Monotone-Parent: 4e8caa9222644e6820515bbf312f74dbd372c2fc

Monotone-Revision: 25c172f93ef4ab6ada0aeb6ff4267e98aef8b719

Monotone-Author: wsourdeau@inverse.ca
Monotone-Date: 2008-12-10T18:57:55
Monotone-Branch: ca.inverse.sogo
maint-2.0.2
Wolfgang Sourdeau 2008-12-10 18:57:55 +00:00
parent b8b4c6b5d3
commit ff33d95a42
4 changed files with 526 additions and 469 deletions

View File

@ -128,25 +128,22 @@
return ranges;
}
- (NSCalendarDate *) lastInstanceStartDate
- (NSCalendarDate *) lastInstanceStartDate
{
NSCalendarDate *firStart, *lastInstanceStartDate;
if ([rrule repeatCount] > 0)
{
long jnFirst, jnRuleLast;
NSCalendarDate *firStart, *until;
firStart = [firstRange startDate];
jnFirst = [firStart julianNumber];
jnRuleLast = ([rrule repeatInterval] *
[rrule repeatCount]) +
jnFirst;
until = [NSCalendarDate dateForJulianNumber:jnRuleLast];
until = [until hour: [firStart hourOfDay]
minute: [firStart minuteOfHour]
second: [firStart secondOfMinute]];
return until;
lastInstanceStartDate = [firStart dateByAddingYears: 0 months: 0
days: ([rrule repeatInterval]
* [rrule repeatCount])];
}
return [super lastInstanceStartDate];
else
lastInstanceStartDate = [super lastInstanceStartDate];
return lastInstanceStartDate;
}
@end /* iCalDailyRecurrenceCalculator */

View File

@ -32,8 +32,10 @@
#import "NSCalendarDate+ICal.h"
#import <string.h>
@interface iCalRecurrenceCalculator(PrivateAPI)
- (NSCalendarDate *)lastInstanceStartDate;
@interface iCalRecurrenceCalculator (PrivateAPI)
- (NSCalendarDate *) lastInstanceStartDate;
@end
// #define HEAVY_DEBUG 1
@ -44,7 +46,8 @@ typedef BOOL NGMonthSet[12];
typedef BOOL NGMonthDaySet[32]; // 0 is unused
static void
NGMonthDaySet_clear(NGMonthDaySet *daySet)
NGMonthDaySet_clear (NGMonthDaySet *daySet)
{
register unsigned i;
@ -53,70 +56,81 @@ NGMonthDaySet_clear(NGMonthDaySet *daySet)
}
static void
NGMonthDaySet_copyOrUnion(NGMonthDaySet *base, NGMonthDaySet *new,
BOOL doCopy)
NGMonthDaySet_copyOrUnion (NGMonthDaySet *base, NGMonthDaySet *new,
BOOL doCopy)
{
register unsigned i;
if (doCopy)
memcpy(base, new, sizeof(NGMonthDaySet));
else {
for (i = 1; i <= 31; i++) {
if (!(*new)[i])
(*base)[i] = NO;
memcpy (base, new, sizeof (NGMonthDaySet));
else
{
for (i = 1; i <= 31; i++)
{
if (! (*new)[i])
(*base)[i] = NO;
}
}
}
}
static BOOL NGMonthDaySet_fillWithByMonthDay(NGMonthDaySet *daySet,
NSArray *byMonthDay)
static BOOL NGMonthDaySet_fillWithByMonthDay (NGMonthDaySet *daySet,
NSArray *byMonthDay)
{
/* list of days in the month */
unsigned i, count;
BOOL ok;
NGMonthDaySet_clear(daySet);
NGMonthDaySet_clear (daySet);
for (i = 0, count = [byMonthDay count], ok = YES; i < count; i++) {
int dayInMonth; /* -31..-1 and 1..31 */
for (i = 0, count = [byMonthDay count], ok = YES; i < count; i++)
{
int dayInMonth; /* -31..-1 and 1..31 */
if ((dayInMonth = [[byMonthDay objectAtIndex:i] intValue]) == 0) {
ok = NO;
continue; /* invalid value */
}
if (dayInMonth > 31) {
ok = NO;
continue; /* error, value to large */
}
if (dayInMonth < -31) {
ok = NO;
continue; /* error, value to large */
}
if ((dayInMonth = [[byMonthDay objectAtIndex: i] intValue]) == 0)
{
ok = NO;
continue; /* invalid value */
}
if (dayInMonth > 31)
{
ok = NO;
continue; /* error, value to large */
}
if (dayInMonth < -31)
{
ok = NO;
continue; /* error, value to large */
}
/* adjust negative days */
/* adjust negative days */
if (dayInMonth < 0) {
/* eg: -1 == last day in month, 30 days => 30 */
dayInMonth = 32 - dayInMonth /* because we count from 1 */;
}
if (dayInMonth < 0)
{
/* eg: -1 == last day in month, 30 days => 30 */
dayInMonth = 32 - dayInMonth /* because we count from 1 */;
}
(*daySet)[dayInMonth] = YES;
}
(*daySet)[dayInMonth] = YES;
}
return ok;
}
