION__ || __STDC_VERSION__ < 201112)
# if defined _MSC_VER && 1200 <= _MSC_VER
# define _Noreturn __declspec (noreturn)
# else
# define _Noreturn YY_ATTRIBUTE ((__noreturn__))
# endif
#endif
/* Suppress unused-variable warnings by "using" E. */
#if ! defined lint || defined __GNUC__
# define YYUSE(E) ((void) (E))
#else
# define YYUSE(E) /* empty */
#endif
#if defined __GNUC__ && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
/* Suppress an incorrect diagnostic about yylval being uninitialized. */
# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \
_Pragma ("GCC diagnostic push") \
_Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")\
_Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
# 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 yyoverflow || YYERROR_VERBOSE
/* The parser invokes alloca or malloc; define the necessary symbols. */
# ifdef YYSTACK_USE_ALLOCA
# if YYSTACK_USE_ALLOCA
# ifdef __GNUC__
# define YYSTACK_ALLOC __builtin_alloca
# elif defined __BUILTIN_VA_ARG_INCR
# include <alloca.h> /* INFRINGES ON USER NAME SPACE */
# elif defined _AIX
# define YYSTACK_ALLOC __alloca
# elif defined _MSC_VER
# include <malloc.h> /* INFRINGES ON USER NAME SPACE */
# define alloca _alloca
# else
# define YYSTACK_ALLOC alloca
# if ! defined _ALLOCA_H && ! defined 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 || YYERROR_VERBOSE */
#if (! defined yyoverflow \
&& (! defined __cplusplus \
|| (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
/* A type that is properly aligned for any stack member. */
union yyalloc
{
yytype_int16 yyss_alloc;
YYSTYPE yyvs_alloc;
};
/* The size of the maximum gap between one aligned stack and the next. */
# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
/* The size of an array large to enough to hold all stacks, each with
N elements. */
# define YYSTACK_BYTES(N) \
((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \
+ YYSTACK_GAP_MAXIMUM)
# 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 \
{ \
YYSIZE_T yynewbytes; \
YYCOPY (&yyptr->Stack_alloc, Stack, yysize); \
Stack = &yyptr->Stack_alloc; \
yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
yyptr += yynewbytes / sizeof (*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, (Count) * sizeof (*(Src)))
# else
# define YYCOPY(Dst, Src, Count) \
do \
{ \
YYSIZE_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
/* YYTRANSLATE[YYX] -- Symbol number corresponding to YYX as returned
by yylex, with out-of-bounds checking. */
#define YYUNDEFTOK 2
#define YYMAXUTOK 277
#define YYTRANSLATE(YYX) \
((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
/* YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to TOKEN-NUM
as returned by yylex, without out-of-bounds checking. */
static const yytype_uint8 yytranslate[] =
{
0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 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_uint16 yyrline[] =
{
0, 564, 564, 565, 569, 577, 579, 583, 588, 593,
598, 603, 608, 613, 617, 621, 628, 632, 636, 641,
646, 651, 655, 660, 665, 672, 674, 678, 686, 691,
701, 703, 705, 708, 711, 713, 715, 720, 725, 730,
736, 745, 750, 778, 786, 794, 799, 805, 810, 816,
820, 830, 832, 834, 839, 841, 843, 845, 847, 849,
851, 853, 855, 857, 859, 861, 863, 865, 867, 869,
871, 873, 875, 877, 879, 883, 885, 887, 889, 891,
893, 898, 902, 902, 905, 906, 911, 912, 917, 922,
933, 934
};
#endif
#if YYDEBUG || YYERROR_VERBOSE || 0
/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
First, the terminals, then, starting at YYNTOKENS, nonterminals. */
static const char *const yytname[] =
{
"$end", "error", "$undefined", "tAGO", "tDST", "tYEAR_UNIT",
"tMONTH_UNIT", "tHOUR_UNIT", "tMINUTE_UNIT", "tSEC_UNIT", "tDAY_UNIT",
"tDAY_SHIFT", "tDAY", "tDAYZONE", "tLOCAL_ZONE", "tMERIDIAN", "tMONTH",
"tORDINAL", "tZONE", "tSNUMBER", "tUNUMBER", "tSDECIMAL_NUMBER",
"tUDECIMAL_NUMBER", "'@'", "'T'", "':'", "','", "'/'", "$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
};
#endif
# ifdef YYPRINT
/* YYTOKNUM[NUM] -- (External) token number corresponding to the
(internal) symbol number NUM (which must be that of a token). */
static const yytype_uint16 yytoknum[] =
{
0, 256, 257, 258, 259, 260, 261, 262, 263, 264,
265, 266, 267, 268, 269, 270, 271, 272, 273, 274,
275, 276, 277, 64, 84, 58, 44, 47
};
# endif
#define YYPACT_NINF -93
#define yypact_value_is_default(Yystate) \
(!!((Yystate) == (-93)))
#define YYTABLE_NINF -1
#define yytable_value_is_error(Yytable_value) \
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_uint8 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[] =
{
-1, 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_uint8 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 (internal number of the) accessing
symbol of state STATE-NUM. */
static const yytype_uint8 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[YYN] -- Symbol number of symbol that rule YYN derives. */
static const yytype_uint8 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[YYN] -- Number of symbols on the right hand side of rule YYN. */
static const yytype_uint8 yyr2[] =
{
0, 2, 1, 1, 2, 0, 2, 1, 1, 1,
1, 1, 1, 1, 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
};
#define yyerrok (yyerrstatus = 0)
#define yyclearin (yychar = YYEMPTY)
#define YYEMPTY (-2)
#define YYEOF 0
#define YYACCEPT goto yyacceptlab
#define YYABORT goto yyabortlab
#define YYERROR goto yyerrorlab
#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)
/* Error token number */
#define YYTERROR 1
#define YYERRCODE 256
/* 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)
/* This macro is provided for backward compatibility. */
#ifndef YY_LOCATION_PRINT
# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
#endif
# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
do { \
if (yydebug) \
{ \
YYFPRINTF (stderr, "%s ", Title); \
yy_symbol_print (stderr, \
Type, Value, pc); \
YYFPRINTF (stderr, "\n"); \
} \
} while (0)
/*----------------------------------------.
| Print this symbol's value on YYOUTPUT. |
`----------------------------------------*/
static void
yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep, parser_control *pc)
{
FILE *yyo = yyoutput;
YYUSE (yyo);
YYUSE (pc);
if (!yyvaluep)
return;
# ifdef YYPRINT
if (yytype < YYNTOKENS)
YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
# endif
YYUSE (yytype);
}
/*--------------------------------.
| Print this symbol on YYOUTPUT. |
`--------------------------------*/
static void
yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep, parser_control *pc)
{
YYFPRINTF (yyoutput, "%s %s (",
yytype < YYNTOKENS ? "token" : "nterm", yytname[yytype]);
yy_symbol_value_print (yyoutput, yytype, yyvaluep, pc);
YYFPRINTF (yyoutput, ")");
}
/*------------------------------------------------------------------.
| yy_stack_print -- Print the state stack from its BOTTOM up to its |
| TOP (included). |
`------------------------------------------------------------------*/
static void
yy_stack_print (yytype_int16 *yybottom, yytype_int16 *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 (yytype_int16 *yyssp, YYSTYPE *yyvsp, int yyrule, parser_control *pc)
{
unsigned long int yylno = yyrline[yyrule];
int yynrhs = yyr2[yyrule];
int yyi;
YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
yyrule - 1, yylno);
/* The symbols being reduced. */
for (yyi = 0; yyi < yynrhs; yyi++)
{
YYFPRINTF (stderr, " $%d = ", yyi + 1);
yy_symbol_print (stderr,
yystos[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)
# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
# define YY_STACK_PRINT(Bottom, Top)
# define YY_REDUCE_PRINT(Rule)
#endif /* !YYDEBUG */
/* YYINITDEPTH -- initial size of the parser's stacks. */
#ifndef YYINITDEPTH
# define YYINITDEPTH 200
#endif
/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
if the built-in stack extension method is used).
Do not make this value too large; the results are undefined if
YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
evaluated with infinite-precision integer arithmetic. */
#ifndef YYMAXDEPTH
# define YYMAXDEPTH 10000
#endif
#if YYERROR_VERBOSE
# ifndef yystrlen
# if defined __GLIBC__ && defined _STRING_H
# define yystrlen strlen
# else
/* Return the length of YYSTR. */
static YYSIZE_T
yystrlen (const char *yystr)
{
YYSIZE_T yylen;
for (yylen = 0; yystr[yylen]; yylen++)
continue;
return yylen;
}
# endif
# endif
# ifndef yystpcpy
# if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
# define yystpcpy stpcpy
# else
/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
YYDEST. */
static char *
yystpcpy (char *yydest, const char *yysrc)
{
char *yyd = yydest;
const char *yys = yysrc;
while ((*yyd++ = *yys++) != '\0')
continue;
return yyd - 1;
}
# endif
# endif
# ifndef yytnamerr
/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
quotes and backslashes, so that it's suitable for yyerror. The
heuristic is that double-quoting is unnecessary unless the string
contains an apostrophe, a comma, or backslash (other than
backslash-backslash). YYSTR is taken from yytname. If YYRES is
null, do not copy; instead, return the length of what the result
would have been. */
static YYSIZE_T
yytnamerr (char *yyres, const char *yystr)
{
if (*yystr == '"')
{
YYSIZE_T yyn = 0;
char const *yyp = yystr;
for (;;)
switch (*++yyp)
{
case '\'':
case ',':
goto do_not_strip_quotes;
case '\\':
if (*++yyp != '\\')
goto do_not_strip_quotes;
/* Fall through. */
default:
if (yyres)
yyres[yyn] = *yyp;
yyn++;
break;
case '"':
if (yyres)
yyres[yyn] = '\0';
return yyn;
}
do_not_strip_quotes: ;
}
if (! yyres)
return yystrlen (yystr);
return yystpcpy (yyres, yystr) - yyres;
}
# endif
/* Copy into *YYMSG, which is of size *YYMSG_ALLOC, an error message
about the unexpected token YYTOKEN for the state stack whose top is
YYSSP.
