function _setPropsInMAPI($mapimessage, $message, $mapping)
 {
     foreach ($mapping as $asprop => $mapiprop) {
         if (isset($message->{$asprop})) {
             $mapiprop = $this->_getPropIDFromString($mapiprop);
             // UTF8->windows1252.. this is ok for all numerical values
             if (mapi_prop_type($mapiprop) != PT_BINARY && mapi_prop_type($mapiprop) != PT_MV_BINARY) {
                 if (is_array($message->{$asprop})) {
                     $value = array_map("u2wi", $message->{$asprop});
                 } else {
                     $value = u2wi($message->{$asprop});
                 }
             } else {
                 $value = $message->{$asprop};
             }
             // Make sure the php values are the correct type
             switch (mapi_prop_type($mapiprop)) {
                 case PT_BINARY:
                 case PT_STRING8:
                     settype($value, "string");
                     break;
                 case PT_BOOLEAN:
                     settype($value, "boolean");
                     break;
                 case PT_SYSTIME:
                 case PT_LONG:
                     settype($value, "integer");
                     break;
             }
             // decode base64 value
             if ($mapiprop == PR_RTF_COMPRESSED) {
                 $value = base64_decode($value);
                 if (strlen($value) == 0) {
                     continue;
                 }
                 // PDA will sometimes give us an empty RTF, which we'll ignore.
                 // Note that you can still remove notes because when you remove notes it gives
                 // a valid compressed RTF with nothing in it.
             }
             mapi_setprops($mapimessage, array($mapiprop => $value));
         }
     }
 }

 /**
  * Sets the properties in a MAPI object according to an Sync object and a property mapping
  *
  * @param mixed             $mapimessage
  * @param SyncObject        $message
  * @param array             $mapping
  *
  * @access private
  * @return
  */
 private function setPropsInMAPI($mapimessage, $message, $mapping)
 {
     $mapiprops = $this->getPropIdsFromStrings($mapping);
     $unsetVars = $message->getUnsetVars();
     $propsToDelete = array();
     $propsToSet = array();
     foreach ($mapiprops as $asprop => $mapiprop) {
         if (isset($message->{$asprop})) {
             // UTF8->windows1252.. this is ok for all numerical values
             if (mapi_prop_type($mapiprop) != PT_BINARY && mapi_prop_type($mapiprop) != PT_MV_BINARY) {
                 if (is_array($message->{$asprop})) {
                     $value = array_map("u2wi", $message->{$asprop});
                 } else {
                     $value = u2wi($message->{$asprop});
                 }
             } else {
                 $value = $message->{$asprop};
             }
             // Make sure the php values are the correct type
             switch (mapi_prop_type($mapiprop)) {
                 case PT_BINARY:
                 case PT_STRING8:
                     settype($value, "string");
                     break;
                 case PT_BOOLEAN:
                     settype($value, "boolean");
                     break;
                 case PT_SYSTIME:
                 case PT_LONG:
                     settype($value, "integer");
                     break;
             }
             // decode base64 value
             if ($mapiprop == PR_RTF_COMPRESSED) {
                 $value = base64_decode($value);
                 if (strlen($value) == 0) {
                     continue;
                 }
                 // PDA will sometimes give us an empty RTF, which we'll ignore.
                 // Note that you can still remove notes because when you remove notes it gives
                 // a valid compressed RTF with nothing in it.