static inline unsigned iCalDoWForNSDoW(int dow) {
switch (dow) {
case 0: return iCalWeekDaySunday;
case 1: return iCalWeekDayMonday;
case 2: return iCalWeekDayTuesday;
case 3: return iCalWeekDayWednesday;
case 4: return iCalWeekDayThursday;
case 5: return iCalWeekDayFriday;
case 6: return iCalWeekDaySaturday;
case 7: return iCalWeekDaySunday;
default: return 0;
}
static inline unsigned iCalDoWForNSDoW (int dow)
{
switch (dow)
{
case 0: return iCalWeekDaySunday;
case 1: return iCalWeekDayMonday;
case 2: return iCalWeekDayTuesday;
case 3: return iCalWeekDayWednesday;
case 4: return iCalWeekDayThursday;
case 5: return iCalWeekDayFriday;
case 6: return iCalWeekDaySaturday;
case 7: return iCalWeekDaySunday;
default: return 0;
}
}
#if HEAVY_DEBUG
@ -125,11 +139,12 @@ static NSString *dowEN[8] = {
};
#endif
static void NGMonthDaySet_fillWithByDayX(NGMonthDaySet *daySet,
unsigned dayMask,
unsigned firstDoWInMonth,
unsigned numberOfDaysInMonth,
int occurrence1)
static void NGMonthDaySet_fillWithByDayX (NGMonthDaySet *daySet,
unsigned dayMask,
unsigned firstDoWInMonth,
unsigned numberOfDaysInMonth,
int occurrence1)
{
// TODO: this is called 'X' because the API doesn't allow for full iCalendar
// functionality. The daymask must be a list of occurence+dow
@ -137,78 +152,86 @@ static void NGMonthDaySet_fillWithByDayX(NGMonthDaySet *daySet,
register int dow; /* current day of the week */
int occurrences[7] = { 0, 0, 0, 0, 0, 0, 0 } ;
NGMonthDaySet_clear(daySet);
NGMonthDaySet_clear (daySet);
if (occurrence1 >= 0) {
for (dayInMonth = 1, dow = firstDoWInMonth; dayInMonth<=31; dayInMonth++) {
// TODO: complete me
if (occurrence1 >= 0)
{
for (dayInMonth = 1, dow = firstDoWInMonth; dayInMonth<=31; dayInMonth++)
{
// TODO: complete me
if (dayMask & iCalDoWForNSDoW(dow)) {
if (occurrence1 == 0)
(*daySet)[dayInMonth] = YES;
else { /* occurrence1 > 0 */
occurrences[dow] = occurrences[dow] + 1;
if (dayMask & iCalDoWForNSDoW (dow))
{
if (occurrence1 == 0)
(*daySet)[dayInMonth] = YES;
else { /* occurrence1 > 0 */
occurrences[dow] = occurrences[dow] + 1;
if (occurrences[dow] == occurrence1)
(*daySet)[dayInMonth] = YES;
}
}
if (occurrences[dow] == occurrence1)
(*daySet)[dayInMonth] = YES;
}
}
dow = (dow == 6 /* Sat */) ? 0 /* Sun */ : (dow + 1);
}
}
else {
int lastDoWInMonthSet;
/* get the last dow in the set (not necessarily the month!) */
for (dayInMonth = 1, dow = firstDoWInMonth;
dayInMonth < numberOfDaysInMonth;dayInMonth++)
dow = (dow == 6 /* Sat */) ? 0 /* Sun */ : (dow + 1);
lastDoWInMonthSet = dow;
#if HEAVY_DEBUG
NSLog(@"LAST DOW IN SET: %i / %@",
lastDoWInMonthSet, dowEN[lastDoWInMonthSet]);
#endif
/* start at the end of the set */
for (dayInMonth = numberOfDaysInMonth, dow = lastDoWInMonthSet;
dayInMonth >= 1; dayInMonth--) {
// TODO: complete me
#if HEAVY_DEBUG
NSLog(@" CHECK day-of-month %02i, "
@" dow=%i/%@ (first=%i/%@, last=%i/%@)",
dayInMonth,
dow, dowEN[dow],
firstDoWInMonth, dowEN[firstDoWInMonth],
lastDoWInMonthSet, dowEN[lastDoWInMonthSet]
);
#endif
if (dayMask & iCalDoWForNSDoW(dow)) {
occurrences[dow] = occurrences[dow] + 1;
#if HEAVY_DEBUG
NSLog(@" MATCH %i/%@ count: %i occurences=%i",
dow, dowEN[dow], occurrences[dow], occurrence1);
#endif
if (occurrences[dow] == -occurrence1) {
#if HEAVY_DEBUG
NSLog(@" COUNT MATCH");
#endif
(*daySet)[dayInMonth] = YES;
dow = (dow == 6 /* Sat */) ? 0 /* Sun */ : (dow + 1);
}
}
else
{
int lastDoWInMonthSet;
/* get the last dow in the set (not necessarily the month!) */
for (dayInMonth = 1, dow = firstDoWInMonth;
dayInMonth < numberOfDaysInMonth;dayInMonth++)
dow = (dow == 6 /* Sat */) ? 0 /* Sun */ : (dow + 1);
lastDoWInMonthSet = dow;
#if HEAVY_DEBUG
NSLog (@"LAST DOW IN SET: %i / %@",
