From: root <root@zebra411.server4you.de>
Date: Sun, 19 Feb 2012 21:47:32 +0000 (+0100)
Subject: New version of markdown. Playing with stylesheet. Testing line breaks.
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=b6d7777226517dc22745bc3d78b827b0175bcb16;p=friendica.git

New version of markdown. Playing with stylesheet. Testing line breaks.
---

diff --git a/include/bb2diaspora.php b/include/bb2diaspora.php
index 9acd1e0665..6f0ab3d28f 100755
--- a/include/bb2diaspora.php
+++ b/include/bb2diaspora.php
@@ -8,7 +8,7 @@ require_once('include/html2bbcode.php');
 
 // we don't want to support a bbcode specific markdown interpreter
 // and the markdown library we have is pretty good, but provides HTML output.
-// So we'll use that to convert to HTML, then convert the HTML back to bbcode, 
+// So we'll use that to convert to HTML, then convert the HTML back to bbcode,
 // and then clean up a few Diaspora specific constructs.
 
 function diaspora2bb($s) {
@@ -35,17 +35,16 @@ function diaspora2bb($s) {
 
 	$s = str_replace('&#35;','#',$s);
 
-	// Again: too many new lines
-	//$s = str_replace("\n",'<br />',$s);
+	$s = str_replace("\n",'<br />',$s);
 
 	$s = html2bbcode($s);
 //	$s = str_replace('&#42;','*',$s);
 
 
-	$s = preg_replace("/\[url\=?(.*?)\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/url\]/ism",'[youtube]$2[/youtube]',$s); 
-	$s = preg_replace("/\[url\=https?:\/\/www.youtube.com\/watch\?v\=(.*?)\].*?\[\/url\]/ism",'[youtube]$1[/youtube]',$s); 
-	$s = preg_replace("/\[url\=?(.*?)\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/url\]/ism",'[vimeo]$2[/vimeo]',$s); 
-	$s = preg_replace("/\[url\=https?:\/\/vimeo.com\/([0-9]+)\](.*?)\[\/url\]/ism",'[vimeo]$1[/vimeo]',$s); 
+	$s = preg_replace("/\[url\=?(.*?)\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/url\]/ism",'[youtube]$2[/youtube]',$s);
+	$s = preg_replace("/\[url\=https?:\/\/www.youtube.com\/watch\?v\=(.*?)\].*?\[\/url\]/ism",'[youtube]$1[/youtube]',$s);
+	$s = preg_replace("/\[url\=?(.*?)\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/url\]/ism",'[vimeo]$2[/vimeo]',$s);
+	$s = preg_replace("/\[url\=https?:\/\/vimeo.com\/([0-9]+)\](.*?)\[\/url\]/ism",'[vimeo]$1[/vimeo]',$s);
 	$s = preg_replace("/([^\]\=]|^)(https?\:\/\/)(vimeo|youtu|www\.youtube|soundcloud)([a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1[url]$2$3$4[/url]',$s);
 	// remove duplicate adjacent code tags
 	$s = preg_replace("/(\[code\])+(.*?)(\[\/code\])+/ism","[code]$2[/code]", $s);
diff --git a/library/markdown.php b/library/markdown.php
old mode 100755
new mode 100644
index 343153186a..f548fc26c3
--- a/library/markdown.php
+++ b/library/markdown.php
@@ -3,17 +3,17 @@
 # Markdown Extra  -  A text-to-HTML conversion tool for web writers
 #
 # PHP Markdown & Extra
-# Copyright (c) 2004-2008 Michel Fortin
-# <http://www.michelf.com/projects/php-markdown/>
+# Copyright (c) 2004-2012 Michel Fortin  
+# <http://michelf.com/projects/php-markdown/>
 #
 # Original Markdown
-# Copyright (c) 2004-2006 John Gruber
+# Copyright (c) 2004-2006 John Gruber  
 # <http://daringfireball.net/projects/markdown/>
 #
 
 
-define( 'MARKDOWN_VERSION',  "1.0.1m" ); # Sat 21 Jun 2008
-define( 'MARKDOWNEXTRA_VERSION',  "1.2.3" ); # Wed 31 Dec 2008
+define( 'MARKDOWN_VERSION',  "1.0.1o" ); # Sun 8 Jan 2012
+define( 'MARKDOWNEXTRA_VERSION',  "1.2.5" ); # Sun 8 Jan 2012
 
 
 #
@@ -34,17 +34,6 @@ define( 'MARKDOWNEXTRA_VERSION',  "1.2.3" ); # Wed 31 Dec 2008
 @define( 'MARKDOWN_FN_LINK_CLASS',         "" );
 @define( 'MARKDOWN_FN_BACKLINK_CLASS',     "" );
 
-# Enables special handling for links pointing outside of the current domain.
-@define( 'MARKDOWN_EL_ENABLE',          true);   # Use this feature at all?
-@define( 'MARKDOWN_EL_LOCAL_DOMAIN',    null);   # Leave as null to autodetect
-@define( 'MARKDOWN_EL_NEW_WINDOW',      true);   # Open link in a new browser?
-@define( 'MARKDOWN_EL_CSS_CLASS', 'external');   # Leave as null for no class
-
-# Enables header auto-self-linking.
-@define( 'MARKDOWN_HA_ENABLE',             true );   # Use this feature at all?
-@define( 'MARKDOWN_HA_CLASS', 'hidden-selflink' );   # Leave as null for no class
-@define( 'MARKDOWN_HA_TEXT',           '&larr;' );   # The text to use as the link
-
 
 #
 # WordPress settings:
@@ -80,17 +69,17 @@ function Markdown($text) {
 
 /*
 Plugin Name: Markdown Extra
-Plugin URI: http://www.michelf.com/projects/php-markdown/
-Description: <a href="http://daringfireball.net/projects/markdown/syntax">Markdown syntax</a> allows you to write using an easy-to-read, easy-to-write plain text format. Based on the original Perl version by <a href="http://daringfireball.net/">John Gruber</a>. <a href="http://www.michelf.com/projects/php-markdown/">More...</a>
-Version: 1.2.2
+Plugin URI: http://michelf.com/projects/php-markdown/
+Description: <a href="http://daringfireball.net/projects/markdown/syntax">Markdown syntax</a> allows you to write using an easy-to-read, easy-to-write plain text format. Based on the original Perl version by <a href="http://daringfireball.net/">John Gruber</a>. <a href="http://michelf.com/projects/php-markdown/">More...</a>
+Version: 1.2.5
 Author: Michel Fortin
-Author URI: http://www.michelf.com/
+Author URI: http://michelf.com/
 */
 
 if (isset($wp_version)) {
 	# More details about how it works here:
-	# <http://www.michelf.com/weblog/2005/wordpress-text-flow-vs-markdown/>
-
+	# <http://michelf.com/weblog/2005/wordpress-text-flow-vs-markdown/>
+	
 	# Post content and excerpts
 	# - Remove WordPress paragraph generator.
 	# - Run Markdown on excerpt, then remove all tags.
@@ -105,13 +94,13 @@ if (isset($wp_version)) {
 		add_filter('get_the_excerpt', 'trim', 7);
 		add_filter('the_excerpt',     'mdwp_add_p');
 		add_filter('the_excerpt_rss', 'mdwp_strip_p');
-
+		
 		remove_filter('content_save_pre',  'balanceTags', 50);
 		remove_filter('excerpt_save_pre',  'balanceTags', 50);
 		add_filter('the_content',  	  'balanceTags', 50);
 		add_filter('get_the_excerpt', 'balanceTags', 9);
 	}
-
+	
 	# Add a footnote id prefix to posts when inside a loop.
 	function mdwp_MarkdownPost($text) {
 		static $parser;
@@ -126,7 +115,7 @@ if (isset($wp_version)) {
 		}
 		return $parser->transform($text);
 	}
-
+	
 	# Comments
 	# - Remove WordPress paragraph generator.
 	# - Remove WordPress auto-link generator.
@@ -141,7 +130,7 @@ if (isset($wp_version)) {
 		add_filter('get_comment_text',    'Markdown', 6);
 		add_filter('get_comment_excerpt', 'Markdown', 6);
 		add_filter('get_comment_excerpt', 'mdwp_strip_p', 7);
-
+	
 		global $mdwp_hidden_tags, $mdwp_placeholders;
 		$mdwp_hidden_tags = explode(' ',
 			'<p> </p> <pre> </pre> <ol> </ol> <ul> </ul> <li> </li>');
@@ -149,7 +138,7 @@ if (isset($wp_version)) {
 			'pEj07ZbbBZ U1kqgh4w4p pre2zmeN6K QTi31t9pre ol0MP1jzJR '.
 			'ML5IjmbRol ulANi1NsGY J7zRLJqPul liA8ctl16T K9nhooUHli'));
 	}
-
+	
 	function mdwp_add_p($text) {
 		if (!preg_match('{^$|^<(p|ul|ol|dl|pre|blockquote)>}i', $text)) {
 			$text = '<p>'.$text.'</p>';
@@ -157,7 +146,7 @@ if (isset($wp_version)) {
 		}
 		return $text;
 	}
-
+	
 	function mdwp_strip_p($t) { return preg_replace('{</?p>}i', '', $t); }
 
 	function mdwp_hide_tags($text) {
@@ -182,7 +171,7 @@ function identify_modifier_markdown() {
 		'authors' => 'Michel Fortin and John Gruber',
 		'licence' => 'GPL',
 		'version' => MARKDOWNEXTRA_VERSION,
-		'help' => '<a href="http://daringfireball.net/projects/markdown/syntax">Markdown syntax</a> allows you to write using an easy-to-read, easy-to-write plain text format. Based on the original Perl version by <a href="http://daringfireball.net/">John Gruber</a>. <a href="http://www.michelf.com/projects/php-markdown/">More...</a>',
+		'help' => '<a href="http://daringfireball.net/projects/markdown/syntax">Markdown syntax</a> allows you to write using an easy-to-read, easy-to-write plain text format. Based on the original Perl version by <a href="http://daringfireball.net/">John Gruber</a>. <a href="http://michelf.com/projects/php-markdown/">More...</a>',
 		);
 }
 
@@ -229,7 +218,7 @@ class Markdown_Parser {
 	# Needed to insert a maximum bracked depth while converting to PHP.
 	var $nested_brackets_depth = 6;
 	var $nested_brackets_re;
-
+	
 	var $nested_url_parenthesis_depth = 4;
 	var $nested_url_parenthesis_re;
 
