meillo@0: /*
meillo@8: 	bday
meillo@0: 
meillo@8: 	Birthday/Anniversary reminder
meillo@0: 
meillo@8: 	(c) 2007 markus schnalke <meillo@marmaro.de>
meillo@9: 	(c) 1994-1999 AS Mortimer
meillo@0: 
meillo@8: 	This program is free software; you can redistribute it and/or
meillo@8: 	modify it under the terms of the GNU General Public License as
meillo@8: 	published by the Free Software Foundation; either version 2 of the
meillo@9: 	License, or (at your option) any later version.  You may also
meillo@9: 	distribute it under the Artistic License, as comes with Perl.
meillo@0: 
meillo@8: 	This program is distributed in the hope that it will be useful,
meillo@8: 	but WITHOUT ANY WARRANTY; without even the implied warranty of
meillo@8: 	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
meillo@0: 
meillo@8: 	You should have received a copy of the GNU General Public License
meillo@8: 	along with this program; if not, write to the Free Software
meillo@8: 	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
meillo@0: 
meillo@9: 	You should also have recieved a copy of the Artistic license with
meillo@9: 	this program.
meillo@9: 
meillo@8: ===============================================================================
meillo@0: 
meillo@8: 	Input is read through standard input. For example: bday < ~/.birthdays
meillo@8: 	The input (file) has to have the following format:
meillo@7: 
meillo@8: 	text=date flags
meillo@7: 
meillo@8: 	where:
meillo@8: 		date is yyyy-mm-dd
meillo@8: 		flags is ONE or ZERO of
meillo@8: 			bd  for a birthday (default)
meillo@8: 			ann for an anniversary
meillo@8: 			ev  for an event
meillo@8: 		and zero or more of
meillo@8: 			w <n> to set the warn-in-advance time to n days (don't include the
meillo@8: 				brackets! :)
meillo@8: 			to <date>
meillo@8: 			for <days>
meillo@8: 				to specify the length of time taken by an event, for example a holiday.
meillo@7: 
meillo@8: 	Lines preceeded by # are treated as comments.
meillo@7: 
meillo@8: 	Note: If you deviate from this format, I cannot guarantee anything about
meillo@8: 	it's behaviour. In most cases, it will just quietly ignore the error,
meillo@8: 	which probably isn't ideal behaviour. Oh, well.
meillo@7: 
meillo@8: ===============================================================================
meillo@8: */
meillo@7: 
meillo@8: 
meillo@8: /* standard time to warn in advance, when no explicit w flag is given. */
meillo@8: #define DEF_WARN 14
meillo@0: 
meillo@7: 
meillo@7: #include <stdarg.h>
meillo@0: #include <stdio.h>
meillo@0: #include <stdlib.h>
meillo@7: #include <string.h>
meillo@7: #include <sys/types.h>
meillo@7: #include <time.h>
meillo@7: #include <unistd.h>
meillo@0: 
meillo@7: 
meillo@7: 
meillo@7: /* ========== Global constants and data types */
meillo@7: 
meillo@7: 
meillo@7: /* month lengths etc */
meillo@7: #define isleapyear(y) ((y)%4==0 && ((y)%100 != 0 || (y)%400 == 0))
meillo@7: const unsigned MLENDAT[];
meillo@7: #define mlen(m,y) (MLENDAT[(m)-1] != -1 ? MLENDAT[(m)-1] : (isleapyear((y)) ? 29 : 28))
