/wp-content/plugins/all-in-one-event-calendar/lib/iCal/iCalcreator-2.20/iCalcreator.class.php

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<?php
/*********************************************************************************/
/**
 *
 * This file is a PHP implementation of rfc2445/rfc5545.
 *
 * @copyright Copyright (c) 2007-2014 Kjell-Inge Gustafsson, kigkonsult, All rights reserved
 * @link      http://kigkonsult.se/iCalcreator/index.php
 * @license   http://kigkonsult.se/downloads/dl.php?f=LGPL
 * @package   iCalcreator
 * @version   v2.20
 */
/**
 * This library 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 2.1 of the License, or (at your option) any later version.
 *
 * This library 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 License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
/*********************************************************************************/
/**
 *         Do NOT remove or change version!!
 *
 * @copyright Copyright (c) 2007-2014 Kjell-Inge Gustafsson, kigkonsult, All rights reserved
 * @license   http://kigkonsult.se/downloads/dl.php?f=LGPL
 */
define( 'ICALCREATOR_VERSION', 'iCalcreator 2.20' );
/*********************************************************************************/
/**
 * vcalendar class
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.9.6 - 2011-05-14
 */
class vcalendar {
            //  calendar property variables
  var $calscale;
  var $method;
  var $prodid;
  var $version;
  var $xprop;
            //  container for calendar components
  var $components;
            //  component config variables
  var $allowEmpty;
  var $unique_id;
  var $language;
  var $directory;
  var $filename;
  var $url;
  var $delimiter;
  var $nl;
  var $format;
  var $dtzid;
            //  component internal variables
  var $attributeDelimiter;
  var $valueInit;
            //  component xCal declaration container
  var $xcaldecl;
/**
 * constructor for calendar object
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.9.6 - 2011-05-14
 * @param array $config
 * @return void
 */
  function vcalendar ( $config = array()) {
    $this->_makeVersion();
    $this->calscale   = null;
    $this->method     = null;
    $this->_makeUnique_id();
    $this->prodid     = null;
    $this->xprop      = array();
    $this->language   = null;
    $this->directory  = null;
    $this->filename   = null;
    $this->url        = null;
    $this->dtzid      = null;
/**
 *   language = <Text identifying a language, as defined in [RFC 1766]>
 */
    if( defined( 'ICAL_LANG' ) && !isset( $config['language'] ))
                                          $config['language']   = ICAL_LANG;
    if( !isset( $config['allowEmpty'] ))  $config['allowEmpty'] = TRUE;
    if( !isset( $config['nl'] ))          $config['nl']         = "\r\n";
    if( !isset( $config['format'] ))      $config['format']     = 'iCal';
    if( !isset( $config['delimiter'] ))   $config['delimiter']  = DIRECTORY_SEPARATOR;
    $this->setConfig( $config );

    $this->xcaldecl   = array();
    $this->components = array();
  }
/**
 * return iCalcreator version number
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.18.5 - 2013-08-29
 * @uses ICALCREATOR_VERSION
 * @return string
 */
  public static function iCalcreatorVersion() {
    return trim( substr( ICALCREATOR_VERSION, strpos( ICALCREATOR_VERSION, ' ' )));
  }
/*********************************************************************************/
/**
 * Property Name: CALSCALE
 */
/**
 * creates formatted output for calendar property calscale
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.10.16 - 2011-10-28
 * @return string
 */
  function createCalscale() {
    if( empty( $this->calscale )) return FALSE;
    switch( $this->format ) {
      case 'xcal':
        return $this->nl.' calscale="'.$this->calscale.'"';
        break;
      default:
        return 'CALSCALE:'.$this->calscale.$this->nl;
        break;
    }
  }
/**
 * set calendar property calscale
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.4.8 - 2008-10-21
 * @param string $value
 * @return void
 */
  function setCalscale( $value ) {
    if( empty( $value )) return FALSE;
    $this->calscale = $value;
  }
/*********************************************************************************/
/**
 * Property Name: METHOD
 */
/**
 * creates formatted output for calendar property method
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.10.16 - 2011-10-28
 * @return string
 */
  function createMethod() {
    if( empty( $this->method )) return FALSE;
    switch( $this->format ) {
      case 'xcal':
        return $this->nl.' method="'.$this->method.'"';
        break;
      default:
        return 'METHOD:'.$this->method.$this->nl;
        break;
    }
  }
/**
 * set calendar property method
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.4.8 - 2008-20-23
 * @param string $value
 * @return bool
 */
  function setMethod( $value ) {
    if( empty( $value )) return FALSE;
    $this->method = $value;
    return TRUE;
  }
/*********************************************************************************/
/**
 * Property Name: PRODID
 *
 */
/**
 * creates formatted output for calendar property prodid
 *
 * @copyright copyright (c) 2007-2013 Kjell-Inge Gustafsson, kigkonsult, All rights reserved
 * @license   http://kigkonsult.se/downloads/dl.php?f=LGPL
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.12.11 - 2012-05-13
 * @return string
 */
  function createProdid() {
    if( !isset( $this->prodid ))
      $this->_makeProdid();
    switch( $this->format ) {
      case 'xcal':
        return $this->nl.' prodid="'.$this->prodid.'"';
        break;
      default:
        $toolbox = new calendarComponent();
        $toolbox->setConfig( $this->getConfig());
        return $toolbox->_createElement( 'PRODID', '', $this->prodid );
        break;
    }
  }
/**
 * make default value for calendar prodid, do NOT alter or remove this method or invoke of this method
 *
 * @copyright copyright (c) 2007-2013 Kjell-Inge Gustafsson, kigkonsult, All rights reserved
 * @license   http://kigkonsult.se/downloads/dl.php?f=LGPL
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.6.8 - 2009-12-30
 * @return void
 */
  function _makeProdid() {
    $this->prodid  = '-//'.$this->unique_id.'//NONSGML kigkonsult.se '.ICALCREATOR_VERSION.'//'.strtoupper( $this->language );
  }
/**
 * Conformance: The property MUST be specified once in an iCalendar object.
 * Description: The vendor of the implementation SHOULD assure that this
 * is a globally unique identifier; using some technique such as an FPI
 * value, as defined in [ISO 9070].