             }
             // if an "empty array" is to be saved, it the mvprop should be deleted - fixes Mantis #468
             if (is_array($value) && empty($value)) {
                 $propsToDelete[] = $mapiprop;
                 ZLog::Write(LOGLEVEL_DEBUG, sprintf("MAPIProvider->setPropsInMAPI(): Property '%s' to be deleted as it is an empty array", $asprop));
             } else {
                 // all properties will be set at once
                 $propsToSet[$mapiprop] = $value;
             }
         } elseif (in_array($asprop, $unsetVars)) {
             $propsToDelete[] = $mapiprop;
         }
     }
     mapi_setprops($mapimessage, $propsToSet);
     if (mapi_last_hresult()) {
         Zlog::Write(LOGLEVEL_WARN, sprintf("Failed to set properties, trying to set them separately. Error code was:%x", mapi_last_hresult()));
         $this->setPropsIndividually($mapimessage, $propsToSet, $mapiprops);
     }
     mapi_deleteprops($mapimessage, $propsToDelete);
     //clean up
     unset($unsetVars, $propsToDelete);
 }

 /**
  * Escapes a string
  *
  * @param string        $data           string to be escaped
  *
  * @access private
  * @return string
  */
 function escape($data)
 {
     if (is_array($data)) {
         foreach ($data as $key => $val) {
             $data[$key] = $this->escape($val);
         }
         return $data;
     }
     $data = str_replace("\r\n", "\n", $data);
     $data = str_replace("\r", "\n", $data);
     $data = str_replace(array('\\', ';', ',', "\n"), array('\\\\', '\\;', '\\,', '\\n'), $data);
     return u2wi($data);
 }

 /**
  * Imports a change on a folder
  *
  * @param object        $folder     SyncFolder
  *
  * @access public
  * @return string       id of the folder
  * @throws StatusException
  */
 public function ImportFolderChange($folder)
 {
     $id = isset($folder->serverid) ? $folder->serverid : false;
     $parent = $folder->parentid;
     $displayname = u2wi($folder->displayname);
     $type = $folder->type;
     if (Utils::IsSystemFolder($type)) {
         throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, system folder can not be created/modified", Utils::PrintAsString($folder->serverid), $folder->parentid, $displayname), SYNC_FSSTATUS_SYSTEMFOLDER);
     }
     // create a new folder if $id is not set
     if (!$id) {
         // the root folder is "0" - get IPM_SUBTREE
         if ($parent == "0") {
             $parentprops = mapi_getprops($this->store, array(PR_IPM_SUBTREE_ENTRYID));
             if (isset($parentprops[PR_IPM_SUBTREE_ENTRYID])) {
                 $parentfentryid = $parentprops[PR_IPM_SUBTREE_ENTRYID];
             }
         } else {
             $parentfentryid = mapi_msgstore_entryidfromsourcekey($this->store, hex2bin($parent));
         }
         if (!$parentfentryid) {
             throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, unable to open parent folder (no entry id)", Utils::PrintAsString(false), $folder->parentid, $displayname), SYNC_FSSTATUS_PARENTNOTFOUND);
         }
         $parentfolder = mapi_msgstore_openentry($this->store, $parentfentryid);
         if (!$parentfolder) {
             throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, unable to open parent folder (open entry)", Utils::PrintAsString(false), $folder->parentid, $displayname), SYNC_FSSTATUS_PARENTNOTFOUND);
         }
         //  mapi_folder_createfolder() fails if a folder with this name already exists -> MAPI_E_COLLISION
         $newfolder = mapi_folder_createfolder($parentfolder, $displayname, "");
         if (mapi_last_hresult()) {
             throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, mapi_folder_createfolder() failed: 0x%X", Utils::PrintAsString(false), $folder->parentid, $displayname, mapi_last_hresult()), SYNC_FSSTATUS_FOLDEREXISTS);
