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https://codeberg.org/streams/streams.git
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1013 lines
30 KiB
PHP
1013 lines
30 KiB
PHP
<?php
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namespace Sabre\VObject\Recur;
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use DateTimeImmutable;
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use DateTimeInterface;
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use Iterator;
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use Sabre\VObject\DateTimeParser;
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use Sabre\VObject\InvalidDataException;
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use Sabre\VObject\Property;
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/**
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* RRuleParser.
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*
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* This class receives an RRULE string, and allows you to iterate to get a list
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* of dates in that recurrence.
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*
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* For instance, passing: FREQ=DAILY;LIMIT=5 will cause the iterator to contain
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* 5 items, one for each day.
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*
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* @copyright Copyright (C) fruux GmbH (https://fruux.com/)
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* @author Evert Pot (http://evertpot.com/)
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* @license http://sabre.io/license/ Modified BSD License
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*/
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class RRuleIterator implements Iterator {
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/**
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* Creates the Iterator.
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*
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* @param string|array $rrule
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* @param DateTimeInterface $start
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*/
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function __construct($rrule, DateTimeInterface $start) {
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$this->startDate = $start;
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$this->parseRRule($rrule);
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$this->currentDate = clone $this->startDate;
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}
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/* Implementation of the Iterator interface {{{ */
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function current() {
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if (!$this->valid()) return;
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return clone $this->currentDate;
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}
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/**
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* Returns the current item number.
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*
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* @return int
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*/
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function key() {
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return $this->counter;
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}
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/**
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* Returns whether the current item is a valid item for the recurrence
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* iterator. This will return false if we've gone beyond the UNTIL or COUNT
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* statements.
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*
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* @return bool
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*/
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function valid() {
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if (!is_null($this->count)) {
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return $this->counter < $this->count;
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}
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return is_null($this->until) || $this->currentDate <= $this->until;
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}
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/**
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* Resets the iterator.
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*
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* @return void
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*/
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function rewind() {
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$this->currentDate = clone $this->startDate;
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$this->counter = 0;
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}
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/**
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* Goes on to the next iteration.
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*
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* @return void
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*/
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function next() {
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// Otherwise, we find the next event in the normal RRULE
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// sequence.
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switch ($this->frequency) {
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case 'hourly' :
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$this->nextHourly();
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break;
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case 'daily' :
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$this->nextDaily();
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break;
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case 'weekly' :
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$this->nextWeekly();
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break;
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case 'monthly' :
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$this->nextMonthly();
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break;
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case 'yearly' :
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$this->nextYearly();
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break;
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}
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$this->counter++;
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}
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/* End of Iterator implementation }}} */
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/**
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* Returns true if this recurring event never ends.
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*
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* @return bool
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*/
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function isInfinite() {
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return !$this->count && !$this->until;
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}
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/**
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* This method allows you to quickly go to the next occurrence after the
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* specified date.
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*
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* @param DateTimeInterface $dt
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*
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* @return void
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*/
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function fastForward(DateTimeInterface $dt) {
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while ($this->valid() && $this->currentDate < $dt) {
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$this->next();
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}
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}
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/**
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* The reference start date/time for the rrule.
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*
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* All calculations are based on this initial date.
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*
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* @var DateTimeInterface
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*/
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protected $startDate;
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/**
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* The date of the current iteration. You can get this by calling
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* ->current().
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*
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* @var DateTimeInterface
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*/
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protected $currentDate;
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/**
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* Frequency is one of: secondly, minutely, hourly, daily, weekly, monthly,
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* yearly.
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*
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* @var string
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*/
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protected $frequency;
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/**
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* The number of recurrences, or 'null' if infinitely recurring.
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*
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* @var int
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*/
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protected $count;
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/**
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* The interval.
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*
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* If for example frequency is set to daily, interval = 2 would mean every
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* 2 days.
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*
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* @var int
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*/
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protected $interval = 1;
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/**
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* The last instance of this recurrence, inclusively.
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*
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* @var DateTimeInterface|null
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*/
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protected $until;
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/**
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* Which seconds to recur.
