%{
/* Parse a string into an internal time stamp.
- Copyright 1999, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1999, 2000, 2002, 2003 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
#ifdef HAVE_CONFIG_H
# include <config.h>
-# ifdef HAVE_ALLOCA_H
-# include <alloca.h>
-# endif
#endif
+#include <alloca.h>
+
/* Since the code of getdate.y is not included in the Emacs executable
itself, there is no need to #define static in this file. Even if
the code were included in the Emacs executable, it probably
- Its arg may be any int or unsigned int; it need not be an unsigned char.
- It's guaranteed to evaluate its argument exactly once.
- It's typically faster.
- Posix 1003.2-1992 section 2.5.2.1 page 50 lines 1556-1558 says that
- only '0' through '9' are digits. Prefer ISDIGIT to ISDIGIT_LOCALE unless
- it's important to use the locale's definition of `digit' even when the
- host does not conform to Posix. */
+ POSIX says that only '0' through '9' are digits. Prefer ISDIGIT to
+ ISDIGIT_LOCALE unless it's important to use the locale's definition
+ of `digit' even when the host does not conform to POSIX. */
#define ISDIGIT(c) ((unsigned) (c) - '0' <= 9)
#if STDC_HEADERS || HAVE_STRING_H
#define TM_YEAR_BASE 1900
#define HOUR(x) ((x) * 60)
-
+
/* An integer value, and the number of digits in its textual
representation. */
typedef struct
/* This grammar has 13 shift/reduce conflicts. */
%expect 13
-
+
%union
{
int intval;
| tSNUMBER tDAY_UNIT
{ PC.rel_day += $1.value * $2; }
| tDAY_UNIT
- { PC.rel_day += $1 }
+ { PC.rel_day += $1; }
| tUNUMBER tHOUR_UNIT
{ PC.rel_hour += $1.value * $2; }
| tSNUMBER tHOUR_UNIT
{ PC.rel_hour += $1.value * $2; }
| tHOUR_UNIT
- { PC.rel_hour += $1 }
+ { PC.rel_hour += $1; }
| tUNUMBER tMINUTE_UNIT
{ PC.rel_minutes += $1.value * $2; }
| tSNUMBER tMINUTE_UNIT
{ PC.rel_minutes += $1.value * $2; }
| tMINUTE_UNIT
- { PC.rel_minutes += $1 }
+ { PC.rel_minutes += $1; }
| tUNUMBER tSEC_UNIT
{ PC.rel_seconds += $1.value * $2; }
| tSNUMBER tSEC_UNIT
may define-away `const'. We want the prototype for get_date to have
the same signature as the function definition. */
#include "getdate.h"
+#include "unlocked-io.h"
#ifndef gmtime
struct tm *gmtime ();
pc.local_zones_seen = 0;
pc.zones_seen = 0;
-#if HAVE_TM_ZONE
+#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;
{
tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
}
- tm.tm_hour += pc.rel_hour;
- tm.tm_min += pc.rel_minutes;
- tm.tm_sec += pc.rel_seconds;
/* Let mktime deduce tm_isdst if we have an absolute time stamp,
or if the relative time stamp mentions days, months, or years. */
- if (pc.dates_seen | pc.days_seen | pc.times_seen | pc.rel_day | pc.rel_month | pc.rel_year)
+ if (pc.dates_seen | pc.days_seen | pc.times_seen | pc.rel_day
+ | pc.rel_month | pc.rel_year)
tm.tm_isdst = -1;
/* But if the input explicitly specifies local time with or without
{
tm.tm_mday += ((pc.day_number - tm.tm_wday + 7) % 7
+ 7 * (pc.day_ordinal - (0 < pc.day_ordinal)));
+ tm.tm_isdst = -1;
Start = mktime (&tm);
if (Start == (time_t) -1)
return Start;
Start -= delta;
}
+ /* Add relative hours, minutes, and seconds. Ignore leap seconds;
+ i.e. "+ 10 minutes" means 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. */
+ {
+ time_t t0 = Start;
+ long d1 = 60 * 60 * (long) pc.rel_hour;
+ time_t t1 = t0 + d1;
+ long d2 = 60 * (long) pc.rel_minutes;
+ time_t t2 = t1 + d2;
+ int d3 = pc.rel_seconds;
+ time_t t3 = t2 + d3;
+ if ((d1 / (60 * 60) ^ pc.rel_hour)
+ | (d2 / 60 ^ pc.rel_minutes)
+ | ((t0 + d1 < t0) ^ (d1 < 0))
+ | ((t1 + d2 < t1) ^ (d2 < 0))
+ | ((t2 + d3 < t2) ^ (d3 < 0)))
+ return -1;
+ Start = t3;
+ }
+
return Start;
}