@@ -240,11 +229,11 @@ class Markdown_Parser {
 	# Change to ">" for HTML output.
 	var $empty_element_suffix = MARKDOWN_EMPTY_ELEMENT_SUFFIX;
 	var $tab_width = MARKDOWN_TAB_WIDTH;
-
+	
 	# Change to `true` to disallow markup or entities.
 	var $no_markup = false;
 	var $no_entities = false;
-
+	
 	# Predefined urls and titles for reference links and images.
 	var $predef_urls = array();
 	var $predef_titles = array();
@@ -256,17 +245,17 @@ class Markdown_Parser {
 	#
 		$this->_initDetab();
 		$this->prepareItalicsAndBold();
-
-		$this->nested_brackets_re =
+	
+		$this->nested_brackets_re = 
 			str_repeat('(?>[^\[\]]+|\[', $this->nested_brackets_depth).
 			str_repeat('\])*', $this->nested_brackets_depth);
-
-		$this->nested_url_parenthesis_re =
+	
+		$this->nested_url_parenthesis_re = 
 			str_repeat('(?>[^()\s]+|\(', $this->nested_url_parenthesis_depth).
 			str_repeat('(?>\)))*', $this->nested_url_parenthesis_depth);
-
+		
 		$this->escape_chars_re = '['.preg_quote($this->escape_chars).']';
-
+		
 		# Sort document, block, and span gamut in ascendent priority order.
 		asort($this->document_gamut);
 		asort($this->block_gamut);
@@ -278,27 +267,27 @@ class Markdown_Parser {
 	var $urls = array();
 	var $titles = array();
 	var $html_hashes = array();
-
+	
 	# Status flag to avoid invalid nesting.
 	var $in_anchor = false;
-
-
+	
+	
 	function setup() {
 	#
-	# Called before the transformation process starts to setup parser
+	# Called before the transformation process starts to setup parser 
 	# states.
 	#
 		# Clear global hashes.
 		$this->urls = $this->predef_urls;
 		$this->titles = $this->predef_titles;
 		$this->html_hashes = array();
-
+		
 		$in_anchor = false;
 	}
-
+	
 	function teardown() {
 	#
-	# Called after the transformation process to clear any variable
+	# Called after the transformation process to clear any variable 
 	# which may be taking up memory unnecessarly.
 	#
 		$this->urls = array();
@@ -313,7 +302,7 @@ class Markdown_Parser {
 	# and pass it through the document gamut.
 	#
 		$this->setup();
-
+	
 		# Remove UTF-8 BOM and marker character in input, if present.
 		$text = preg_replace('{^\xEF\xBB\xBF|\x1A}', '', $text);
 
@@ -340,16 +329,16 @@ class Markdown_Parser {
 		foreach ($this->document_gamut as $method => $priority) {
 			$text = $this->$method($text);
 		}
-
+		
 		$this->teardown();
 
 		return $text . "\n";
 	}
-
+	
 	var $document_gamut = array(
 		# Strip link definitions, store in hashes.
 		"stripLinkDefinitions" => 20,
-
+		
 		"runBasicBlockGamut"   => 30,
 		);
 
@@ -367,14 +356,18 @@ class Markdown_Parser {
 							  [ ]*
 							  \n?				# maybe *one* newline
 							  [ ]*
-							<?(\S+?)>?			# url = $2
+							(?:
+							  <(.+?)>			# url = $2
+							|
+							  (\S+?)			# url = $3
+							)
 							  [ ]*
 							  \n?				# maybe one newline
 							  [ ]*
 							(?:
 								(?<=\s)			# lookbehind for whitespace
 								["(]
-								(.*?)			# title = $3
+								(.*?)			# title = $4
 								[")]
 								[ ]*
 							)?	# title is optional
@@ -386,8 +379,9 @@ class Markdown_Parser {
 	}
 	function _stripLinkDefinitions_callback($matches) {
 		$link_id = strtolower($matches[1]);
-		$this->urls[$link_id] = $matches[2];
-		$this->titles[$link_id] =& $matches[3];
+		$url = $matches[2] == '' ? $matches[3] : $matches[2];
+		$this->urls[$link_id] = $url;
+		$this->titles[$link_id] =& $matches[4];
 		return ''; # String that will replace the block
 	}
 
@@ -405,14 +399,14 @@ class Markdown_Parser {
 		# hard-coded:
 		#
 		# *  List "a" is made of tags which can be both inline or block-level.
-		#    These will be treated block-level when the start tag is alone on
-		#    its line, otherwise they're not matched here and will be taken as
+		#    These will be treated block-level when the start tag is alone on 
+		#    its line, otherwise they're not matched here and will be taken as 
 		#    inline later.
 		# *  List "b" is made of tags which are always block-level;
 		#
 		$block_tags_a_re = 'ins|del';
 		$block_tags_b_re = 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|'.
-						   'script|noscript|form|fieldset|iframe|math|textarea';
+						   'script|noscript|form|fieldset|iframe|math';
 
 		# Regular expression for the content of a block tag.
 		$nested_tags_level = 4;
@@ -428,7 +422,7 @@ class Markdown_Parser {
 			  |
 				\'[^\']*\'	# text inside single quotes (tolerate ">")
 			  )*
-			)?
+			)?	
 			';
 		$content =
 			str_repeat('
@@ -445,7 +439,7 @@ class Markdown_Parser {
 			str_repeat('
 					  </\2\s*>	# closing nested tag
 					)
-				  |
+				  |				
 					<(?!/\2\s*>	# other tags with a different name
 				  )
 				)*',
@@ -471,9 +465,9 @@ class Markdown_Parser {
 			)
 			(						# save in $1
 
-			  # Match from `\n<tag>` to `</tag>\n`, handling nested tags
+			  # Match from `\n<tag>` to `</tag>\n`, handling nested tags 
 			  # in between.
-
+					
 						[ ]{0,'.$less_than_tab.'}
 						<('.$block_tags_b_re.')# start tag = $2
 						'.$attr.'>			# attributes followed by > and \n
@@ -491,28 +485,28 @@ class Markdown_Parser {
 						</\3>				# the matching end tag
 						[ ]*				# trailing spaces/tabs
 						(?=\n+|\Z)	# followed by a newline or end of document
-
-			| # Special case just for <hr />. It was easier to make a special
+					
+			| # Special case just for <hr />. It was easier to make a special 
 			  # case than to make the other regex more complicated.
-
+			
 						[ ]{0,'.$less_than_tab.'}
 						<(hr)				# start tag = $2
 						'.$attr.'			# attributes
 						/?>					# the matching end tag
 						[ ]*
 						(?=\n{2,}|\Z)		# followed by a blank line or end of document
-
+			
 			| # Special case for standalone HTML comments:
-
+			
 					[ ]{0,'.$less_than_tab.'}
 					(?s:
 						<!-- .*? -->
 					)
 					[ ]*
 					(?=\n{2,}|\Z)		# followed by a blank line or end of document
-
+			
 			| # PHP and ASP-style processor instructions (<? and <%)
-
+			
 					[ ]{0,'.$less_than_tab.'}
 					(?s:
 						<([?%])			# $2
@@ -521,7 +515,7 @@ class Markdown_Parser {
 					)
 					[ ]*
 					(?=\n{2,}|\Z)		# followed by a blank line or end of document
-
+					
 			)
 			)}Sxmi',
 			array(&$this, '_hashHTMLBlocks_callback'),
@@ -534,11 +528,11 @@ class Markdown_Parser {
 		$key  = $this->hashBlock($text);
 		return "\n\n$key\n\n";
 	}
-
-
+	
+	
 	function hashPart($text, $boundary = 'X') {
 	#
-	# Called whenever a tag must be hashed when a function insert an atomic
+	# Called whenever a tag must be hashed when a function insert an atomic 
 	# element in the text stream. Passing $text to through this function gives
 	# a unique text-token which will be reverted back when calling unhash.
 	#
@@ -550,7 +544,7 @@ class Markdown_Parser {
 		# Swap back any tag hash found in $text so we do not have to `unhash`
 		# multiple times at the end.
 		$text = $this->unhash($text);
-
+		
 		# Then hash the block.
 		static $i = 0;
 		$key = "$boundary\x1A" . ++$i . $boundary;
@@ -574,7 +568,7 @@ class Markdown_Parser {
 	#
 		"doHeaders"         => 10,
 		"doHorizontalRules" => 20,
-
+		
 		"doLists"           => 40,
 		"doCodeBlocks"      => 50,
 		"doBlockQuotes"     => 60,
@@ -584,33 +578,33 @@ class Markdown_Parser {
 	#
 	# Run block gamut tranformations.
 	#
-		# We need to escape raw HTML in Markdown source before doing anything
-		# else. This need to be done for each block, and not only at the
+		# We need to escape raw HTML in Markdown source before doing anything 
+		# else. This need to be done for each block, and not only at the 
 		# begining in the Markdown function since hashed blocks can be part of
-		# list items and could have been indented. Indented blocks would have
+		# list items and could have been indented. Indented blocks would have 
 		# been seen as a code block in a previous pass of hashHTMLBlocks.
 		$text = $this->hashHTMLBlocks($text);
-
+		
 		return $this->runBasicBlockGamut($text);
 	}
-
+	
 	function runBasicBlockGamut($text) {
 	#
-	# Run block gamut tranformations, without hashing HTML blocks. This is
+	# Run block gamut tranformations, without hashing HTML blocks. This is 
 	# useful when HTML blocks are known to be already hashed, like in the first
 	# whole-document pass.
 	#
 		foreach ($this->block_gamut as $method => $priority) {
 			$text = $this->$method($text);
 		}
-
+		
 		# Finally form paragraph and restore hashed blocks.
 		$text = $this->formParagraphs($text);
 
 		return $text;
 	}
-
-
+	
+	
 	function doHorizontalRules($text) {
 		# Do Horizontal Rules:
 		return preg_replace(
@@ -624,7 +618,7 @@ class Markdown_Parser {
 				[ ]*		# Tailing spaces
 				$			# End of line.
 			}mx',
-			"\n".$this->hashBlock("<hr$this->empty_element_suffix")."\n",
+			"\n".$this->hashBlock("<hr$this->empty_element_suffix")."\n", 
 			$text);
 	}
 