 */
/**
 * make default unique_id for calendar prodid
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 0.3.0 - 2006-08-10
 * @return void
 */
  function _makeUnique_id() {
    $this->unique_id  = ( isset( $_SERVER['SERVER_NAME'] )) ? gethostbyname( $_SERVER['SERVER_NAME'] ) : 'localhost';
  }
/*********************************************************************************/
/**
 * Property Name: VERSION
 *
 * Description: A value of "2.0" corresponds to this memo.
 */
/**
 * creates formatted output for calendar property version

 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.10.16 - 2011-10-28
 * @return string
 */
  function createVersion() {
    if( empty( $this->version ))
      $this->_makeVersion();
    switch( $this->format ) {
      case 'xcal':
        return $this->nl.' version="'.$this->version.'"';
        break;
      default:
        return 'VERSION:'.$this->version.$this->nl;
        break;
    }
  }
/**
 * set default calendar version
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 0.3.0 - 2006-08-10
 * @return void
 */
  function _makeVersion() {
    $this->version = '2.0';
  }
/**
 * set calendar version
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.4.8 - 2008-10-23
 * @param string $value
 * @return void
 */
  function setVersion( $value ) {
    if( empty( $value )) return FALSE;
    $this->version = $value;
    return TRUE;
  }
/*********************************************************************************/
/**
 * Property Name: x-prop
 */
/**
 * creates formatted output for calendar property x-prop, iCal format only
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.16.21 - 2013-05-25
 * @return string
 */
  function createXprop() {
    if( empty( $this->xprop ) || !is_array( $this->xprop )) return FALSE;
    $output        = null;
    $toolbox       = new calendarComponent();
    $toolbox->setConfig( $this->getConfig());
    foreach( $this->xprop as $label => $xpropPart ) {
      if( !isset($xpropPart['value']) || ( empty( $xpropPart['value'] ) && !is_numeric( $xpropPart['value'] ))) {
        if( $this->getConfig( 'allowEmpty' ))
          $output .= $toolbox->_createElement( $label );
        continue;
      }
      $attributes  = $toolbox->_createParams( $xpropPart['params'], array( 'LANGUAGE' ));
      if( is_array( $xpropPart['value'] )) {
        foreach( $xpropPart['value'] as $pix => $theXpart )
          $xpropPart['value'][$pix] = iCalUtilityFunctions::_strrep( $theXpart, $this->format, $this->nl );
        $xpropPart['value']  = implode( ',', $xpropPart['value'] );
      }
      else
        $xpropPart['value'] = iCalUtilityFunctions::_strrep( $xpropPart['value'], $this->format, $this->nl );
      $output     .= $toolbox->_createElement( $label, $attributes, $xpropPart['value'] );
      if( is_array( $toolbox->xcaldecl ) && ( 0 < count( $toolbox->xcaldecl ))) {
        foreach( $toolbox->xcaldecl as $localxcaldecl )
          $this->xcaldecl[] = $localxcaldecl;
      }
    }
    return $output;
  }
/**
 * set calendar property x-prop
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.18.10 - 2013-09-04
 * @param string $label
 * @param string $value
 * @param array $params optional
 * @return bool
 */
  function setXprop( $label, $value, $params=FALSE ) {
    if( empty( $label ))
      return FALSE;
    $label = strtoupper( $label );
    if( 'X-' != substr( $label, 0, 2 ))
      return FALSE;
    if( empty( $value ) && !is_numeric( $value )) if( $this->getConfig( 'allowEmpty' )) $value = ''; else return FALSE;
    $xprop           = array( 'value' => $value );
    $xprop['params'] = iCalUtilityFunctions::_setParams( $params );
    if( !is_array( $this->xprop ))
      $this->xprop = array();
    $this->xprop[$label] = $xprop;
    return TRUE;
  }
/*********************************************************************************/
/**
 * delete calendar property value
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.8.8 - 2011-03-15
 * @param mixed $propName, bool FALSE => X-property
 * @param int $propix, optional, if specific property is wanted in case of multiply occurences
 * @return bool, if successfull delete
 */
  function deleteProperty( $propName=FALSE, $propix=FALSE ) {
    $propName = ( $propName ) ? strtoupper( $propName ) : 'X-PROP';
    if( !$propix )
      $propix = ( isset( $this->propdelix[$propName] ) && ( 'X-PROP' != $propName )) ? $this->propdelix[$propName] + 2 : 1;
    $this->propdelix[$propName] = --$propix;
    $return = FALSE;
    switch( $propName ) {
      case 'CALSCALE':
        if( isset( $this->calscale )) {
          $this->calscale = null;
          $return = TRUE;
        }
        break;
      case 'METHOD':
        if( isset( $this->method )) {
          $this->method   = null;
          $return = TRUE;
        }
        break;
      default:
        $reduced = array();
        if( $propName != 'X-PROP' ) {
          if( !isset( $this->xprop[$propName] )) { unset( $this->propdelix[$propName] ); return FALSE; }
          foreach( $this->xprop as $k => $a ) {
            if(( $k != $propName ) && !empty( $a ))
              $reduced[$k] = $a;
          }
        }
        else {
          if( count( $this->xprop ) <= $propix )  return FALSE;
          $xpropno = 0;
          foreach( $this->xprop as $xpropkey => $xpropvalue ) {
            if( $propix != $xpropno )
              $reduced[$xpropkey] = $xpropvalue;
            $xpropno++;
          }
        }
        $this->xprop = $reduced;
        if( empty( $this->xprop )) {
          unset( $this->propdelix[$propName] );
          return FALSE;
        }
        return TRUE;
    }
    return $return;
  }
/**
 * get calendar property value/params
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.18.10 - 2013-09-04
 * @param string $propName, optional
 * @param int $propix, optional, if specific property is wanted in case of multiply occurences
 * @param bool $inclParam=FALSE
 * @return mixed
 */
  function getProperty( $propName=FALSE, $propix=FALSE, $inclParam=FALSE ) {
    $propName = ( $propName ) ? strtoupper( $propName ) : 'X-PROP';
    if( 'X-PROP' == $propName ) {
      if( !$propix )
        $propix  = ( isset( $this->propix[$propName] )) ? $this->propix[$propName] + 2 : 1;
      $this->propix[$propName] = --$propix;
    }
    else {
      $mProps    = array( 'ATTENDEE', 'CATEGORIES', 'CONTACT', 'RELATED-TO', 'RESOURCES' );
      $vComps    = array('vevent', 'vtodo', 'vjournal', 'vfreebusy' );
      $dateFmt   = '%04d%02d%02d';
    }
    switch( $propName ) {
      case 'ATTENDEE':
      case 'CATEGORIES':
      case 'CONTACT':
      case 'DTSTART':
      case 'GEOLOCATION':
      case 'LOCATION':
      case 'ORGANIZER':
      case 'PRIORITY':
      case 'RESOURCES':
      case 'STATUS':
      case 'SUMMARY':
      case 'RECURRENCE-ID-UID':
      case 'RELATED-TO':
      case 'R-UID':
      case 'UID':
      case 'URL':
        $output  = array();
        foreach ( $this->components as $cix => $component) {
          if( !in_array( $component->objName, $vComps))
            continue;
          if( in_array( $propName, $mProps )) {
            $component->_getProperties( $propName, $output );
            continue;
          }
          elseif(( 3 < strlen( $propName )) && ( 'UID' == substr( $propName, -3 ))) {
            if( FALSE !== ( $content = $component->getProperty( 'RECURRENCE-ID' )))
              $content = $component->getProperty( 'UID' );
          }
          elseif( 'GEOLOCATION' == $propName ) {
            $content = ( FALSE === ( $loc = $component->getProperty( 'LOCATION' ))) ? '' : $loc.' ';
            if( FALSE === ( $geo = $component->getProperty( 'GEO' )))
              continue;
            $content .= iCalUtilityFunctions::_geo2str2( $geo['latitude'],  iCalUtilityFunctions::$geoLatFmt ).