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*
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* This is an array of integers (between 0 and 60)
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*
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* @var array
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*/
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protected $bySecond;
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/**
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* Which minutes to recur.
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*
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* This is an array of integers (between 0 and 59)
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*
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* @var array
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*/
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protected $byMinute;
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/**
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* Which hours to recur.
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*
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* This is an array of integers (between 0 and 23)
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*
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* @var array
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*/
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protected $byHour;
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/**
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* The current item in the list.
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*
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* You can get this number with the key() method.
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*
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* @var int
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*/
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protected $counter = 0;
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/**
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* Which weekdays to recur.
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*
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* This is an array of weekdays
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*
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* This may also be preceeded by a positive or negative integer. If present,
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* this indicates the nth occurrence of a specific day within the monthly or
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* yearly rrule. For instance, -2TU indicates the second-last tuesday of
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* the month, or year.
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*
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* @var array
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*/
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protected $byDay;
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/**
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* Which days of the month to recur.
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*
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* This is an array of days of the months (1-31). The value can also be
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* negative. -5 for instance means the 5th last day of the month.
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*
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* @var array
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*/
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protected $byMonthDay;
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/**
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* Which days of the year to recur.
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*
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* This is an array with days of the year (1 to 366). The values can also
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* be negative. For instance, -1 will always represent the last day of the
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* year. (December 31st).
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*
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* @var array
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*/
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protected $byYearDay;
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/**
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* Which week numbers to recur.
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*
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* This is an array of integers from 1 to 53. The values can also be
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* negative. -1 will always refer to the last week of the year.
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*
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* @var array
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*/
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protected $byWeekNo;
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/**
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* Which months to recur.
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*
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* This is an array of integers from 1 to 12.
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*
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* @var array
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*/
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protected $byMonth;
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/**
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* Which items in an existing st to recur.
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*
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* These numbers work together with an existing by* rule. It specifies
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* exactly which items of the existing by-rule to filter.
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*
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* Valid values are 1 to 366 and -1 to -366. As an example, this can be
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* used to recur the last workday of the month.
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*
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* This would be done by setting frequency to 'monthly', byDay to
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* 'MO,TU,WE,TH,FR' and bySetPos to -1.
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*
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* @var array
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*/
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protected $bySetPos;
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/**
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* When the week starts.
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*
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* @var string
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*/
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protected $weekStart = 'MO';
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/* Functions that advance the iterator {{{ */
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/**
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* Does the processing for advancing the iterator for hourly frequency.
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*
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* @return void
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*/
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protected function nextHourly() {
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$this->currentDate = $this->currentDate->modify('+' . $this->interval . ' hours');
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}
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/**
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* Does the processing for advancing the iterator for daily frequency.
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*
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* @return void
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*/
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protected function nextDaily() {
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if (!$this->byHour && !$this->byDay) {
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$this->currentDate = $this->currentDate->modify('+' . $this->interval . ' days');
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return;
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}
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if (!empty($this->byHour)) {
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$recurrenceHours = $this->getHours();
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}
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if (!empty($this->byDay)) {
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$recurrenceDays = $this->getDays();
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}
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if (!empty($this->byMonth)) {
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$recurrenceMonths = $this->getMonths();
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}
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do {
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if ($this->byHour) {
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if ($this->currentDate->format('G') == '23') {
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// to obey the interval rule
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$this->currentDate = $this->currentDate->modify('+' . $this->interval - 1 . ' days');
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}
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$this->currentDate = $this->currentDate->modify('+1 hours');
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} else {
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$this->currentDate = $this->currentDate->modify('+' . $this->interval . ' days');
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}
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// Current month of the year
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$currentMonth = $this->currentDate->format('n');
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// Current day of the week
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$currentDay = $this->currentDate->format('w');
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// Current hour of the day
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$currentHour = $this->currentDate->format('G');
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} while (
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($this->byDay && !in_array($currentDay, $recurrenceDays)) ||
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($this->byHour && !in_array($currentHour, $recurrenceHours)) ||
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($this->byMonth && !in_array($currentMonth, $recurrenceMonths))
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);
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}
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/**
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* Does the processing for advancing the iterator for weekly frequency.