lastDoWInMonthSet, dowEN[lastDoWInMonthSet]);
#endif
/* start at the end of the set */
for (dayInMonth = numberOfDaysInMonth, dow = lastDoWInMonthSet;
dayInMonth >= 1; dayInMonth--)
{
// TODO: complete me
#if HEAVY_DEBUG
NSLog (@" CHECK day-of-month %02i, "
@" dow=%i/%@ (first=%i/%@, last=%i/%@)",
dayInMonth,
dow, dowEN[dow],
firstDoWInMonth, dowEN[firstDoWInMonth],
lastDoWInMonthSet, dowEN[lastDoWInMonthSet]
);
#endif
if (dayMask & iCalDoWForNSDoW (dow))
{
occurrences[dow] = occurrences[dow] + 1;
#if HEAVY_DEBUG
NSLog (@" MATCH %i/%@ count: %i occurences=%i",
dow, dowEN[dow], occurrences[dow], occurrence1);
#endif
if (occurrences[dow] == -occurrence1)
{
#if HEAVY_DEBUG
NSLog (@" COUNT MATCH");
#endif
(*daySet)[dayInMonth] = YES;
}
}
dow = (dow == 0 /* Sun */) ? 6 /* Sat */ : (dow - 1);
}
}
dow = (dow == 0 /* Sun */) ? 6 /* Sat */ : (dow - 1);
}
}
}
- (BOOL)_addInstanceWithStartDate:(NSCalendarDate *)_startDate
limitDate:(NSCalendarDate *)_until
limitRange:(NGCalendarDateRange *)_r
toArray:(NSMutableArray *)_ranges
- (BOOL) _addInstanceWithStartDate: (NSCalendarDate *)_startDate
limitDate: (NSCalendarDate *)_until
limitRange: (NGCalendarDateRange *)_r
toArray: (NSMutableArray *)_ranges
{
NGCalendarDateRange *r;
NSCalendarDate *end;
@ -218,29 +241,32 @@ static void NGMonthDaySet_fillWithByDayX(NGMonthDaySet *daySet,
// TODO: I think we should check in here whether we succeeded the
// repeatCount. Currently we precalculate that info in the
// -lastInstanceStartDate method.
if (_until != nil) {
/* Note: the 'until' in the rrule is inclusive as per spec */
if ([_until compare:_startDate] == NSOrderedAscending)
/* start after until */
return NO; /* Note: we assume that the algorithm is sequential */
}
if (_until != nil)
{
/* Note: the 'until' in the rrule is inclusive as per spec */
if ([_until compare: _startDate] == NSOrderedAscending)
/* start after until */
return NO; /* Note: we assume that the algorithm is sequential */
}
/* create end date */
end = [_startDate addTimeInterval:[self->firstRange duration]];
[end setTimeZone:[_startDate timeZone]];
end = [_startDate addTimeInterval: [firstRange duration]];
[end setTimeZone: [_startDate timeZone]];
/* create range and check whether its in the requested range */
r = [[NGCalendarDateRange alloc] initWithStartDate:_startDate endDate:end];
if ([_r containsDateRange:r])
[_ranges addObject:r];
r = [[NGCalendarDateRange alloc] initWithStartDate: _startDate endDate: end];
if ([_r containsDateRange: r])
[_ranges addObject: r];
[r release]; r = nil;
return YES;
}
- (NSArray *)recurrenceRangesWithinCalendarDateRange:(NGCalendarDateRange *)_r{
- (NSArray *)
recurrenceRangesWithinCalendarDateRange: (NGCalendarDateRange *) _r
{
/* main entry */
// TODO: check whether this is OK for multiday-events!
NSMutableArray *ranges;
@ -257,214 +283,225 @@ static void NGMonthDaySet_fillWithByDayX(NGMonthDaySet *daySet,
NSArray *byMonthDay; // array of ints (-31..-1 and 1..31)
NGMonthDaySet byMonthDaySet;
eventStartDate = [self->firstRange startDate];
eventStartDate = [firstRange startDate];
eventDayOfMonth = [eventStartDate dayOfMonth];
timeZone = [eventStartDate timeZone];
rStart = [_r startDate];
rEnd = [_r endDate];
interval = [self->rrule repeatInterval];
interval = [rrule repeatInterval];
until = [self lastInstanceStartDate]; // TODO: maybe replace
byMonthDay = [self->rrule byMonthDay];
byMonthDay = [rrule byMonthDay];
/* check whether the range to be processed is beyond the 'until' date */
if (until) {
if ([until compare:rStart] == NSOrderedAscending) /* until before start */
return nil;
if ([until compare:rEnd] == NSOrderedDescending) /* end before until */
rEnd = until; // TODO: why is that? end is _before_ until?
