4146 lines
129 KiB
C
4146 lines
129 KiB
C
/* A Bison parser, made by GNU Bison 3.4.1. */
|
||
|
||
/* Bison implementation for Yacc-like parsers in C
|
||
|
||
Copyright (C) 1984, 1989-1990, 2000-2015, 2018-2019 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. */
|
||
|
||
/* Undocumented macros, especially those whose name start with YY_,
|
||
are private implementation details. Do not rely on them. */
|
||
|
||
/* Identify Bison output. */
|
||
#define YYBISON 1
|
||
|
||
/* Bison version. */
|
||
#define YYBISON_VERSION "3.4.1"
|
||
|
||
/* Skeleton name. */
|
||
#define YYSKELETON_NAME "yacc.c"
|
||
|
||
/* Pure parsers. */
|
||
#define YYPURE 1
|
||
|
||
/* Push parsers. */
|
||
#define YYPUSH 0
|
||
|
||
/* Pull parsers. */
|
||
#define YYPULL 1
|
||
|
||
|
||
|
||
|
||
/* First part of user prologue. */
|
||
#line 1 "parse-datetime.y"
|
||
|
||
/* Parse a string into an internal timestamp.
|
||
|
||
Copyright (C) 1999-2000, 2002-2020 Free Software Foundation, Inc.
|
||
|
||
This program is free software: you can redistribute it and/or modify
|
||
it under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation; either version 3 of the License, or
|
||
(at your option) any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
||
|
||
/* 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 Assaf Gordon <assafgordon@gmail.com> in 2016 to add
|
||
debug output.
|
||
|
||
Modified by Paul Eggert <eggert@twinsun.com> in 1999 to do the
|
||
right thing about local DST. Also modified by Paul Eggert
|
||
<eggert@cs.ucla.edu> in 2004 to support nanosecond-resolution
|
||
timestamps, in 2004 to support TZ strings in dates, and in 2017 to
|
||
check for integer overflow and to support longer-than-'long'
|
||
'time_t' and 'tv_nsec'. */
|
||
|
||
#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 <stdarg.h>
|
||
#include <stdio.h>
|
||
#include <stdlib.h>
|
||
#include <string.h>
|
||
|
||
#include "gettext.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
|
||
|
||
/* The __attribute__ feature is available in gcc versions 2.5 and later.
|
||
The __-protected variants of the attributes 'format' and 'printf' are
|
||
accepted by gcc versions 2.6.4 (effectively 2.7) and later.
|
||
Enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because
|
||
gnulib and libintl do '#define printf __printf__' when they override
|
||
the 'printf' function. */
|
||
#if 2 < __GNUC__ + (7 <= __GNUC_MINOR__)
|
||
# define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
|
||
#else
|
||
# define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
|
||
#endif
|
||
|
||
/* Shift A right by B bits portably, by dividing A by 2**B and
|
||
truncating towards minus infinity. A and B should be free of side
|
||
effects, and B should be in the range 0 <= B <= INT_BITS - 2, where
|
||
INT_BITS is the number of useful bits in an int. GNU code can
|
||
assume that INT_BITS is at least 32.
|
||
|
||
ISO C99 says that A >> B is implementation-defined if A < 0. Some
|
||
implementations (e.g., UNICOS 9.0 on a Cray Y-MP EL) don't shift
|
||
right in the usual way when A < 0, so SHR falls back on division if
|
||
ordinary A >> B doesn't seem to be the usual signed shift. */
|
||
#define SHR(a, b) \
|
||
(-1 >> 1 == -1 \
|
||
? (a) >> (b) \
|
||
: (a) / (1 << (b)) - ((a) % (1 << (b)) < 0))
|
||
|
||
#define HOUR(x) (60 * 60 * (x))
|
||
|
||
#define STREQ(a, b) (strcmp (a, b) == 0)
|
||
|
||
/* Verify that time_t is an integer as POSIX requires, and that every
|
||
time_t value fits in intmax_t. Please file a bug report if these
|
||
assumptions are false on your platform. */
|
||
verify (TYPE_IS_INTEGER (time_t));
|
||
verify (!TYPE_SIGNED (time_t) || INTMAX_MIN <= TYPE_MINIMUM (time_t));
|
||
verify (TYPE_MAXIMUM (time_t) <= INTMAX_MAX);
|
||
|
||
/* True if N is out of range for time_t. */
|
||
static bool
|
||
time_overflow (intmax_t n)
|
||
{
|
||
return ! ((TYPE_SIGNED (time_t) ? TYPE_MINIMUM (time_t) <= n : 0 <= n)
|
||
&& n <= TYPE_MAXIMUM (time_t));
|
||
}
|
||
|
||
/* 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 _GL_ATTRIBUTE_FORMAT ((__printf__, 1, 2))
|
||
dbg_printf (char const *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);
|
||
}
|
||
|
||
|
||
/* An integer value, and the number of digits in its textual
|
||
representation. */
|
||
typedef struct
|
||
{
|
||
bool negative;
|
||
intmax_t value;
|
||
ptrdiff_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 };
|
||
|
||
/* A reasonable upper bound for the buffer used in debug output. */
|
||
enum { DBGBUFSIZE = 100 };
|
||
|
||
enum { BILLION = 1000000000, LOG10_BILLION = 9 };
|
||
|
||
/* Relative times. */
|
||
typedef struct
|
||
{
|
||
/* Relative year, month, day, hour, minutes, seconds, and nanoseconds. */
|
||
intmax_t year;
|
||
intmax_t month;
|
||
intmax_t day;
|
||
intmax_t hour;
|
||
intmax_t minutes;
|
||
intmax_t seconds;
|
||
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. */
|
||
intmax_t day_ordinal;
|
||
|
||
/* Day of week; Sunday is 0. */
|
||
int day_number;
|
||
|
||
/* tm_isdst flag for the local zone. */
|
||
int local_isdst;
|
||
|
||
/* Time zone, in seconds east of UT. */
|
||
int time_zone;
|
||
|
||
/* Style used for time. */
|
||
int meridian;
|
||
|
||
/* Gregorian year, month, day, hour, minutes, seconds, and nanoseconds. */
|
||
textint year;
|
||
intmax_t month;
|
||
intmax_t day;
|
||
intmax_t hour;
|
||
intmax_t minutes;
|
||
struct timespec seconds; /* includes nanoseconds */
|
||
|
||
/* Relative year, month, day, hour, minutes, seconds, and nanoseconds. */
|
||
relative_time rel;
|
||
|
||
/* Presence or counts of nonterminals of various flavors parsed so far. */
|
||
bool timespec_seen;
|
||
bool rels_seen;
|
||
ptrdiff_t dates_seen;
|
||
ptrdiff_t days_seen;
|
||
ptrdiff_t local_zones_seen;
|
||
ptrdiff_t dsts_seen;
|
||
ptrdiff_t times_seen;
|
||
ptrdiff_t zones_seen;
|
||
bool year_seen;
|
||
|
||
/* Print debugging output to stderr. */
|
||
bool parse_datetime_debug;
|
||
|
||
/* Which of the 'seen' parts have been printed when debugging. */
|
||
bool debug_dates_seen;
|
||
bool debug_days_seen;
|
||
bool debug_local_zones_seen;
|
||
bool debug_times_seen;
|
||
bool debug_zones_seen;
|
||
bool debug_year_seen;
|
||
|
||
/* The user specified explicit ordinal day value. */
|
||
bool debug_ordinal_day_seen;
|
||
|
||
/* 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 bool time_zone_hhmm (parser_control *, textint, intmax_t);
|
||
|
||
/* 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_seen = true;
|
||
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). Return true
|
||
if successful, false if an overflow occurred. */
|
||
static bool
|
||
apply_relative_time (parser_control *pc, relative_time rel, int factor)
|
||
{
|
||
if (factor < 0
|
||
? (INT_SUBTRACT_WRAPV (pc->rel.ns, rel.ns, &pc->rel.ns)
|
||
| INT_SUBTRACT_WRAPV (pc->rel.seconds, rel.seconds, &pc->rel.seconds)
|
||
| INT_SUBTRACT_WRAPV (pc->rel.minutes, rel.minutes, &pc->rel.minutes)
|
||
| INT_SUBTRACT_WRAPV (pc->rel.hour, rel.hour, &pc->rel.hour)
|
||
| INT_SUBTRACT_WRAPV (pc->rel.day, rel.day, &pc->rel.day)
|
||
| INT_SUBTRACT_WRAPV (pc->rel.month, rel.month, &pc->rel.month)
|
||
| INT_SUBTRACT_WRAPV (pc->rel.year, rel.year, &pc->rel.year))
|
||
: (INT_ADD_WRAPV (pc->rel.ns, rel.ns, &pc->rel.ns)
|
||
| INT_ADD_WRAPV (pc->rel.seconds, rel.seconds, &pc->rel.seconds)
|
||
| INT_ADD_WRAPV (pc->rel.minutes, rel.minutes, &pc->rel.minutes)
|
||
| INT_ADD_WRAPV (pc->rel.hour, rel.hour, &pc->rel.hour)
|
||
| INT_ADD_WRAPV (pc->rel.day, rel.day, &pc->rel.day)
|
||
| INT_ADD_WRAPV (pc->rel.month, rel.month, &pc->rel.month)
|
||
| INT_ADD_WRAPV (pc->rel.year, rel.year, &pc->rel.year)))
|
||
return false;
|
||
pc->rels_seen = true;
|
||
return true;
|
||
}
|
||
|
||
/* Set PC-> hour, minutes, seconds and nanoseconds members from arguments. */
|
||
static void
|
||
set_hhmmss (parser_control *pc, intmax_t hour, intmax_t minutes,
|
||
time_t sec, int nsec)
|
||
{
|
||
pc->hour = hour;
|
||
pc->minutes = minutes;
|
||
pc->seconds.tv_sec = sec;
|
||
pc->seconds.tv_nsec = nsec;
|
||
}
|
||
|
||
/* Return 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 *buffer, int n)
|
||
{
|
||
/* TODO: use relative_time_table for reverse lookup. */
|
||
static char const ordinal_values[][11] = {
|
||
"last",
|
||
"this",
|
||
"next/first",
|
||
"(SECOND)", /* SECOND is commented out in relative_time_table. */
|
||
"third",
|
||
"fourth",
|
||
"fifth",
|
||
"sixth",
|
||
"seventh",
|
||
"eight",
|
||
"ninth",
|
||
"tenth",
|
||
"eleventh",
|
||
"twelfth"
|
||
};
|
||
|
||
static char const days_values[][4] = {
|
||
"Sun",
|