                        iCalUtilityFunctions::_geo2str2( $geo['longitude'], iCalUtilityFunctions::$geoLongFmt ).'/';
          }
          elseif( FALSE === ( $content = $component->getProperty( $propName )))
            continue;
          if(( FALSE === $content ) || empty( $content ))
            continue;
          elseif( is_array( $content )) {
            if( isset( $content['year'] )) {
              $key  = sprintf( $dateFmt, $content['year'], $content['month'], $content['day'] );
              if( !isset( $output[$key] ))
                $output[$key] = 1;
              else
                $output[$key] += 1;
            }
            else {
              foreach( $content as $partValue => $partCount ) {
                if( !isset( $output[$partValue] ))
                  $output[$partValue] = $partCount;
                else
                  $output[$partValue] += $partCount;
              }
            }
          } // end elseif( is_array( $content )) {
          elseif( !isset( $output[$content] ))
            $output[$content] = 1;
          else
            $output[$content] += 1;
        } // end foreach ( $this->components as $cix => $component)
        if( !empty( $output ))
          ksort( $output );
        return $output;
        break;
      case 'CALSCALE':
        return ( !empty( $this->calscale )) ? $this->calscale : FALSE;
        break;
      case 'METHOD':
        return ( !empty( $this->method )) ? $this->method : FALSE;
        break;
      case 'PRODID':
        if( empty( $this->prodid ))
          $this->_makeProdid();
        return $this->prodid;
        break;
      case 'VERSION':
        return ( !empty( $this->version )) ? $this->version : FALSE;
        break;
      default:
        if( $propName != 'X-PROP' ) {
          if( !isset( $this->xprop[$propName] )) return FALSE;
          return ( $inclParam ) ? array( $propName, $this->xprop[$propName] )
                                : array( $propName, $this->xprop[$propName]['value'] );
        }
        else {
          if( empty( $this->xprop )) return FALSE;
          $xpropno = 0;
          foreach( $this->xprop as $xpropkey => $xpropvalue ) {
            if( $propix == $xpropno )
              return ( $inclParam ) ? array( $xpropkey, $this->xprop[$xpropkey] )
                                    : array( $xpropkey, $this->xprop[$xpropkey]['value'] );
            else
              $xpropno++;
          }
          unset( $this->propix[$propName] );
          return FALSE; // not found ??
        }
    }
    return FALSE;
  }
/**
 * general vcalendar property setting
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.2.13 - 2007-11-04
 * @param mixed $args variable number of function arguments,
 *                    first argument is ALWAYS component name,
 *                    second ALWAYS component value!
 * @return bool
 */
  function setProperty () {
    $numargs    = func_num_args();
    if( 1 > $numargs )
      return FALSE;
    $arglist    = func_get_args();
    $arglist[0] = strtoupper( $arglist[0] );
    switch( $arglist[0] ) {
      case 'CALSCALE':
        return $this->setCalscale( $arglist[1] );
      case 'METHOD':
        return $this->setMethod( $arglist[1] );
      case 'VERSION':
        return $this->setVersion( $arglist[1] );
      default:
        if( !isset( $arglist[1] )) $arglist[1] = null;
        if( !isset( $arglist[2] )) $arglist[2] = null;
        return $this->setXprop( $arglist[0], $arglist[1], $arglist[2] );
    }
    return FALSE;
  }
/*********************************************************************************/
/**
 * get vcalendar config values or * calendar components
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.11.7 - 2012-01-12
 * @param mixed $config
 * @return value
 */
  function getConfig( $config = FALSE ) {
    if( !$config ) {
      $return = array();
      $return['ALLOWEMPTY']  = $this->getConfig( 'ALLOWEMPTY' );
      $return['DELIMITER']   = $this->getConfig( 'DELIMITER' );
      $return['DIRECTORY']   = $this->getConfig( 'DIRECTORY' );
      $return['FILENAME']    = $this->getConfig( 'FILENAME' );
      $return['DIRFILE']     = $this->getConfig( 'DIRFILE' );
      $return['FILESIZE']    = $this->getConfig( 'FILESIZE' );
      $return['FORMAT']      = $this->getConfig( 'FORMAT' );
      if( FALSE !== ( $lang  = $this->getConfig( 'LANGUAGE' )))
        $return['LANGUAGE']  = $lang;
      $return['NEWLINECHAR'] = $this->getConfig( 'NEWLINECHAR' );
      $return['UNIQUE_ID']   = $this->getConfig( 'UNIQUE_ID' );
      if( FALSE !== ( $url   = $this->getConfig( 'URL' )))
        $return['URL']       = $url;
      $return['TZID']        = $this->getConfig( 'TZID' );
      return $return;
    }
    switch( strtoupper( $config )) {
      case 'ALLOWEMPTY':
        return $this->allowEmpty;
        break;
      case 'COMPSINFO':
        unset( $this->compix );
        $info = array();
        foreach( $this->components as $cix => $component ) {
          if( empty( $component )) continue;
          $info[$cix]['ordno'] = $cix + 1;
          $info[$cix]['type']  = $component->objName;
          $info[$cix]['uid']   = $component->getProperty( 'uid' );
          $info[$cix]['props'] = $component->getConfig( 'propinfo' );
          $info[$cix]['sub']   = $component->getConfig( 'compsinfo' );
        }
        return $info;
        break;
      case 'DELIMITER':
        return $this->delimiter;
        break;
      case 'DIRECTORY':
        if( empty( $this->directory ) && ( '0' != $this->directory ))
          $this->directory = '.';
        return $this->directory;
        break;
      case 'DIRFILE':
        return $this->getConfig( 'directory' ).$this->getConfig( 'delimiter' ).$this->getConfig( 'filename' );
        break;
      case 'FILEINFO':
        return array( $this->getConfig( 'directory' )
                    , $this->getConfig( 'filename' )
                    , $this->getConfig( 'filesize' ));
        break;
      case 'FILENAME':
        if( empty( $this->filename ) && ( '0' != $this->filename )) {
          if( 'xcal' == $this->format )
            $this->filename = date( 'YmdHis' ).'.xml'; // recommended xcs.. .