}
if (until)
{
if ([until compare: rStart] == NSOrderedAscending) /* until before start */
return nil;
if ([until compare: rEnd] == NSOrderedDescending) /* end before until */
rEnd = until; // TODO: why is that? end is _before_ until?
}
/* precalculate month days (same for all instances) */
if (byMonthDay) {
if (byMonthDay)
{
#if HEAVY_DEBUG
NSLog(@"byMonthDay: %@", byMonthDay);
NSLog (@"byMonthDay: %@", byMonthDay);
#endif
NGMonthDaySet_fillWithByMonthDay(&byMonthDaySet, byMonthDay);
}
NGMonthDaySet_fillWithByMonthDay (&byMonthDaySet, byMonthDay);
}
// TODO: I think the 'diff' is to skip recurrence which are before the
// requested range. Not sure whether this is actually possible, eg
// the repeatCount must be processed from the start.
diff = [eventStartDate monthsBetweenDate:rStart];
if ((diff != 0) && [rStart compare:eventStartDate] == NSOrderedAscending)
diff = [eventStartDate monthsBetweenDate: rStart];
if ((diff != 0) && [rStart compare: eventStartDate] == NSOrderedAscending)
diff = -diff;
numberOfMonthsInRange = [rStart monthsBetweenDate:rEnd] + 1;
ranges = [NSMutableArray arrayWithCapacity:numberOfMonthsInRange];
numberOfMonthsInRange = [rStart monthsBetweenDate: rEnd] + 1;
ranges = [NSMutableArray arrayWithCapacity: numberOfMonthsInRange];
/*
Note: we do not add 'eventStartDate', this is intentional, the event date
itself is _not_ necessarily part of the sequence, eg with monthly
byday recurrences.
itself is _not_ necessarily part of the sequence, eg with monthly
byday recurrences.
*/
for (monthIdxInRange = 0; monthIdxInRange < numberOfMonthsInRange;
monthIdxInRange++) {
NSCalendarDate *cursor;
unsigned numDaysInMonth;
int monthIdxInRecurrence, dom;
NGMonthDaySet monthDays;
BOOL didByFill, doCont;
monthIdxInRange++)
{
NSCalendarDate *cursor;
unsigned numDaysInMonth;
int monthIdxInRecurrence, dom;
NGMonthDaySet monthDays;
BOOL didByFill, doCont;
monthIdxInRecurrence = diff + monthIdxInRange;
monthIdxInRecurrence = diff + monthIdxInRange;
if (monthIdxInRecurrence < 0)
continue;
if (monthIdxInRecurrence < 0)
continue;
/* first check whether we are in the interval */
/* first check whether we are in the interval */
if ((monthIdxInRecurrence % interval) != 0)
continue;
if ((monthIdxInRecurrence % interval) != 0)
continue;
/*
Then the sequence is:
- check whether the month is in the BYMONTH list
*/
/*
Then the sequence is:
- check whether the month is in the BYMONTH list
*/
/*
Note: the function below adds exactly a month, eg:
2007-01-30 + 1month => 2007-02-*28*!!
*/
cursor = [eventStartDate dateByAddingYears:0
months:(diff + monthIdxInRange)
days:0];
[cursor setTimeZone:timeZone];
numDaysInMonth = [cursor numberOfDaysInMonth];
/*
Note: the function below adds exactly a month, eg:
2007-01-30 + 1month => 2007-02-*28*!!
*/
cursor = [eventStartDate dateByAddingYears: 0
months: (diff + monthIdxInRange)
days: 0];
[cursor setTimeZone: timeZone];
numDaysInMonth = [cursor numberOfDaysInMonth];
/* check whether we match the bymonth specification */
/* check whether we match the bymonth specification */
if (!byMonthList[[cursor monthOfYear] - 1])
continue;
if (!byMonthList[[cursor monthOfYear] - 1])
continue;
/* check 'day level' byXYZ rules */
/* check 'day level' byXYZ rules */
didByFill = NO;
didByFill = NO;
if (byMonthDay) { /* list of days in the month */
NGMonthDaySet_copyOrUnion(&monthDays, &byMonthDaySet, !didByFill);
didByFill = YES;
}
if (byMonthDay)
{ /* list of days in the month */
NGMonthDaySet_copyOrUnion (&monthDays, &byMonthDaySet, !didByFill);
didByFill = YES;
}
if ([self->rrule byDayMask] != 0) { // TODO: replace the mask with an array
NGMonthDaySet ruleset;
unsigned firstDoWInMonth;
if ([rrule byDayMask] != 0)
{ // TODO: replace the mask with an array
NGMonthDaySet ruleset;
unsigned firstDoWInMonth;
firstDoWInMonth = [[cursor firstDayOfMonth] dayOfWeek];
firstDoWInMonth = [[cursor firstDayOfMonth] dayOfWeek];
NGMonthDaySet_fillWithByDayX(&ruleset,
[self->rrule byDayMask],
firstDoWInMonth,
[cursor numberOfDaysInMonth],
[self->rrule byDayOccurence1]);
NGMonthDaySet_copyOrUnion(&monthDays, &ruleset, !didByFill);
didByFill = YES;
}
NGMonthDaySet_fillWithByDayX (&ruleset,
[rrule byDayMask],
firstDoWInMonth,
[cursor numberOfDaysInMonth],
[rrule byDayOccurence1]);
NGMonthDaySet_copyOrUnion (&monthDays, &ruleset, !didByFill);
didByFill = YES;
}
if (!didByFill) {
/* no rules applied, take the dayOfMonth of the startDate */
NGMonthDaySet_clear(&monthDays);
monthDays[eventDayOfMonth] = YES;
}
if (!didByFill)
{
/* no rules applied, take the dayOfMonth of the startDate */
NGMonthDaySet_clear (&monthDays);
monthDays[eventDayOfMonth] = YES;
}
// TODO: add processing of byhour/byminute/bysecond etc
// TODO: add processing of byhour/byminute/bysecond etc
/*
Next step is to create NSCalendarDate instances from our 'monthDays'
set. We walk over each day of the 'monthDays' set. If its flag isn't
set, we continue.