@@ -642,7 +636,7 @@ class Markdown_Parser {
 		# because ![foo][f] looks like an anchor.
 		"doImages"            =>  10,
 		"doAnchors"           =>  20,
-
+		
 		# Make links out of things like `<http://example.com/>`
 		# Must come after doAnchors, because you can use < and >
 		# delimiters in inline links like [this](<url>).
@@ -663,11 +657,11 @@ class Markdown_Parser {
 
 		return $text;
 	}
-
-
+	
+	
 	function doHardBreaks($text) {
 		# Do hard breaks:
-		return preg_replace_callback('/ {2,}\n/',
+		return preg_replace_callback('/ {2,}\n/', 
 			array(&$this, '_doHardBreaks_callback'), $text);
 	}
 	function _doHardBreaks_callback($matches) {
@@ -681,7 +675,7 @@ class Markdown_Parser {
 	#
 		if ($this->in_anchor) return $text;
 		$this->in_anchor = true;
-
+		
 		#
 		# First, handle reference-style links: [link text] [id]
 		#
@@ -710,37 +704,37 @@ class Markdown_Parser {
 				('.$this->nested_brackets_re.')	# link text = $2
 			  \]
 			  \(			# literal paren
-				[ ]*
+				[ \n]*
 				(?:
-					<(\S*)>	# href = $3
+					<(.+?)>	# href = $3
 				|
 					('.$this->nested_url_parenthesis_re.')	# href = $4
 				)
-				[ ]*
+				[ \n]*
 				(			# $5
 				  ([\'"])	# quote char = $6
 				  (.*?)		# Title = $7
 				  \6		# matching quote
-				  [ ]*	# ignore any spaces/tabs between closing quote and )
+				  [ \n]*	# ignore any spaces/tabs between closing quote and )
 				)?			# title is optional
 			  \)
 			)
 			}xs',
-			array(&$this, '_DoAnchors_inline_callback'), $text);
+			array(&$this, '_doAnchors_inline_callback'), $text);
 
 		#
 		# Last, handle reference-style shortcuts: [link text]
-		# These must come last in case you've also got [link test][1]
-		# or [link test](/foo)
+		# These must come last in case you've also got [link text][1]
+		# or [link text](/foo)
 		#
-//		$text = preg_replace_callback('{
-//			(					# wrap whole match in $1
-//			  \[
-//				([^\[\]]+)		# link text = $2; can\'t contain [ or ]
-//			  \]
-//			)
-//			}xs',
-//			array(&$this, '_doAnchors_reference_callback'), $text);
+		$text = preg_replace_callback('{
+			(					# wrap whole match in $1
+			  \[
+				([^\[\]]+)		# link text = $2; can\'t contain [ or ]
+			  \]
+			)
+			}xs',
+			array(&$this, '_doAnchors_reference_callback'), $text);
 
 		$this->in_anchor = false;
 		return $text;
@@ -754,7 +748,7 @@ class Markdown_Parser {
 			# for shortcut links like [this][] or [this].
 			$link_id = $link_text;
 		}
-
+		
 		# lower-case and turn embedded newlines into spaces
 		$link_id = strtolower($link_id);
 		$link_id = preg_replace('{[ ]?\n}', ' ', $link_id);
@@ -762,14 +756,14 @@ class Markdown_Parser {
 		if (isset($this->urls[$link_id])) {
 			$url = $this->urls[$link_id];
 			$url = $this->encodeAttribute($url);
-
+			
 			$result = "<a href=\"$url\"";
 			if ( isset( $this->titles[$link_id] ) ) {
 				$title = $this->titles[$link_id];
 				$title = $this->encodeAttribute($title);
 				$result .=  " title=\"$title\"";
 			}
-
+		
 			$link_text = $this->runSpanGamut($link_text);
 			$result .= ">$link_text</a>";
 			$result = $this->hashPart($result);
@@ -792,7 +786,7 @@ class Markdown_Parser {
 			$title = $this->encodeAttribute($title);
 			$result .=  " title=\"$title\"";
 		}
-
+		
 		$link_text = $this->runSpanGamut($link_text);
 		$result .= ">$link_text</a>";
 
@@ -821,7 +815,7 @@ class Markdown_Parser {
 			  \]
 
 			)
-			}xs',
+			}xs', 
 			array(&$this, '_doImages_reference_callback'), $text);
 
 		#
@@ -835,18 +829,18 @@ class Markdown_Parser {
 			  \]
 			  \s?			# One optional whitespace character
 			  \(			# literal paren
-				[ ]*
+				[ \n]*
 				(?:
 					<(\S*)>	# src url = $3
 				|
 					('.$this->nested_url_parenthesis_re.')	# src url = $4
 				)
-				[ ]*
+				[ \n]*
 				(			# $5
 				  ([\'"])	# quote char = $6
 				  (.*?)		# title = $7
 				  \6		# matching quote
-				  [ ]*
+				  [ \n]*
 				)?			# title is optional
 			  \)
 			)
@@ -906,7 +900,7 @@ class Markdown_Parser {
 		# Setext-style headers:
 		#	  Header 1
 		#	  ========
-		#
+		#  
 		#	  Header 2
 		#	  --------
 		#
@@ -936,7 +930,7 @@ class Markdown_Parser {
 		# Terrible hack to check we haven't found an empty list item.
 		if ($matches[2] == '-' && preg_match('{^-(?: |$)}', $matches[1]))
 			return $matches[0];
-
+		
 		$level = $matches[2]{0} == '=' ? 1 : 2;
 		$block = "<h$level>".$this->runSpanGamut($matches[1])."</h$level>";
 		return "\n" . $this->hashBlock($block) . "\n\n";
@@ -956,22 +950,25 @@ class Markdown_Parser {
 
 		# Re-usable patterns to match list item bullets and number markers:
 		$marker_ul_re  = '[*+-]';
-		$marker_ol_re  = '\d+[.]';
+		$marker_ol_re  = '\d+[\.]';
 		$marker_any_re = "(?:$marker_ul_re|$marker_ol_re)";
 
-		$markers_relist = array($marker_ul_re, $marker_ol_re);
+		$markers_relist = array(
+			$marker_ul_re => $marker_ol_re,
+			$marker_ol_re => $marker_ul_re,
+			);
 
-		foreach ($markers_relist as $marker_re) {
+		foreach ($markers_relist as $marker_re => $other_marker_re) {
 			# Re-usable pattern to match any entirel ul or ol list:
 			$whole_list_re = '
 				(								# $1 = whole list
 				  (								# $2
-					[ ]{0,'.$less_than_tab.'}
-					('.$marker_re.')			# $3 = first list item marker
+					([ ]{0,'.$less_than_tab.'})	# $3 = number of spaces
+					('.$marker_re.')			# $4 = first list item marker
 					[ ]+
 				  )
 				  (?s:.+?)
-				  (								# $4
+				  (								# $5
 					  \z
 					|
 					  \n{2,}
@@ -980,13 +977,19 @@ class Markdown_Parser {
 						[ ]*
 						'.$marker_re.'[ ]+
 					  )
+					|
+					  (?=						# Lookahead for another kind of list
+					    \n
+						\3						# Must have the same indentation
+						'.$other_marker_re.'[ ]+
+					  )
 				  )
 				)
 			'; // mx
-
+			
 			# We use a different prefix before nested lists than top-level lists.
 			# See extended comment in _ProcessListItems().
-
+		
 			if ($this->list_level) {
 				$text = preg_replace_callback('{
 						^
@@ -1008,17 +1011,17 @@ class Markdown_Parser {
 	function _doLists_callback($matches) {
 		# Re-usable patterns to match list item bullets and number markers:
 		$marker_ul_re  = '[*+-]';
-		$marker_ol_re  = '\d+[.]';
+		$marker_ol_re  = '\d+[\.]';
 		$marker_any_re = "(?:$marker_ul_re|$marker_ol_re)";
-
+		
 		$list = $matches[1];
-		$list_type = preg_match("/$marker_ul_re/", $matches[3]) ? "ul" : "ol";
-
+		$list_type = preg_match("/$marker_ul_re/", $matches[4]) ? "ul" : "ol";
+		
 		$marker_any_re = ( $list_type == "ul" ? $marker_ul_re : $marker_ol_re );
-
+		
 		$list .= "\n";
 		$result = $this->processListItems($list, $marker_any_re);
-
+		
 		$result = $this->hashBlock("<$list_type>\n" . $result . "</$list_type>");
 		return "\n". $result ."\n\n";
 	}
@@ -1050,7 +1053,7 @@ class Markdown_Parser {
 		# without resorting to mind-reading. Perhaps the solution is to
 		# change the syntax rules such that sub-lists must start with a
 		# starting cardinal number; e.g. "1." or "a.".
-
+		
 		$this->list_level++;
 
 		# trim trailing blank lines:
@@ -1078,7 +1081,7 @@ class Markdown_Parser {
 		$marker_space = $matches[3];
 		$tailing_blank_line =& $matches[5];
 
-		if ($leading_line || $tailing_blank_line ||
+		if ($leading_line || $tailing_blank_line || 
 			preg_match('/\n{2,}/', $item))
 		{
 			# Replace marker with the appropriate whitespace indentation
@@ -1138,25 +1141,25 @@ class Markdown_Parser {
 
