content, so we need to fix that:
	$bq = preg_replace_callback('{(\s*
.+?
)}sx', 
								'_DoBlockQuotes_callback2', $bq);

	return "
\n$bq\n
\n\n";
}
function _DoBlockQuotes_callback2($matches) {
	$pre = $matches[1];
	$pre = preg_replace('/^  /m', '', $pre);
	return $pre;
}


function _FormParagraphs($text) {
	global $md_html_blocks;

	# Strip leading and trailing lines:
	$text = preg_replace(array('/\A\n+/', '/\n+\z/'), '', $text);

	$grafs = preg_split('/\n{2,}/', $text, -1, PREG_SPLIT_NO_EMPTY);
	$count = count($grafs);

	foreach ($grafs as $key => $value) {
		if (!isset( $md_html_blocks[$value] )) {
			$value = _RunSpanGamut($value);
			$value = preg_replace('/^([ \t]*)/', '
', $value);
			$value .= "
";
			$grafs[$key] = $value;
		}
	}

	foreach ($grafs as $key => $value) {
		if (isset( $md_html_blocks[$value] )) {
			$grafs[$key] = $md_html_blocks[$value];
		}
	}

	return implode("\n\n", $grafs);
}


function _EncodeAmpsAndAngles($text) {
	$text = preg_replace('/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/', 
						 '&', $text);;

	# Encode naked <'s
	$text = preg_replace('{<(?![a-z/?\$!])}i', '<', $text);

	return $text;
}


function _EncodeBackslashEscapes($text) {
	global $md_escape_table, $md_backslash_escape_table;
	# Must process escaped backslashes first.
	return str_replace(array_keys($md_backslash_escape_table),
					   array_values($md_backslash_escape_table), $text);
}


function _DoAutoLinks($text) {
	$text = preg_replace("!<((https?|ftp):[^'\">\\s]+)>!", 
						 '\1', $text);

	# Email addresses: 
	$text = preg_replace('{
		<
		(
			[-.\w]+
			\@
			[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+
		)
		>
		}exi',
		"_EncodeEmailAddress(_UnescapeSpecialChars(_UnslashQuotes('\\1')))",
		$text);

	return $text;
}


function _EncodeEmailAddress($addr) {
	$addr = "mailto:" . $addr;
	$length = strlen($addr);

	# leave ':' alone (to spot mailto: later)
	$addr = preg_replace_callback('/([^\:])/', 
								  '_EncodeEmailAddress_callback', $addr);

	$addr = "$addr";
	# strip the mailto: from the visible part
	$addr = preg_replace('/">.+?:/', '">', $addr);

	return $addr;
}
function _EncodeEmailAddress_callback($matches) {
	$char = $matches[1];
	$r = rand(0, 100);
	# roughly 10% raw, 45% hex, 45% dec
	# '@' *must* be encoded. I insist.
	if ($r > 90 && $char != '@') return $char;
	if ($r < 45) return '&#x'.dechex(ord($char)).';';
	return '&#'.ord($char).';';
}


function _UnescapeSpecialChars($text) {
	global $md_escape_table;
	return str_replace(array_values($md_escape_table), 
					   array_keys($md_escape_table), $text);
}


if (!function_exists('_TokenizeHTML')) {
	function _TokenizeHTML($str) {
		$index = 0;
		$tokens = array();

		$depth = 6;
		$nested_tags = str_repeat('(?:<[a-z\/!$](?:[^<>]|',$depth)
					   .str_repeat(')*>)', $depth);
		$match = "(?s:)|".  # comment
				 "(?s:<\?.*?\?>)|".         # processing instruction
				 "$nested_tags";            # nested tags

		$parts = preg_split("/($match)/", $str, -1, PREG_SPLIT_DELIM_CAPTURE);

		foreach ($parts as $part) {
			if (++$index % 2 && $part != '') 
				array_push($tokens, array('text', $part));
			else
				array_push($tokens, array('tag', $part));
		}

		return $tokens;
	}
}


function _Outdent($text) {
	global $md_tab_width;
	return preg_replace("/^(\\t|[ ]{1,$md_tab_width})/m", "", $text);
}


function _Detab($text) {
	global $md_tab_width;
	$text = preg_replace(
		"/(.*?)\t/e",
		"'\\1'.str_repeat(' ', $md_tab_width - strlen('\\1') % $md_tab_width)",
		$text);
	return $text;
}


function _UnslashQuotes($text) {
	return str_replace('\"', '"', $text);
}

?>