Return 0 if *YYMSG was successfully written. Return 1 if *YYMSG is
not large enough to hold the message. In that case, also set
*YYMSG_ALLOC to the required number of bytes. Return 2 if the
required number of bytes is too large to store. */
static int
yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg,
yytype_int16 *yyssp, int yytoken)
{
YYSIZE_T yysize0 = yytnamerr (YY_NULLPTR, yytname[yytoken]);
YYSIZE_T yysize = yysize0;
enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
/* Internationalized format string. */
const char *yyformat = YY_NULLPTR;
/* Arguments of yyformat. */
char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
/* Number of reported tokens (one for the "unexpected", one per
"expected"). */
int yycount = 0;
/* There are many possibilities here to consider:
- If this state is a consistent state with a default action, then
the only way this function was invoked is if the default action
is an error action. In that case, don't check for expected
tokens because there are none.
- The only way there can be no lookahead present (in yychar) is if
this state is a consistent state with a default action. Thus,
detecting the absence of a lookahead is sufficient to determine
that there is no unexpected or expected token to report. In that
case, just report a simple "syntax error".
- Don't assume there isn't a lookahead just because this state is a
consistent state with a default action. There might have been a
previous inconsistent state, consistent state with a non-default
action, or user semantic action that manipulated yychar.
- Of course, the expected token list depends on states to have
correct lookahead information, and it depends on the parser not
to perform extra reductions after fetching a lookahead from the
scanner and before detecting a syntax error. Thus, state merging
(from LALR or IELR) and default reductions corrupt the expected
token list. However, the list is correct for canonical LR with
one exception: it will still contain any token that will not be
accepted due to an error action in a later state.
*/
if (yytoken != YYEMPTY)
{
int yyn = yypact[*yyssp];
yyarg[yycount++] = yytname[yytoken];
if (!yypact_value_is_default (yyn))
{
/* Start YYX at -YYN if negative to avoid negative indexes in
YYCHECK. In other words, skip the first -YYN actions for
this state because they are default actions. */
int yyxbegin = yyn < 0 ? -yyn : 0;
/* Stay within bounds of both yycheck and yytname. */
int yychecklim = YYLAST - yyn + 1;
int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
int yyx;
for (yyx = yyxbegin; yyx < yyxend; ++yyx)
if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR
&& !yytable_value_is_error (yytable[yyx + yyn]))
{
if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
{
yycount = 1;
yysize = yysize0;
break;
}
yyarg[yycount++] = yytname[yyx];
{
YYSIZE_T yysize1 = yysize + yytnamerr (YY_NULLPTR, yytname[yyx]);
if (! (yysize <= yysize1
&& yysize1 <= YYSTACK_ALLOC_MAXIMUM))
return 2;
yysize = yysize1;
}
}
}
}
switch (yycount)
{
# define YYCASE_(N, S) \
case N: \
yyformat = S; \
break
YYCASE_(0, YY_("syntax error"));
YYCASE_(1, YY_("syntax error, unexpected %s"));
YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s"));
YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s"));
YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s"));
YYCASE_(5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"));
# undef YYCASE_
}
{
YYSIZE_T yysize1 = yysize + yystrlen (yyformat);
if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
return 2;
yysize = yysize1;
}
if (*yymsg_alloc < yysize)
{
*yymsg_alloc = 2 * yysize;
if (! (yysize <= *yymsg_alloc
&& *yymsg_alloc <= YYSTACK_ALLOC_MAXIMUM))
*yymsg_alloc = YYSTACK_ALLOC_MAXIMUM;
return 1;
}
/* Avoid sprintf, as that infringes on the user's name space.
Don't have undefined behavior even if the translation
produced a string with the wrong number of "%s"s. */
{
char *yyp = *yymsg;
int yyi = 0;
while ((*yyp = *yyformat) != '\0')
if (*yyp == '%' && yyformat[1] == 's' && yyi < yycount)
{
yyp += yytnamerr (yyp, yyarg[yyi++]);
yyformat += 2;
}
else
{
yyp++;
yyformat++;
}
}
return 0;
}
#endif /* YYERROR_VERBOSE */
/*-----------------------------------------------.
| Release the memory associated to this symbol. |
`-----------------------------------------------*/
static void
yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep, parser_control *pc)
{
YYUSE (yyvaluep);
YYUSE (pc);
if (!yymsg)
yymsg = "Deleting";
YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
YYUSE (yytype);
YY_IGNORE_MAYBE_UNINITIALIZED_END
}
/*----------.
| yyparse. |
`----------*/
int
yyparse (parser_control *pc)
{
/* The lookahead symbol. */
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;
int yystate;
/* Number of tokens to shift before error messages enabled. */
int yyerrstatus;
/* The stacks and their tools:
'yyss': related to states.
'yyvs': related to semantic values.
Refer to the stacks through separate pointers, to allow yyoverflow
to reallocate them elsewhere. */
/* The state stack. */
yytype_int16 yyssa[YYINITDEPTH];
yytype_int16 *yyss;
yytype_int16 *yyssp;
/* The semantic value stack. */
YYSTYPE yyvsa[YYINITDEPTH];
YYSTYPE *yyvs;
YYSTYPE *yyvsp;
YYSIZE_T yystacksize;
int yyn;
int yyresult;
/* Lookahead token as an internal (translated) token number. */
int yytoken = 0;
/* The variables used to return semantic value and location from the
action routines. */
YYSTYPE yyval;
#if YYERROR_VERBOSE
/* Buffer for error messages, and its allocated size. */
char yymsgbuf[128];
char *yymsg = yymsgbuf;
YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
#endif
#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;
yyssp = yyss = yyssa;
yyvsp = yyvs = yyvsa;
yystacksize = YYINITDEPTH;
YYDPRINTF ((stderr, "Starting parse\n"));
yystate = 0;
yyerrstatus = 0;
yynerrs = 0;
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:
*yyssp = yystate;
if (yyss + yystacksize - 1 <= yyssp)
{
/* Get the current used size of the three stacks, in elements. */
YYSIZE_T yysize = yyssp - yyss + 1;
#ifdef yyoverflow
{
/* Give user a chance to reallocate the stack. Use copies of
these so that the &'s don't force the real ones into
memory. */
YYSTYPE *yyvs1 = yyvs;
yytype_int16 *yyss1 = yyss;
/* Each stack pointer address is followed by the size of the
data in use in that stack, in bytes. This used to be a
conditional around just the two extra args, but that might
be undefined if yyoverflow is a macro. */
yyoverflow (YY_("memory exhausted"),
&yyss1, yysize * sizeof (*yyssp),
&yyvs1, yysize * sizeof (*yyvsp),
&yystacksize);
yyss = yyss1;
yyvs = yyvs1;
}
#else /* no yyoverflow */
# ifndef YYSTACK_RELOCATE
goto yyexhaustedlab;
# else
/* Extend the stack our own way. */
if (YYMAXDEPTH <= yystacksize)
goto yyexhaustedlab;
yystacksize *= 2;
if (YYMAXDEPTH < yystacksize)
yystacksize = YYMAXDEPTH;
{
yytype_int16 *yyss1 = yyss;
union yyalloc *yyptr =
(union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
if (! yyptr)
goto yyexhaustedlab;
YYSTACK_RELOCATE (yyss_alloc, yyss);
YYSTACK_RELOCATE (yyvs_alloc, yyvs);
# undef YYSTACK_RELOCATE
if (yyss1 != yyssa)
YYSTACK_FREE (yyss1);
}
# endif
#endif /* no yyoverflow */
yyssp = yyss + yysize - 1;
yyvsp = yyvs + yysize - 1;
YYDPRINTF ((stderr, "Stack size increased to %lu\n",
(unsigned long int) yystacksize));
if (yyss + yystacksize - 1 <= yyssp)
YYABORT;
}
YYDPRINTF ((stderr, "Entering state %d\n", yystate));
if (yystate == YYFINAL)
YYACCEPT;
goto yybackup;
/*-----------.