 
 	var $em_relist = array(
-		''  => '(?:(?<!\*)\*(?!\*)|(?<!_)_(?!_))(?=\S)(?![.,:;]\s)',
-		'*' => '(?<=\S)(?<!\*)\*(?!\*)',
-		'_' => '(?<=\S)(?<!_)_(?!_)',
+		''  => '(?:(?<!\*)\*(?!\*)|(?<!_)_(?!_))(?=\S|$)(?![\.,:;]\s)',
+		'*' => '(?<=\S|^)(?<!\*)\*(?!\*)',
+		'_' => '(?<=\S|^)(?<!_)_(?!_)',
 		);
 	var $strong_relist = array(
-		''   => '(?:(?<!\*)\*\*(?!\*)|(?<!_)__(?!_))(?=\S)(?![.,:;]\s)',
-		'**' => '(?<=\S)(?<!\*)\*\*(?!\*)',
-		'__' => '(?<=\S)(?<!_)__(?!_)',
+		''   => '(?:(?<!\*)\*\*(?!\*)|(?<!_)__(?!_))(?=\S|$)(?![\.,:;]\s)',
+		'**' => '(?<=\S|^)(?<!\*)\*\*(?!\*)',
+		'__' => '(?<=\S|^)(?<!_)__(?!_)',
 		);
 	var $em_strong_relist = array(
-		''    => '(?:(?<!\*)\*\*\*(?!\*)|(?<!_)___(?!_))(?=\S)(?![.,:;]\s)',
-		'***' => '(?<=\S)(?<!\*)\*\*\*(?!\*)',
-		'___' => '(?<=\S)(?<!_)___(?!_)',
+		''    => '(?:(?<!\*)\*\*\*(?!\*)|(?<!_)___(?!_))(?=\S|$)(?![\.,:;]\s)',
+		'***' => '(?<=\S|^)(?<!\*)\*\*\*(?!\*)',
+		'___' => '(?<=\S|^)(?<!_)___(?!_)',
 		);
 	var $em_strong_prepared_relist;
-
+	
 	function prepareItalicsAndBold() {
 	#
-	# Prepare regular expressions for seraching emphasis tokens in any
+	# Prepare regular expressions for searching emphasis tokens in any
 	# context.
 	#
 		foreach ($this->em_relist as $em => $em_re) {
@@ -1168,37 +1171,37 @@ class Markdown_Parser {
 				}
 				$token_relist[] = $em_re;
 				$token_relist[] = $strong_re;
-
+				
 				# Construct master expression from list.
 				$token_re = '{('. implode('|', $token_relist) .')}';
 				$this->em_strong_prepared_relist["$em$strong"] = $token_re;
 			}
 		}
 	}
-
+	
 	function doItalicsAndBold($text) {
 		$token_stack = array('');
 		$text_stack = array('');
 		$em = '';
 		$strong = '';
 		$tree_char_em = false;
-
+		
 		while (1) {
 			#
 			# Get prepared regular expression for seraching emphasis tokens
 			# in current context.
 			#
 			$token_re = $this->em_strong_prepared_relist["$em$strong"];
-
+			
 			#
-			# Each loop iteration seach for the next emphasis token.
+			# Each loop iteration search for the next emphasis token. 
 			# Each token is then passed to handleSpanToken.
 			#
 			$parts = preg_split($token_re, $text, 2, PREG_SPLIT_DELIM_CAPTURE);
 			$text_stack[0] .= $parts[0];
 			$token =& $parts[1];
 			$text =& $parts[2];
-
+			
 			if (empty($token)) {
 				# Reached end of text span: empty stack without emitting.
 				# any more emphasis.
@@ -1208,7 +1211,7 @@ class Markdown_Parser {
 				}
 				break;
 			}
-
+			
 			$token_len = strlen($token);
 			if ($tree_char_em) {
 				# Reached closing marker while inside a three-char emphasis.
@@ -1247,7 +1250,7 @@ class Markdown_Parser {
 						$$tag = ''; # $$tag stands for $em or $strong
 					}
 				} else {
-					# Reached opening three-char emphasis marker. Push on token
+					# Reached opening three-char emphasis marker. Push on token 
 					# stack; will be handled by the special condition above.
 					$em = $token{0};
 					$strong = "$em$em";
@@ -1321,10 +1324,10 @@ class Markdown_Parser {
 		$bq = $this->runBlockGamut($bq);		# recurse
 
 		$bq = preg_replace('/^/m', "  ", $bq);
-		# These leading spaces cause problem with <pre> content,
+		# These leading spaces cause problem with <pre> content, 
 		# so we need to fix that:
-		$bq = preg_replace_callback('{(\s*<pre>.+?</pre>)}sx',
-			array(&$this, '_DoBlockQuotes_callback2'), $bq);
+		$bq = preg_replace_callback('{(\s*<pre>.+?</pre>)}sx', 
+			array(&$this, '_doBlockQuotes_callback2'), $bq);
 
 		return "\n". $this->hashBlock("<blockquote>\n$bq\n</blockquote>")."\n\n";
 	}
@@ -1386,7 +1389,7 @@ class Markdown_Parser {
 //					# We can't call Markdown(), because that resets the hash;
 //					# that initialization code should be pulled into its own sub, though.
 //					$div_content = $this->hashHTMLBlocks($div_content);
-//
+//					
 //					# Run document gamut methods on the content.
 //					foreach ($this->document_gamut as $method => $priority) {
 //						$div_content = $this->$method($div_content);
@@ -1414,11 +1417,11 @@ class Markdown_Parser {
 		$text = str_replace('"', '&quot;', $text);
 		return $text;
 	}
-
-
+	
+	
 	function encodeAmpsAndAngles($text) {
 	#
-	# Smart processing for ampersands and angle brackets that need to
+	# Smart processing for ampersands and angle brackets that need to 
 	# be encoded. Valid character entities are left alone unless the
 	# no-entities mode is set.
 	#
@@ -1427,7 +1430,7 @@ class Markdown_Parser {
 		} else {
 			# Ampersand-encoding based entirely on Nat Irons's Amputator
 			# MT plugin: <http://bumppo.net/projects/amputator/>
-			$text = preg_replace('/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/',
+			$text = preg_replace('/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/', 
 								'&amp;', $text);;
 		}
 		# Encode remaining <'s
@@ -1438,7 +1441,7 @@ class Markdown_Parser {
 
 
 	function doAutoLinks($text) {
-		$text = preg_replace_callback('{<((https?|ftp|dict):[^\'">\s]+)>}i',
+		$text = preg_replace_callback('{<((https?|ftp|dict):[^\'">\s]+)>}i', 
 			array(&$this, '_doAutoLinks_url_callback'), $text);
 
 		# Email addresses: <address@domain.foo>
@@ -1446,9 +1449,17 @@ class Markdown_Parser {
 			<
 			(?:mailto:)?
 			(
-				[-.\w\x80-\xFF]+
+				(?:
+					[-!#$%&\'*+/=?^_`.{|}~\w\x80-\xFF]+
+				|
+					".*?"
+				)
 				\@
-				[-a-z0-9\x80-\xFF]+(\.[-a-z0-9\x80-\xFF]+)*\.[a-z]+
+				(?:
+					[-a-z0-9\x80-\xFF]+(\.[-a-z0-9\x80-\xFF]+)*\.[a-z]+
+				|
+					\[[\d.a-fA-F:]+\]	# IPv4 & IPv6
+				)
 			)
 			>
 			}xi',
@@ -1487,7 +1498,7 @@ class Markdown_Parser {
 		$addr = "mailto:" . $addr;
 		$chars = preg_split('/(?<!^)(?!$)/', $addr);
 		$seed = (int)abs(crc32($addr) / strlen($addr)); # Deterministic seed.
-
+		
 		foreach ($chars as $key => $char) {
 			$ord = ord($char);
 			# Ignore non-ascii chars.
@@ -1500,7 +1511,7 @@ class Markdown_Parser {
 				else              $chars[$key] = '&#'.$ord.';';
 			}
 		}
-
+		
 		$addr = implode('', $chars);
 		$text = implode('', array_slice($chars, 7)); # text without `mailto:`
 		$addr = "<a href=\"$addr\">$text</a>";
@@ -1515,7 +1526,7 @@ class Markdown_Parser {
 	# escaped characters and handling code spans.
 	#
 		$output = '';
-
+		
 		$span_re = '{
 				(
 					\\\\'.$this->escape_chars_re.'
@@ -1540,17 +1551,17 @@ class Markdown_Parser {
 
 		while (1) {
 			#
-			# Each loop iteration seach for either the next tag, the next
-			# openning code span marker, or the next escaped character.
+			# Each loop iteration seach for either the next tag, the next 
+			# openning code span marker, or the next escaped character. 
 			# Each token is then passed to handleSpanToken.
 			#
 			$parts = preg_split($span_re, $str, 2, PREG_SPLIT_DELIM_CAPTURE);
-
+			
 			# Create token from text preceding tag.
 			if ($parts[0] != "") {
 				$output .= $parts[0];
 			}
-
+			
 			# Check if we reach the end.
 			if (isset($parts[1])) {
 				$output .= $this->handleSpanToken($parts[1], $parts[2]);
@@ -1560,14 +1571,14 @@ class Markdown_Parser {
 				break;
 			}
 		}
-
+		
 		return $output;
 	}
-
-
+	
+	
 	function handleSpanToken($token, &$str) {
 	#
-	# Handle $token provided by parseSpan by determining its nature and
+	# Handle $token provided by parseSpan by determining its nature and 
 	# returning the corresponding value that should replace it.
 	#
 		switch ($token{0}) {
@@ -1575,7 +1586,7 @@ class Markdown_Parser {
 				return $this->hashPart("&#". ord($token{1}). ";");
 			case "`":
 				# Search for end marker in remaining text.
-				if (preg_match('/^(.*?[^`])'.preg_quote($token).'(?!`)(.*)$/sm',
+				if (preg_match('/^(.*?[^`])'.preg_quote($token).'(?!`)(.*)$/sm', 
 					$str, $matches))
 				{
 					$str = $matches[2];
@@ -1597,18 +1608,18 @@ class Markdown_Parser {
 	}
 
 
-	# String length function for detab. `_initDetab` will create a function to
+	# String length function for detab. `_initDetab` will create a function to 
 	# hanlde UTF-8 if the default function does not exist.
 	var $utf8_strlen = 'mb_strlen';
-
+	
 	function detab($text) {
 	#
 	# Replace tabs with the appropriate amount of space.
 	#
 		# For each line we separate the line in blocks delemited by
-		# tab characters. Then we reconstruct every line by adding the
+		# tab characters. Then we reconstruct every line by adding the 
 		# appropriate number of space between each blocks.
-
+		
 		$text = preg_replace_callback('/^.*\t.*$/m',
 			array(&$this, '_detab_callback'), $text);
 
@@ -1617,7 +1628,7 @@ class Markdown_Parser {
 	function _detab_callback($matches) {
 		$line = $matches[0];
 		$strlen = $this->utf8_strlen; # strlen function for UTF-8.
-
+		
 		# Split in blocks.
 		$blocks = explode("\t", $line);
 		# Add each blocks to the line.
@@ -1625,7 +1636,7 @@ class Markdown_Parser {
 		unset($blocks[0]); # Do not add first block twice.
 		foreach ($blocks as $block) {
 			# Calculate amount of space, insert spaces, insert block.
-			$amount = $this->tab_width -
+			$amount = $this->tab_width - 
 				$strlen($line, 'UTF-8') % $this->tab_width;
 			$line .= str_repeat(" ", $amount) . $block;
 		}
@@ -1634,13 +1645,13 @@ class Markdown_Parser {
 	function _initDetab() {
 	#
 	# Check for the availability of the function in the `utf8_strlen` property
-	# (initially `mb_strlen`). If the function is not available, create a
+	# (initially `mb_strlen`). If the function is not available, create a 
 	# function that will loosely count the number of UTF-8 characters with a
 	# regular expression.
 	#
 		if (function_exists($this->utf8_strlen)) return;
 		$this->utf8_strlen = create_function('$text', 'return preg_match_all(
-			"/[\\\\x00-\\\\xBF]|[\\\\xC0-\\\\xFF][\\\\x80-\\\\xBF]*/",
+			"/[\\\\x00-\\\\xBF]|[\\\\xC0-\\\\xFF][\\\\x80-\\\\xBF]*/", 
 			$text, $m);');
 	}
 
