+function parseUidList($aData,$sCommand) {
+ $aUid = array();
+ if (isset($aData) && count($aData)) {
+ for ($i=0,$iCnt=count($aData);$i<$iCnt;++$i) {
+ if (preg_match("/^\* $sCommand (.+)$/", $aData[$i], $aMatch)) {
+ $aUid += preg_split("/ /", trim($aMatch[1]));
+ }
+ }
+ }
+ return array_unique($aUid);
+}
+
+/**
+ * Retrieves an array with a sorted uid list. Sorting is done by SquirrelMail
+ *
+ * @param resource $imap_stream IMAP socket connection
+ * @param string $sSortField Field to sort on
+ * @param bool $reverse Reverse order search
+ * @param array $aUid limit the search to the provided array with uid's default sqimap_get_small_headers uses 1:*
+ * @return array $aUid sorted uid list
+ */
+function get_squirrel_sort ($imap_stream, $sSortField, $reverse = false, $aUid = NULL) {
+ if ($sSortField != 'RFC822.SIZE' && $sSortField != 'INTERNALDATE') {
+ $msgs = sqimap_get_small_header_list($imap_stream, $aUid,
+ array($sSortField), array());
+ } else {
+ $msgs = sqimap_get_small_header_list($imap_stream, $aUid,
+ array(), array($sSortField));
+ }
+ $aUid = array();
+ $walk = false;
+ switch ($sSortField) {
+ // natcasesort section
+ case 'FROM':
+ case 'TO':
+ case 'CC':
+ if(!$walk) {
+ array_walk($msgs, create_function('&$v,&$k,$f',
+ '$v[$f] = (isset($v[$f])) ? $v[$f] : "";
+ $addr = reset(parseRFC822Address($v[$f],1));
+ $sPersonal = (isset($addr[SQM_ADDR_PERSONAL]) && $addr[SQM_ADDR_PERSONAL]) ?
+ $addr[SQM_ADDR_PERSONAL] : "";
+ $sEmail = ($addr[SQM_ADDR_HOST]) ?
+ $addr[SQM_ADDR_HOST] . "@".$addr[SQM_ADDR_HOST] :
+ $addr[SQM_ADDR_HOST];
+ $v[$f] = ($sPersonal) ? decodeHeader($sPersonal):$sEmail;'),$sSortField);
+ $walk = true;
+ }
+ // nobreak
+ case 'SUBJECT':
+ if(!$walk) {
+ array_walk($msgs, create_function('&$v,&$k,$f',
+ '$v[$f] = (isset($v[$f])) ? $v[$f] : "";
+ $v[$f] = strtolower(decodeHeader(trim($v[$f])));
+ $v[$f] = (preg_match("/^(vedr|sv|re|aw|\[\w\]):\s*(.*)$/si", $v[$f], $matches)) ?
+ $matches[2] : $v[$f];'),$sSortField);
+ $walk = true;
+ }
+ foreach ($msgs as $item) {
+ $aUid[$item['UID']] = $item[$sSortField];
+ }
+ natcasesort($aUid);
+ $aUid = array_keys($aUid);
+ if ($reverse) {
+ $aUid = array_reverse($aUid);
+ }
+ break;
+ // \natcasesort section
+ // sort_numeric section
+ case 'DATE':
+ case 'INTERNALDATE':
+ if(!$walk) {
+ array_walk($msgs, create_function('&$v,$k,$f',
+ '$v[$f] = (isset($v[$f])) ? $v[$f] : "";
+ $v[$f] = getTimeStamp(explode(" ",$v[$f]));'),$sSortField);
+ $walk = true;
+ }
+ // nobreak;
+ case 'RFC822.SIZE':
+ if(!$walk) {
+ // redefine $sSortField to maintain the same namespace between
+ // server-side sorting and squirrelmail sorting
+ $sSortField = 'SIZE';
+ }
+ foreach ($msgs as $item) {
+ $aUid[$item['UID']] = (isset($item[$sSortField])) ? $item[$sSortField] : 0;
+ }
+ if ($reverse) {
+ arsort($aUid,SORT_NUMERIC);
+ } else {
+ asort($aUid, SORT_NUMERIC);
+ }
+ $aUid = array_keys($aUid);
+ break;
+ // \sort_numeric section
+ case 'UID':
+ $aUid = array_reverse($msgs);
+ break;
+ }
+ return $aUid;
+}
+
+/**
+ * Returns an indent array for printMessageinfo()
+ * This represents the amount of indent needed (value),
+ * for this message number (key)
+ */
+
+/*
+ * Notes for future work:
+ * indent_array should contain: indent_level, parent and flags,
+ * sibling notes ..
+ * To achieve that we need to define the following flags:
+ * 0: hasnochildren
+ * 1: haschildren
+ * 2: is first
+ * 4: is last
+ * a node has sibling nodes if it's not the last node
+ * a node has no sibling nodes if it's the last node
+ * By using binary comparations we can store the flag in one var
+ *
+ * example:
+ * -1 par = 0, level = 0, flag = 1 + 2 + 4 = 7 (haschildren, isfirst, islast)
+ * \-2 par = 1, level = 1, flag = 0 + 2 = 2 (hasnochildren, isfirst)
+ * |-3 par = 1, level = 1, flag = 1 + 4 = 5 (haschildren, islast)
+ * \-4 par = 3, level = 2, flag = 1 + 2 + 4 = 7 (haschildren, isfirst, islast)
+ * \-5 par = 4, level = 3, flag = 0 + 2 + 4 = 6 (hasnochildren, isfirst, islast)
+ */
+function get_parent_level ($thread_new) {
+ $parent = '';
+ $child = '';
+ $cutoff = 0;