meillo@0: /*
meillo@0:    birthday
meillo@0: 
meillo@0:    Birthday/Anniversary display on login
meillo@0: 
meillo@0:    (c) 1996 AS Mortimer
meillo@0: 
meillo@0:     This program is free software; you can redistribute it and/or
meillo@0:     modify it under the terms of the GNU General Public License as
meillo@0:     published by the Free Software Foundation; either version 2 of the
meillo@0:     License, or (at your option) any later version.  You may also
meillo@0:     distribute it under the Artistic License, as comes with Perl.
meillo@0: 
meillo@0:     This program is distributed in the hope that it will be useful,
meillo@0:     but WITHOUT ANY WARRANTY; without even the implied warranty of
meillo@0:     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
meillo@0: 
meillo@0:     You should have received a copy of the GNU General Public License
meillo@0:     along with this program; if not, write to the Free Software
meillo@0:     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
meillo@0: 
meillo@0:     You should also have recieved a copy of the Artistic license with
meillo@0:     this program.
meillo@0: 
meillo@0:    $Id: birthday.h,v 1.6 1999/04/25 14:01:29 andy Exp $
meillo@0: */
meillo@0: 
meillo@0: /* ========== Configuration section */
meillo@0: 
meillo@0: #define DEFAULT_FILE ".birthdays"
meillo@0: 
meillo@0: /* standard time to warn in advance, when no explicit w flag is given. */
meillo@0: #define DEF_WARN 21
meillo@0: /* maximum time to warn in advance when no M flag is given */
meillo@0: #define MAX_WARN 500 /* ie, a year */
meillo@0: /* minimum time to warn in advance when no m flag */
meillo@0: #define MIN_WARN 0
meillo@0: 
meillo@0: /* ========== Required includes */
meillo@0: 
meillo@0: #include <stdio.h>
meillo@0: 
meillo@0: /* ========== Global constants and data types */
meillo@0: 
meillo@0: 
meillo@0: /* month lengths etc */
meillo@0: 
meillo@0: #define isleapyear(y) ((y)%4==0 && ((y)%100 != 0 || (y)%400 == 0))
meillo@0: extern const unsigned MLENDAT[];
meillo@0: #define mlen(m,y) (MLENDAT[(m)-1] != -1 ? MLENDAT[(m)-1] : (isleapyear((y)) ? 29 : 28))
meillo@0: #define before(a,b) ((a).month < (b).month || ((a).month == (b).month && (a).day < (b).day))
meillo@0: #define ydelta(a,b) ((int) (b).year - (a).year + before((a),(b)))
meillo@0: #define warnperiod(ev) ((ev).warn<iMinWarn?iMinWarn:((ev).warn>iMaxWarn?iMaxWarn:(ev).warn))
meillo@0: 
meillo@0: /* -------- modifier flags */
meillo@0: 
meillo@0: #define F_MTYPE 0x07
meillo@0: #define F_TBIRTHDAY 1
meillo@0: #define F_TANNIVERSARY 2
meillo@0: #define F_TEVENT 3
meillo@0: #define F_TMESSAGE 4
meillo@0: 
meillo@0: /* flags processed immediately on encountering */
meillo@0: #define F_MIMMEDIATE 0x24
meillo@0: #define F_WTIME_P 0x08
meillo@0: #define F_FORDAYS 0x16
meillo@0: #define F_TODATE 0x24
meillo@0: 
meillo@0: struct _ftable {char *txt; unsigned flag;};
meillo@0: 
meillo@0: extern const struct _ftable FTABLE[];
meillo@0: 
meillo@0: struct date {
meillo@0:   unsigned day;
meillo@0:   unsigned month;
meillo@0:   unsigned year;
meillo@0: };
meillo@0: 
meillo@0: struct event {
meillo@0:   char *text;
meillo@0:   struct date date;
meillo@0:   struct date enddate;
meillo@0:   int warn;
meillo@0: };
meillo@0: 
meillo@0: typedef int (*prnfunc)(const char *);
meillo@0: 
meillo@0: /* ========== */
meillo@0: 
meillo@0: struct event *readlist(char *fname);
meillo@0: void gettoday(void);
meillo@0: unsigned delta(struct date *);
meillo@0: unsigned ddiff(struct date *D1, struct date *D2);
meillo@0: void liststrings(struct event *evl, prnfunc outf);
meillo@0: char *tdelta(struct date *d);
meillo@0: char *ttime(int yr, int mn, int wk, int dy);
meillo@0: 
meillo@0: /* ========== Global Variables */
meillo@0: 
meillo@0: extern struct date today;
meillo@0: extern int iDWarn;
meillo@0: extern int iMaxWarn;
meillo@0: extern int iMinWarn;
meillo@0: