From 2f46675a89b1dcb453654be4be2117114a3d0a65 Mon Sep 17 00:00:00 2001
From: Michael Vogel <icarus@dabo.de>
Date: Sun, 22 Feb 2015 17:38:28 +0100
Subject: [PATCH 01/13] New routines for markdown to html and html to markdown.

---
 include/bb2diaspora.php                       |   19 +-
 include/bbcode.php                            |    7 +-
 library/html-to-markdown/HTML_To_Markdown.php |  592 ++++
 library/html-to-markdown/LICENSE              |   20 +
 library/html-to-markdown/README.md            |  138 +
 library/markdown.php                          | 2932 +----------------
 library/parsedown/LICENSE.txt                 |   20 +
 library/parsedown/Parsedown.php               | 1528 +++++++++
 library/parsedown/README.md                   |   48 +
 9 files changed, 2368 insertions(+), 2936 deletions(-)
 create mode 100644 library/html-to-markdown/HTML_To_Markdown.php
 create mode 100644 library/html-to-markdown/LICENSE
 create mode 100644 library/html-to-markdown/README.md
 create mode 100644 library/parsedown/LICENSE.txt
 create mode 100755 library/parsedown/Parsedown.php
 create mode 100644 library/parsedown/README.md

diff --git a/include/bb2diaspora.php b/include/bb2diaspora.php
index 7107c49139..272b69dff9 100644
--- a/include/bb2diaspora.php
+++ b/include/bb2diaspora.php
@@ -5,7 +5,8 @@ require_once("include/event.php");
 require_once("library/markdown.php");
 require_once("include/html2bbcode.php");
 require_once("include/bbcode.php");
-require_once("include/markdownify/markdownify.php");
+require_once("library/html-to-markdown/HTML_To_Markdown.php");
+//require_once("include/markdownify/markdownify.php");
 
 
 // we don't want to support a bbcode specific markdown interpreter
@@ -21,15 +22,15 @@ function diaspora2bb($s) {
 	$s = str_replace("\r","",$s);
 
 	// <br/> is invalid. Replace it with the valid expression
-	$s = str_replace(array("<br/>", "</p>", "<p>", '<p dir="ltr">'),array("<br />", "<br />", "<br />", "<br />"),$s);
-
-	$s = preg_replace('/\@\{(.+?)\; (.+?)\@(.+?)\}/','@[url=https://$3/u/$2]$1[/url]',$s);
+	//$s = str_replace(array("<br/>", "</p>", "<p>", '<p dir="ltr">'),array("<br />", "<br />", "<br />", "<br />"),$s);
 
 	// Escaping the hash tags
 	$s = preg_replace('/\#([^\s\#])/','&#35;$1',$s);
 
 	$s = Markdown($s);
 
+	$s = preg_replace('/\@\{(.+?)\; (.+?)\@(.+?)\}/','@[url=https://$3/u/$2]$1[/url]',$s);
+
 	$s = str_replace('&#35;','#',$s);
 
 	$s = html2bbcode($s);
@@ -92,12 +93,15 @@ function bb2diaspora($Text,$preserve_nl = false, $fordiaspora = true) {
 		$Text = bbcode($Text, $preserve_nl, false, 4);
 
 		// Libertree doesn't convert a harizontal rule if there isn't a linefeed
-		$Text = str_replace(array("<hr />", "<hr>"), array("<br /><hr />", "<br><hr>"), $Text);
+		//$Text = str_replace(array("<hr />", "<hr>"), array("<br /><hr />", "<br><hr>"), $Text);
 	}
 
 	// Now convert HTML to Markdown
-	$md = new Markdownify(false, false, false);
-	$Text = $md->parseString($Text);
+	$Text = new HTML_To_Markdown($Text);
+
+/*
+	//$md = new Markdownify(false, false, false);
+	//$Text = $md->parseString($Text);
 
 	// The Markdownify converter converts underscores '_' in URLs to '\_', which
 	// messes up the URL. Manually fix these
@@ -123,6 +127,7 @@ function bb2diaspora($Text,$preserve_nl = false, $fordiaspora = true) {
 
 	// Remove all unconverted tags
 	$Text = strip_tags($Text);
+*/
 
 	// Remove any leading or trailing whitespace, as this will mess up
 	// the Diaspora signature verification and cause the item to disappear
diff --git a/include/bbcode.php b/include/bbcode.php
index 9a3563527a..d461b98482 100644
--- a/include/bbcode.php
+++ b/include/bbcode.php
@@ -168,6 +168,8 @@ function bb_remove_share_information($Text, $plaintext = false, $nolink = false)
 }
 
 function bb_cleanup_share($shared, $plaintext, $nolink) {
+	$shared[1] = trim($shared[1]);
+
 	if (!in_array($shared[2], array("type-link", "type-video")))
 		return($shared[0]);
 
@@ -178,7 +180,7 @@ function bb_cleanup_share($shared, $plaintext, $nolink) {
 		return($shared[0]);
 
 	if ($nolink)
-		return(trim($shared[1]));
+		return($shared[1]);
 
 	$title = "";
 	$link = "";
@@ -189,6 +191,9 @@ function bb_cleanup_share($shared, $plaintext, $nolink) {
 	if (isset($bookmark[1][0]))
 		$link = $bookmark[1][0];
 
+	if (($title != "") AND (strpos($title, $shared[1]) !== false))
+		$shared[1] = $title;
+
 	if (($title != "") AND ((strpos($shared[1],$title) !== false) OR
 		(similar_text($shared[1],$title) / strlen($title)) > 0.9))
 		$title = "";
diff --git a/library/html-to-markdown/HTML_To_Markdown.php b/library/html-to-markdown/HTML_To_Markdown.php
new file mode 100644
index 0000000000..1cc86505b6
--- /dev/null
+++ b/library/html-to-markdown/HTML_To_Markdown.php
@@ -0,0 +1,592 @@
+<?php
+/**
+ * Class HTML_To_Markdown
+ *
+ * A helper class to convert HTML to Markdown.
+ *
+ * @version 2.1.2
+ * @author Nick Cernis <nick@cern.is>
+ * @link https://github.com/nickcernis/html2markdown/ Latest version on GitHub.
+ * @link http://twitter.com/nickcernis Nick on twitter.
+ * @license http://www.opensource.org/licenses/mit-license.php MIT
+ */
+class HTML_To_Markdown
+{
+    /**
+     * @var DOMDocument The root of the document tree that holds our HTML.
+     */
+    private $document;
+
+    /**
+     * @var string|boolean The Markdown version of the original HTML, or false if conversion failed
+     */
+    private $output;
+
+    /**
+     * @var array Class-wide options users can override.
+     */
+    private $options = array(
+        'header_style'    => 'setext', // Set to "atx" to output H1 and H2 headers as # Header1 and ## Header2
+        'suppress_errors' => true, // Set to false to show warnings when loading malformed HTML
+        'strip_tags'      => false, // Set to true to strip tags that don't have markdown equivalents. N.B. Strips tags, not their content. Useful to clean MS Word HTML output.
+        'bold_style'      => '**', // Set to '__' if you prefer the underlined style
+        'italic_style'    => '*', // Set to '_' if you prefer the underlined style
+        'remove_nodes'    => '', // space-separated list of dom nodes that should be removed. example: "meta style script"
+    );
+
+
+    /**
+     * Constructor
+     *
+     * Set up a new DOMDocument from the supplied HTML, convert it to Markdown, and store it in $this->$output.
+     *
+     * @param string $html The HTML to convert to Markdown.
+     * @param array $overrides [optional] List of style and error display overrides.
+     */
+    public function __construct($html = null, $overrides = null)
+    {
+        if ($overrides)
+            $this->options = array_merge($this->options, $overrides);
+
+        if ($html)
+            $this->convert($html);
+    }
+
+
+    /**
+     * Setter for conversion options
+     *
+     * @param $name
+     * @param $value
+     */
+    public function set_option($name, $value)
+    {
+        $this->options[$name] = $value;
+    }
+
+
+    /**
+     * Convert
+     *
+     * Loads HTML and passes to get_markdown()
+     *
+     * @param $html
+     * @return string The Markdown version of the html
+     */
+    public function convert($html)
+    {
+        $html = preg_replace('~>\s+<~', '><', $html); // Strip white space between tags to prevent creation of empty #text nodes
+
+        $this->document = new DOMDocument();
+
+        if ($this->options['suppress_errors'])
+            libxml_use_internal_errors(true); // Suppress conversion errors (from http://bit.ly/pCCRSX )
+
+        $this->document->loadHTML('<?xml encoding="UTF-8">' . $html); // Hack to load utf-8 HTML (from http://bit.ly/pVDyCt )
+        $this->document->encoding = 'UTF-8';
+
+        if ($this->options['suppress_errors'])
+            libxml_clear_errors();
+
+        return $this->get_markdown($html);
+    }
+
+
+    /**
+     * Is Child Of?
+     *
+     * Is the node a child of the given parent tag?
+     *
+     * @param $parent_name string The name of the parent node to search for (e.g. 'code')
+     * @param $node
+     * @return bool
+     */
+    private static function is_child_of($parent_name, $node)
+    {
+        for ($p = $node->parentNode; $p != false; $p = $p->parentNode) {
+            if (is_null($p))
+                return false;
+
+            if ($p->nodeName == $parent_name)
+                return true;
+        }
+        return false;
+    }
+
+
+    /**
+     * Convert Children
+     *
+     * Recursive function to drill into the DOM and convert each node into Markdown from the inside out.
+     *
+     * Finds children of each node and convert those to #text nodes containing their Markdown equivalent,
+     * starting with the innermost element and working up to the outermost element.
+     *
+     * @param $node
+     */
+    private function convert_children($node)
+    {
+        // Don't convert HTML code inside <code> and <pre> blocks to Markdown - that should stay as HTML
+        if (self::is_child_of('pre', $node) || self::is_child_of('code', $node))
+            return;
+
+        // If the node has children, convert those to Markdown first
+        if ($node->hasChildNodes()) {
+            $length = $node->childNodes->length;
+
+            for ($i = 0; $i < $length; $i++) {
+                $child = $node->childNodes->item($i);
+                $this->convert_children($child);
+            }
+        }
+
+        // Now that child nodes have been converted, convert the original node
+        $markdown = $this->convert_to_markdown($node);
+
+        // Create a DOM text node containing the Markdown equivalent of the original node
+        $markdown_node = $this->document->createTextNode($markdown);
+
+        // Replace the old $node e.g. "<h3>Title</h3>" with the new $markdown_node e.g. "### Title"
+        $node->parentNode->replaceChild($markdown_node, $node);
+    }
+
+
+    /**
+     * Get Markdown
+     *
+     * Sends the body node to convert_children() to change inner nodes to Markdown #text nodes, then saves and
+     * returns the resulting converted document as a string in Markdown format.
+     *
+     * @return string|boolean The converted HTML as Markdown, or false if conversion failed
+     */
+    private function get_markdown()
+    {
+        // Work on the entire DOM tree (including head and body)
+        $input = $this->document->getElementsByTagName("html")->item(0);
+
+        if (!$input)
+            return false;
+
+        // Convert all children of this root element. The DOMDocument stored in $this->doc will
+        // then consist of #text nodes, each containing a Markdown version of the original node
+        // that it replaced.
+        $this->convert_children($input);
+
+        // Sanitize and return the body contents as a string.
+        $markdown = $this->document->saveHTML(); // stores the DOMDocument as a string
+        $markdown = html_entity_decode($markdown, ENT_QUOTES, 'UTF-8');
+        $markdown = html_entity_decode($markdown, ENT_QUOTES, 'UTF-8'); // Double decode to cover cases like &amp;nbsp; http://www.php.net/manual/en/function.htmlentities.php#99984
+        $markdown = preg_replace("/<!DOCTYPE [^>]+>/", "", $markdown); // Strip doctype declaration
+        $unwanted = array('<html>', '</html>', '<body>', '</body>', '<head>', '</head>', '<?xml encoding="UTF-8">', '&#xD;');
+        $markdown = str_replace($unwanted, '', $markdown); // Strip unwanted tags
+        $markdown = trim($markdown, "\n\r\0\x0B");
+
+        $this->output = $markdown;
+
+        return $markdown;
+    }
+
+
+    /**
+     * Convert to Markdown
+     *
+     * Converts an individual node into a #text node containing a string of its Markdown equivalent.
+     *
+     * Example: An <h3> node with text content of "Title" becomes a text node with content of "### Title"
+     *
+     * @param $node
+     * @return string The converted HTML as Markdown
+     */
+    private function convert_to_markdown($node)
+    {
+        $tag = $node->nodeName; // the type of element, e.g. h1
+        $value = $node->nodeValue; // the value of that element, e.g. The Title
+        
+        // Strip nodes named in remove_nodes
+        $tags_to_remove = explode(' ', $this->options['remove_nodes']);
+        if ( in_array($tag, $tags_to_remove) )
+            return false;
+
+        switch ($tag) {
+            case "p":
+                $markdown = (trim($value)) ? rtrim($value) . PHP_EOL . PHP_EOL : '';
+                break;
+            case "pre":
+                $markdown = PHP_EOL . $this->convert_code($node) . PHP_EOL;
+                break;
+            case "h1":
+            case "h2":
+                $markdown = $this->convert_header($tag, $node);
+                break;
+            case "h3":
+                $markdown = "### " . $value . PHP_EOL . PHP_EOL;
+                break;
+            case "h4":
+                $markdown = "#### " . $value . PHP_EOL . PHP_EOL;
+                break;
+            case "h5":
+                $markdown = "##### " . $value . PHP_EOL . PHP_EOL;
+                break;
+            case "h6":
+                $markdown = "###### " . $value . PHP_EOL . PHP_EOL;
+                break;
+            case "em":
+            case "i":
+            case "strong":
+            case "b":
+                $markdown = $this->convert_emphasis($tag, $value);
+                break;
+            case "hr":
+                $markdown = "- - - - - -" . PHP_EOL . PHP_EOL;
+                break;
+            case "br":
+                $markdown = "  " . PHP_EOL;
+                break;
+            case "blockquote":
+                $markdown = $this->convert_blockquote($node);
+                break;
+            case "code":
+                $markdown = $this->convert_code($node);
+                break;
+            case "ol":
+            case "ul":
+                $markdown = $value . PHP_EOL;
+                break;
+            case "li":
+                $markdown = $this->convert_list($node);
+                break;
+            case "img":
+                $markdown = $this->convert_image($node);
+                break;
+            case "a":
+                $markdown = $this->convert_anchor($node);
+                break;
+            case "#text":
+                $markdown = preg_replace('~\s+~', ' ', $value);
+                $markdown = preg_replace('~^#~', '\\\\#', $markdown);
+                break;
+            case "#comment":
+                $markdown = '';
+                break;
+            case "div":
+                $markdown = ($this->options['strip_tags']) ? $value . PHP_EOL . PHP_EOL : html_entity_decode($node->C14N());
+                break;
+            default:
+                // If strip_tags is false (the default), preserve tags that don't have Markdown equivalents,
+                // such as <span> nodes on their own. C14N() canonicalizes the node to a string.
+                // See: http://www.php.net/manual/en/domnode.c14n.php
+                $markdown = ($this->options['strip_tags']) ? $value : html_entity_decode($node->C14N());
+        }
+
+        return $markdown;
+    }
+
+
+    /**
+     * Convert Header
+     *
+     * Converts h1 and h2 headers to Markdown-style headers in setext style,
+     * matching the number of underscores with the length of the title.
+     *
+     * e.g.     Header 1    Header Two
+     *          ========    ----------
+     *
+     * Returns atx headers instead if $this->options['header_style'] is "atx"
+     *
+     * e.g.    # Header 1   ## Header Two
+     *
+     * @param string $level The header level, including the "h". e.g. h1
+     * @param string $node The node to convert.
+     * @return string The Markdown version of the header.
+     */
+    private function convert_header($level, $node)
+    {
+        $content = $node->nodeValue;
+
+        if (!$this->is_child_of('blockquote', $node) && $this->options['header_style'] == "setext") {
+            $length = (function_exists('mb_strlen')) ? mb_strlen($content, 'utf-8') : strlen($content);
+            $underline = ($level == "h1") ? "=" : "-";
+            $markdown = $content . PHP_EOL . str_repeat($underline, $length) . PHP_EOL . PHP_EOL; // setext style
+        } else {
+            $prefix = ($level == "h1") ? "# " : "## ";
+            $markdown = $prefix . $content . PHP_EOL . PHP_EOL; // atx style
+        }
+
+        return $markdown;
+    }
+
+
+    /**
+     * Converts inline styles
+     * This function is used to render strong and em tags
+     * 
+     * eg <strong>bold text</strong> becomes **bold text** or __bold text__
+     * 
+     * @param string $tag
+     * @param string $value
+     * @return string
+     */
+     private function convert_emphasis($tag, $value)
+     {
+        if ($tag == 'i' || $tag == 'em') {
+            $markdown = $this->options['italic_style'] . $value . $this->options['italic_style'];
+        } else {
+            $markdown = $this->options['bold_style'] . $value . $this->options['bold_style'];
+        }
+        
+        return $markdown;
+     }
+
+
+    /**
+     * Convert Image
+     *
+     * Converts <img /> tags to Markdown.
+     *
+     * e.g.     <img src="/path/img.jpg" alt="alt text" title="Title" />
+     * becomes  ![alt text](/path/img.jpg "Title")
+     *
+     * @param $node
+     * @return string
+     */
+    private function convert_image($node)
+    {
+        $src = $node->getAttribute('src');
+        $alt = $node->getAttribute('alt');
+        $title = $node->getAttribute('title');
+
+        if ($title != "") {
+            $markdown = '![' . $alt . '](' . $src . ' "' . $title . '")'; // No newlines added. <img> should be in a block-level element.
+        } else {
+            $markdown = '![' . $alt . '](' . $src . ')';
+        }
+
+        return $markdown;
+    }
+
+
+    /**
+     * Convert Anchor
+     *
+     * Converts <a> tags to Markdown.
+     *
+     * e.g.     <a href="http://modernnerd.net" title="Title">Modern Nerd</a>
+     * becomes  [Modern Nerd](http://modernnerd.net "Title")
+     *
+     * @param $node
+     * @return string
+     */
+    private function convert_anchor($node)
+    {
+        $href = $node->getAttribute('href');
+        $title = $node->getAttribute('title');
+        $text = $node->nodeValue;
+
+        if ($title != "") {
+            $markdown = '[' . $text . '](' . $href . ' "' . $title . '")';
+        } else {
+            $markdown = '[' . $text . '](' . $href . ')';
+        }
+
+        // Append a space if the node after this one is also an anchor
+        $next_node_name = $this->get_next_node_name($node);
+
+        if ($next_node_name == 'a')
+            $markdown = $markdown . ' ';
+
+        return $markdown;
+    }
+
+
+    /**
+     * Convert List
+     *
+     * Converts <ul> and <ol> lists to Markdown.
+     *
+     * @param $node
+     * @return string
+     */
+    private function convert_list($node)
+    {
+        // If parent is an ol, use numbers, otherwise, use dashes
+        $list_type = $node->parentNode->nodeName;
+        $value = $node->nodeValue;
+
+        if ($list_type == "ul") {
+            $markdown = "- " . trim($value) . PHP_EOL;
+        } else {
+            $number = $this->get_position($node);
+            $markdown = $number . ". " . trim($value) . PHP_EOL;
+        }
+
+        return $markdown;
+    }
+
+
+    /**
+     * Convert Code
+     *
+     * Convert code tags by indenting blocks of code and wrapping single lines in backticks.
+     *
+     * @param DOMNode $node
+     * @return string
+     */
+    private function convert_code($node)
+    {
+        // Store the content of the code block in an array, one entry for each line
+
+        $markdown = '';
+
+        $code_content = html_entity_decode($this->document->saveHTML($node));
+        $code_content = str_replace(array("<code>", "</code>"), "", $code_content);
+        $code_content = str_replace(array("<pre>", "</pre>"), "", $code_content);
+
+        $lines = preg_split('/\r\n|\r|\n/', $code_content);
+        $total = count($lines);
+
+        // If there's more than one line of code, prepend each line with four spaces and no backticks.
+        if ($total > 1 || $node->nodeName === 'pre') {
+
+            // Remove the first and last line if they're empty
+            $first_line = trim($lines[0]);
+            $last_line = trim($lines[$total - 1]);
+            $first_line = trim($first_line, "&#xD;"); //trim XML style carriage returns too
+            $last_line = trim($last_line, "&#xD;");
+
+            if (empty($first_line))
+                array_shift($lines);
+
+            if (empty($last_line))
+                array_pop($lines);
+
+            $count = 1;
+            foreach ($lines as $line) {
+                $line = str_replace('&#xD;', '', $line);
+                $markdown .= "    " . $line;
+                // Add newlines, except final line of the code
+                if ($count != $total)
+                    $markdown .= PHP_EOL;
+                $count++;
+            }
+            $markdown .= PHP_EOL;
+
+        } else { // There's only one line of code. It's a code span, not a block. Just wrap it with backticks.
+
+            $markdown .= "`" . $lines[0] . "`";
+
+        }
+        
+        return $markdown;
+    }
+
+
+    /**
+     * Convert blockquote
+     *
+     * Prepend blockquotes with > chars.
+     *
+     * @param $node
+     * @return string
+     */
+    private function convert_blockquote($node)
+    {
+        // Contents should have already been converted to Markdown by this point,
+        // so we just need to add ">" symbols to each line.
+
+        $markdown = '';
+
+        $quote_content = trim($node->nodeValue);
+
+        $lines = preg_split('/\r\n|\r|\n/', $quote_content);
+
+        $total_lines = count($lines);
+
+        foreach ($lines as $i => $line) {
+            $markdown .= "> " . $line . PHP_EOL;
+            if ($i + 1 == $total_lines)
+                $markdown .= PHP_EOL;
+        }
+
+        return $markdown;
+    }
+
+
+    /**
+     * Get Position
+     *
+     * Returns the numbered position of a node inside its parent
+     *
+     * @param $node
+     * @return int The numbered position of the node, starting at 1.
+     */
+    private function get_position($node)
+    {
+        // Get all of the nodes inside the parent
+        $list_nodes = $node->parentNode->childNodes;
+        $total_nodes = $list_nodes->length;
+
+        $position = 1;
+
+        // Loop through all nodes and find the given $node
+        for ($a = 0; $a < $total_nodes; $a++) {
+            $current_node = $list_nodes->item($a);
+
+            if ($current_node->isSameNode($node))
+                $position = $a + 1;
+        }
+
+        return $position;
+    }
+
+
+    /**
+     * Get Next Node Name
+     *
+     * Return the name of the node immediately after the passed one.
+     *
+     * @param $node
+     * @return string|null The node name (e.g. 'h1') or null.
+     */
+    private function get_next_node_name($node)
+    {
+        $next_node_name = null;
+
+        $current_position = $this->get_position($node);
+        $next_node = $node->parentNode->childNodes->item($current_position);
+
+        if ($next_node)
+            $next_node_name = $next_node->nodeName;
+
+        return $next_node_name;
+    }
+
+
+    /**
+     * To String
+     *
+     * Magic method to return Markdown output when HTML_To_Markdown instance is treated as a string.
+     *
+     * @return string
+     */
+    public function __toString()
+    {
+        return $this->output();
+    }
+
+
+    /**
+     * Output
+     *
+     * Getter for the converted Markdown contents stored in $this->output
+     *
+     * @return string
+     */
+    public function output()
+    {
+        if (!$this->output) {
+            return '';
+        } else {
+            return $this->output;
+        }
+    }
+}
diff --git a/library/html-to-markdown/LICENSE b/library/html-to-markdown/LICENSE
new file mode 100644
index 0000000000..f538c2ac90
--- /dev/null
+++ b/library/html-to-markdown/LICENSE
@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2013 Nick Cernis
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/library/html-to-markdown/README.md b/library/html-to-markdown/README.md
new file mode 100644
index 0000000000..124c9868a9
--- /dev/null
+++ b/library/html-to-markdown/README.md
@@ -0,0 +1,138 @@
+HTML To Markdown for PHP
+========================
+
+A helper class that converts HTML to [Markdown](http://daringfireball.net/projects/markdown/) for your sanity and convenience.
+
+[![Build Status](https://travis-ci.org/nickcernis/html-to-markdown.png?branch=master)](https://travis-ci.org/nickcernis/html-to-markdown)
+
+**Version**: 2.2.0  
+**Requires**: PHP 5.3+  
+**Author**: [@nickcernis](http://twitter.com/nickcernis)  
+**License**: [MIT](http://www.opensource.org/licenses/mit-license.php)  
+
+### Why convert HTML to Markdown?
+
+*"What alchemy is this?"* you mutter. *"I can see why you'd convert [Markdown to HTML](http://michelf.com/projects/php-markdown/),"* you continue, already labouring the question somewhat, *"but why go the other way?"*
+
+Typically you would convert HTML to Markdown if:
+
+1. You have an existing HTML document that needs to be edited by people with good taste.
+2. You want to store new content in HTML format but edit it as Markdown.
+3. You want to convert HTML email to plain text email. 
+4. You know a guy who's been converting HTML to Markdown for years, and now he can speak Elvish. You'd quite like to be able to speak Elvish.
+5. You just really like Markdown.
+
+### How to use it
+
+Either include HTML_To_Markdown.php directly:
+
+    require_once( dirname( __FILE__) . '/HTML_To_Markdown.php' );
+
+Or, require the library in your composer.json:
+
+    {
+        "require": {
+            "nickcernis/html-to-markdown": "dev-master"
+        }
+    }
+
+Then `composer install` and add `require 'vendor/autoload.php';` to the top of your script.
+
+Next, create a new HTML_To_Markdown instance, passing in your valid HTML code:
+
+    $html = "<h3>Quick, to the Batpoles!</h3>";
+    $markdown = new HTML_To_Markdown($html);
+
+The `$markdown` object now contains the Markdown version of your HTML. Use it like a string:
+
+    echo $markdown; // ==> ### Quick, to the Batpoles!
+
+Or access the Markdown output directly:
+
+    $string = $markdown->output();
+
+The included `demo` directory contains an HTML->Markdown conversion form to try out.
+
+### Conversion options
+
+By default, HTML To Markdown preserves HTML tags without Markdown equivalents, like `<span>` and `<div>`.
+
+To strip HTML tags that don't have a Markdown equivalent while preserving the content inside them, set `strip_tags` to true, like this:
+
+    $html = '<span>Turnips!</span>';
+    $markdown = new HTML_To_Markdown($html, array('strip_tags' => true)); // $markdown now contains "Turnips!"    
+
+Or more explicitly, like this:
+
+    $html = '<span>Turnips!</span>';
+    $markdown = new HTML_To_Markdown();
+    $markdown->set_option('strip_tags', true);
+    $markdown->convert($html); // $markdown now contains "Turnips!"
+
+Note that only the tags themselves are stripped, not the content they hold.
+
+To strip tags and their content, pass a space-separated list of tags in `remove_nodes`, like this:
+
+    $html = '<span>Turnips!</span><div>Monkeys!</div>';
+    $markdown = new HTML_To_Markdown($html, array('remove_nodes' => 'span div')); // $markdown now contains ""
+
+### Style options
+
+Bold and italic tags are converted using the asterisk syntax by default. Change this to the underlined syntax using the `bold_style` and `italic_style` options.
+
+    $html = '<em>Italic</em> and a <strong>bold</strong>';
+    $markdown = new HTML_To_Markdown();
+    $markdown->set_option('italic_style', '_');
+    $markdown->set_option('bold_style', '__');
+    $markdown->convert($html); // $markdown now contains "_Italic_ and a __bold__"
+
+### Limitations
+
+- Markdown Extra, MultiMarkdown and other variants aren't supported – just Markdown.
+
+### Known issues
+
+- Nested lists and lists containing multiple paragraphs aren't converted correctly.
+- Lists inside blockquotes aren't converted correctly.
+- Any reported [open issues here](https://github.com/nickcernis/html-to-markdown/issues?state=open).
+
+[Report your issue or request a feature here.](https://github.com/nickcernis/html2markdown/issues/new) Issues with patches or failing tests are especially welcome.
+
+### Style notes
+
+- Setext (underlined) headers are the default for H1 and H2. If you prefer the ATX style for H1 and H2 (# Header 1 and ## Header 2), set `header_style` to 'atx' in the options array when you instantiate the object:
+
+    `$markdown = new HTML_To_Markdown( $html, array('header_style'=>'atx') );`
+
+     Headers of H3 priority and lower always use atx style.
+
+- Links and images are referenced inline. Footnote references (where image src and anchor href attributes are listed in the footnotes) are not used. 
+- Blockquotes aren't line wrapped – it makes the converted Markdown easier to edit.
+
+### Dependencies
+
+HTML To Markdown requires PHP's [xml](http://www.php.net/manual/en/xml.installation.php), [lib-xml](http://www.php.net/manual/en/libxml.installation.php), and [dom](http://www.php.net/manual/en/dom.installation.php) extensions, all of which are enabled by default on most distributions.
+
+Errors such as "Fatal error: Class 'DOMDocument' not found" on distributions such as CentOS that disable PHP's xml extension can be resolved by installing php-xml.
+
+### Architecture notes
+
+HTML To Markdown is a single file that uses native DOM manipulation libraries (DOMDocument), not regex voodoo, to convert code.
+
+### Contributors
+
+Many thanks to all [contributors](https://github.com/nickcernis/html2markdown/graphs/contributors) so far. Further improvements and feature suggestions are very welcome.
+
+### How it works
+
+HTML To Markdown creates a DOMDocument from the supplied HTML, walks through the tree, and converts each node to a text node containing the equivalent markdown, starting from the most deeply nested node and working inwards towards the root node.
+
+### To-do
+
+- Support for nested lists and lists inside blockquotes.
+- Offer an option to preserve tags as HTML if they contain attributes that can't be represented with Markdown (e.g. `style`).
+
+### Trying to convert Markdown to HTML?
+
+Use [PHP Markdown](http://michelf.com/projects/php-markdown/) from Michel Fortin. No guarantees about the Elvish, though.
+
diff --git a/library/markdown.php b/library/markdown.php
index f548fc26c3..271d2e36c6 100644
--- a/library/markdown.php
+++ b/library/markdown.php
@@ -1,2932 +1,8 @@
 <?php
-#
-# Markdown Extra  -  A text-to-HTML conversion tool for web writers
-#
-# PHP Markdown & Extra
-# Copyright (c) 2004-2012 Michel Fortin  
-# <http://michelf.com/projects/php-markdown/>
-#
-# Original Markdown
-# Copyright (c) 2004-2006 John Gruber  
-# <http://daringfireball.net/projects/markdown/>
-#
-
-
-define( 'MARKDOWN_VERSION',  "1.0.1o" ); # Sun 8 Jan 2012
-define( 'MARKDOWNEXTRA_VERSION',  "1.2.5" ); # Sun 8 Jan 2012
-
-
-#
-# Global default settings:
-#
-
-# Change to ">" for HTML output
-@define( 'MARKDOWN_EMPTY_ELEMENT_SUFFIX',  " />");
-
-# Define the width of a tab for code blocks.
-@define( 'MARKDOWN_TAB_WIDTH',     4 );
-
-# Optional title attribute for footnote links and backlinks.
-@define( 'MARKDOWN_FN_LINK_TITLE',         "" );
-@define( 'MARKDOWN_FN_BACKLINK_TITLE',     "" );
-
-# Optional class attribute for footnote links and backlinks.
-@define( 'MARKDOWN_FN_LINK_CLASS',         "" );
-@define( 'MARKDOWN_FN_BACKLINK_CLASS',     "" );
-
-
-#
-# WordPress settings:
-#
-
-# Change to false to remove Markdown from posts and/or comments.
-@define( 'MARKDOWN_WP_POSTS',      true );
-@define( 'MARKDOWN_WP_COMMENTS',   true );
-
-
-
-### Standard Function Interface ###
-
-@define( 'MARKDOWN_PARSER_CLASS',  'MarkdownExtra_Parser' );
+require_once("library/parsedown/Parsedown.php");
 
