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/* tws.h - header file for libtws date/time library
(from mod.sources, Volume 8, Issue 81.)
{Second distribution of phoon, deltime, and libtws - 24feb87.
Jef Poskanzer, UniSoft Systems, Berkeley
unisoft!jef@ucbvax.Berkeley.Edu
...ucbvax!unisoft!jef
(415)644-1230 }
This library is used to allow date stamping of files in Unix. The
standard time routines in Unix do not provide routines to convert a
parsed time into a time(3) clock value, so.... If you don't have this
code, and can't get it, take out the references to it in arcdos.c,
and remove the reference to tws.h and libtws.a in the Makefile.
-- Howard Chu, March 3, 1987
University of Michigan Computing Center
hyc@umix.cc.umich.edu
...uunet!umix!hyc */
/* Definition of the tws data structure. */
struct tws {
int tw_sec;
int tw_min;
int tw_hour;
int tw_mday;
int tw_mon;
int tw_year;
int tw_wday;
int tw_yday;
int tw_zone;
long tw_clock;
int tw_flags;
#define TW_NULL 0x0000
#define TW_SDAY 0x0007 /* how day-of-week was determined */
#define TW_SNIL 0x0000 /* not given */
#define TW_SEXP 0x0001 /* explicitly given */
#define TW_SIMP 0x0002 /* implicitly given */
#define TW_DST 0x0010 /* daylight savings time */
#define TW_ZONE 0x0020 /* use numeric timezones only */
#define TW_JUNK 0x0040 /* date string contained junk */
};
/* Declarations of routines. */
void twscopy( );
/* twscopy( &totws, &fromtws ) copies a tws */
int twsort( );
/* twsort( &tws1, &tws2 ) compares two tws's: 1 means tws1 is
later; -1 means tws1 is earlier; 0 means they are equal */
long twclock( );
/* twclock( &tws ) turns a tws into a time(3)-style clock value */
long twjuliandate( );
/* twjuliandate( &tws ) returns the Julian day number of a tws */
long twsubtract( );
/* twsubtract( &tws1, &tws2 ) returns seconds of difference */
/* These routines are functionally similar to the ctime(3) routines
in the standard Unix library. */
char *dctime( );
/* dctime( &tws ) returns a string for the date/time passed in */
struct tws *dlocaltime( );
/* dlocaltime( &clock ) turns a time(3) clock value into a tws */
struct tws *dgmtime( );
/* dgmtime( &clock ) turns a time(3) clock value into a tws */
char *dasctime( );
/* dasctime( &tws, flags ) turns a tws into a string */
char *dtimezone( );
/* dtimezone( offset, flags ) returns the name of the time zone */
char *dtimenow( );
/* dtimenow( ) returns a string for the current date/time */
struct tws *dparsetime( );
/* dparsetime( &str ) turns a string into a tws */
struct tws *dtwstime( );
/* dtwstime( ) returns a tws for the current date/time */
#ifdef ATZ
#define dtime(cl) dasctime( dlocaltime( cl ), TW_NULL )
#else
#define dtime(cl) dasctime( dlocaltime( cl ), TW_ZONE )
#endif
#define dtwszone(tw) dtimezone( tw -> tw_zone, tw -> tw_flags )
extern char *tw_dotw[], *tw_ldotw[], *tw_moty[];
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.