| yybackup. |
`-----------*/
yybackup:
/* Do appropriate processing given the current state. Read a
lookahead token if we need one and don't already have one. */
/* First try to decide what to do without reference to lookahead token. */
yyn = yypact[yystate];
if (yypact_value_is_default (yyn))
goto yydefault;
/* Not known => get a lookahead token if don't already have one. */
/* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */
if (yychar == YYEMPTY)
{
YYDPRINTF ((stderr, "Reading a token: "));
yychar = yylex (&yylval, pc);
}
if (yychar <= YYEOF)
{
yychar = yytoken = YYEOF;
YYDPRINTF ((stderr, "Now at end of input.\n"));
}
else
{
yytoken = YYTRANSLATE (yychar);
YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
}
/* If the proper action on seeing token YYTOKEN is to reduce or to
detect an error, take that action. */
yyn += yytoken;
if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
goto yydefault;
yyn = yytable[yyn];
if (yyn <= 0)
{
if (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);
/* Discard the shifted token. */
yychar = YYEMPTY;
yystate = yyn;
YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
*++yyvsp = yylval;
YY_IGNORE_MAYBE_UNINITIALIZED_END
goto yynewstate;
/*-----------------------------------------------------------.
| yydefault -- do the default action for the current state. |
`-----------------------------------------------------------*/
yydefault:
yyn = yydefact[yystate];
if (yyn == 0)
goto yyerrlab;
goto yyreduce;
/*-----------------------------.
| yyreduce -- Do a reduction. |
`-----------------------------*/
yyreduce:
/* yyn is the number of a rule to reduce with. */
yylen = yyr2[yyn];
/* If YYLEN is nonzero, implement the default value of the action:
'$$ = $1'.
Otherwise, the following line sets YYVAL to garbage.
This behavior is undocumented and Bison
users should not rely upon it. Assigning to YYVAL
unconditionally makes the parser a bit smaller, and it avoids a
GCC warning that YYVAL may be used uninitialized. */
yyval = yyvsp[1-yylen];
YY_REDUCE_PRINT (yyn);
switch (yyn)
{
case 4:
#line 570 "./parse-datetime.y" /* yacc.c:1646 */
{
pc->seconds = (yyvsp[0].timespec);
pc->timespec_seen = true;
debug_print_current_time (_("number of seconds"), pc);
}
#line 1869 "parse-datetime.c" /* yacc.c:1646 */
break;
case 7:
#line 584 "./parse-datetime.y" /* yacc.c:1646 */
{
pc->times_seen++; pc->dates_seen++;
debug_print_current_time (_("datetime"), pc);
}
#line 1878 "parse-datetime.c" /* yacc.c:1646 */
break;
case 8:
#line 589 "./parse-datetime.y" /* yacc.c:1646 */
{
pc->times_seen++;
debug_print_current_time (_("time"), pc);
}
#line 1887 "parse-datetime.c" /* yacc.c:1646 */
break;
case 9:
#line 594 "./parse-datetime.y" /* yacc.c:1646 */
{
pc->local_zones_seen++;
debug_print_current_time (_("local_zone"), pc);
}
#line 1896 "parse-datetime.c" /* yacc.c:1646 */
break;
case 10:
#line 599 "./parse-datetime.y" /* yacc.c:1646 */
{
pc->zones_seen++;
debug_print_current_time (_("zone"), pc);
}
#line 1905 "parse-datetime.c" /* yacc.c:1646 */
break;
case 11:
#line 604 "./parse-datetime.y" /* yacc.c:1646 */
{
pc->dates_seen++;
debug_print_current_time (_("date"), pc);
}
#line 1914 "parse-datetime.c" /* yacc.c:1646 */
break;
case 12:
#line 609 "./parse-datetime.y" /* yacc.c:1646 */
{
pc->days_seen++;
debug_print_current_time (_("day"), pc);
}
#line 1923 "parse-datetime.c" /* yacc.c:1646 */
break;
case 13:
#line 614 "./parse-datetime.y" /* yacc.c:1646 */
{
debug_print_relative_time (_("relative"), pc);
}
#line 1931 "parse-datetime.c" /* yacc.c:1646 */
break;
case 14:
#line 618 "./parse-datetime.y" /* yacc.c:1646 */
{
debug_print_relative_time (_("number"), pc);
}
#line 1939 "parse-datetime.c" /* yacc.c:1646 */
break;
case 15:
#line 622 "./parse-datetime.y" /* yacc.c:1646 */
{
debug_print_relative_time (_("hybrid"), pc);
}
#line 1947 "parse-datetime.c" /* yacc.c:1646 */
break;
case 18:
#line 637 "./parse-datetime.y" /* yacc.c:1646 */
{
set_hhmmss (pc, (yyvsp[-1].textintval).value, 0, 0, 0);
pc->meridian = (yyvsp[0].intval);
}
#line 1956 "parse-datetime.c" /* yacc.c:1646 */
break;
case 19:
#line 642 "./parse-datetime.y" /* yacc.c:1646 */
{
set_hhmmss (pc, (yyvsp[-3].textintval).value, (yyvsp[-1].textintval).value, 0, 0);
pc->meridian = (yyvsp[0].intval);
}
#line 1965 "parse-datetime.c" /* yacc.c:1646 */
break;
case 20:
#line 647 "./parse-datetime.y" /* yacc.c:1646 */
{
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 1974 "parse-datetime.c" /* yacc.c:1646 */
break;
case 22:
#line 656 "./parse-datetime.y" /* yacc.c:1646 */
{
set_hhmmss (pc, (yyvsp[-1].textintval).value, 0, 0, 0);
pc->meridian = MER24;
}
#line 1983 "parse-datetime.c" /* yacc.c:1646 */
break;
case 23:
#line 661 "./parse-datetime.y" /* yacc.c:1646 */
{
set_hhmmss (pc, (yyvsp[-3].textintval).value, (yyvsp[-1].textintval).value, 0, 0);
pc->meridian = MER24;
}
#line 1992 "parse-datetime.c" /* yacc.c:1646 */
break;
case 24:
#line 666 "./parse-datetime.y" /* yacc.c:1646 */
{
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 2001 "parse-datetime.c" /* yacc.c:1646 */
break;
case 27:
#line 679 "./parse-datetime.y" /* yacc.c:1646 */
{
pc->zones_seen++;
pc->time_zone = time_zone_hhmm (pc, (yyvsp[-1].textintval), (yyvsp[0].intval));
}
#line 2010 "parse-datetime.c" /* yacc.c:1646 */
break;
case 28:
#line 687 "./parse-datetime.y" /* yacc.c:1646 */
{
pc->local_isdst = (yyvsp[0].intval);
pc->dsts_seen += (0 < (yyvsp[0].intval));
}
#line 2019 "parse-datetime.c" /* yacc.c:1646 */
break;
case 29:
#line 692 "./parse-datetime.y" /* yacc.c:1646 */
{
pc->local_isdst = 1;
pc->dsts_seen += (0 < (yyvsp[-1].intval)) + 1;
}
#line 2028 "parse-datetime.c" /* yacc.c:1646 */
break;
case 30:
#line 702 "./parse-datetime.y" /* yacc.c:1646 */
{ pc->time_zone = (yyvsp[0].intval); }
#line 2034 "parse-datetime.c" /* yacc.c:1646 */
break;
case 31:
#line 704 "./parse-datetime.y" /* yacc.c:1646 */
{ pc->time_zone = HOUR(7); }
#line 2040 "parse-datetime.c" /* yacc.c:1646 */
break;
case 32:
#line 706 "./parse-datetime.y" /* yacc.c:1646 */
{ pc->time_zone = (yyvsp[-1].intval);
apply_relative_time (pc, (yyvsp[0].rel), 1); }
#line 2047 "parse-datetime.c" /* yacc.c:1646 */
break;
case 33:
#line 709 "./parse-datetime.y" /* yacc.c:1646 */
{ pc->time_zone = HOUR(7);
apply_relative_time (pc, (yyvsp[0].rel), 1); }
#line 2054 "parse-datetime.c" /* yacc.c:1646 */
break;
case 34:
#line 712 "./parse-datetime.y" /* yacc.c:1646 */
{ pc->time_zone = (yyvsp[-2].intval) + time_zone_hhmm (pc, (yyvsp[-1].textintval), (yyvsp[0].intval)); }
#line 2060 "parse-datetime.c" /* yacc.c:1646 */
break;
case 35:
#line 714 "./parse-datetime.y" /* yacc.c:1646 */
{ pc->time_zone = (yyvsp[0].intval) + 60; }
#line 2066 "parse-datetime.c" /* yacc.c:1646 */
break;
case 36:
#line 716 "./parse-datetime.y" /* yacc.c:1646 */
{ pc->time_zone = (yyvsp[-1].intval) + 60; }
#line 2072 "parse-datetime.c" /* yacc.c:1646 */
break;
case 37:
#line 721 "./parse-datetime.y" /* yacc.c:1646 */
{
pc->day_ordinal = 0;
pc->day_number = (yyvsp[0].intval);
}
#line 2081 "parse-datetime.c" /* yacc.c:1646 */
break;
case 38:
#line 726 "./parse-datetime.y" /* yacc.c:1646 */
{
pc->day_ordinal = 0;
pc->day_number = (yyvsp[-1].intval);
}
#line 2090 "parse-datetime.c" /* yacc.c:1646 */
break;
case 39:
#line 731 "./parse-datetime.y" /* yacc.c:1646 */
{
pc->day_ordinal = (yyvsp[-1].intval);
pc->day_number = (yyvsp[0].intval);
pc->debug_ordinal_day_seen = true;
}
#line 2100 "parse-datetime.c" /* yacc.c:1646 */
break;
case 40:
#line 737 "./parse-datetime.y" /* yacc.c:1646 */
{
pc->day_ordinal = (yyvsp[-1].textintval).value;
pc->day_number = (yyvsp[0].intval);
pc->debug_ordinal_day_seen = true;
}
#line 2110 "parse-datetime.c" /* yacc.c:1646 */
break;
case 41:
#line 746 "./parse-datetime.y" /* yacc.c:1646 */
{
pc->month = (yyvsp[-2].textintval).value;
pc->day = (yyvsp[0].textintval).value;
}
#line 2119 "parse-datetime.c" /* yacc.c:1646 */
break;
case 42:
#line 751 "./parse-datetime.y" /* yacc.c:1646 */
{
/* 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)
{
if (pc->parse_datetime_debug)
dbg_printf (_("warning: value %ld has %"PRIuMAX" digits. " \
"Assuming YYYY/MM/DD\n"), (yyvsp[-4].textintval).value, (yyvsp[-4].textintval).digits);
