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diff --git a/src/parser/calendar/data/PhutilCalendarRecurrenceRule.php b/src/parser/calendar/data/PhutilCalendarRecurrenceRule.php
--- a/src/parser/calendar/data/PhutilCalendarRecurrenceRule.php
+++ b/src/parser/calendar/data/PhutilCalendarRecurrenceRule.php
@@ -44,6 +44,9 @@
private $initialYear;
private $baseYear;
private $isAllDay;
+ private $activeSet = array();
+ private $nextSet = array();
+ private $minimumEpoch;
const FREQUENCY_SECONDLY = 'SECONDLY';
const FREQUENCY_MINUTELY = 'MINUTELY';
@@ -336,6 +339,37 @@
$this->stateMonth = null;
$this->stateYear = null;
+ // If we have a BYSETPOS, we need to generate the entire set before we
+ // can filter it and return results. Normally, we start generating at
+ // the start date, but we need to go back one interval to generate
+ // BYSETPOS events so we can make sure the entire set is generated.
+ if ($this->getBySetPosition()) {
+ $frequency = $this->getFrequency();
+ $interval = $this->getInterval();
+ switch ($frequency) {
+ case self::FREQUENCY_YEARLY:
+ $this->cursorYear -= $interval;
+ break;
+ case self::FREQUENCY_MONTHLY:
+ $this->cursorMonth -= $interval;
+ while ($this->cursorMonth < 1) {
+ $this->cursorYear--;
+ $this->cursorMonth += 12;
+ }
+ break;
+ default:
+ throw new Exception(
+ pht(
+ 'BYSETPOS not yet supported for FREQ "%s".',
+ $frequency));
+ }
+
+ $this->minimumEpoch = $this->getStartDateTime()->getEpoch();
+ } else {
+ $this->minimumEpoch = null;
+ }
+
+
$this->initialMonth = $this->cursorMonth;
$this->initialYear = $this->cursorYear;
@@ -355,30 +389,92 @@
}
public function getNextEvent($cursor) {
+ while (true) {
+ $event = $this->generateNextEvent();
+ if (!$event) {
+ break;
+ }
+
+ $epoch = $event->getEpoch();
+ if ($this->minimumEpoch) {
+ if ($epoch < $this->minimumEpoch) {
+ continue;
+ }
+ }
+
+ if ($epoch < $cursor) {
+ continue;
+ }
+
+ break;
+ }
+
+ return $event;
+ }
+
+ private function generateNextEvent() {
+ if ($this->activeSet) {
+ return array_pop($this->activeSet);
+ }
+
$this->baseYear = $this->cursorYear;
- if ($this->isAllDay) {
- $this->nextDay();
- } else {
- $this->nextSecond();
+ $by_setpos = $this->getBySetPosition();
+ if ($by_setpos) {
+ $old_state = $this->getSetPositionState();
}
- $result = id(new PhutilCalendarAbsoluteDateTime())
- ->setViewerTimezone($this->getViewerTimezone())
- ->setYear($this->stateYear)
- ->setMonth($this->stateMonth)
- ->setDay($this->stateDay);
+ while (!$this->activeSet) {
+ $this->activeSet = $this->nextSet;
+ $this->nextSet = array();
- if ($this->isAllDay) {
- $result->setIsAllDay(true);
- } else {
- $result
- ->setHour($this->stateHour)
- ->setMinute($this->stateMinute)
- ->setSecond($this->stateSecond);
+ while (true) {
+ if ($this->isAllDay) {
+ $this->nextDay();
+ } else {
+ $this->nextSecond();
+ }
+
+ $result = id(new PhutilCalendarAbsoluteDateTime())
+ ->setViewerTimezone($this->getViewerTimezone())
+ ->setYear($this->stateYear)
+ ->setMonth($this->stateMonth)
+ ->setDay($this->stateDay);
+
+ if ($this->isAllDay) {
+ $result->setIsAllDay(true);
+ } else {
+ $result
+ ->setHour($this->stateHour)
+ ->setMinute($this->stateMinute)
+ ->setSecond($this->stateSecond);
+ }
+
+ // If we don't have BYSETPOS, we're all done. We put this into the
+ // set and will immediately return it.