 function Markdown($text) {
-#
-# Initialize the parser and return the result of its transform method.
-#
-	# Setup static parser variable.
-	static $parser;
-	if (!isset($parser)) {
-		$parser_class = MARKDOWN_PARSER_CLASS;
-		$parser = new $parser_class;
-	}
-
-	# Transform text using parser.
-	return $parser->transform($text);
+	$Parsedown = new Parsedown();
+	return($Parsedown->text($text));
 }
-
-
-### WordPress Plugin Interface ###
-
-/*
-Plugin Name: Markdown Extra
-Plugin URI: http://michelf.com/projects/php-markdown/
-Description: <a href="http://daringfireball.net/projects/markdown/syntax">Markdown syntax</a> allows you to write using an easy-to-read, easy-to-write plain text format. Based on the original Perl version by <a href="http://daringfireball.net/">John Gruber</a>. <a href="http://michelf.com/projects/php-markdown/">More...</a>
-Version: 1.2.5
-Author: Michel Fortin
-Author URI: http://michelf.com/
-*/
-
-if (isset($wp_version)) {
-	# More details about how it works here:
-	# <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.
-	# - Add paragraph tag around the excerpt, but remove it for the excerpt rss.
-	if (MARKDOWN_WP_POSTS) {
-		remove_filter('the_content',     'wpautop');
-        remove_filter('the_content_rss', 'wpautop');
-		remove_filter('the_excerpt',     'wpautop');
-		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');
-		
-		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 $parser;
-		if (!$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.
-	# - Scramble important tags before passing them to the kses filter.
-	# - Run Markdown on excerpt then remove paragraph tags.
-	if (MARKDOWN_WP_COMMENTS) {
-		remove_filter('comment_text', 'wpautop', 30);
-		remove_filter('comment_text', 'make_clickable');
-		add_filter('pre_comment_content', 'Markdown', 6);
-		add_filter('pre_comment_content', 'mdwp_hide_tags', 8);
-		add_filter('pre_comment_content', 'mdwp_show_tags', 12);
-		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>');
-		$mdwp_placeholders = explode(' ', str_rot13(
-			'pEj07ZbbBZ U1kqgh4w4p pre2zmeN6K QTi31t9pre ol0MP1jzJR '.
-			'ML5IjmbRol ulANi1NsGY J7zRLJqPul liA8ctl16T K9nhooUHli'));
-	}
-	
-	function mdwp_add_p($text) {
-		if (!preg_match('{^$|^<(p|ul|ol|dl|pre|blockquote)>}i', $text)) {
-			$text = '<p>'.$text.'</p>';
-			$text = preg_replace('{\n{2,}}', "</p>\n\n<p>", $text);
-		}
-		return $text;
-	}
-	
-	function mdwp_strip_p($t) { return preg_replace('{</?p>}i', '', $t); }
-
-	function mdwp_hide_tags($text) {
-		global $mdwp_hidden_tags, $mdwp_placeholders;
-		return str_replace($mdwp_hidden_tags, $mdwp_placeholders, $text);
-	}
-	function mdwp_show_tags($text) {
-		global $mdwp_hidden_tags, $mdwp_placeholders;
-		return str_replace($mdwp_placeholders, $mdwp_hidden_tags, $text);
-	}
-}
-
-
-### bBlog Plugin Info ###
-
-function identify_modifier_markdown() {
-	return array(
-		'name' => 'markdown',
-		'type' => 'modifier',
-		'nicename' => 'PHP Markdown Extra',
-		'description' => 'A text-to-HTML conversion tool for web writers',
-		'authors' => 'Michel Fortin and John Gruber',
-		'licence' => 'GPL',
-		'version' => MARKDOWNEXTRA_VERSION,
-		'help' => '<a href="http://daringfireball.net/projects/markdown/syntax">Markdown syntax</a> allows you to write using an easy-to-read, easy-to-write plain text format. Based on the original Perl version by <a href="http://daringfireball.net/">John Gruber</a>. <a href="http://michelf.com/projects/php-markdown/">More...</a>',
-		);
-}
-
-
-### Smarty Modifier Interface ###
-
-function smarty_modifier_markdown($text) {
-	return Markdown($text);
-}
-
-
-### Textile Compatibility Mode ###
-
-# Rename this file to "classTextile.php" and it can replace Textile everywhere.
-
-if (strcasecmp(substr(__FILE__, -16), "classTextile.php") == 0) {
-	# Try to include PHP SmartyPants. Should be in the same directory.
-	@include_once 'smartypants.php';
-	# Fake Textile class. It calls Markdown instead.
-	class Textile {
-		function TextileThis($text, $lite='', $encode='') {
-			if ($lite == '' && $encode == '')    $text = Markdown($text);
-			if (function_exists('SmartyPants'))  $text = SmartyPants($text);
-			return $text;
-		}
-		# Fake restricted version: restrictions are not supported for now.
-		function TextileRestricted($text, $lite='', $noimage='') {
-			return $this->TextileThis($text, $lite);
-		}
-		# Workaround to ensure compatibility with TextPattern 4.0.3.
-		function blockLite($text) { return $text; }
-	}
-}
-
-
-
-#
-# Markdown Parser Class
-#
-
-class Markdown_Parser {
-
-	# Regex to match balanced [brackets].
-	# 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;
-
-	# Table of hash values for escaped characters:
-	var $escape_chars = '\`*_{}[]()>#+-.!';
-	var $escape_chars_re;
-
-	# 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();
-
-
-	function Markdown_Parser() {
-	#
-	# Constructor function. Initialize appropriate member variables.
-	#
-		$this->_initDetab();
-		$this->prepareItalicsAndBold();
-	
-		$this->nested_brackets_re = 
-			str_repeat('(?>[^\[\]]+|\[', $this->nested_brackets_depth).
-			str_repeat('\])*', $this->nested_brackets_depth);
-	
-		$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);
-		asort($this->span_gamut);
-	}
-
-
-	# Internal hashes used during transformation.
-	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 
-	# 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 
-	# which may be taking up memory unnecessarly.
-	#
-		$this->urls = array();
-		$this->titles = array();
-		$this->html_hashes = array();
-	}
-
-
-	function transform($text) {
-	#
-	# Main function. Performs some preprocessing on the input text
-	# 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);
-
-		# Standardize line endings:
-		#   DOS to Unix and Mac to Unix
-		$text = preg_replace('{\r\n?}', "\n", $text);
-
-		# Make sure $text ends with a couple of newlines:
-		$text .= "\n\n";
-
-		# Convert all tabs to spaces.
-		$text = $this->detab($text);
-
-		# Turn block-level HTML blocks into hash entries
-		$text = $this->hashHTMLBlocks($text);
-
-		# Strip any lines consisting only of spaces and tabs.
-		# This makes subsequent regexen easier to write, because we can
-		# match consecutive blank lines with /\n+/ instead of something
-		# contorted like /[ ]*\n+/ .
-		$text = preg_replace('/^[ ]+$/m', '', $text);
-
-		# Run document gamut methods.
-		foreach ($this->document_gamut as $method => $priority) {
-			$text = $this->$method($text);
-		}
-		
-		$this->teardown();
-
-		return $text . "\n";
-	}
-	
-	var $document_gamut = array(
-		# Strip link definitions, store in hashes.
-		"stripLinkDefinitions" => 20,
-		
-		"runBasicBlockGamut"   => 30,
-		);
-
-
-	function stripLinkDefinitions($text) {
-	#
-	# Strips link definitions from text, stores the URLs and titles in
-	# hash references.
-	#
-		$less_than_tab = $this->tab_width - 1;
-
-		# Link defs are in the form: ^[id]: url "optional title"
-		$text = preg_replace_callback('{
-							^[ ]{0,'.$less_than_tab.'}\[(.+)\][ ]?:	# id = $1
-							  [ ]*
-							  \n?				# maybe *one* newline
-							  [ ]*
-							(?:
-							  <(.+?)>			# url = $2
-							|
-							  (\S+?)			# url = $3
-							)
-							  [ ]*
-							  \n?				# maybe one newline
-							  [ ]*
-							(?:
-								(?<=\s)			# lookbehind for whitespace
-								["(]
-								(.*?)			# title = $4
-								[")]
-								[ ]*
-							)?	# title is optional
-							(?:\n+|\Z)
-			}xm',
-			array(&$this, '_stripLinkDefinitions_callback'),
-			$text);
-		return $text;
-	}
-	function _stripLinkDefinitions_callback($matches) {
-		$link_id = strtolower($matches[1]);
-		$url = $matches[2] == '' ? $matches[3] : $matches[2];
-		$this->urls[$link_id] = $url;
-		$this->titles[$link_id] =& $matches[4];
-		return ''; # String that will replace the block
-	}
-
-
-	function hashHTMLBlocks($text) {
-		if ($this->no_markup)  return $text;
-
-		$less_than_tab = $this->tab_width - 1;
-
-		# Hashify HTML blocks:
-		# We only want to do this for block-level HTML tags, such as headers,
-		# lists, and tables. That's because we still want to wrap <p>s around
-		# "paragraphs" that are wrapped in non-block-level tags, such as anchors,
-		# phrase emphasis, and spans. The list of tags we're looking for is
-		# 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 
-		#    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';
-
-		# Regular expression for the content of a block tag.
-		$nested_tags_level = 4;
-		$attr = '
-			(?>				# optional tag attributes
-			  \s			# starts with whitespace
-			  (?>
-				[^>"/]+		# text outside quotes
-			  |
-				/+(?!>)		# slash not followed by ">"
-			  |
-				"[^"]*"		# text inside double quotes (tolerate ">")
-			  |
-				\'[^\']*\'	# text inside single quotes (tolerate ">")
-			  )*
-			)?	
-			';
-		$content =
-			str_repeat('
-				(?>
-				  [^<]+			# content without tag
-				|
-				  <\2			# nested opening tag
-					'.$attr.'	# attributes
-					(?>
-					  />
-					|
-					  >', $nested_tags_level).	# end of opening tag
-					  '.*?'.					# last level nested tag content
-			str_repeat('
-					  </\2\s*>	# closing nested tag
-					)
-				  |				
-					<(?!/\2\s*>	# other tags with a different name
-				  )
-				)*',
-				$nested_tags_level);
-		$content2 = str_replace('\2', '\3', $content);
-
-		# First, look for nested blocks, e.g.:
-		# 	<div>
-		# 		<div>
-		# 		tags for inner block must be indented.
-		# 		</div>
-		# 	</div>
-		#
-		# The outermost tags must start at the left margin for this to match, and
-		# the inner nested divs must be indented.
-		# We need to do this before the next, more liberal match, because the next
-		# match will start at the first `<div>` and stop at the first `</div>`.
-		$text = preg_replace_callback('{(?>
-			(?>
-				(?<=\n\n)		# Starting after a blank line
-				|				# or
-				\A\n?			# the beginning of the doc
-			)
-			(						# save in $1
-
-			  # Match from `\n<tag>` to `</tag>\n`, handling nested tags 
-			  # in between.
-					
-						[ ]{0,'.$less_than_tab.'}
-						<('.$block_tags_b_re.')# start tag = $2
-						'.$attr.'>			# attributes followed by > and \n
-						'.$content.'		# content, support nesting
-						</\2>				# the matching end tag
-						[ ]*				# trailing spaces/tabs
-						(?=\n+|\Z)	# followed by a newline or end of document
-
-			| # Special version for tags of group a.
-
-						[ ]{0,'.$less_than_tab.'}
-						<('.$block_tags_a_re.')# start tag = $3
-						'.$attr.'>[ ]*\n	# attributes followed by >
-						'.$content2.'		# content, support nesting
-						</\3>				# the matching end tag
-						[ ]*				# trailing spaces/tabs
-						(?=\n+|\Z)	# followed by a newline or end of document
-					
-			| # Special case just for <hr />. It was easier to make a special 
-			  # case than to make the other regex more complicated.
-			
-						[ ]{0,'.$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:
-						<([?%])			# $2
-						.*?
-						\2>
-					)
-					[ ]*
-					(?=\n{2,}|\Z)		# followed by a blank line or end of document
-					
-			)
-			)}Sxmi',
-			array(&$this, '_hashHTMLBlocks_callback'),
-			$text);
-
-		return $text;
-	}
-	function _hashHTMLBlocks_callback($matches) {
-		$text = $matches[1];
-		$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 
-	# element in the text stream. Passing $text to through this function gives
-	# a unique text-token which will be reverted back when calling unhash.
-	#
-	# The $boundary argument specify what character should be used to surround
-	# the token. By convension, "B" is used for block elements that needs not
-	# to be wrapped into paragraph tags at the end, ":" is used for elements
-	# that are word separators and "X" is used in the general case.
-	#
-		# 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;
-		$this->html_hashes[$key] = $text;
-		return $key; # String that will replace the tag.
-	}
-
-
-	function hashBlock($text) {
-	#
-	# Shortcut function for hashPart with block-level boundaries.
-	#
-		return $this->hashPart($text, 'B');
-	}
-
-
-	var $block_gamut = array(
-	#
-	# These are all the transformations that form block-level
-	# tags like paragraphs, headers, and list items.
-	#
-		"doHeaders"         => 10,
-		"doHorizontalRules" => 20,
-		
-		"doLists"           => 40,
-		"doCodeBlocks"      => 50,
-		"doBlockQuotes"     => 60,
-		);
-
-	function runBlockGamut($text) {
-	#
-	# 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 
-		# begining in the Markdown function since hashed blocks can be part of
-		# 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($text) {
-	#
-	# Run block gamut tranformations, without hashing HTML blocks. This is 
-	# useful when HTML blocks are known to be already hashed, like in the first
-	# whole-document pass.
-	#
-		foreach ($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(
-			'{
-				^[ ]{0,3}	# Leading space
-				([-*_])		# $1: First marker
-				(?>			# Repeated marker group
-					[ ]{0,2}	# Zero, one, or two spaces.
-					\1			# Marker character
-				){2,}		# Group repeated at least twice
-				[ ]*		# Tailing spaces
-				$			# End of line.
-			}mx',
-			"\n".$this->hashBlock("<hr$this->empty_element_suffix")."\n", 
-			$text);
-	}
-
-
-	var $span_gamut = array(
-	#
-	# These are all the transformations that occur *within* block-level
-	# tags like paragraphs, headers, and list items.
-	#
-		# Process character escapes, code spans, and inline HTML
-		# in one shot.
-		"parseSpan"           => -30,
-
-		# Process anchor and image tags. Images must come first,
-		# because ![foo][f] looks like an anchor.
-		"doImages"            =>  10,
-		"doAnchors"           =>  20,
-		
-		# Make links out of things like `<http://example.com/>`
-		# Must come after doAnchors, because you can use < and >
-		# delimiters in inline links like [this](<url>).
-		"doAutoLinks"         =>  30,
-		"encodeAmpsAndAngles" =>  40,
-
-		"doItalicsAndBold"    =>  50,
-		"doHardBreaks"        =>  60,
-		);
-
-	function runSpanGamut($text) {
-	#
-	# Run span gamut tranformations.
-	#
-		foreach ($this->span_gamut as $method => $priority) {
-			$text = $this->$method($text);
-		}
-
-		return $text;
-	}
-	
-	
-	function doHardBreaks($text) {
-		# Do hard breaks:
-		return preg_replace_callback('/ {2,}\n/', 
-			array(&$this, '_doHardBreaks_callback'), $text);
-	}
-	function _doHardBreaks_callback($matches) {
-		return $this->hashPart("<br$this->empty_element_suffix\n");
-	}
-
-
-	function doAnchors($text) {
-	#
-	# Turn Markdown link shortcuts into XHTML <a> tags.
-	#
-		if ($this->in_anchor) return $text;
-		$this->in_anchor = true;
-		
-		#
-		# First, handle reference-style links: [link text] [id]
-		#
-		$text = preg_replace_callback('{
-			(					# wrap whole match in $1
-			  \[
-				('.$this->nested_brackets_re.')	# link text = $2
-			  \]
-
-			  [ ]?				# one optional space
-			  (?:\n[ ]*)?		# one optional newline followed by spaces
-
-			  \[
-				(.*?)		# id = $3
-			  \]
-			)
-			}xs',
-			array(&$this, '_doAnchors_reference_callback'), $text);
-
-		#
-		# Next, inline-style links: [link text](url "optional title")
-		#
-		$text = preg_replace_callback('{
-			(				# wrap whole match in $1
-			  \[
-				('.$this->nested_brackets_re.')	# link text = $2
-			  \]
-			  \(			# literal paren
-				[ \n]*
-				(?:
-					<(.+?)>	# href = $3
-				|
-					('.$this->nested_url_parenthesis_re.')	# href = $4
-				)
-				[ \n]*
-				(			# $5
-				  ([\'"])	# quote char = $6
-				  (.*?)		# Title = $7
-				  \6		# matching quote
-				  [ \n]*	# ignore any spaces/tabs between closing quote and )
-				)?			# title is optional
-			  \)
-			)
-			}xs',
-			array(&$this, '_doAnchors_inline_callback'), $text);
-
-		#
-		# Last, handle reference-style shortcuts: [link text]
-		# 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);
-
-		$this->in_anchor = false;
-		return $text;
-	}
-	function _doAnchors_reference_callback($matches) {
-		$whole_match =  $matches[1];
-		$link_text   =  $matches[2];
-		$link_id     =& $matches[3];
-
-		if ($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\"";
-			}
-		
-			$link_text = $this->runSpanGamut($link_text);
-			$result .= ">$link_text</a>";
-			$result = $this->hashPart($result);
-		}
-		else {
-			$result = $whole_match;
-		}
-		return $result;
-	}
-	function _doAnchors_inline_callback($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\"";
-		}
-		
-		$link_text = $this->runSpanGamut($link_text);
-		$result .= ">$link_text</a>";
-
-		return $this->hashPart($result);
-	}
-
-
-	function doImages($text) {
-	#
-	# Turn Markdown image shortcuts into <img> tags.
-	#
-		#
-		# First, handle reference-style labeled images: ![alt text][id]
-		#
-		$text = preg_replace_callback('{
-			(				# wrap whole match in $1
-			  !\[
-				('.$this->nested_brackets_re.')		# alt text = $2
-			  \]
-
-			  [ ]?				# one optional space
-			  (?:\n[ ]*)?		# one optional newline followed by spaces
-
-			  \[
-				(.*?)		# id = $3
-			  \]
-
-			)
-			}xs', 
-			array(&$this, '_doImages_reference_callback'), $text);
-
-		#
-		# Next, handle inline images:  ![alt text](url "optional title")
-		# Don't forget: encode * and _
-		#
-		$text = preg_replace_callback('{
-			(				# wrap whole match in $1
-			  !\[
-				('.$this->nested_brackets_re.')		# alt text = $2
-			  \]
-			  \s?			# One optional whitespace character
-			  \(			# literal paren
-				[ \n]*
-				(?:
-					<(\S*)>	# src url = $3
-				|
-					('.$this->nested_url_parenthesis_re.')	# src url = $4
-				)
-				[ \n]*
-				(			# $5
-				  ([\'"])	# quote char = $6
-				  (.*?)		# title = $7
-				  \6		# matching quote
-				  [ \n]*
-				)?			# title is optional
-			  \)
-			)
-			}xs',
-			array(&$this, '_doImages_inline_callback'), $text);
-
-		return $text;
-	}
-	function _doImages_reference_callback($matches) {
-		$whole_match = $matches[1];
-		$alt_text    = $matches[2];
-		$link_id     = strtolower($matches[3]);
-
-		if ($link_id == "") {
-			$link_id = strtolower($alt_text); # for shortcut links like ![this][].
-		}
-
-		$alt_text = $this->encodeAttribute($alt_text);
-		if (isset($this->urls[$link_id])) {
-			$url = $this->encodeAttribute($this->urls[$link_id]);
-			$result = "<img src=\"$url\" alt=\"$alt_text\"";
-			if (isset($this->titles[$link_id])) {
-				$title = $this->titles[$link_id];
-				$title = $this->encodeAttribute($title);
-				$result .=  " title=\"$title\"";
-			}
-			$result .= $this->empty_element_suffix;
-			$result = $this->hashPart($result);
-		}
-		else {
-			# If there's no such link ID, leave intact:
-			$result = $whole_match;
-		}
-
-		return $result;
-	}
-	function _doImages_inline_callback($matches) {
-		$whole_match	= $matches[1];
-		$alt_text		= $matches[2];
-		$url			= $matches[3] == '' ? $matches[4] : $matches[3];
-		$title			=& $matches[7];
-
-		$alt_text = $this->encodeAttribute($alt_text);
-		$url = $this->encodeAttribute($url);
-		$result = "<img src=\"$url\" alt=\"$alt_text\"";
-		if (isset($title)) {
-			$title = $this->encodeAttribute($title);
-			$result .=  " title=\"$title\""; # $title already quoted
-		}
-		$result .= $this->empty_element_suffix;
-
-		return $this->hashPart($result);
-	}
-
-
-	function doHeaders($text) {
-		# Setext-style headers:
-		#	  Header 1
-		#	  ========
-		#  
-		#	  Header 2
-		#	  --------
-		#
-		$text = preg_replace_callback('{ ^(.+?)[ ]*\n(=+|-+)[ ]*\n+ }mx',
-			array(&$this, '_doHeaders_callback_setext'), $text);
-
-		# atx-style headers:
-		#	# Header 1
-		#	## Header 2
-		#	## Header 2 with closing hashes ##
-		#	...
-		#	###### Header 6
-		#
-		$text = preg_replace_callback('{
-				^(\#{1,6})	# $1 = string of #\'s
-				[ ]*
-				(.+?)		# $2 = Header text
-				[ ]*
-				\#*			# optional closing #\'s (not counted)
-				\n+
-			}xm',
-			array(&$this, '_doHeaders_callback_atx'), $text);
-
-		return $text;
-	}
-	function _doHeaders_callback_setext($matches) {
-		# 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";
-	}
-	function _doHeaders_callback_atx($matches) {
-		$level = strlen($matches[1]);
-		$block = "<h$level>".$this->runSpanGamut($matches[2])."</h$level>";
-		return "\n" . $this->hashBlock($block) . "\n\n";
-	}
-
-
-	function doLists($text) {
-	#
-	# Form HTML ordered (numbered) and unordered (bulleted) lists.
-	#
-		$less_than_tab = $this->tab_width - 1;
-
-		# Re-usable patterns to match list item bullets and number markers:
-		$marker_ul_re  = '[*+-]';
-		$marker_ol_re  = '\d+[\.]';
-		$marker_any_re = "(?:$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 => $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.'})	# $3 = number of spaces
-					('.$marker_re.')			# $4 = first list item marker
-					[ ]+
-				  )
-				  (?s:.+?)
-				  (								# $5
-					  \z
-					|
-					  \n{2,}
-					  (?=\S)
-					  (?!						# Negative lookahead for another list item marker
-						[ ]*
-						'.$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) {
-				$text = preg_replace_callback('{
-						^
-						'.$whole_list_re.'
-					}mx',
-					array(&$this, '_doLists_callback'), $text);
-			}
-			else {
-				$text = preg_replace_callback('{
-						(?:(?<=\n)\n|\A\n?) # Must eat the newline
-						'.$whole_list_re.'
-					}mx',
-					array(&$this, '_doLists_callback'), $text);
-			}
-		}
-
-		return $text;
-	}
-	function _doLists_callback($matches) {
-		# Re-usable patterns to match list item bullets and number markers:
-		$marker_ul_re  = '[*+-]';
-		$marker_ol_re  = '\d+[\.]';
-		$marker_any_re = "(?:$marker_ul_re|$marker_ol_re)";
-		
-		$list = $matches[1];
-		$list_type = preg_match("/$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";
-	}
-
-	var $list_level = 0;
-
-	function processListItems($list_str, $marker_any_re) {
-	#
-	#	Process the contents of a single ordered or unordered list, splitting it
-	#	into individual list items.
-	#
-		# The $this->list_level global keeps track of when we're inside a list.
-		# Each time we enter a list, we increment it; when we leave a list,
-		# we decrement. If it's zero, we're not in a list anymore.
-		#
-		# We do this because when we're not inside a list, we want to treat
-		# something like this:
-		#
-		#		I recommend upgrading to version
-		#		8. Oops, now this line is treated
-		#		as a sub-list.
-		#
-		# As a single paragraph, despite the fact that the second line starts
-		# with a digit-period-space sequence.
-		#
-		# Whereas when we're inside a list (or sub-list), that line will be
-		# treated as the start of a sub-list. What a kludge, huh? This is
-		# an aspect of Markdown's syntax that's hard to parse perfectly
-		# 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:
-		$list_str = preg_replace("/\n{2,}\\z/", "\n", $list_str);
-
-		$list_str = preg_replace_callback('{
-			(\n)?							# leading line = $1
-			(^[ ]*)							# leading whitespace = $2
-			('.$marker_any_re.'				# list marker and space = $3
-				(?:[ ]+|(?=\n))	# space only required if item is not empty
-			)
-			((?s:.*?))						# list item text   = $4
-			(?:(\n+(?=\n))|\n)				# tailing blank line = $5
-			(?= \n* (\z | \2 ('.$marker_any_re.') (?:[ ]+|(?=\n))))
-			}xm',
-			array(&$this, '_processListItems_callback'), $list_str);
-
-		$this->list_level--;
-		return $list_str;
-	}
-	function _processListItems_callback($matches) {
-		$item = $matches[4];
-		$leading_line =& $matches[1];
-		$leading_space =& $matches[2];
-		$marker_space = $matches[3];
-		$tailing_blank_line =& $matches[5];
-
-		if ($leading_line || $tailing_blank_line || 
-			preg_match('/\n{2,}/', $item))
-		{
-			# Replace marker with the appropriate whitespace indentation
-			$item = $leading_space . str_repeat(' ', strlen($marker_space)) . $item;
-			$item = $this->runBlockGamut($this->outdent($item)."\n");
-		}
-		else {
-			# Recursion for sub-lists:
-			$item = $this->doLists($this->outdent($item));
-			$item = preg_replace('/\n+$/', '', $item);
-			$item = $this->runSpanGamut($item);
-		}
-
-		return "<li>" . $item . "</li>\n";
-	}
-
-
-	function doCodeBlocks($text) {
-	#
-	#	Process Markdown `<pre><code>` blocks.
-	#
-		$text = preg_replace_callback('{
-				(?:\n\n|\A\n?)
-				(	            # $1 = the code block -- one or more lines, starting with a space/tab
-				  (?>
-					[ ]{'.$this->tab_width.'}  # Lines must start with a tab or a tab-width of spaces
-					.*\n+
-				  )+
-				)
-				((?=^[ ]{0,'.$this->tab_width.'}\S)|\Z)	# Lookahead for non-space at line-start, or end of doc
-			}xm',
-			array(&$this, '_doCodeBlocks_callback'), $text);
-
-		return $text;
-	}
-	function _doCodeBlocks_callback($matches) {
-		$codeblock = $matches[1];
-
-		$codeblock = $this->outdent($codeblock);
-		$codeblock = htmlspecialchars($codeblock, ENT_NOQUOTES);
-
-		# trim leading newlines and trailing newlines
-		$codeblock = preg_replace('/\A\n+|\n+\z/', '', $codeblock);
-
-		$codeblock = "<pre><code>$codeblock\n</code></pre>";
-		return "\n\n".$this->hashBlock($codeblock)."\n\n";
-	}
-
-
-	function makeCodeSpan($code) {
-	#
-	# Create a code span markup for $code. Called from handleSpanToken.
-	#
-		$code = htmlspecialchars(trim($code), ENT_NOQUOTES);
-		return $this->hashPart("<code>$code</code>");
-	}
-
-
-	var $em_relist = array(
-		''  => '(?:(?<!\*)\*(?!\*)|(?<!_)_(?!_))(?=\S|$)(?![\.,:;]\s)',
-		'*' => '(?<=\S|^)(?<!\*)\*(?!\*)',
-		'_' => '(?<=\S|^)(?<!_)_(?!_)',
-		);
-	var $strong_relist = array(
-		''   => '(?:(?<!\*)\*\*(?!\*)|(?<!_)__(?!_))(?=\S|$)(?![\.,:;]\s)',
-		'**' => '(?<=\S|^)(?<!\*)\*\*(?!\*)',
-		'__' => '(?<=\S|^)(?<!_)__(?!_)',
-		);
-	var $em_strong_relist = array(
-		''    => '(?:(?<!\*)\*\*\*(?!\*)|(?<!_)___(?!_))(?=\S|$)(?![\.,:;]\s)',
-		'***' => '(?<=\S|^)(?<!\*)\*\*\*(?!\*)',
-		'___' => '(?<=\S|^)(?<!_)___(?!_)',
-		);
-	var $em_strong_prepared_relist;
-	
-	function prepareItalicsAndBold() {
-	#
-	# Prepare regular expressions for searching emphasis tokens in any
-	# context.
-	#
-		foreach ($this->em_relist as $em => $em_re) {
-			foreach ($this->strong_relist as $strong => $strong_re) {
-				# Construct list of allowed token expressions.
-				$token_relist = array();
-				if (isset($this->em_strong_relist["$em$strong"])) {
-					$token_relist[] = $this->em_strong_relist["$em$strong"];
-				}
-				$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 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.
-				while ($token_stack[0]) {
-					$text_stack[1] .= array_shift($token_stack);
-					$text_stack[0] .= array_shift($text_stack);
-				}
-				break;
-			}
-			
-			$token_len = strlen($token);
-			if ($tree_char_em) {