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*
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* @return void
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*/
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protected function nextWeekly() {
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if (!$this->byHour && !$this->byDay) {
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$this->currentDate = $this->currentDate->modify('+' . $this->interval . ' weeks');
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return;
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}
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if ($this->byHour) {
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$recurrenceHours = $this->getHours();
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}
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if ($this->byDay) {
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$recurrenceDays = $this->getDays();
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}
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// First day of the week:
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$firstDay = $this->dayMap[$this->weekStart];
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do {
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if ($this->byHour) {
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$this->currentDate = $this->currentDate->modify('+1 hours');
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} else {
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$this->currentDate = $this->currentDate->modify('+1 days');
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}
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// Current day of the week
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$currentDay = (int)$this->currentDate->format('w');
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// Current hour of the day
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$currentHour = (int)$this->currentDate->format('G');
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// We need to roll over to the next week
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if ($currentDay === $firstDay && (!$this->byHour || $currentHour == '0')) {
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$this->currentDate = $this->currentDate->modify('+' . $this->interval - 1 . ' weeks');
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// We need to go to the first day of this week, but only if we
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// are not already on this first day of this week.
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if ($this->currentDate->format('w') != $firstDay) {
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$this->currentDate = $this->currentDate->modify('last ' . $this->dayNames[$this->dayMap[$this->weekStart]]);
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}
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}
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// We have a match
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} while (($this->byDay && !in_array($currentDay, $recurrenceDays)) || ($this->byHour && !in_array($currentHour, $recurrenceHours)));
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}
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/**
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* Does the processing for advancing the iterator for monthly frequency.
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*
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* @return void
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*/
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protected function nextMonthly() {
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$currentDayOfMonth = $this->currentDate->format('j');
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if (!$this->byMonthDay && !$this->byDay) {
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// If the current day is higher than the 28th, rollover can
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// occur to the next month. We Must skip these invalid
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// entries.
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if ($currentDayOfMonth < 29) {
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$this->currentDate = $this->currentDate->modify('+' . $this->interval . ' months');
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} else {
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$increase = 0;
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do {
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$increase++;
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$tempDate = clone $this->currentDate;
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$tempDate = $tempDate->modify('+ ' . ($this->interval * $increase) . ' months');
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} while ($tempDate->format('j') != $currentDayOfMonth);
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$this->currentDate = $tempDate;
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}
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return;
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}
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while (true) {
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$occurrences = $this->getMonthlyOccurrences();
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foreach ($occurrences as $occurrence) {
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// The first occurrence thats higher than the current
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// day of the month wins.
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if ($occurrence > $currentDayOfMonth) {
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break 2;
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}
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}
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// If we made it all the way here, it means there were no
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// valid occurrences, and we need to advance to the next
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// month.
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//
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// This line does not currently work in hhvm. Temporary workaround
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// follows:
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// $this->currentDate->modify('first day of this month');
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$this->currentDate = new DateTimeImmutable($this->currentDate->format('Y-m-1 H:i:s'), $this->currentDate->getTimezone());
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// end of workaround
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$this->currentDate = $this->currentDate->modify('+ ' . $this->interval . ' months');
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// This goes to 0 because we need to start counting at the
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// beginning.
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$currentDayOfMonth = 0;
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}
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$this->currentDate = $this->currentDate->setDate(
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(int)$this->currentDate->format('Y'),
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(int)$this->currentDate->format('n'),
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(int)$occurrence
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);
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}
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/**
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* Does the processing for advancing the iterator for yearly frequency.
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*
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* @return void
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*/
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protected function nextYearly() {
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$currentMonth = $this->currentDate->format('n');
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$currentYear = $this->currentDate->format('Y');
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$currentDayOfMonth = $this->currentDate->format('j');
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// No sub-rules, so we just advance by year
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if (empty($this->byMonth)) {
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// Unless it was a leap day!
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if ($currentMonth == 2 && $currentDayOfMonth == 29) {
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$counter = 0;
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do {
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$counter++;
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// Here we increase the year count by the interval, until
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// we hit a date that's also in a leap year.