         }
         mapi_setprops($newfolder, array(PR_CONTAINER_CLASS => MAPIUtils::GetContainerClassFromFolderType($type)));
         $props = mapi_getprops($newfolder, array(PR_SOURCE_KEY));
         if (isset($props[PR_SOURCE_KEY])) {
             $sourcekey = bin2hex($props[PR_SOURCE_KEY]);
             ZLog::Write(LOGLEVEL_DEBUG, sprintf("Created folder '%s' with id: '%s'", $displayname, $sourcekey));
             return $sourcekey;
         } else {
             throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, folder created but PR_SOURCE_KEY not available: 0x%X", Utils::PrintAsString($folder->serverid), $folder->parentid, $displayname, mapi_last_hresult()), SYNC_FSSTATUS_SERVERERROR);
         }
         return false;
     }
     // update folder
     $entryid = mapi_msgstore_entryidfromsourcekey($this->store, hex2bin($id));
     if (!$entryid) {
         throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, unable to open folder (no entry id): 0x%X", Utils::PrintAsString($folder->serverid), $folder->parentid, $displayname, mapi_last_hresult()), SYNC_FSSTATUS_PARENTNOTFOUND);
     }
     $folder = mapi_msgstore_openentry($this->store, $entryid);
     if (!$folder) {
         throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, unable to open folder (open entry): 0x%X", Utils::PrintAsString($folder->serverid), $folder->parentid, $displayname, mapi_last_hresult()), SYNC_FSSTATUS_PARENTNOTFOUND);
     }
     $props = mapi_getprops($folder, array(PR_SOURCE_KEY, PR_PARENT_SOURCE_KEY, PR_DISPLAY_NAME, PR_CONTAINER_CLASS));
     if (!isset($props[PR_SOURCE_KEY]) || !isset($props[PR_PARENT_SOURCE_KEY]) || !isset($props[PR_DISPLAY_NAME]) || !isset($props[PR_CONTAINER_CLASS])) {
         throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, folder data not available: 0x%X", Utils::PrintAsString($folder->serverid), $folder->parentid, $displayname, mapi_last_hresult()), SYNC_FSSTATUS_SERVERERROR);
     }
     if ($parent == "0") {
         $parentprops = mapi_getprops($this->store, array(PR_IPM_SUBTREE_ENTRYID));
         $parentfentryid = $parentprops[PR_IPM_SUBTREE_ENTRYID];
         $mapifolder = mapi_msgstore_openentry($this->store, $parentfentryid);
         $rootfolderprops = mapi_getprops($mapifolder, array(PR_SOURCE_KEY));
         $parent = bin2hex($rootfolderprops[PR_SOURCE_KEY]);
         ZLog::Write(LOGLEVEL_DEBUG, sprintf("ImportChangesICS->ImportFolderChange(): resolved AS parent '0' to sourcekey '%s'", $parent));
     }
     // In theory the parent id could change, which means that the folder was moved.
     // It is unknown if any device supports this, so we do currently not implement it (no known device is able to do this)
     if (bin2hex($props[PR_PARENT_SOURCE_KEY]) !== $parent) {
         throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Folder was moved to another location, which is currently not supported. Please report this to the Z-Push dev team together with the WBXML log and your device details (model, firmware etc).", Utils::PrintAsString($folder->serverid), $folder->parentid, $displayname, mapi_last_hresult()), SYNC_FSSTATUS_UNKNOWNERROR);
     }
     $props = array(PR_DISPLAY_NAME => $displayname);
     mapi_setprops($folder, $props);
     mapi_savechanges($folder);
     if (mapi_last_hresult()) {
         throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, mapi_savechanges() failed: 0x%X", Utils::PrintAsString($folder->serverid), $folder->parentid, $displayname, mapi_last_hresult()), SYNC_FSSTATUS_SERVERERROR);
     }
     ZLog::Write(LOGLEVEL_DEBUG, "Imported changes for folder: {$id}");
     return $id;
 }

 /**
  * Adds the recipients to an email message from a RFC822 message headers.