-				# Reached closing marker while inside a three-char emphasis.
-				if ($token_len == 3) {
-					# Three-char closing marker, close em and strong.
-					array_shift($token_stack);
-					$span = array_shift($text_stack);
-					$span = $this->runSpanGamut($span);
-					$span = "<strong><em>$span</em></strong>";
-					$text_stack[0] .= $this->hashPart($span);
-					$em = '';
-					$strong = '';
-				} else {
-					# Other closing marker: close one em or strong and
-					# change current token state to match the other
-					$token_stack[0] = str_repeat($token{0}, 3-$token_len);
-					$tag = $token_len == 2 ? "strong" : "em";
-					$span = $text_stack[0];
-					$span = $this->runSpanGamut($span);
-					$span = "<$tag>$span</$tag>";
-					$text_stack[0] = $this->hashPart($span);
-					$$tag = ''; # $$tag stands for $em or $strong
-				}
-				$tree_char_em = false;
-			} else if ($token_len == 3) {
-				if ($em) {
-					# Reached closing marker for both em and strong.
-					# Closing strong marker:
-					for ($i = 0; $i < 2; ++$i) {
-						$shifted_token = array_shift($token_stack);
-						$tag = strlen($shifted_token) == 2 ? "strong" : "em";
-						$span = array_shift($text_stack);
-						$span = $this->runSpanGamut($span);
-						$span = "<$tag>$span</$tag>";
-						$text_stack[0] .= $this->hashPart($span);
-						$$tag = ''; # $$tag stands for $em or $strong
-					}
-				} else {
-					# Reached opening three-char emphasis marker. Push on token 
-					# stack; will be handled by the special condition above.
-					$em = $token{0};
-					$strong = "$em$em";
-					array_unshift($token_stack, $token);
-					array_unshift($text_stack, '');
-					$tree_char_em = true;
-				}
-			} else if ($token_len == 2) {
-				if ($strong) {
-					# Unwind any dangling emphasis marker:
-					if (strlen($token_stack[0]) == 1) {
-						$text_stack[1] .= array_shift($token_stack);
-						$text_stack[0] .= array_shift($text_stack);
-					}
-					# Closing strong marker:
-					array_shift($token_stack);
-					$span = array_shift($text_stack);
-					$span = $this->runSpanGamut($span);
-					$span = "<strong>$span</strong>";
-					$text_stack[0] .= $this->hashPart($span);
-					$strong = '';
-				} else {
-					array_unshift($token_stack, $token);
-					array_unshift($text_stack, '');
-					$strong = $token;
-				}
-			} else {
-				# Here $token_len == 1
-				if ($em) {
-					if (strlen($token_stack[0]) == 1) {
-						# Closing emphasis marker:
-						array_shift($token_stack);
-						$span = array_shift($text_stack);
-						$span = $this->runSpanGamut($span);
-						$span = "<em>$span</em>";
-						$text_stack[0] .= $this->hashPart($span);
-						$em = '';
-					} else {
-						$text_stack[0] .= $token;
-					}
-				} else {
-					array_unshift($token_stack, $token);
-					array_unshift($text_stack, '');
-					$em = $token;
-				}
-			}
-		}
-		return $text_stack[0];
-	}
-
-
-	function doBlockQuotes($text) {
-		$text = preg_replace_callback('/
-			  (								# Wrap whole match in $1
-				(?>
-				  ^[ ]*>[ ]?			# ">" at the start of a line
-					.+\n					# rest of the first line
-				  (.+\n)*					# subsequent consecutive lines
-				  \n*						# blanks
-				)+
-			  )
-			/xm',
-			array(&$this, '_doBlockQuotes_callback'), $text);
-
-		return $text;
-	}
-	function _doBlockQuotes_callback($matches) {
-		$bq = $matches[1];
-		# trim one level of quoting - trim whitespace-only lines
-		$bq = preg_replace('/^[ ]*>[ ]?|^[ ]+$/m', '', $bq);
-		$bq = $this->runBlockGamut($bq);		# recurse
-
-		$bq = preg_replace('/^/m', "  ", $bq);
-		# 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);
-
-		return "\n". $this->hashBlock("<blockquote>\n$bq\n</blockquote>")."\n\n";
-	}
-	function _doBlockQuotes_callback2($matches) {
-		$pre = $matches[1];
-		$pre = preg_replace('/^  /m', '', $pre);
-		return $pre;
-	}
-
-
-	function formParagraphs($text) {
-	#
-	#	Params:
-	#		$text - string to process with html <p> tags
-	#
-		# Strip leading and trailing lines:
-		$text = preg_replace('/\A\n+|\n+\z/', '', $text);
-
-		$grafs = preg_split('/\n{2,}/', $text, -1, PREG_SPLIT_NO_EMPTY);
-
-		#
-		# Wrap <p> tags and unhashify HTML blocks
-		#
-		foreach ($grafs as $key => $value) {
-			if (!preg_match('/^B\x1A[0-9]+B$/', $value)) {
-				# Is a paragraph.
-				$value = $this->runSpanGamut($value);
-				$value = preg_replace('/^([ ]*)/', "<p>", $value);
-				$value .= "</p>";
-				$grafs[$key] = $this->unhash($value);
-			}
-			else {
-				# Is a block.
-				# Modify elements of @grafs in-place...
-				$graf = $value;
-				$block = $this->html_hashes[$graf];
-				$graf = $block;
-//				if (preg_match('{
-//					\A
-//					(							# $1 = <div> tag
-//					  <div  \s+
-//					  [^>]*
-//					  \b
-//					  markdown\s*=\s*  ([\'"])	#	$2 = attr quote char
-//					  1
-//					  \2
-//					  [^>]*
-//					  >
-//					)
-//					(							# $3 = contents
-//					.*
-//					)
-//					(</div>)					# $4 = closing tag
-//					\z
-//					}xs', $block, $matches))
-//				{
-//					list(, $div_open, , $div_content, $div_close) = $matches;
-//
-//					# 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);
-//					}
-//
-//					$div_open = preg_replace(
-//						'{\smarkdown\s*=\s*([\'"]).+?\1}', '', $div_open);
-//
-//					$graf = $div_open . "\n" . $div_content . "\n" . $div_close;
-//				}
-				$grafs[$key] = $graf;
-			}
-		}
-
-		return implode("\n\n", $grafs);
-	}
-
-
-	function encodeAttribute($text) {
-	#
-	# Encode text for a double-quoted HTML attribute. This function
-	# is *not* suitable for attributes enclosed in single quotes.
-	#
-		$text = $this->encodeAmpsAndAngles($text);
-		$text = str_replace('"', '&quot;', $text);
-		return $text;
-	}
-	
-	
-	function encodeAmpsAndAngles($text) {
-	#
-	# 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.
-	#
-		if ($this->no_entities) {
-			$text = str_replace('&', '&amp;', $text);
-		} 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+);)/', 
-								'&amp;', $text);;
-		}
-		# Encode remaining <'s
-		$text = str_replace('<', '&lt;', $text);
-
-		return $text;
-	}
-
-
-	function doAutoLinks($text) {
-		$text = preg_replace_callback('{<((https?|ftp|dict):[^\'">\s]+)>}i', 
-			array(&$this, '_doAutoLinks_url_callback'), $text);
-
-		# Email addresses: <address@domain.foo>
-		$text = preg_replace_callback('{
-			<
-			(?:mailto:)?
-			(
-				(?:
-					[-!#$%&\'*+/=?^_`.{|}~\w\x80-\xFF]+
-				|
-					".*?"
-				)
-				\@
-				(?:
-					[-a-z0-9\x80-\xFF]+(\.[-a-z0-9\x80-\xFF]+)*\.[a-z]+
-				|
-					\[[\d.a-fA-F:]+\]	# IPv4 & IPv6
-				)
-			)
-			>
-			}xi',
-			array(&$this, '_doAutoLinks_email_callback'), $text);
-
-		return $text;
-	}
-	function _doAutoLinks_url_callback($matches) {
-		$url = $this->encodeAttribute($matches[1]);
-		$link = "<a href=\"$url\">$url</a>";
-		return $this->hashPart($link);
-	}
-	function _doAutoLinks_email_callback($matches) {
-		$address = $matches[1];
-		$link = $this->encodeEmailAddress($address);
-		return $this->hashPart($link);
-	}
-
-
-	function encodeEmailAddress($addr) {
-	#
-	#	Input: an email address, e.g. "foo@example.com"
-	#
-	#	Output: the email address as a mailto link, with each character
-	#		of the address encoded as either a decimal or hex entity, in
-	#		the hopes of foiling most address harvesting spam bots. E.g.:
-	#
-	#	  <p><a href="&#109;&#x61;&#105;&#x6c;&#116;&#x6f;&#58;&#x66;o&#111;
-	#        &#x40;&#101;&#x78;&#97;&#x6d;&#112;&#x6c;&#101;&#46;&#x63;&#111;
-	#        &#x6d;">&#x66;o&#111;&#x40;&#101;&#x78;&#97;&#x6d;&#112;&#x6c;
-	#        &#101;&#46;&#x63;&#111;&#x6d;</a></p>
-	#
-	#	Based by a filter by Matthew Wickline, posted to BBEdit-Talk.
-	#   With some optimizations by Milian Wolff.
-	#
-		$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.
-			if ($ord < 128) {
-				$r = ($seed * (1 + $key)) % 100; # Pseudo-random function.
-				# roughly 10% raw, 45% hex, 45% dec
-				# '@' *must* be encoded. I insist.
-				if ($r > 90 && $char != '@') /* do nothing */;
-				else if ($r < 45) $chars[$key] = '&#x'.dechex($ord).';';
-				else              $chars[$key] = '&#'.$ord.';';
-			}
-		}
-		
-		$addr = implode('', $chars);
-		$text = implode('', array_slice($chars, 7)); # text without `mailto:`
-		$addr = "<a href=\"$addr\">$text</a>";
-
-		return $addr;
-	}
-
-
-	function parseSpan($str) {
-	#
-	# Take the string $str and parse it into tokens, hashing embeded HTML,
-	# escaped characters and handling code spans.
-	#
-		$output = '';
-		
-		$span_re = '{
-				(
-					\\\\'.$this->escape_chars_re.'
-				|
-					(?<![`\\\\])
-					`+						# code span marker
-			'.( $this->no_markup ? '' : '
-				|
-					<!--    .*?     -->		# comment
-				|
-					<\?.*?\?> | <%.*?%>		# processing instruction
-				|
-					<[/!$]?[-a-zA-Z0-9:_]+	# regular tags
-					(?>
-						\s
-						(?>[^"\'>]+|"[^"]*"|\'[^\']*\')*
-					)?
-					>
-			').'
-				)
-				}xs';
-
-		while (1) {
-			#
-			# 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]);
-				$str = $parts[2];
-			}
-			else {
-				break;
-			}
-		}
-		
-		return $output;
-	}
-	
-	
-	function handleSpanToken($token, &$str) {
-	#
-	# Handle $token provided by parseSpan by determining its nature and 
-	# returning the corresponding value that should replace it.
-	#
-		switch ($token{0}) {
-			case "\\":
-				return $this->hashPart("&#". ord($token{1}). ";");
-			case "`":
-				# Search for end marker in remaining text.
-				if (preg_match('/^(.*?[^`])'.preg_quote($token).'(?!`)(.*)$/sm', 
-					$str, $matches))
-				{
-					$str = $matches[2];
-					$codespan = $this->makeCodeSpan($matches[1]);
-					return $this->hashPart($codespan);
-				}
-				return $token; // return as text since no ending marker found.
-			default:
-				return $this->hashPart($token);
-		}
-	}
-
-
-	function outdent($text) {
-	#
-	# Remove one level of line-leading tabs or spaces
-	#
-		return preg_replace('/^(\t|[ ]{1,'.$this->tab_width.'})/m', '', $text);
-	}
-
-
-	# 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 
-		# appropriate number of space between each blocks.
-		
-		$text = preg_replace_callback('/^.*\t.*$/m',
-			array(&$this, '_detab_callback'), $text);
-
-		return $text;
-	}
-	function _detab_callback($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.
-		$line = $blocks[0];
-		unset($blocks[0]); # Do not add first block twice.
-		foreach ($blocks as $block) {
-			# Calculate amount of space, insert spaces, insert block.
-			$amount = $this->tab_width - 
-				$strlen($line, 'UTF-8') % $this->tab_width;
-			$line .= str_repeat(" ", $amount) . $block;
-		}
-		return $line;
-	}
-	function _initDetab() {
-	#
-	# Check for the availability of the function in the `utf8_strlen` property
-	# (initially `mb_strlen`). If the function is not available, create a 
-	# function that will loosely count the number of UTF-8 characters with a
-	# regular expression.
-	#
-		if (function_exists($this->utf8_strlen)) return;
-		$this->utf8_strlen = create_function('$text', 'return preg_match_all(
-			"/[\\\\x00-\\\\xBF]|[\\\\xC0-\\\\xFF][\\\\x80-\\\\xBF]*/", 
-			$text, $m);');
-	}
-
-
-	function unhash($text) {
-	#
-	# Swap back in all the tags hashed by _HashHTMLBlocks.
-	#
-		return preg_replace_callback('/(.)\x1A[0-9]+\1/', 
-			array(&$this, '_unhash_callback'), $text);
-	}
-	function _unhash_callback($matches) {
-		return $this->html_hashes[$matches[0]];
-	}
-
-}
-
-
-#
-# Markdown Extra Parser Class
-#
-
-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;
-	
-	# Predefined abbreviations.
-	var $predef_abbr = array();
-
-
-	function MarkdownExtra_Parser() {
-	#
-	# Constructor function. Initialize the parser object.
-	#
-		# Add extra escapable characters before parent constructor 
-		# initialize the table.
-		$this->escape_chars .= ':|';
-		
-		# Insert extra document, block, and span transformations. 
-		# Parent constructor will do the sorting.
-		$this->document_gamut += array(
-			"doFencedCodeBlocks" => 5,
-			"stripFootnotes"     => 15,
-			"stripAbbreviations" => 25,
-			"appendFootnotes"    => 50,
-			);
-		$this->block_gamut += array(
-			"doFencedCodeBlocks" => 5,
-			"doTables"           => 15,
-			"doDefLists"         => 45,
-			);
-		$this->span_gamut += array(
-			"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 .= '|';
-			$this->abbr_word_re .= preg_quote($abbr_word);
-			$this->abbr_desciptions[$abbr_word] = trim($abbr_desc);
-		}
-	}
-	
-	function teardown() {
-	#
-	# Clearing Extra-specific variables.
-	#
-		$this->footnotes = array();
-		$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 
-	# 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) {
-	#
-	# Hashify HTML Blocks and "clean tags".
-	#
-	# We only want to do this for block-level HTML tags, such as headers,
-	# lists, and tables. That's because we still want to wrap <p>s around
-	# "paragraphs" that are wrapped in non-block-level tags, such as anchors,
-	# phrase emphasis, and spans. The list of tags we're looking for is
-	# hard-coded.
-	#
-	# This works by calling _HashHTMLBlocks_InMarkdown, which then calls
-	# _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!
-	#
-		#
-		# Call the HTML-in-Markdown hasher.
-		#
-		list($text, ) = $this->_hashHTMLBlocks_inMarkdown($text);
-		
-		return $text;
-	}
-	function _hashHTMLBlocks_inMarkdown($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 
-	#     account, something like this (which looks right) won't work as expected:
-	#
-	#     <div>
-	#         <div markdown="1">
-	#         Hello World.  <-- Is this a Markdown code block or text?
-	#         </div>  <-- Is this a Markdown code block or a real tag?
-	#     <div>
-	#
-	#     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 
-	#     tag with that name. Nested tags supported.
-	#
-	# *   If $span is true, text inside must treated as span. So any double 
-	#     newline will be replaced by a single newline so that it does not create 
-	#     paragraphs.
-	#
-	# Returns an array of that form: ( processed text , remaining text )
-	#
-		if ($text === '') return array('', '');
-
-		# Regex to check for the presense of newlines around a block tag.
-		$newline_before_re = '/(?:^\n?|\n\n)*$/';
-		$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 =
-			'{
-				(					# $2: Capture hole tag.
-					</?					# Any opening or closing tag.
-						(?>				# Tag name.
-							'.$this->block_tags_re.'			|
-							'.$this->context_block_tags_re.'	|
-							'.$this->clean_tags_re.'        	|
-							(?!\s)'.$enclosing_tag_re.'
-						)
-						(?:
-							(?=[\s"\'/a-zA-Z0-9])	# Allowed characters after tag name.
-							(?>
-								".*?"		|	# Double quotes (can contain `>`)
-								\'.*?\'   	|	# Single quotes (can contain `>`)
-								.+?				# Anything but quotes and `>`.
-							)*?
-						)?
-					>					# End of tag.
-				|
-					<!--    .*?     -->	# HTML Comment
-				|
-					<\?.*?\?> | <%.*?%>	# Processing instruction
-				|
-					<!\[CDATA\[.*?\]\]>	# CData Block
-				|
-					# Code span marker
-					`+
-				'. ( !$span ? ' # If not in span.
-				|
-					# Indented code block
-					(?: ^[ ]*\n | ^ | \n[ ]*\n )
-					[ ]{'.($indent+4).'}[^\n]* \n
-					(?>
-						(?: [ ]{'.($indent+4).'}[^\n]* | [ ]* ) \n
-					)*
-				|
-					# Fenced code block marker
-					(?> ^ | \n )
-					[ ]{0,'.($indent).'}~~~+[ ]*\n
-				' : '' ). ' # End (if not is span).
-				)
-			}xs';
-
-		
-		$depth = 0;		# Current depth inside the tag tree.
-		$parsed = "";	# Parsed text that will be returned.
-
-		#
-		# Loop through every tag until we find the closing tag of the parent
-		# or loop until reaching the end of text if no parent tag specified.
-		#
-		do {
-			#
-			# 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 
-			# by the pattern.
-			#
-			$parts = preg_split($block_tag_re, $text, 2, 
-								PREG_SPLIT_DELIM_CAPTURE);
-			
-			# If in Markdown span mode, add a empty-string span-level hash 
-			# after each newline to prevent triggering any block element.
-			if ($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
-			#
-			if ($tag{0} == "`") {
-				# Find corresponding end marker.
-				$tag_re = preg_quote($tag);
-				if (preg_match('{^(?>.+?|\n(?!\n))*?(?<!`)'.$tag_re.'(?!`)}',
-					$text, $matches))
-				{
-					# End marker found: pass text unchanged until marker.
-					$parsed .= $tag . $matches[0];
-					$text = substr($text, strlen($matches[0]));
-				}
-				else {
-					# Unmatched marker: just skip it.
-					$parsed .= $tag;
-				}
-			}
-			#
-			# Check for: Fenced code block marker.
-			#
-			else if (preg_match('{^\n?[ ]{0,'.($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 {
-					# 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 .= $tag;
-			}
-			#
-			# Check for: Opening Block level tag or
-			#            Opening Context Block tag (like ins and del) 
-			#               used as a block tag (tag is alone on it's line).
-			#
-			else if (preg_match('{^<(?:'.$this->block_tags_re.')\b}', $tag) ||
-				(	preg_match('{^<(?:'.$this->context_block_tags_re.')\b}', $tag) &&
-					preg_match($newline_before_re, $parsed) &&
-					preg_match($newline_after_re, $text)	)
-				)
-			{
-				# Need to parse tag and following text using the HTML parser.
-				list($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";
-			}
-			#
-			# Check for: Clean tag (like script, math)
-			#            HTML Comments, processing instructions.
-			#
-			else if (preg_match('{^<(?:'.$this->clean_tags_re.')\b}', $tag) ||
-				$tag{1} == '!' || $tag{1} == '?')
-			{
-				# Need to parse tag and following text using the HTML parser.
-				# (don't check for markdown attribute)
-				list($block_text, $text) = 
-					$this->_hashHTMLBlocks_inHTML($tag . $text, "hashClean", false);
-				
-				$parsed .= $block_text;
-			}
-			#
-			# Check for: Tag with same name as enclosing tag.
-			#
-			else if ($enclosing_tag_re !== '' &&
-				# Same name as enclosing tag.
-				preg_match('{^</?(?:'.$enclosing_tag_re.')\b}', $tag))
-			{
-				#
-				# Increase/decrease nested tag count.
-				#
-				if ($tag{1} == '/')						$depth--;
-				else if ($tag{strlen($tag)-2} != '/')	$depth++;
-
-				if ($depth < 0) {
-					#
-					# Going out of parent element. Clean up and break so we
-					# return to the calling function.
-					#
-					$text = $tag . $text;
-					break;
-				}
-				
-				$parsed .= $tag;
-			}
-			else {
-				$parsed .= $tag;
-			}
-		} while ($depth >= 0);
-		
-		return array($parsed, $text);
-	}
-	function _hashHTMLBlocks_inHTML($text, $hash_method, $md_attr) {
-	#
-	# Parse HTML, calling _HashHTMLBlocks_InMarkdown for block tags.
-	#
-	# *   Calls $hash_method to convert any blocks.
-	# *   Stops when the first opening tag closes.
-	# *   $md_attr indicate if the use of the `markdown="1"` attribute is allowed.
-	#     (it is not inside clean tags)
-	#
-	# Returns an array of that form: ( processed text , remaining text )
-	#
-		if ($text === '') return array('', '');
-		
-		# Regex to match `markdown` attribute inside of a tag.
-		$markdown_attr_re = '
-			{
-				\s*			# Eat whitespace before the `markdown` attribute
-				markdown
-				\s*=\s*
-				(?>
-					(["\'])		# $1: quote delimiter		
-					(.*?)		# $2: attribute value
-					\1			# matching delimiter	
-				|
-					([^\s>]*)	# $3: unquoted attribute value
-				)
-				()				# $4: make $3 always defined (avoid warnings)
-			}xs';
-		
-		# Regex to match any tag.
-		$tag_re = '{
-				(					# $2: Capture hole tag.
-					</?					# Any opening or closing tag.
-						[\w:$]+			# Tag name.
-						(?:
-							(?=[\s"\'/a-zA-Z0-9])	# Allowed characters after tag name.
-							(?>
-								".*?"		|	# Double quotes (can contain `>`)
-								\'.*?\'   	|	# Single quotes (can contain `>`)
-								.+?				# Anything but quotes and `>`.
-							)*?
-						)?
-					>					# End of tag.
-				|
-					<!--    .*?     -->	# HTML Comment
-				|
-					<\?.*?\?> | <%.*?%>	# Processing instruction
-				|
-					<!\[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.
-
-		#
-		# Get the name of the starting tag.
-		# (This pattern makes $base_tag_name_re safe without quoting.)
-		#
-		if (preg_match('/^<([\w:$]*)\b/', $text, $matches))
-			$base_tag_name_re = $matches[1];
-
-		#
-		# Loop through every tag until we find the corresponding closing tag.
-		#
-		do {
-			#
-			# 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 
-			# by the pattern.
-			#
-			$parts = preg_split($tag_re, $text, 2, PREG_SPLIT_DELIM_CAPTURE);
-			
-			if (count($parts) < 3) {
-				#
-				# End of $text reached with unbalenced tag(s).
-				# In that case, we return original text unchanged and pass the
-				# first character as filtered to prevent an infinite loop in the 
-				# parent function.
-				#
-				return array($original_text{0}, substr($original_text, 1));
-			}
-			
-			$block_text .= $parts[0]; # Text before current tag.
-			$tag         = $parts[1]; # Tag to handle.
-			$text        = $parts[2]; # Remaining text after current tag.
-			
-			#
-			# Check for: Auto-close tag (like <hr/>)
-			#			 Comments and Processing Instructions.
-			#
-			if (preg_match('{^</?(?:'.$this->auto_close_tags_re.')\b}', $tag) ||
-				$tag{1} == '!' || $tag{1} == '?')
-			{
-				# Just add the tag to the block as if it was text.
-				$block_text .= $tag;
-			}
-			else {
-				#
-				# Increase/decrease nested tag count. Only do so if
-				# the tag's name match base tag's.
-				#
-				if (preg_match('{^</?'.$base_tag_name_re.'\b}', $tag)) {
-					if ($tag{1} == '/')						$depth--;
-					else if ($tag{strlen($tag)-2} != '/')	$depth++;
-				}
-				
-				#
-				# Check for `markdown="1"` attribute and handle it.
-				#
-				if ($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;
-						$indent = $strlen($matches[1], 'UTF-8');
-					} 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, 
-							$tag_name_re, $span_mode);
-					
-					# Outdent markdown text.
-					if ($indent > 0) {
-						$block_text = preg_replace("/^[ ]{1,$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, $text);
-	}
-
-
-	function hashClean($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, 
-	# blocking invalid nested overlap.
-	#
-		return $this->hashPart($text, 'C');
-	}
-
-
-	function doHeaders($text) {
-	#
-	# Redefined to add id attribute support.
-	#
-		# Setext-style headers:
-		#	  Header 1  {#header1}
-		#	  ========
-		#  
-		#	  Header 2  {#header2}
-		#	  --------
-		#
-		$text = preg_replace_callback(
-			'{
-				(^.+?)								# $1: Header text
-				(?:[ ]+\{\#([-_:a-zA-Z0-9]+)\})?	# $2: Id attribute
-				[ ]*\n(=+|-+)[ ]*\n+				# $3: Header footer
-			}mx',
-			array(&$this, '_doHeaders_callback_setext'), $text);
-
-		# atx-style headers:
-		#	# Header 1        {#header1}
-		#	## Header 2       {#header2}
-		#	## Header 2 with closing hashes ##  {#header3}
-		#	...
-		#	###### Header 6   {#header2}
-		#
-		$text = preg_replace_callback('{
-				^(\#{1,6})	# $1 = string of #\'s
-				[ ]*
-				(.+?)		# $2 = Header text
-				[ ]*
-				\#*			# optional closing #\'s (not counted)
-				(?:[ ]+\{\#([-_:a-zA-Z0-9]+)\})? # id attribute
-				[ ]*
-				\n+
-			}xm',
-			array(&$this, '_doHeaders_callback_atx'), $text);
-
-		return $text;
-	}
-	function _doHeaders_attr($attr) {
-		if (empty($attr))  return "";
-		return " id=\"$attr\"";
-	}
-	function _doHeaders_callback_setext($matches) {
-		if ($matches[3] == '-' && preg_match('{^- }', $matches[1]))
-			return $matches[0];
-		$level = $matches[3]{0} == '=' ? 1 : 2;
-		$attr  = $this->_doHeaders_attr($id =& $matches[2]);
-		$block = "<h$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]);
-		$block = "<h$level$attr>".$this->runSpanGamut($matches[2])."</h$level>";
-		return "\n" . $this->hashBlock($block) . "\n\n";
-	}
-
-
-	function doTables($text) {
-	#
-	# Form HTML tables.
-	#
-		$less_than_tab = $this->tab_width - 1;
-		#
-		# Find tables with leading pipe.
-		#
-		#	| Header 1 | Header 2
-		#	| -------- | --------
-		#	| Cell 1   | Cell 2
-		#	| Cell 3   | Cell 4
-		#
-		$text = preg_replace_callback('
-			{
-				^							# Start of a line
-				[ ]{0,'.$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
-				
-				(							# $3: Cells
-					(?>
-						[ ]*				# Allowed whitespace.
-						[|] .* \n			# Row content.
-					)*
-				)
-				(?=\n|\Z)					# Stop at final double newline.
-			}xm',
-			array(&$this, '_doTable_leadingPipe_callback'), $text);
-		
-		#
-		# Find tables without leading pipe.
-		#
-		#	Header 1 | Header 2
-		#	-------- | --------
-		#	Cell 1   | Cell 2
-		#	Cell 3   | Cell 4
-		#
-		$text = preg_replace_callback('
-			{
-				^							# Start of a line
-				[ ]{0,'.$less_than_tab.'}	# Allowed whitespace.
-				(\S.*[|].*) \n				# $1: Header row (at least one pipe)
-				
-				[ ]{0,'.$less_than_tab.'}	# Allowed whitespace.
-				([-:]+[ ]*[|][-| :]*) \n	# $2: Header underline
-				
-				(							# $3: Cells
-					(?>
-						.* [|] .* \n		# Row content
-					)*
-				)
-				(?=\n|\Z)					# Stop at final double newline.
-			}xm',
-			array(&$this, '_DoTable_callback'), $text);
-
-		return $text;
-	}
-	function _doTable_leadingPipe_callback($matches) {
-		$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) {
-		$head		= $matches[1];
-		$underline	= $matches[2];
-		$content	= $matches[3];
-
-		# Remove any tailing pipes for each line.
-		$head		= preg_replace('/[|] *$/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 => $s) {
-			if (preg_match('/^ *-+: *$/', $s))		$attr[$n] = ' align="right"';
-			else if (preg_match('/^ *:-+: *$/', $s))$attr[$n] = ' align="center"';
-			else if (preg_match('/^ *:-+ *$/', $s))	$attr[$n] = ' align="left"';
-			else									$attr[$n] = '';
-		}
-		
-		# 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";
-		$text .= "<tr>\n";
-		foreach ($headers as $n => $header)
-			$text .= "  <th$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, 
-			# 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";
-			$text .= "</tr>\n";
-		}
-		$text .= "</tbody>\n";
-		$text .= "</table>";
-		
-		return $this->hashBlock($text) . "\n";
-	}
-
-	
-	function doDefLists($text) {
-	#
-	# Form HTML definition lists.
-	#
-		$less_than_tab = $this->tab_width - 1;
-
-		# Re-usable pattern to match any entire dl list:
-		$whole_list_re = '(?>
-			(								# $1 = whole list
-			  (								# $2
-				[ ]{0,'.$less_than_tab.'}
-				((?>.*\S.*\n)+)				# $3 = defined term
-				\n?
-				[ ]{0,'.$less_than_tab.'}:[ ]+ # colon starting definition
-			  )
-			  (?s:.+?)
-			  (								# $4
-				  \z
-				|
-				  \n{2,}
-				  (?=\S)
-				  (?!						# Negative lookahead for another term