||
"Mon",
|
||
"Tue",
|
||
"Wed",
|
||
"Thu",
|
||
"Fri",
|
||
"Sat"
|
||
};
|
||
|
||
int len;
|
||
|
||
/* 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 if possible (e.g., -1 = last, 3 = third). */
|
||
len = (-1 <= pc->day_ordinal && pc->day_ordinal <= 12
|
||
? snprintf (buffer, n, "%s", ordinal_values[pc->day_ordinal + 1])
|
||
: snprintf (buffer, n, "%"PRIdMAX, pc->day_ordinal));
|
||
}
|
||
else
|
||
{
|
||
buffer[0] = '\0';
|
||
len = 0;
|
||
}
|
||
|
||
/* Add the day name */
|
||
if (0 <= pc->day_number && pc->day_number <= 6 && 0 <= len && len < n)
|
||
snprintf (buffer + len, n - len, &" %s"[len == 0],
|
||
days_values[pc->day_number]);
|
||
else
|
||
{
|
||
/* invalid day_number value - should never happen */
|
||
}
|
||
return buffer;
|
||
}
|
||
|
||
/* Convert a time zone to its string representation. */
|
||
|
||
enum { TIME_ZONE_BUFSIZE = INT_STRLEN_BOUND (intmax_t) + sizeof ":MM:SS" } ;
|
||
|
||
static char const *
|
||
time_zone_str (int time_zone, char time_zone_buf[TIME_ZONE_BUFSIZE])
|
||
{
|
||
char *p = time_zone_buf;
|
||
char sign = time_zone < 0 ? '-' : '+';
|
||
int hour = abs (time_zone / (60 * 60));
|
||
p += sprintf (time_zone_buf, "%c%02d", sign, hour);
|
||
int offset_from_hour = abs (time_zone % (60 * 60));
|
||
if (offset_from_hour != 0)
|
||
{
|
||
int mm = offset_from_hour / 60;
|
||
int ss = offset_from_hour % 60;
|
||
*p++ = ':';
|
||
*p++ = '0' + mm / 10;
|
||
*p++ = '0' + mm % 10;
|
||
if (ss)
|
||
{
|
||
*p++ = ':';
|
||
*p++ = '0' + ss / 10;
|
||
*p++ = '0' + ss % 10;
|
||
}
|
||
*p = '\0';
|
||
}
|
||
return time_zone_buf;
|
||
}
|
||
|
||
/* 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 (char const *item, parser_control *pc)
|
||
{
|
||
bool space = false;
|
||
|
||
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) %04"PRIdMAX"-%02"PRIdMAX"-%02"PRIdMAX,
|
||
pc->year.value, pc->month, pc->day);
|
||
pc->debug_dates_seen = true;
|
||
space = true;
|
||
}
|
||
|
||
if (pc->year_seen != pc->debug_year_seen)
|
||
{
|
||
if (space)
|
||
fputc (' ', stderr);
|
||
fprintf (stderr, _("year: %04"PRIdMAX), pc->year.value);
|
||
|
||
pc->debug_year_seen = pc->year_seen;
|
||
space = true;
|
||
}
|
||
|
||
if (pc->times_seen && !pc->debug_times_seen)
|
||
{
|
||
intmax_t sec = pc->seconds.tv_sec;
|
||
fprintf (stderr, &" %02"PRIdMAX":%02"PRIdMAX":%02"PRIdMAX[!space],
|
||
pc->hour, pc->minutes, sec);
|
||
if (pc->seconds.tv_nsec != 0)
|
||
{
|
||
int nsec = pc->seconds.tv_nsec;
|
||
fprintf (stderr, ".%09d", nsec);
|
||
}
|
||
if (pc->meridian == MERpm)
|
||
fputs ("pm", stderr);
|
||
|
||
pc->debug_times_seen = true;
|
||
space = true;
|
||
}
|
||
|
||
if (pc->days_seen && !pc->debug_days_seen)
|
||
{
|
||
if (space)
|
||
fputc (' ', stderr);
|
||
char tmp[DBGBUFSIZE];
|
||
fprintf (stderr, _("%s (day ordinal=%"PRIdMAX" number=%d)"),
|
||
str_days (pc, tmp, sizeof tmp),
|
||
pc->day_ordinal, pc->day_number);
|
||
pc->debug_days_seen = true;
|
||
space = true;
|
||
}
|
||
|
||
/* local zone strings only change the DST settings,
|
||
not the timezone value. If seen, inform about the DST. */
|
||
if (pc->local_zones_seen && !pc->debug_local_zones_seen)
|
||
{
|
||
fprintf (stderr, &" isdst=%d%s"[!space],
|
||
pc->local_isdst, pc->dsts_seen ? " DST" : "");
|
||
pc->debug_local_zones_seen = true;
|
||
space = true;
|
||
}
|
||
|
||
if (pc->zones_seen && !pc->debug_zones_seen)
|
||
{
|
||
char time_zone_buf[TIME_ZONE_BUFSIZE];
|
||
fprintf (stderr, &" UTC%s"[!space],
|
||
time_zone_str (pc->time_zone, time_zone_buf));
|
||
pc->debug_zones_seen = true;
|
||
space = true;
|
||
}
|
||
|
||
if (pc->timespec_seen)
|
||
{
|
||
intmax_t sec = pc->seconds.tv_sec;
|
||
if (space)
|
||
fputc (' ', stderr);
|
||
fprintf (stderr, _("number of seconds: %"PRIdMAX), sec);
|
||
}
|
||
|
||
fputc ('\n', stderr);
|
||
}
|
||
|
||
/* Debugging: print the current relative values. */
|
||
|
||
static bool
|
||
print_rel_part (bool space, intmax_t val, char const *name)
|
||
{
|
||
if (val == 0)
|
||
return space;
|
||
fprintf (stderr, &" %+"PRIdMAX" %s"[!space], val, name);
|
||
return true;
|
||
}
|
||
|
||
static void
|
||
debug_print_relative_time (char const *item, parser_control const *pc)
|
||
{
|
||
bool space = false;
|
||
|
||
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 == 0 && pc->rel.seconds == 0
|
||
&& pc->rel.ns == 0)
|
||
{
|
||
/* Special case: relative time of this/today/now */
|
||
fputs (_("today/this/now\n"), stderr);
|
||
return;
|
||
}
|
||
|
||
space = print_rel_part (space, pc->rel.year, "year(s)");
|
||
space = print_rel_part (space, pc->rel.month, "month(s)");
|
||
space = print_rel_part (space, pc->rel.day, "day(s)");
|
||
space = print_rel_part (space, pc->rel.hour, "hour(s)");
|
||
space = print_rel_part (space, pc->rel.minutes, "minutes");
|
||
space = print_rel_part (space, pc->rel.seconds, "seconds");
|
||
print_rel_part (space, pc->rel.ns, "nanoseconds");
|
||
|
||
fputc ('\n', stderr);
|
||
}
|
||
|
||
|
||
|
||
|
||
#line 635 "parse-datetime.tab.c"
|
||
|
||
# ifndef YY_NULLPTR
|
||
# if defined __cplusplus
|
||
# if 201103L <= __cplusplus
|
||
# define YY_NULLPTR nullptr
|
||
# else
|
||
# define YY_NULLPTR 0
|
||
# endif
|
||
# else
|
||
# define YY_NULLPTR ((void*)0)
|
||
# endif
|
||
# endif
|
||
|
||
/* Enabling verbose error messages. */
|
||
#ifdef YYERROR_VERBOSE
|
||
# undef YYERROR_VERBOSE
|
||
# define YYERROR_VERBOSE 1
|
||
#else
|
||
# define YYERROR_VERBOSE 0
|
||
#endif
|
||
|
||
/* Use api.header.include to #include this header
|
||
instead of duplicating it here. */
|
||
#ifndef YY_YY_PARSE_DATETIME_TAB_H_INCLUDED
|
||
# define YY_YY_PARSE_DATETIME_TAB_H_INCLUDED
|
||
/* 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
|
||
|
||
/* Value type. */
|
||
#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
|
||
union YYSTYPE
|
||
{
|
||
#line 576 "parse-datetime.y"
|
||
|
||
intmax_t intval;
|
||
textint textintval;
|
||
struct timespec timespec;
|
||
relative_time rel;
|
||
|
||
#line 708 "parse-datetime.tab.c"
|
||
|
||
};
|
||
typedef union YYSTYPE YYSTYPE;
|
||
# define YYSTYPE_IS_TRIVIAL 1
|
||
# define YYSTYPE_IS_DECLARED 1
|
||
#endif
|
||
|
||
|
||
|
||
int yyparse (parser_control *pc);
|
||
|
||
#endif /* !YY_YY_PARSE_DATETIME_TAB_H_INCLUDED */
|
||
|
||
|
||
|
||
#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 yytype_uint16;
|
||
#endif
|
||
|
||
#ifdef YYTYPE_INT16
|
||
typedef YYTYPE_INT16 yytype_int16;
|
||
#else
|
||
typedef short 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
|
||
# 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
|
||
|
||
/* 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__ && ! defined __ICC && 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
|
||
|
||
|
||
#define YY_ASSERT(E) ((void) (0 && (E)))
|
||
|
||
#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
|
||
|
||
#define YYUNDEFTOK 2
|
||
#define YYMAXUTOK 277
|
||
|
||
/* YYTRANSLATE(TOKEN-NUM) -- Symbol number corresponding to TOKEN-NUM
|
||
as returned by yylex, with out-of-bounds checking. */
|
||
#define YYTRANSLATE(YYX) \
|
||
((unsigned) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
|
||
|
||
/* YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to TOKEN-NUM
|
||
as returned by yylex. */
|
||
static const yytype_uint8 yytranslate[] =
|
||
{
|
||
0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
||
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
||
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
||
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
|
||
2, 2, 2, 2, 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, 603, 603, 604, 608, 616, 618, 622, 627, 632,
|
||
637, 642, 647, 652, 656, 660, 667, 671, 675, 680,
|
||
685, 690, 694, 699, 704, 711, 713, 717, 742, 744,
|
||
754, 756, 758, 763, 768, 771, 773, 778, 783, 788,
|
||
794, 803, 808, 841, 849, 857, 862, 868, 873, 879,
|
||
883, 893, 895, 897, 902, 904, 906, 908, 910, 912,
|
||
914, 917, 920, 922, 924, 926, 928, 930, 932, 934,
|
||
936, 938, 940, 942, 944, 948, 950, 952, 955, 957,
|
||
959, 964, 968, 968, 971, 972, 978, 979, 985, 990,
|
||
1001, 1002
|
||
};
|
||
#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 YYO. |
|
||
`-----------------------------------*/
|
||
|
||
static void
|
||
yy_symbol_value_print (FILE *yyo, int yytype, YYSTYPE const * const yyvaluep, parser_control *pc)
|
||
{
|
||
FILE *yyoutput = yyo;
|
||
YYUSE (yyoutput);
|
||
YYUSE (pc);
|
||
if (!yyvaluep)
|
||
return;
|
||
# ifdef YYPRINT
|
||
if (yytype < YYNTOKENS)
|
||
YYPRINT (yyo, yytoknum[yytype], *yyvaluep);
|
||
# endif
|
||
YYUSE (yytype);
|
||
}
|
||
|
||
|
||
/*---------------------------.