          else
            $this->filename = date( 'YmdHis' ).'.ics';
        }
        return $this->filename;
        break;
      case 'FILESIZE':
        $size    = 0;
        if( empty( $this->url )) {
          $dirfile = $this->getConfig( 'dirfile' );
          if( !is_file( $dirfile ) || ( FALSE === ( $size = filesize( $dirfile ))))
            $size = 0;
          clearstatcache();
        }
        return $size;
        break;
      case 'FORMAT':
        return ( $this->format == 'xcal' ) ? 'xCal' : 'iCal';
        break;
      case 'LANGUAGE':
         /* get language for calendar component as defined in [RFC 1766] */
        return $this->language;
        break;
      case 'NL':
      case 'NEWLINECHAR':
        return $this->nl;
        break;
      case 'TZID':
        return $this->dtzid;
        break;
      case 'UNIQUE_ID':
        return $this->unique_id;
        break;
      case 'URL':
        if( !empty( $this->url ))
          return $this->url;
        else
          return FALSE;
        break;
    }
  }
/**
 * general vcalendar config setting
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.18.12 - 2013-09-12
 * @param mixed  $config
 * @param string $value
 * @return void
 */
  function setConfig( $config, $value = FALSE) {
    if( is_array( $config )) {
      $config  = array_change_key_case( $config, CASE_UPPER );
      if( isset( $config['DELIMITER'] )) {
        if( FALSE === $this->setConfig( 'DELIMITER', $config['DELIMITER'] ))
          return FALSE;
        unset( $config['DELIMITER'] );
      }
      if( isset( $config['DIRECTORY'] )) {
        if( FALSE === $this->setConfig( 'DIRECTORY', $config['DIRECTORY'] ))
          return FALSE;
        unset( $config['DIRECTORY'] );
      }
      foreach( $config as $cKey => $cValue ) {
        if( FALSE === $this->setConfig( $cKey, $cValue ))
          return FALSE;
      }
      return TRUE;
    }
    else
    $res = FALSE;
      $config = strtoupper( $config );
    switch( $config ) {
      case 'ALLOWEMPTY':
        $this->allowEmpty = $value;
        $subcfg  = array( 'ALLOWEMPTY' => $value );
        $res = TRUE;
        break;
      case 'DELIMITER':
        $this->delimiter = $value;
        return TRUE;
        break;
      case 'DIRECTORY':
        if( FALSE === ( $value = realpath( rtrim( trim( $value ), $this->delimiter ))))
          return FALSE;
        else {
            /* local directory */
          $this->directory = $value;
          $this->url       = null;
          return TRUE;
        }
        break;
      case 'FILENAME':
        $value   = trim( $value );
        $dirfile = $this->directory.$this->delimiter.$value;
        if( file_exists( $dirfile )) {
            /* local file exists */
          if( is_readable( $dirfile ) || is_writable( $dirfile )) {
            clearstatcache();
            $this->filename = $value;
            return TRUE;
          }
          else
            return FALSE;
        }
        elseif( is_readable( $this->directory ) || is_writable( $this->directory )) {
            /* read- or writable directory */
          clearstatcache();
          $this->filename = $value;
          return TRUE;
        }
        else
          return FALSE;
        break;
      case 'FORMAT':
        $value   = trim( strtolower( $value ));
        if( 'xcal' == $value ) {
          $this->format             = 'xcal';
          $this->attributeDelimiter = $this->nl;
          $this->valueInit          = null;
        }
        else {
          $this->format             = null;
          $this->attributeDelimiter = ';';
          $this->valueInit          = ':';
        }
        $subcfg  = array( 'FORMAT' => $value );
        $res = TRUE;
        break;
      case 'LANGUAGE': // set language for calendar component as defined in [RFC 1766]
        $value   = trim( $value );
        $this->language = $value;
        $this->_makeProdid();
        $subcfg  = array( 'LANGUAGE' => $value );
        $res = TRUE;
        break;
      case 'NL':
      case 'NEWLINECHAR':
        $this->nl = $value;
        if( 'xcal' == $value ) {
          $this->attributeDelimiter = $this->nl;
          $this->valueInit          = null;
        }
        else {
          $this->attributeDelimiter = ';';
          $this->valueInit          = ':';
        }
        $subcfg  = array( 'NL' => $value );
        $res = TRUE;
        break;
      case 'TZID':
        $this->dtzid = $value;
        $subcfg  = array( 'TZID' => $value );
        $res = TRUE;
        break;
      case 'UNIQUE_ID':
        $value   = trim( $value );
        $this->unique_id = $value;
        $this->_makeProdid();
        $subcfg  = array( 'UNIQUE_ID' => $value );
        $res = TRUE;
        break;
      case 'URL':
            /* remote file - URL */
        $value     = str_replace( array( 'HTTP://', 'WEBCAL://', 'webcal://' ), 'http://', trim( $value ));
        $value     = str_replace( 'HTTPS://', 'https://', trim( $value ));
        if(( 'http://' != substr( $value, 0, 7 )) && ( 'https://' != substr( $value, 0, 8 )))
          return FALSE;
        $this->directory = '.';
        $this->url = $value;
        if( '.ics' != strtolower( substr( $value, -4 )))
          unset( $this->filename );
        else
          $this->filename = $basename( $value );
        return TRUE;
        break;
      default:  // any unvalid config key.. .