pc->year = (yyvsp[-4].textintval);
pc->month = (yyvsp[-2].textintval).value;
pc->day = (yyvsp[0].textintval).value;
}
else
{
if (pc->parse_datetime_debug)
dbg_printf (_("warning: value %ld has less than 4 digits. " \
"Assuming MM/DD/YY[YY]\n"), (yyvsp[-4].textintval).value);
pc->month = (yyvsp[-4].textintval).value;
pc->day = (yyvsp[-2].textintval).value;
pc->year = (yyvsp[0].textintval);
}
}
#line 2151 "parse-datetime.c" /* yacc.c:1646 */
break;
case 43:
#line 779 "./parse-datetime.y" /* yacc.c:1646 */
{
/* 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 2163 "parse-datetime.c" /* yacc.c:1646 */
break;
case 44:
#line 787 "./parse-datetime.y" /* yacc.c:1646 */
{
/* 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 2175 "parse-datetime.c" /* yacc.c:1646 */
break;
case 45:
#line 795 "./parse-datetime.y" /* yacc.c:1646 */
{
pc->month = (yyvsp[-1].intval);
pc->day = (yyvsp[0].textintval).value;
}
#line 2184 "parse-datetime.c" /* yacc.c:1646 */
break;
case 46:
#line 800 "./parse-datetime.y" /* yacc.c:1646 */
{
pc->month = (yyvsp[-3].intval);
pc->day = (yyvsp[-2].textintval).value;
pc->year = (yyvsp[0].textintval);
}
#line 2194 "parse-datetime.c" /* yacc.c:1646 */
break;
case 47:
#line 806 "./parse-datetime.y" /* yacc.c:1646 */
{
pc->day = (yyvsp[-1].textintval).value;
pc->month = (yyvsp[0].intval);
}
#line 2203 "parse-datetime.c" /* yacc.c:1646 */
break;
case 48:
#line 811 "./parse-datetime.y" /* yacc.c:1646 */
{
pc->day = (yyvsp[-2].textintval).value;
pc->month = (yyvsp[-1].intval);
pc->year = (yyvsp[0].textintval);
}
#line 2213 "parse-datetime.c" /* yacc.c:1646 */
break;
case 50:
#line 821 "./parse-datetime.y" /* yacc.c:1646 */
{
/* ISO 8601 format. YYYY-MM-DD. */
pc->year = (yyvsp[-2].textintval);
pc->month = -(yyvsp[-1].textintval).value;
pc->day = -(yyvsp[0].textintval).value;
}
#line 2224 "parse-datetime.c" /* yacc.c:1646 */
break;
case 51:
#line 831 "./parse-datetime.y" /* yacc.c:1646 */
{ apply_relative_time (pc, (yyvsp[-1].rel), (yyvsp[0].intval)); }
#line 2230 "parse-datetime.c" /* yacc.c:1646 */
break;
case 52:
#line 833 "./parse-datetime.y" /* yacc.c:1646 */
{ apply_relative_time (pc, (yyvsp[0].rel), 1); }
#line 2236 "parse-datetime.c" /* yacc.c:1646 */
break;
case 53:
#line 835 "./parse-datetime.y" /* yacc.c:1646 */
{ apply_relative_time (pc, (yyvsp[0].rel), 1); }
#line 2242 "parse-datetime.c" /* yacc.c:1646 */
break;
case 54:
#line 840 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[-1].intval); }
#line 2248 "parse-datetime.c" /* yacc.c:1646 */
break;
case 55:
#line 842 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[-1].textintval).value; }
#line 2254 "parse-datetime.c" /* yacc.c:1646 */
break;
case 56:
#line 844 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = 1; }
#line 2260 "parse-datetime.c" /* yacc.c:1646 */
break;
case 57:
#line 846 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[-1].intval); }
#line 2266 "parse-datetime.c" /* yacc.c:1646 */
break;
case 58:
#line 848 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[-1].textintval).value; }
#line 2272 "parse-datetime.c" /* yacc.c:1646 */
break;
case 59:
#line 850 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = 1; }
#line 2278 "parse-datetime.c" /* yacc.c:1646 */
break;
case 60:
#line 852 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[-1].intval) * (yyvsp[0].intval); }
#line 2284 "parse-datetime.c" /* yacc.c:1646 */
break;
case 61:
#line 854 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[-1].textintval).value * (yyvsp[0].intval); }
#line 2290 "parse-datetime.c" /* yacc.c:1646 */
break;
case 62:
#line 856 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[0].intval); }
#line 2296 "parse-datetime.c" /* yacc.c:1646 */
break;
case 63:
#line 858 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[-1].intval); }
#line 2302 "parse-datetime.c" /* yacc.c:1646 */
break;
case 64:
#line 860 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[-1].textintval).value; }
#line 2308 "parse-datetime.c" /* yacc.c:1646 */
break;
case 65:
#line 862 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = 1; }
#line 2314 "parse-datetime.c" /* yacc.c:1646 */
break;
case 66:
#line 864 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[-1].intval); }
#line 2320 "parse-datetime.c" /* yacc.c:1646 */
break;
case 67:
#line 866 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[-1].textintval).value; }
#line 2326 "parse-datetime.c" /* yacc.c:1646 */
break;
case 68:
#line 868 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = 1; }
#line 2332 "parse-datetime.c" /* yacc.c:1646 */
break;
case 69:
#line 870 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[-1].intval); }
#line 2338 "parse-datetime.c" /* yacc.c:1646 */
break;
case 70:
#line 872 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[-1].textintval).value; }
#line 2344 "parse-datetime.c" /* yacc.c:1646 */
break;
case 71:
#line 874 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[-1].timespec).tv_sec; (yyval.rel).ns = (yyvsp[-1].timespec).tv_nsec; }
#line 2350 "parse-datetime.c" /* yacc.c:1646 */
break;
case 72:
#line 876 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[-1].timespec).tv_sec; (yyval.rel).ns = (yyvsp[-1].timespec).tv_nsec; }
#line 2356 "parse-datetime.c" /* yacc.c:1646 */
break;
case 73:
#line 878 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = 1; }
#line 2362 "parse-datetime.c" /* yacc.c:1646 */
break;
case 75:
#line 884 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[-1].textintval).value; }
#line 2368 "parse-datetime.c" /* yacc.c:1646 */
break;
case 76:
#line 886 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[-1].textintval).value; }
#line 2374 "parse-datetime.c" /* yacc.c:1646 */
break;
case 77:
#line 888 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[-1].textintval).value * (yyvsp[0].intval); }
#line 2380 "parse-datetime.c" /* yacc.c:1646 */
break;
case 78:
#line 890 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[-1].textintval).value; }
#line 2386 "parse-datetime.c" /* yacc.c:1646 */
break;
case 79:
#line 892 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[-1].textintval).value; }
#line 2392 "parse-datetime.c" /* yacc.c:1646 */
break;
case 80:
#line 894 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[-1].textintval).value; }
#line 2398 "parse-datetime.c" /* yacc.c:1646 */
break;
case 81:
#line 899 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[0].intval); }
#line 2404 "parse-datetime.c" /* yacc.c:1646 */
break;
case 85:
#line 907 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.timespec).tv_sec = (yyvsp[0].textintval).value; (yyval.timespec).tv_nsec = 0; }
#line 2410 "parse-datetime.c" /* yacc.c:1646 */
break;
case 87:
#line 913 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.timespec).tv_sec = (yyvsp[0].textintval).value; (yyval.timespec).tv_nsec = 0; }
#line 2416 "parse-datetime.c" /* yacc.c:1646 */
break;
case 88:
#line 918 "./parse-datetime.y" /* yacc.c:1646 */
{ digits_to_date_time (pc, (yyvsp[0].textintval)); }
#line 2422 "parse-datetime.c" /* yacc.c:1646 */
break;
case 89:
#line 923 "./parse-datetime.y" /* yacc.c:1646 */
{
/* 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 2433 "parse-datetime.c" /* yacc.c:1646 */
break;
case 90:
#line 933 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.intval) = -1; }
#line 2439 "parse-datetime.c" /* yacc.c:1646 */
break;
case 91:
#line 935 "./parse-datetime.y" /* yacc.c:1646 */
{ (yyval.intval) = (yyvsp[0].textintval).value; }
#line 2445 "parse-datetime.c" /* yacc.c:1646 */
break;
#line 2449 "parse-datetime.c" /* yacc.c:1646 */
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 ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
YYPOPSTACK (yylen);
yylen = 0;
YY_STACK_PRINT (yyss, yyssp);
*++yyvsp = yyval;
/* Now 'shift' the result of the reduction. Determine what state
that goes to, based on the state we popped back to and the rule
number reduced by. */
yyn = yyr1[yyn];
yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
yystate = yytable[yystate];
else
yystate = yydefgoto[yyn - YYNTOKENS];
goto yynewstate;
/*--------------------------------------.