|
||
| Print this symbol on YYO. |
|
||
`---------------------------*/
|
||
|
||
static void
|
||
yy_symbol_print (FILE *yyo, int yytype, YYSTYPE const * const yyvaluep, parser_control *pc)
|
||
{
|
||
YYFPRINTF (yyo, "%s %s (",
|
||
yytype < YYNTOKENS ? "token" : "nterm", yytname[yytype]);
|
||
|
||
yy_symbol_value_print (yyo, yytype, yyvaluep, pc);
|
||
YYFPRINTF (yyo, ")");
|
||
}
|
||
|
||
/*------------------------------------------------------------------.
|
||
| 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 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;
|
||
else
|
||
goto append;
|
||
|
||
append:
|
||
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 (YYSIZE_T) (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)
|
||
yysize = yysize1;
|
||
else
|
||
return 2;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
switch (yycount)
|
||
{
|
||
# define YYCASE_(N, S) \
|
||
case N: \
|
||
yyformat = S; \
|
||
break
|
||
default: /* Avoid compiler warnings. */
|
||
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)
|
||
yysize = yysize1;
|
||
else
|
||
return 2;
|
||
}
|
||
|
||
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++;
|
||
|
||
|
||
/*--------------------------------------------------------------------.
|
||
| yynewstate -- set current state (the top of the stack) to yystate. |
|
||
`--------------------------------------------------------------------*/
|
||
yysetstate:
|
||
YYDPRINTF ((stderr, "Entering state %d\n", yystate));
|
||
YY_ASSERT (0 <= yystate && yystate < YYNSTATES);
|
||
*yyssp = (yytype_int16) yystate;
|
||
|
||
if (yyss + yystacksize - 1 <= yyssp)
|
||
#if !defined yyoverflow && !defined YYSTACK_RELOCATE
|
||
goto yyexhaustedlab;
|
||
#else
|
||
{
|
||
/* Get the current used size of the three stacks, in elements. */
|
||
YYSIZE_T yysize = (YYSIZE_T) (yyssp - yyss + 1);
|
||
|
||
# if defined yyoverflow
|
||
{
|
||
/* Give user a chance to reallocate the stack. Use copies of
|
||
these so that the &'s don't force the real ones into
|
||
memory. */
|
||
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 /* defined YYSTACK_RELOCATE */
|
||
/* 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
|
||
|
||
yyssp = yyss + yysize - 1;
|
||
yyvsp = yyvs + yysize - 1;
|
||
|
||
YYDPRINTF ((stderr, "Stack size increased to %lu\n",
|
||
(unsigned long) yystacksize));
|
||
|
||
if (yyss + yystacksize - 1 <= yyssp)
|
||
YYABORT;
|
||
}
|
||
#endif /* !defined yyoverflow && !defined YYSTACK_RELOCATE */
|
||
|
||
if (yystate == YYFINAL)
|
||
YYACCEPT;
|
||
|
||
goto yybackup;
|
||
|
||
|
||
/*-----------.
|
||
| yybackup. |
|
||
`-----------*/
|
||
yybackup:
|
||
/* Do appropriate processing given the current state. Read a
|
||
lookahead token if we need one and don't already have one. */
|
||
|
||
/* First try to decide what to do without reference to lookahead token. */
|
||
yyn = yypact[yystate];
|
||
if (yypact_value_is_default (yyn))
|
||
goto yydefault;
|
||
|
||
/* Not known => get a lookahead token if don't already have one. */
|
||
|
||
/* YYCHAR is either 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 609 "parse-datetime.y"
|
||
{
|
||
pc->seconds = (yyvsp[0].timespec);
|
||
pc->timespec_seen = true;
|
||
debug_print_current_time (_("number of seconds"), pc);
|
||
}
|
||
#line 1896 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 7:
|
||
#line 623 "parse-datetime.y"
|
||
{
|
||
pc->times_seen++; pc->dates_seen++;
|
||
debug_print_current_time (_("datetime"), pc);
|
||
}
|
||
#line 1905 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 8:
|
||
#line 628 "parse-datetime.y"
|
||
{
|
||
pc->times_seen++;
|
||
debug_print_current_time (_("time"), pc);
|
||
}
|
||
#line 1914 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 9:
|
||
#line 633 "parse-datetime.y"
|
||
{
|
||
pc->local_zones_seen++;
|
||
debug_print_current_time (_("local_zone"), pc);
|
||
}
|
||
#line 1923 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 10:
|
||
#line 638 "parse-datetime.y"
|
||
{
|
||
pc->zones_seen++;
|
||
debug_print_current_time (_("zone"), pc);
|
||
}
|
||
#line 1932 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 11:
|
||
#line 643 "parse-datetime.y"
|
||
{
|
||
pc->dates_seen++;
|
||
debug_print_current_time (_("date"), pc);
|
||
}
|
||
#line 1941 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 12:
|
||
#line 648 "parse-datetime.y"
|
||
{
|
||
pc->days_seen++;
|
||
debug_print_current_time (_("day"), pc);
|
||
}
|
||
#line 1950 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 13:
|
||
#line 653 "parse-datetime.y"
|
||
{
|
||
debug_print_relative_time (_("relative"), pc);
|
||
}
|
||
#line 1958 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 14:
|
||
#line 657 "parse-datetime.y"
|
||
{
|
||
debug_print_current_time (_("number"), pc);
|
||
}
|
||
#line 1966 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 15:
|
||
#line 661 "parse-datetime.y"
|
||
{
|
||
debug_print_relative_time (_("hybrid"), pc);
|
||
}
|
||
#line 1974 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 18:
|
||
#line 676 "parse-datetime.y"
|
||
{
|
||
set_hhmmss (pc, (yyvsp[-1].textintval).value, 0, 0, 0);
|
||
pc->meridian = (yyvsp[0].intval);
|
||
}
|
||
#line 1983 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 19:
|
||
#line 681 "parse-datetime.y"
|
||
{
|
||
set_hhmmss (pc, (yyvsp[-3].textintval).value, (yyvsp[-1].textintval).value, 0, 0);
|
||
pc->meridian = (yyvsp[0].intval);
|
||
}
|
||
#line 1992 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 20:
|
||
#line 686 "parse-datetime.y"
|
||
{
|
||
set_hhmmss (pc, (yyvsp[-5].textintval).value, (yyvsp[-3].textintval).value, (yyvsp[-1].timespec).tv_sec, (yyvsp[-1].timespec).tv_nsec);
|
||
pc->meridian = (yyvsp[0].intval);
|
||
}
|
||
#line 2001 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 22:
|
||
#line 695 "parse-datetime.y"
|
||
{
|
||
set_hhmmss (pc, (yyvsp[-1].textintval).value, 0, 0, 0);
|
||
pc->meridian = MER24;
|
||
}
|
||
#line 2010 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 23:
|
||
#line 700 "parse-datetime.y"
|
||
{
|
||
set_hhmmss (pc, (yyvsp[-3].textintval).value, (yyvsp[-1].textintval).value, 0, 0);
|
||
pc->meridian = MER24;
|
||
}
|
||
#line 2019 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 24:
|
||
#line 705 "parse-datetime.y"
|
||
{
|
||
set_hhmmss (pc, (yyvsp[-5].textintval).value, (yyvsp[-3].textintval).value, (yyvsp[-1].timespec).tv_sec, (yyvsp[-1].timespec).tv_nsec);
|
||
pc->meridian = MER24;
|
||
}
|
||
#line 2028 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 27:
|
||
#line 718 "parse-datetime.y"
|
||
{
|
||
pc->zones_seen++;
|
||
if (! time_zone_hhmm (pc, (yyvsp[-1].textintval), (yyvsp[0].intval))) YYABORT;
|
||
}
|
||
#line 2037 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 28:
|
||
#line 743 "parse-datetime.y"
|
||
{ pc->local_isdst = (yyvsp[0].intval); }
|
||
#line 2043 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 29:
|
||
#line 745 "parse-datetime.y"
|
||
{
|
||
pc->local_isdst = 1;
|
||
pc->dsts_seen++;
|
||
}
|
||
#line 2052 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 30:
|
||
#line 755 "parse-datetime.y"
|
||
{ pc->time_zone = (yyvsp[0].intval); }
|
||
#line 2058 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 31:
|
||
#line 757 "parse-datetime.y"
|
||
{ pc->time_zone = -HOUR (7); }
|
||
#line 2064 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 32:
|
||
#line 759 "parse-datetime.y"
|
||
{ pc->time_zone = (yyvsp[-1].intval);
|
||
if (! apply_relative_time (pc, (yyvsp[0].rel), 1)) YYABORT;
|
||
debug_print_relative_time (_("relative"), pc);
|
||
}
|
||
#line 2073 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 33:
|
||
#line 764 "parse-datetime.y"
|
||
{ pc->time_zone = -HOUR (7);
|
||
if (! apply_relative_time (pc, (yyvsp[0].rel), 1)) YYABORT;
|
||
debug_print_relative_time (_("relative"), pc);
|
||
}
|
||
#line 2082 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 34:
|
||
#line 769 "parse-datetime.y"
|
||
{ if (! time_zone_hhmm (pc, (yyvsp[-1].textintval), (yyvsp[0].intval))) YYABORT;
|
||
if (INT_ADD_WRAPV (pc->time_zone, (yyvsp[-2].intval), &pc->time_zone)) YYABORT; }
|
||
#line 2089 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 35:
|
||
#line 772 "parse-datetime.y"
|
||
{ pc->time_zone = (yyvsp[0].intval) + 60 * 60; }
|
||
#line 2095 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 36:
|
||
#line 774 "parse-datetime.y"
|
||
{ pc->time_zone = (yyvsp[-1].intval) + 60 * 60; }
|
||
#line 2101 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 37:
|
||
#line 779 "parse-datetime.y"
|
||
{
|
||
pc->day_ordinal = 0;
|
||
pc->day_number = (yyvsp[0].intval);
|
||
}
|
||
#line 2110 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 38:
|
||
#line 784 "parse-datetime.y"
|
||
{
|
||
pc->day_ordinal = 0;
|
||
pc->day_number = (yyvsp[-1].intval);
|
||
}
|
||
#line 2119 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 39:
|
||
#line 789 "parse-datetime.y"
|
||
{
|
||
pc->day_ordinal = (yyvsp[-1].intval);
|
||
pc->day_number = (yyvsp[0].intval);
|
||
pc->debug_ordinal_day_seen = true;
|
||
}
|
||
#line 2129 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 40:
|
||
#line 795 "parse-datetime.y"
|
||
{
|
||
pc->day_ordinal = (yyvsp[-1].textintval).value;
|
||
pc->day_number = (yyvsp[0].intval);
|
||
pc->debug_ordinal_day_seen = true;
|
||
}
|
||
#line 2139 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 41:
|
||
#line 804 "parse-datetime.y"
|
||
{
|
||
pc->month = (yyvsp[-2].textintval).value;
|
||
pc->day = (yyvsp[0].textintval).value;
|
||
}
|
||
#line 2148 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 42:
|
||
#line 809 "parse-datetime.y"
|
||
{
|
||
/* Interpret as YYYY/MM/DD if the first value has 4 or more digits,
|
||
otherwise as MM/DD/YY.