@@ -1649,7 +1660,7 @@ class Markdown_Parser {
 	#
 	# Swap back in all the tags hashed by _HashHTMLBlocks.
 	#
-		return preg_replace_callback('/(.)\x1A[0-9]+\1/',
+		return preg_replace_callback('/(.)\x1A[0-9]+\1/', 
 			array(&$this, '_unhash_callback'), $text);
 	}
 	function _unhash_callback($matches) {
@@ -1667,24 +1678,15 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 
 	# Prefix for footnote ids.
 	var $fn_id_prefix = "";
-
+	
 	# Optional title attribute for footnote links and backlinks.
 	var $fn_link_title = MARKDOWN_FN_LINK_TITLE;
 	var $fn_backlink_title = MARKDOWN_FN_BACKLINK_TITLE;
-
+	
 	# Optional class attribute for footnote links and backlinks.
 	var $fn_link_class = MARKDOWN_FN_LINK_CLASS;
 	var $fn_backlink_class = MARKDOWN_FN_BACKLINK_CLASS;
-
-	var $el_enable = MARKDOWN_EL_ENABLE;
-	var $el_local_domain = MARKDOWN_EL_LOCAL_DOMAIN;
-	var $el_new_window = MARKDOWN_EL_NEW_WINDOW;
-	var $el_css_class = MARKDOWN_EL_CSS_CLASS;
-
-	var $ha_enable = MARKDOWN_HA_ENABLE;
-	var $ha_class = MARKDOWN_HA_CLASS;
-	var $ha_text = MARKDOWN_HA_TEXT;
-
+	
 	# Predefined abbreviations.
 	var $predef_abbr = array();
 
@@ -1693,15 +1695,11 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 	#
 	# Constructor function. Initialize the parser object.
 	#
-		# Add extra escapable characters before parent constructor
+		# Add extra escapable characters before parent constructor 
 		# initialize the table.
 		$this->escape_chars .= ':|';
-
-		if ($this->el_local_domain === null) {
-			$this->el_local_domain = $_SERVER['SERVER_NAME'];
-		}
-
-		# Insert extra document, block, and span transformations.
+		
+		# Insert extra document, block, and span transformations. 
 		# Parent constructor will do the sorting.
 		$this->document_gamut += array(
 			"doFencedCodeBlocks" => 5,
@@ -1718,33 +1716,33 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 			"doFootnotes"        => 5,
 			"doAbbreviations"    => 70,
 			);
-
+		
 		parent::Markdown_Parser();
 	}
-
-
+	
+	
 	# Extra variables used during extra transformations.
 	var $footnotes = array();
 	var $footnotes_ordered = array();
 	var $abbr_desciptions = array();
 	var $abbr_word_re = '';
-
+	
 	# Give the current footnote number.
 	var $footnote_counter = 1;
-
-
+	
+	
 	function setup() {
 	#
 	# Setting up Extra-specific variables.
 	#
 		parent::setup();
-
+		
 		$this->footnotes = array();
 		$this->footnotes_ordered = array();
 		$this->abbr_desciptions = array();
 		$this->abbr_word_re = '';
 		$this->footnote_counter = 1;
-
+		
 		foreach ($this->predef_abbr as $abbr_word => $abbr_desc) {
 			if ($this->abbr_word_re)
 				$this->abbr_word_re .= '|';
@@ -1752,7 +1750,7 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 			$this->abbr_desciptions[$abbr_word] = trim($abbr_desc);
 		}
 	}
-
+	
 	function teardown() {
 	#
 	# Clearing Extra-specific variables.
@@ -1761,29 +1759,29 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 		$this->footnotes_ordered = array();
 		$this->abbr_desciptions = array();
 		$this->abbr_word_re = '';
-
+		
 		parent::teardown();
 	}
-
-
+	
+	
 	### HTML Block Parser ###
-
+	
 	# Tags that are always treated as block tags:
 	var $block_tags_re = 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|form|fieldset|iframe|hr|legend';
-
+	
 	# Tags treated as block tags only if the opening tag is alone on it's line:
 	var $context_block_tags_re = 'script|noscript|math|ins|del';
-
+	
 	# Tags where markdown="1" default to span mode:
 	var $contain_span_tags_re = 'p|h[1-6]|li|dd|dt|td|th|legend|address';
-
-	# Tags which must not have their contents modified, no matter where
+	
+	# Tags which must not have their contents modified, no matter where 
 	# they appear:
 	var $clean_tags_re = 'script|math';
-
+	
 	# Tags that do not need to be closed.
 	var $auto_close_tags_re = 'hr|img';
-
+	
 
 	function hashHTMLBlocks($text) {
 	#
@@ -1796,7 +1794,7 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 	# hard-coded.
 	#
 	# This works by calling _HashHTMLBlocks_InMarkdown, which then calls
-	# _HashHTMLBlocks_InHTML when it encounter block tags. When the markdown="1"
+	# _HashHTMLBlocks_InHTML when it encounter block tags. When the markdown="1" 
 	# attribute is found whitin a tag, _HashHTMLBlocks_InHTML calls back
 	#  _HashHTMLBlocks_InMarkdown to handle the Markdown syntax within the tag.
 	# These two functions are calling each other. It's recursive!
@@ -1805,17 +1803,17 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 		# Call the HTML-in-Markdown hasher.
 		#
 		list($text, ) = $this->_hashHTMLBlocks_inMarkdown($text);
-
+		
 		return $text;
 	}
-	function _hashHTMLBlocks_inMarkdown($text, $indent = 0,
+	function _hashHTMLBlocks_inMarkdown($text, $indent = 0, 
 										$enclosing_tag_re = '', $span = false)
 	{
 	#
 	# Parse markdown text, calling _HashHTMLBlocks_InHTML for block tags.
 	#
-	# *   $indent is the number of space to be ignored when checking for code
-	#     blocks. This is important because if we don't take the indent into
+	# *   $indent is the number of space to be ignored when checking for code 
+	#     blocks. This is important because if we don't take the indent into 
 	#     account, something like this (which looks right) won't work as expected:
 	#
 	#     <div>
@@ -1827,11 +1825,11 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 	#     If you don't like this, just don't indent the tag on which
 	#     you apply the markdown="1" attribute.
 	#
-	# *   If $enclosing_tag_re is not empty, stops at the first unmatched closing
+	# *   If $enclosing_tag_re is not empty, stops at the first unmatched closing 
 	#     tag with that name. Nested tags supported.
 	#
-	# *   If $span is true, text inside must treated as span. So any double
-	#     newline will be replaced by a single newline so that it does not create
+	# *   If $span is true, text inside must treated as span. So any double 
+	#     newline will be replaced by a single newline so that it does not create 
 	#     paragraphs.
 	#
 	# Returns an array of that form: ( processed text , remaining text )
@@ -1840,13 +1838,13 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 
 		# Regex to check for the presense of newlines around a block tag.
 		$newline_before_re = '/(?:^\n?|\n\n)*$/';
-		$newline_after_re =
+		$newline_after_re = 
 			'{
 				^						# Start of text following the tag.
 				(?>[ ]*<!--.*?-->)?		# Optional comment.
 				[ ]*\n					# Must be followed by newline.
 			}xs';
-
+		
 		# Regex to match any tag.
 		$block_tag_re =
 			'{
@@ -1879,7 +1877,7 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 				'. ( !$span ? ' # If not in span.
 				|
 					# Indented code block
-					(?> ^[ ]*\n? | \n[ ]*\n )
+					(?: ^[ ]*\n | ^ | \n[ ]*\n )
 					[ ]{'.($indent+4).'}[^\n]* \n
 					(?>
 						(?: [ ]{'.($indent+4).'}[^\n]* | [ ]* ) \n
@@ -1887,12 +1885,12 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 				|
 					# Fenced code block marker
 					(?> ^ | \n )
-					[ ]{'.($indent).'}~~~+[ ]*\n
+					[ ]{0,'.($indent).'}~~~+[ ]*\n
 				' : '' ). ' # End (if not is span).
 				)
 			}xs';
 
-
+		
 		$depth = 0;		# Current depth inside the tag tree.
 		$parsed = "";	# Parsed text that will be returned.
 