If its set, we add the date to the instance.
/*
Next step is to create NSCalendarDate instances from our 'monthDays'
set. We walk over each day of the 'monthDays' set. If its flag isn't
set, we continue.
If its set, we add the date to the instance.
The 'cursor' is the *startdate* of the event (not necessarily a
component of the sequence!) plus the currently processed month.
Eg:
The 'cursor' is the *startdate* of the event (not necessarily a
component of the sequence!) plus the currently processed month.
Eg:
startdate: 2007-01-30
cursor[1]: 2007-01-30
cursor[2]: 2007-02-28 <== Note: we have February!
*/
*/
for (dom = 1, doCont = YES; dom <= numDaysInMonth && doCont; dom++) {
NSCalendarDate *start;
for (dom = 1, doCont = YES; dom <= numDaysInMonth && doCont; dom++)
{
NSCalendarDate *start;
if (!monthDays[dom])
continue;
if (!monthDays[dom])
continue;
// TODO: what is this good for?
/*
Here we need to correct the date. Remember that the startdate given in
the event is not necessarily a date of the sequence!
// TODO: what is this good for?
/*
Here we need to correct the date. Remember that the startdate given in
the event is not necessarily a date of the sequence!
The 'numDaysInMonth' localvar contains the number of days in the
current month (eg 31 for Januar, 28 for most February's, etc)
The 'numDaysInMonth' localvar contains the number of days in the
current month (eg 31 for Januar, 28 for most February's, etc)
Eg: MONTHLY;BYDAY=-1WE (last wednesday, every month)
Eg: MONTHLY;BYDAY=-1WE (last wednesday, every month)
cursor: 2007-01-30 (eventDayOfMonth = 30)
=>start: 2007-01-31 (dom = 31)
cursor: 2007-02-28 (eventDayOfMonth = 30)
=>start: 2007-02-28 (dom = 28)
cursor: 2007-01-30 (eventDayOfMonth = 30)
=>start: 2007-01-31 (dom = 31)
cursor: 2007-02-28 (eventDayOfMonth = 30)
=>start: 2007-02-28 (dom = 28)
Note: in case the cursor already had an event-day overflow, that is the
'eventDayOfMonth' is bigger than the 'numDaysInMonth', the cursor
will already be corrected!
Eg:
start was: 2007-01-30
cursor will be: 2007-02-28
*/
if (eventDayOfMonth == dom) {
start = cursor;
}
else {
int maxDay =
eventDayOfMonth > numDaysInMonth ? numDaysInMonth : eventDayOfMonth;
Note: in case the cursor already had an event-day overflow, that is the
'eventDayOfMonth' is bigger than the 'numDaysInMonth', the cursor
will already be corrected!
Eg:
start was: 2007-01-30
cursor will be: 2007-02-28
*/
if (eventDayOfMonth == dom)
{
start = cursor;
}
else
{
int maxDay =
eventDayOfMonth > numDaysInMonth ? numDaysInMonth : eventDayOfMonth;
start = [cursor dateByAddingYears:0 months:0 days:(dom - maxDay)];
}
start = [cursor dateByAddingYears: 0 months: 0 days: (dom - maxDay)];
}
/*
Setup for 2007-02-28, MONTHLY;BYDAY=-1WE.
dom: 28
eventDayOfMonth: 31
cursor: 2007-02-28
start: 2007-02-25 <== WRONG
*/
/*
Setup for 2007-02-28, MONTHLY;BYDAY=-1WE.