|
||
The goal in recognizing YYYY/MM/DD is solely to support legacy
|
||
machine-generated dates like those in an RCS log listing. If
|
||
you want portability, use the ISO 8601 format. */
|
||
if (4 <= (yyvsp[-4].textintval).digits)
|
||
{
|
||
if (pc->parse_datetime_debug)
|
||
{
|
||
intmax_t digits = (yyvsp[-4].textintval).digits;
|
||
dbg_printf (_("warning: value %"PRIdMAX" has %"PRIdMAX" digits. "
|
||
"Assuming YYYY/MM/DD\n"),
|
||
(yyvsp[-4].textintval).value, 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 %"PRIdMAX" 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 2185 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 43:
|
||
#line 842 "parse-datetime.y"
|
||
{
|
||
/* E.g., 17-JUN-1992. */
|
||
pc->day = (yyvsp[-2].textintval).value;
|
||
pc->month = (yyvsp[-1].intval);
|
||
if (INT_SUBTRACT_WRAPV (0, (yyvsp[0].textintval).value, &pc->year.value)) YYABORT;
|
||
pc->year.digits = (yyvsp[0].textintval).digits;
|
||
}
|
||
#line 2197 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 44:
|
||
#line 850 "parse-datetime.y"
|
||
{
|
||
/* E.g., JUN-17-1992. */
|
||
pc->month = (yyvsp[-2].intval);
|
||
if (INT_SUBTRACT_WRAPV (0, (yyvsp[-1].textintval).value, &pc->day)) YYABORT;
|
||
if (INT_SUBTRACT_WRAPV (0, (yyvsp[0].textintval).value, &pc->year.value)) YYABORT;
|
||
pc->year.digits = (yyvsp[0].textintval).digits;
|
||
}
|
||
#line 2209 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 45:
|
||
#line 858 "parse-datetime.y"
|
||
{
|
||
pc->month = (yyvsp[-1].intval);
|
||
pc->day = (yyvsp[0].textintval).value;
|
||
}
|
||
#line 2218 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 46:
|
||
#line 863 "parse-datetime.y"
|
||
{
|
||
pc->month = (yyvsp[-3].intval);
|
||
pc->day = (yyvsp[-2].textintval).value;
|
||
pc->year = (yyvsp[0].textintval);
|
||
}
|
||
#line 2228 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 47:
|
||
#line 869 "parse-datetime.y"
|
||
{
|
||
pc->day = (yyvsp[-1].textintval).value;
|
||
pc->month = (yyvsp[0].intval);
|
||
}
|
||
#line 2237 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 48:
|
||
#line 874 "parse-datetime.y"
|
||
{
|
||
pc->day = (yyvsp[-2].textintval).value;
|
||
pc->month = (yyvsp[-1].intval);
|
||
pc->year = (yyvsp[0].textintval);
|
||
}
|
||
#line 2247 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 50:
|
||
#line 884 "parse-datetime.y"
|
||
{
|
||
/* ISO 8601 format. YYYY-MM-DD. */
|
||
pc->year = (yyvsp[-2].textintval);
|
||
if (INT_SUBTRACT_WRAPV (0, (yyvsp[-1].textintval).value, &pc->month)) YYABORT;
|
||
if (INT_SUBTRACT_WRAPV (0, (yyvsp[0].textintval).value, &pc->day)) YYABORT;
|
||
}
|
||
#line 2258 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 51:
|
||
#line 894 "parse-datetime.y"
|
||
{ if (! apply_relative_time (pc, (yyvsp[-1].rel), (yyvsp[0].intval))) YYABORT; }
|
||
#line 2264 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 52:
|
||
#line 896 "parse-datetime.y"
|
||
{ if (! apply_relative_time (pc, (yyvsp[0].rel), 1)) YYABORT; }
|
||
#line 2270 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 53:
|
||
#line 898 "parse-datetime.y"
|
||
{ if (! apply_relative_time (pc, (yyvsp[0].rel), 1)) YYABORT; }
|
||
#line 2276 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 54:
|
||
#line 903 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[-1].intval); }
|
||
#line 2282 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 55:
|
||
#line 905 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[-1].textintval).value; }
|
||
#line 2288 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 56:
|
||
#line 907 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = 1; }
|
||
#line 2294 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 57:
|
||
#line 909 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[-1].intval); }
|
||
#line 2300 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 58:
|
||
#line 911 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[-1].textintval).value; }
|
||
#line 2306 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 59:
|
||
#line 913 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = 1; }
|
||
#line 2312 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 60:
|
||
#line 915 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0;
|
||
if (INT_MULTIPLY_WRAPV ((yyvsp[-1].intval), (yyvsp[0].intval), &(yyval.rel).day)) YYABORT; }
|
||
#line 2319 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 61:
|
||
#line 918 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0;
|
||
if (INT_MULTIPLY_WRAPV ((yyvsp[-1].textintval).value, (yyvsp[0].intval), &(yyval.rel).day)) YYABORT; }
|
||
#line 2326 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 62:
|
||
#line 921 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[0].intval); }
|
||
#line 2332 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 63:
|
||
#line 923 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[-1].intval); }
|
||
#line 2338 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 64:
|
||
#line 925 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[-1].textintval).value; }
|
||
#line 2344 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 65:
|
||
#line 927 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = 1; }
|
||
#line 2350 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 66:
|
||
#line 929 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[-1].intval); }
|
||
#line 2356 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 67:
|
||
#line 931 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[-1].textintval).value; }
|
||
#line 2362 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 68:
|
||
#line 933 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = 1; }
|
||
#line 2368 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 69:
|
||
#line 935 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[-1].intval); }
|
||
#line 2374 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 70:
|
||
#line 937 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[-1].textintval).value; }
|
||
#line 2380 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 71:
|
||
#line 939 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[-1].timespec).tv_sec; (yyval.rel).ns = (yyvsp[-1].timespec).tv_nsec; }
|
||
#line 2386 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 72:
|
||
#line 941 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[-1].timespec).tv_sec; (yyval.rel).ns = (yyvsp[-1].timespec).tv_nsec; }
|
||
#line 2392 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 73:
|
||
#line 943 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = 1; }
|
||
#line 2398 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 75:
|
||
#line 949 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).year = (yyvsp[-1].textintval).value; }
|
||
#line 2404 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 76:
|
||
#line 951 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).month = (yyvsp[-1].textintval).value; }
|
||
#line 2410 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 77:
|
||
#line 953 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0;
|
||
if (INT_MULTIPLY_WRAPV ((yyvsp[-1].textintval).value, (yyvsp[0].intval), &(yyval.rel).day)) YYABORT; }
|
||
#line 2417 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 78:
|
||
#line 956 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).hour = (yyvsp[-1].textintval).value; }
|
||
#line 2423 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 79:
|
||
#line 958 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).minutes = (yyvsp[-1].textintval).value; }
|
||
#line 2429 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 80:
|
||
#line 960 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).seconds = (yyvsp[-1].textintval).value; }
|
||
#line 2435 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 81:
|
||
#line 965 "parse-datetime.y"
|
||
{ (yyval.rel) = RELATIVE_TIME_0; (yyval.rel).day = (yyvsp[0].intval); }
|
||
#line 2441 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 85:
|
||
#line 973 "parse-datetime.y"
|
||
{ if (time_overflow ((yyvsp[0].textintval).value)) YYABORT;
|
||
(yyval.timespec).tv_sec = (yyvsp[0].textintval).value; (yyval.timespec).tv_nsec = 0; }
|
||
#line 2448 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 87:
|
||
#line 980 "parse-datetime.y"
|
||
{ if (time_overflow ((yyvsp[0].textintval).value)) YYABORT;
|
||
(yyval.timespec).tv_sec = (yyvsp[0].textintval).value; (yyval.timespec).tv_nsec = 0; }
|
||
#line 2455 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 88:
|
||
#line 986 "parse-datetime.y"
|
||
{ digits_to_date_time (pc, (yyvsp[0].textintval)); }
|
||
#line 2461 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 89:
|
||
#line 991 "parse-datetime.y"
|
||
{
|
||
/* Hybrid all-digit and relative offset, so that we accept e.g.,
|
||
"YYYYMMDD +N days" as well as "YYYYMMDD N days". */
|
||
digits_to_date_time (pc, (yyvsp[-1].textintval));
|
||
if (! apply_relative_time (pc, (yyvsp[0].rel), 1)) YYABORT;
|
||
}
|
||
#line 2472 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 90:
|
||
#line 1001 "parse-datetime.y"
|
||
{ (yyval.intval) = -1; }
|
||
#line 2478 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
case 91:
|
||
#line 1003 "parse-datetime.y"
|
||
{ (yyval.intval) = (yyvsp[0].textintval).value; }
|
||
#line 2484 "parse-datetime.tab.c"
|
||
break;
|
||
|
||
|
||
#line 2488 "parse-datetime.tab.c"
|
||
|
||
default: break;
|
||
}
|
||
/* User semantic actions sometimes alter yychar, and that requires
|
||
that yytoken be updated with the new translation. We take the
|
||
approach of translating immediately before every use of yytoken.