+ if (!$by_setpos) {
+ $this->activeSet[] = $result;
+ break;
+ }
+
+ // Otherwise, check if we've completed a set. The set is complete if
+ // the state has moved past the span we were examining (for example,
+ // with a YEARLY event, if the state is now in the next year).
+ $new_state = $this->getSetPositionState();
+ if ($new_state == $old_state) {
+ $this->activeSet[] = $result;
+ continue;
+ }
+
+ $this->activeSet = $this->applySetPos($this->activeSet, $by_setpos);
+ $this->activeSet = array_reverse($this->activeSet);
+ $this->nextSet[] = $result;
+ $old_state = $new_state;
+ break;
+ }
}
- return $result;
+ return array_pop($this->activeSet);
}
@@ -392,7 +488,6 @@
$interval = $this->getInterval();
$is_secondly = ($frequency == self::FREQUENCY_SECONDLY);
$by_second = $this->getBySecond();
- $by_setpos = $this->getBySetPosition();
while (!$this->setSeconds) {
$this->nextMinute();
@@ -407,10 +502,6 @@
);
}
- if ($is_secondly && $by_setpos) {
- $seconds = $this->applySetPos($seconds, $by_setpos);
- }
-
$this->setSeconds = array_reverse($seconds);
}
@@ -428,7 +519,6 @@
$scale = $this->getFrequencyScale();
$is_minutely = ($frequency === self::FREQUENCY_MINUTELY);
$by_minute = $this->getByMinute();
- $by_setpos = $this->getBySetPosition();
while (!$this->setMinutes) {
$this->nextHour();
@@ -447,10 +537,6 @@
);
}
- if ($is_minutely && $by_setpos) {
- $minutes = $this->applySetPos($minutes, $by_setpos);
- }
-
$this->setMinutes = array_reverse($minutes);
}
@@ -468,7 +554,6 @@
$scale = $this->getFrequencyScale();
$is_hourly = ($frequency === self::FREQUENCY_HOURLY);
$by_hour = $this->getByHour();
- $by_setpos = $this->getBySetPosition();
while (!$this->setHours) {
$this->nextDay();
@@ -487,10 +572,6 @@
);
}
- if ($is_hourly && $by_setpos) {
- $hours = $this->applySetPos($hours, $by_setpos);
- }
-
$this->setHours = array_reverse($hours);
}
@@ -513,7 +594,6 @@
$by_monthday = $this->getByMonthDay();
$by_yearday = $this->getByYearDay();
$by_weekno = $this->getByWeekNumber();
- $by_setpos = $this->getBySetPosition();
$week_start = $this->getWeekStart();
while (!$this->setDays) {
@@ -553,19 +633,9 @@
}
}
- // Apply weekly BYSETPOS, if one exists.
- if ($is_weekly && $by_setpos) {
- $weeks = $this->applySetPos($weeks, $by_setpos);
- }
-
// Unpack the weeks into days.
$days = array_mergev($weeks);
- // Apply daily BYSETPOS, if one exists.
- if ($is_daily && $by_setpos) {
- $days = $this->applySetPos($days, $by_setpos);
- }
-
$this->setDays = array_reverse($days);
}
@@ -584,7 +654,6 @@
$is_monthly = ($frequency === self::FREQUENCY_MONTHLY);
$by_month = $this->getByMonth();
- $by_setpos = $this->getBySetPosition();
// If we have a BYMONTHDAY, we consider that set of days in every month.
// For example, "FREQ=YEARLY;BYMONTHDAY=3" means "the third day of every
@@ -618,10 +687,6 @@
);
}
- if ($is_monthly && $by_setpos) {
- $months = $this->applySetPos($months, $by_setpos);
- }
-
$this->setMonths = array_reverse($months);
}
@@ -1097,6 +1162,8 @@
}
sort($select);
+ $select = array_unique($select);
+
return array_select_keys($values, $select);
}
@@ -1139,4 +1206,16 @@
}
}
+ private function getSetPositionState() {
+ $scale = $this->getFrequencyScale();
+
+ $parts = array();
+ $parts[] = $this->stateYear;
+ if ($scale < self::SCALE_YEARLY) {
+ $parts[] = $this->stateMonth;
+ }
+
+ return implode('/', $parts);
+ }
+
}
diff --git a/src/parser/calendar/data/__tests__/PhutilCalendarRecurrenceRuleTestCase.php b/src/parser/calendar/data/__tests__/PhutilCalendarRecurrenceRuleTestCase.php
--- a/src/parser/calendar/data/__tests__/PhutilCalendarRecurrenceRuleTestCase.php
+++ b/src/parser/calendar/data/__tests__/PhutilCalendarRecurrenceRuleTestCase.php
@@ -419,19 +419,16 @@
'19970902T063010Z',
);
- // TODO: This does not pass yet because BYSETPOS is not implemented
- // properly for YEARLY rules.