-					[ ]{0,'.$less_than_tab.'}
-					(?: \S.*\n )+?			# defined term
-					\n?
-					[ ]{0,'.$less_than_tab.'}:[ ]+ # colon starting definition
-				  )
-				  (?!						# Negative lookahead for another definition
-					[ ]{0,'.$less_than_tab.'}:[ ]+ # colon starting definition
-				  )
-			  )
-			)
-		)'; // mx
-
-		$text = preg_replace_callback('{
-				(?>\A\n?|(?<=\n\n))
-				'.$whole_list_re.'
-			}mx',
-			array(&$this, '_doDefLists_callback'), $text);
-
-		return $text;
-	}
-	function _doDefLists_callback($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));
-		$result = "<dl>\n" . $result . "\n</dl>";
-		return $this->hashBlock($result) . "\n\n";
-	}
-
-
-	function processDefListItems($list_str) {
-	#
-	#	Process the contents of a single definition list, splitting it
-	#	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);
-
-		# Process definition terms.
-		$list_str = preg_replace_callback('{
-			(?>\A\n?|\n\n+)					# leading line
-			(								# definition terms = $1
-				[ ]{0,'.$less_than_tab.'}	# leading whitespace
-				(?![:][ ]|[ ])				# negative lookahead for a definition 
-											#   mark (colon) or more whitespace.
-				(?> \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);
-
-		# Process actual definitions.
-		$list_str = preg_replace_callback('{
-			\n(\n+)?						# leading line = $1
-			(								# marker space = $2
-				[ ]{0,'.$less_than_tab.'}	# whitespace before colon
-				[:][ ]+						# definition mark (colon)
-			)
-			((?s:.+?))						# definition text = $3
-			(?= \n+ 						# stop at next definition mark,
-				(?:							# next term or end of text
-					[ ]{0,'.$less_than_tab.'} [:][ ]	|
-					<dt> | \z
-				)						
-			)					
-			}xm',
-			array(&$this, '_processDefListItems_callback_dd'), $list_str);
-
-		return $list_str;
-	}
-	function _processDefListItems_callback_dt($matches) {
-		$terms = explode("\n", trim($matches[1]));
-		$text = '';
-		foreach ($terms as $term) {
-			$term = $this->runSpanGamut(trim($term));
-			$text .= "\n<dt>" . $term . "</dt>";
-		}
-		return $text . "\n";
-	}
-	function _processDefListItems_callback_dd($matches) {
-		$leading_line	= $matches[1];
-		$marker_space	= $matches[2];
-		$def			= $matches[3];
-
-		if ($leading_line || preg_match('/\n{2,}/', $def)) {
-			# Replace marker with the appropriate whitespace indentation
-			$def = str_repeat(' ', strlen($marker_space)) . $def;
-			$def = $this->runBlockGamut($this->outdent($def . "\n\n"));
-			$def = "\n". $def ."\n";
-		}
-		else {
-			$def = rtrim($def);
-			$def = $this->runSpanGamut($this->outdent($def));
-		}
-
-		return "\n<dd>" . $def . "</dd>\n";
-	}
-
-
-	function doFencedCodeBlocks($text) {
-	#
-	# Adding the fenced code block syntax to regular Markdown:
-	#
-	# ~~~
-	# Code block
-	# ~~~
-	#
-		$less_than_tab = $this->tab_width;
-		
-		$text = preg_replace_callback('{
-				(?:\n|\A)
-				# 1: Opening marker
-				(
-					~{3,} # Marker: three tilde or more.
-				)
-				[ ]* \n # Whitespace and newline following marker.
-				
-				# 2: Content
-				(
-					(?>
-						(?!\1 [ ]* \n)	# Not a closing marker.
-						.*\n+
-					)+
-				)
-				
-				# Closing marker.
-				\1 [ ]* \n
-			}xm',
-			array(&$this, '_doFencedCodeBlocks_callback'), $text);
-
-		return $text;
-	}
-	function _doFencedCodeBlocks_callback($matches) {
-		$codeblock = $matches[2];
-		$codeblock = htmlspecialchars($codeblock, ENT_NOQUOTES);
-		$codeblock = preg_replace_callback('/^\n+/',
-			array(&$this, '_doFencedCodeBlocks_newlines'), $codeblock);
-		$codeblock = "<pre><code>$codeblock</code></pre>";
-		return "\n\n".$this->hashBlock($codeblock)."\n\n";
-	}
-	function _doFencedCodeBlocks_newlines($matches) {
-		return str_repeat("<br$this->empty_element_suffix", 
-			strlen($matches[0]));
-	}
-
-
-	#
-	# Redefining emphasis markers so that emphasis by underscore does not
-	# work in the middle of a word.
-	#
-	var $em_relist = array(
-		''  => '(?:(?<!\*)\*(?!\*)|(?<![a-zA-Z0-9_])_(?!_))(?=\S|$)(?![\.,:;]\s)',
-		'*' => '(?<=\S|^)(?<!\*)\*(?!\*)',
-		'_' => '(?<=\S|^)(?<!_)_(?![a-zA-Z0-9_])',
-		);
-	var $strong_relist = array(
-		''   => '(?:(?<!\*)\*\*(?!\*)|(?<![a-zA-Z0-9_])__(?!_))(?=\S|$)(?![\.,:;]\s)',
-		'**' => '(?<=\S|^)(?<!\*)\*\*(?!\*)',
-		'__' => '(?<=\S|^)(?<!_)__(?![a-zA-Z0-9_])',
-		);
-	var $em_strong_relist = array(
-		''    => '(?:(?<!\*)\*\*\*(?!\*)|(?<![a-zA-Z0-9_])___(?!_))(?=\S|$)(?![\.,:;]\s)',
-		'***' => '(?<=\S|^)(?<!\*)\*\*\*(?!\*)',
-		'___' => '(?<=\S|^)(?<!_)___(?![a-zA-Z0-9_])',
-		);
-
-
-	function formParagraphs($text) {
-	#
-	#	Params:
-	#		$text - string to process with html <p> tags
-	#
-		# Strip leading and trailing lines:
-		$text = preg_replace('/\A\n+|\n+\z/', '', $text);
-		
-		$grafs = preg_split('/\n{2,}/', $text, -1, PREG_SPLIT_NO_EMPTY);
-
-		#
-		# Wrap <p> tags and unhashify HTML blocks
-		#
-		foreach ($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. 
-		$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
-	# hash references.
-	#
-		$less_than_tab = $this->tab_width - 1;
-
-		# Link defs are in the form: [^id]: url "optional title"
-		$text = preg_replace_callback('{
-			^[ ]{0,'.$less_than_tab.'}\[\^(.+?)\][ ]?:	# note_id = $1
-			  [ ]*
-			  \n?					# maybe *one* newline
-			(						# text = $2 (no blank lines allowed)
-				(?:					
-					.+				# actual text
-				|
-					\n				# newlines but 
-					(?!\[\^.+?\]:\s)# negative lookahead for footnote marker.
-					(?!\n+[ ]{0,3}\S)# ensure line is not blank and followed 
-									# by non-indented content
-				)*
-			)		
-			}xm',
-			array(&$this, '_stripFootnotes_callback'),
-			$text);
-		return $text;
-	}
-	function _stripFootnotes_callback($matches) {
-		$note_id = $this->fn_id_prefix . $matches[1];
-		$this->footnotes[$note_id] = $this->outdent($matches[2]);
-		return ''; # String that will replace the block
-	}
-
-
-	function doFootnotes($text) {
-	#
-	# 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) {
-			$text = preg_replace('{\[\^(.+?)\]}', "F\x1Afn:\\1\x1A:", $text);
-		}
-		return $text;
-	}
-
-	
-	function appendFootnotes($text) {
-	#
-	# Append footnote list to text.
-	#
-		$text = preg_replace_callback('{F\x1Afn:(.*?)\x1A:}', 
-			array(&$this, '_appendFootnotes_callback'), $text);
-	
-		if (!empty($this->footnotes_ordered)) {
-			$text .= "\n\n";
-			$text .= "<div class=\"footnotes\">\n";
-			$text .= "<hr". $this->empty_element_suffix ."\n";
-			$text .= "<ol>\n\n";
-			
-			$attr = " rev=\"footnote\"";
-			if ($this->fn_backlink_class != "") {
-				$class = $this->fn_backlink_class;
-				$class = $this->encodeAttribute($class);
-				$attr .= " class=\"$class\"";
-			}
-			if ($this->fn_backlink_title != "") {
-				$title = $this->fn_backlink_title;
-				$title = $this->encodeAttribute($title);
-				$attr .= " title=\"$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");				
-				$footnote = preg_replace_callback('{F\x1Afn:(.*?)\x1A:}', 
-					array(&$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)) {
-					$footnote = substr($footnote, 0, -4) . "&#160;$backlink</p>";
-				} 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>";
-		}
-		return $text;
-	}
-	function _appendFootnotes_callback($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 != "") {
-				$class = $this->fn_link_class;
-				$class = $this->encodeAttribute($class);
-				$attr .= " class=\"$class\"";
-			}
-			if ($this->fn_link_title != "") {
-				$title = $this->fn_link_title;
-				$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.
-	#
-		$less_than_tab = $this->tab_width - 1;
-
-		# Link defs are in the form: [id]*: url "optional title"
-		$text = preg_replace_callback('{
-			^[ ]{0,'.$less_than_tab.'}\*\[(.+?)\][ ]?:	# abbr_id = $1
-			(.*)					# text = $2 (no blank lines allowed)	
-			}xm',
-			array(&$this, '_stripAbbreviations_callback'),
-			$text);
-		return $text;
-	}
-	function _stripAbbreviations_callback($matches) {
-		$abbr_word = $matches[1];
-		$abbr_desc = $matches[2];
-		if ($this->abbr_word_re)
-			$this->abbr_word_re .= '|';
-		$this->abbr_word_re .= preg_quote($abbr_word);
-		$this->abbr_desciptions[$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 
-			// contain significant spaces:
-			$text = preg_replace_callback('{'.
-				'(?<![\w\x1A])'.
-				'(?:'.$this->abbr_word_re.')'.
-				'(?![\w\x1A])'.
-				'}', 
-				array(&$this, '_doAbbreviations_callback'), $text);
-		}
-		return $text;
-	}
-	function _doAbbreviations_callback($matches) {
-		$abbr = $matches[0];
-		if (isset($this->abbr_desciptions[$abbr])) {
-			$desc = $this->abbr_desciptions[$abbr];
-			if (empty($desc)) {
-				return $this->hashPart("<abbr>$abbr</abbr>");
-			} else {
-				$desc = $this->encodeAttribute($desc);
-				return $this->hashPart("<abbr title=\"$desc\">$abbr</abbr>");
-			}
-		} else {
-			return $matches[0];
-		}
-	}
-
-}
-
-
-/*
-
-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 
-such as tables and definition list.
-
-Markdown is a text-to-HTML filter; it translates an easy-to-read /
-easy-to-write structured text format into HTML. Markdown's text format
-is most similar to that of plain text email, and supports features such
-as headers, *emphasis*, code blocks, blockquotes, and links.
-
-Markdown's syntax is designed not as a generic markup language, but
-specifically to serve as a front-end to (X)HTML. You can use span-level
-HTML tags anywhere in a Markdown document, and you can use block level
-HTML tags (like <div> and <table> as well).
-
-For more information about Markdown's syntax, see:
-
-<http://daringfireball.net/projects/markdown/>
-
-
-Bugs
-----
-
-To file bug reports please send email to:
-
-<michel.fortin@michelf.com>
-
-Please include with your report: (1) the example input; (2) the output you
-expected; (3) the output Markdown actually produced.
-
-
-Version History
---------------- 
-
-See the readme file for detailed release notes for this version.
-
-
-Copyright and License
----------------------
-
-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/>   
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-*	Redistributions of source code must retain the above copyright notice,
-	this list of conditions and the following disclaimer.
-
-*	Redistributions in binary form must reproduce the above copyright
-	notice, this list of conditions and the following disclaimer in the
-	documentation and/or other materials provided with the distribution.
-
-*	Neither the name "Markdown" nor the names of its contributors may
-	be used to endorse or promote products derived from this software
-	without specific prior written permission.
-
-This software is provided by the copyright holders and contributors "as
-is" and any express or implied warranties, including, but not limited
-to, the implied warranties of merchantability and fitness for a
-particular purpose are disclaimed. In no event shall the copyright owner
-or contributors be liable for any direct, indirect, incidental, special,
-exemplary, or consequential damages (including, but not limited to,
-procurement of substitute goods or services; loss of use, data, or
-profits; or business interruption) however caused and on any theory of
-liability, whether in contract, strict liability, or tort (including
-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/library/parsedown/LICENSE.txt b/library/parsedown/LICENSE.txt
new file mode 100644
index 0000000000..baca86f5b8
--- /dev/null
+++ b/library/parsedown/LICENSE.txt
@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2013 Emanuil Rusev, erusev.com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/library/parsedown/Parsedown.php b/library/parsedown/Parsedown.php
new file mode 100755
index 0000000000..9bdae2221e
--- /dev/null
+++ b/library/parsedown/Parsedown.php
@@ -0,0 +1,1528 @@
+<?php
+
+#
+#
+# Parsedown
+# http://parsedown.org
+#
+# (c) Emanuil Rusev
+# http://erusev.com
+#
+# For the full license information, view the LICENSE file that was distributed
+# with this source code.
+#
+#
+
+class Parsedown
+{
+    # ~
+
+    const version = '1.5.1';
+
+    # ~
+
+    function text($text)
+    {
+        # make sure no definitions are set
+        $this->DefinitionData = array();
+
+        # standardize line breaks
+        $text = str_replace(array("\r\n", "\r"), "\n", $text);
+
+        # remove surrounding line breaks
+        $text = trim($text, "\n");
+
+        # split text into lines
+        $lines = explode("\n", $text);
+
+        # iterate through lines to identify blocks
+        $markup = $this->lines($lines);
+
+        # trim line breaks
+        $markup = trim($markup, "\n");
+
+        return $markup;
+    }
+
+    #
+    # Setters
+    #
+
+    function setBreaksEnabled($breaksEnabled)
+    {
+        $this->breaksEnabled = $breaksEnabled;
+
+        return $this;
+    }
+
+    protected $breaksEnabled;
+
+    function setMarkupEscaped($markupEscaped)
+    {
+        $this->markupEscaped = $markupEscaped;
+
+        return $this;
+    }
+
+    protected $markupEscaped;
+
+    function setUrlsLinked($urlsLinked)
+    {
+        $this->urlsLinked = $urlsLinked;
+
+        return $this;
+    }
+
+    protected $urlsLinked = true;
+
+    #
+    # Lines
+    #
+
+    protected $BlockTypes = array(
+        '#' => array('Header'),
+        '*' => array('Rule', 'List'),
+        '+' => array('List'),
+        '-' => array('SetextHeader', 'Table', 'Rule', 'List'),
+        '0' => array('List'),
+        '1' => array('List'),
+        '2' => array('List'),
+        '3' => array('List'),
+        '4' => array('List'),
+        '5' => array('List'),
+        '6' => array('List'),
+        '7' => array('List'),
+        '8' => array('List'),
+        '9' => array('List'),
+        ':' => array('Table'),
+        '<' => array('Comment', 'Markup'),
+        '=' => array('SetextHeader'),
+        '>' => array('Quote'),
+        '[' => array('Reference'),
+        '_' => array('Rule'),
+        '`' => array('FencedCode'),
+        '|' => array('Table'),
+        '~' => array('FencedCode'),
+    );
+
+    # ~
+
+    protected $DefinitionTypes = array(
+        '[' => array('Reference'),
+    );
+
+    # ~
+
+    protected $unmarkedBlockTypes = array(
+        'Code',
+    );
+
+    #
+    # Blocks
+    #
+
+    private function lines(array $lines)
+    {
+        $CurrentBlock = null;
+
+        foreach ($lines as $line)
+        {
+            if (chop($line) === '')
+            {
+                if (isset($CurrentBlock))
+                {
+                    $CurrentBlock['interrupted'] = true;
+                }
+
+                continue;
+            }
+
+            if (strpos($line, "\t") !== false)
+            {
+                $parts = explode("\t", $line);
+
+                $line = $parts[0];
+
+                unset($parts[0]);
+
+                foreach ($parts as $part)
+                {
+                    $shortage = 4 - mb_strlen($line, 'utf-8') % 4;
+
+                    $line .= str_repeat(' ', $shortage);
+                    $line .= $part;
+                }
+            }
+
+            $indent = 0;
+
+            while (isset($line[$indent]) and $line[$indent] === ' ')
+            {
+                $indent ++;
+            }
+
+            $text = $indent > 0 ? substr($line, $indent) : $line;
+
+            # ~
+
+            $Line = array('body' => $line, 'indent' => $indent, 'text' => $text);
+
+            # ~
+
+            if (isset($CurrentBlock['incomplete']))
+            {
+                $Block = $this->{'block'.$CurrentBlock['type'].'Continue'}($Line, $CurrentBlock);
+
+                if (isset($Block))
+                {
+                    $CurrentBlock = $Block;
+
+                    continue;
+                }
+                else
+                {
+                    if (method_exists($this, 'block'.$CurrentBlock['type'].'Complete'))
+                    {
+                        $CurrentBlock = $this->{'block'.$CurrentBlock['type'].'Complete'}($CurrentBlock);
+                    }
+
+                    unset($CurrentBlock['incomplete']);
+                }
+            }
+
+            # ~
+
+            $marker = $text[0];
+
+            # ~
+
+            $blockTypes = $this->unmarkedBlockTypes;
+
+            if (isset($this->BlockTypes[$marker]))
+            {
+                foreach ($this->BlockTypes[$marker] as $blockType)
+                {
+                    $blockTypes []= $blockType;
+                }
+            }
+
+            #
+            # ~
+
+            foreach ($blockTypes as $blockType)
+            {
+                $Block = $this->{'block'.$blockType}($Line, $CurrentBlock);
+
+                if (isset($Block))
+                {
+                    $Block['type'] = $blockType;
+
+                    if ( ! isset($Block['identified']))
+                    {
+                        $Blocks []= $CurrentBlock;
+
+                        $Block['identified'] = true;
+                    }
+
+                    if (method_exists($this, 'block'.$blockType.'Continue'))
+                    {
+                        $Block['incomplete'] = true;
+                    }
+
+                    $CurrentBlock = $Block;
+
+                    continue 2;
+                }
+            }
+
+            # ~
+
+            if (isset($CurrentBlock) and ! isset($CurrentBlock['type']) and ! isset($CurrentBlock['interrupted']))
+            {
+                $CurrentBlock['element']['text'] .= "\n".$text;
+            }
+            else
+            {
+                $Blocks []= $CurrentBlock;
+
+                $CurrentBlock = $this->paragraph($Line);
+
+                $CurrentBlock['identified'] = true;
+            }
+        }
+
+        # ~
+
+        if (isset($CurrentBlock['incomplete']) and method_exists($this, 'block'.$CurrentBlock['type'].'Complete'))
+        {
+            $CurrentBlock = $this->{'block'.$CurrentBlock['type'].'Complete'}($CurrentBlock);
+        }
+
+        # ~
+
+        $Blocks []= $CurrentBlock;
+
+        unset($Blocks[0]);
+
+        # ~
+
+        $markup = '';
+
+        foreach ($Blocks as $Block)
+        {
+            if (isset($Block['hidden']))
+            {
+                continue;
+            }
+
+            $markup .= "\n";
+            $markup .= isset($Block['markup']) ? $Block['markup'] : $this->element($Block['element']);
+        }
+
+        $markup .= "\n";
+
+        # ~
+
+        return $markup;
+    }
+
+    #
+    # Code
+
+    protected function blockCode($Line, $Block = null)
+    {
+        if (isset($Block) and ! isset($Block['type']) and ! isset($Block['interrupted']))
+        {
+            return;
+        }
+
+        if ($Line['indent'] >= 4)
+        {
+            $text = substr($Line['body'], 4);
+
+            $Block = array(
+                'element' => array(
+                    'name' => 'pre',
+                    'handler' => 'element',
+                    'text' => array(
+                        'name' => 'code',
+                        'text' => $text,
+                    ),
+                ),
+            );
+
+            return $Block;
+        }
+    }
+
+    protected function blockCodeContinue($Line, $Block)
+    {
+        if ($Line['indent'] >= 4)
+        {
+            if (isset($Block['interrupted']))
+            {
+                $Block['element']['text']['text'] .= "\n";
+
+                unset($Block['interrupted']);
+            }
+
+            $Block['element']['text']['text'] .= "\n";
+
+            $text = substr($Line['body'], 4);
+
+            $Block['element']['text']['text'] .= $text;
+
+            return $Block;
+        }
+    }
+
+    protected function blockCodeComplete($Block)
+    {
+        $text = $Block['element']['text']['text'];
+
+        $text = htmlspecialchars($text, ENT_NOQUOTES, 'UTF-8');
+
+        $Block['element']['text']['text'] = $text;
+
+        return $Block;
+    }
+
+    #
+    # Comment
+
+    protected function blockComment($Line)
+    {
+        if ($this->markupEscaped)
+        {
+            return;
+        }
+
+        if (isset($Line['text'][3]) and $Line['text'][3] === '-' and $Line['text'][2] === '-' and $Line['text'][1] === '!')
+        {
+            $Block = array(
+                'markup' => $Line['body'],
+            );
+
+            if (preg_match('/-->$/', $Line['text']))
+            {
+                $Block['closed'] = true;
+            }
+
+            return $Block;
+        }
+    }
+
+    protected function blockCommentContinue($Line, array $Block)
+    {
+        if (isset($Block['closed']))
+        {
+            return;
+        }
+
+        $Block['markup'] .= "\n" . $Line['body'];
+
+        if (preg_match('/-->$/', $Line['text']))
+        {
+            $Block['closed'] = true;
+        }
+
+        return $Block;
+    }
+
+    #
+    # Fenced Code
+
+    protected function blockFencedCode($Line)
+    {
+        if (preg_match('/^(['.$Line['text'][0].']{3,})[ ]*([\w-]+)?[ ]*$/', $Line['text'], $matches))
+        {
+            $Element = array(
+                'name' => 'code',
+                'text' => '',
+            );
+
+            if (isset($matches[2]))
+            {
+                $class = 'language-'.$matches[2];
+
+                $Element['attributes'] = array(
+                    'class' => $class,
+                );
+            }
+
+            $Block = array(
+                'char' => $Line['text'][0],
+                'element' => array(
+                    'name' => 'pre',
+                    'handler' => 'element',
+                    'text' => $Element,
+                ),
+            );
+
+            return $Block;
+        }
+    }
+
+    protected function blockFencedCodeContinue($Line, $Block)
+    {
+        if (isset($Block['complete']))
+        {
+            return;
+        }
+
+        if (isset($Block['interrupted']))
+        {
+            $Block['element']['text']['text'] .= "\n";
+
+            unset($Block['interrupted']);
+        }
+
+        if (preg_match('/^'.$Block['char'].'{3,}[ ]*$/', $Line['text']))
+        {
+            $Block['element']['text']['text'] = substr($Block['element']['text']['text'], 1);
+
+            $Block['complete'] = true;
+
+            return $Block;
+        }
+
+        $Block['element']['text']['text'] .= "\n".$Line['body'];;
+
+        return $Block;
+    }
+
+    protected function blockFencedCodeComplete($Block)
+    {
+        $text = $Block['element']['text']['text'];
+
+        $text = htmlspecialchars($text, ENT_NOQUOTES, 'UTF-8');
+
+        $Block['element']['text']['text'] = $text;
+
+        return $Block;
+    }
+
+    #
+    # Header
+
+    protected function blockHeader($Line)
+    {
+        if (isset($Line['text'][1]))
+        {
+            $level = 1;
+
+            while (isset($Line['text'][$level]) and $Line['text'][$level] === '#')
+            {
+                $level ++;
+            }
+
+            if ($level > 6)
+            {
+                return;
+            }
+
+            $text = trim($Line['text'], '# ');
+
+            $Block = array(
+                'element' => array(
+                    'name' => 'h' . min(6, $level),
+                    'text' => $text,
+                    'handler' => 'line',
+                ),
+            );
+
+            return $Block;
+        }
+    }
+
+    #
+    # List
+
+    protected function blockList($Line)
+    {
+        list($name, $pattern) = $Line['text'][0] <= '-' ? array('ul', '[*+-]') : array('ol', '[0-9]+[.]');
+
+        if (preg_match('/^('.$pattern.'[ ]+)(.*)/', $Line['text'], $matches))
+        {
+            $Block = array(
+                'indent' => $Line['indent'],
+                'pattern' => $pattern,
+                'element' => array(
+                    'name' => $name,
+                    'handler' => 'elements',
+                ),
+            );
+
+            $Block['li'] = array(
+                'name' => 'li',
+                'handler' => 'li',
+                'text' => array(
+                    $matches[2],
+                ),
+            );
+
+            $Block['element']['text'] []= & $Block['li'];
+
+            return $Block;
+        }
+    }
+
+    protected function blockListContinue($Line, array $Block)
+    {
+        if ($Block['indent'] === $Line['indent'] and preg_match('/^'.$Block['pattern'].'(?:[ ]+(.*)|$)/', $Line['text'], $matches))
+        {
+            if (isset($Block['interrupted']))
+            {
+                $Block['li']['text'] []= '';
+
+                unset($Block['interrupted']);
+            }
+
+            unset($Block['li']);
+
+            $text = isset($matches[1]) ? $matches[1] : '';
+
+            $Block['li'] = array(
+                'name' => 'li',
+                'handler' => 'li',
+                'text' => array(
+                    $text,
+                ),
+            );
+
+            $Block['element']['text'] []= & $Block['li'];
+
+            return $Block;
+        }
+
+        if ($Line['text'][0] === '[' and $this->blockReference($Line))
+        {
+            return $Block;
+        }
+
+        if ( ! isset($Block['interrupted']))
+        {
+            $text = preg_replace('/^[ ]{0,4}/', '', $Line['body']);
+
+            $Block['li']['text'] []= $text;
+
+            return $Block;
+        }
+
+        if ($Line['indent'] > 0)
+        {
+            $Block['li']['text'] []= '';
+
+            $text = preg_replace('/^[ ]{0,4}/', '', $Line['body']);
+
+            $Block['li']['text'] []= $text;
+
+            unset($Block['interrupted']);
+
+            return $Block;
+        }
+    }
+
+    #
+    # Quote
+
+    protected function blockQuote($Line)
+    {
+        if (preg_match('/^>[ ]?(.*)/', $Line['text'], $matches))
+        {
+            $Block = array(
+                'element' => array(
+                    'name' => 'blockquote',
+                    'handler' => 'lines',
+                    'text' => (array) $matches[1],
+                ),
+            );
+
+            return $Block;
+        }
+    }
+
+    protected function blockQuoteContinue($Line, array $Block)
+    {
+        if ($Line['text'][0] === '>' and preg_match('/^>[ ]?(.*)/', $Line['text'], $matches))
+        {
+            if (isset($Block['interrupted']))
+            {
+                $Block['element']['text'] []= '';
+
+                unset($Block['interrupted']);
+            }
+