|
||
One alternative is translating here after every semantic action,
|
||
but that translation would be missed if the semantic action invokes
|
||
YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or
|
||
if it invokes YYBACKUP. In the case of YYABORT or YYACCEPT, an
|
||
incorrect destructor might then be invoked immediately. In the
|
||
case of YYERROR or YYBACKUP, subsequent parser actions might lead
|
||
to an incorrect destructor call or verbose syntax error message
|
||
before the lookahead is translated. */
|
||
YY_SYMBOL_PRINT ("-> $$ =", 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. */
|
||
{
|
||
const int yylhs = yyr1[yyn] - YYNTOKENS;
|
||
const int yyi = yypgoto[yylhs] + *yyssp;
|
||
yystate = (0 <= yyi && yyi <= YYLAST && yycheck[yyi] == *yyssp
|
||
? yytable[yyi]
|
||
: yydefgoto[yylhs]);
|
||
}
|
||
|
||
goto yynewstate;
|
||
|
||
|
||
/*--------------------------------------.
|
||
| yyerrlab -- here on detecting error. |
|
||
`--------------------------------------*/
|
||
yyerrlab:
|
||
/* Make sure we have latest lookahead translation. See comments at
|
||
user semantic actions for why this is necessary. */
|
||
yytoken = yychar == YYEMPTY ? 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 when the user code never invokes YYERROR and the
|
||
label yyerrorlab therefore never appears in user code. */
|
||
if (0)
|
||
YYERROR;
|
||
|
||
/* 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 -- parsing is finished, return the result. |
|
||
`-----------------------------------------------------*/
|
||
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 1006 "parse-datetime.y"
|
||
|
||
|
||
static table const meridian_table[] =
|
||
{
|
||
{ "AM", tMERIDIAN, MERam },
|
||
{ "A.M.", tMERIDIAN, MERam },
|
||
{ "PM", tMERIDIAN, MERpm },
|
||
{ "P.M.", tMERIDIAN, MERpm },
|
||
{ NULL, 0, 0 }
|
||
};
|
||
|
||
static table const dst_table[] =
|
||
{
|
||
{ "DST", tDST, 0 }
|
||
};
|
||
|
||
static table const month_and_day_table[] =
|
||
{
|
||
{ "JANUARY", tMONTH, 1 },
|
||
{ "FEBRUARY", tMONTH, 2 },
|
||
{ "MARCH", tMONTH, 3 },
|
||
{ "APRIL", tMONTH, 4 },
|
||
{ "MAY", tMONTH, 5 },
|
||
{ "JUNE", tMONTH, 6 },
|
||
{ "JULY", tMONTH, 7 },
|
||
{ "AUGUST", tMONTH, 8 },
|
||
{ "SEPTEMBER",tMONTH, 9 },
|
||
{ "SEPT", tMONTH, 9 },
|
||
{ "OCTOBER", tMONTH, 10 },
|
||
{ "NOVEMBER", tMONTH, 11 },
|
||
{ "DECEMBER", tMONTH, 12 },
|
||
{ "SUNDAY", tDAY, 0 },
|
||
{ "MONDAY", tDAY, 1 },
|
||
{ "TUESDAY", tDAY, 2 },
|
||
{ "TUES", tDAY, 2 },
|
||
{ "WEDNESDAY",tDAY, 3 },
|
||
{ "WEDNES", tDAY, 3 },
|
||
{ "THURSDAY", tDAY, 4 },
|
||
{ "THUR", tDAY, 4 },
|
||
{ "THURS", tDAY, 4 },
|
||
{ "FRIDAY", tDAY, 5 },
|
||
{ "SATURDAY", tDAY, 6 },
|
||
{ NULL, 0, 0 }
|
||
};
|
||
|
||
static table const time_units_table[] =
|
||
{
|
||
{ "YEAR", tYEAR_UNIT, 1 },
|
||
{ "MONTH", tMONTH_UNIT, 1 },
|
||
{ "FORTNIGHT",tDAY_UNIT, 14 },
|
||
{ "WEEK", tDAY_UNIT, 7 },
|
||
{ "DAY", tDAY_UNIT, 1 },
|
||
{ "HOUR", tHOUR_UNIT, 1 },
|
||
{ "MINUTE", tMINUTE_UNIT, 1 },
|
||
{ "MIN", tMINUTE_UNIT, 1 },
|
||
{ "SECOND", tSEC_UNIT, 1 },
|
||
{ "SEC", tSEC_UNIT, 1 },
|
||
{ NULL, 0, 0 }
|
||
};
|
||
|
||
/* Assorted relative-time words. */
|
||
static table const relative_time_table[] =
|
||
{
|
||
{ "TOMORROW", tDAY_SHIFT, 1 },
|
||
{ "YESTERDAY",tDAY_SHIFT, -1 },
|
||
{ "TODAY", tDAY_SHIFT, 0 },
|
||
{ "NOW", tDAY_SHIFT, 0 },
|
||
{ "LAST", tORDINAL, -1 },
|
||
{ "THIS", tORDINAL, 0 },
|
||
{ "NEXT", tORDINAL, 1 },
|
||
{ "FIRST", tORDINAL, 1 },
|
||
/*{ "SECOND", tORDINAL, 2 }, */
|
||
{ "THIRD", tORDINAL, 3 },
|
||
{ "FOURTH", tORDINAL, 4 },
|
||
{ "FIFTH", tORDINAL, 5 },
|
||
{ "SIXTH", tORDINAL, 6 },
|
||
{ "SEVENTH", tORDINAL, 7 },
|
||
{ "EIGHTH", tORDINAL, 8 },
|
||
{ "NINTH", tORDINAL, 9 },
|
||
{ "TENTH", tORDINAL, 10 },
|
||
{ "ELEVENTH", tORDINAL, 11 },
|
||
{ "TWELFTH", tORDINAL, 12 },
|
||
{ "AGO", tAGO, -1 },
|
||
{ "HENCE", tAGO, 1 },
|
||
{ NULL, 0, 0 }
|
||
};
|
||
|
||
/* The universal time zone table. These labels can be used even for
|
||
timestamps that would not otherwise be valid, e.g., GMT timestamps
|
||
oin 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 * 60) }, /* Newfoundland Standard */
|
||
{ "NDT", tDAYZONE,-(HOUR ( 3) + 30 * 60) }, /* 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 * 60) }, /* 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.
|
||
|
||
RFC 822 got these backwards, but RFC 5322 makes the incorrect
|
||
treatment optional, so do them the right way here.
|
||
|
||
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
|
||
seconds. 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
|
||
https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap08.html#tag_08_03, allow
|
||
only valid TZ range, and consider first two digits as hours, if no
|
||
minutes specified. Return true if successful. */
|
||
|
||
static bool
|
||
time_zone_hhmm (parser_control *pc, textint s, intmax_t mm)
|
||
{
|
||
intmax_t n_minutes;
|
||
bool overflow = false;
|
||
|
||
/* 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
|
||
{
|
||
overflow |= INT_MULTIPLY_WRAPV (s.value, 60, &n_minutes);
|
||
overflow |= (s.negative
|
||
? INT_SUBTRACT_WRAPV (n_minutes, mm, &n_minutes)
|
||
: INT_ADD_WRAPV (n_minutes, mm, &n_minutes));
|
||
}
|
||
|
||
if (overflow || ! (-24 * 60 <= n_minutes && n_minutes <= 24 * 60))
|
||
return false;
|
||
pc->time_zone = n_minutes * 60;
|
||
return true;
|
||
}
|
||
|
||
static int
|
||
to_hour (intmax_t hours, int meridian)
|
||
{
|
||
switch (meridian)
|
||
{
|
||
default: /* Pacify GCC. */
|
||
case MER24:
|
||
return 0 <= hours && hours < 24 ? hours : -1;
|
||
case MERam:
|
||
return 0 < hours && hours < 12 ? hours : hours == 12 ? 0 : -1;
|
||
case MERpm:
|
||
return 0 < hours && hours < 12 ? hours + 12 : hours == 12 ? 12 : -1;
|
||
}
|
||
}
|
||
|
||
enum { TM_YEAR_BASE = 1900 };
|
||
enum { TM_YEAR_BUFSIZE = INT_BUFSIZE_BOUND (int) + 1 };
|
||
|
||
/* Convert TM_YEAR, a year minus 1900, to a string that is numerically
|
||
correct even if subtracting 1900 would overflow. */
|
||
|
||
static char const *
|
||
tm_year_str (int tm_year, char buf[TM_YEAR_BUFSIZE])
|
||
{
|
||
verify (TM_YEAR_BASE % 100 == 0);
|
||
sprintf (buf, &"-%02d%02d"[-TM_YEAR_BASE <= tm_year],
|
||
abs (tm_year / 100 + TM_YEAR_BASE / 100),
|
||
abs (tm_year % 100));
|
||
return buf;
|
||
}
|
||
|
||
/* Convert a text year number to a year minus 1900, working correctly
|
||
even if the input is in the range INT_MAX .. INT_MAX + 1900 - 1. */
|
||
|
||
static bool
|
||
to_tm_year (textint textyear, bool debug, int *tm_year)
|
||
{
|
||
intmax_t year = textyear.value;
|
||
|
||
/* XPG4 suggests that years 00-68 map to 2000-2068, and
|
||
years 69-99 map to 1969-1999. */
|
||
if (0 <= year && textyear.digits == 2)
|
||
{
|
||
year += year < 69 ? 2000 : 1900;
|
||
if (debug)
|
||
dbg_printf (_("warning: adjusting year value %"PRIdMAX
|
||
" to %"PRIdMAX"\n"),
|
||
textyear.value, year);
|
||
}
|
||
|
||
if (year < 0
|
||
? INT_SUBTRACT_WRAPV (-TM_YEAR_BASE, year, tm_year)
|
||
: INT_SUBTRACT_WRAPV (year, TM_YEAR_BASE, tm_year))
|
||
{
|
||
if (debug)
|
||
dbg_printf (_("error: out-of-range year %"PRIdMAX"\n"), year);
|
||
return false;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
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 strftime.c. */
|
||
static int
|
||
tm_diff (const struct tm *a, const struct tm *b)
|
||
{
|
||
/* Compute intervening leap days correctly even if year is negative.