dom: 28
eventDayOfMonth: 31
cursor: 2007-02-28
start: 2007-02-25 <== WRONG
*/
#if HEAVY_DEBUG
NSLog(@"DOM %i EDOM %i NUMDAYS %i START: %@ CURSOR: %@",
dom, eventDayOfMonth, numDaysInMonth,
start, cursor);
NSLog (@"DOM %i EDOM %i NUMDAYS %i START: %@ CURSOR: %@",
dom, eventDayOfMonth, numDaysInMonth,
start, cursor);
#endif
doCont = [self _addInstanceWithStartDate:start
limitDate:until
limitRange:_r
toArray:ranges];
doCont = [self _addInstanceWithStartDate: start
limitDate: until
limitRange: _r
toArray: ranges];
}
if (!doCont) break; /* reached some limit */
}
if (!doCont) break; /* reached some limit */
}
return ranges;
}
- (NSCalendarDate *)lastInstanceStartDate {
if ([self->rrule repeatCount] > 0) {
NSCalendarDate *until;
unsigned months, interval;
- (NSCalendarDate *) lastInstanceStartDate
{
if ([rrule repeatCount] > 0)
{
NSCalendarDate *until;
unsigned months, interval;
interval = [self->rrule repeatInterval];
months = [self->rrule repeatCount] - 1 /* the first counts as one! */;
interval = [rrule repeatInterval];
months = [rrule repeatCount] - 1 /* the first counts as one! */;
if (interval > 0)
months *= interval;
if (interval > 0)
months *= interval;
until = [[self->firstRange startDate] dateByAddingYears:0
months:months
days:0];
return until;
}
until = [[firstRange startDate] dateByAddingYears: 0
months: months
days: 0];
return until;
}
return [super lastInstanceStartDate];
}

View File

@ -1,20 +1,20 @@
/*
Copyright (C) 2004-2005 SKYRIX Software AG
This file is part of SOPE.
SOPE is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
SOPE is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public
License along with SOPE; see the file COPYING. If not, write to the
License along with SOPE; see the file COPYING. If not, write to the
Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
*/
@ -34,17 +34,17 @@
- (NSCalendarDate *) lastInstanceStartDate;
- (unsigned) offsetFromSundayForJulianNumber:(long)_jn;
- (unsigned) offsetFromSundayForWeekDay:(iCalWeekDay)_weekDay;
- (unsigned) offsetFromSundayForJulianNumber: (long) _jn;
- (unsigned) offsetFromSundayForWeekDay: (iCalWeekDay) _weekDay;
- (unsigned) offsetFromSundayForCurrentWeekStart;
- (iCalWeekDay) weekDayForJulianNumber:(long)_jn;
- (iCalWeekDay) weekDayForJulianNumber: (long) _jn;
@end
/*
TODO: If BYDAY is specified, lastInstanceStartDate and recurrences will
differ significantly!
TODO: If BYDAY is specified, lastInstanceStartDate and recurrences will
differ significantly!
*/
@implementation iCalWeeklyRecurrenceCalculator
@ -53,140 +53,156 @@
{
NSMutableArray *ranges;
NSCalendarDate *firStart;
long i, jnFirst, jnStart, jnEnd, startEndCount;
unsigned interval, byDayMask;
long i, jnFirst, jnStart, jnEnd, startEndCount;
unsigned interval, byDayMask;
firStart = [self->firstRange startDate];
jnFirst = [firStart julianNumber];
jnEnd = [[_r endDate] julianNumber];
firStart = [firstRange startDate];
jnFirst = [firStart julianNumber];
jnEnd = [[_r endDate] julianNumber];
if (jnFirst > jnEnd)
return nil;
jnStart = [[_r startDate] julianNumber];
interval = [self->rrule repeatInterval];
jnStart = [[_r startDate] julianNumber];
interval = [rrule repeatInterval];
/* if rule is bound, check the bounds */
if (![self->rrule isInfinite]) {
NSCalendarDate *until;
long jnRuleLast;
until = [self->rrule untilDate];
if (until) {
if ([until compare:[_r startDate]] == NSOrderedAscending)
return nil;
jnRuleLast = [until julianNumber];
if (![rrule isInfinite])
{
NSCalendarDate *until;
long jnRuleLast;
until = [rrule untilDate];
if (until)
{
if ([until compare: [_r startDate]] == NSOrderedAscending)
return nil;
jnRuleLast = [until julianNumber];
}
else
{
jnRuleLast = (interval * [rrule repeatCount] * 7)
+ jnFirst;
if (jnRuleLast < jnStart)
return nil;
}
/* jnStart < jnRuleLast < jnEnd ? */
if (jnEnd > jnRuleLast)
jnEnd = jnRuleLast;
}
else {
jnRuleLast = (interval * [self->rrule repeatCount] * 7)
+ jnFirst;
if (jnRuleLast < jnStart)
return nil;
}
/* jnStart < jnRuleLast < jnEnd ? */
if (jnEnd > jnRuleLast)
jnEnd = jnRuleLast;
}
startEndCount = (jnEnd - jnStart) + 1;
ranges = [NSMutableArray arrayWithCapacity:startEndCount];
byDayMask = [self->rrule byDayMask];
if (!byDayMask) {
for (i = 0 ; i < startEndCount; i++) {
long jnCurrent;
jnCurrent = jnStart + i;
if (jnCurrent >= jnFirst) {
long jnDiff;
jnDiff = jnCurrent - jnFirst; /* difference in days */
if ((jnDiff % (interval * 7)) == 0) {
NSCalendarDate *start, *end;
NGCalendarDateRange *r;
start = [NSCalendarDate dateForJulianNumber:jnCurrent];
[start setTimeZone:[firStart timeZone]];
start = [start hour: [firStart hourOfDay]
