1 /* Parse a string, yielding a struct partime that describes it. */ 2 3 /* Copyright 1993, 1994, 1995, 1997 Paul Eggert 4 Distributed under license by the Free Software Foundation, Inc. 5 6 This file is part of RCS. 7 8 RCS is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 2, or (at your option) 11 any later version. 12 13 RCS is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with RCS; see the file COPYING. 20 If not, write to the Free Software Foundation, 21 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 22 23 Report problems and direct all questions to: 24 25 rcs-bugs@cs.purdue.edu 26 27 */ 28 29 #define TM_UNDEFINED (-1) 30 #define TM_DEFINED(x) (0 <= (x)) 31 32 /* #include <limits.h> if you want to use these symbols. */ 33 #define TM_LOCAL_ZONE LONG_MIN 34 #define TM_UNDEFINED_ZONE (LONG_MIN + 1) 35 36 struct partime 37 { 38 /* This structure describes the parsed time. 39 Only the following tm_* values in it are used: 40 sec, min, hour, mday, mon, year, wday, yday. 41 If TM_UNDEFINED (value), the parser never found the value. 42 The tm_year field is the actual year, not the year - 1900; 43 but see ymodulus below. */ 44 struct tm tm; 45 46 /* If !TM_UNDEFINED (ymodulus), 47 then tm.tm_year is actually modulo ymodulus. */ 48 int ymodulus; 49 50 /* Week of year, ISO 8601 style. 51 If TM_UNDEFINED (yweek), the parser never found yweek. 52 Weeks start on Mondays. 53 Week 1 includes Jan 4. */ 54 int yweek; 55 56 /* Seconds east of UTC; or TM_LOCAL_ZONE or TM_UNDEFINED_ZONE. */ 57 long zone; 58 }; 59 60 #if defined __STDC__ || has_prototypes 61 # define __PARTIME_P(x) x 62 #else 63 # define __PARTIME_P(x) () 64 #endif 65 66 char *partime __PARTIME_P ((char const *, struct partime *)); 67 char *parzone __PARTIME_P ((char const *, long *)); 68