        return TRUE;
    }
    if( !$res ) return FALSE;
    if( isset( $subcfg ) && !empty( $this->components )) {
      foreach( $subcfg as $cfgkey => $cfgvalue ) {
        foreach( $this->components as $cix => $component ) {
          $res = $component->setConfig( $cfgkey, $cfgvalue, TRUE );
          if( !$res )
            break 2;
          $this->components[$cix] = $component->copy(); // PHP4 compliant
        }
      }
    }
    return $res;
  }
/*********************************************************************************/
/**
 * add calendar component to container
 *
 * alias to setComponent
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 1.x.x - 2007-04-24
 * @param object $component calendar component
 * @return void
 */
  function addComponent( $component ) {
    $this->setComponent( $component );
  }
/**
 * delete calendar component from container
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.8.8 - 2011-03-15
 * @param mixed $arg1 ordno / component type / component uid
 * @param mixed $arg2 optional, ordno if arg1 = component type
 * @return void
 */
  function deleteComponent( $arg1, $arg2=FALSE  ) {
    $argType = $index = null;
    if ( ctype_digit( (string) $arg1 )) {
      $argType = 'INDEX';
      $index   = (int) $arg1 - 1;
    }
    elseif(( strlen( $arg1 ) <= strlen( 'vfreebusy' )) && ( FALSE === strpos( $arg1, '@' ))) {
      $argType = strtolower( $arg1 );
      $index   = ( !empty( $arg2 ) && ctype_digit( (string) $arg2 )) ? (( int ) $arg2 - 1 ) : 0;
    }
    $cix1dC = 0;
    foreach ( $this->components as $cix => $component) {
      if( empty( $component )) continue;
      if(( 'INDEX' == $argType ) && ( $index == $cix )) {
        unset( $this->components[$cix] );
        return TRUE;
      }
      elseif( $argType == $component->objName ) {
        if( $index == $cix1dC ) {
          unset( $this->components[$cix] );
          return TRUE;
        }
        $cix1dC++;
      }
      elseif( !$argType && ($arg1 == $component->getProperty( 'uid' ))) {
        unset( $this->components[$cix] );
        return TRUE;
      }
    }
    return FALSE;
  }
/**
 * get calendar component from container
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.18.10 - 2013-09-04
 * @param mixed $arg1 optional, ordno/component type/ component uid
 * @param mixed $arg2 optional, ordno if arg1 = component type
 * @return object
 */
  function getComponent( $arg1=FALSE, $arg2=FALSE ) {
    $index = $argType = null;
    if ( !$arg1 ) { // first or next in component chain
      $argType = 'INDEX';
      $index   = $this->compix['INDEX'] = ( isset( $this->compix['INDEX'] )) ? $this->compix['INDEX'] + 1 : 1;
    }
    elseif( is_array( $arg1 )) { // array( *[propertyName => propertyValue] )
      $arg2  = implode( '-', array_keys( $arg1 ));
      $index = $this->compix[$arg2] = ( isset( $this->compix[$arg2] )) ? $this->compix[$arg2] + 1 : 1;
      $dateProps  = array( 'DTSTART', 'DTEND', 'DUE', 'CREATED', 'COMPLETED', 'DTSTAMP', 'LAST-MODIFIED', 'RECURRENCE-ID' );
      $otherProps = array( 'ATTENDEE', 'CATEGORIES', 'CONTACT', 'LOCATION', 'ORGANIZER', 'PRIORITY', 'RELATED-TO', 'RESOURCES', 'STATUS', 'SUMMARY', 'UID', 'URL' );
      $mProps     = array( 'ATTENDEE', 'CATEGORIES', 'CONTACT', 'RELATED-TO', 'RESOURCES' );
    }
    elseif ( ctype_digit( (string) $arg1 )) { // specific component in chain
      $argType = 'INDEX';
      $index   = (int) $arg1;
      unset( $this->compix );
    }
    elseif(( strlen( $arg1 ) <= strlen( 'vfreebusy' )) && ( FALSE === strpos( $arg1, '@' ))) { // object class name
      unset( $this->compix['INDEX'] );
      $argType = strtolower( $arg1 );
      if( !$arg2 )
        $index = $this->compix[$argType] = ( isset( $this->compix[$argType] )) ? $this->compix[$argType] + 1 : 1;
      elseif( isset( $arg2 ) && ctype_digit( (string) $arg2 ))
        $index = (int) $arg2;
    }
    elseif(( strlen( $arg1 ) > strlen( 'vfreebusy' )) && ( FALSE !== strpos( $arg1, '@' ))) { // UID as 1st argument
      if( !$arg2 )
        $index = $this->compix[$arg1] = ( isset( $this->compix[$arg1] )) ? $this->compix[$arg1] + 1 : 1;
      elseif( isset( $arg2 ) && ctype_digit( (string) $arg2 ))
        $index = (int) $arg2;
    }
    if( isset( $index ))
      $index  -= 1;
    $ckeys = array_keys( $this->components );
    if( !empty( $index) && ( $index > end(  $ckeys )))
      return FALSE;
    $cix1gC = 0;
    foreach ( $this->components as $cix => $component) {
      if( empty( $component )) continue;
      if(( 'INDEX' == $argType ) && ( $index == $cix ))
        return $component->copy();
      elseif( $argType == $component->objName ) {
        if( $index == $cix1gC )
          return $component->copy();
        $cix1gC++;
      }
      elseif( is_array( $arg1 )) { // array( *[propertyName => propertyValue] )
        $hit  = array();
        $arg1 = array_change_key_case( $arg1, CASE_UPPER );
        foreach( $arg1 as $pName => $pValue ) {
          if( !in_array( $pName, $dateProps ) && !in_array( $pName, $otherProps ))
            continue;
          if( in_array( $pName, $mProps )) { // multiple occurrence
            $propValues = array();
            $component->_getProperties( $pName, $propValues );
            $propValues = array_keys( $propValues );
            $hit[] = ( in_array( $pValue, $propValues )) ? TRUE : FALSE;
            continue;
          } // end   if(.. .// multiple occurrence
          if( FALSE === ( $value = $component->getProperty( $pName ))) { // single occurrence
            $hit[] = FALSE; // missing property
            continue;
          }
          if( 'SUMMARY' == $pName ) { // exists within (any case)
            $hit[] = ( FALSE !== stripos( $value, $pValue )) ? TRUE : FALSE;
            continue;
          }
