%{
-/* $Revision: 1.2 $
-**
+/*
** 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;
** send any email to Rich.
**
-** This grammar has nine shift/reduce conflicts.
+** This grammar has 10 shift/reduce conflicts.
**
** This code is in the public domain and has no copyright.
*/
-/* SUPPRESS 287 on yaccpar_sccsid *//* Unusd static variable */
+/* SUPPRESS 287 on yaccpar_sccsid *//* Unused static variable */
/* SUPPRESS 288 on yyerrlab *//* Label unused */
#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#ifdef __GNUC__
-#define alloca __builtin_alloca
+#if defined (emacs) || defined (CONFIG_BROKETS)
+#include <config.h>
#else
-#ifdef HAVE_ALLOCA_H
-#include <alloca.h>
-#else
-#ifdef _AIX /* for Bison */
- #pragma alloca
-#else
-char *alloca ();
+#include "config.h"
#endif
#endif
+
+/* Since the code of getdate.y is not included in the Emacs executable
+ itself, there is no need to #define static in this file. Even if
+ the code were included in the Emacs executable, it probably
+ wouldn't do any harm to #undef it here; this will only cause
+ problems if we try to write to a static variable, which I don't
+ think this code needs to do. */
+#ifdef emacs
+#undef static
#endif
#include <stdio.h>
#include <sys/types.h>
-#if sgi
-#undef timezone
-#endif
-
-#if !(defined (USG) || defined (sgi) || defined (__386BSD__)) || defined(BSD4_2) || defined(BSD4_1C) || (defined (hp9000) && !defined (hpux)) || defined(_AIX)
+#ifdef TIME_WITH_SYS_TIME
+#include <sys/time.h>
+#include <time.h>
+#else
+#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#else
#include <time.h>
#endif
+#endif
+
+#ifdef timezone
+#undef timezone /* needed for sgi */
+#endif
-#if defined(USG) || !defined(HAVE_FTIME)
+#if defined(HAVE_SYS_TIMEB_H)
+#include <sys/timeb.h>
+#else
/*
-** If you need to do a tzset() call to set the
-** timezone, and don't have ftime().
+** We use the obsolete `struct timeb' as part of our interface!
+** Since the system doesn't have it, we define it here;
+** our callers must do likewise.
*/
struct timeb {
time_t time; /* Seconds since the epoch */
unsigned short millitm; /* Field not used */
- short timezone;
+ short timezone; /* Minutes west of GMT */
short dstflag; /* Field not used */
};
-
-#else
-
-#include <sys/timeb.h>
-
-#endif /* defined(USG) && !defined(HAVE_FTIME) */
+#endif /* defined(HAVE_SYS_TIMEB_H) */
#endif /* defined(vms) */
#include <string.h>
#endif
+/* Some old versions of bison generate parsers that use bcopy.
+ That loses on systems that don't provide the function, so we have
+ to redefine it here. */
+#if !defined (HAVE_BCOPY) && defined (HAVE_MEMCPY) && !defined (bcopy)
+#define bcopy(from, to, len) memcpy ((to), (from), (len))
+#endif
+
+extern struct tm *gmtime();
extern struct tm *localtime();
#define yyparse getdate_yyparse
#if !defined(lint) && !defined(SABER)
static char RCS[] =
- "$Header: /w/src/cvsroot/fileutils/lib/getdate.y,v 1.2 1993/04/04 15:21:49 meyering Exp $";
+ "$Header: str2date.y,v 2.1 90/09/06 08:15:06 cronan Exp $";
#endif /* !defined(lint) && !defined(SABER) */
yyMonth = -$2;
yyDay = -$3;
}
+ | tUNUMBER tMONTH tSNUMBER {
+ /* e.g. 17-JUN-1992. */
+ yyDay = $1;
+ yyMonth = $2;
+ yyYear = -$3;
+ }
| tMONTH tUNUMBER {
yyMonth = $1;
yyDay = $2;
yyYear = $1;
else {
if($1>10000) {
- time_t date_part;
-
- date_part= $1/10000;
yyHaveDate++;
- yyDay= (date_part)%100;
- yyMonth= (date_part/100)%100;
- yyYear = date_part/10000;
- }
- yyHaveTime++;
- if ($1 < 100) {
- yyHour = $1;
- yyMinutes = 0;
+ yyDay= ($1)%100;
+ yyMonth= ($1/100)%100;
+ yyYear = $1/10000;
}
else {
- yyHour = $1 / 100;
- yyMinutes = $1 % 100;
- }
- yySeconds = 0;
- yyMeridian = MER24;
+ yyHaveTime++;
+ if ($1 < 100) {
+ yyHour = $1;
+ yyMinutes = 0;
+ }
+ else {
+ yyHour = $1 / 100;
+ yyMinutes = $1 % 100;
+ }
+ yySeconds = 0;
+ yyMeridian = MER24;
+ }
}
}
;
if (Hours < 1 || Hours > 12)
return -1;
return ((Hours + 12) * 60L + Minutes) * 60L + Seconds;
+ default:
+ abort ();
}
/* NOTREACHED */
}
}
}
+#define TM_YEAR_ORIGIN 1900
+
+/* Yield A - B, measured in seconds. */
+static long
+difftm (a, b)
+ struct tm *a, *b;
+{
+ int ay = a->tm_year + (TM_YEAR_ORIGIN - 1);
+ int by = b->tm_year + (TM_YEAR_ORIGIN - 1);
+ int days = (
+ /* difference in day of year */
+ a->tm_yday - b->tm_yday
+ /* + intervening leap days */
+ + ((ay >> 2) - (by >> 2))
+ - (ay/100 - by/100)
+ + ((ay/100 >> 2) - (by/100 >> 2))
+ /* + difference in years * 365 */
+ + (long)(ay-by) * 365
+ );
+ return (60*(60*(24*days + (a->tm_hour - b->tm_hour))
+ + (a->tm_min - b->tm_min))
+ + (a->tm_sec - b->tm_sec));
+}
time_t
get_date(p, now)
char *p;
struct timeb *now;
{
- struct tm *tm;
+ struct tm *tm, gmt;
struct timeb ftz;
time_t Start;
time_t tod;
yyInput = p;
if (now == NULL) {
now = &ftz;
-#if !defined(HAVE_FTIME)
(void)time(&ftz.time);
- /* Set the timezone global. */
- tzset();
- {
-#if sgi
- ftz.timezone = (int) _timezone / 60;
-#else /* not sgi */
-#ifdef __386BSD__
- ftz.timezone = 0;
-#else /* neither sgi nor 386BSD */
-#if defined (USG)
- extern time_t timezone;
-
- ftz.timezone = (int) timezone / 60;
-#else /* neither sgi nor 386BSD nor USG */
- struct timeval tv;
- struct timezone tz;
-
- gettimeofday (&tv, &tz);
- ftz.timezone = (int) tz.tz_minuteswest;
-#endif /* neither sgi nor 386BSD nor USG */
-#endif /* neither sgi nor 386BSD */
-#endif /* not sgi */
- }
-#else /* HAVE_FTIME */
- (void)ftime(&ftz);
-#endif /* HAVE_FTIME */
+
+ if (! (tm = gmtime (&ftz.time)))
+ return -1;
+ gmt = *tm; /* Make a copy, in case localtime modifies *tm. */
+ ftz.timezone = difftm (&gmt, localtime (&ftz.time)) / 60;
}
tm = localtime(&now->time);
#if defined(TEST)
/* ARGSUSED */
+int
main(ac, av)
int ac;
char *av[];
projects / gnulib.git / blobdiff