  *
  * @param MIMEMessageHeader $headers
  * @param MAPIMessage $mapimessage
  */
 private function addRecipients($headers, &$mapimessage)
 {
     $toaddr = $ccaddr = $bccaddr = array();
     $Mail_RFC822 = new Mail_RFC822();
     if (isset($headers["to"])) {
         $toaddr = $Mail_RFC822->parseAddressList($headers["to"]);
     }
     if (isset($headers["cc"])) {
         $ccaddr = $Mail_RFC822->parseAddressList($headers["cc"]);
     }
     if (isset($headers["bcc"])) {
         $bccaddr = $Mail_RFC822->parseAddressList($headers["bcc"]);
     }
     if (empty($toaddr)) {
         throw new StatusException(sprintf("ZarafaBackend->SendMail(): 'To' address in RFC822 message not found or unparsable. To header: '%s'", isset($headers["to"]) ? $headers["to"] : ''), SYNC_COMMONSTATUS_MESSHASNORECIP);
     }
     // Add recipients
     $recips = array();
     foreach (array(MAPI_TO => $toaddr, MAPI_CC => $ccaddr, MAPI_BCC => $bccaddr) as $type => $addrlist) {
         foreach ($addrlist as $addr) {
             $mapirecip[PR_ADDRTYPE] = "SMTP";
             $mapirecip[PR_EMAIL_ADDRESS] = $addr->mailbox . "@" . $addr->host;
             if (isset($addr->personal) && strlen($addr->personal) > 0) {
                 $mapirecip[PR_DISPLAY_NAME] = u2wi($addr->personal);
             } else {
                 $mapirecip[PR_DISPLAY_NAME] = $mapirecip[PR_EMAIL_ADDRESS];
             }
             $mapirecip[PR_RECIPIENT_TYPE] = $type;
             $mapirecip[PR_ENTRYID] = mapi_createoneoff($mapirecip[PR_DISPLAY_NAME], $mapirecip[PR_ADDRTYPE], $mapirecip[PR_EMAIL_ADDRESS]);
             array_push($recips, $mapirecip);
         }
     }
     mapi_message_modifyrecipients($mapimessage, 0, $recips);
 }

 function _storeAttachment($mapimessage, $part)
 {
     // attachment
     $attach = mapi_message_createattach($mapimessage);
     $filename = "";
     // Filename is present in both Content-Type: name=.. and in Content-Disposition: filename=
     if (isset($part->ctype_parameters["name"])) {
         $filename = $part->ctype_parameters["name"];
     } else {
         if (isset($part->d_parameters["name"])) {
             $filename = $part->d_parameters["filename"];
         } else {
             if (isset($part->d_parameters["filename"])) {
                 // sending appointment with nokia & android only filename is set
                 $filename = $part->d_parameters["filename"];
             } else {
                 if (isset($part->d_parameters["filename*0"])) {
                     for ($i = 0; $i < count($part->d_parameters); $i++) {
                         if (isset($part->d_parameters["filename*" . $i])) {
                             $filename .= $part->d_parameters["filename*" . $i];
                         }
                     }
                 } else {
                     $filename = "untitled";
                 }
             }
         }
     }
     // Android just doesn't send content-type, so mimeDecode doesn't performs base64 decoding
     // on meeting requests text/calendar somewhere inside content-transfer-encoding
     if (isset($part->headers['content-transfer-encoding']) && strpos($part->headers['content-transfer-encoding'], 'base64')) {
         if (strpos($part->headers['content-transfer-encoding'], 'text/calendar') !== false) {
             $part->ctype_primary = 'text';
             $part->ctype_secondary = 'calendar';
         }
         if (!isset($part->headers['content-type'])) {
             $part->body = base64_decode($part->body);
         }
     }
     // Set filename and attachment type
     mapi_setprops($attach, array(PR_ATTACH_LONG_FILENAME => u2wi($filename), PR_ATTACH_METHOD => ATTACH_BY_VALUE));
     // Set attachment data
     mapi_setprops($attach, array(PR_ATTACH_DATA_BIN => $part->body));
     // Set MIME type
     mapi_setprops($attach, array(PR_ATTACH_MIME_TAG => $part->ctype_primary . "/" . $part->ctype_secondary));
     mapi_savechanges($attach);