meillo@7: #define before(a,b) ((a).month < (b).month || ((a).month == (b).month && (a).day < (b).day))
meillo@7: #define ydelta(a,b) ((int) (b).year - (a).year + before((a),(b)))
meillo@7: 
meillo@7: /* -------- modifier flags */
meillo@7: #define F_MTYPE 0x07
meillo@7: #define F_TBIRTHDAY 1
meillo@7: #define F_TANNIVERSARY 2
meillo@7: #define F_TEVENT 3
meillo@7: 
meillo@7: /* flags processed immediately on encountering */
meillo@7: #define F_MIMMEDIATE 0x24
meillo@7: #define F_WTIME_P 0x08
meillo@7: #define F_FORDAYS 0x16
meillo@7: #define F_TODATE 0x24
meillo@7: 
meillo@8: struct _ftable {char* txt; unsigned flag;};
meillo@7: 
meillo@7: const struct _ftable FTABLE[];
meillo@7: 
meillo@7: struct date {
meillo@7:   unsigned day;
meillo@7:   unsigned month;
meillo@7:   unsigned year;
meillo@7: };
meillo@7: 
meillo@7: struct event {
meillo@8:   char* text;
meillo@7:   struct date date;
meillo@7:   struct date enddate;
meillo@7:   int warn;
meillo@7: };
meillo@7: 
meillo@7: typedef int (*prnfunc)(const char *);
meillo@7: 
meillo@7: /* ========== Global Variables */
meillo@7: 
meillo@7: struct event* readlist(void);
meillo@7: void gettoday(void);
meillo@8: unsigned delta(struct date*);
meillo@8: unsigned ddiff(struct date* D1, struct date* D2);
meillo@7: void liststrings(struct event* evl, prnfunc outf);
meillo@8: char* tdelta(struct date* d);
meillo@8: char* ttime(int yr, int mn, int wk, int dy);
meillo@8: int skptok(int j, char* ptr);
meillo@8: int evcmp(const void* e1, const void* e2);
meillo@7: 
meillo@7: 
meillo@7: struct date today;
meillo@7: int iDWarn   = DEF_WARN;
meillo@7: 
meillo@7: const unsigned MLENDAT[]={31,-1,31,30,31,30,31,31,30,31,30,31};
meillo@7: 
meillo@7: const struct _ftable FTABLE[] = {
meillo@7: 	{"bd", F_TBIRTHDAY},
meillo@7: 	{"ann",F_TANNIVERSARY},
meillo@7: 	{"ev", F_TEVENT},
meillo@7: 	{"w",  F_WTIME_P},
meillo@7: 	{"to", F_TODATE},
meillo@7: 	{"for", F_FORDAYS},
meillo@7: 	{NULL, 0}
meillo@7: };
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: /*
meillo@7: 	xmalloc/xrealloc functions
meillo@7: 	Note: the x* functions are lifted straight from the GNU libc info docs
meillo@7: 	$Id: xmalloc.c,v 1.2 1999/01/16 17:08:59 andy Exp $
meillo@7: */
meillo@7: 
meillo@7: void* xmalloc (size_t size) {
meillo@7: 	register void* value = malloc (size);
meillo@7: 	if (value == 0) {
meillo@7: 		fprintf(stderr, "virtual memory exhausted\n");
meillo@7: 		exit(1);
meillo@7: 	}
meillo@7: 	return value;
meillo@7: }
meillo@7: 
meillo@7: void* xrealloc (void* ptr, size_t size) {
meillo@7: 	register void* value = realloc (ptr, size);
meillo@7: 	if (value == 0) {
meillo@7: 		fprintf(stderr, "virtual memory exhausted\n");
meillo@7: 		exit(1);
meillo@7: 	}
meillo@7: 	return value;
meillo@7: }
meillo@7: 
meillo@8: 
meillo@7: /* ========== */
meillo@7: 
meillo@7: 
meillo@7: /* like strcat(), but lets the buffer automagically grow :-)
meillo@7:  * (needs local variable "size" with the buffer size) */
meillo@7: #define append(where, what) do {                            \