          if( in_array( $pName, $dateProps )) {
            $valuedate = sprintf( '%04d%02d%02d', $value['year'], $value['month'], $value['day'] );
            if( 8 < strlen( $pValue )) {
              if( isset( $value['hour'] )) {
                if( 'T' == substr( $pValue, 8, 1 ))
                  $pValue = str_replace( 'T', '', $pValue );
                $valuedate .= sprintf( '%02d%02d%02d', $value['hour'], $value['min'], $value['sec'] );
              }
              else
                $pValue = substr( $pValue, 0, 8 );
            }
            $hit[] = ( $pValue == $valuedate ) ? TRUE : FALSE;
            continue;
          }
          elseif( !is_array( $value ))
            $value = array( $value );
          foreach( $value as $part ) {
            $part = ( FALSE !== strpos( $part, ',' )) ? explode( ',', $part ) : array( $part );
            foreach( $part as $subPart ) {
              if( $pValue == $subPart ) {
                $hit[] = TRUE;
                continue 3;
              }
            }
          } // end foreach( $value as $part )
          $hit[] = FALSE; // no hit in property
        } // end  foreach( $arg1 as $pName => $pValue )
        if( in_array( TRUE, $hit )) {
          if( $index == $cix1gC )
            return $component->copy();
          $cix1gC++;
        }
      } // end elseif( is_array( $arg1 )) { // array( *[propertyName => propertyValue] )
      elseif( !$argType && ($arg1 == $component->getProperty( 'uid' ))) { // UID
        if( $index == $cix1gC )
          return $component->copy();
        $cix1gC++;
      }
    } // end foreach ( $this->components.. .
            /* not found.. . */
    unset( $this->compix );
    return FALSE;
  }
/**
 * create new calendar component, already included within calendar
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.6.33 - 2011-01-03
 * @param string $compType component type
 * @return object (reference)
 */
  function & newComponent( $compType ) {
    $config = $this->getConfig();
    $keys   = array_keys( $this->components );
    $ix     = end( $keys) + 1;
    switch( strtoupper( $compType )) {
      case 'EVENT':
      case 'VEVENT':
        $this->components[$ix] = new vevent( $config );
        break;
      case 'TODO':
      case 'VTODO':
        $this->components[$ix] = new vtodo( $config );
        break;
      case 'JOURNAL':
      case 'VJOURNAL':
        $this->components[$ix] = new vjournal( $config );
        break;
      case 'FREEBUSY':
      case 'VFREEBUSY':
        $this->components[$ix] = new vfreebusy( $config );
        break;
      case 'TIMEZONE':
      case 'VTIMEZONE':
        array_unshift( $this->components, new vtimezone( $config ));
        $ix = 0;
        break;
      default:
        return FALSE;
    }
    return $this->components[$ix];
  }
/**
 * select components from calendar on date or selectOption basis
 *
 * Ensure DTSTART is set for every component.
 * No date controls occurs.
 *
 * @author Kjell-Inge Gustafsson, kigkonsult <ical@kigkonsult.se>
 * @since 2.18.19 - 2014-02-01
 * @param mixed $startY optional, start Year,  default current Year ALT. array selecOptions ( *[ <propName> => <uniqueValue> ] )
 * @param int   $startM optional, start Month, default current Month
 * @param int   $startD optional, start Day,   default current Day
 * @param int   $endY   optional, end   Year,  default $startY
 * @param int   $endY   optional, end   Month, default $startM
 * @param int   $endY   optional, end   Day,   default $startD
 * @param mixed $cType  optional, calendar component type(-s), default FALSE=all else string/array type(-s)
 * @param bool  $flat   optional, FALSE (default) => output : array[Year][Month][Day][]
 *                                TRUE            => output : array[] (ignores split)
 * @param bool  $any    optional, TRUE (default) - select component(-s) that occurs within period
 *                                FALSE          - only component(-s) that starts within period
 * @param bool  $split  optional, TRUE (default) - one component copy every DAY it occurs during the
 *                                                 period (implies flat=FALSE)
 *                                FALSE          - one occurance of component only in output array
 * @return array or FALSE
 */
  function selectComponents( $startY=FALSE, $startM=FALSE, $startD=FALSE, $endY=FALSE, $endM=FALSE, $endD=FALSE, $cType=FALSE, $flat=FALSE, $any=TRUE, $split=TRUE ) {
            /* check  if empty calendar */
    if( 0 >= count( $this->components )) return FALSE;
    if( is_array( $startY ))
      return $this->selectComponents2( $startY );
            /* check default dates */
    if( ! $startY ) $startY = date( 'Y' );
    if( ! $startM ) $startM = date( 'm' );
    if( ! $startD ) $startD = date( 'd' );
    $startDate = mktime( 0, 0, 0, $startM, $startD, $startY );
    if( ! $endY )   $endY   = $startY;
    if( ! $endM )   $endM   = $startM;
    if( ! $endD )   $endD   = $startD;
    $endDate   = mktime( 23, 59, 59, $endM, $endD, $endY );
// echo 'selectComp arg='.date( 'Y-m-d H:i:s', $startDate).' -- '.date( 'Y-m-d H:i:s', $endDate)."<br>\n"; $tcnt = 0;// test ###
            /* check component types */
    $validTypes = array('vevent', 'vtodo', 'vjournal', 'vfreebusy' );
    if( empty( $cType ))
      $cType = $validTypes;
    else {
      if( ! is_array( $cType ))
        $cType = array( $cType );
      $cType = array_map( 'strtolower', $cType );
      foreach( $cType as $cix => $theType ) {
        $cType[$cix] = $theType;
        if( !in_array( $theType, $validTypes ))
          $cType[$cix] = 'vevent';
      }
      $cType = array_unique( $cType );
    }
    if(( FALSE === $flat ) && ( FALSE === $any )) // invalid combination
      $split = FALSE;
    if(( TRUE === $flat ) && ( TRUE === $split )) // invalid combination