@@ -1904,32 +1902,32 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 			#
 			# Split the text using the first $tag_match pattern found.
 			# Text before  pattern will be first in the array, text after
-			# pattern will be at the end, and between will be any catches made
+			# pattern will be at the end, and between will be any catches made 
 			# by the pattern.
 			#
-			$parts = preg_split($block_tag_re, $text, 2,
+			$parts = preg_split($block_tag_re, $text, 2, 
 								PREG_SPLIT_DELIM_CAPTURE);
-
-			# If in Markdown span mode, add a empty-string span-level hash
+			
+			# If in Markdown span mode, add a empty-string span-level hash 
 			# after each newline to prevent triggering any block element.
 			if ($span) {
 				$void = $this->hashPart("", ':');
 				$newline = "$void\n";
 				$parts[0] = $void . str_replace("\n", $newline, $parts[0]) . $void;
 			}
-
+			
 			$parsed .= $parts[0]; # Text before current tag.
-
+			
 			# If end of $text has been reached. Stop loop.
 			if (count($parts) < 3) {
 				$text = "";
 				break;
 			}
-
+			
 			$tag  = $parts[1]; # Tag to handle.
 			$text = $parts[2]; # Remaining text after current tag.
 			$tag_re = preg_quote($tag); # For use in a regular expression.
-
+			
 			#
 			# Check for: Code span marker
 			#
@@ -1949,33 +1947,34 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 				}
 			}
 			#
-			# Check for: Indented code block or fenced code block marker.
+			# Check for: Fenced code block marker.
 			#
-			else if ($tag{0} == "\n" || $tag{0} == "~") {
-				if ($tag{1} == "\n" || $tag{1} == " ") {
-					# Indented code block: pass it unchanged, will be handled
-					# later.
-					$parsed .= $tag;
+			else if (preg_match('{^\n?[ ]{0,'.($indent+3).'}~}', $tag)) {
+				# Fenced code block marker: find matching end marker.
+				$tag_re = preg_quote(trim($tag));
+				if (preg_match('{^(?>.*\n)+?[ ]{0,'.($indent).'}'.$tag_re.'[ ]*\n}', $text, 
+					$matches)) 
+				{
+					# End marker found: pass text unchanged until marker.
+					$parsed .= $tag . $matches[0];
+					$text = substr($text, strlen($matches[0]));
 				}
 				else {
-					# Fenced code block marker: find matching end marker.
-					$tag_re = preg_quote(trim($tag));
-					if (preg_match('{^(?>.*\n)+?'.$tag_re.' *\n}', $text,
-						$matches))
-					{
-						# End marker found: pass text unchanged until marker.
-						$parsed .= $tag . $matches[0];
-						$text = substr($text, strlen($matches[0]));
-					}
-					else {
-						# No end marker: just skip it.
-						$parsed .= $tag;
-					}
+					# No end marker: just skip it.
+					$parsed .= $tag;
 				}
 			}
 			#
+			# Check for: Indented code block.
+			#
+			else if ($tag{0} == "\n" || $tag{0} == " ") {
+				# Indented code block: pass it unchanged, will be handled 
+				# later.
+				$parsed .= $tag;
+			}
+			#
 			# Check for: Opening Block level tag or
-			#            Opening Context Block tag (like ins and del)
+			#            Opening Context Block tag (like ins and del) 
 			#               used as a block tag (tag is alone on it's line).
 			#
 			else if (preg_match('{^<(?:'.$this->block_tags_re.')\b}', $tag) ||
@@ -1985,9 +1984,9 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 				)
 			{
 				# Need to parse tag and following text using the HTML parser.
-				list($block_text, $text) =
+				list($block_text, $text) = 
 					$this->_hashHTMLBlocks_inHTML($tag . $text, "hashBlock", true);
-
+				
 				# Make sure it stays outside of any paragraph by adding newlines.
 				$parsed .= "\n\n$block_text\n\n";
 			}
@@ -2000,9 +1999,9 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 			{
 				# Need to parse tag and following text using the HTML parser.
 				# (don't check for markdown attribute)
-				list($block_text, $text) =
+				list($block_text, $text) = 
 					$this->_hashHTMLBlocks_inHTML($tag . $text, "hashClean", false);
-
+				
 				$parsed .= $block_text;
 			}
 			#
@@ -2026,14 +2025,14 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 					$text = $tag . $text;
 					break;
 				}
-
+				
 				$parsed .= $tag;
 			}
 			else {
 				$parsed .= $tag;
 			}
 		} while ($depth >= 0);
-
+		
 		return array($parsed, $text);
 	}
 	function _hashHTMLBlocks_inHTML($text, $hash_method, $md_attr) {
@@ -2048,7 +2047,7 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 	# Returns an array of that form: ( processed text , remaining text )
 	#
 		if ($text === '') return array('', '');
-
+		
 		# Regex to match `markdown` attribute inside of a tag.
 		$markdown_attr_re = '
 			{
@@ -2056,15 +2055,15 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 				markdown
 				\s*=\s*
 				(?>
-					(["\'])		# $1: quote delimiter
+					(["\'])		# $1: quote delimiter		
 					(.*?)		# $2: attribute value
-					\1			# matching delimiter
+					\1			# matching delimiter	
 				|
 					([^\s>]*)	# $3: unquoted attribute value
 				)
 				()				# $4: make $3 always defined (avoid warnings)
 			}xs';
-
+		
 		# Regex to match any tag.
 		$tag_re = '{
 				(					# $2: Capture hole tag.
@@ -2087,9 +2086,9 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 					<!\[CDATA\[.*?\]\]>	# CData Block
 				)
 			}xs';
-
+		
 		$original_text = $text;		# Save original text in case of faliure.
-
+		
 		$depth		= 0;	# Current depth inside the tag tree.
 		$block_text	= "";	# Temporary text holder for current text.
 		$parsed		= "";	# Parsed text that will be returned.
@@ -2108,25 +2107,25 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 			#
 			# Split the text using the first $tag_match pattern found.
 			# Text before  pattern will be first in the array, text after
-			# pattern will be at the end, and between will be any catches made
+			# pattern will be at the end, and between will be any catches made 
 			# by the pattern.
 			#
 			$parts = preg_split($tag_re, $text, 2, PREG_SPLIT_DELIM_CAPTURE);
-
+			
 			if (count($parts) < 3) {
 				#
 				# End of $text reached with unbalenced tag(s).
 				# In that case, we return original text unchanged and pass the
-				# first character as filtered to prevent an infinite loop in the
+				# first character as filtered to prevent an infinite loop in the 
 				# parent function.
 				#
 				return array($original_text{0}, substr($original_text, 1));
 			}
-
+			
 			$block_text .= $parts[0]; # Text before current tag.
 			$tag         = $parts[1]; # Tag to handle.
 			$text        = $parts[2]; # Remaining text after current tag.
-
+			
 			#
 			# Check for: Auto-close tag (like <hr/>)
 			#			 Comments and Processing Instructions.
@@ -2146,22 +2145,22 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 					if ($tag{1} == '/')						$depth--;
 					else if ($tag{strlen($tag)-2} != '/')	$depth++;
 				}
-
+				
 				#
 				# Check for `markdown="1"` attribute and handle it.
 				#
-				if ($md_attr &&
+				if ($md_attr && 
 					preg_match($markdown_attr_re, $tag, $attr_m) &&
 					preg_match('/^1|block|span$/', $attr_m[2] . $attr_m[3]))
 				{
 					# Remove `markdown` attribute from opening tag.
 					$tag = preg_replace($markdown_attr_re, '', $tag);
-
+					
 					# Check if text inside this tag must be parsed in span mode.
 					$this->mode = $attr_m[2] . $attr_m[3];
 					$span_mode = $this->mode == 'span' || $this->mode != 'block' &&
 						preg_match('{^<(?:'.$this->contain_span_tags_re.')\b}', $tag);
-
+					
 					# Calculate indent before tag.
 					if (preg_match('/(?:^|\n)( *?)(?! ).*?$/', $block_text, $matches)) {
 						$strlen = $this->utf8_strlen;
@@ -2169,44 +2168,44 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 					} else {
 						$indent = 0;
 					}
-
+					
 					# End preceding block with this tag.
 					$block_text .= $tag;
 					$parsed .= $this->$hash_method($block_text);
-
+					
 					# Get enclosing tag name for the ParseMarkdown function.
 					# (This pattern makes $tag_name_re safe without quoting.)
 					preg_match('/^<([\w:$]*)\b/', $tag, $matches);
 					$tag_name_re = $matches[1];
-
+					
 					# Parse the content using the HTML-in-Markdown parser.
 					list ($block_text, $text)
-						= $this->_hashHTMLBlocks_inMarkdown($text, $indent,
+						= $this->_hashHTMLBlocks_inMarkdown($text, $indent, 
 							$tag_name_re, $span_mode);
-
+					
 					# Outdent markdown text.
 					if ($indent > 0) {
-						$block_text = preg_replace("/^[ ]{1,$indent}/m", "",
+						$block_text = preg_replace("/^[ ]{1,$indent}/m", "", 
 													$block_text);
 					}
-
+					
 					# Append tag content to parsed text.
 					if (!$span_mode)	$parsed .= "\n\n$block_text\n\n";
 					else				$parsed .= "$block_text";
-
+					
 					# Start over a new block.
 					$block_text = "";
 				}
 				else $block_text .= $tag;
 			}
-
+			
 		} while ($depth > 0);
-
+		
 		#
 		# Hash last block text that wasn't processed inside the loop.
 		#
 		$parsed .= $this->$hash_method($block_text);
-
+		
 		return array($parsed, $text);
 	}
 
@@ -2214,87 +2213,12 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 	function hashClean($text) {
 	#
 	# Called whenever a tag must be hashed when a function insert a "clean" tag
-	# in $text, it pass through this function and is automaticaly escaped,
+	# in $text, it pass through this function and is automaticaly escaped, 
 	# blocking invalid nested overlap.
 	#
 		return $this->hashPart($text, 'C');
 	}
 
-	function _doAnchors_inline_callback($matches) {
-		// $whole_match	=  $matches[1];
-		$link_text		=  $this->runSpanGamut($matches[2]);
-		$url			=  $matches[3] == '' ? $matches[4] : $matches[3];
-		$title			=& $matches[7];
-
-		$url = $this->encodeAttribute($url);
-
-		$result = "<a href=\"$url\"";
-		if (isset($title)) {
-			$title = $this->encodeAttribute($title);
-			$result .=  " title=\"$title\"";
-		}
-
-		if ($this->el_enable && preg_match('/^https?\:\/\//', $url) && !preg_match('/^https?\:\/\/'.$this->el_local_domain.'/', $url)) {
-			if ($this->el_new_window) {
-				$result .= ' target="_blank"';
-			}
-
-			if ($this->el_css_class) {
-				$result .= ' class="'.$this->el_css_class.'"';
-			}
-		}
-
-		$link_text = $this->runSpanGamut($link_text);
-		$result .= ">$link_text</a>";
-
-		return $this->hashPart($result);
-	}
-
-	function _doAnchors_reference_callback($matches) {
-		$whole_match =  $matches[1];
-		$link_text   =  $matches[2];
-		$link_id     =& $matches[3];
-		$result      =  '';
-
-		if ($link_id == "") {
-			# for shortcut links like [this][] or [this].
-			$link_id = $link_text;
-		}
-
-		# lower-case and turn embedded newlines into spaces
-		$link_id = strtolower($link_id);
-		$link_id = preg_replace('{[ ]?\n}', ' ', $link_id);
-
-		if (isset($this->urls[$link_id])) {
-			$url = $this->urls[$link_id];
-			$url = $this->encodeAttribute($url);
-
-			$result = "<a href=\"$url\"";
-			if ( isset( $this->titles[$link_id] ) ) {
-				$title = $this->titles[$link_id];
-				$title = $this->encodeAttribute($title);
-				$result .=  " title=\"$title\"";
-			}
-
-			if ($this->el_enable && preg_match('/^https?\:\/\//', $url) && !preg_match('/^https?\:\/\/'.$this->el_local_domain.'/', $url)) {
-				if ($this->el_new_window) {
-					$result .= ' target="_blank"';
-				}
-
-				if ($this->el_css_class) {
-					$result .= ' class="'.$this->el_css_class.'"';
-				}
-			}
-
-			$link_text = $this->runSpanGamut($link_text);
-			$result .= ">$link_text</a>";
-			$result = $this->hashPart($result);
-		}
-		else {
-			$result = $whole_match;
-		}
-		return $result;
-	}
 