meillo@7: 	if (strlen(what) > (size - strlen(where))) {          \
meillo@7: 		xrealloc(where, size + 128 + strlen(what));   \
meillo@7: 		size += 128 + strlen(what);                   \
meillo@7: 	}                                                     \
meillo@7: 	strcat(where, what);                                  \
meillo@7: } while(0)
meillo@7: 
meillo@7: /* ========== */
meillo@7: 
meillo@7: /* returns delta(d) in days, weeks, months, etc
meillo@7:  * the returned buffer is malloc()ed, do not forget to free() it */
meillo@8: char* tdelta(struct date* d) {
meillo@7: 	int dy, wk, mn, yr;
meillo@8: 	char* tmp;
meillo@8: 	char* buf = xmalloc(128);
meillo@7: 	int size = 128;
meillo@7: 	*buf = 0;
meillo@7: 
meillo@7: 	switch (delta(d)) {
meillo@7: 		case 0:
meillo@7: 			append(buf, "today");
meillo@7: 			return buf;
meillo@7: 		case 1:
meillo@7: 			append(buf, "tomorrow");
meillo@7: 			return buf;
meillo@7: 		default:
meillo@7: 			/* like delta(), we ignore the year */
meillo@8: 			yr = -before(*d, today);
meillo@8: 			mn = d->month - today.month;
meillo@8: 			dy = d->day - today.day;
meillo@7: 
meillo@7: 			if (dy < 0) {
meillo@7: 				dy += mlen(today.month, today.year);
meillo@7: 				mn--;
meillo@7: 			}
meillo@7: 			if (mn < 0) {
meillo@7: 				mn += 12;
meillo@7: 				yr++;
meillo@7: 			}
meillo@7: 
meillo@7: 			wk = (dy / 7);
meillo@7: 			dy %= 7;
meillo@7: 
meillo@7: 			append(buf, "in ");
meillo@7: 			tmp = ttime(yr, mn, wk, dy);
meillo@7: 			append(buf, tmp);
meillo@7: 			free(tmp);
meillo@7: 
meillo@7: 			return buf;
meillo@7: 	}
meillo@7: }
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: /*
meillo@7: void donum(n,txt) {
meillo@7: 	do {
meillo@7: 		if (n > 0) {
meillo@7: 			snprintf(tmp, sizeof(tmp), "%d", n);
meillo@7: 			append(buf, tmp);
meillo@7: 			append(buf, " " txt);
meillo@7: 			if (n != 1)
meillo@7: 				append(buf, "s");
meillo@7: 			terms--;
meillo@7: 			if (orgterms > 1) {
meillo@7: 				if (terms == 1)
meillo@7: 					append(buf, " and ");
meillo@7: 				else if (terms > 1)
meillo@7: 					append(buf, ", ");
meillo@7: 			}
meillo@7: 		}
meillo@7: 	 } while(0)
meillo@7: }
meillo@7: */
meillo@7: 
meillo@7: 
meillo@7: #define donum(n,txt) do {                       \
meillo@7: 	if (n > 0) {                              \
meillo@7: 		snprintf(tmp, sizeof(tmp), "%d", n);   \
meillo@7: 		append(buf, tmp);                      \
meillo@7: 		append(buf, " " txt);                  \
meillo@7: 		if (n != 1)                            \
meillo@7: 			append(buf, "s");                   \
meillo@7: 		terms--;                               \
meillo@7: 		if (orgterms > 1) {                    \
meillo@7: 			if (terms == 1)                     \
meillo@7: 				append(buf, " and ");            \
meillo@7: 			else if (terms > 1)                 \
meillo@7: 				append(buf, ", ");               \
meillo@7: 		}                                      \
meillo@7: 	}                                         \
meillo@7: } while(0)
meillo@7: 