 }

 /**
  * Imports a change on a folder
  *
  * @param object        $folder     SyncFolder
  *
  * @access public
  * @return string       id of the folder
  * @throws StatusException
  */
 public function ImportFolderChange($folder)
 {
     $id = isset($folder->serverid) ? $folder->serverid : false;
     $parent = $folder->parentid;
     $displayname = u2wi($folder->displayname);
     $type = $folder->type;
     if (Utils::IsSystemFolder($type)) {
         throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, system folder can not be created/modified", Utils::PrintAsString($folder->serverid), $folder->parentid, $displayname), SYNC_FSSTATUS_SYSTEMFOLDER);
     }
     // create a new folder if $id is not set
     if (!$id) {
         // the root folder is "0" - get IPM_SUBTREE
         if ($parent == "0") {
             $parentprops = mapi_getprops($this->store, array(PR_IPM_SUBTREE_ENTRYID));
             if (isset($parentprops[PR_IPM_SUBTREE_ENTRYID])) {
                 $parentfentryid = $parentprops[PR_IPM_SUBTREE_ENTRYID];
             }
         } else {
             $parentfentryid = mapi_msgstore_entryidfromsourcekey($this->store, hex2bin($parent));
         }
         if (!$parentfentryid) {
             throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, unable to open parent folder (no entry id)", Utils::PrintAsString(false), $folder->parentid, $displayname), SYNC_FSSTATUS_PARENTNOTFOUND);
         }
         $parentfolder = mapi_msgstore_openentry($this->store, $parentfentryid);
         if (!$parentfolder) {
             throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, unable to open parent folder (open entry)", Utils::PrintAsString(false), $folder->parentid, $displayname), SYNC_FSSTATUS_PARENTNOTFOUND);
         }
         //  mapi_folder_createfolder() fails if a folder with this name already exists -> MAPI_E_COLLISION
         $newfolder = mapi_folder_createfolder($parentfolder, $displayname, "");
         if (mapi_last_hresult()) {
             throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, mapi_folder_createfolder() failed: 0x%X", Utils::PrintAsString(false), $folder->parentid, $displayname, mapi_last_hresult()), SYNC_FSSTATUS_FOLDEREXISTS);
         }
         mapi_setprops($newfolder, array(PR_CONTAINER_CLASS => MAPIUtils::GetContainerClassFromFolderType($type)));
         $props = mapi_getprops($newfolder, array(PR_SOURCE_KEY));
         if (isset($props[PR_SOURCE_KEY])) {
             $sourcekey = bin2hex($props[PR_SOURCE_KEY]);
             ZLog::Write(LOGLEVEL_DEBUG, sprintf("Created folder '%s' with id: '%s'", $displayname, $sourcekey));
             return $sourcekey;
         } else {
             throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, folder created but PR_SOURCE_KEY not available: 0x%X", Utils::PrintAsString($folder->serverid), $folder->parentid, $displayname, mapi_last_hresult()), SYNC_FSSTATUS_SERVERERROR);
         }
         return false;
     }
     // open folder for update
     $entryid = mapi_msgstore_entryidfromsourcekey($this->store, hex2bin($id));
     if (!$entryid) {
         throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, unable to open folder (no entry id): 0x%X", Utils::PrintAsString($folder->serverid), $folder->parentid, $displayname, mapi_last_hresult()), SYNC_FSSTATUS_PARENTNOTFOUND);
     }
     // check if this is a MAPI default folder
     if ($this->mapiprovider->IsMAPIDefaultFolder($entryid)) {
         throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, MAPI default folder can not be created/modified", Utils::PrintAsString($folder->serverid), $folder->parentid, $displayname), SYNC_FSSTATUS_SYSTEMFOLDER);
     }
     $mfolder = mapi_msgstore_openentry($this->store, $entryid);
     if (!$mfolder) {
         throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, unable to open folder (open entry): 0x%X", Utils::PrintAsString($folder->serverid), $folder->parentid, $displayname, mapi_last_hresult()), SYNC_FSSTATUS_PARENTNOTFOUND);