 	function doHeaders($text) {
 	#
@@ -2303,7 +2227,7 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 		# Setext-style headers:
 		#	  Header 1  {#header1}
 		#	  ========
-		#
+		#  
 		#	  Header 2  {#header2}
 		#	  --------
 		#
@@ -2345,36 +2269,15 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 			return $matches[0];
 		$level = $matches[3]{0} == '=' ? 1 : 2;
 		$attr  = $this->_doHeaders_attr($id =& $matches[2]);
-		$body  = $this->runSpanGamut($matches[1]);
-		$body  = $this->_doHeaders_selflink($id, $body);
-
-		$block = "<h$level$attr>$body</h$level>";
+		$block = "<h$level$attr>".$this->runSpanGamut($matches[1])."</h$level>";
 		return "\n" . $this->hashBlock($block) . "\n\n";
 	}
 	function _doHeaders_callback_atx($matches) {
 		$level = strlen($matches[1]);
 		$attr  = $this->_doHeaders_attr($id =& $matches[3]);
-		$body  = $this->runSpanGamut($matches[2]);
-		$body = $this->_doHeaders_selflink($id, $body);
-
-		$block = "<h$level$attr>$body</h$level>";
+		$block = "<h$level$attr>".$this->runSpanGamut($matches[2])."</h$level>";
 		return "\n" . $this->hashBlock($block) . "\n\n";
 	}
-	function _doHeaders_selflink($id, $body) {
-		if (!empty($id)) {
-			$link = '<a href="#'.$id.'"';
-
-			if ($this->ha_class) {
-				$link .= ' class="'.$this->ha_class.'"';
-			}
-
-			$link .= '>'.$this->ha_text.'</a>';
-
-			$body .= $link;
-		}
-
-		return $body;
-	}
 
 
 	function doTables($text) {
@@ -2396,10 +2299,10 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 				[ ]{0,'.$less_than_tab.'}	# Allowed whitespace.
 				[|]							# Optional leading pipe (present)
 				(.+) \n						# $1: Header row (at least one pipe)
-
+				
 				[ ]{0,'.$less_than_tab.'}	# Allowed whitespace.
 				[|] ([ ]*[-:]+[-| :]*) \n	# $2: Header underline
-
+				
 				(							# $3: Cells
 					(?>
 						[ ]*				# Allowed whitespace.
@@ -2409,7 +2312,7 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 				(?=\n|\Z)					# Stop at final double newline.
 			}xm',
 			array(&$this, '_doTable_leadingPipe_callback'), $text);
-
+		
 		#
 		# Find tables without leading pipe.
 		#
@@ -2423,10 +2326,10 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 				^							# Start of a line
 				[ ]{0,'.$less_than_tab.'}	# Allowed whitespace.
 				(\S.*[|].*) \n				# $1: Header row (at least one pipe)
-
+				
 				[ ]{0,'.$less_than_tab.'}	# Allowed whitespace.
 				([-:]+[ ]*[|][-| :]*) \n	# $2: Header underline
-
+				
 				(							# $3: Cells
 					(?>
 						.* [|] .* \n		# Row content
@@ -2442,10 +2345,10 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 		$head		= $matches[1];
 		$underline	= $matches[2];
 		$content	= $matches[3];
-
+		
 		# Remove leading pipe for each row.
 		$content	= preg_replace('/^ *[|]/m', '', $content);
-
+		
 		return $this->_doTable_callback(array($matches[0], $head, $underline, $content));
 	}
 	function _doTable_callback($matches) {
@@ -2457,7 +2360,7 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 		$head		= preg_replace('/[|] *$/m', '', $head);
 		$underline	= preg_replace('/[|] *$/m', '', $underline);
 		$content	= preg_replace('/[|] *$/m', '', $content);
-
+		
 		# Reading alignement from header underline.
 		$separators	= preg_split('/ *[|] */', $underline);
 		foreach ($separators as $n => $s) {
@@ -2466,13 +2369,13 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 			else if (preg_match('/^ *:-+ *$/', $s))	$attr[$n] = ' align="left"';
 			else									$attr[$n] = '';
 		}
-
-		# Parsing span elements, including code spans, character escapes,
+		
+		# Parsing span elements, including code spans, character escapes, 
 		# and inline HTML tags, so that pipes inside those gets ignored.
 		$head		= $this->parseSpan($head);
 		$headers	= preg_split('/ *[|] */', $head);
 		$col_count	= count($headers);
-
+		
 		# Write column headers.
 		$text = "<table>\n";
 		$text .= "<thead>\n";
@@ -2481,20 +2384,20 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 			$text .= "  <th$attr[$n]>".$this->runSpanGamut(trim($header))."</th>\n";
 		$text .= "</tr>\n";
 		$text .= "</thead>\n";
-
+		
 		# Split content by row.
 		$rows = explode("\n", trim($content, "\n"));
-
+		
 		$text .= "<tbody>\n";
 		foreach ($rows as $row) {
-			# Parsing span elements, including code spans, character escapes,
+			# Parsing span elements, including code spans, character escapes, 
 			# and inline HTML tags, so that pipes inside those gets ignored.
 			$row = $this->parseSpan($row);
-
+			
 			# Split row by cell.
 			$row_cells = preg_split('/ *[|] */', $row, $col_count);
 			$row_cells = array_pad($row_cells, $col_count, '');
-
+			
 			$text .= "<tr>\n";
 			foreach ($row_cells as $n => $cell)
 				$text .= "  <td$attr[$n]>".$this->runSpanGamut(trim($cell))."</td>\n";
@@ -2502,11 +2405,11 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 		}
 		$text .= "</tbody>\n";
 		$text .= "</table>";
-
+		
 		return $this->hashBlock($text) . "\n";
 	}
 
-
+	
 	function doDefLists($text) {
 	#
 	# Form HTML definition lists.
@@ -2552,7 +2455,7 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 	function _doDefLists_callback($matches) {
 		# Re-usable patterns to match list item bullets and number markers:
 		$list = $matches[1];
-
+		
 		# Turn double returns into triple returns, so that we can make a
 		# paragraph for the last item in a list, if necessary:
 		$result = trim($this->processDefListItems($list));
@@ -2567,7 +2470,7 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 	#	into individual term and definition list items.
 	#
 		$less_than_tab = $this->tab_width - 1;
-
+		
 		# trim trailing blank lines:
 		$list_str = preg_replace("/\n{2,}\\z/", "\n", $list_str);
 
@@ -2576,11 +2479,11 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 			(?>\A\n?|\n\n+)					# leading line
 			(								# definition terms = $1
 				[ ]{0,'.$less_than_tab.'}	# leading whitespace
-				(?![:][ ]|[ ])				# negative lookahead for a definition
+				(?![:][ ]|[ ])				# negative lookahead for a definition 
 											#   mark (colon) or more whitespace.
-				(?> \S.* \n)+?				# actual term (not whitespace).
-			)
-			(?=\n?[ ]{0,3}:[ ])				# lookahead for following line feed
+				(?> \S.* \n)+?				# actual term (not whitespace).	
+			)			
+			(?=\n?[ ]{0,3}:[ ])				# lookahead for following line feed 
 											#   with a definition mark.
 			}xm',
 			array(&$this, '_processDefListItems_callback_dt'), $list_str);
@@ -2596,33 +2499,20 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 			(?= \n+ 						# stop at next definition mark,
 				(?:							# next term or end of text
 					[ ]{0,'.$less_than_tab.'} [:][ ]	|
-					<dt | \z
-				)
-			)
+					<dt> | \z
+				)						
+			)					
 			}xm',
 			array(&$this, '_processDefListItems_callback_dd'), $list_str);
 
 		return $list_str;
 	}
 	function _processDefListItems_callback_dt($matches) {
-		$anchor_regexp = '/\{\#([-_:a-zA-Z0-9]+)\}/';
 		$terms = explode("\n", trim($matches[1]));
 		$text = '';
-		$id = array();
-
 		foreach ($terms as $term) {
-			$id = '';
-			if (preg_match($anchor_regexp, $term, $id) > 0) {
-				$term = preg_replace($anchor_regexp, '', $term);
-				$id = ' id="'.trim($id[1]).'"';
-			}
-
-			if (count($id) === 0) {
-				$id = '';
-			}
-
 			$term = $this->runSpanGamut(trim($term));
-			$text .= "\n<dt$id>" . $term . "</dt>";
+			$text .= "\n<dt>" . $term . "</dt>";
 		}
 		return $text . "\n";
 	}
@@ -2655,7 +2545,7 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 	# ~~~
 	#
 		$less_than_tab = $this->tab_width;
-
+		
 		$text = preg_replace_callback('{
 				(?:\n|\A)
 				# 1: Opening marker
@@ -2663,7 +2553,7 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 					~{3,} # Marker: three tilde or more.
 				)
 				[ ]* \n # Whitespace and newline following marker.
-
+				
 				# 2: Content
 				(
 					(?>
@@ -2671,7 +2561,7 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 						.*\n+
 					)+
 				)
-
+				
 				# Closing marker.
 				\1 [ ]* \n
 			}xm',
@@ -2688,7 +2578,7 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 		return "\n\n".$this->hashBlock($codeblock)."\n\n";
 	}
 	function _doFencedCodeBlocks_newlines($matches) {
-		return str_repeat("<br$this->empty_element_suffix",
+		return str_repeat("<br$this->empty_element_suffix", 
 			strlen($matches[0]));
 	}
 
@@ -2698,19 +2588,19 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 	# work in the middle of a word.
 	#
 	var $em_relist = array(
-		''  => '(?:(?<!\*)\*(?!\*)|(?<![a-zA-Z0-9_])_(?!_))(?=\S)(?![.,:;]\s)',
-		'*' => '(?<=\S)(?<!\*)\*(?!\*)',
-		'_' => '(?<=\S)(?<!_)_(?![a-zA-Z0-9_])',
+		''  => '(?:(?<!\*)\*(?!\*)|(?<![a-zA-Z0-9_])_(?!_))(?=\S|$)(?![\.,:;]\s)',
+		'*' => '(?<=\S|^)(?<!\*)\*(?!\*)',
+		'_' => '(?<=\S|^)(?<!_)_(?![a-zA-Z0-9_])',
 		);
 	var $strong_relist = array(
-		''   => '(?:(?<!\*)\*\*(?!\*)|(?<![a-zA-Z0-9_])__(?!_))(?=\S)(?![.,:;]\s)',
-		'**' => '(?<=\S)(?<!\*)\*\*(?!\*)',
-		'__' => '(?<=\S)(?<!_)__(?![a-zA-Z0-9_])',
+		''   => '(?:(?<!\*)\*\*(?!\*)|(?<![a-zA-Z0-9_])__(?!_))(?=\S|$)(?![\.,:;]\s)',
+		'**' => '(?<=\S|^)(?<!\*)\*\*(?!\*)',
+		'__' => '(?<=\S|^)(?<!_)__(?![a-zA-Z0-9_])',
 		);
 	var $em_strong_relist = array(
-		''    => '(?:(?<!\*)\*\*\*(?!\*)|(?<![a-zA-Z0-9_])___(?!_))(?=\S)(?![.,:;]\s)',
-		'***' => '(?<=\S)(?<!\*)\*\*\*(?!\*)',
-		'___' => '(?<=\S)(?<!_)___(?![a-zA-Z0-9_])',
+		''    => '(?:(?<!\*)\*\*\*(?!\*)|(?<![a-zA-Z0-9_])___(?!_))(?=\S|$)(?![\.,:;]\s)',
+		'***' => '(?<=\S|^)(?<!\*)\*\*\*(?!\*)',
+		'___' => '(?<=\S|^)(?<!_)___(?![a-zA-Z0-9_])',
 		);
 