meillo@7: 
meillo@7: /* returns allocated buffer, don't forget to free() */
meillo@7: char* ttime(int yr, int mn, int wk, int dy) {
meillo@7: 	char* buf = xmalloc(128);
meillo@7: 	int size = 128;
meillo@7: 	int terms, orgterms;
meillo@7: 	char tmp[128];
meillo@7: 
meillo@7: 	*buf = 0; /* Initialize buffer */
meillo@7: 	terms = orgterms = (yr!=0) + (mn!=0) + (wk!=0) + (dy!=0);
meillo@7: 
meillo@7: 	donum(yr, "year");
meillo@7: 	donum(mn, "month");
meillo@7: 	donum(wk, "week");
meillo@7: 	donum(dy, "day");
meillo@7: 
meillo@7: 	return buf;
meillo@7: }
meillo@7: #undef donum
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: /* lists the birthdays in their string format, one by one, and passes the string to a function. */
meillo@7: void liststrings(struct event* evl, prnfunc outf) {
meillo@7: 	int i,j;
meillo@7: 	char *buf, *tmp;
meillo@7: 	int size;
meillo@7: 
meillo@7: 	for (i = 0; evl[i].text != NULL; i++) {
meillo@7: 		buf = xmalloc(128);
meillo@7: 		*buf = '\0';
meillo@7: 		size = 128;
meillo@7: 
meillo@7: 		if (evl[i].warn == -1 && delta(&(evl[i].date))==0) {
meillo@7: 			 append(buf, evl[i].text);
meillo@7: 		} else if (evl[i].enddate.day == 0) {
meillo@7: 			if (delta(&(evl[i].date)) <= evl[i].warn) {
meillo@7: 				append(buf, evl[i].text);
meillo@7: 				append(buf, " ");
meillo@7: 				tmp = tdelta(&(evl[i].date));
meillo@7: 				append(buf, tmp);
meillo@7: 				free(tmp);
meillo@7: 			}
meillo@7: 		} else {
meillo@7: 			if (delta(&(evl[i].date)) <= evl[i].warn) {
meillo@7: 				append(buf, evl[i].text);
meillo@7: 				append(buf, " for ");
meillo@14: 				/* +1 because, if the difference between two dates is one day,
meillo@14: 				   then the length of an event on those days is two days */
meillo@7: 				j = ddiff(&(evl[i].date),&(evl[i].enddate)) + 1;
meillo@7: 				tmp = ttime(0, 0, j/7, j%7);
meillo@7: 				append(buf, tmp);
meillo@7: 				free(tmp);
meillo@7: 				append(buf, " ");
meillo@7: 				tmp = tdelta(&(evl[i].date));
meillo@7: 				append(buf, tmp);
meillo@7: 			} else if (delta(&(evl[i].enddate)) <= evl[i].warn) {
meillo@7: 				append(buf, evl[i].text);
meillo@7: 				append(buf, " ");
meillo@7: 				j = delta(&(evl[i].enddate));
meillo@7: 				if (j) {
meillo@7: 					append(buf, "for ");
meillo@7: 					tmp = ttime(0, 0, j/7, j%7);
meillo@7: 					append(buf, tmp);
meillo@7: 					free(tmp);
meillo@7: 					append(buf, " longer");
meillo@7: 				} else {
meillo@7: 					append(buf, "finishes today");
meillo@7: 				}
meillo@7: 			}
meillo@7: 		}
meillo@7: 		if (*buf) {
meillo@7: 			append(buf, ".");
meillo@7: 			outf(buf);
meillo@7: 		}
meillo@7: 		free(buf);
meillo@7: 	}
meillo@7: }
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: /* sort the events by the time before the next time they come up, putting those
meillo@7: 	 where the start has passed but we are still in the time-period first */
meillo@8: int evcmp(const void* p1, const void* p2) {
meillo@8: 	struct event* e1=(struct event*) p1;
meillo@8: 	struct event* e2=(struct event*) p2;
meillo@8: 	unsigned d1, d2;