| yyerrlab -- here on detecting error. |
`--------------------------------------*/
yyerrlab:
/* Make sure we have latest lookahead translation. See comments at
user semantic actions for why this is necessary. */
yytoken = yychar == YYEMPTY ? YYEMPTY : YYTRANSLATE (yychar);
/* If not already recovering from an error, report this error. */
if (!yyerrstatus)
{
++yynerrs;
#if ! YYERROR_VERBOSE
yyerror (pc, YY_("syntax error"));
#else
# define YYSYNTAX_ERROR yysyntax_error (&yymsg_alloc, &yymsg, \
yyssp, yytoken)
{
char const *yymsgp = YY_("syntax error");
int yysyntax_error_status;
yysyntax_error_status = YYSYNTAX_ERROR;
if (yysyntax_error_status == 0)
yymsgp = yymsg;
else if (yysyntax_error_status == 1)
{
if (yymsg != yymsgbuf)
YYSTACK_FREE (yymsg);
yymsg = (char *) YYSTACK_ALLOC (yymsg_alloc);
if (!yymsg)
{
yymsg = yymsgbuf;
yymsg_alloc = sizeof yymsgbuf;
yysyntax_error_status = 2;
}
else
{
yysyntax_error_status = YYSYNTAX_ERROR;
yymsgp = yymsg;
}
}
yyerror (pc, yymsgp);
if (yysyntax_error_status == 2)
goto yyexhaustedlab;
}
# undef YYSYNTAX_ERROR
#endif
}
if (yyerrstatus == 3)
{
/* If just tried and failed to reuse lookahead token after an
error, discard it. */
if (yychar <= YYEOF)
{
/* Return failure if at end of input. */
if (yychar == YYEOF)
YYABORT;
}
else
{
yydestruct ("Error: discarding",
yytoken, &yylval, pc);
yychar = YYEMPTY;
}
}
/* Else will try to reuse lookahead token after shifting the error
token. */
goto yyerrlab1;
/*---------------------------------------------------.
| yyerrorlab -- error raised explicitly by YYERROR. |
`---------------------------------------------------*/
yyerrorlab:
/* Pacify compilers like GCC when the user code never invokes
YYERROR and the label yyerrorlab therefore never appears in user
code. */
if (/*CONSTCOND*/ 0)
goto yyerrorlab;
/* Do not reclaim the symbols of the rule 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. */
for (;;)
{
yyn = yypact[yystate];
if (!yypact_value_is_default (yyn))
{
yyn += YYTERROR;
if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
{
yyn = yytable[yyn];
if (0 < yyn)
break;
}
}
/* Pop the current state because it cannot handle the error token. */
if (yyssp == yyss)
YYABORT;
yydestruct ("Error: popping",
yystos[yystate], yyvsp, pc);
YYPOPSTACK (1);
yystate = *yyssp;
YY_STACK_PRINT (yyss, yyssp);
}
YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
*++yyvsp = yylval;
YY_IGNORE_MAYBE_UNINITIALIZED_END
/* Shift the error token. */
YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
yystate = yyn;
goto yynewstate;
/*-------------------------------------.
| yyacceptlab -- YYACCEPT comes here. |
`-------------------------------------*/
yyacceptlab:
yyresult = 0;
goto yyreturn;
/*-----------------------------------.
| yyabortlab -- YYABORT comes here. |
`-----------------------------------*/
yyabortlab:
yyresult = 1;
goto yyreturn;
#if !defined yyoverflow || YYERROR_VERBOSE
/*-------------------------------------------------.
| yyexhaustedlab -- memory exhaustion comes here. |
`-------------------------------------------------*/
yyexhaustedlab:
yyerror (pc, YY_("memory exhausted"));
yyresult = 2;
/* Fall through. */
#endif
yyreturn:
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",
yystos[*yyssp], yyvsp, pc);
YYPOPSTACK (1);
}
#ifndef yyoverflow
if (yyss != yyssa)
YYSTACK_FREE (yyss);
#endif
#if YYERROR_VERBOSE
if (yymsg != yymsgbuf)
YYSTACK_FREE (yymsg);
#endif
return yyresult;
}
#line 938 "./parse-datetime.y" /* yacc.c:1906 */
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
time stamps that would not otherwise be valid, e.g., GMT time
stamps in London during summer. */
static table const universal_time_zone_table[] =
{
{ "GMT", tZONE, HOUR ( 0) }, /* Greenwich Mean */
{ "UT", tZONE, HOUR ( 0) }, /* Universal (Coordinated) */
{ "UTC", tZONE, HOUR ( 0) },
{ NULL, 0, 0 }
};
/* The time zone table. This table is necessarily incomplete, as time
zone abbreviations are ambiguous; e.g. Australians interpret "EST"
as Eastern time in Australia, not as US Eastern Standard Time.
You cannot rely on parse_datetime 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 zone expressed as HH:MM into an integer count of
minutes. If MM is negative, then S is of the form HHMM and needs
to be picked apart; otherwise, S is of the form HH. As specified in
http://www.opengroup.org/susv3xbd/xbd_chap08.html#tag_08_03, allow
only valid TZ range, and consider first two digits as hours, if no
minutes specified. */
static long int
time_zone_hhmm (parser_control *pc, textint s, long int mm)
{
long int n_minutes;
/* If the length of S is 1 or 2 and no minutes are specified,
interpret it as a number of hours. */
if (s.digits <= 2 && mm < 0)
s.value *= 100;
if (mm < 0)
n_minutes = (s.value / 100) * 60 + s.value % 100;
else
n_minutes = s.value * 60 + (s.negative ? -mm : mm);
/* If the absolute number of minutes is larger than 24 hours,
arrange to reject it by incrementing pc->zones_seen. Thus,
we allow only values in the range UTC-24:00 to UTC+24:00. */
if (24 * 60 < abs (n_minutes))
pc->zones_seen++;
return n_minutes;
}
static int
to_hour (long int hours, int meridian)
{
switch (meridian)
{
default: /* Pacify GCC. */
case MER24:
return 0 <= hours && hours < 24 ? hours : -1;
case MERam:
return 0 < hours && hours < 12 ? hours : hours == 12 ? 0 : -1;
case MERpm:
return 0 < hours && hours < 12 ? hours + 12 : hours == 12 ? 12 : -1;
}
}
static long int
to_year (textint textyear, bool debug)
{
long int year = textyear.value;
if (year < 0)
year = -year;
/* XPG4 suggests that years 00-68 map to 2000-2068, and
years 69-99 map to 1969-1999. */
else if (textyear.digits == 2)
{
year += year < 69 ? 2000 : 1900;
if (debug)
dbg_printf (_("warning: adjusting year value %ld to %ld\n"),
textyear.value, year);
}
return year;
}
static table const * _GL_ATTRIBUTE_PURE
lookup_zone (parser_control const *pc, char const *name)
{
table const *tp;
for (tp = universal_time_zone_table; tp->name; tp++)
if (strcmp (name, tp->name) == 0)
return tp;
/* Try local zone abbreviations before those in time_zone_table, as
the local ones are more likely to be right. */
for (tp = pc->local_time_zone_table; tp->name; tp++)
if (strcmp (name, tp->name) == 0)
return tp;
for (tp = time_zone_table; tp->name; tp++)
if (strcmp (name, tp->name) == 0)
return tp;
return NULL;
}
#if ! HAVE_TM_GMTOFF
/* Yield the difference between *A and *B,
measured in seconds, ignoring leap seconds.
The body of this function is taken directly from the GNU C Library;
see src/strftime.c. */
static long int
tm_diff (struct tm const *a, struct tm const *b)
{
/* Compute intervening leap days correctly even if year is negative.