+            $Block['element']['text'] []= $matches[1];
+
+            return $Block;
+        }
+
+        if ( ! isset($Block['interrupted']))
+        {
+            $Block['element']['text'] []= $Line['text'];
+
+            return $Block;
+        }
+    }
+
+    #
+    # Rule
+
+    protected function blockRule($Line)
+    {
+        if (preg_match('/^(['.$Line['text'][0].'])([ ]*\1){2,}[ ]*$/', $Line['text']))
+        {
+            $Block = array(
+                'element' => array(
+                    'name' => 'hr'
+                ),
+            );
+
+            return $Block;
+        }
+    }
+
+    #
+    # Setext
+
+    protected function blockSetextHeader($Line, array $Block = null)
+    {
+        if ( ! isset($Block) or isset($Block['type']) or isset($Block['interrupted']))
+        {
+            return;
+        }
+
+        if (chop($Line['text'], $Line['text'][0]) === '')
+        {
+            $Block['element']['name'] = $Line['text'][0] === '=' ? 'h1' : 'h2';
+
+            return $Block;
+        }
+    }
+
+    #
+    # Markup
+
+    protected function blockMarkup($Line)
+    {
+        if ($this->markupEscaped)
+        {
+            return;
+        }
+
+        if (preg_match('/^<(\w*)(?:[ ]*'.$this->regexHtmlAttribute.')*[ ]*(\/)?>/', $Line['text'], $matches))
+        {
+            if (in_array($matches[1], $this->textLevelElements))
+            {
+                return;
+            }
+
+            $Block = array(
+                'name' => $matches[1],
+                'depth' => 0,
+                'markup' => $Line['text'],
+            );
+
+            $length = strlen($matches[0]);
+
+            $remainder = substr($Line['text'], $length);
+
+            if (trim($remainder) === '')
+            {
+                if (isset($matches[2]) or in_array($matches[1], $this->voidElements))
+                {
+                    $Block['closed'] = true;
+
+                    $Block['void'] = true;
+                }
+            }
+            else
+            {
+                if (isset($matches[2]) or in_array($matches[1], $this->voidElements))
+                {
+                    return;
+                }
+
+                if (preg_match('/<\/'.$matches[1].'>[ ]*$/i', $remainder))
+                {
+                    $Block['closed'] = true;
+                }
+            }
+
+            return $Block;
+        }
+    }
+
+    protected function blockMarkupContinue($Line, array $Block)
+    {
+        if (isset($Block['closed']))
+        {
+            return;
+        }
+
+        if (preg_match('/^<'.$Block['name'].'(?:[ ]*'.$this->regexHtmlAttribute.')*[ ]*>/i', $Line['text'])) # open
+        {
+            $Block['depth'] ++;
+        }
+
+        if (preg_match('/(.*?)<\/'.$Block['name'].'>[ ]*$/i', $Line['text'], $matches)) # close
+        {
+            if ($Block['depth'] > 0)
+            {
+                $Block['depth'] --;
+            }
+            else
+            {
+                $Block['closed'] = true;
+            }
+        }
+
+        if (isset($Block['interrupted']))
+        {
+            $Block['markup'] .= "\n";
+
+            unset($Block['interrupted']);
+        }
+
+        $Block['markup'] .= "\n".$Line['body'];
+
+        return $Block;
+    }
+
+    #
+    # Reference
+
+    protected function blockReference($Line)
+    {
+        if (preg_match('/^\[(.+?)\]:[ ]*<?(\S+?)>?(?:[ ]+["\'(](.+)["\')])?[ ]*$/', $Line['text'], $matches))
+        {
+            $id = strtolower($matches[1]);
+
+            $Data = array(
+                'url' => $matches[2],
+                'title' => null,
+            );
+
+            if (isset($matches[3]))
+            {
+                $Data['title'] = $matches[3];
+            }
+
+            $this->DefinitionData['Reference'][$id] = $Data;
+
+            $Block = array(
+                'hidden' => true,
+            );
+
+            return $Block;
+        }
+    }
+
+    #
+    # Table
+
+    protected function blockTable($Line, array $Block = null)
+    {
+        if ( ! isset($Block) or isset($Block['type']) or isset($Block['interrupted']))
+        {
+            return;
+        }
+
+        if (strpos($Block['element']['text'], '|') !== false and chop($Line['text'], ' -:|') === '')
+        {
+            $alignments = array();
+
+            $divider = $Line['text'];
+
+            $divider = trim($divider);
+            $divider = trim($divider, '|');
+
+            $dividerCells = explode('|', $divider);
+
+            foreach ($dividerCells as $dividerCell)
+            {
+                $dividerCell = trim($dividerCell);
+
+                if ($dividerCell === '')
+                {
+                    continue;
+                }
+
+                $alignment = null;
+
+                if ($dividerCell[0] === ':')
+                {
+                    $alignment = 'left';
+                }
+
+                if (substr($dividerCell, - 1) === ':')
+                {
+                    $alignment = $alignment === 'left' ? 'center' : 'right';
+                }
+
+                $alignments []= $alignment;
+            }
+
+            # ~
+
+            $HeaderElements = array();
+
+            $header = $Block['element']['text'];
+
+            $header = trim($header);
+            $header = trim($header, '|');
+
+            $headerCells = explode('|', $header);
+
+            foreach ($headerCells as $index => $headerCell)
+            {
+                $headerCell = trim($headerCell);
+
+                $HeaderElement = array(
+                    'name' => 'th',
+                    'text' => $headerCell,
+                    'handler' => 'line',
+                );
+
+                if (isset($alignments[$index]))
+                {
+                    $alignment = $alignments[$index];
+
+                    $HeaderElement['attributes'] = array(
+                        'style' => 'text-align: '.$alignment.';',
+                    );
+                }
+
+                $HeaderElements []= $HeaderElement;
+            }
+
+            # ~
+
+            $Block = array(
+                'alignments' => $alignments,
+                'identified' => true,
+                'element' => array(
+                    'name' => 'table',
+                    'handler' => 'elements',
+                ),
+            );
+
+            $Block['element']['text'] []= array(
+                'name' => 'thead',
+                'handler' => 'elements',
+            );
+
+            $Block['element']['text'] []= array(
+                'name' => 'tbody',
+                'handler' => 'elements',
+                'text' => array(),
+            );
+
+            $Block['element']['text'][0]['text'] []= array(
+                'name' => 'tr',
+                'handler' => 'elements',
+                'text' => $HeaderElements,
+            );
+
+            return $Block;
+        }
+    }
+
+    protected function blockTableContinue($Line, array $Block)
+    {
+        if (isset($Block['interrupted']))
+        {
+            return;
+        }
+
+        if ($Line['text'][0] === '|' or strpos($Line['text'], '|'))
+        {
+            $Elements = array();
+
+            $row = $Line['text'];
+
+            $row = trim($row);
+            $row = trim($row, '|');
+
+            preg_match_all('/(?:(\\\\[|])|[^|`]|`[^`]+`|`)+/', $row, $matches);
+
+            foreach ($matches[0] as $index => $cell)
+            {
+                $cell = trim($cell);
+
+                $Element = array(
+                    'name' => 'td',
+                    'handler' => 'line',
+                    'text' => $cell,
+                );
+
+                if (isset($Block['alignments'][$index]))
+                {
+                    $Element['attributes'] = array(
+                        'style' => 'text-align: '.$Block['alignments'][$index].';',
+                    );
+                }
+
+                $Elements []= $Element;
+            }
+
+            $Element = array(
+                'name' => 'tr',
+                'handler' => 'elements',
+                'text' => $Elements,
+            );
+
+            $Block['element']['text'][1]['text'] []= $Element;
+
+            return $Block;
+        }
+    }
+
+    #
+    # ~
+    #
+
+    protected function paragraph($Line)
+    {
+        $Block = array(
+            'element' => array(
+                'name' => 'p',
+                'text' => $Line['text'],
+                'handler' => 'line',
+            ),
+        );
+
+        return $Block;
+    }
+
+    #
+    # Inline Elements
+    #
+
+    protected $InlineTypes = array(
+        '"' => array('SpecialCharacter'),
+        '!' => array('Image'),
+        '&' => array('SpecialCharacter'),
+        '*' => array('Emphasis'),
+        ':' => array('Url'),
+        '<' => array('UrlTag', 'EmailTag', 'Markup', 'SpecialCharacter'),
+        '>' => array('SpecialCharacter'),
+        '[' => array('Link'),
+        '_' => array('Emphasis'),
+        '`' => array('Code'),
+        '~' => array('Strikethrough'),
+        '\\' => array('EscapeSequence'),
+    );
+
+    # ~
+
+    protected $inlineMarkerList = '!"*_&[:<>`~\\';
+
+    #
+    # ~
+    #
+
+    public function line($text)
+    {
+        $markup = '';
+
+        $unexaminedText = $text;
+
+        $markerPosition = 0;
+
+        while ($excerpt = strpbrk($unexaminedText, $this->inlineMarkerList))
+        {
+            $marker = $excerpt[0];
+
+            $markerPosition += strpos($unexaminedText, $marker);
+
+            $Excerpt = array('text' => $excerpt, 'context' => $text);
+
+            foreach ($this->InlineTypes[$marker] as $inlineType)
+            {
+                $Inline = $this->{'inline'.$inlineType}($Excerpt);
+
+                if ( ! isset($Inline))
+                {
+                    continue;
+                }
+
+                if (isset($Inline['position']) and $Inline['position'] > $markerPosition) # position is ahead of marker
+                {
+                    continue;
+                }
+
+                if ( ! isset($Inline['position']))
+                {
+                    $Inline['position'] = $markerPosition;
+                }
+
+                $unmarkedText = substr($text, 0, $Inline['position']);
+
+                $markup .= $this->unmarkedText($unmarkedText);
+
+                $markup .= isset($Inline['markup']) ? $Inline['markup'] : $this->element($Inline['element']);
+
+                $text = substr($text, $Inline['position'] + $Inline['extent']);
+
+                $unexaminedText = $text;
+
+                $markerPosition = 0;
+
+                continue 2;
+            }
+
+            $unexaminedText = substr($excerpt, 1);
+
+            $markerPosition ++;
+        }
+
+        $markup .= $this->unmarkedText($text);
+
+        return $markup;
+    }
+
+    #
+    # ~
+    #
+
+    protected function inlineCode($Excerpt)
+    {
+        $marker = $Excerpt['text'][0];
+
+        if (preg_match('/^('.$marker.'+)[ ]*(.+?)[ ]*(?<!'.$marker.')\1(?!'.$marker.')/s', $Excerpt['text'], $matches))
+        {
+            $text = $matches[2];
+            $text = htmlspecialchars($text, ENT_NOQUOTES, 'UTF-8');
+            $text = preg_replace("/[ ]*\n/", ' ', $text);
+
+            return array(
+                'extent' => strlen($matches[0]),
+                'element' => array(
+                    'name' => 'code',
+                    'text' => $text,
+                ),
+            );
+        }
+    }
+
+    protected function inlineEmailTag($Excerpt)
+    {
+        if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<((mailto:)?\S+?@\S+?)>/i', $Excerpt['text'], $matches))
+        {
+            $url = $matches[1];
+
+            if ( ! isset($matches[2]))
+            {
+                $url = 'mailto:' . $url;
+            }
+
+            return array(
+                'extent' => strlen($matches[0]),
+                'element' => array(
+                    'name' => 'a',
+                    'text' => $matches[1],
+                    'attributes' => array(
+                        'href' => $url,
+                    ),
+                ),
+            );
+        }
+    }
+
+    protected function inlineEmphasis($Excerpt)
+    {
+        if ( ! isset($Excerpt['text'][1]))
+        {
+            return;
+        }
+
+        $marker = $Excerpt['text'][0];
+
+        if ($Excerpt['text'][1] === $marker and preg_match($this->StrongRegex[$marker], $Excerpt['text'], $matches))
+        {
+            $emphasis = 'strong';
+        }
+        elseif (preg_match($this->EmRegex[$marker], $Excerpt['text'], $matches))
+        {
+            $emphasis = 'em';
+        }
+        else
+        {
+            return;
+        }
+
+        return array(
+            'extent' => strlen($matches[0]),
+            'element' => array(
+                'name' => $emphasis,
+                'handler' => 'line',
+                'text' => $matches[1],
+            ),
+        );
+    }
+
+    protected function inlineEscapeSequence($Excerpt)
+    {
+        if (isset($Excerpt['text'][1]) and in_array($Excerpt['text'][1], $this->specialCharacters))
+        {
+            return array(
+                'markup' => $Excerpt['text'][1],
+                'extent' => 2,
+            );
+        }
+    }
+
+    protected function inlineImage($Excerpt)
+    {
+        if ( ! isset($Excerpt['text'][1]) or $Excerpt['text'][1] !== '[')
+        {
+            return;
+        }
+
+        $Excerpt['text']= substr($Excerpt['text'], 1);
+
+        $Link = $this->inlineLink($Excerpt);
+
+        if ($Link === null)
+        {
+            return;
+        }
+
+        $Inline = array(
+            'extent' => $Link['extent'] + 1,
+            'element' => array(
+                'name' => 'img',
+                'attributes' => array(
+                    'src' => $Link['element']['attributes']['href'],
+                    'alt' => $Link['element']['text'],
+                ),
+            ),
+        );
+
+        $Inline['element']['attributes'] += $Link['element']['attributes'];
+
+        unset($Inline['element']['attributes']['href']);
+
+        return $Inline;
+    }
+
+    protected function inlineLink($Excerpt)
+    {
+        $Element = array(
+            'name' => 'a',
+            'handler' => 'line',
+            'text' => null,
+            'attributes' => array(
+                'href' => null,
+                'title' => null,
+            ),
+        );
+
+        $extent = 0;
+
+        $remainder = $Excerpt['text'];
+
+        if (preg_match('/\[((?:[^][]|(?R))*)\]/', $remainder, $matches))
+        {
+            $Element['text'] = $matches[1];
+
+            $extent += strlen($matches[0]);
+
+            $remainder = substr($remainder, $extent);
+        }
+        else
+        {
+            return;
+        }
+
+        if (preg_match('/^[(]((?:[^ ()]|[(][^ )]+[)])+)(?:[ ]+("[^"]*"|\'[^\']*\'))?[)]/', $remainder, $matches))
+        {
+            $Element['attributes']['href'] = $matches[1];
+
+            if (isset($matches[2]))
+            {
+                $Element['attributes']['title'] = substr($matches[2], 1, - 1);
+            }
+
+            $extent += strlen($matches[0]);
+        }
+        else
+        {
+            if (preg_match('/^\s*\[(.*?)\]/', $remainder, $matches))
+            {
+                $definition = $matches[1] ? $matches[1] : $Element['text'];
+                $definition = strtolower($definition);
+
+                $extent += strlen($matches[0]);
+            }
+            else
+            {
+                $definition = strtolower($Element['text']);
+            }
+
+            if ( ! isset($this->DefinitionData['Reference'][$definition]))
+            {
+                return;
+            }
+
+            $Definition = $this->DefinitionData['Reference'][$definition];
+
+            $Element['attributes']['href'] = $Definition['url'];
+            $Element['attributes']['title'] = $Definition['title'];
+        }
+
+        $Element['attributes']['href'] = str_replace(array('&', '<'), array('&amp;', '&lt;'), $Element['attributes']['href']);
+
+        return array(
+            'extent' => $extent,
+            'element' => $Element,
+        );
+    }
+
+    protected function inlineMarkup($Excerpt)
+    {
+        if ($this->markupEscaped or strpos($Excerpt['text'], '>') === false)
+        {
+            return;
+        }
+
+        if ($Excerpt['text'][1] === '/' and preg_match('/^<\/\w*[ ]*>/s', $Excerpt['text'], $matches))
+        {
+            return array(
+                'markup' => $matches[0],
+                'extent' => strlen($matches[0]),
+            );
+        }
+
+        if ($Excerpt['text'][1] === '!' and preg_match('/^<!---?[^>-](?:-?[^-])*-->/s', $Excerpt['text'], $matches))
+        {
+            return array(
+                'markup' => $matches[0],
+                'extent' => strlen($matches[0]),
+            );
+        }
+
+        if ($Excerpt['text'][1] !== ' ' and preg_match('/^<\w*(?:[ ]*'.$this->regexHtmlAttribute.')*[ ]*\/?>/s', $Excerpt['text'], $matches))
+        {
+            return array(
+                'markup' => $matches[0],
+                'extent' => strlen($matches[0]),
+            );
+        }
+    }
+
+    protected function inlineSpecialCharacter($Excerpt)
+    {
+        if ($Excerpt['text'][0] === '&' and ! preg_match('/^&#?\w+;/', $Excerpt['text']))
+        {
+            return array(
+                'markup' => '&amp;',
+                'extent' => 1,
+            );
+        }
+
+        $SpecialCharacter = array('>' => 'gt', '<' => 'lt', '"' => 'quot');
+
+        if (isset($SpecialCharacter[$Excerpt['text'][0]]))
+        {
+            return array(
+                'markup' => '&'.$SpecialCharacter[$Excerpt['text'][0]].';',
+                'extent' => 1,
+            );
+        }
+    }
+
+    protected function inlineStrikethrough($Excerpt)
+    {
+        if ( ! isset($Excerpt['text'][1]))
+        {
+            return;
+        }
+
+        if ($Excerpt['text'][1] === '~' and preg_match('/^~~(?=\S)(.+?)(?<=\S)~~/', $Excerpt['text'], $matches))
+        {
+            return array(
+                'extent' => strlen($matches[0]),
+                'element' => array(
+                    'name' => 'del',
+                    'text' => $matches[1],
+                    'handler' => 'line',
+                ),
+            );
+        }
+    }
+
+    protected function inlineUrl($Excerpt)
+    {
+        if ($this->urlsLinked !== true or ! isset($Excerpt['text'][2]) or $Excerpt['text'][2] !== '/')
+        {
+            return;
+        }
+
+        if (preg_match('/\bhttps?:[\/]{2}[^\s<]+\b\/*/ui', $Excerpt['context'], $matches, PREG_OFFSET_CAPTURE))
+        {
+            $Inline = array(
+                'extent' => strlen($matches[0][0]),
+                'position' => $matches[0][1],
+                'element' => array(
+                    'name' => 'a',
+                    'text' => $matches[0][0],
+                    'attributes' => array(
+                        'href' => $matches[0][0],
+                    ),
+                ),
+            );
+
+            return $Inline;
+        }
+    }
+
+    protected function inlineUrlTag($Excerpt)
+    {
+        if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<(\w+:\/{2}[^ >]+)>/i', $Excerpt['text'], $matches))
+        {
+            $url = str_replace(array('&', '<'), array('&amp;', '&lt;'), $matches[1]);
+
+            return array(
+                'extent' => strlen($matches[0]),
+                'element' => array(
+                    'name' => 'a',
+                    'text' => $url,
+                    'attributes' => array(
+                        'href' => $url,
+                    ),
+                ),
+            );
+        }
+    }
+
+    # ~
+
+    protected function unmarkedText($text)
+    {
+        if ($this->breaksEnabled)
+        {
+            $text = preg_replace('/[ ]*\n/', "<br />\n", $text);
+        }
+        else
+        {
+            $text = preg_replace('/(?:[ ][ ]+|[ ]*\\\\)\n/', "<br />\n", $text);
+            $text = str_replace(" \n", "\n", $text);
+        }
+
+        return $text;
+    }
+
+    #
+    # Handlers
+    #
+
+    protected function element(array $Element)
+    {
+        $markup = '<'.$Element['name'];
+
+        if (isset($Element['attributes']))
+        {
+            foreach ($Element['attributes'] as $name => $value)
+            {
+                if ($value === null)
+                {
+                    continue;
+                }
+
+                $markup .= ' '.$name.'="'.$value.'"';
+            }
+        }
+
+        if (isset($Element['text']))
+        {
+            $markup .= '>';
+
+            if (isset($Element['handler']))
+            {
+                $markup .= $this->{$Element['handler']}($Element['text']);
+            }
+            else
+            {
+                $markup .= $Element['text'];
+            }
+
+            $markup .= '</'.$Element['name'].'>';
+        }
+        else
+        {
+            $markup .= ' />';
+        }
+
+        return $markup;
+    }
+
+    protected function elements(array $Elements)
+    {
+        $markup = '';
+
+        foreach ($Elements as $Element)
+        {
+            $markup .= "\n" . $this->element($Element);
+        }
+
+        $markup .= "\n";
+
+        return $markup;
+    }
+
+    # ~
+
+    protected function li($lines)
+    {
+        $markup = $this->lines($lines);
+
+        $trimmedMarkup = trim($markup);
+
+        if ( ! in_array('', $lines) and substr($trimmedMarkup, 0, 3) === '<p>')
+        {
+            $markup = $trimmedMarkup;
+            $markup = substr($markup, 3);
+
+            $position = strpos($markup, "</p>");
+
+            $markup = substr_replace($markup, '', $position, 4);
+        }
+
+        return $markup;
+    }
+
+    #
+    # Deprecated Methods
+    #
+
+    function parse($text)
+    {
+        $markup = $this->text($text);
+
+        return $markup;
+    }
+
+    #
+    # Static Methods
+    #
+
+    static function instance($name = 'default')
+    {
+        if (isset(self::$instances[$name]))
+        {
+            return self::$instances[$name];
+        }
+
+        $instance = new self();
+
+        self::$instances[$name] = $instance;
+
+        return $instance;
+    }
+
+    private static $instances = array();
+
+    #
+    # Fields
+    #
+
+    protected $DefinitionData;
+
+    #
+    # Read-Only
+
+    protected $specialCharacters = array(
+        '\\', '`', '*', '_', '{', '}', '[', ']', '(', ')', '>', '#', '+', '-', '.', '!', '|',
+    );
+
+    protected $StrongRegex = array(
+        '*' => '/^[*]{2}((?:\\\\\*|[^*]|[*][^*]*[*])+?)[*]{2}(?![*])/s',
+        '_' => '/^__((?:\\\\_|[^_]|_[^_]*_)+?)__(?!_)/us',
+    );
+
+    protected $EmRegex = array(
+        '*' => '/^[*]((?:\\\\\*|[^*]|[*][*][^*]+?[*][*])+?)[*](?![*])/s',
+        '_' => '/^_((?:\\\\_|[^_]|__[^_]*__)+?)_(?!_)\b/us',
+    );
+
+    protected $regexHtmlAttribute = '[a-zA-Z_:][\w:.-]*(?:\s*=\s*(?:[^"\'=<>`\s]+|"[^"]*"|\'[^\']*\'))?';
+
+    protected $voidElements = array(
+        'area', 'base', 'br', 'col', 'command', 'embed', 'hr', 'img', 'input', 'link', 'meta', 'param', 'source',
+    );
+
+    protected $textLevelElements = array(
+        'a', 'br', 'bdo', 'abbr', 'blink', 'nextid', 'acronym', 'basefont',
+        'b', 'em', 'big', 'cite', 'small', 'spacer', 'listing',
+        'i', 'rp', 'del', 'code',          'strike', 'marquee',
+        'q', 'rt', 'ins', 'font',          'strong',
+        's', 'tt', 'sub', 'mark',
+        'u', 'xm', 'sup', 'nobr',
+                   'var', 'ruby',
+                   'wbr', 'span',
+                          'time',
+    );
+}
diff --git a/library/parsedown/README.md b/library/parsedown/README.md
new file mode 100644
index 0000000000..8d485e7d27
--- /dev/null
+++ b/library/parsedown/README.md
@@ -0,0 +1,48 @@
+## Parsedown
+
+Better Markdown Parser in PHP
+
+[[ demo ]](http://parsedown.org/demo)
+
+### Features
+
+* [Fast](http://parsedown.org/speed)
+* [Consistent](http://parsedown.org/consistency)
+* [GitHub flavored](https://help.github.com/articles/github-flavored-markdown)
+* [Tested](http://parsedown.org/tests/) in PHP 5.2, 5.3, 5.4, 5.5, 5.6 and [hhvm](http://www.hhvm.com/)
+* [Extensible](https://github.com/erusev/parsedown/wiki/Writing-Extensions)
+* [Markdown Extra extension](https://github.com/erusev/parsedown-extra)
+
+### Installation
+
+Include `Parsedown.php` or install [the composer package](https://packagist.org/packages/erusev/parsedown).
+
+### Example
+
+``` php
+$Parsedown = new Parsedown();
+
+echo $Parsedown->text('Hello _Parsedown_!'); # prints: <p>Hello <em>Parsedown</em>!</p>
+```
+
+More examples in [the wiki](https://github.com/erusev/parsedown/wiki/Usage) and in [this video tutorial](http://youtu.be/wYZBY8DEikI).
+
+### Questions
+
+**How does Parsedown work?**
+
+It tries to read Markdown like a human. First, it looks at the lines. It’s interested in how the lines start. This helps it recognise blocks. It knows, for example, that if a line start with a `-` then it perhaps belong to a list. Once it recognises the blocks, it continues to the content. As it reads, it watches out for special characters. This helps it recognise inline elements (or inlines).
+
+We call this approach "line based". We believe that Parsedown is the first Markdown parser to use it. Since the release of Parsedown, other developers have used the same approach to develop other Markdown parsers in PHP and in other languages.
+
+**Is it compliant with CommonMark?**
+
+It passes most of the CommonMark tests. Most of the tests that don't pass deal with cases that are quite uncommon. Still, as CommonMark matures, compliance should improve.
+
+**Who uses it?**
+
+[phpDocumentor](http://www.phpdoc.org/), [October CMS](http://octobercms.com/), [Bolt CMS](http://bolt.cm/), [Kirby CMS](http://getkirby.com/), [Grav CMS](http://getgrav.org/), [Statamic CMS](http://www.statamic.com/),  [RaspberryPi.org](http://www.raspberrypi.org/) and [more](https://www.versioneye.com/php/erusev:parsedown/references).
+
+**How can I help?**
+
+Use it, star it, share it and if you feel generous, [donate some money](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=528P3NZQMP8N2).