|
||
Take care to avoid int overflow in leap day calculations,
|
||
but it's OK to assume that A and B are close to each other. */
|
||
int a4 = SHR (a->tm_year, 2) + SHR (TM_YEAR_BASE, 2) - ! (a->tm_year & 3);
|
||
int b4 = SHR (b->tm_year, 2) + SHR (TM_YEAR_BASE, 2) - ! (b->tm_year & 3);
|
||
int a100 = a4 / 25 - (a4 % 25 < 0);
|
||
int b100 = b4 / 25 - (b4 % 25 < 0);
|
||
int a400 = SHR (a100, 2);
|
||
int b400 = SHR (b100, 2);
|
||
int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400);
|
||
int years = a->tm_year - b->tm_year;
|
||
int days = (365 * years + intervening_leap_days
|
||
+ (a->tm_yday - b->tm_yday));
|
||
return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour))
|
||
+ (a->tm_min - b->tm_min))
|
||
+ (a->tm_sec - b->tm_sec));
|
||
}
|
||
#endif /* ! HAVE_TM_GMTOFF */
|
||
|
||
static table const *
|
||
lookup_word (parser_control const *pc, char *word)
|
||
{
|
||
char *p;
|
||
char *q;
|
||
ptrdiff_t wordlen;
|
||
table const *tp;
|
||
bool period_found;
|
||
bool abbrev;
|
||
|
||
/* Make it uppercase. */
|
||
for (p = word; *p; p++)
|
||
*p = c_toupper (to_uchar (*p));
|
||
|
||
for (tp = meridian_table; tp->name; tp++)
|
||
if (strcmp (word, tp->name) == 0)
|
||
return tp;
|
||
|
||
/* See if we have an abbreviation for a month. */
|
||
wordlen = strlen (word);
|
||
abbrev = wordlen == 3 || (wordlen == 4 && word[3] == '.');
|
||
|
||
for (tp = month_and_day_table; tp->name; tp++)
|
||
if ((abbrev ? strncmp (word, tp->name, 3) : strcmp (word, tp->name)) == 0)
|
||
return tp;
|
||
|
||
if ((tp = lookup_zone (pc, word)))
|
||
return tp;
|
||
|
||
if (strcmp (word, dst_table[0].name) == 0)
|
||
return dst_table;
|
||
|
||
for (tp = time_units_table; tp->name; tp++)
|
||
if (strcmp (word, tp->name) == 0)
|
||
return tp;
|
||
|
||
/* Strip off any plural and try the units table again. */
|
||
if (word[wordlen - 1] == 'S')
|
||
{
|
||
word[wordlen - 1] = '\0';
|
||
for (tp = time_units_table; tp->name; tp++)
|
||
if (strcmp (word, tp->name) == 0)
|
||
return tp;
|
||
word[wordlen - 1] = 'S'; /* For "this" in relative_time_table. */
|
||
}
|
||
|
||
for (tp = relative_time_table; tp->name; tp++)
|
||
if (strcmp (word, tp->name) == 0)
|
||
return tp;
|
||
|
||
/* Military time zones. */
|
||
if (wordlen == 1)
|
||
for (tp = military_table; tp->name; tp++)
|
||
if (word[0] == tp->name[0])
|
||
return tp;
|
||
|
||
/* Drop out any periods and try the time zone table again. */
|
||
for (period_found = 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;
|
||
|
||
for (;;)
|
||
{
|
||
while (c = *pc->input, c_isspace (c))
|
||
pc->input++;
|
||
|
||
if (c_isdigit (c) || c == '-' || c == '+')
|
||
{
|
||
char const *p;
|
||
int sign;
|
||
intmax_t value = 0;
|
||
if (c == '-' || c == '+')
|
||
{
|
||
sign = c == '-' ? -1 : 1;
|
||
while (c = *++pc->input, c_isspace (c))
|
||
continue;
|
||
if (! c_isdigit (c))
|
||
/* skip the '-' sign */
|
||
continue;
|
||
}
|
||
else
|
||
sign = 0;
|
||
p = pc->input;
|
||
|
||
do
|
||
{
|
||
if (INT_MULTIPLY_WRAPV (value, 10, &value))
|
||
return '?';
|
||
if (INT_ADD_WRAPV (value, sign < 0 ? '0' - c : c - '0', &value))
|
||
return '?';
|
||
c = *++p;
|
||
}
|
||
while (c_isdigit (c));
|
||
|
||
if ((c == '.' || c == ',') && c_isdigit (p[1]))
|
||
{
|
||
time_t s;
|
||
int ns;
|
||
int digits;
|
||
|
||
if (time_overflow (value))
|
||
return '?';
|
||
s = value;
|
||
|
||
/* Accumulate fraction, to ns precision. */
|
||
p++;
|
||
ns = *p++ - '0';
|
||
for (digits = 2; digits <= LOG10_BILLION; digits++)
|
||
{
|
||
ns *= 10;
|
||
if (c_isdigit (*p))
|
||
ns += *p++ - '0';
|
||
}
|
||
|
||
/* Skip excess digits, truncating toward -Infinity. */
|
||
if (sign < 0)
|
||
for (; c_isdigit (*p); p++)
|
||
if (*p != '0')
|
||
{
|
||
ns++;
|
||
break;
|
||
}
|
||
while (c_isdigit (*p))
|
||
p++;
|
||
|
||
/* Adjust to the timespec convention, which is that
|
||
tv_nsec is always a positive offset even if tv_sec is
|
||
negative. */
|
||
if (sign < 0 && ns)
|
||
{
|
||
if (s == TYPE_MINIMUM (time_t))
|
||
return '?';
|
||
s--;
|
||
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;
|
||
lvalp->textintval.value = value;
|
||
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++);
|
||
|
||
ptrdiff_t 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_z, return true if it's OK. It's not OK if
|
||
mktime failed or if *TM0 has out-of-range mainline members.
|
||
The caller should set TM1->tm_wday to -1 before calling mktime,
|
||
as a negative tm_wday is how mktime failure is inferred. */
|
||
|
||
static bool
|
||
mktime_ok (struct tm const *tm0, struct tm const *tm1)
|
||
{
|
||
if (tm1->tm_wday < 0)
|
||
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));
|
||
}
|
||
|
||
/* Debugging: format a 'struct tm' into a buffer, taking the parser's
|
||
timezone information into account (if pc != NULL). */
|
||
static char const *
|
||
debug_strfdatetime (struct tm const *tm, parser_control const *pc,
|
||
char *buf, int 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 && m < n && pc->zones_seen)
|
||
{
|
||
int tz = pc->time_zone;
|
||
|
||
/* Account for DST if tLOCAL_ZONE was seen. */
|
||
if (pc->local_zones_seen && !pc->zones_seen && 0 < pc->local_isdst)
|
||
tz += 60 * 60;
|
||
|
||
char time_zone_buf[TIME_ZONE_BUFSIZE];
|
||
snprintf (&buf[m], n - m, " TZ=%s", time_zone_str (tz, time_zone_buf));
|
||
}
|
||
return buf;
|
||
}
|
||
|
||
static char const *
|
||
debug_strfdate (struct tm const *tm, char *buf, int n)
|
||
{
|
||
char tm_year_buf[TM_YEAR_BUFSIZE];
|
||
snprintf (buf, n, "(Y-M-D) %s-%02d-%02d",
|
||
tm_year_str (tm->tm_year, tm_year_buf),
|
||
tm->tm_mon + 1, tm->tm_mday);
|
||
return buf;
|
||
}
|
||
|
||
static char const *
|
||
debug_strftime (struct tm const *tm, char *buf, int 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,
|
||
parser_control const *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));
|
||
/* 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 (0 <= i)
|
||
{
|
||
if (sizeof tmp - 1 < i)
|
||
i = sizeof tmp - 1;
|
||
while (0 < i && 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")));
|
||
}
|
||
|
||
/* The original interface: run with debug=false and the default timezone. */
|
||
bool
|
||
parse_datetime (struct timespec *result, char const *p,
|
||
struct timespec const *now)
|
||
{
|
||
char const *tzstring = getenv ("TZ");
|
||
timezone_t tz = tzalloc (tzstring);
|
||
if (!tz)
|
||
return false;
|
||
bool ok = parse_datetime2 (result, p, now, 0, tz, tzstring);
|
||
tzfree (tz);
|
||
return ok;
|
||
}
|
||
|
||
/* 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. Default to timezone
|
||
TZDEFAULT, which corresponds to tzalloc (TZSTRING). */
|
||
bool
|
||
parse_datetime2 (struct timespec *result, char const *p,
|
||
struct timespec const *now, unsigned int flags,
|
||
timezone_t tzdefault, char const *tzstring)
|
||
{
|
||
struct tm tm;
|
||
struct tm tm0;
|
||
char time_zone_buf[TIME_ZONE_BUFSIZE];
|
||
char dbg_tm[DBGBUFSIZE];
|
||
bool ok = false;
|
||
char const *input_sentinel = p + strlen (p);
|
||
char *tz1alloc = NULL;
|
||
|
||
/* A reasonable upper bound for the size of ordinary TZ strings.