Take care to avoid int overflow in leap day calculations. */
int a4 = SHR (a->tm_year, 2) + SHR (TM_YEAR_BASE, 2) - ! (a->tm_year & 3);
int b4 = SHR (b->tm_year, 2) + SHR (TM_YEAR_BASE, 2) - ! (b->tm_year & 3);
int a100 = a4 / 25 - (a4 % 25 < 0);
int b100 = b4 / 25 - (b4 % 25 < 0);
int a400 = SHR (a100, 2);
int b400 = SHR (b100, 2);
int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400);
long int ayear = a->tm_year;
long int years = ayear - b->tm_year;
long int days = (365 * years + intervening_leap_days
+ (a->tm_yday - b->tm_yday));
return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour))
+ (a->tm_min - b->tm_min))
+ (a->tm_sec - b->tm_sec));
}
#endif /* ! HAVE_TM_GMTOFF */
static table const *
lookup_word (parser_control const *pc, char *word)
{
char *p;
char *q;
size_t wordlen;
table const *tp;
bool period_found;
bool abbrev;
/* Make it uppercase. */
for (p = word; *p; p++)
{
unsigned char ch = *p;
*p = c_toupper (ch);
}
for (tp = meridian_table; tp->name; tp++)
if (strcmp (word, tp->name) == 0)
return tp;
/* See if we have an abbreviation for a month. */
wordlen = strlen (word);
abbrev = wordlen == 3 || (wordlen == 4 && word[3] == '.');
for (tp = month_and_day_table; tp->name; tp++)
if ((abbrev ? strncmp (word, tp->name, 3) : strcmp (word, tp->name)) == 0)
return tp;
if ((tp = lookup_zone (pc, word)))
return tp;
if (strcmp (word, dst_table[0].name) == 0)
return dst_table;
for (tp = time_units_table; tp->name; tp++)
if (strcmp (word, tp->name) == 0)
return tp;
/* Strip off any plural and try the units table again. */
if (word[wordlen - 1] == 'S')
{
word[wordlen - 1] = '\0';
for (tp = time_units_table; tp->name; tp++)
if (strcmp (word, tp->name) == 0)
return tp;
word[wordlen - 1] = 'S'; /* For "this" in relative_time_table. */
}
for (tp = relative_time_table; tp->name; tp++)
if (strcmp (word, tp->name) == 0)
return tp;
/* Military time zones. */
if (wordlen == 1)
for (tp = military_table; tp->name; tp++)
if (word[0] == tp->name[0])
return tp;
/* Drop out any periods and try the time zone table again. */
for (period_found = false, p = q = word; (*p = *q); q++)
if (*q == '.')
period_found = true;
else
p++;
if (period_found && (tp = lookup_zone (pc, word)))
return tp;
return NULL;
}
static int
yylex (union YYSTYPE *lvalp, parser_control *pc)
{
unsigned char c;
size_t count;
for (;;)
{
while (c = *pc->input, c_isspace (c))
pc->input++;
if (ISDIGIT (c) || c == '-' || c == '+')
{
char const *p;
int sign;
unsigned long int value;
if (c == '-' || c == '+')
{
sign = c == '-' ? -1 : 1;
while (c = *++pc->input, c_isspace (c))
continue;
if (! ISDIGIT (c))
/* skip the '-' sign */
continue;
}
else
sign = 0;
p = pc->input;
for (value = 0; ; value *= 10)
{
unsigned long int value1 = value + (c - '0');
if (value1 < value)
return '?';
value = value1;
c = *++p;
if (! ISDIGIT (c))
break;
if (ULONG_MAX / 10 < value)
return '?';
}
if ((c == '.' || c == ',') && ISDIGIT (p[1]))
{
time_t s;
int ns;
int digits;
unsigned long int value1;
/* Check for overflow when converting value to time_t. */
if (sign < 0)
{
s = - value;
if (0 < s)
return '?';
value1 = -s;
}
else
{
s = value;
if (s < 0)
return '?';
value1 = s;
}
if (value != value1)
return '?';
/* Accumulate fraction, to ns precision. */
p++;
ns = *p++ - '0';
for (digits = 2; digits <= LOG10_BILLION; digits++)
{
ns *= 10;
if (ISDIGIT (*p))
ns += *p++ - '0';
}
/* Skip excess digits, truncating toward -Infinity. */
if (sign < 0)
for (; ISDIGIT (*p); p++)
if (*p != '0')
{
ns++;
break;
}
while (ISDIGIT (*p))
p++;
/* Adjust to the timespec convention, which is that
tv_nsec is always a positive offset even if tv_sec is
negative. */
if (sign < 0 && ns)
{
s--;
if (! (s < 0))
return '?';
ns = BILLION - ns;
}
lvalp->timespec.tv_sec = s;
lvalp->timespec.tv_nsec = ns;
pc->input = p;
return sign ? tSDECIMAL_NUMBER : tUDECIMAL_NUMBER;
}
else
{
lvalp->textintval.negative = sign < 0;
if (sign < 0)
{
lvalp->textintval.value = - value;
if (0 < lvalp->textintval.value)
return '?';
}
else
{
lvalp->textintval.value = value;
if (lvalp->textintval.value < 0)
return '?';
}
lvalp->textintval.digits = p - pc->input;
pc->input = p;
return sign ? tSNUMBER : tUNUMBER;
}
}
if (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)
{
if (pc->parse_datetime_debug)
dbg_printf (_("error: unknown word '%s'\n"), buff);
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 _GL_UNUSED,
char const *s _GL_UNUSED)
{
return 0;
}
/* If *TM0 is the old and *TM1 is the new value of a struct tm after
passing it to mktime, return true if it's OK that mktime returned T.
It's not OK if *TM0 has out-of-range members. */
static bool
mktime_ok (struct tm const *tm0, struct tm const *tm1, time_t t)
{
if (t == (time_t) -1)
{
/* Guard against falsely reporting an error when parsing a time
stamp that happens to equal (time_t) -1, on a host that
supports such a time stamp. */
tm1 = localtime (&t);
if (!tm1)
return false;
}
return ! ((tm0->tm_sec ^ tm1->tm_sec)
| (tm0->tm_min ^ tm1->tm_min)
| (tm0->tm_hour ^ tm1->tm_hour)
| (tm0->tm_mday ^ tm1->tm_mday)
| (tm0->tm_mon ^ tm1->tm_mon)
| (tm0->tm_year ^ tm1->tm_year));
}
/* A reasonable upper bound for the size of ordinary TZ strings.
Use heap allocation if TZ's length exceeds this. */
enum { TZBUFSIZE = 100 };
/* A reasonable upper bound for the buffer used in debug print outs.
see days_to_name(), debug_strftime() and debug_mktime_not_ok() */
enum { DBGBUFSIZE = 100 };
/* Return a copy of TZ, stored in TZBUF if it fits, and heap-allocated
otherwise. */
static char *
get_tz (char tzbuf[TZBUFSIZE])
{
char *tz = getenv ("TZ");
if (tz)
{
size_t tzsize = strlen (tz) + 1;
tz = (tzsize <= TZBUFSIZE
? memcpy (tzbuf, tz, tzsize)
: xmemdup (tz, tzsize));
}
return tz;
}
/* debugging: format a 'struct tm' into a buffer, taking the parser's
timezone information into account (if pc!=NULL). */
static const char*
debug_strfdatetime (const struct tm *tm, const parser_control *pc,
char* /*output*/ buf, size_t n)
{
/* TODO:
1. find an optimal way to print date string in a clear and unambiguous
format. Currently, always add '(Y-M-D)' prefix.
Consider '2016y01m10d' or 'year(2016) month(01) day(10)'.
If the user needs debug printing, it means he/she already having
issues with the parsing - better to avoid formats that could
be mis-interpreted (e.g. just YYYY-MM-DD).
2. Can strftime be used instead?
depends if it is portable and can print invalid dates on all systems.
3. Print timezone information ?
4. Print DST information ?
5. Print nanosecond information ?
NOTE:
Printed date/time values might not be valid, e.g. '2016-02-31'
or '2016-19-2016' . These are the values as parsed from the user
string, before validation.