From 4a6a6ca9375a61fb037b8c8cf3dbea179d92b720 Mon Sep 17 00:00:00 2001
From: Michael Vogel <icarus@dabo.de>
Date: Sun, 22 Feb 2015 20:06:13 +0100
Subject: [PATCH 02/13] Bugfix for spaces in links

---
 include/bbcode.php   | 2 +-
 library/markdown.php | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/bbcode.php b/include/bbcode.php
index d461b98482..1da9bf1d24 100644
--- a/include/bbcode.php
+++ b/include/bbcode.php
@@ -191,7 +191,7 @@ function bb_cleanup_share($shared, $plaintext, $nolink) {
 	if (isset($bookmark[1][0]))
 		$link = $bookmark[1][0];
 
-	if (($title != "") AND (strpos($title, $shared[1]) !== false))
+	if (($shared[1] != "") AND (strpos($title, $shared[1]) !== false))
 		$shared[1] = $title;
 
 	if (($title != "") AND ((strpos($shared[1],$title) !== false) OR
diff --git a/library/markdown.php b/library/markdown.php
index 271d2e36c6..83082f7ca7 100644
--- a/library/markdown.php
+++ b/library/markdown.php
@@ -2,6 +2,11 @@
 require_once("library/parsedown/Parsedown.php");
 
 function Markdown($text) {
+
+	// Bugfix for the library:
+	// "[Title](http://domain.tld/ )" isn't handled correctly
+	$text = preg_replace("/\[(.*?)\]\s*?\(\s*?(\S*?)\s*?\)/ism", '[$1]($2)', $text);
+
 	$Parsedown = new Parsedown();
 	return($Parsedown->text($text));
 }

From 70615d7f7873385f7fca1f168b0ea1f096e0b9a9 Mon Sep 17 00:00:00 2001
From: Michael Vogel <icarus@dabo.de>
Date: Sun, 22 Feb 2015 20:26:56 +0100
Subject: [PATCH 03/13] New versions.

---
 library/html-to-markdown/.gitignore           |  3 +++
 library/html-to-markdown/.travis.yml          |  6 +++++
 library/html-to-markdown/HTML_To_Markdown.php | 14 ++++++++---
 library/html-to-markdown/README.md            |  2 +-
 library/html-to-markdown/circle.yml           |  4 +++
 library/html-to-markdown/composer.json        | 25 +++++++++++++++++++
 library/parsedown/.travis.yml                 |  8 ++++++
 library/parsedown/composer.json               | 18 +++++++++++++
 library/parsedown/phpunit.xml.dist            |  8 ++++++
 9 files changed, 83 insertions(+), 5 deletions(-)
 create mode 100644 library/html-to-markdown/.gitignore
 create mode 100644 library/html-to-markdown/.travis.yml
 create mode 100644 library/html-to-markdown/circle.yml
 create mode 100644 library/html-to-markdown/composer.json
 create mode 100644 library/parsedown/.travis.yml
 create mode 100644 library/parsedown/composer.json
 create mode 100644 library/parsedown/phpunit.xml.dist

diff --git a/library/html-to-markdown/.gitignore b/library/html-to-markdown/.gitignore
new file mode 100644
index 0000000000..aa429a9a12
--- /dev/null
+++ b/library/html-to-markdown/.gitignore
@@ -0,0 +1,3 @@
+~*
+vendor
+composer.lock
\ No newline at end of file
diff --git a/library/html-to-markdown/.travis.yml b/library/html-to-markdown/.travis.yml
new file mode 100644
index 0000000000..48b3e64a41
--- /dev/null
+++ b/library/html-to-markdown/.travis.yml
@@ -0,0 +1,6 @@
+language: php
+php:
+  - "5.5"
+  - "5.4"
+  - "5.3"
+script: phpunit --no-configuration HTML_To_MarkdownTest ./tests/HTML_To_MarkdownTest.php
\ No newline at end of file
diff --git a/library/html-to-markdown/HTML_To_Markdown.php b/library/html-to-markdown/HTML_To_Markdown.php
index 1cc86505b6..109780eddf 100644
--- a/library/html-to-markdown/HTML_To_Markdown.php
+++ b/library/html-to-markdown/HTML_To_Markdown.php
@@ -4,7 +4,7 @@
  *
  * A helper class to convert HTML to Markdown.
  *
- * @version 2.1.2
+ * @version 2.2.1
  * @author Nick Cernis <nick@cern.is>
  * @link https://github.com/nickcernis/html2markdown/ Latest version on GitHub.
  * @link http://twitter.com/nickcernis Nick on twitter.
@@ -97,7 +97,7 @@ class HTML_To_Markdown
      *
      * Is the node a child of the given parent tag?
      *
-     * @param $parent_name string The name of the parent node to search for (e.g. 'code')
+     * @param $parent_name string|array The name of the parent node(s) to search for e.g. 'code' or array('pre', 'code')
      * @param $node
      * @return bool
      */
@@ -107,6 +107,9 @@ class HTML_To_Markdown
             if (is_null($p))
                 return false;
 
+            if ( is_array($parent_name) && in_array($p->nodeName, $parent_name) )
+                return true;
+            
             if ($p->nodeName == $parent_name)
                 return true;
         }
@@ -127,7 +130,7 @@ class HTML_To_Markdown
     private function convert_children($node)
     {
         // Don't convert HTML code inside <code> and <pre> blocks to Markdown - that should stay as HTML
-        if (self::is_child_of('pre', $node) || self::is_child_of('code', $node))
+        if (self::is_child_of(array('pre', 'code'), $node))
             return;
 
         // If the node has children, convert those to Markdown first
@@ -388,6 +391,9 @@ class HTML_To_Markdown
             $markdown = '[' . $text . '](' . $href . ')';
         }
 
+        if (! $href)
+            $markdown = html_entity_decode($node->C14N());
+
         // Append a space if the node after this one is also an anchor
         $next_node_name = $this->get_next_node_name($node);
 
@@ -437,7 +443,7 @@ class HTML_To_Markdown
 
         $markdown = '';
 
-        $code_content = html_entity_decode($this->document->saveHTML($node));
+        $code_content = html_entity_decode($node->C14N());
         $code_content = str_replace(array("<code>", "</code>"), "", $code_content);
         $code_content = str_replace(array("<pre>", "</pre>"), "", $code_content);
 
diff --git a/library/html-to-markdown/README.md b/library/html-to-markdown/README.md
index 124c9868a9..de91c9d08d 100644
--- a/library/html-to-markdown/README.md
+++ b/library/html-to-markdown/README.md
@@ -5,7 +5,7 @@ A helper class that converts HTML to [Markdown](http://daringfireball.net/projec
 
 [![Build Status](https://travis-ci.org/nickcernis/html-to-markdown.png?branch=master)](https://travis-ci.org/nickcernis/html-to-markdown)
 
-**Version**: 2.2.0  
+**Version**: 2.2.1  
 **Requires**: PHP 5.3+  
 **Author**: [@nickcernis](http://twitter.com/nickcernis)  
 **License**: [MIT](http://www.opensource.org/licenses/mit-license.php)  
diff --git a/library/html-to-markdown/circle.yml b/library/html-to-markdown/circle.yml
new file mode 100644
index 0000000000..9893a4b92d
--- /dev/null
+++ b/library/html-to-markdown/circle.yml
@@ -0,0 +1,4 @@
+test:
+  override:
+    - phpunit --no-configuration HTML_To_MarkdownTest ./tests/HTML_To_MarkdownTest.php
+
diff --git a/library/html-to-markdown/composer.json b/library/html-to-markdown/composer.json
new file mode 100644
index 0000000000..beb7faab4a
--- /dev/null
+++ b/library/html-to-markdown/composer.json
@@ -0,0 +1,25 @@
+{
+    "name": "nickcernis/html-to-markdown",
+    "type": "library",
+    "description": "An HTML-to-markdown conversion helper for PHP",
+    "keywords": ["markdown", "html"],
+    "homepage": "https://github.com/nickcernis/html-to-markdown",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Nick Cernis",
+            "email": "nick@cern.is",
+            "homepage": "http://modernnerd.net"
+        }
+    ],
+    "autoload": {
+        "classmap": [ "HTML_To_Markdown.php" ]
+    },
+    "require": {
+        "php": ">=5.3"
+    },
+    "require-dev": {
+        "php": ">=5.3.3",
+        "phpunit/phpunit": "4.*"
+    }
+}
diff --git a/library/parsedown/.travis.yml b/library/parsedown/.travis.yml
new file mode 100644
index 0000000000..7d782fe192
--- /dev/null
+++ b/library/parsedown/.travis.yml
@@ -0,0 +1,8 @@
+language: php
+
+php:
+  - 5.6
+  - 5.5
+  - 5.4
+  - 5.3
+  - hhvm
diff --git a/library/parsedown/composer.json b/library/parsedown/composer.json
new file mode 100644
index 0000000000..1439b824dd
--- /dev/null
+++ b/library/parsedown/composer.json
@@ -0,0 +1,18 @@
+{
+    "name": "erusev/parsedown",
+    "description": "Parser for Markdown.",
+    "keywords": ["markdown", "parser"],
+    "homepage": "http://parsedown.org",
+    "type": "library",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Emanuil Rusev",
+            "email": "hello@erusev.com",
+            "homepage": "http://erusev.com"
+        }
+    ],
+    "autoload": {
+        "psr-0": {"Parsedown": ""}
+    }
+}
\ No newline at end of file
diff --git a/library/parsedown/phpunit.xml.dist b/library/parsedown/phpunit.xml.dist
new file mode 100644
index 0000000000..b2d5e9d4fe
--- /dev/null
+++ b/library/parsedown/phpunit.xml.dist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit bootstrap="test/bootstrap.php" colors="true">
+	<testsuites>
+		<testsuite>
+			<file>test/ParsedownTest.php</file>
+		</testsuite>
+	</testsuites>
+</phpunit>
\ No newline at end of file

From b710c8bbfd4cd12a903bd75130287416f7ce5ed1 Mon Sep 17 00:00:00 2001
From: Michael Vogel <icarus@dabo.de>
Date: Mon, 23 Feb 2015 08:27:35 +0100
Subject: [PATCH 04/13] Tests with new markdown library

---
 library/markdown.php                          |   18 +-
 library/php-markdown/License.md               |   36 +
 library/php-markdown/Michelf/Markdown.inc.php |   10 +
 library/php-markdown/Michelf/Markdown.php     | 3151 +++++++++++++++++
 .../Michelf/MarkdownExtra.inc.php             |   11 +
 .../php-markdown/Michelf/MarkdownExtra.php    |   38 +
 .../Michelf/MarkdownInterface.inc.php         |    9 +
 .../Michelf/MarkdownInterface.php             |   34 +
 library/php-markdown/Readme.md                |  315 ++
 library/php-markdown/Readme.php               |   31 +
 library/php-markdown/composer.json            |   31 +
 library/php-markdown/markdown.php             |   17 +
 12 files changed, 3694 insertions(+), 7 deletions(-)
 create mode 100644 library/php-markdown/License.md
 create mode 100644 library/php-markdown/Michelf/Markdown.inc.php
 create mode 100644 library/php-markdown/Michelf/Markdown.php
 create mode 100644 library/php-markdown/Michelf/MarkdownExtra.inc.php
 create mode 100644 library/php-markdown/Michelf/MarkdownExtra.php
 create mode 100644 library/php-markdown/Michelf/MarkdownInterface.inc.php
 create mode 100644 library/php-markdown/Michelf/MarkdownInterface.php
 create mode 100644 library/php-markdown/Readme.md
 create mode 100644 library/php-markdown/Readme.php
 create mode 100644 library/php-markdown/composer.json
 create mode 100644 library/php-markdown/markdown.php

diff --git a/library/markdown.php b/library/markdown.php
index 83082f7ca7..8958e8c842 100644
--- a/library/markdown.php
+++ b/library/markdown.php
@@ -1,13 +1,17 @@
 <?php
-require_once("library/parsedown/Parsedown.php");
+//# Install PSR-0-compatible class autoloader
+//spl_autoload_register(function($class){
+//	require preg_replace('{\\\\|_(?!.*\\\\)}', DIRECTORY_SEPARATOR, ltrim($class, '\\')).'.php';
+//});
+
+require_once("library/php-markdown/Michelf/MarkdownExtra.inc.php");
+# Get Markdown class
+use \Michelf\MarkdownExtra;
 
 function Markdown($text) {
+	# Read file and pass content through the Markdown parser
+	$html = MarkdownExtra::defaultTransform($text);
 