meillo@7: 
meillo@7: 	/* if the delta for the enddate is less than that for the start date, then we
meillo@7: 		have passed the start date but not yet the end date, and so we should
meillo@7: 		display the enddate; otherwise, we should display the start date */
meillo@7: 
meillo@7: 	d1=delta(&(e1->date));
meillo@7: 	if (e1->enddate.day && delta(&(e1->enddate)) < d1)
meillo@7: 		d1=delta(&(e1->enddate));
meillo@7: 
meillo@7: 	d2=delta(&(e2->date));
meillo@7: 	if (e2->enddate.day && delta(&(e2->enddate)) < d2)
meillo@7: 		d2=delta(&(e2->enddate));
meillo@7: 
meillo@7: 	if (d1 < d2) return -1;
meillo@8: 	if (d1 > d2) return 1;
meillo@7: 
meillo@7: 	return strcmp(e1->text, e2->text);
meillo@7: }
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: /* difference in days between two dates */
meillo@7: /* it is assumed that D1 < D2, and so the result is always positive */
meillo@8: unsigned ddiff(struct date* D1, struct date* D2) {
meillo@8: 	struct date d1, d2;
meillo@8: 	int dd, m;
meillo@7: 
meillo@7: 	/* make working copies */
meillo@8: 	d1 = *D1;
meillo@8: 	d2 = *D2;
meillo@7: 
meillo@7: 	/* sort out zero years */
meillo@7: 	if (d1.year == 0 || d2.year==0) {
meillo@7: 		if (d1.year != d2.year) {
meillo@7: 			if (d1.year == 0) {
meillo@8: 				if (before(d1,d2))
meillo@8: 					d1.year = d2.year;
meillo@8: 				else
meillo@8: 					d1.year = d2.year - 1;
meillo@8: 						} else {
meillo@8: 				if (before(d1, d2))
meillo@8: 					d2.year = d1.year;
meillo@8: 				else
meillo@8: 					d2.year = d1.year + 1;
meillo@7: 			}
meillo@7: 		} else { /* both years zero */
meillo@8: 			if (before(d1, d2))
meillo@8: 				d1.year = d2.year = today.year;
meillo@7: 			else {
meillo@8: 				d1.year = today.year;
meillo@8: 				d2.year = d1.year + 1;
meillo@7: 			}
meillo@7: 		}
meillo@7: 	}
meillo@7: 
meillo@7: 	/* now we can actually do the comparison ... */
meillo@8: 	dd = 0;
meillo@7: 
meillo@7: 	/* to start with, we work in months */
meillo@7: 	for (m=d1.month; m < d2.month + (d2.year-d1.year)*12; m++)
meillo@7: 		dd += mlen(((m-1)%12)+1, d1.year + m/12);
meillo@7: 
meillo@7: 	/* and then we renormalise for the days within the months */
meillo@7: 	/* the first month was included in our calculations */
meillo@7: 	dd -= d1.day;
meillo@7: 	/* but the last one wasn't */
meillo@7: 	dd += d2.day;
meillo@7: 
meillo@7: 	return dd;
meillo@7: }
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: /* actually until the next anniversary of ... */
meillo@7: unsigned delta(struct date *date) {
meillo@7: 	struct date d;
meillo@7: 	unsigned dt, mn;
meillo@7: 
meillo@7: 	memcpy(&d, date, sizeof(struct date));
meillo@7: 
meillo@7: 	/* past the end of the year */
meillo@7: 	if (before(d, today)) {
meillo@7: 		d.year = 1;
meillo@7: 	} else {
meillo@7: 		d.year = 0;
meillo@7: 	}
meillo@7: 
meillo@8: 	for (mn = today.month, dt=0; mn < d.month + 12*d.year; mn++) {
meillo@7: 		dt += mlen(((mn-1)%12) + 1,today.year + mn/12);
meillo@8: 	}
meillo@7: 
meillo@7: 	dt -= today.day;
meillo@7: 	dt += d.day;
meillo@7: 