      $split = FALSE;
            /* iterate components */
    $result       = array();
    $this->sort( 'UID' );
    $compUIDcmp   = null;
    $recurridList = array();
    foreach ( $this->components as $cix => $component ) {
      if( empty( $component )) continue;
      unset( $start );
            /* deselect unvalid type components */
      if( !in_array( $component->objName, $cType ))
        continue;
      $start = $component->getProperty( 'dtstart', FALSE, TRUE );
            /* select due when dtstart is missing */
      if( empty( $start ) && ( $component->objName == 'vtodo' ) && ( FALSE === ( $start = $component->getProperty( 'due', FALSE, TRUE ))))
        continue;
      if( empty( $start ))
        continue;
      if( ! isset( $start['value']['tz'] ) && isset( $start['params']['TZID'] ))
        $start['value']['tz'] = $start['params']['TZID'];
      $start = $start['value'];
      $compUID      = $component->getProperty( 'UID' );
      if( $compUIDcmp != $compUID ) {
        $compUIDcmp = $compUID;
        unset( $exdatelist, $recurridList );
      }
      $SCbools    = array( 'dtendExist' => FALSE,  'dueExist' => FALSE,  'durationExist' => FALSE, 'endAllDayEvent' => FALSE );
      $recurrid   = FALSE;
      $dateFormat = array();
      unset( $end, $startWdate, $endWdate, $rdurWsecs, $rdur, $workstart, $workend ); // clean up
      $startWdate = iCalUtilityFunctions::_SCsetXCurrentDateZ( iCalUtilityFunctions::_date2timestamp( $start ), $start );
      $dateFormat['start'] = ( isset( $start['hour'] )) ? 'Y-m-d H:i:s' : 'Y-m-d';
            /* get end date from dtend/due/duration properties */
      $end = $component->getProperty( 'dtend', FALSE, TRUE );
      if( !empty( $end )) {
        $SCbools[ 'dtendExist'] = TRUE;
        $dateFormat['end'] = ( isset( $end['value']['hour'] )) ? 'Y-m-d H:i:s' : 'Y-m-d';
      }
      if( ! isset( $end['value']['tz'] ) && isset( $end['params']['TZID'] ))
        $end['value']['tz'] = $end['params']['TZID'];
      $end = $end['value'];
      if( empty( $end ) && ( $component->objName == 'vtodo' )) {
        $end = $component->getProperty( 'due' );
        if( !empty( $end )) {
          $SCbools[ 'dueExist'] = TRUE;
          $dateFormat['end'] = ( isset( $end['hour'] )) ? 'Y-m-d H:i:s' : 'Y-m-d';
        }
      }
      if( !empty( $end ) && !isset( $end['hour'] )) {
          /* a DTEND without time part regards an event that ends the day before,
             for an all-day event DTSTART=20071201 DTEND=20071202 (taking place 20071201!!! */
        $SCbools[ 'endAllDayEvent'] = TRUE;
        $endWdate = mktime( 23, 59, 59, $end['month'], ($end['day'] - 1), $end['year'] );
        $end['year']  = date( 'Y', $endWdate );
        $end['month'] = date( 'm', $endWdate );
        $end['day']   = date( 'd', $endWdate );
        $end['hour']  = 23;
        $end['min']   = $end['sec'] = 59;
      }
      if( empty( $end )) {
        $end = $component->getProperty( 'duration', FALSE, FALSE, TRUE );// in dtend (array) format
        if( !empty( $end ))
          if( isset( $start['tz'] ))
            $end['tz'] = $start['tz'];
          $SCbools[ 'durationExist'] = TRUE;
          $dateFormat['end'] = ( isset( $start['hour'] )) ? 'Y-m-d H:i:s' : 'Y-m-d';
// if( !empty($end))  echo 'selectComp 4 start='.implode('-',$start).' end='.implode('-',$end)."<br>\n"; // test ###
      }
      if( empty( $end )) { // assume one day duration if missing end date
        $end = array( 'year' => $start['year'], 'month' => $start['month'], 'day' => $start['day'], 'hour' => 23, 'min' => 59, 'sec' => 59 );
        if( isset( $start['tz'] ))
          $end['tz'] = $start['tz'];
      }
// if( isset($end))  echo 'selectComp 5 start='.implode('-',$start).' end='.implode('-',$end)."<br>\n"; // test ###
      $endWdate = iCalUtilityFunctions::_SCsetXCurrentDateZ( iCalUtilityFunctions::_date2timestamp( $end ), $end );
      if( $endWdate < $startWdate ) { // MUST be after start date!!
        $end = array( 'year' => $start['year'], 'month' => $start['month'], 'day' => $start['day'], 'hour' => 23, 'min' => 59, 'sec' => 59 );
        $endWdate = iCalUtilityFunctions::_date2timestamp( $end );
      }
      $rdurWsecs  = $endWdate - $startWdate; // compute event (component) duration in seconds
            /* make a list of optional exclude dates for component occurence from exrule and exdate */
      $exdatelist = array();
      $workstart  = iCalUtilityFunctions::_timestamp2date(( $startDate - $rdurWsecs ), 6);
      $workend    = iCalUtilityFunctions::_timestamp2date(( $endDate + $rdurWsecs ), 6);
      while( FALSE !== ( $exrule = $component->getProperty( 'exrule' )))    // check exrule
        iCalUtilityFunctions::_recur2date( $exdatelist, $exrule, $start, $workstart, $workend );
      while( FALSE !== ( $exdate = $component->getProperty( 'exdate' ))) {  // check exdate
        foreach( $exdate as $theExdate ) {
          $exWdate = iCalUtilityFunctions::_date2timestamp( $theExdate );
          $exWdate = mktime( 0, 0, 0, date( 'm', $exWdate ), date( 'd', $exWdate ), date( 'Y', $exWdate )); // on a day-basis !!!
          if((( $startDate - $rdurWsecs ) <= $exWdate ) && ( $endDate >= $exWdate ))
            $exdatelist[$exWdate] = TRUE;
        } // end - foreach( $exdate as $theExdate )
      }  // end - check exdate
            /* check recurrence-id (note, a missing sequence is the same as sequence=0 so don't test for sequence), remove hit with reccurr-id date */
      if( FALSE !== ( $recurrid = $component->getProperty( 'recurrence-id' ))) {
        $recurrid = iCalUtilityFunctions::_date2timestamp( $recurrid );
        $recurrid = mktime( 0, 0, 0, date( 'm', $recurrid ), date( 'd', $recurrid ), date( 'Y', $recurrid )); // on a day-basis !!!