minute:[firStart minuteOfHour]
second:[firStart secondOfMinute]];
end = [start addTimeInterval:[self->firstRange duration]];
r = [NGCalendarDateRange calendarDateRangeWithStartDate:start
endDate:end];
if ([_r containsDateRange:r])
[ranges addObject:r];
}
}
ranges = [NSMutableArray arrayWithCapacity: startEndCount];
byDayMask = [rrule byDayMask];
if (!byDayMask)
{
for (i = 0 ; i < startEndCount; i++)
{
long jnCurrent;
jnCurrent = jnStart + i;
if (jnCurrent >= jnFirst)
{
long jnDiff;
jnDiff = jnCurrent - jnFirst; /* difference in days */
if ((jnDiff % (interval * 7)) == 0)
{
NSCalendarDate *start, *end;
NGCalendarDateRange *r;
start = [NSCalendarDate dateForJulianNumber: jnCurrent];
[start setTimeZone: [firStart timeZone]];
start = [start hour: [firStart hourOfDay]
minute: [firStart minuteOfHour]
second: [firStart secondOfMinute]];
end = [start addTimeInterval: [firstRange duration]];
r = [NGCalendarDateRange calendarDateRangeWithStartDate: start
endDate: end];
if ([_r containsDateRange: r])
[ranges addObject: r];
}
}
}
}
}
else {
long jnFirstWeekStart, weekStartOffset;
else
{
long jnFirstWeekStart, weekStartOffset;
/* calculate jnFirst's week start - this depends on our setting of week
start */
weekStartOffset = [self offsetFromSundayForJulianNumber:jnFirst] -
[self offsetFromSundayForCurrentWeekStart];
/* calculate jnFirst's week start - this depends on our setting of week
start */
weekStartOffset = [self offsetFromSundayForJulianNumber: jnFirst] -
[self offsetFromSundayForCurrentWeekStart];
jnFirstWeekStart = jnFirst - weekStartOffset;
jnFirstWeekStart = jnFirst - weekStartOffset;
for (i = 0 ; i < startEndCount; i++) {
long jnCurrent;
for (i = 0 ; i < startEndCount; i++)
{
long jnCurrent;
jnCurrent = jnStart + i;
if (jnCurrent >= jnFirst) {
long jnDiff;
/* we need to calculate a difference in weeks */
jnDiff = (jnCurrent - jnFirstWeekStart) % 7;
if ((jnDiff % interval) == 0) {
BOOL isRecurrence = NO;
if (jnCurrent == jnFirst) {
isRecurrence = YES;
}
else {
iCalWeekDay weekDay;
jnCurrent = jnStart + i;
if (jnCurrent >= jnFirst)
{
long jnDiff;
/* we need to calculate a difference in weeks */
jnDiff = (jnCurrent - jnFirstWeekStart) % 7;
if ((jnDiff % interval) == 0)
{
BOOL isRecurrence = NO;
if (jnCurrent == jnFirst)
{
isRecurrence = YES;
}
else
{
iCalWeekDay weekDay;
weekDay = [self weekDayForJulianNumber:jnCurrent];
isRecurrence = (weekDay & [self->rrule byDayMask]) ? YES : NO;
}
if (isRecurrence) {
NSCalendarDate *start, *end;
NGCalendarDateRange *r;
start = [NSCalendarDate dateForJulianNumber:jnCurrent];
[start setTimeZone:[firStart timeZone]];
start = [start hour: [firStart hourOfDay]
minute:[firStart minuteOfHour]
second:[firStart secondOfMinute]];
end = [start addTimeInterval:[self->firstRange duration]];
r = [NGCalendarDateRange calendarDateRangeWithStartDate:start
endDate:end];
if ([_r containsDateRange:r])
[ranges addObject:r];
}
}
}
weekDay = [self weekDayForJulianNumber: jnCurrent];
isRecurrence = (weekDay & [rrule byDayMask]) ? YES : NO;
}
if (isRecurrence)
{
NSCalendarDate *start, *end;
NGCalendarDateRange *r;
start = [NSCalendarDate dateForJulianNumber: jnCurrent];
[start setTimeZone: [firStart timeZone]];
start = [start hour: [firStart hourOfDay]
minute: [firStart minuteOfHour]
second: [firStart secondOfMinute]];
end = [start addTimeInterval: [firstRange duration]];
r = [NGCalendarDateRange calendarDateRangeWithStartDate: start
endDate: end];
if ([_r containsDateRange: r])
[ranges addObject: r];
}
}
}
}
}
}
return ranges;
}
- (NSCalendarDate *)lastInstanceStartDate {
if ([self->rrule repeatCount] > 0) {
long jnFirst, jnRuleLast;
NSCalendarDate *firStart, *until;
firStart = [self->firstRange startDate];
jnFirst = [firStart julianNumber];
jnRuleLast = ([self->rrule repeatInterval] *
[self->rrule repeatCount] * 7) +
jnFirst;
until = [NSCalendarDate dateForJulianNumber:jnRuleLast];
until = [until hour: [firStart hourOfDay]
minute:[firStart minuteOfHour]
second:[firStart secondOfMinute]];
return until;
}
- (NSCalendarDate *) lastInstanceStartDate
{
if ([rrule repeatCount] > 0)
{
long jnFirst, jnRuleLast;
NSCalendarDate *firStart, *until;
firStart = [firstRange startDate];
jnFirst = [firStart julianNumber];
jnRuleLast = ([rrule repeatInterval] *
[rrule repeatCount] * 7) +
jnFirst;
until = [NSCalendarDate dateForJulianNumber: jnRuleLast];
until = [until hour: [firStart hourOfDay]
minute: [firStart minuteOfHour]
second: [firStart secondOfMinute]];
return until;
}
return [super lastInstanceStartDate];
}

View File

@ -1,20 +1,20 @@
/*
Copyright (C) 2004-2005 SKYRIX Software AG
This file is part of SOPE.