meillo@7: 	return dt;
meillo@7: }
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: void gettoday(void) {
meillo@7: 	struct tm *tm;
meillo@7: 	time_t t;
meillo@7: 
meillo@7: 	time(&t);
meillo@7: 	tm = localtime(&t);
meillo@7: 	today.day = tm->tm_mday;
meillo@7: 	today.month = tm->tm_mon + 1; /* 1-12 instead of 0-11 */
meillo@7: 	today.year = tm->tm_year + 1900;
meillo@7: }
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: struct event* readlist() {
meillo@7: 	int i, j, k, l, d;
meillo@7: 	struct event *evl;
meillo@7: 	char buf[1024], buf2[1024];
meillo@7: 	char *ptr;
meillo@7: 	unsigned flags;
meillo@7: 
meillo@7: 	/* initialise */
meillo@7: 	gettoday();
meillo@7: 
meillo@7: 	for (i = 0, evl = NULL; fgets(buf, sizeof(buf), stdin) != NULL; i++) {
meillo@7: 		evl = (struct event *) xrealloc(evl, sizeof(struct event) * (i + 1));
meillo@7: 
meillo@7: 		/* ignore comments and empty lines */
meillo@7: 		if (*buf == '#' || *buf == '\n') {
meillo@7: 			i--;
meillo@7: 			continue;
meillo@7: 		}
meillo@7: 
meillo@7: 		/* parse string in buf */
meillo@7: 		ptr = strrchr(buf, '='); /* allow '=' in text */
meillo@7: 
meillo@7: 		/* not a valid line, so ignore it! Cool, huh? */
meillo@7: 		/* Attention: only recognizes lines without '=' */
meillo@7: 		if (ptr == NULL) {
meillo@7: 			fprintf(stderr, "WARNING: Invalid line in input:\n%s", buf);
meillo@7: 			i--;
meillo@7: 			continue;
meillo@7: 		}
meillo@7: 
meillo@7: 		*(ptr++) = 0;
meillo@7: 
meillo@7: 		j = sscanf(ptr, "%u-%u-%u", &(evl[i].date.year), &(evl[i].date.month), &(evl[i].date.day));
meillo@7: 		/* ... unless it wasn't read, in which case set it to zero */
meillo@7: 		if (j==2) {
meillo@7: 			evl[i].date.year = 0;
meillo@7: 		}
meillo@7: 
meillo@7: 
meillo@7: 		/* parse flags */
meillo@7: 
meillo@7: 		evl[i].warn = iDWarn;
meillo@7: 		evl[i].enddate.day = 0;
meillo@7: 		evl[i].enddate.month = 0;
meillo@7: 		evl[i].enddate.year = 0;
meillo@7: 
meillo@7: 		flags = 0;
meillo@7: 		j = 0;
meillo@7: 
meillo@7: 		while(j = skptok(j, ptr), ptr[j] != 0) {
meillo@7: 			for (k = 0; FTABLE[k].txt != NULL && strncmp(FTABLE[k].txt, ptr + j, strlen(FTABLE[k].txt)); k++) {
meillo@7: 			}
meillo@7: 
meillo@7: 			switch (FTABLE[k].flag) {
meillo@7: 				case F_WTIME_P: /* w <n> -- sets warning time */
meillo@7: 					sscanf(ptr + j, "w %u", &(evl[i].warn));
meillo@7: 					break;
meillo@7: 				case F_FORDAYS: /* for <days> -- sets the duration of the event */
meillo@7: 					sscanf(ptr + j, "for %u", &d);
meillo@7: 					evl[i].enddate=evl[i].date;
meillo@7: 					for (l = 1; l < d; l++) {
meillo@7: 						evl[i].enddate.day++;
meillo@7: 						if (evl[i].enddate.day > mlen(evl[i].enddate.month, evl[i].enddate.year)) {
meillo@7: 							evl[i].enddate.month++;
meillo@7: 							evl[i].enddate.day = 1;
meillo@7: 						}
meillo@7: 						if (evl[i].enddate.month > 12) {
meillo@7: 							evl[i].enddate.year++;
meillo@7: 							evl[i].enddate.month = 1;
meillo@7: 						}
meillo@7: 					}
meillo@7: 					break;