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//
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// We could just find the next interval that's dividable by
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// 4, but that would ignore the rule that there's no leap
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// year every year that's dividable by a 100, but not by
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// 400. (1800, 1900, 2100). So we just rely on the datetime
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// functions instead.
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$nextDate = clone $this->currentDate;
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$nextDate = $nextDate->modify('+ ' . ($this->interval * $counter) . ' years');
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} while ($nextDate->format('n') != 2);
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$this->currentDate = $nextDate;
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return;
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}
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if ($this->byWeekNo !== null) { // byWeekNo is an array with values from -53 to -1, or 1 to 53
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$dayOffsets = [];
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if ($this->byDay) {
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foreach ($this->byDay as $byDay) {
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$dayOffsets[] = $this->dayMap[$byDay];
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}
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} else { // default is Monday
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$dayOffsets[] = 1;
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}
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$currentYear = $this->currentDate->format('Y');
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while (true) {
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$checkDates = [];
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// loop through all WeekNo and Days to check all the combinations
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foreach ($this->byWeekNo as $byWeekNo) {
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foreach ($dayOffsets as $dayOffset) {
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$date = clone $this->currentDate;
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$date->setISODate($currentYear, $byWeekNo, $dayOffset);
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if ($date > $this->currentDate) {
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$checkDates[] = $date;
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}
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}
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}
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if (count($checkDates) > 0) {
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$this->currentDate = min($checkDates);
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return;
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}
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// if there is no date found, check the next year
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$currentYear += $this->interval;
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}
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}
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if ($this->byYearDay !== null) { // byYearDay is an array with values from -366 to -1, or 1 to 366
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$dayOffsets = [];
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if ($this->byDay) {
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foreach ($this->byDay as $byDay) {
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$dayOffsets[] = $this->dayMap[$byDay];
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}
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} else { // default is Monday-Sunday
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$dayOffsets = [1,2,3,4,5,6,7];
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}
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$currentYear = $this->currentDate->format('Y');
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while (true) {
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$checkDates = [];
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// loop through all YearDay and Days to check all the combinations
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foreach ($this->byYearDay as $byYearDay) {
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$date = clone $this->currentDate;
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$date->setDate($currentYear, 1, 1);
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if ($byYearDay > 0) {
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$date->add(new \DateInterval('P' . $byYearDay . 'D'));
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} else {
|
|
$date->sub(new \DateInterval('P' . abs($byYearDay) . 'D'));
|
|
}
|
|
|
|
if ($date > $this->currentDate && in_array($date->format('N'), $dayOffsets)) {
|
|
$checkDates[] = $date;
|
|
}
|
|
}
|
|
|
|
if (count($checkDates) > 0) {
|
|
$this->currentDate = min($checkDates);
|
|
return;
|
|
}
|
|
|
|
// if there is no date found, check the next year
|
|
$currentYear += $this->interval;
|
|
}
|
|
}
|
|
|
|
// The easiest form
|
|
$this->currentDate = $this->currentDate->modify('+' . $this->interval . ' years');
|
|
return;
|
|
|
|
}
|
|
|
|
$currentMonth = $this->currentDate->format('n');
|
|
$currentYear = $this->currentDate->format('Y');
|
|
$currentDayOfMonth = $this->currentDate->format('j');
|
|
|
|
$advancedToNewMonth = false;
|
|
|
|
// If we got a byDay or getMonthDay filter, we must first expand
|
|
// further.
|
|
if ($this->byDay || $this->byMonthDay) {
|
|
|
|
while (true) {
|
|
|
|
$occurrences = $this->getMonthlyOccurrences();
|
|
|
|
foreach ($occurrences as $occurrence) {
|
|
|
|
// The first occurrence that's higher than the current
|
|
// day of the month wins.
|
|
// If we advanced to the next month or year, the first
|
|
// occurrence is always correct.
|
|
if ($occurrence > $currentDayOfMonth || $advancedToNewMonth) {
|
|
break 2;
|
|
}
|
|
|
|
}
|
|
|
|
// If we made it here, it means we need to advance to
|
|
// the next month or year.