SOPE is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
SOPE is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public
License along with SOPE; see the file COPYING. If not, write to the
License along with SOPE; see the file COPYING. If not, write to the
Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
*/
@ -30,71 +30,78 @@
#import "iCalRecurrenceRule.h"
#import "NSCalendarDate+ICal.h"
@interface iCalRecurrenceCalculator(PrivateAPI)
- (NSCalendarDate *)lastInstanceStartDate;
@interface iCalRecurrenceCalculator (PrivateAPI)
- (NSCalendarDate *) lastInstanceStartDate;
@end
@implementation iCalYearlyRecurrenceCalculator
- (NSArray *)recurrenceRangesWithinCalendarDateRange:(NGCalendarDateRange *)_r{
- (NSArray *)
recurrenceRangesWithinCalendarDateRange: (NGCalendarDateRange *) _r
{
NSMutableArray *ranges;
NSCalendarDate *firStart, *rStart, *rEnd, *until;
unsigned i, count, interval;
int diff;
firStart = [self->firstRange startDate];
rStart = [_r startDate];
rEnd = [_r endDate];
interval = [self->rrule repeatInterval];
until = [self lastInstanceStartDate];
if (until) {
if ([until compare:rStart] == NSOrderedAscending)
return nil;
if ([until compare:rEnd] == NSOrderedDescending)
rEnd = until;
}
diff = [firStart yearsBetweenDate:rStart];
if ((diff != 0) && [rStart compare:firStart] == NSOrderedAscending)
unsigned i, count, interval;
int diff;
firStart = [firstRange startDate];
rStart = [_r startDate];
rEnd = [_r endDate];
interval = [rrule repeatInterval];
until = [self lastInstanceStartDate];
if (until)
{
if ([until compare: rStart] == NSOrderedAscending)
return nil;
if ([until compare: rEnd] == NSOrderedDescending)
rEnd = until;
}
diff = [firStart yearsBetweenDate: rStart];
if ((diff != 0) && [rStart compare: firStart] == NSOrderedAscending)
diff = -diff;
count = [rStart yearsBetweenDate:rEnd] + 1;
ranges = [NSMutableArray arrayWithCapacity:count];
for (i = 0 ; i < count; i++) {
int test;
count = [rStart yearsBetweenDate: rEnd] + 1;
ranges = [NSMutableArray arrayWithCapacity: count];
for (i = 0 ; i < count; i++)
{
int test;
test = diff + i;
if ((test >= 0) && (test % interval) == 0) {
NSCalendarDate *start, *end;
NGCalendarDateRange *r;
start = [firStart dateByAddingYears:diff + i
months:0
days:0];
[start setTimeZone:[firStart timeZone]];
end = [start addTimeInterval:[self->firstRange duration]];
r = [NGCalendarDateRange calendarDateRangeWithStartDate:start
endDate:end];
if ([_r containsDateRange:r])
[ranges addObject:r];
test = diff + i;
if ((test >= 0) && (test % interval) == 0)
{
NSCalendarDate *start, *end;
NGCalendarDateRange *r;
start = [firStart dateByAddingYears: diff + i
months: 0
days: 0];
[start setTimeZone: [firStart timeZone]];
end = [start addTimeInterval: [firstRange duration]];
r = [NGCalendarDateRange calendarDateRangeWithStartDate: start
endDate: end];
if ([_r containsDateRange: r])
[ranges addObject: r];
}
}
}
return ranges;
}
- (NSCalendarDate *)lastInstanceStartDate {
if ([self->rrule repeatCount] > 0) {
NSCalendarDate *until;
unsigned years, interval;
interval = [self->rrule repeatInterval];
years = [self->rrule repeatCount] * interval;
until = [[self->firstRange startDate] dateByAddingYears:years
months:0
days:0];
return until;
}
- (NSCalendarDate *) lastInstanceStartDate
{
if ([rrule repeatCount] > 0)
{
NSCalendarDate *until;
unsigned years, interval;
interval = [rrule repeatInterval];
years = [rrule repeatCount] * interval;
until = [[firstRange startDate] dateByAddingYears: years
months: 0
days: 0];
return until;
}
return [super lastInstanceStartDate];
}