*/
int m = nstrftime (buf, n, "(Y-M-D) %Y-%m-%d %H:%M:%S", tm, 0, 0);
/* if parser_control information was provided (for timezone),
and there's enough space in the buffer - add timezone info */
if (pc != NULL && ((n-m)>0))
{
const long int tz = (pc->zones_seen || pc->local_zones_seen)
? pc->time_zone
: pc->debug_default_input_timezone;
snprintf (&buf[m],n-m," TZ=%+03d:%02d", (int)(tz/60), abs ((int)tz)%60);
}
return buf;
}
static const char*
debug_strfdate (const struct tm *tm, char* /*output*/ buf, size_t n)
{
snprintf (buf,n,"(Y-M-D) %04d-%02d-%02d",
tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday);
return buf;
}
static const char*
debug_strftime (const struct tm *tm, char* /*output*/ buf, size_t n)
{
snprintf (buf,n,"%02d:%02d:%02d", tm->tm_hour, tm->tm_min, tm->tm_sec);
return buf;
}
/* If 'mktime_ok()' failed, display the failed time values,
and provide possible hints. Example output:
date: error: invalid date/time value:
date: user provided time: '(Y-M-D) 2006-04-02 02:45:00'
date: normalized time: '(Y-M-D) 2006-04-02 03:45:00'
date: __
date: possible reasons:
date: non-existing due to daylight-saving time;
date: numeric values overflow;
date: missing timezone;
*/
static void
debug_mktime_not_ok (struct tm const *tm0, struct tm const *tm1,
const parser_control *pc, bool time_zone_seen)
{
/* TODO: handle t==-1 (as in 'mktime_ok') */
char tmp[DBGBUFSIZE];
int i;
const bool eq_sec = (tm0->tm_sec == tm1->tm_sec);
const bool eq_min = (tm0->tm_min == tm1->tm_min);
const bool eq_hour = (tm0->tm_hour == tm1->tm_hour);
const bool eq_mday = (tm0->tm_mday == tm1->tm_mday);
const bool eq_month = (tm0->tm_mon == tm1->tm_mon);
const bool eq_year = (tm0->tm_year == tm1->tm_year);
const bool dst_shift = eq_sec && eq_min && !eq_hour
&& eq_mday && eq_month && eq_year;
if (!pc->parse_datetime_debug)
return;
dbg_printf (_("error: invalid date/time value:\n"));
dbg_printf (_(" user provided time: '%s'\n"),
debug_strfdatetime (tm0, pc, tmp, sizeof (tmp)));
dbg_printf (_(" normalized time: '%s'\n"),
debug_strfdatetime (tm1, pc, tmp, sizeof (tmp)));
/* NOTEs: the format must be aligned with debug_strfdatetime() and the two
DEBUG statements above. this string is not translated. */
i = snprintf (tmp, sizeof(tmp),
" %4s %2s %2s %2s %2s %2s",
eq_year?"":"----", eq_month?"":"--", eq_mday?"":"--",
eq_hour?"":"--", eq_min?"":"--", eq_sec?"":"--");
/* Trim trailing whitespace */
if ((i>0) && (i<sizeof(tmp)))
{
while ((i>0) && (tmp[i-1]==' '))
--i;
tmp[i] = '\0';
}
dbg_printf ("%s\n", tmp);
dbg_printf (_(" possible reasons:\n"));
if (dst_shift)
dbg_printf (_(" non-existing due to daylight-saving time;\n"));
if (!eq_mday && !eq_month)
dbg_printf (_(" invalid day/month combination;\n"));
dbg_printf (_(" numeric values overflow;\n"));
dbg_printf (" %s\n",time_zone_seen?_("incorrect timezone")
:_("missing timezone"));
}
/* Returns the effective local timezone, in minutes. */
static long int
get_effective_timezone (void)
{
/* TODO: check for failures */
const time_t z = 0;
time_t lz ;
struct tm *ltm;
ltm = localtime (&z);
lz = timegm (ltm)/60;
return (long int)lz;
}
/* The original interface: run with debug=false */
bool
parse_datetime (struct timespec *result, char const *p,
struct timespec const *now)
{
return parse_datetime2 (result, p, now, 0);
}
/* Parse a date/time string, storing the resulting time value into *RESULT.
The string itself is pointed to by P. Return true if successful.
P can be an incomplete or relative time specification; if so, use
*NOW as the basis for the returned time. */
bool
parse_datetime2 (struct timespec *result, char const *p,
struct timespec const *now, unsigned int flags)
{
time_t Start;
long int Start_ns;
struct tm const *tmp;
struct tm tm;
struct tm tm0;
parser_control pc;
struct timespec gettime_buffer;
unsigned char c;
bool tz_was_altered = false;
char *tz0 = NULL;
char tz0buf[TZBUFSIZE];
bool ok = true;
char dbg_ord[DBGBUFSIZE];
char dbg_tm[DBGBUFSIZE];
char const *input_sentinel = p + strlen (p);
if (! now)
{
gettime (&gettime_buffer);
now = &gettime_buffer;
}
Start = now->tv_sec;
Start_ns = now->tv_nsec;
tmp = localtime (&now->tv_sec);
if (! tmp)
return false;
while (c = *p, 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;
char tz1buf[TZBUFSIZE];
bool large_tz = TZBUFSIZE < tzsize;
bool setenv_ok;
tz0 = get_tz (tz0buf);
z = tz1 = large_tz ? xmalloc (tzsize) : tz1buf;
for (s = tzbase; *s != '"'; s++)
*z++ = *(s += *s == '\\');
*z = '\0';
setenv_ok = setenv ("TZ", tz1, 1) == 0;
if (large_tz)
free (tz1);
if (!setenv_ok)
goto fail;
tz_was_altered = true;
p = s + 1;
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 = false;
pc.rels_seen = false;
pc.dates_seen = 0;
pc.days_seen = 0;
pc.times_seen = 0;
pc.local_zones_seen = 0;
pc.dsts_seen = 0;
pc.zones_seen = 0;
pc.parse_datetime_debug = (flags & PARSE_DATETIME_DEBUG)!=0;
pc.debug_dates_seen = 0;
pc.debug_days_seen = 0;
pc.debug_times_seen = 0;
pc.debug_local_zones_seen = 0;
pc.debug_dsts_seen = 0;
pc.debug_zones_seen = 0;
pc.debug_ordinal_day_seen = false;
pc.debug_default_input_timezone = 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;
}
pc.debug_default_input_timezone = get_effective_timezone ();
if (yyparse (&pc) != 0)
{
if (pc.parse_datetime_debug)
{
if (input_sentinel <= pc.input)
dbg_printf (_("error: parsing failed\n"), pc.input);
else
{
dbg_printf (_("error: parsing failed, stopped at '%s'\n"),
pc.input);
}
}
goto fail;
}
/* determine effective timezone source */
if (pc.parse_datetime_debug)
{
long int tz = pc.debug_default_input_timezone;
const char* tz_env;
const char* tz_src;
if (pc.timespec_seen)
{
tz = 0 ;
tz_src = _("'@timespec' - always UTC0");
}
else if (pc.local_zones_seen || pc.zones_seen)
{
tz = pc.time_zone;
tz_src = _("parsed date/time string");
}
else if ((tz_env = getenv("TZ")))
{
if (tz_was_altered)
{
snprintf (dbg_tm, sizeof(dbg_tm), _("TZ=\"%s\" in date string"),
tz_env);
tz_src = dbg_tm;
}
else if (STREQ(tz_env,"UTC0"))
{
/* Special case: using 'date -u' simply set TZ=UTC0 */
tz_src = _("TZ=UTC0 environment value or -u");
}
else
{
snprintf (dbg_tm, sizeof(dbg_tm),
_("TZ=\"%s\" environment value"), tz_env);
tz_src = dbg_tm;
}
}
else
{
tz_src = _("system default");
}
if (pc.parse_datetime_debug)
dbg_printf (_("input timezone: %+03d:%02d (set from %s)\n"),
(int)(tz/60), abs ((int)tz)%60, tz_src);
}
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)))
{
if (pc.parse_datetime_debug)
{
if (pc.times_seen > 1)
dbg_printf ("error: seen multiple time parts\n");
if (pc.dates_seen > 1)
dbg_printf ("error: seen multiple date parts\n");
if (pc.days_seen > 1)
dbg_printf ("error: seen multiple days parts\n");
if (pc.dsts_seen > 1)
dbg_printf ("error: seen multiple daylight-saving parts\n");
if ( (pc.local_zones_seen + pc.zones_seen) > 1)
dbg_printf ("error: seen multiple time-zone parts\n");
}
goto fail;
}
tm.tm_year = to_year (pc.year, pc.parse_datetime_debug) - 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)
{
const char* mrd = (pc.meridian==MERam)?"am":
(pc.meridian==MERpm)?"pm":"";
if (pc.parse_datetime_debug)
dbg_printf (_("error: invalid hour %ld%s\n"), pc.hour, mrd);
goto fail;
}
tm.tm_min = pc.minutes;
tm.tm_sec = pc.seconds.tv_sec;
if (pc.parse_datetime_debug)
dbg_printf (_("using %s time as starting value: '%s'\n"),
(pc.times_seen)?_("specified"):_("current"),
debug_strftime (&tm,dbg_tm,sizeof (dbg_tm)));
}
else
{
tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
pc.seconds.tv_nsec = 0;
if (pc.parse_datetime_debug)
dbg_printf ("warning: using midnight as starting time: 00:00:00\n");
}
/* Let mktime deduce tm_isdst if we have an absolute time stamp. */
if (pc.dates_seen | pc.days_seen | pc.times_seen)