|
|
$currentDayOfMonth = 1;
|
|
$advancedToNewMonth = true;
|
|
do {
|
|
|
|
$currentMonth++;
|
|
if ($currentMonth > 12) {
|
|
$currentYear += $this->interval;
|
|
$currentMonth = 1;
|
|
}
|
|
} while (!in_array($currentMonth, $this->byMonth));
|
|
|
|
$this->currentDate = $this->currentDate->setDate(
|
|
(int)$currentYear,
|
|
(int)$currentMonth,
|
|
(int)$currentDayOfMonth
|
|
);
|
|
|
|
}
|
|
|
|
// If we made it here, it means we got a valid occurrence
|
|
$this->currentDate = $this->currentDate->setDate(
|
|
(int)$currentYear,
|
|
(int)$currentMonth,
|
|
(int)$occurrence
|
|
);
|
|
return;
|
|
|
|
} else {
|
|
|
|
// These are the 'byMonth' rules, if there are no byDay or
|
|
// byMonthDay sub-rules.
|
|
do {
|
|
|
|
$currentMonth++;
|
|
if ($currentMonth > 12) {
|
|
$currentYear += $this->interval;
|
|
$currentMonth = 1;
|
|
}
|
|
} while (!in_array($currentMonth, $this->byMonth));
|
|
$this->currentDate = $this->currentDate->setDate(
|
|
(int)$currentYear,
|
|
(int)$currentMonth,
|
|
(int)$currentDayOfMonth
|
|
);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/* }}} */
|
|
|
|
/**
|
|
* This method receives a string from an RRULE property, and populates this
|
|
* class with all the values.
|
|
*
|
|
* @param string|array $rrule
|
|
*
|
|
* @return void
|
|
*/
|
|
protected function parseRRule($rrule) {
|
|
|
|
if (is_string($rrule)) {
|
|
$rrule = Property\ICalendar\Recur::stringToArray($rrule);
|
|
}
|
|
|
|
foreach ($rrule as $key => $value) {
|
|
|
|
$key = strtoupper($key);
|
|
switch ($key) {
|
|
|
|
case 'FREQ' :
|
|
$value = strtolower($value);
|
|
if (!in_array(
|
|
$value,
|
|
['secondly', 'minutely', 'hourly', 'daily', 'weekly', 'monthly', 'yearly']
|
|
)) {
|
|
throw new InvalidDataException('Unknown value for FREQ=' . strtoupper($value));
|
|
}
|
|
$this->frequency = $value;
|
|
break;
|
|
|
|
case 'UNTIL' :
|
|
$this->until = DateTimeParser::parse($value, $this->startDate->getTimezone());
|
|
|
|
// In some cases events are generated with an UNTIL=
|
|
// parameter before the actual start of the event.
|
|
//
|
|
// Not sure why this is happening. We assume that the
|
|
// intention was that the event only recurs once.
|
|
//
|
|
// So we are modifying the parameter so our code doesn't
|
|
// break.