|
||
Use heap allocation if TZ's length exceeds this. */
|
||
enum { TZBUFSIZE = 100 };
|
||
char tz1buf[TZBUFSIZE];
|
||
|
||
struct timespec gettime_buffer;
|
||
if (! now)
|
||
{
|
||
gettime (&gettime_buffer);
|
||
now = &gettime_buffer;
|
||
}
|
||
|
||
time_t Start = now->tv_sec;
|
||
int Start_ns = now->tv_nsec;
|
||
|
||
unsigned char c;
|
||
while (c = *p, c_isspace (c))
|
||
p++;
|
||
|
||
timezone_t tz = tzdefault;
|
||
|
||
/* Store a local copy prior to first "goto". Without this, a prior use
|
||
below of RELATIVE_TIME_0 on the RHS might translate to an assignment-
|
||
to-temporary, which would trigger a -Wjump-misses-init warning. */
|
||
const relative_time rel_time_0 = RELATIVE_TIME_0;
|
||
|
||
if (strncmp (p, "TZ=\"", 4) == 0)
|
||
{
|
||
char const *tzbase = p + 4;
|
||
ptrdiff_t tzsize = 1;
|
||
char const *s;
|
||
|
||
for (s = tzbase; *s; s++, tzsize++)
|
||
if (*s == '\\')
|
||
{
|
||
s++;
|
||
if (! (*s == '\\' || *s == '"'))
|
||
break;
|
||
}
|
||
else if (*s == '"')
|
||
{
|
||
timezone_t tz1;
|
||
char *tz1string = tz1buf;
|
||
char *z;
|
||
if (TZBUFSIZE < tzsize)
|
||
{
|
||
tz1alloc = malloc (tzsize);
|
||
if (!tz1alloc)
|
||
goto fail;
|
||
tz1string = tz1alloc;
|
||
}
|
||
z = tz1string;
|
||
for (s = tzbase; *s != '"'; s++)
|
||
*z++ = *(s += *s == '\\');
|
||
*z = '\0';
|
||
tz1 = tzalloc (tz1string);
|
||
if (!tz1)
|
||
goto fail;
|
||
tz = tz1;
|
||
tzstring = tz1string;
|
||
|
||
p = s + 1;
|
||
while (c = *p, c_isspace (c))
|
||
p++;
|
||
|
||
break;
|
||
}
|
||
}
|
||
|
||
struct tm tmp;
|
||
if (! localtime_rz (tz, &now->tv_sec, &tmp))
|
||
goto fail;
|
||
|
||
/* 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";
|
||
|
||
parser_control pc;
|
||
pc.input = p;
|
||
pc.parse_datetime_debug = (flags & PARSE_DATETIME_DEBUG) != 0;
|
||
if (INT_ADD_WRAPV (tmp.tm_year, TM_YEAR_BASE, &pc.year.value))
|
||
{
|
||
if (pc.parse_datetime_debug)
|
||
dbg_printf (_("error: initial year out of range\n"));
|
||
goto fail;
|
||
}
|
||
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 = rel_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.year_seen = false;
|
||
pc.debug_dates_seen = false;
|
||
pc.debug_days_seen = false;
|
||
pc.debug_times_seen = false;
|
||
pc.debug_local_zones_seen = false;
|
||
pc.debug_zones_seen = false;
|
||
pc.debug_year_seen = false;
|
||
pc.debug_ordinal_day_seen = false;
|
||
|
||
#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++)
|
||
{
|
||
intmax_t iprobe;
|
||
if (INT_ADD_WRAPV (Start, quarter * (90 * 24 * 60 * 60), &iprobe)
|
||
|| time_overflow (iprobe))
|
||
break;
|
||
time_t probe = iprobe;
|
||
struct tm probe_tm;
|
||
if (localtime_rz (tz, &probe, &probe_tm) && probe_tm.tm_zone
|
||
&& probe_tm.tm_isdst != pc.local_time_zone_table[0].value)
|
||
{
|
||
{
|
||
pc.local_time_zone_table[1].name = probe_tm.tm_zone;
|
||
pc.local_time_zone_table[1].type = tLOCAL_ZONE;
|
||
pc.local_time_zone_table[1].value = probe_tm.tm_isdst;
|
||
pc.local_time_zone_table[2].name = NULL;
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
#else
|
||
#if HAVE_TZNAME
|
||
{
|
||
# if !HAVE_DECL_TZNAME
|
||
extern char *tzname[];
|
||
# endif
|
||
int i;
|
||
for (i = 0; i < 2; i++)
|
||
{
|
||
pc.local_time_zone_table[i].name = tzname[i];
|
||
pc.local_time_zone_table[i].type = tLOCAL_ZONE;
|
||
pc.local_time_zone_table[i].value = i;
|
||
}
|
||
pc.local_time_zone_table[i].name = NULL;
|
||
}
|
||
#else
|
||
pc.local_time_zone_table[0].name = NULL;
|
||
#endif
|
||
#endif
|
||
|
||
if (pc.local_time_zone_table[0].name && pc.local_time_zone_table[1].name
|
||
&& ! strcmp (pc.local_time_zone_table[0].name,
|
||
pc.local_time_zone_table[1].name))
|
||
{
|
||
/* This locale uses the same abbreviation for standard and
|
||
daylight times. So if we see that abbreviation, we don't
|
||
know whether it's daylight time. */
|
||
pc.local_time_zone_table[0].value = -1;
|
||
pc.local_time_zone_table[1].name = NULL;
|
||
}
|
||
|
||
if (yyparse (&pc) != 0)
|
||
{
|
||
if (pc.parse_datetime_debug)
|
||
dbg_printf ((input_sentinel <= pc.input
|
||
? _("error: parsing failed\n")
|
||
: _("error: parsing failed, stopped at '%s'\n")),
|
||
pc.input);
|
||
goto fail;
|
||
}
|
||
|
||
|
||
/* Determine effective timezone source. */
|
||
|
||
if (pc.parse_datetime_debug)
|
||
{
|
||
dbg_printf (_("input timezone: "));
|
||
|
||
if (pc.timespec_seen)
|
||
fprintf (stderr, _("'@timespec' - always UTC"));
|
||
else if (pc.zones_seen)
|
||
fprintf (stderr, _("parsed date/time string"));
|
||
else if (tzstring)
|
||
{
|
||
if (tz != tzdefault)
|
||
fprintf (stderr, _("TZ=\"%s\" in date string"), tzstring);
|
||
else if (STREQ (tzstring, "UTC0"))
|
||
{
|
||
/* Special case: 'date -u' sets TZ="UTC0". */
|
||
fprintf (stderr, _("TZ=\"UTC0\" environment value or -u"));
|
||
}
|
||
else
|
||
fprintf (stderr, _("TZ=\"%s\" environment value"), tzstring);
|
||
}
|
||
else
|
||
fprintf (stderr, _("system default"));
|
||
|
||
/* Account for DST changes if tLOCAL_ZONE was seen.
|
||
local timezone only changes DST and is relative to the
|
||
default timezone.*/
|
||
if (pc.local_zones_seen && !pc.zones_seen && 0 < pc.local_isdst)
|
||
fprintf (stderr, ", dst");
|
||
|
||
if (pc.zones_seen)
|
||
fprintf (stderr, " (%s)", time_zone_str (pc.time_zone, time_zone_buf));
|
||
|
||
fputc ('\n', stderr);
|
||
}
|
||
|
||
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;
|
||
}
|
||
|
||
if (! to_tm_year (pc.year, pc.parse_datetime_debug, &tm.tm_year)
|
||
|| INT_ADD_WRAPV (pc.month, -1, &tm.tm_mon)
|
||
|| INT_ADD_WRAPV (pc.day, 0, &tm.tm_mday))
|
||
{
|
||
if (pc.parse_datetime_debug)
|
||
dbg_printf (_("error: year, month, or day overflow\n"));
|
||
goto fail;
|
||
}
|
||
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)
|
||
{
|
||
char const *mrd = (pc.meridian == MERam ? "am"
|
||
: pc.meridian == MERpm ?"pm" : "");
|
||
if (pc.parse_datetime_debug)
|
||
dbg_printf (_("error: invalid hour %"PRIdMAX"%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 ((pc.times_seen
|
||
? _("using specified time as starting value: '%s'\n")
|
||
: _("using current time as starting value: '%s'\n")),
|
||
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 timestamp. */
|
||
if (pc.dates_seen | pc.days_seen | pc.times_seen)
|
||
tm.tm_isdst = -1;
|
||
|
||
/* But if the input explicitly specifies local time with or without
|
||
DST, give mktime that information. */
|
||
if (pc.local_zones_seen)
|
||
tm.tm_isdst = pc.local_isdst;
|
||
|
||
tm0.tm_sec = tm.tm_sec;
|
||
tm0.tm_min = tm.tm_min;
|
||
tm0.tm_hour = tm.tm_hour;
|
||
tm0.tm_mday = tm.tm_mday;
|
||
tm0.tm_mon = tm.tm_mon;
|
||
tm0.tm_year = tm.tm_year;
|
||
tm0.tm_isdst = tm.tm_isdst;
|
||
tm.tm_wday = -1;
|
||
|
||
Start = mktime_z (tz, &tm);
|
||
|
||
if (! mktime_ok (&tm0, &tm))
|
||
{
|
||
bool repaired = false;
|
||
bool time_zone_seen = pc.zones_seen != 0;
|
||
if (time_zone_seen)
|
||
{
|
||
/* 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. */
|
||
|
||
char tz2buf[sizeof "XXX" - 1 + TIME_ZONE_BUFSIZE];
|
||
tz2buf[0] = tz2buf[1] = tz2buf[2] = 'X';
|
||
time_zone_str (pc.time_zone, &tz2buf[3]);
|
||
timezone_t tz2 = tzalloc (tz2buf);
|
||
if (!tz2)
|
||
{
|
||
if (pc.parse_datetime_debug)
|
||
dbg_printf (_("error: tzalloc (\"%s\") failed\n"), tz2buf);
|
||
goto fail;
|
||
}
|
||
tm.tm_sec = tm0.tm_sec;
|
||
tm.tm_min = tm0.tm_min;
|
||
tm.tm_hour = tm0.tm_hour;
|
||
tm.tm_mday = tm0.tm_mday;
|
||
tm.tm_mon = tm0.tm_mon;
|
||
tm.tm_year = tm0.tm_year;
|
||
tm.tm_isdst = tm0.tm_isdst;
|
||
tm.tm_wday = -1;
|
||
Start = mktime_z (tz2, &tm);
|
||
repaired = mktime_ok (&tm0, &tm);
|
||
tzfree (tz2);
|
||
}
|
||
|
||
if (! repaired)
|
||
{
|
||
debug_mktime_not_ok (&tm0, &tm, &pc, time_zone_seen);
|
||
goto fail;
|
||
}
|
||
}
|
||
|
||
char dbg_ord[DBGBUFSIZE];
|
||
|
||
if (pc.days_seen && ! pc.dates_seen)
|
||
{
|
||
intmax_t dayincr;
|
||
if (INT_MULTIPLY_WRAPV ((pc.day_ordinal
|
||
- (0 < pc.day_ordinal
|
||
&& tm.tm_wday != pc.day_number)),
|
||
7, &dayincr)
|
||
|| INT_ADD_WRAPV ((pc.day_number - tm.tm_wday + 7) % 7,
|
||
dayincr, &dayincr)
|
||
|| INT_ADD_WRAPV (dayincr, tm.tm_mday, &tm.tm_mday))
|
||
Start = -1;
|
||
else
|
||
{
|
||
tm.tm_isdst = -1;
|
||
Start = mktime_z (tz, &tm);
|
||
}
|
||
|
||
if (Start == (time_t) -1)
|
||
{
|
||
if (pc.parse_datetime_debug)
|
||
dbg_printf (_("error: day '%s' "
|
||
"(day ordinal=%"PRIdMAX" 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 != 15)
|
||
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 != 12)
|
||
dbg_printf (_("warning: when adding relative days, "
|
||
"it is recommended to specify noon\n"));
|
||
}
|
||
|
||
int year, month, day;
|
||
if (INT_ADD_WRAPV (tm.tm_year, pc.rel.year, &year)
|
||
|| INT_ADD_WRAPV (tm.tm_mon, pc.rel.month, &month)
|
||
|| INT_ADD_WRAPV (tm.tm_mday, pc.rel.day, &day))
|
||
{
|
||
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_z (tz, &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 "
|
||
"(%+"PRIdMAX" years, %+"PRIdMAX" months, "
|
||
"%+"PRIdMAX" 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));
|
||
|
||
/* Warn about crossing DST due to time adjustment.
