aboutsummaryrefslogtreecommitdiffstats
path: root/calendar/lib/SabreDAV/vendor/oldsabre/vobject/lib/Sabre/VObject/DateTimeParser.php
diff options
context:
space:
mode:
Diffstat (limited to 'calendar/lib/SabreDAV/vendor/oldsabre/vobject/lib/Sabre/VObject/DateTimeParser.php')
-rw-r--r--calendar/lib/SabreDAV/vendor/oldsabre/vobject/lib/Sabre/VObject/DateTimeParser.php181
1 files changed, 181 insertions, 0 deletions
diff --git a/calendar/lib/SabreDAV/vendor/oldsabre/vobject/lib/Sabre/VObject/DateTimeParser.php b/calendar/lib/SabreDAV/vendor/oldsabre/vobject/lib/Sabre/VObject/DateTimeParser.php
new file mode 100644
index 0000000..1b388fa
--- /dev/null
+++ b/calendar/lib/SabreDAV/vendor/oldsabre/vobject/lib/Sabre/VObject/DateTimeParser.php
@@ -0,0 +1,181 @@
+<?php
+
+namespace OldSabre\VObject;
+
+/**
+ * DateTimeParser
+ *
+ * This class is responsible for parsing the several different date and time
+ * formats iCalendar and vCards have.
+ *
+ * @copyright Copyright (C) 2007-2013 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+class DateTimeParser {
+
+ /**
+ * Parses an iCalendar (rfc5545) formatted datetime and returns a DateTime object
+ *
+ * Specifying a reference timezone is optional. It will only be used
+ * if the non-UTC format is used. The argument is used as a reference, the
+ * returned DateTime object will still be in the UTC timezone.
+ *
+ * @param string $dt
+ * @param DateTimeZone $tz
+ * @return DateTime
+ */
+ static public function parseDateTime($dt,\DateTimeZone $tz = null) {
+
+ // Format is YYYYMMDD + "T" + hhmmss
+ $result = preg_match('/^([1-4][0-9]{3})([0-1][0-9])([0-3][0-9])T([0-2][0-9])([0-5][0-9])([0-5][0-9])([Z]?)$/',$dt,$matches);
+
+ if (!$result) {
+ throw new \LogicException('The supplied iCalendar datetime value is incorrect: ' . $dt);
+ }
+
+ if ($matches[7]==='Z' || is_null($tz)) {
+ $tz = new \DateTimeZone('UTC');
+ }
+ $date = new \DateTime($matches[1] . '-' . $matches[2] . '-' . $matches[3] . ' ' . $matches[4] . ':' . $matches[5] .':' . $matches[6], $tz);
+
+ // Still resetting the timezone, to normalize everything to UTC
+ $date->setTimeZone(new \DateTimeZone('UTC'));
+ return $date;
+
+ }
+
+ /**
+ * Parses an iCalendar (rfc5545) formatted date and returns a DateTime object
+ *
+ * @param string $date
+ * @return DateTime
+ */
+ static public function parseDate($date) {
+
+ // Format is YYYYMMDD
+ $result = preg_match('/^([1-4][0-9]{3})([0-1][0-9])([0-3][0-9])$/',$date,$matches);
+
+ if (!$result) {
+ throw new \LogicException('The supplied iCalendar date value is incorrect: ' . $date);
+ }
+
+ $date = new \DateTime($matches[1] . '-' . $matches[2] . '-' . $matches[3], new \DateTimeZone('UTC'));
+ return $date;
+
+ }
+
+ /**
+ * Parses an iCalendar (RFC5545) formatted duration value.
+ *
+ * This method will either return a DateTimeInterval object, or a string
+ * suitable for strtotime or DateTime::modify.
+ *
+ * @param string $duration
+ * @param bool $asString
+ * @return DateInterval|string
+ */
+ static public function parseDuration($duration, $asString = false) {
+
+ $result = preg_match('/^(?P<plusminus>\+|-)?P((?P<week>\d+)W)?((?P<day>\d+)D)?(T((?P<hour>\d+)H)?((?P<minute>\d+)M)?((?P<second>\d+)S)?)?$/', $duration, $matches);
+ if (!$result) {
+ throw new \LogicException('The supplied iCalendar duration value is incorrect: ' . $duration);
+ }
+
+ if (!$asString) {
+ $invert = false;
+ if ($matches['plusminus']==='-') {
+ $invert = true;
+ }
+
+
+ $parts = array(
+ 'week',
+ 'day',
+ 'hour',
+ 'minute',
+ 'second',
+ );
+ foreach($parts as $part) {
+ $matches[$part] = isset($matches[$part])&&$matches[$part]?(int)$matches[$part]:0;
+ }
+
+
+ // We need to re-construct the $duration string, because weeks and
+ // days are not supported by DateInterval in the same string.
+ $duration = 'P';
+ $days = $matches['day'];
+ if ($matches['week']) {
+ $days+=$matches['week']*7;
+ }
+ if ($days)
+ $duration.=$days . 'D';
+
+ if ($matches['minute'] || $matches['second'] || $matches['hour']) {
+ $duration.='T';
+
+ if ($matches['hour'])
+ $duration.=$matches['hour'].'H';
+
+ if ($matches['minute'])
+ $duration.=$matches['minute'].'M';
+
+ if ($matches['second'])
+ $duration.=$matches['second'].'S';
+
+ }
+
+ if ($duration==='P') {
+ $duration = 'PT0S';
+ }
+ $iv = new \DateInterval($duration);
+ if ($invert) $iv->invert = true;
+
+ return $iv;
+
+ }
+
+
+
+ $parts = array(
+ 'week',
+ 'day',
+ 'hour',
+ 'minute',
+ 'second',
+ );
+
+ $newDur = '';
+ foreach($parts as $part) {
+ if (isset($matches[$part]) && $matches[$part]) {
+ $newDur.=' '.$matches[$part] . ' ' . $part . 's';
+ }
+ }
+
+ $newDur = ($matches['plusminus']==='-'?'-':'+') . trim($newDur);
+ if ($newDur === '+') { $newDur = '+0 seconds'; };
+ return $newDur;
+
+ }
+
+ /**
+ * Parses either a Date or DateTime, or Duration value.
+ *
+ * @param string $date
+ * @param DateTimeZone|string $referenceTZ
+ * @return DateTime|DateInterval
+ */
+ static public function parse($date, $referenceTZ = null) {
+
+ if ($date[0]==='P' || ($date[0]==='-' && $date[1]==='P')) {
+ return self::parseDuration($date);
+ } elseif (strlen($date)===8) {
+ return self::parseDate($date);
+ } else {
+ return self::parseDateTime($date, $referenceTZ);
+ }
+
+ }
+
+
+}

© 2014-2024 Faster IT GmbH | imprint | privacy policy