|
|
if ($this->until < $this->startDate) {
|
|
$this->until = $this->startDate;
|
|
}
|
|
break;
|
|
|
|
case 'INTERVAL' :
|
|
// No break
|
|
|
|
case 'COUNT' :
|
|
$val = (int)$value;
|
|
if ($val < 1) {
|
|
throw new InvalidDataException(strtoupper($key) . ' in RRULE must be a positive integer!');
|
|
}
|
|
$key = strtolower($key);
|
|
$this->$key = $val;
|
|
break;
|
|
|
|
case 'BYSECOND' :
|
|
$this->bySecond = (array)$value;
|
|
break;
|
|
|
|
case 'BYMINUTE' :
|
|
$this->byMinute = (array)$value;
|
|
break;
|
|
|
|
case 'BYHOUR' :
|
|
$this->byHour = (array)$value;
|
|
break;
|
|
|
|
case 'BYDAY' :
|
|
$value = (array)$value;
|
|
foreach ($value as $part) {
|
|
if (!preg_match('#^ (-|\+)? ([1-5])? (MO|TU|WE|TH|FR|SA|SU) $# xi', $part)) {
|
|
throw new InvalidDataException('Invalid part in BYDAY clause: ' . $part);
|
|
}
|
|
}
|
|
$this->byDay = $value;
|
|
break;
|
|
|
|
case 'BYMONTHDAY' :
|
|
$this->byMonthDay = (array)$value;
|
|
break;
|
|
|
|
case 'BYYEARDAY' :
|
|
$this->byYearDay = (array)$value;
|
|
foreach ($this->byYearDay as $byYearDay) {
|
|
if (!is_numeric($byYearDay) || (int)$byYearDay < -366 || (int)$byYearDay == 0 || (int)$byYearDay > 366) {
|
|
throw new InvalidDataException('BYYEARDAY in RRULE must have value(s) from 1 to 366, or -366 to -1!');
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'BYWEEKNO' :
|
|
$this->byWeekNo = (array)$value;
|
|
foreach ($this->byWeekNo as $byWeekNo) {
|
|
if (!is_numeric($byWeekNo) || (int)$byWeekNo < -53 || (int)$byWeekNo == 0 || (int)$byWeekNo > 53) {
|
|
throw new InvalidDataException('BYWEEKNO in RRULE must have value(s) from 1 to 53, or -53 to -1!');
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'BYMONTH' :
|
|
$this->byMonth = (array)$value;
|
|
foreach ($this->byMonth as $byMonth) {
|
|
if (!is_numeric($byMonth) || (int)$byMonth < 1 || (int)$byMonth > 12) {
|
|
throw new InvalidDataException('BYMONTH in RRULE must have value(s) betweeen 1 and 12!');
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'BYSETPOS' :
|
|
$this->bySetPos = (array)$value;
|
|
break;
|
|
|
|
case 'WKST' :
|
|
$this->weekStart = strtoupper($value);
|
|
break;
|
|
|
|
default:
|
|
throw new InvalidDataException('Not supported: ' . strtoupper($key));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* Mappings between the day number and english day name.
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $dayNames = [
|
|
0 => 'Sunday',
|
|
1 => 'Monday',
|
|
2 => 'Tuesday',
|
|
3 => 'Wednesday',
|
|
4 => 'Thursday',
|
|
5 => 'Friday',
|
|
6 => 'Saturday',
|
|
];
|
|
|
|
/**
|
|
* Returns all the occurrences for a monthly frequency with a 'byDay' or
|
|
* 'byMonthDay' expansion for the current month.
|
|
*
|
|
* The returned list is an array of integers with the day of month (1-31).
|
|
*
|
|
* @return array
|
|
*/
|
|
protected function getMonthlyOccurrences() {
|
|
|
|
$startDate = clone $this->currentDate;
|
|
|
|
$byDayResults = [];
|
|
|
|
// Our strategy is to simply go through the byDays, advance the date to
|
|
// that point and add it to the results.
|
|
if ($this->byDay) foreach ($this->byDay as $day) {
|
|
|
|
$dayName = $this->dayNames[$this->dayMap[substr($day, -2)]];
|
|
|
|
|
|
// Dayname will be something like 'wednesday'. Now we need to find
|
|
// all wednesdays in this month.
|
|
$dayHits = [];
|
|
|
|
// workaround for missing 'first day of the month' support in hhvm
|
|
$checkDate = new \DateTime($startDate->format('Y-m-1'));
|
|
// workaround modify always advancing the date even if the current day is a $dayName in hhvm
|
|
if ($checkDate->format('l') !== $dayName) {
|
|
$checkDate = $checkDate->modify($dayName);
|
|
}
|
|
|
|
do {
|
|
$dayHits[] = $checkDate->format('j');
|
|
$checkDate = $checkDate->modify('next ' . $dayName);
|
|
} while ($checkDate->format('n') === $startDate->format('n'));
|
|
|
|
// So now we have 'all wednesdays' for month. It is however
|
|
// possible that the user only really wanted the 1st, 2nd or last
|
|
// wednesday.
|
|
if (strlen($day) > 2) {
|
|
$offset = (int)substr($day, 0, -2);
|
|
|
|
if ($offset > 0) {
|
|
// It is possible that the day does not exist, such as a
|
|
// 5th or 6th wednesday of the month.