        $recurridList[$recurrid] = TRUE;                                             // no recurring to start this day
// echo "adding comp no:$cix with date=".implode($start)." and recurrid=".implode($recurrid)." to recurridList id=$recurrid<br>\n"; // test ###
      } // end recurrence-id/sequence test
            /* select only components with.. . */
      if(( !$any && ( $startWdate >= $startDate ) && ( $startWdate <= $endDate )) || // (dt)start within the period
         (  $any && ( $startWdate < $endDate ) && ( $endWdate >= $startDate ))) {    // occurs within the period
            /* add the selected component (WITHIN valid dates) to output array */
        if( $flat ) { // any=true/false, ignores split
          if( !$recurrid )
            $result[$compUID] = $component->copy(); // copy original to output (but not anyone with recurrence-id)
        }
        elseif( $split ) { // split the original component
          if( $endWdate > $endDate )
            $endWdate = $endDate;     // use period end date
          $rstart   = ( $startWdate < $startDate ) ? $startDate : $startWdate; // use period start date
          $startYMD = $rstartYMD = date( 'Ymd', $rstart );
          $endYMD   = date( 'Ymd', $endWdate );
          $checkDate = mktime( 0, 0, 0, date( 'm', $rstart ), date( 'd', $rstart ), date( 'Y', $rstart ) ); // on a day-basis !!!
// echo "going to test comp no:$cix with rstartYMD=$rstartYMD, endYMD=$endYMD and checkDate($checkDate) with recurridList=".implode(',',array_keys($recurridList))."<br>\n"; // test ###
          if( !isset( $exdatelist[$checkDate] )) { // exclude any recurrence START date, found in exdatelist
            while( $rstartYMD <= $endYMD ) { // iterate
              if( isset( $exdatelist[$checkDate] ) ||                   // exclude any recurrence date, found in the exdatelist
                ( isset( $recurridList[$checkDate] ) && !$recurrid )) { // or in the recurridList, but not itself
// echo "skipping comp no:$cix with datestart=$rstartYMD and checkdate=$checkDate<br>\n"; // test ###
                $rstart   += ( 24 *3600 ); // step one day
                $rstartYMD = date( 'Ymd', $rstart );
                continue;
              }
              iCalUtilityFunctions::_SCsetXCurrentStart( $component, $dateFormat, $checkDate, $rstartYMD, $rstart, $startYMD, $start );
              iCalUtilityFunctions::_SCsetXCurrentEnd(   $component, $dateFormat, $rstart, $rstartYMD, $endWdate, $endYMD, $end, $SCbools );
              $wd        = getdate( $rstart );
              $result[$wd['year']][$wd['mon']][$wd['mday']][$compUID] = $component->copy(); // copy to output
              $rstart   += ( 24 *3600 ); // step one day
              $rstartYMD = date( 'Ymd', $rstart );
              $checkDate = mktime( 0, 0, 0, date( 'm', $rstart ), date( 'd', $rstart ), date( 'Y', $rstart ) ); // on a day-basis !!!
            } // end while( $rstart <= $endWdate )
          } // end if( !isset( $exdatelist[$checkDate] ))
        } // end elseif( $split )   -  else use component date
        elseif( $recurrid && !$flat && !$any && !$split )
          $continue = TRUE;
        else { // !$flat && !$split, i.e. no flat array and DTSTART within period
          $checkDate = mktime( 0, 0, 0, date( 'm', $startWdate ), date( 'd', $startWdate ), date( 'Y', $startWdate ) ); // on a day-basis !!!
// echo "going to test comp no:$cix with checkDate=$checkDate with recurridList=".implode(',',array_keys($recurridList)); // test ###
          if(( !$any || !isset( $exdatelist[$checkDate] )) &&   // exclude any recurrence date, found in exdatelist
              ( !isset( $recurridList[$checkDate] ) || $recurrid )) { // or in the recurridList, but not itself
// echo " and copied to output<br>\n"; // test ###
            $wd = getdate( $startWdate );
            $result[$wd['year']][$wd['mon']][$wd['mday']][$compUID] = $component->copy(); // copy to output
          }
        }
      } // end if(( $startWdate >= $startDate ) && ( $startWdate <= $endDate ))
            /* if 'any' components, check components with reccurrence rules, removing all excluding dates */
      if( TRUE === $any ) {
            /* make a list of optional repeating dates for component occurence, rrule, rdate */
        $recurlist = array();
        while( FALSE !== ( $rrule = $component->getProperty( 'rrule' )))    // check rrule
          iCalUtilityFunctions::_recur2date( $recurlist, $rrule, $start, $workstart, $workend );
        foreach( $recurlist as $recurkey => $recurvalue )                   // key=match date as timestamp
          $recurlist[$recurkey] = $rdurWsecs;                               // add duration in seconds
        while( FALSE !== ( $rdate = $component->getProperty( 'rdate' ))) {  // check rdate
          foreach( $rdate as $theRdate ) {
            if( is_array( $theRdate ) && ( 2 == count( $theRdate )) &&      // all days within PERIOD
                   array_key_exists( '0', $theRdate ) &&  array_key_exists( '1', $theRdate )) {
              $rstart = iCalUtilityFunctions::_date2timestamp( $theRdate[0] );
              if(( $rstart < ( $startDate - $rdurWsecs )) || ( $rstart > $endDate ))
                continue;
              if( isset( $theRdate[1]['year'] )) // date-date period
                $rend = iCalUtilityFunctions::_date2timestamp( $theRdate[1] );
              else {                             // date-duration period
                $rend = iCalUtilityFunctions::_duration2date( …