tm.tm_isdst = -1;
/* But if the input explicitly specifies local time with or without
DST, give mktime that information. */
if (pc.local_zones_seen)
tm.tm_isdst = pc.local_isdst;
tm0 = tm;
Start = mktime (&tm);
if (! mktime_ok (&tm0, &tm, Start))
{
if (! pc.zones_seen)
{
debug_mktime_not_ok (&tm0, &tm, &pc, pc.zones_seen);
goto fail;
}
else
{
/* Guard against falsely reporting errors near the time_t
boundaries when parsing times in other time zones. For
example, suppose the input string "1969-12-31 23:00:00 -0100",
the current time zone is 8 hours ahead of UTC, and the min
time_t value is 1970-01-01 00:00:00 UTC. Then the min
localtime value is 1970-01-01 08:00:00, and mktime will
therefore fail on 1969-12-31 23:00:00. To work around the
problem, set the time zone to 1 hour behind UTC temporarily
by setting TZ="XXX1:00" and try mktime again. */
long int time_zone = pc.time_zone;
long int abs_time_zone = time_zone < 0 ? - time_zone : time_zone;
long int abs_time_zone_hour = abs_time_zone / 60;
int abs_time_zone_min = abs_time_zone % 60;
char tz1buf[sizeof "XXX+0:00" + TYPE_WIDTH (pc.time_zone) / 3];
if (!tz_was_altered)
tz0 = get_tz (tz0buf);
sprintf (tz1buf, "XXX%s%ld:%02d", &"-"[time_zone < 0],
abs_time_zone_hour, abs_time_zone_min);
if (setenv ("TZ", tz1buf, 1) != 0)
{
/* TODO: was warn () + print errno? */
if (pc.parse_datetime_debug)
dbg_printf (_("error: setenv('TZ','%s') failed\n"), tz1buf);
goto fail;
}
tz_was_altered = true;
tm = tm0;
Start = mktime (&tm);
if (! mktime_ok (&tm0, &tm, Start))
{
debug_mktime_not_ok (&tm0, &tm, &pc, pc.zones_seen);
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)
{
if (pc.parse_datetime_debug)
dbg_printf (_("error: day '%s' (day ordinal=%ld number=%d) " \
"resulted in an invalid date: '%s'\n"),
str_days (&pc,dbg_ord,sizeof (dbg_ord)),
pc.day_ordinal,pc.day_number,
debug_strfdatetime (&tm, &pc, dbg_tm,
sizeof (dbg_tm)));
goto fail;
}
if (pc.parse_datetime_debug)
dbg_printf (_("new start date: '%s' is '%s'\n"),
str_days (&pc,dbg_ord,sizeof (dbg_ord)),
debug_strfdatetime (&tm, &pc, dbg_tm,sizeof (dbg_tm)));
}
if (pc.parse_datetime_debug)
{
if (!pc.dates_seen && !pc.days_seen)
dbg_printf (_("using current date as starting value: '%s'\n"),
debug_strfdate (&tm,dbg_tm,sizeof (dbg_tm)));
if (pc.days_seen && pc.dates_seen)
dbg_printf (_("warning: day (%s) ignored when explicit dates " \
"are given\n"),
str_days (&pc,dbg_ord,sizeof (dbg_ord)));
dbg_printf (_("starting date/time: '%s'\n"),
debug_strfdatetime (&tm, &pc, dbg_tm,sizeof (dbg_tm)));
}
/* Add relative date. */
if (pc.rel.year | pc.rel.month | pc.rel.day)
{
if (pc.parse_datetime_debug)
{
if ((pc.rel.year != 0 || pc.rel.month !=0) && tm.tm_mday==1)
dbg_printf (_("warning: when adding relative months/years, " \
"it is recommended to specify the 15th of the " \
"months\n"));
if (pc.rel.day != 0 && tm.tm_hour==0)
dbg_printf (_("warning: when adding relative days, " \
"it is recommended to specify 12:00pm\n"));
}
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)))
{
/* TODO: what is the actual error? int-value wrap-around? */
if (pc.parse_datetime_debug)
dbg_printf (_("error: %s:%d\n"), __FILE__,__LINE__);
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)
{
if (pc.parse_datetime_debug)
dbg_printf(_("error: adding relative date resulted " \
"in an invalid date: '%s'\n"),
debug_strfdatetime (&tm, &pc, dbg_tm,
sizeof (dbg_tm)));
goto fail;
}
if (pc.parse_datetime_debug)
{
dbg_printf (_("after date adjustment " \
"(%+ld years, %+ld months, %+ld days),\n"),
pc.rel.year, pc.rel.month, pc.rel.day);
dbg_printf (_(" new date/time = '%s'\n"),
debug_strfdatetime (&tm, &pc, dbg_tm,
sizeof (dbg_tm)));
}
}
/* 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)
{
long int delta = pc.time_zone * 60;
time_t t1;
#ifdef HAVE_TM_GMTOFF
delta -= tm.tm_gmtoff;
#else
time_t t = Start;
struct tm const *gmt = gmtime (&t);
if (! gmt)
{
/* TODO: use 'warn(3)' + print errno ? */
if (pc.parse_datetime_debug)
dbg_printf (_("error: gmtime failed for t=%ld\n"),t);
goto fail;
}
delta -= tm_diff (&tm, gmt);
#endif
t1 = Start - delta;
if ((Start < t1) != (delta < 0))
{
if (pc.parse_datetime_debug)
dbg_printf (_("error: timezone %ld caused time_t overflow\n"),
pc.time_zone);
goto fail; /* time_t overflow */
}
Start = t1;
}
if (pc.parse_datetime_debug)
dbg_printf (_("'%s' = %ld epoch-seconds\n"),
debug_strfdatetime (&tm, &pc, dbg_tm, sizeof (dbg_tm)),
Start);
/* Add relative hours, minutes, and seconds. On hosts that support
leap seconds, ignore the possibility of leap seconds; e.g.,
"+ 10 minutes" adds 600 seconds, even if one of them is a
leap second. Typically this is not what the user wants, but it's
too hard to do it the other way, because the time zone indicator
must be applied before relative times, and if mktime is applied
again the time zone will be lost. */
{
long int sum_ns = pc.seconds.tv_nsec + pc.rel.ns;
long int normalized_ns = (sum_ns % BILLION + BILLION) % BILLION;
time_t t0 = Start;
long int d1 = 60 * 60 * pc.rel.hour;
time_t t1 = t0 + d1;
long int d2 = 60 * pc.rel.minutes;
time_t t2 = t1 + d2;
long_time_t d3 = pc.rel.seconds;
long_time_t t3 = t2 + d3;
long int d4 = (sum_ns - normalized_ns) / BILLION;
long_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))
{
if (pc.parse_datetime_debug)
dbg_printf (_("error: adding relative time caused an " \
"overflow\n"));
goto fail;
}
if (pc.parse_datetime_debug
&& (pc.rel.hour | pc.rel.minutes | pc.rel.seconds | pc.rel.ns))
{
dbg_printf (_("after time adjustment (%+ld hours, " \
"%+ld minutes, %+ld seconds, %+ld ns),\n"),
pc.rel.hour,pc.rel.minutes,pc.rel.seconds,pc.rel.ns);
dbg_printf (_(" new time = %ld epoch-seconds\n"),t5);
}
result->tv_sec = t5;
result->tv_nsec = normalized_ns;
}
}
goto done;
fail:
ok = false;
done:
if (tz_was_altered)
ok &= (tz0 ? setenv ("TZ", tz0, 1) : unsetenv ("TZ")) == 0;
if (tz0 != tz0buf)
free (tz0);
if (ok && pc.parse_datetime_debug)
{
/* print local timezone AFTER restoring TZ (if tz_was_altered)*/
const long int otz = get_effective_timezone ();
const char* tz_src;
const char* tz_env;
if ((tz_env = getenv("TZ")))
{
/* Special case: using 'date -u' simply set TZ=UTC0 */
if (STREQ(tz_env,"UTC0"))
{
tz_src = _("TZ=UTC0 environment value or -u");
}
else
{
snprintf (dbg_tm, sizeof(dbg_tm),
_("TZ=\"%s\" environment value"), tz_env);
tz_src = dbg_tm;
}
}
else
{
tz_src = _("system default");
}
if (pc.parse_datetime_debug)
{
dbg_printf (_("output timezone: %+03d:%02d (set from %s)\n"),
(int)(otz/60), abs ((int)otz)%60, tz_src);
dbg_printf (_("final: %ld.%09ld (epoch-seconds)\n"),
result->tv_sec,result->tv_nsec);
struct tm const *gmt = gmtime (&result->tv_sec);
dbg_printf (_("final: %s (UTC0)\n"),
debug_strfdatetime (gmt, NULL, dbg_tm, sizeof (dbg_tm)));
struct tm const *lmt = localtime (&result->tv_sec);
dbg_printf (_("final: %s (output timezone TZ=%+03d:%02d)\n"),
debug_strfdatetime (lmt, NULL, dbg_tm, sizeof (dbg_tm)),
(int)(otz/60), abs ((int)otz)%60);
}
}
return ok;
}
#if TEST
int
main (int ac, char **av)
{
char buff[BUFSIZ];
printf ("Enter date, or blank line to exit.\n\t> ");
fflush (stdout);
buff[BUFSIZ - 1] = '\0';
while (fgets (buff, BUFSIZ - 1, stdin) && buff[0])
{
struct timespec d;
struct tm const *tm;
if (! parse_datetime (&d, buff, NULL))
printf ("Bad format - couldn't convert.\n");
else if (! (tm = localtime (&d.tv_sec)))
{
long int sec = d.tv_sec;
printf ("localtime (%ld) failed\n", sec);
}
else
{
int ns = d.tv_nsec;
printf ("%04ld-%02d-%02d %02d:%02d:%02d.%09d\n",
tm->tm_year + 1900L, tm->tm_mon + 1, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec, ns);
}
printf ("\t> ");
fflush (stdout);
}
return 0;
}
#endif /* TEST */