-	// Bugfix for the library:
-	// "[Title](http://domain.tld/ )" isn't handled correctly
-	$text = preg_replace("/\[(.*?)\]\s*?\(\s*?(\S*?)\s*?\)/ism", '[$1]($2)', $text);
-
-	$Parsedown = new Parsedown();
-	return($Parsedown->text($text));
+	return $html;
 }
 ?>
diff --git a/library/php-markdown/License.md b/library/php-markdown/License.md
new file mode 100644
index 0000000000..8a5b85447e
--- /dev/null
+++ b/library/php-markdown/License.md
@@ -0,0 +1,36 @@
+PHP Markdown Lib  
+Copyright (c) 2004-2014 Michel Fortin  
+<http://michelf.ca/>  
+All rights reserved.
+
+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
+modification, are permitted provided that the following conditions are
+met:
+
+* Redistributions of source code must retain the above copyright notice,
+  this list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright
+  notice, this list of conditions and the following disclaimer in the
+  documentation and/or other materials provided with the distribution.
+
+* Neither the name "Markdown" nor the names of its contributors may
+  be used to endorse or promote products derived from this software
+  without specific prior written permission.
+
+This software is provided by the copyright holders and contributors "as
+is" and any express or implied warranties, including, but not limited
+to, the implied warranties of merchantability and fitness for a
+particular purpose are disclaimed. In no event shall the copyright owner
+or contributors be liable for any direct, indirect, incidental, special,
+exemplary, or consequential damages (including, but not limited to,
+procurement of substitute goods or services; loss of use, data, or
+profits; or business interruption) however caused and on any theory of
+liability, whether in contract, strict liability, or tort (including
+negligence or otherwise) arising in any way out of the use of this
+software, even if advised of the possibility of such damage.
diff --git a/library/php-markdown/Michelf/Markdown.inc.php b/library/php-markdown/Michelf/Markdown.inc.php
new file mode 100644
index 0000000000..8c281094ce
--- /dev/null
+++ b/library/php-markdown/Michelf/Markdown.inc.php
@@ -0,0 +1,10 @@
+<?php
+
+# Use this file if you cannot use class autoloading. It will include all the
+# files needed for the Markdown parser.
+#
+# Take a look at the PSR-0-compatible class autoloading implementation
+# in the Readme.php file if you want a simple autoloader setup.
+
+require_once dirname(__FILE__) . '/MarkdownInterface.php';
+require_once dirname(__FILE__) . '/Markdown.php';
diff --git a/library/php-markdown/Michelf/Markdown.php b/library/php-markdown/Michelf/Markdown.php
new file mode 100644
index 0000000000..c8ced899c6
--- /dev/null
+++ b/library/php-markdown/Michelf/Markdown.php
@@ -0,0 +1,3151 @@
+<?php
+#
+# Markdown  -  A text-to-HTML conversion tool for web writers
+#
+# PHP Markdown  
+# Copyright (c) 2004-2014 Michel Fortin  
+# <http://michelf.com/projects/php-markdown/>
+#
+# Original Markdown  
+# Copyright (c) 2004-2006 John Gruber  
+# <http://daringfireball.net/projects/markdown/>
+#
+namespace Michelf;
+
+
+#
+# Markdown Parser Class
+#
+
+class Markdown implements MarkdownInterface {
+
+	### Version ###
+
+	const  MARKDOWNLIB_VERSION  =  "1.4.1";
+
+	### Simple Function Interface ###
+
+	public static function defaultTransform($text) {
+	#
+	# Initialize the parser and return the result of its transform method.
+	# This will work fine for derived classes too.
+	#
+		# Take parser class on which this function was called.
+		$parser_class = \get_called_class();
+
+		# try to take parser from the static parser list
+		static $parser_list;
+		$parser =& $parser_list[$parser_class];
+
+		# create the parser it not already set
+		if (!$parser)
+			$parser = new $parser_class;
+
+		# Transform text using parser.
+		return $parser->transform($text);
+	}
+
+	### Configuration Variables ###
+
+	# Change to ">" for HTML output.
+	public $empty_element_suffix = " />";
+	public $tab_width = 4;
+	
+	# Change to `true` to disallow markup or entities.
+	public $no_markup = false;
+	public $no_entities = false;
+	
+	# Predefined urls and titles for reference links and images.
+	public $predef_urls = array();
+	public $predef_titles = array();
+
+	# Optional filter function for URLs
+	public $url_filter_func = null;
+
+
+	### Parser Implementation ###
+
+	# Regex to match balanced [brackets].
+	# Needed to insert a maximum bracked depth while converting to PHP.
+	protected $nested_brackets_depth = 6;
+	protected $nested_brackets_re;
+	
+	protected $nested_url_parenthesis_depth = 4;
+	protected $nested_url_parenthesis_re;
+
+	# Table of hash values for escaped characters:
+	protected $escape_chars = '\`*_{}[]()>#+-.!';
+	protected $escape_chars_re;
+
+
+	public function __construct() {
+	#
+	# Constructor function. Initialize appropriate member variables.
+	#
+		$this->_initDetab();
+		$this->prepareItalicsAndBold();
+	
+		$this->nested_brackets_re = 
+			str_repeat('(?>[^\[\]]+|\[', $this->nested_brackets_depth).
+			str_repeat('\])*', $this->nested_brackets_depth);
+	
+		$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);
+		asort($this->span_gamut);
+	}
+
+
+	# Internal hashes used during transformation.
+	protected $urls = array();
+	protected $titles = array();
+	protected $html_hashes = array();
+	
+	# Status flag to avoid invalid nesting.
+	protected $in_anchor = false;
+	
+	
+	protected function setup() {
+	#
+	# 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();
+		
+		$this->in_anchor = false;
+	}
+	
+	protected function teardown() {
+	#
+	# Called after the transformation process to clear any variable 
+	# which may be taking up memory unnecessarly.
+	#
+		$this->urls = array();
+		$this->titles = array();
+		$this->html_hashes = array();
+	}
+
+
+	public function transform($text) {
+	#
+	# Main function. Performs some preprocessing on the input text
+	# 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);
+
+		# Standardize line endings:
+		#   DOS to Unix and Mac to Unix
+		$text = preg_replace('{\r\n?}', "\n", $text);
+
+		# Make sure $text ends with a couple of newlines:
+		$text .= "\n\n";
+
+		# Convert all tabs to spaces.
+		$text = $this->detab($text);
+
+		# Turn block-level HTML blocks into hash entries
+		$text = $this->hashHTMLBlocks($text);
+
+		# Strip any lines consisting only of spaces and tabs.
+		# This makes subsequent regexen easier to write, because we can
+		# match consecutive blank lines with /\n+/ instead of something
+		# contorted like /[ ]*\n+/ .
+		$text = preg_replace('/^[ ]+$/m', '', $text);
+
+		# Run document gamut methods.
+		foreach ($this->document_gamut as $method => $priority) {
+			$text = $this->$method($text);
+		}
+		
+		$this->teardown();
+
+		return $text . "\n";
+	}
+	
+	protected $document_gamut = array(
+		# Strip link definitions, store in hashes.
+		"stripLinkDefinitions" => 20,
+		
+		"runBasicBlockGamut"   => 30,
+		);
+
+
+	protected function stripLinkDefinitions($text) {
+	#
+	# Strips link definitions from text, stores the URLs and titles in
+	# hash references.
+	#
+		$less_than_tab = $this->tab_width - 1;
+
+		# Link defs are in the form: ^[id]: url "optional title"
+		$text = preg_replace_callback('{
+							^[ ]{0,'.$less_than_tab.'}\[(.+)\][ ]?:	# id = $1
+							  [ ]*
+							  \n?				# maybe *one* newline
+							  [ ]*
+							(?:
+							  <(.+?)>			# url = $2
+							|
+							  (\S+?)			# url = $3
+							)
+							  [ ]*
+							  \n?				# maybe one newline
+							  [ ]*
+							(?:
+								(?<=\s)			# lookbehind for whitespace
+								["(]
+								(.*?)			# title = $4
+								[")]
+								[ ]*
+							)?	# title is optional
+							(?:\n+|\Z)
+			}xm',
+			array($this, '_stripLinkDefinitions_callback'),
+			$text);
+		return $text;
+	}
+	protected function _stripLinkDefinitions_callback($matches) {
+		$link_id = strtolower($matches[1]);
+		$url = $matches[2] == '' ? $matches[3] : $matches[2];
+		$this->urls[$link_id] = $url;
+		$this->titles[$link_id] =& $matches[4];
+		return ''; # String that will replace the block
+	}
+
+
+	protected function hashHTMLBlocks($text) {
+		if ($this->no_markup)  return $text;
+
+		$less_than_tab = $this->tab_width - 1;
+
+		# Hashify HTML blocks:
+		# We only want to do this for block-level HTML tags, such as headers,
+		# lists, and tables. That's because we still want to wrap <p>s around
+		# "paragraphs" that are wrapped in non-block-level tags, such as anchors,
+		# phrase emphasis, and spans. The list of tags we're looking for is
+		# 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 
+		#    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|style|form|fieldset|iframe|math|svg|'.
+						   'article|section|nav|aside|hgroup|header|footer|'.
+						   'figure';
+
+		# Regular expression for the content of a block tag.
+		$nested_tags_level = 4;
+		$attr = '
+			(?>				# optional tag attributes
+			  \s			# starts with whitespace
+			  (?>
+				[^>"/]+		# text outside quotes
+			  |
+				/+(?!>)		# slash not followed by ">"
+			  |
+				"[^"]*"		# text inside double quotes (tolerate ">")
+			  |
+				\'[^\']*\'	# text inside single quotes (tolerate ">")
+			  )*
+			)?	
+			';
+		$content =
+			str_repeat('
+				(?>
+				  [^<]+			# content without tag
+				|
+				  <\2			# nested opening tag
+					'.$attr.'	# attributes
+					(?>
+					  />
+					|
+					  >', $nested_tags_level).	# end of opening tag
+					  '.*?'.					# last level nested tag content
+			str_repeat('
+					  </\2\s*>	# closing nested tag
+					)
+				  |				
+					<(?!/\2\s*>	# other tags with a different name
+				  )
+				)*',
+				$nested_tags_level);
+		$content2 = str_replace('\2', '\3', $content);
+
+		# First, look for nested blocks, e.g.:
+		# 	<div>
+		# 		<div>
+		# 		tags for inner block must be indented.
+		# 		</div>
+		# 	</div>
+		#
+		# The outermost tags must start at the left margin for this to match, and
+		# the inner nested divs must be indented.
+		# We need to do this before the next, more liberal match, because the next
+		# match will start at the first `<div>` and stop at the first `</div>`.
+		$text = preg_replace_callback('{(?>
+			(?>
+				(?<=\n)			# Starting on its own line
+				|				# or
+				\A\n?			# the at beginning of the doc
+			)
+			(						# save in $1
+
+			  # Match from `\n<tag>` to `</tag>\n`, handling nested tags 
+			  # in between.
+					
+						[ ]{0,'.$less_than_tab.'}
+						<('.$block_tags_b_re.')# start tag = $2
+						'.$attr.'>			# attributes followed by > and \n
+						'.$content.'		# content, support nesting
+						</\2>				# the matching end tag
+						[ ]*				# trailing spaces/tabs
+						(?=\n+|\Z)	# followed by a newline or end of document
+
+			| # Special version for tags of group a.
+
+						[ ]{0,'.$less_than_tab.'}
+						<('.$block_tags_a_re.')# start tag = $3
+						'.$attr.'>[ ]*\n	# attributes followed by >
+						'.$content2.'		# content, support nesting
+						</\3>				# the matching end tag
+						[ ]*				# trailing spaces/tabs
+						(?=\n+|\Z)	# followed by a newline or end of document
+					
+			| # Special case just for <hr />. It was easier to make a special 
+			  # case than to make the other regex more complicated.
+			
+						[ ]{0,'.$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:
+						<([?%])			# $2
+						.*?
+						\2>
+					)
+					[ ]*
+					(?=\n{2,}|\Z)		# followed by a blank line or end of document
+					
+			)
+			)}Sxmi',
+			array($this, '_hashHTMLBlocks_callback'),
+			$text);
+
+		return $text;
+	}
+	protected function _hashHTMLBlocks_callback($matches) {
+		$text = $matches[1];
+		$key  = $this->hashBlock($text);
+		return "\n\n$key\n\n";
+	}
+	
+	
+	protected function hashPart($text, $boundary = 'X') {
+	#
+	# 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.
+	#
+	# The $boundary argument specify what character should be used to surround
+	# the token. By convension, "B" is used for block elements that needs not
+	# to be wrapped into paragraph tags at the end, ":" is used for elements
+	# that are word separators and "X" is used in the general case.
+	#
+		# 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;
+		$this->html_hashes[$key] = $text;
+		return $key; # String that will replace the tag.
+	}
+
+
+	protected function hashBlock($text) {
+	#
+	# Shortcut function for hashPart with block-level boundaries.
+	#
+		return $this->hashPart($text, 'B');
+	}
+
+
+	protected $block_gamut = array(
+	#
+	# These are all the transformations that form block-level
+	# tags like paragraphs, headers, and list items.
+	#
+		"doHeaders"         => 10,
+		"doHorizontalRules" => 20,
+		
+		"doLists"           => 40,
+		"doCodeBlocks"      => 50,
+		"doBlockQuotes"     => 60,
+		);
+
+	protected function runBlockGamut($text) {
+	#
+	# 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 
+		# begining in the Markdown function since hashed blocks can be part of
+		# 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);
+	}
+	
+	protected function runBasicBlockGamut($text) {
+	#
+	# Run block gamut tranformations, without hashing HTML blocks. This is 
+	# useful when HTML blocks are known to be already hashed, like in the first
+	# whole-document pass.
+	#
+		foreach ($this->block_gamut as $method => $priority) {
+			$text = $this->$method($text);
+		}
+		
+		# Finally form paragraph and restore hashed blocks.
+		$text = $this->formParagraphs($text);
+
+		return $text;
+	}
+	
+	
+	protected function doHorizontalRules($text) {
+		# Do Horizontal Rules:
+		return preg_replace(
+			'{
+				^[ ]{0,3}	# Leading space
+				([-*_])		# $1: First marker
+				(?>			# Repeated marker group
+					[ ]{0,2}	# Zero, one, or two spaces.
+					\1			# Marker character
+				){2,}		# Group repeated at least twice
+				[ ]*		# Tailing spaces
+				$			# End of line.
+			}mx',
+			"\n".$this->hashBlock("<hr$this->empty_element_suffix")."\n", 
+			$text);
+	}
+
+
+	protected $span_gamut = array(
+	#
+	# These are all the transformations that occur *within* block-level
+	# tags like paragraphs, headers, and list items.
+	#
+		# Process character escapes, code spans, and inline HTML
+		# in one shot.
+		"parseSpan"           => -30,
+
+		# Process anchor and image tags. Images must come first,
+		# because ![foo][f] looks like an anchor.
+		"doImages"            =>  10,
+		"doAnchors"           =>  20,
+		
+		# Make links out of things like `<http://example.com/>`
+		# Must come after doAnchors, because you can use < and >
+		# delimiters in inline links like [this](<url>).
+		"doAutoLinks"         =>  30,
+		"encodeAmpsAndAngles" =>  40,
+
+		"doItalicsAndBold"    =>  50,
+		"doHardBreaks"        =>  60,
+		);
+
+	protected function runSpanGamut($text) {
+	#
+	# Run span gamut tranformations.
+	#
+		foreach ($this->span_gamut as $method => $priority) {
+			$text = $this->$method($text);
+		}
+
+		return $text;
+	}
+	
+	
+	protected function doHardBreaks($text) {
+		# Do hard breaks:
+		return preg_replace_callback('/ {2,}\n/', 
+			array($this, '_doHardBreaks_callback'), $text);
+	}
+	protected function _doHardBreaks_callback($matches) {
+		return $this->hashPart("<br$this->empty_element_suffix\n");
+	}
+
+
+	protected function doAnchors($text) {
+	#
+	# Turn Markdown link shortcuts into XHTML <a> tags.
+	#
+		if ($this->in_anchor) return $text;
+		$this->in_anchor = true;
+		
+		#
+		# First, handle reference-style links: [link text] [id]
+		#
+		$text = preg_replace_callback('{
+			(					# wrap whole match in $1
+			  \[
+				('.$this->nested_brackets_re.')	# link text = $2
+			  \]
+
+			  [ ]?				# one optional space
+			  (?:\n[ ]*)?		# one optional newline followed by spaces
+
+			  \[
+				(.*?)		# id = $3
+			  \]
+			)
+			}xs',
+			array($this, '_doAnchors_reference_callback'), $text);
+
+		#
+		# Next, inline-style links: [link text](url "optional title")
+		#
+		$text = preg_replace_callback('{
+			(				# wrap whole match in $1
+			  \[
+				('.$this->nested_brackets_re.')	# link text = $2
+			  \]
+			  \(			# literal paren
+				[ \n]*
+				(?:
+					<(.+?)>	# href = $3
+				|
+					('.$this->nested_url_parenthesis_re.')	# href = $4
+				)
+				[ \n]*
+				(			# $5
+				  ([\'"])	# quote char = $6
+				  (.*?)		# Title = $7
+				  \6		# matching quote
+				  [ \n]*	# ignore any spaces/tabs between closing quote and )
+				)?			# title is optional
+			  \)
+			)
+			}xs',
+			array($this, '_doAnchors_inline_callback'), $text);
+
+		#
+		# Last, handle reference-style shortcuts: [link text]
+		# 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);
+
+		$this->in_anchor = false;
+		return $text;
+	}
+	protected function _doAnchors_reference_callback($matches) {
+		$whole_match =  $matches[1];
+		$link_text   =  $matches[2];
+		$link_id     =& $matches[3];
+
+		if ($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 = $this->encodeURLAttribute($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);
+		}
+		else {
+			$result = $whole_match;
+		}
+		return $result;
+	}
+	protected function _doAnchors_inline_callback($matches) {
+		$whole_match	=  $matches[1];
+		$link_text		=  $this->runSpanGamut($matches[2]);
+		$url			=  $matches[3] == '' ? $matches[4] : $matches[3];
+		$title			=& $matches[7];
+
+		// if the URL was of the form <s p a c e s> it got caught by the HTML
+		// tag parser and hashed. Need to reverse the process before using the URL.
+		$unhashed = $this->unhash($url);
+		if ($unhashed != $url)
+			$url = preg_replace('/^<(.*)>$/', '\1', $unhashed);
+
+		$url = $this->encodeURLAttribute($url);
+
+		$result = "<a href=\"$url\"";
+		if (isset($title)) {
+			$title = $this->encodeAttribute($title);
+			$result .=  " title=\"$title\"";
+		}
+		
+		$link_text = $this->runSpanGamut($link_text);
+		$result .= ">$link_text</a>";
+
+		return $this->hashPart($result);
+	}
+
+
+	protected function doImages($text) {
+	#
+	# Turn Markdown image shortcuts into <img> tags.
+	#
+		#
+		# First, handle reference-style labeled images: ![alt text][id]
+		#
+		$text = preg_replace_callback('{
+			(				# wrap whole match in $1
+			  !\[
+				('.$this->nested_brackets_re.')		# alt text = $2
+			  \]
+
+			  [ ]?				# one optional space
+			  (?:\n[ ]*)?		# one optional newline followed by spaces
+
+			  \[
+				(.*?)		# id = $3
+			  \]
+
+			)
+			}xs', 
+			array($this, '_doImages_reference_callback'), $text);
+
+		#
+		# Next, handle inline images:  ![alt text](url "optional title")
+		# Don't forget: encode * and _
+		#
+		$text = preg_replace_callback('{
+			(				# wrap whole match in $1
+			  !\[
+				('.$this->nested_brackets_re.')		# alt text = $2
+			  \]
+			  \s?			# One optional whitespace character
+			  \(			# literal paren
+				[ \n]*
+				(?:
+					<(\S*)>	# src url = $3
+				|
+					('.$this->nested_url_parenthesis_re.')	# src url = $4
+				)
+				[ \n]*
+				(			# $5
+				  ([\'"])	# quote char = $6
+				  (.*?)		# title = $7
+				  \6		# matching quote
+				  [ \n]*
+				)?			# title is optional
+			  \)
+			)
+			}xs',
+			array($this, '_doImages_inline_callback'), $text);
+
+		return $text;
+	}
+	protected function _doImages_reference_callback($matches) {
+		$whole_match = $matches[1];
+		$alt_text    = $matches[2];
+		$link_id     = strtolower($matches[3]);
+
+		if ($link_id == "") {
+			$link_id = strtolower($alt_text); # for shortcut links like ![this][].
+		}
+
+		$alt_text = $this->encodeAttribute($alt_text);
+		if (isset($this->urls[$link_id])) {
+			$url = $this->encodeURLAttribute($this->urls[$link_id]);
+			$result = "<img src=\"$url\" alt=\"$alt_text\"";
+			if (isset($this->titles[$link_id])) {
+				$title = $this->titles[$link_id];
+				$title = $this->encodeAttribute($title);
+				$result .=  " title=\"$title\"";
+			}
+			$result .= $this->empty_element_suffix;
+			$result = $this->hashPart($result);
+		}
+		else {
+			# If there's no such link ID, leave intact:
+			$result = $whole_match;
+		}
+
+		return $result;
+	}
+	protected function _doImages_inline_callback($matches) {
+		$whole_match	= $matches[1];
+		$alt_text		= $matches[2];
+		$url			= $matches[3] == '' ? $matches[4] : $matches[3];
+		$title			=& $matches[7];
+
+		$alt_text = $this->encodeAttribute($alt_text);
+		$url = $this->encodeURLAttribute($url);
+		$result = "<img src=\"$url\" alt=\"$alt_text\"";
+		if (isset($title)) {
+			$title = $this->encodeAttribute($title);
+			$result .=  " title=\"$title\""; # $title already quoted
+		}
+		$result .= $this->empty_element_suffix;
+
+		return $this->hashPart($result);
+	}
+
+
+	protected function doHeaders($text) {
+		# Setext-style headers:
+		#	  Header 1
+		#	  ========
+		#  
+		#	  Header 2
+		#	  --------
+		#
+		$text = preg_replace_callback('{ ^(.+?)[ ]*\n(=+|-+)[ ]*\n+ }mx',
+			array($this, '_doHeaders_callback_setext'), $text);
+
+		# atx-style headers:
+		#	# Header 1
+		#	## Header 2
+		#	## Header 2 with closing hashes ##
+		#	...
+		#	###### Header 6
+		#
+		$text = preg_replace_callback('{
+				^(\#{1,6})	# $1 = string of #\'s
+				[ ]*
+				(.+?)		# $2 = Header text
+				[ ]*
+				\#*			# optional closing #\'s (not counted)
+				\n+
+			}xm',
+			array($this, '_doHeaders_callback_atx'), $text);
+
+		return $text;
+	}
+	protected function _doHeaders_callback_setext($matches) {
+		# 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";
+	}
+	protected function _doHeaders_callback_atx($matches) {
+		$level = strlen($matches[1]);
+		$block = "<h$level>".$this->runSpanGamut($matches[2])."</h$level>";
+		return "\n" . $this->hashBlock($block) . "\n\n";
+	}
+
+
+	protected function doLists($text) {
+	#
+	# Form HTML ordered (numbered) and unordered (bulleted) lists.
+	#
+		$less_than_tab = $this->tab_width - 1;
+
+		# Re-usable patterns to match list item bullets and number markers:
+		$marker_ul_re  = '[*+-]';
+		$marker_ol_re  = '\d+[\.]';
+
+		$markers_relist = array(
+			$marker_ul_re => $marker_ol_re,
+			$marker_ol_re => $marker_ul_re,
+			);
+
+		foreach ($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.'})	# $3 = number of spaces
+					('.$marker_re.')			# $4 = first list item marker
+					[ ]+
+				  )
+				  (?s:.+?)
+				  (								# $5
+					  \z
+					|
+					  \n{2,}
+					  (?=\S)
+					  (?!						# Negative lookahead for another list item marker
+						[ ]*
+						'.$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) {
+				$text = preg_replace_callback('{
+						^
+						'.$whole_list_re.'
+					}mx',
+					array($this, '_doLists_callback'), $text);
+			}
+			else {
+				$text = preg_replace_callback('{
+						(?:(?<=\n)\n|\A\n?) # Must eat the newline
+						'.$whole_list_re.'
+					}mx',
+					array($this, '_doLists_callback'), $text);
+			}
+		}
+
+		return $text;
+	}
+	protected function _doLists_callback($matches) {
+		# Re-usable patterns to match list item bullets and number markers:
+		$marker_ul_re  = '[*+-]';
+		$marker_ol_re  = '\d+[\.]';
+		$marker_any_re = "(?:$marker_ul_re|$marker_ol_re)";
+		
+		$list = $matches[1];
+		$list_type = preg_match("/$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";
+	}
+
+	protected $list_level = 0;
+
+	protected function processListItems($list_str, $marker_any_re) {
+	#
+	#	Process the contents of a single ordered or unordered list, splitting it
+	#	into individual list items.
+	#
+		# The $this->list_level global keeps track of when we're inside a list.
+		# Each time we enter a list, we increment it; when we leave a list,
+		# we decrement. If it's zero, we're not in a list anymore.
+		#
+		# We do this because when we're not inside a list, we want to treat
+		# something like this:
+		#
+		#		I recommend upgrading to version
+		#		8. Oops, now this line is treated
+		#		as a sub-list.
+		#
+		# As a single paragraph, despite the fact that the second line starts
+		# with a digit-period-space sequence.
+		#
+		# Whereas when we're inside a list (or sub-list), that line will be
+		# treated as the start of a sub-list. What a kludge, huh? This is
+		# an aspect of Markdown's syntax that's hard to parse perfectly
+		# 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:
+		$list_str = preg_replace("/\n{2,}\\z/", "\n", $list_str);
+
+		$list_str = preg_replace_callback('{
+			(\n)?							# leading line = $1
+			(^[ ]*)							# leading whitespace = $2
+			('.$marker_any_re.'				# list marker and space = $3
+				(?:[ ]+|(?=\n))	# space only required if item is not empty
+			)
+			((?s:.*?))						# list item text   = $4
+			(?:(\n+(?=\n))|\n)				# tailing blank line = $5
+			(?= \n* (\z | \2 ('.$marker_any_re.') (?:[ ]+|(?=\n))))
+			}xm',
+			array($this, '_processListItems_callback'), $list_str);
+
+		$this->list_level--;
+		return $list_str;
+	}
+	protected function _processListItems_callback($matches) {
+		$item = $matches[4];
+		$leading_line =& $matches[1];
+		$leading_space =& $matches[2];
+		$marker_space = $matches[3];
+		$tailing_blank_line =& $matches[5];
+
+		if ($leading_line || $tailing_blank_line || 
+			preg_match('/\n{2,}/', $item))
+		{
+			# Replace marker with the appropriate whitespace indentation
+			$item = $leading_space . str_repeat(' ', strlen($marker_space)) . $item;
+			$item = $this->runBlockGamut($this->outdent($item)."\n");
+		}
+		else {
+			# Recursion for sub-lists:
+			$item = $this->doLists($this->outdent($item));