meillo@7: 				case F_TODATE: /* to <date> -- sets the end date of the event */
meillo@7: 					l = sscanf(ptr + j, "to %u-%u-%u", &(evl[i].enddate.year), &(evl[i].enddate.month), &(evl[i].enddate.day));
meillo@7: 					if (l == 2) {
meillo@7: 						evl[i].enddate.year = 0;
meillo@7: 					}
meillo@7: 					break;
meillo@7: 				case 0:
meillo@7: 					break;
meillo@7: 				default:
meillo@7: 					flags |= FTABLE[k].flag;
meillo@7: 					break;
meillo@7: 			}
meillo@7: 		}
meillo@7: 
meillo@7: 
meillo@7: 		/* construct event text */
meillo@7: 
meillo@7: 		switch(flags & F_MTYPE) {
meillo@7: 			case F_TBIRTHDAY:
meillo@7: 			default: /* assume it's a birthday */
meillo@7: 				if (evl[i].date.year != 0) {
meillo@7: 					int tmp_age = ydelta(evl[i].date, today);
meillo@7: 					if (tmp_age != 1) {
meillo@7: 						sprintf(buf2, "%s is %d years old", buf, tmp_age);
meillo@7: 					} else {
meillo@7: 						sprintf(buf2, "%s is %d year old", buf, tmp_age);
meillo@7: 					}
meillo@7: 				} else {
meillo@7: 					sprintf(buf2, "%s has a birthday", buf);
meillo@7: 				}
meillo@7: 				break;
meillo@7: 			case F_TANNIVERSARY:
meillo@7: 				if (evl[i].date.year != 0) {
meillo@7: 					sprintf(buf2, "%s %d years ago", buf, ydelta(evl[i].date, today));
meillo@7: 				} else {
meillo@7: 					strcpy(buf2, buf);
meillo@7: 				}
meillo@7: 				break;
meillo@7: 			case F_TEVENT:
meillo@7: 				/* if a year was specified, and this warning isn't for it, ignore! */
meillo@14: 				if ((evl[i].date.year != 0 && ydelta(evl[i].date, today) != 0)
meillo@14: 				    && (evl[i].enddate.year == 0 || ydelta(evl[i].enddate, today) != 0)) {
meillo@7: 					i--;
meillo@7: 					continue;
meillo@7: 				}
meillo@7: 				strcpy(buf2, buf);
meillo@7: 				break;
meillo@7: 		}
meillo@7: 		evl[i].text = strdup(buf2);
meillo@7: 	}
meillo@7: 
meillo@7: 	evl = (struct event *) xrealloc(evl, sizeof(struct event) * (i + 1));
meillo@7: 	evl[i].date.day = 0;
meillo@7: 	evl[i].date.month = 0;
meillo@7: 	evl[i].date.year = 0;
meillo@7: 	evl[i].text = (char *) NULL;
meillo@7: 
meillo@7: 	fclose(stdin);
meillo@7: 
meillo@7: 	/* NB uses i from above */
meillo@7: 	qsort(evl, i, sizeof(struct event), evcmp);
meillo@7: 	return evl;
meillo@7: }
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: int skptok(int j, char *ptr) {
meillo@7: 	for (; ptr[j] != 0 &&  ptr[j] != ' ' && ptr[j] != '\t' ; j++);
meillo@7: 	for (; ptr[j] != 0 && (ptr[j] == ' ' || ptr[j] == '\t'); j++);
meillo@7: 
meillo@7: 	return j;
meillo@7: }
meillo@7: 
meillo@7: 
meillo@7: 
meillo@7: 
meillo@0: 
meillo@0: 
meillo@6: int main(int argc, char* argv[]) {
meillo@0: 
meillo@0:   while (--argc > 0 && (*++argv)[0] == '-') {
meillo@5: 		if (strcmp(argv[0], "-W") == 0) {
meillo@6: 			/* TODO: catch if no value given */
meillo@0: 			iDWarn = atoi((++argv)[0]);
meillo@0: 			argc--;
meillo@0: 		} else {
meillo@3: 			fprintf(stderr, "unknown option %s\n", argv[0]);
meillo@0: 			exit(1);
meillo@0: 		}
meillo@0: 	}
meillo@0: 
meillo@6: 	liststrings(readlist(), puts);
meillo@0: 
meillo@0:   return 0;
meillo@0: }