=== modified file 'markdown.php'
--- markdown.php	2009-08-16 13:50:40 +0000
+++ markdown.php	2008-12-31 06:26:58 +0000
@@ -13,7 +13,7 @@
 
 
 define( 'MARKDOWN_VERSION',  "1.0.1m" ); # Sat 21 Jun 2008
-define( 'MARKDOWNEXTRA_VERSION',  "1.2.2" ); # Sat 21 Jun 2008
+define( 'MARKDOWNEXTRA_VERSION',  "1.2.3" ); # Wed 31 Dec 2008
 
 
 #
@@ -88,9 +88,9 @@
 		remove_filter('the_content',     'wpautop');
         remove_filter('the_content_rss', 'wpautop');
 		remove_filter('the_excerpt',     'wpautop');
-		add_filter('the_content',     'Markdown', 6);
-        add_filter('the_content_rss', 'Markdown', 6);
-		add_filter('get_the_excerpt', 'Markdown', 6);
+		add_filter('the_content',     'mdwp_MarkdownPost', 6);
+        add_filter('the_content_rss', 'mdwp_MarkdownPost', 6);
+		add_filter('get_the_excerpt', 'mdwp_MarkdownPost', 6);
 		add_filter('get_the_excerpt', 'trim', 7);
 		add_filter('the_excerpt',     'mdwp_add_p');
 		add_filter('the_excerpt_rss', 'mdwp_strip_p');
@@ -101,6 +101,21 @@
 		add_filter('get_the_excerpt', 'balanceTags', 9);
 	}
 	
+	# Add a footnote id prefix to posts when inside a loop.
+	function mdwp_MarkdownPost($text) {
+		static $parser;
+		if (!$parser) {
+			$parser_class = MARKDOWN_PARSER_CLASS;
+			$parser = new $parser_class;
+		}
+		if (is_single() || is_page() || is_feed()) {
+			$parser->fn_id_prefix = "";
+		} else {
+			$parser->fn_id_prefix = get_the_ID() . ".";
+		}
+		return $parser->transform($text);
+	}
+	
 	# Comments
 	# - Remove WordPress paragraph generator.
 	# - Remove WordPress auto-link generator.
@@ -1820,7 +1835,7 @@
 							(?!\s)'.$enclosing_tag_re.'
 						)
 						(?:
-							(?=[\s"\'/])		# Allowed characters after tag name.
+							(?=[\s"\'/a-zA-Z0-9])	# Allowed characters after tag name.
 							(?>
 								".*?"		|	# Double quotes (can contain `>`)
 								\'.*?\'   	|	# Single quotes (can contain `>`)
@@ -2032,7 +2047,7 @@
 					</?					# Any opening or closing tag.
 						[\w:$]+			# Tag name.
 						(?:
-							(?=[\s"\'/])		# Allowed characters after tag name.
+							(?=[\s"\'/a-zA-Z0-9])	# Allowed characters after tag name.
 							(?>
 								".*?"		|	# Double quotes (can contain `>`)
 								\'.*?\'   	|	# Single quotes (can contain `>`)