-
- // $tests[] = array(
- // 'BYMONTHDAY' => array(15),
- // 'BYHOUR' => array(6, 18),
- // 'BYSETPOS' => array(3, -3),
- // );
- // $expect[] = array(
- // '19971115T180000Z',
- // '19980215T060000Z',
- // '19981115T180000Z',
- // );
+ $tests[] = array(
+ 'BYMONTHDAY' => array(15),
+ 'BYHOUR' => array(6, 18),
+ 'BYSETPOS' => array(3, -3),
+ );
+ $expect[] = array(
+ '19971115T180000Z',
+ '19980215T060000Z',
+ '19981115T180000Z',
+ );
$this->assertRules(
array(
@@ -587,18 +584,15 @@
'20010301',
);
- // TODO: This test does not pass yet because BYSETPOS is not implemented
- // correctly.
-
- // $tests[] = array(
- // 'BYDAY' => array('MO', 'TU', 'WE', 'TH', 'FR'),
- // 'BYSETPOS' => array(-1),
- // );
- // $expect[] = array(
- // '19970930',
- // '19971031',
- // '19971128',
- // );
+ $tests[] = array(
+ 'BYDAY' => array('MO', 'TU', 'WE', 'TH', 'FR'),
+ 'BYSETPOS' => array(-1),
+ );
+ $expect[] = array(
+ '19970930',
+ '19971031',
+ '19971128',
+ );
$tests[] = array(
'BYDAY' => array('1MO', '1TU', '1WE', '1TH', '1FR', '-1FR'),
@@ -647,40 +641,38 @@
'19971002T000006Z',
);
- // TODO: These tests rely on BYSETPOS and do not work yet.
-
- // $tests[] = array(
- // 'BYMONTHDAY' => array(13, 17),
- // 'BYHOUR' => array(6, 18),
- // 'BYSETPOS' => array(3, -3),
- // );
- // $expect[] = array(
- // '19970913T180000Z',
- // '19970917T060000Z',
- // '19971013T180000Z',
- // );
-
- // $tests[] = array(
- // 'BYMONTHDAY' => array(13, 17),
- // 'BYHOUR' => array(6, 18),
- // 'BYSETPOS' => array(3, 3, -3),
- // );
- // $expect[] = array(
- // '19970913T180000Z',
- // '19970917T060000Z',
- // '19971013T180000Z',
- // );
-
- // $tests[] = array(
- // 'BYMONTHDAY' => array(13, 17),
- // 'BYHOUR' => array(6, 18),
- // 'BYSETPOS' => array(4, -1),
- // );
- // $expect[] = array(
- // '19970917T180000Z',
- // '19971017T180000Z',
- // '19971117T180000Z',
- // );
+ $tests[] = array(
+ 'BYMONTHDAY' => array(13, 17),
+ 'BYHOUR' => array(6, 18),
+ 'BYSETPOS' => array(3, -3),
+ );
+ $expect[] = array(
+ '19970913T180000Z',
+ '19970917T060000Z',
+ '19971013T180000Z',
+ );
+
+ $tests[] = array(
+ 'BYMONTHDAY' => array(13, 17),
+ 'BYHOUR' => array(6, 18),
+ 'BYSETPOS' => array(3, 3, -3),
+ );
+ $expect[] = array(
+ '19970913T180000Z',
+ '19970917T060000Z',
+ '19971013T180000Z',
+ );
+
+ $tests[] = array(
+ 'BYMONTHDAY' => array(13, 17),
+ 'BYHOUR' => array(6, 18),
+ 'BYSETPOS' => array(4, -1),
+ );
+ $expect[] = array(
+ '19970917T180000Z',
+ '19971017T180000Z',
+ '19971117T180000Z',
+ );
$this->assertRules(
array(

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