     }
     $props = mapi_getprops($mfolder, array(PR_SOURCE_KEY, PR_PARENT_SOURCE_KEY, PR_DISPLAY_NAME, PR_CONTAINER_CLASS));
     if (!isset($props[PR_SOURCE_KEY]) || !isset($props[PR_PARENT_SOURCE_KEY]) || !isset($props[PR_DISPLAY_NAME]) || !isset($props[PR_CONTAINER_CLASS])) {
         throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, folder data not available: 0x%X", Utils::PrintAsString($folder->serverid), $folder->parentid, $displayname, mapi_last_hresult()), SYNC_FSSTATUS_SERVERERROR);
     }
     // get the real parent source key from mapi
     if ($parent == "0") {
         $parentprops = mapi_getprops($this->store, array(PR_IPM_SUBTREE_ENTRYID));
         $parentfentryid = $parentprops[PR_IPM_SUBTREE_ENTRYID];
         $mapifolder = mapi_msgstore_openentry($this->store, $parentfentryid);
         $rootfolderprops = mapi_getprops($mapifolder, array(PR_SOURCE_KEY));
         $parent = bin2hex($rootfolderprops[PR_SOURCE_KEY]);
         ZLog::Write(LOGLEVEL_DEBUG, sprintf("ImportChangesICS->ImportFolderChange(): resolved AS parent '0' to sourcekey '%s'", $parent));
     }
     // a changed parent id means that the folder should be moved
     if (bin2hex($props[PR_PARENT_SOURCE_KEY]) !== $parent) {
         $sourceparentfentryid = mapi_msgstore_entryidfromsourcekey($this->store, $props[PR_PARENT_SOURCE_KEY]);
         if (!$sourceparentfentryid) {
             throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, unable to open parent source folder (no entry id): 0x%X", Utils::PrintAsString($folder->serverid), $folder->parentid, $displayname, mapi_last_hresult()), SYNC_FSSTATUS_PARENTNOTFOUND);
         }
         $sourceparentfolder = mapi_msgstore_openentry($this->store, $sourceparentfentryid);
         if (!$sourceparentfolder) {
             throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, unable to open parent source folder (open entry): 0x%X", Utils::PrintAsString($folder->serverid), $folder->parentid, $displayname, mapi_last_hresult()), SYNC_FSSTATUS_PARENTNOTFOUND);
         }
         $destparentfentryid = mapi_msgstore_entryidfromsourcekey($this->store, hex2bin($parent));
         if (!$sourceparentfentryid) {
             throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, unable to open destination folder (no entry id): 0x%X", Utils::PrintAsString($folder->serverid), $folder->parentid, $displayname, mapi_last_hresult()), SYNC_FSSTATUS_SERVERERROR);
         }
         $destfolder = mapi_msgstore_openentry($this->store, $destparentfentryid);
         if (!$destfolder) {
             throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, unable to open destination folder (open entry): 0x%X", Utils::PrintAsString($folder->serverid), $folder->parentid, $displayname, mapi_last_hresult()), SYNC_FSSTATUS_SERVERERROR);
         }
         // mapi_folder_copyfolder() fails if a folder with this name already exists -> MAPI_E_COLLISION
         if (!mapi_folder_copyfolder($sourceparentfolder, $entryid, $destfolder, $displayname, FOLDER_MOVE)) {
             throw new StatusException(sprintf("ImportChangesICS->ImportFolderChange('%s','%s','%s'): Error, unable to move folder: 0x%X", Utils::PrintAsString($folder->serverid), $folder->parentid, $displayname, mapi_last_hresult()), SYNC_FSSTATUS_FOLDEREXISTS);
         }
//.........这里部分代码省略.........

 function escape($data)
 {
     debugLog('iCalDir::escape:input:' . $data);
     if (is_array($data)) {
         foreach ($data as $key => $val) {
             $data[$key] = $this->escape($val);
         }
         return $data;
     }
     $data = str_replace("\r\n", "\n", $data);
     $data = str_replace("\r", "\n", $data);
     $data = str_replace(array('\\', ';', ',', "\n"), array('\\\\', '\\;', '\\,', '\\n'), $data);
     debugLog('iCalDir::escape:output:' . u2wi($data));
     return u2wi($data);
 }