/**
* Return literal length data located at the end of the stream.
*
* @return mixed Null if no literal data found, or an array with these
* keys:
* - binary: (boolean) True if this is a literal8.
* - length: (integer) Length of the literal.
*/
public function getLiteralLength()
{
$this->_stream->end(-1);
if ($this->_stream->peek() === '}') {
$literal_data = $this->_stream->getString($this->_stream->search('{', true) - 1);
$literal_len = substr($literal_data, 2, -1);
if (is_numeric($literal_len)) {
return array('binary' => $literal_data[0] === '~', 'length' => intval($literal_len));
}
}
return null;
}
/**
* Find the location of the end of the header text.
*
* @return array 1st element: Header position, 2nd element: Length of
* trailing EOL.
*/
protected function _findHeader()
{
$i = 0;
while (!$this->_stream->eof()) {
$data = $this->_stream->substring(0, 8192);
$hdr_pos = strpos($data, "\r\n\r\n");
if ($hdr_pos !== false) {
return array($hdr_pos + $i * 8192, 4);
}
$hdr_pos = strpos($data, "\n\n");
if ($hdr_pos !== false) {
return array($hdr_pos + $i * 8192, 2);
}
$i++;
}
$this->_stream->end();
return array($this->_stream->pos(), 0);
}
/**
* Flush the remaining entries left in the iterator.
*
* @param boolean $return If true, return entries. Only returns entries
* on the current level.
* @param boolean $sublevel Only flush items in current sublevel?
*
* @return array The entries if $return is true.
*/
public function flushIterator($return = true, $sublevel = true)
{
$out = array();
if ($return) {
$this->_nextModify = array('level' => $sublevel ? $this->_level : 0, 'out' => array());
$this->next();
$out = $this->_nextModify['out'];
$this->_nextModify = array();
} elseif ($sublevel && $this->_level) {
$this->_nextModify = array('level' => $this->_level);
$this->next();
$this->_nextModify = array();
} else {
$this->_stream->end();
$this->_stream->getChar();
$this->_current = $this->_key = $this->_level = false;
}
return $out;
}