|
|
if (isset($dayHits[$offset - 1])) {
|
|
$byDayResults[] = $dayHits[$offset - 1];
|
|
}
|
|
} else {
|
|
|
|
// if it was negative we count from the end of the array
|
|
// might not exist, fx. -5th tuesday
|
|
if (isset($dayHits[count($dayHits) + $offset])) {
|
|
$byDayResults[] = $dayHits[count($dayHits) + $offset];
|
|
}
|
|
}
|
|
} else {
|
|
// There was no counter (first, second, last wednesdays), so we
|
|
// just need to add the all to the list).
|
|
$byDayResults = array_merge($byDayResults, $dayHits);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
$byMonthDayResults = [];
|
|
if ($this->byMonthDay) foreach ($this->byMonthDay as $monthDay) {
|
|
|
|
// Removing values that are out of range for this month
|
|
if ($monthDay > $startDate->format('t') ||
|
|
$monthDay < 0 - $startDate->format('t')) {
|
|
continue;
|
|
}
|
|
if ($monthDay > 0) {
|
|
$byMonthDayResults[] = $monthDay;
|
|
} else {
|
|
// Negative values
|
|
$byMonthDayResults[] = $startDate->format('t') + 1 + $monthDay;
|
|
}
|
|
}
|
|
|
|
// If there was just byDay or just byMonthDay, they just specify our
|
|
// (almost) final list. If both were provided, then byDay limits the
|
|
// list.
|
|
if ($this->byMonthDay && $this->byDay) {
|
|
$result = array_intersect($byMonthDayResults, $byDayResults);
|
|
} elseif ($this->byMonthDay) {
|
|
$result = $byMonthDayResults;
|
|
} else {
|
|
$result = $byDayResults;
|
|
}
|
|
$result = array_unique($result);
|
|
sort($result, SORT_NUMERIC);
|
|
|
|
// The last thing that needs checking is the BYSETPOS. If it's set, it
|
|
// means only certain items in the set survive the filter.
|
|
if (!$this->bySetPos) {
|
|
return $result;
|
|
}
|
|
|
|
$filteredResult = [];
|
|
foreach ($this->bySetPos as $setPos) {
|
|
|
|
if ($setPos < 0) {
|
|
$setPos = count($result) + ($setPos + 1);
|
|
}
|
|
if (isset($result[$setPos - 1])) {
|
|
$filteredResult[] = $result[$setPos - 1];
|
|
}
|
|
}
|
|
|
|
sort($filteredResult, SORT_NUMERIC);
|
|
return $filteredResult;
|
|
|
|
}
|
|
|
|
/**
|
|
* Simple mapping from iCalendar day names to day numbers.
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $dayMap = [
|
|
'SU' => 0,
|
|
'MO' => 1,
|
|
'TU' => 2,
|
|
'WE' => 3,
|
|
'TH' => 4,
|
|
'FR' => 5,
|
|
'SA' => 6,
|
|
];
|
|
|
|
protected function getHours() {
|
|
|
|
$recurrenceHours = [];
|
|
foreach ($this->byHour as $byHour) {
|
|
$recurrenceHours[] = $byHour;
|
|
}
|
|
|
|
return $recurrenceHours;
|
|
}
|
|
|
|
protected function getDays() {
|
|
|
|
$recurrenceDays = [];
|
|
foreach ($this->byDay as $byDay) {
|
|
|
|
// The day may be preceeded with a positive (+n) or
|
|
// negative (-n) integer. However, this does not make
|
|
// sense in 'weekly' so we ignore it here.
|
|
$recurrenceDays[] = $this->dayMap[substr($byDay, -2)];
|
|
|
|
}
|
|
|
|
return $recurrenceDays;
|
|
}
|
|
|
|
protected function getMonths() {
|
|
|
|
$recurrenceMonths = [];
|
|
foreach ($this->byMonth as $byMonth) {
|
|
$recurrenceMonths[] = $byMonth;
|
|
}
|
|
|
|
return $recurrenceMonths;
|
|
}
|
|
}
|