|
||
Example: https://bugs.gnu.org/8357
|
||
env TZ=Europe/Helsinki \
|
||
date --debug \
|
||
-d 'Mon Mar 28 00:36:07 2011 EEST 1 day ago'
|
||
|
||
This case is different than DST changes due to time adjustment,
|
||
i.e., "1 day ago" vs "24 hours ago" are calculated in different
|
||
places.
|
||
|
||
'tm0.tm_isdst' contains the DST of the input date,
|
||
'tm.tm_isdst' is the normalized result after calling
|
||
mktime (&tm).
|
||
*/
|
||
if (tm0.tm_isdst != -1 && tm.tm_isdst != tm0.tm_isdst)
|
||
dbg_printf (_("warning: daylight saving time changed after "
|
||
"date adjustment\n"));
|
||
|
||
/* Warn if the user did not ask to adjust days but mday changed,
|
||
or
|
||
user did not ask to adjust months/days but the month changed.
|
||
|
||
Example for first case:
|
||
2016-05-31 + 1 month => 2016-06-31 => 2016-07-01.
|
||
User asked to adjust month, but the day changed from 31 to 01.
|
||
|
||
Example for second case:
|
||
2016-02-29 + 1 year => 2017-02-29 => 2017-03-01.
|
||
User asked to adjust year, but the month changed from 02 to 03.
|
||
*/
|
||
if (pc.rel.day == 0
|
||
&& (tm.tm_mday != day
|
||
|| (pc.rel.month == 0 && tm.tm_mon != month)))
|
||
{
|
||
dbg_printf (_("warning: month/year adjustment resulted in "
|
||
"shifted dates:\n"));
|
||
char tm_year_buf[TM_YEAR_BUFSIZE];
|
||
dbg_printf (_(" adjusted Y M D: %s %02d %02d\n"),
|
||
tm_year_str (year, tm_year_buf), month + 1, day);
|
||
dbg_printf (_(" normalized Y M D: %s %02d %02d\n"),
|
||
tm_year_str (tm.tm_year, tm_year_buf),
|
||
tm.tm_mon + 1, tm.tm_mday);
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
/* The only "output" of this if-block is an updated Start value,
|
||
so this block must follow others that clobber Start. */
|
||
if (pc.zones_seen)
|
||
{
|
||
intmax_t delta = pc.time_zone, t1;
|
||
bool overflow = false;
|
||
#ifdef HAVE_TM_GMTOFF
|
||
long int utcoff = tm.tm_gmtoff;
|
||
#else
|
||
time_t t = Start;
|
||
struct tm gmt;
|
||
int utcoff = (gmtime_r (&t, &gmt)
|
||
? tm_diff (&tm, &gmt)
|
||
: (overflow = true, 0));
|
||
#endif
|
||
overflow |= INT_SUBTRACT_WRAPV (delta, utcoff, &delta);
|
||
overflow |= INT_SUBTRACT_WRAPV (Start, delta, &t1);
|
||
if (overflow || time_overflow (t1))
|
||
{
|
||
if (pc.parse_datetime_debug)
|
||
dbg_printf (_("error: timezone %d caused time_t overflow\n"),
|
||
pc.time_zone);
|
||
goto fail;
|
||
}
|
||
Start = t1;
|
||
}
|
||
|
||
if (pc.parse_datetime_debug)
|
||
{
|
||
intmax_t Starti = Start;
|
||
dbg_printf (_("'%s' = %"PRIdMAX" epoch-seconds\n"),
|
||
debug_strfdatetime (&tm, &pc, dbg_tm, sizeof dbg_tm),
|
||
Starti);
|
||
}
|
||
|
||
|
||
/* Add relative hours, minutes, and seconds. On hosts that support
|
||
leap seconds, ignore the possibility of leap seconds; e.g.,
|
||
"+ 10 minutes" adds 600 seconds, even if one of them is a
|
||
leap second. Typically this is not what the user wants, but it's
|
||
too hard to do it the other way, because the time zone indicator
|
||
must be applied before relative times, and if mktime is applied
|
||
again the time zone will be lost. */
|
||
{
|
||
intmax_t orig_ns = pc.seconds.tv_nsec;
|
||
intmax_t sum_ns = orig_ns + pc.rel.ns;
|
||
int normalized_ns = (sum_ns % BILLION + BILLION) % BILLION;
|
||
int d4 = (sum_ns - normalized_ns) / BILLION;
|
||
intmax_t d1, t1, d2, t2, t3, t4;
|
||
if (INT_MULTIPLY_WRAPV (pc.rel.hour, 60 * 60, &d1)
|
||
|| INT_ADD_WRAPV (Start, d1, &t1)
|
||
|| INT_MULTIPLY_WRAPV (pc.rel.minutes, 60, &d2)
|
||
|| INT_ADD_WRAPV (t1, d2, &t2)
|
||
|| INT_ADD_WRAPV (t2, pc.rel.seconds, &t3)
|
||
|| INT_ADD_WRAPV (t3, d4, &t4)
|
||
|| time_overflow (t4))
|
||
{
|
||
if (pc.parse_datetime_debug)
|
||
dbg_printf (_("error: adding relative time caused an "
|
||
"overflow\n"));
|
||
goto fail;
|
||
}
|
||
|
||
result->tv_sec = t4;
|
||
result->tv_nsec = normalized_ns;
|
||
|
||
if (pc.parse_datetime_debug
|
||
&& (pc.rel.hour | pc.rel.minutes | pc.rel.seconds | pc.rel.ns))
|
||
{
|
||
dbg_printf (_("after time adjustment (%+"PRIdMAX" hours, "
|
||
"%+"PRIdMAX" minutes, "
|
||
"%+"PRIdMAX" seconds, %+d ns),\n"),
|
||
pc.rel.hour, pc.rel.minutes, pc.rel.seconds,
|
||
pc.rel.ns);
|
||
dbg_printf (_(" new time = %"PRIdMAX" epoch-seconds\n"), t4);
|
||
|
||
/* Warn about crossing DST due to time adjustment.
|
||
Example: https://bugs.gnu.org/8357
|
||
env TZ=Europe/Helsinki \
|
||
date --debug \
|
||
-d 'Mon Mar 28 00:36:07 2011 EEST 24 hours ago'
|
||
|
||
This case is different than DST changes due to days adjustment,
|
||
i.e., "1 day ago" vs "24 hours ago" are calculated in different
|
||
places.
|
||
|
||
'tm.tm_isdst' contains the date after date adjustment. */
|
||
struct tm lmt;
|
||
if (tm.tm_isdst != -1 && localtime_rz (tz, &result->tv_sec, &lmt)
|
||
&& tm.tm_isdst != lmt.tm_isdst)
|
||
dbg_printf (_("warning: daylight saving time changed after "
|
||
"time adjustment\n"));
|
||
}
|
||
}
|
||
}
|
||
|
||
if (pc.parse_datetime_debug)
|
||
{
|
||
/* Special case: using 'date -u' simply set TZ=UTC0 */
|
||
if (! tzstring)
|
||
dbg_printf (_("timezone: system default\n"));
|
||
else if (STREQ (tzstring, "UTC0"))
|
||
dbg_printf (_("timezone: Universal Time\n"));
|
||
else
|
||
dbg_printf (_("timezone: TZ=\"%s\" environment value\n"), tzstring);
|
||
|
||
intmax_t sec = result->tv_sec;
|
||
int nsec = result->tv_nsec;
|
||
dbg_printf (_("final: %"PRIdMAX".%09d (epoch-seconds)\n"),
|
||
sec, nsec);
|
||
|
||
struct tm gmt, lmt;
|
||
bool got_utc = !!gmtime_r (&result->tv_sec, &gmt);
|
||
if (got_utc)
|
||
dbg_printf (_("final: %s (UTC)\n"),
|
||
debug_strfdatetime (&gmt, NULL,
|
||
dbg_tm, sizeof dbg_tm));
|
||
if (localtime_rz (tz, &result->tv_sec, &lmt))
|
||
{
|
||
#ifdef HAVE_TM_GMTOFF
|
||
bool got_utcoff = true;
|
||
long int utcoff = lmt.tm_gmtoff;
|
||
#else
|
||
bool got_utcoff = got_utc;
|
||
int utcoff;
|
||
if (got_utcoff)
|
||
utcoff = tm_diff (&lmt, &gmt);
|
||
#endif
|
||
if (got_utcoff)
|
||
dbg_printf (_("final: %s (UTC%s)\n"),
|
||
debug_strfdatetime (&lmt, NULL, dbg_tm, sizeof dbg_tm),
|
||
time_zone_str (utcoff, time_zone_buf));
|
||
else
|
||
dbg_printf (_("final: %s (unknown time zone offset)\n"),
|
||
debug_strfdatetime (&lmt, NULL, dbg_tm, sizeof dbg_tm));
|
||
}
|
||
}
|
||
|
||
ok = true;
|
||
|
||
fail:
|
||
if (tz != tzdefault)
|
||
tzfree (tz);
|
||
free (tz1alloc);
|
||
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)))
|
||
{
|
||
intmax_t sec = d.tv_sec;
|
||
printf ("localtime (%"PRIdMAX") failed\n", sec);
|
||
}
|
||
else
|
||
{
|
||
int ns = d.tv_nsec;
|
||
char tm_year_buf[TM_YEAR_BUFSIZE];
|
||
printf ("%s-%02d-%02d %02d:%02d:%02d.%09d\n",
|
||
tm_year_str (tm->tm_year, tm_year_buf),
|
||
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 */
|