inline links should work with images

Parsedown.php

@@ -558,19 +558,19 @@ class Parsedown
 		
 		# Inline Link / Image 
 		
-		if (strpos($text, '](') !== FALSE and preg_match_all('/(!?)\[(.*?)\]\((.*?)\)/', $text, $matches, PREG_SET_ORDER)) # inline 
+		if (strpos($text, '](') !== FALSE and preg_match_all('/(!?)(\[((?:[^][]+|(?2))*)\])\((.*?)\)/', $text, $matches, PREG_SET_ORDER)) # inline 
 		{
 			foreach ($matches as $matches)
 			{
 				if ($matches[1]) # image 
 				{
-					$element = '<img alt="'.$matches[2].'" src="'.$matches[3].'">';
+					$element = '<img alt="'.$matches[3].'" src="'.$matches[4].'">';
 				}
 				else 
 				{
-					$element_text = $this->parse_inline_elements($matches[2]);
+					$element_text = $this->parse_inline_elements($matches[3]);
 					
-					$element = '<a href="'.$matches[3].'">'.$element_text.'</a>';
+					$element = '<a href="'.$matches[4].'">'.$element_text.'</a>';
 				}
 				
 				$element_text = $this->parse_inline_elements($matches[1]);

tests/data/inline_link.html

+<p>Here's a <a href="http://parsedown.org">link</a>.</p>
+<p>Here's an image link: <a href="http://daringfireball.net/projects/markdown/"><img alt="MD Logo" src="http://parsedown.org/md.png"></a>.</p>
\ No newline at end of file

tests/data/inline_link.md

+Here's a [link](http://parsedown.org).
+
+Here's an image link: [![MD Logo](http://parsedown.org/md.png)](http://daringfireball.net/projects/markdown/).
\ No newline at end of file