 
@@ -2721,7 +2611,7 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 	#
 		# Strip leading and trailing lines:
 		$text = preg_replace('/\A\n+|\n+\z/', '', $text);
-
+		
 		$grafs = preg_split('/\n{2,}/', $text, -1, PREG_SPLIT_NO_EMPTY);
 
 		#
@@ -2729,29 +2619,29 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 		#
 		foreach ($grafs as $key => $value) {
 			$value = trim($this->runSpanGamut($value));
-
+			
 			# Check if this should be enclosed in a paragraph.
 			# Clean tag hashes & block tag hashes are left alone.
 			$is_p = !preg_match('/^B\x1A[0-9]+B|^C\x1A[0-9]+C$/', $value);
-
+			
 			if ($is_p) {
 				$value = "<p>$value</p>";
 			}
 			$grafs[$key] = $value;
 		}
-
-		# Join grafs in one text, then unhash HTML tags.
+		
+		# Join grafs in one text, then unhash HTML tags. 
 		$text = implode("\n\n", $grafs);
-
+		
 		# Finish by removing any tag hashes still present in $text.
 		$text = $this->unhash($text);
-
+		
 		return $text;
 	}
-
-
+	
+	
 	### Footnotes
-
+	
 	function stripFootnotes($text) {
 	#
 	# Strips link definitions from text, stores the URLs and titles in
@@ -2765,15 +2655,15 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 			  [ ]*
 			  \n?					# maybe *one* newline
 			(						# text = $2 (no blank lines allowed)
-				(?:
+				(?:					
 					.+				# actual text
 				|
-					\n				# newlines but
+					\n				# newlines but 
 					(?!\[\^.+?\]:\s)# negative lookahead for footnote marker.
-					(?!\n+[ ]{0,3}\S)# ensure line is not blank and followed
+					(?!\n+[ ]{0,3}\S)# ensure line is not blank and followed 
 									# by non-indented content
 				)*
-			)
+			)		
 			}xm',
 			array(&$this, '_stripFootnotes_callback'),
 			$text);
@@ -2788,7 +2678,7 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 
 	function doFootnotes($text) {
 	#
-	# Replace footnote references in $text [^id] with a special text-token
+	# Replace footnote references in $text [^id] with a special text-token 
 	# which will be replaced by the actual footnote marker in appendFootnotes.
 	#
 		if (!$this->in_anchor) {
@@ -2797,20 +2687,20 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 		return $text;
 	}
 
-
+	
 	function appendFootnotes($text) {
 	#
 	# Append footnote list to text.
 	#
-		$text = preg_replace_callback('{F\x1Afn:(.*?)\x1A:}',
+		$text = preg_replace_callback('{F\x1Afn:(.*?)\x1A:}', 
 			array(&$this, '_appendFootnotes_callback'), $text);
-
+	
 		if (!empty($this->footnotes_ordered)) {
 			$text .= "\n\n";
 			$text .= "<div class=\"footnotes\">\n";
-			$text .= "<hr". MARKDOWN_EMPTY_ELEMENT_SUFFIX ."\n";
+			$text .= "<hr". $this->empty_element_suffix ."\n";
 			$text .= "<ol>\n\n";
-
+			
 			$attr = " rev=\"footnote\"";
 			if ($this->fn_backlink_class != "") {
 				$class = $this->fn_backlink_class;
@@ -2823,20 +2713,20 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 				$attr .= " title=\"$title\"";
 			}
 			$num = 0;
-
+			
 			while (!empty($this->footnotes_ordered)) {
 				$footnote = reset($this->footnotes_ordered);
 				$note_id = key($this->footnotes_ordered);
 				unset($this->footnotes_ordered[$note_id]);
-
+				
 				$footnote .= "\n"; # Need to append newline before parsing.
-				$footnote = $this->runBlockGamut("$footnote\n");
-				$footnote = preg_replace_callback('{F\x1Afn:(.*?)\x1A:}',
+				$footnote = $this->runBlockGamut("$footnote\n");				
+				$footnote = preg_replace_callback('{F\x1Afn:(.*?)\x1A:}', 
 					array(&$this, '_appendFootnotes_callback'), $footnote);
-
+				
 				$attr = str_replace("%%", ++$num, $attr);
 				$note_id = $this->encodeAttribute($note_id);
-
+				
 				# Add backlink to last paragraph; create new paragraph if needed.
 				$backlink = "<a href=\"#fnref:$note_id\"$attr>&#8617;</a>";
 				if (preg_match('{</p>$}', $footnote)) {
@@ -2844,12 +2734,12 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 				} else {
 					$footnote .= "\n\n<p>$backlink</p>";
 				}
-
+				
 				$text .= "<li id=\"fn:$note_id\">\n";
 				$text .= $footnote . "\n";
 				$text .= "</li>\n\n";
 			}
-
+			
 			$text .= "</ol>\n";
 			$text .= "</div>";
 		}
@@ -2857,14 +2747,14 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 	}
 	function _appendFootnotes_callback($matches) {
 		$node_id = $this->fn_id_prefix . $matches[1];
-
+		
 		# Create footnote marker only if it has a corresponding footnote *and*
 		# the footnote hasn't been used by another marker.
 		if (isset($this->footnotes[$node_id])) {
 			# Transfert footnote content to the ordered list.
 			$this->footnotes_ordered[$node_id] = $this->footnotes[$node_id];
 			unset($this->footnotes[$node_id]);
-
+			
 			$num = $this->footnote_counter++;
 			$attr = " rel=\"footnote\"";
 			if ($this->fn_link_class != "") {
@@ -2877,22 +2767,22 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 				$title = $this->encodeAttribute($title);
 				$attr .= " title=\"$title\"";
 			}
-
+			
 			$attr = str_replace("%%", $num, $attr);
 			$node_id = $this->encodeAttribute($node_id);
-
+			
 			return
 				"<sup id=\"fnref:$node_id\">".
 				"<a href=\"#fn:$node_id\"$attr>$num</a>".
 				"</sup>";
 		}
-
+		
 		return "[^".$matches[1]."]";
 	}
-
-
+		
+	
 	### Abbreviations ###
-
+	
 	function stripAbbreviations($text) {
 	#
 	# Strips abbreviations from text, stores titles in hash references.
@@ -2902,7 +2792,7 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 		# Link defs are in the form: [id]*: url "optional title"
 		$text = preg_replace_callback('{
 			^[ ]{0,'.$less_than_tab.'}\*\[(.+?)\][ ]?:	# abbr_id = $1
-			(.*)					# text = $2 (no blank lines allowed)
+			(.*)					# text = $2 (no blank lines allowed)	
 			}xm',
 			array(&$this, '_stripAbbreviations_callback'),
 			$text);
@@ -2917,20 +2807,20 @@ class MarkdownExtra_Parser extends Markdown_Parser {
 		$this->abbr_desciptions[$abbr_word] = trim($abbr_desc);
 		return ''; # String that will replace the block
 	}
-
-
+	
+	
 	function doAbbreviations($text) {
 	#
 	# Find defined abbreviations in text and wrap them in <abbr> elements.
 	#
 		if ($this->abbr_word_re) {
-			// cannot use the /x modifier because abbr_word_re may
+			// cannot use the /x modifier because abbr_word_re may 
 			// contain significant spaces:
 			$text = preg_replace_callback('{'.
 				'(?<![\w\x1A])'.
 				'(?:'.$this->abbr_word_re.')'.
 				'(?![\w\x1A])'.
-				'}',
+				'}', 
 				array(&$this, '_doAbbreviations_callback'), $text);
 		}
 		return $text;
@@ -2961,9 +2851,9 @@ PHP Markdown Extra
 Description
 -----------
 
-This is a PHP port of the original Markdown formatter written in Perl
-by John Gruber. This special "Extra" version of PHP Markdown features
-further enhancements to the syntax for making additional constructs
+This is a PHP port of the original Markdown formatter written in Perl 
+by John Gruber. This special "Extra" version of PHP Markdown features 
+further enhancements to the syntax for making additional constructs 
 such as tables and definition list.
 
 Markdown is a text-to-HTML filter; it translates an easy-to-read /
@@ -2993,7 +2883,7 @@ expected; (3) the output Markdown actually produced.
 
 
 Version History
----------------
+--------------- 
 
 See the readme file for detailed release notes for this version.
 
@@ -3001,14 +2891,14 @@ See the readme file for detailed release notes for this version.
 Copyright and License
 ---------------------
 
-PHP Markdown & Extra
-Copyright (c) 2004-2008 Michel Fortin
-<http://www.michelf.com/>
+PHP Markdown & Extra  
+Copyright (c) 2004-2009 Michel Fortin  
+<http://michelf.com/>  
 All rights reserved.
 
-Based on Markdown
-Copyright (c) 2003-2006 John Gruber
-<http://daringfireball.net/>
+Based on Markdown  
+Copyright (c) 2003-2006 John Gruber   
+<http://daringfireball.net/>   
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
@@ -3039,4 +2929,4 @@ negligence or otherwise) arising in any way out of the use of this
 software, even if advised of the possibility of such damage.
 
 */
-?>
+?>
\ No newline at end of file
diff --git a/view/theme/vier/style.css b/view/theme/vier/style.css
index a9ff22f78d..258a69cb52 100644
--- a/view/theme/vier/style.css
+++ b/view/theme/vier/style.css
@@ -122,6 +122,17 @@
 .next           { background-position: -110px -60px;}
 .tagged     { background-position: -130px -60px;}
 
+.attachtype {
+        display: block; width: 20px; height: 23px;
+        background-image: url('../../../images/content-types.png');
+}
+
+.type-video { background-position: 0px 0px; }
+.type-image { background-position: -20px 0px; }
+.type-audio { background-position: -40px 0px; }
+.type-text  { background-position: -60px 0px; }
+.type-unkn  { background-position: -80px 0px; }
+
 .icon.drop, .icon.drophide {
  float: left;
 }