1.0.2b7 misrenders nested divs with attributes

[Matt Kraai]

Howdy,

Joey Hess reported that Markdown 1.0.2b7 does not render the following
correctly:

<div class="inlinepage">
<div class="toggleableend">
foo
</div>
</div>

It renders it as follows:

<div class="inlinepage">
<div class="toggleableend">
foo
</div>

<p></div></p>

The problem is that it uses a backreference in the expression that it
passes to gen_extract_tagged, which is broken when Text::Balanced
wraps it in parentheses.  The attached patch fixes it.

-- 
Matt
-------------- next part --------------
--- Markdown.pl.orig	2006-08-29 19:11:53.000000000 -0700
+++ Markdown.pl	2007-05-02 00:28:53.000000000 -0700
@@ -333,9 +336,11 @@
 											# before each attribute name.
 							[\w.:_-]+		# Attribute name
 							\s*=\s*
-							(["'])			# Attribute quoter
-							.+?				# Attribute value
-							\1				# Closing quoter
+							(?:
+								".+?"		# "Attribute value"
+							 |
+								'.+?'		# 'Attribute value'
+							)
 						)*				# Zero or more
 					}x;