CXMLFileStream::findNext

public function findNext()
{
	$cs = $this->fileCharset;

	if ($this->fileHandler === null)
		return false;

	$this->eof = false;
	while (($xmlChunk = $this->getXmlChunk()) !== false)
	{
		$origChunk = $xmlChunk;
		if ($cs)
		{
			$xmlChunk = Encoding::convertEncoding($origChunk, $cs, LANG_CHARSET);
		}

		if ($xmlChunk[0] == "/")
		{
			$this->endElement();
			return true;
		}
		elseif ($xmlChunk[0] == "!" || $xmlChunk[0] == "?")
		{
			if (mb_substr($xmlChunk, 0, 4) === "?xml")
			{
				if (preg_match('#encodings*=s*"(.*?)"#i', $xmlChunk, $arMatch))
				{
					$this->fileCharset = $arMatch[1];
					if (mb_strtoupper($this->fileCharset) === mb_strtoupper(LANG_CHARSET))
					{
						$this->fileCharset = false;
					}
					$cs = $this->fileCharset;
				}
			}
		}
		else
		{
			$this->startElement($xmlChunk, $origChunk);
			//check for self-closing tag
			$p = mb_strpos($xmlChunk, ">");
			if (($p !== false) && (mb_substr($xmlChunk, $p - 1, 1) == "/"))
			{
				$this->endElement();
				return true;
			}
		}
	}
	$this->eof = true;

	return false;
}