+			$item = preg_replace('/\n+$/', '', $item);
+			$item = $this->runSpanGamut($item);
+		}
+
+		return "<li>" . $item . "</li>\n";
+	}
+
+
+	protected function doCodeBlocks($text) {
+	#
+	#	Process Markdown `<pre><code>` blocks.
+	#
+		$text = preg_replace_callback('{
+				(?:\n\n|\A\n?)
+				(	            # $1 = the code block -- one or more lines, starting with a space/tab
+				  (?>
+					[ ]{'.$this->tab_width.'}  # Lines must start with a tab or a tab-width of spaces
+					.*\n+
+				  )+
+				)
+				((?=^[ ]{0,'.$this->tab_width.'}\S)|\Z)	# Lookahead for non-space at line-start, or end of doc
+			}xm',
+			array($this, '_doCodeBlocks_callback'), $text);
+
+		return $text;
+	}
+	protected function _doCodeBlocks_callback($matches) {
+		$codeblock = $matches[1];
+
+		$codeblock = $this->outdent($codeblock);
+		$codeblock = htmlspecialchars($codeblock, ENT_NOQUOTES);
+
+		# trim leading newlines and trailing newlines
+		$codeblock = preg_replace('/\A\n+|\n+\z/', '', $codeblock);
+
+		$codeblock = "<pre><code>$codeblock\n</code></pre>";
+		return "\n\n".$this->hashBlock($codeblock)."\n\n";
+	}
+
+
+	protected function makeCodeSpan($code) {
+	#
+	# Create a code span markup for $code. Called from handleSpanToken.
+	#
+		$code = htmlspecialchars(trim($code), ENT_NOQUOTES);
+		return $this->hashPart("<code>$code</code>");
+	}
+
+
+	protected $em_relist = array(
+		''  => '(?:(?<!\*)\*(?!\*)|(?<!_)_(?!_))(?![\.,:;]?\s)',
+		'*' => '(?<![\s*])\*(?!\*)',
+		'_' => '(?<![\s_])_(?!_)',
+		);
+	protected $strong_relist = array(
+		''   => '(?:(?<!\*)\*\*(?!\*)|(?<!_)__(?!_))(?![\.,:;]?\s)',
+		'**' => '(?<![\s*])\*\*(?!\*)',
+		'__' => '(?<![\s_])__(?!_)',
+		);
+	protected $em_strong_relist = array(
+		''    => '(?:(?<!\*)\*\*\*(?!\*)|(?<!_)___(?!_))(?![\.,:;]?\s)',
+		'***' => '(?<![\s*])\*\*\*(?!\*)',
+		'___' => '(?<![\s_])___(?!_)',
+		);
+	protected $em_strong_prepared_relist;
+	
+	protected function prepareItalicsAndBold() {
+	#
+	# Prepare regular expressions for searching emphasis tokens in any
+	# context.
+	#
+		foreach ($this->em_relist as $em => $em_re) {
+			foreach ($this->strong_relist as $strong => $strong_re) {
+				# Construct list of allowed token expressions.
+				$token_relist = array();
+				if (isset($this->em_strong_relist["$em$strong"])) {
+					$token_relist[] = $this->em_strong_relist["$em$strong"];
+				}
+				$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"] = $token_re;
+			}
+		}
+	}
+	
+	protected function doItalicsAndBold($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 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.
+				while ($token_stack[0]) {
+					$text_stack[1] .= array_shift($token_stack);
+					$text_stack[0] .= array_shift($text_stack);
+				}
+				break;
+			}
+			
+			$token_len = strlen($token);
+			if ($tree_char_em) {
+				# Reached closing marker while inside a three-char emphasis.
+				if ($token_len == 3) {
+					# Three-char closing marker, close em and strong.
+					array_shift($token_stack);
+					$span = array_shift($text_stack);
+					$span = $this->runSpanGamut($span);
+					$span = "<strong><em>$span</em></strong>";
+					$text_stack[0] .= $this->hashPart($span);
+					$em = '';
+					$strong = '';
+				} else {
+					# Other closing marker: close one em or strong and
+					# change current token state to match the other
+					$token_stack[0] = str_repeat($token{0}, 3-$token_len);
+					$tag = $token_len == 2 ? "strong" : "em";
+					$span = $text_stack[0];
+					$span = $this->runSpanGamut($span);
+					$span = "<$tag>$span</$tag>";
+					$text_stack[0] = $this->hashPart($span);
+					$$tag = ''; # $$tag stands for $em or $strong
+				}
+				$tree_char_em = false;
+			} else if ($token_len == 3) {
+				if ($em) {
+					# Reached closing marker for both em and strong.
+					# Closing strong marker:
+					for ($i = 0; $i < 2; ++$i) {
+						$shifted_token = array_shift($token_stack);
+						$tag = strlen($shifted_token) == 2 ? "strong" : "em";
+						$span = array_shift($text_stack);
+						$span = $this->runSpanGamut($span);
+						$span = "<$tag>$span</$tag>";
+						$text_stack[0] .= $this->hashPart($span);
+						$$tag = ''; # $$tag stands for $em or $strong
+					}
+				} else {
+					# Reached opening three-char emphasis marker. Push on token 
+					# stack; will be handled by the special condition above.
+					$em = $token{0};
+					$strong = "$em$em";
+					array_unshift($token_stack, $token);
+					array_unshift($text_stack, '');
+					$tree_char_em = true;
+				}
+			} else if ($token_len == 2) {
+				if ($strong) {
+					# Unwind any dangling emphasis marker:
+					if (strlen($token_stack[0]) == 1) {
+						$text_stack[1] .= array_shift($token_stack);
+						$text_stack[0] .= array_shift($text_stack);
+					}
+					# Closing strong marker:
+					array_shift($token_stack);
+					$span = array_shift($text_stack);
+					$span = $this->runSpanGamut($span);
+					$span = "<strong>$span</strong>";
+					$text_stack[0] .= $this->hashPart($span);
+					$strong = '';
+				} else {
+					array_unshift($token_stack, $token);
+					array_unshift($text_stack, '');
+					$strong = $token;
+				}
+			} else {
+				# Here $token_len == 1
+				if ($em) {
+					if (strlen($token_stack[0]) == 1) {
+						# Closing emphasis marker:
+						array_shift($token_stack);
+						$span = array_shift($text_stack);
+						$span = $this->runSpanGamut($span);
+						$span = "<em>$span</em>";
+						$text_stack[0] .= $this->hashPart($span);
+						$em = '';
+					} else {
+						$text_stack[0] .= $token;
+					}
+				} else {
+					array_unshift($token_stack, $token);
+					array_unshift($text_stack, '');
+					$em = $token;
+				}
+			}
+		}
+		return $text_stack[0];
+	}
+
+
+	protected function doBlockQuotes($text) {
+		$text = preg_replace_callback('/
+			  (								# Wrap whole match in $1
+				(?>
+				  ^[ ]*>[ ]?			# ">" at the start of a line
+					.+\n					# rest of the first line
+				  (.+\n)*					# subsequent consecutive lines
+				  \n*						# blanks
+				)+
+			  )
+			/xm',
+			array($this, '_doBlockQuotes_callback'), $text);
+
+		return $text;
+	}
+	protected function _doBlockQuotes_callback($matches) {
+		$bq = $matches[1];
+		# trim one level of quoting - trim whitespace-only lines
+		$bq = preg_replace('/^[ ]*>[ ]?|^[ ]+$/m', '', $bq);
+		$bq = $this->runBlockGamut($bq);		# recurse
+
+		$bq = preg_replace('/^/m', "  ", $bq);
+		# 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);
+
+		return "\n". $this->hashBlock("<blockquote>\n$bq\n</blockquote>")."\n\n";
+	}
+	protected function _doBlockQuotes_callback2($matches) {
+		$pre = $matches[1];
+		$pre = preg_replace('/^  /m', '', $pre);
+		return $pre;
+	}
+
+
+	protected function formParagraphs($text) {
+	#
+	#	Params:
+	#		$text - string to process with html <p> tags
+	#
+		# Strip leading and trailing lines:
+		$text = preg_replace('/\A\n+|\n+\z/', '', $text);
+
+		$grafs = preg_split('/\n{2,}/', $text, -1, PREG_SPLIT_NO_EMPTY);
+
+		#
+		# Wrap <p> tags and unhashify HTML blocks
+		#
+		foreach ($grafs as $key => $value) {
+			if (!preg_match('/^B\x1A[0-9]+B$/', $value)) {
+				# Is a paragraph.
+				$value = $this->runSpanGamut($value);
+				$value = preg_replace('/^([ ]*)/', "<p>", $value);
+				$value .= "</p>";
+				$grafs[$key] = $this->unhash($value);
+			}
+			else {
+				# Is a block.
+				# Modify elements of @grafs in-place...
+				$graf = $value;
+				$block = $this->html_hashes[$graf];
+				$graf = $block;
+//				if (preg_match('{
+//					\A
+//					(							# $1 = <div> tag
+//					  <div  \s+
+//					  [^>]*
+//					  \b
+//					  markdown\s*=\s*  ([\'"])	#	$2 = attr quote char
+//					  1
+//					  \2
+//					  [^>]*
+//					  >
+//					)
+//					(							# $3 = contents
+//					.*
+//					)
+//					(</div>)					# $4 = closing tag
+//					\z
+//					}xs', $block, $matches))
+//				{
+//					list(, $div_open, , $div_content, $div_close) = $matches;
+//
+//					# 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);
+//					}
+//
+//					$div_open = preg_replace(
+//						'{\smarkdown\s*=\s*([\'"]).+?\1}', '', $div_open);
+//
+//					$graf = $div_open . "\n" . $div_content . "\n" . $div_close;
+//				}
+				$grafs[$key] = $graf;
+			}
+		}
+
+		return implode("\n\n", $grafs);
+	}
+
+
+	protected function encodeAttribute($text) {
+	#
+	# Encode text for a double-quoted HTML attribute. This function
+	# is *not* suitable for attributes enclosed in single quotes.
+	#
+		$text = $this->encodeAmpsAndAngles($text);
+		$text = str_replace('"', '&quot;', $text);
+		return $text;
+	}
+
+
+	protected function encodeURLAttribute($url, &$text = null) {
+	#
+	# Encode text for a double-quoted HTML attribute containing a URL,
+	# applying the URL filter if set. Also generates the textual
+	# representation for the URL (removing mailto: or tel:) storing it in $text.
+	# This function is *not* suitable for attributes enclosed in single quotes.
+	#
+		if ($this->url_filter_func)
+			$url = call_user_func($this->url_filter_func, $url);
+
+		if (preg_match('{^mailto:}i', $url))
+			$url = $this->encodeEntityObfuscatedAttribute($url, $text, 7);
+		else if (preg_match('{^tel:}i', $url))
+		{
+			$url = $this->encodeAttribute($url);
+			$text = substr($url, 4);
+		}
+		else
+		{
+			$url = $this->encodeAttribute($url);
+			$text = $url;
+		}
+
+		return $url;
+	}
+	
+	
+	protected function encodeAmpsAndAngles($text) {
+	#
+	# 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.
+	#
+		if ($this->no_entities) {
+			$text = str_replace('&', '&amp;', $text);
+		} 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+);)/', 
+								'&amp;', $text);
+		}
+		# Encode remaining <'s
+		$text = str_replace('<', '&lt;', $text);
+
+		return $text;
+	}
+
+
+	protected function doAutoLinks($text) {
+		$text = preg_replace_callback('{<((https?|ftp|dict|tel):[^\'">\s]+)>}i',
+			array($this, '_doAutoLinks_url_callback'), $text);
+
+		# Email addresses: <address@domain.foo>
+		$text = preg_replace_callback('{
+			<
+			(?:mailto:)?
+			(
+				(?:
+					[-!#$%&\'*+/=?^_`.{|}~\w\x80-\xFF]+
+				|
+					".*?"
+				)
+				\@
+				(?:
+					[-a-z0-9\x80-\xFF]+(\.[-a-z0-9\x80-\xFF]+)*\.[a-z]+
+				|
+					\[[\d.a-fA-F:]+\]	# IPv4 & IPv6
+				)
+			)
+			>
+			}xi',
+			array($this, '_doAutoLinks_email_callback'), $text);
+
+		return $text;
+	}
+	protected function _doAutoLinks_url_callback($matches) {
+		$url = $this->encodeURLAttribute($matches[1], $text);
+		$link = "<a href=\"$url\">$text</a>";
+		return $this->hashPart($link);
+	}
+	protected function _doAutoLinks_email_callback($matches) {
+		$addr = $matches[1];
+		$url = $this->encodeURLAttribute("mailto:$addr", $text);
+		$link = "<a href=\"$url\">$text</a>";
+		return $this->hashPart($link);
+	}
+
+
+	protected function encodeEntityObfuscatedAttribute($text, &$tail = null, $head_length = 0) {
+	#
+	#	Input: some text to obfuscate, e.g. "mailto:foo@example.com"
+	#
+	#	Output: the same text but with most characters encoded as either a
+	#		decimal or hex entity, in the hopes of foiling most address
+	#		harvesting spam bots. E.g.:
+	#
+	#        &#109;&#x61;&#105;&#x6c;&#116;&#x6f;&#58;&#x66;o&#111;
+	#        &#x40;&#101;&#x78;&#97;&#x6d;&#112;&#x6c;&#101;&#46;&#x63;&#111;
+	#        &#x6d;
+	#
+	#	Note: the additional output $tail is assigned the same value as the
+	#	ouput, minus the number of characters specified by $head_length.
+	#
+	#	Based by a filter by Matthew Wickline, posted to BBEdit-Talk.
+	#   With some optimizations by Milian Wolff. Forced encoding of HTML
+	#	attribute special characters by Allan Odgaard.
+	#
+		if ($text == "") return $tail = "";
+
+		$chars = preg_split('/(?<!^)(?!$)/', $text);
+		$seed = (int)abs(crc32($text) / strlen($text)); # Deterministic seed.
+
+		foreach ($chars as $key => $char) {
+			$ord = ord($char);
+			# Ignore non-ascii chars.
+			if ($ord < 128) {
+				$r = ($seed * (1 + $key)) % 100; # Pseudo-random function.
+				# roughly 10% raw, 45% hex, 45% dec
+				# '@' *must* be encoded. I insist.
+				# '"' and '>' have to be encoded inside the attribute
+				if ($r > 90 && strpos('@"&>', $char) === false) /* do nothing */;
+				else if ($r < 45) $chars[$key] = '&#x'.dechex($ord).';';
+				else              $chars[$key] = '&#'.$ord.';';
+			}
+		}
+
+		$text = implode('', $chars);
+		$tail = $head_length ? implode('', array_slice($chars, $head_length)) : $text;
+
+		return $text;
+	}
+
+
+	protected function parseSpan($str) {
+	#
+	# Take the string $str and parse it into tokens, hashing embeded HTML,
+	# escaped characters and handling code spans.
+	#
+		$output = '';
+		
+		$span_re = '{
+				(
+					\\\\'.$this->escape_chars_re.'
+				|
+					(?<![`\\\\])
+					`+						# code span marker
+			'.( $this->no_markup ? '' : '
+				|
+					<!--    .*?     -->		# comment
+				|
+					<\?.*?\?> | <%.*?%>		# processing instruction
+				|
+					<[!$]?[-a-zA-Z0-9:_]+	# regular tags
+					(?>
+						\s
+						(?>[^"\'>]+|"[^"]*"|\'[^\']*\')*
+					)?
+					>
+				|
+					<[-a-zA-Z0-9:_]+\s*/> # xml-style empty tag
+				|
+					</[-a-zA-Z0-9:_]+\s*> # closing tag
+			').'
+				)
+				}xs';
+
+		while (1) {
+			#
+			# 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]);
+				$str = $parts[2];
+			}
+			else {
+				break;
+			}
+		}
+		
+		return $output;
+	}
+	
+	
+	protected function handleSpanToken($token, &$str) {
+	#
+	# Handle $token provided by parseSpan by determining its nature and 
+	# returning the corresponding value that should replace it.
+	#
+		switch ($token{0}) {
+			case "\\":
+				return $this->hashPart("&#". ord($token{1}). ";");
+			case "`":
+				# Search for end marker in remaining text.
+				if (preg_match('/^(.*?[^`])'.preg_quote($token).'(?!`)(.*)$/sm', 
+					$str, $matches))
+				{
+					$str = $matches[2];
+					$codespan = $this->makeCodeSpan($matches[1]);
+					return $this->hashPart($codespan);
+				}
+				return $token; // return as text since no ending marker found.
+			default:
+				return $this->hashPart($token);
+		}
+	}
+
+
+	protected function outdent($text) {
+	#
+	# Remove one level of line-leading tabs or spaces
+	#
+		return preg_replace('/^(\t|[ ]{1,'.$this->tab_width.'})/m', '', $text);
+	}
+
+
+	# String length function for detab. `_initDetab` will create a function to 
+	# hanlde UTF-8 if the default function does not exist.
+	protected $utf8_strlen = 'mb_strlen';
+	
+	protected function detab($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 
+		# appropriate number of space between each blocks.
+		
+		$text = preg_replace_callback('/^.*\t.*$/m',
+			array($this, '_detab_callback'), $text);
+
+		return $text;
+	}
+	protected function _detab_callback($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.
+		$line = $blocks[0];
+		unset($blocks[0]); # Do not add first block twice.
+		foreach ($blocks as $block) {
+			# Calculate amount of space, insert spaces, insert block.
+			$amount = $this->tab_width - 
+				$strlen($line, 'UTF-8') % $this->tab_width;
+			$line .= str_repeat(" ", $amount) . $block;
+		}
+		return $line;
+	}
+	protected function _initDetab() {
+	#
+	# Check for the availability of the function in the `utf8_strlen` property
+	# (initially `mb_strlen`). If the function is not available, create a 
+	# function that will loosely count the number of UTF-8 characters with a
+	# regular expression.
+	#
+		if (function_exists($this->utf8_strlen)) return;
+		$this->utf8_strlen = create_function('$text', 'return preg_match_all(
+			"/[\\\\x00-\\\\xBF]|[\\\\xC0-\\\\xFF][\\\\x80-\\\\xBF]*/", 
+			$text, $m);');
+	}
+
+
+	protected function unhash($text) {
+	#
+	# Swap back in all the tags hashed by _HashHTMLBlocks.
+	#
+		return preg_replace_callback('/(.)\x1A[0-9]+\1/', 
+			array($this, '_unhash_callback'), $text);
+	}
+	protected function _unhash_callback($matches) {
+		return $this->html_hashes[$matches[0]];
+	}
+
+}
+
+
+#
+# Temporary Markdown Extra Parser Implementation Class
+#
+# NOTE: DON'T USE THIS CLASS
+# Currently the implementation of of Extra resides here in this temporary class.
+# This makes it easier to propagate the changes between the three different
+# packaging styles of PHP Markdown. When this issue is resolved, this
+# MarkdownExtra_TmpImpl class here will disappear and \Michelf\MarkdownExtra
+# will contain the code. So please use \Michelf\MarkdownExtra and ignore this
+# one.
+#
+
+abstract class _MarkdownExtra_TmpImpl extends \Michelf\Markdown {
+
+	### Configuration Variables ###
+
+	# Prefix for footnote ids.
+	public $fn_id_prefix = "";
+	
+	# Optional title attribute for footnote links and backlinks.
+	public $fn_link_title = "";
+	public $fn_backlink_title = "";
+	
+	# Optional class attribute for footnote links and backlinks.
+	public $fn_link_class = "footnote-ref";
+	public $fn_backlink_class = "footnote-backref";
+
+	# Class name for table cell alignment (%% replaced left/center/right)
+	# For instance: 'go-%%' becomes 'go-left' or 'go-right' or 'go-center'
+	# If empty, the align attribute is used instead of a class name.
+	public $table_align_class_tmpl = '';
+
+	# Optional class prefix for fenced code block.
+	public $code_class_prefix = "";
+	# Class attribute for code blocks goes on the `code` tag;
+	# setting this to true will put attributes on the `pre` tag instead.
+	public $code_attr_on_pre = false;
+	
+	# Predefined abbreviations.
+	public $predef_abbr = array();
+
+
+	### Parser Implementation ###
+
+	public function __construct() {
+	#
+	# Constructor function. Initialize the parser object.
+	#
+		# Add extra escapable characters before parent constructor 
+		# initialize the table.
+		$this->escape_chars .= ':|';
+		
+		# Insert extra document, block, and span transformations. 
+		# Parent constructor will do the sorting.
+		$this->document_gamut += array(
+			"doFencedCodeBlocks" => 5,
+			"stripFootnotes"     => 15,
+			"stripAbbreviations" => 25,
+			"appendFootnotes"    => 50,
+			);
+		$this->block_gamut += array(
+			"doFencedCodeBlocks" => 5,
+			"doTables"           => 15,
+			"doDefLists"         => 45,
+			);
+		$this->span_gamut += array(
+			"doFootnotes"        => 5,
+			"doAbbreviations"    => 70,
+			);
+		
+		parent::__construct();
+	}
+	
+	
+	# Extra variables used during extra transformations.
+	protected $footnotes = array();
+	protected $footnotes_ordered = array();
+	protected $footnotes_ref_count = array();
+	protected $footnotes_numbers = array();
+	protected $abbr_desciptions = array();
+	protected $abbr_word_re = '';
+	
+	# Give the current footnote number.
+	protected $footnote_counter = 1;
+	
+	
+	protected function setup() {
+	#
+	# Setting up Extra-specific variables.
+	#
+		parent::setup();
+		
+		$this->footnotes = array();
+		$this->footnotes_ordered = array();
+		$this->footnotes_ref_count = array();
+		$this->footnotes_numbers = 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 .= '|';
+			$this->abbr_word_re .= preg_quote($abbr_word);
+			$this->abbr_desciptions[$abbr_word] = trim($abbr_desc);
+		}
+	}
+	
+	protected function teardown() {
+	#
+	# Clearing Extra-specific variables.
+	#
+		$this->footnotes = array();
+		$this->footnotes_ordered = array();
+		$this->footnotes_ref_count = array();
+		$this->footnotes_numbers = array();
+		$this->abbr_desciptions = array();
+		$this->abbr_word_re = '';
+		
+		parent::teardown();
+	}
+	
+	
+	### Extra Attribute Parser ###
+
+	# Expression to use to catch attributes (includes the braces)
+	protected $id_class_attr_catch_re = '\{((?:[ ]*[#.a-z][-_:a-zA-Z0-9=]+){1,})[ ]*\}';
+	# Expression to use when parsing in a context when no capture is desired
+	protected $id_class_attr_nocatch_re = '\{(?:[ ]*[#.a-z][-_:a-zA-Z0-9=]+){1,}[ ]*\}';
+
+	protected function doExtraAttributes($tag_name, $attr) {
+	#
+	# Parse attributes caught by the $this->id_class_attr_catch_re expression
+	# and return the HTML-formatted list of attributes.
+	#
+	# Currently supported attributes are .class and #id.
+	#
+		if (empty($attr)) return "";
+		
+		# Split on components
+		preg_match_all('/[#.a-z][-_:a-zA-Z0-9=]+/', $attr, $matches);
+		$elements = $matches[0];
+
+		# handle classes and ids (only first id taken into account)
+		$classes = array();
+		$attributes = array();
+		$id = false;
+		foreach ($elements as $element) {
+			if ($element{0} == '.') {
+				$classes[] = substr($element, 1);
+			} else if ($element{0} == '#') {
+				if ($id === false) $id = substr($element, 1);
+			} else if (strpos($element, '=') > 0) {
+				$parts = explode('=', $element, 2);
+				$attributes[] = $parts[0] . '="' . $parts[1] . '"';
+			}
+		}
+
+		# compose attributes as string
+		$attr_str = "";
+		if (!empty($id)) {
+			$attr_str .= ' id="'.$id.'"';
+		}
+		if (!empty($classes)) {
+			$attr_str .= ' class="'.implode(" ", $classes).'"';
+		}
+		if (!$this->no_markup && !empty($attributes)) {
+			$attr_str .= ' '.implode(" ", $attributes);
+		}
+		return $attr_str;
+	}
+
+
+	protected function stripLinkDefinitions($text) {
+	#
+	# Strips link definitions from text, stores the URLs and titles in
+	# hash references.
+	#
+		$less_than_tab = $this->tab_width - 1;
+
+		# Link defs are in the form: ^[id]: url "optional title"
+		$text = preg_replace_callback('{
+							^[ ]{0,'.$less_than_tab.'}\[(.+)\][ ]?:	# id = $1
+							  [ ]*
+							  \n?				# maybe *one* newline
+							  [ ]*
+							(?:
+							  <(.+?)>			# url = $2
+							|
+							  (\S+?)			# url = $3
+							)
+							  [ ]*
+							  \n?				# maybe one newline
+							  [ ]*
+							(?:
+								(?<=\s)			# lookbehind for whitespace
+								["(]
+								(.*?)			# title = $4
+								[")]
+								[ ]*
+							)?	# title is optional
+					(?:[ ]* '.$this->id_class_attr_catch_re.' )?  # $5 = extra id & class attr
+							(?:\n+|\Z)
+			}xm',
+			array($this, '_stripLinkDefinitions_callback'),
+			$text);
+		return $text;
+	}
+	protected function _stripLinkDefinitions_callback($matches) {
+		$link_id = strtolower($matches[1]);
+		$url = $matches[2] == '' ? $matches[3] : $matches[2];
+		$this->urls[$link_id] = $url;
+		$this->titles[$link_id] =& $matches[4];
+		$this->ref_attr[$link_id] = $this->doExtraAttributes("", $dummy =& $matches[5]);
+		return ''; # String that will replace the block
+	}
+
+
+	### HTML Block Parser ###
+	
+	# Tags that are always treated as block tags:
+	protected $block_tags_re = 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|form|fieldset|iframe|hr|legend|article|section|nav|aside|hgroup|header|footer|figcaption|figure';
+						   
+	# Tags treated as block tags only if the opening tag is alone on its line:
+	protected $context_block_tags_re = 'script|noscript|style|ins|del|iframe|object|source|track|param|math|svg|canvas|audio|video';
+	
+	# Tags where markdown="1" default to span mode:
+	protected $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 
+	# they appear:
+	protected $clean_tags_re = 'script|style|math|svg';
+	
+	# Tags that do not need to be closed.
+	protected $auto_close_tags_re = 'hr|img|param|source|track';
+	
+
+	protected function hashHTMLBlocks($text) {
+	#
+	# Hashify HTML Blocks and "clean tags".
+	#
+	# We only want to do this for block-level HTML tags, such as headers,
+	# lists, and tables. That's because we still want to wrap <p>s around
+	# "paragraphs" that are wrapped in non-block-level tags, such as anchors,
+	# phrase emphasis, and spans. The list of tags we're looking for is
+	# hard-coded.
+	#
+	# This works by calling _HashHTMLBlocks_InMarkdown, which then calls
+	# _HashHTMLBlocks_InHTML when it encounter block tags. When the markdown="1" 
+	# attribute is found within 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!
+	#
+		if ($this->no_markup)  return $text;
+
+		#
+		# Call the HTML-in-Markdown hasher.
+		#
+		list($text, ) = $this->_hashHTMLBlocks_inMarkdown($text);
+		
+		return $text;
+	}
+	protected function _hashHTMLBlocks_inMarkdown($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 
+	#     account, something like this (which looks right) won't work as expected:
+	#
+	#     <div>
+	#         <div markdown="1">
+	#         Hello World.  <-- Is this a Markdown code block or text?
+	#         </div>  <-- Is this a Markdown code block or a real tag?
+	#     <div>
+	#
+	#     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 
+	#     tag with that name. Nested tags supported.
+	#
+	# *   If $span is true, text inside must treated as span. So any double 
+	#     newline will be replaced by a single newline so that it does not create 
+	#     paragraphs.
+	#
+	# Returns an array of that form: ( processed text , remaining text )
+	#
+		if ($text === '') return array('', '');
+
+		# Regex to check for the presense of newlines around a block tag.
+		$newline_before_re = '/(?:^\n?|\n\n)*$/';
+		$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 =
+			'{
+				(					# $2: Capture whole tag.
+					</?					# Any opening or closing tag.
+						(?>				# Tag name.
+							'.$this->block_tags_re.'			|
+							'.$this->context_block_tags_re.'	|
+							'.$this->clean_tags_re.'        	|
+							(?!\s)'.$enclosing_tag_re.'
+						)
+						(?:
+							(?=[\s"\'/a-zA-Z0-9])	# Allowed characters after tag name.
+							(?>
+								".*?"		|	# Double quotes (can contain `>`)
+								\'.*?\'   	|	# Single quotes (can contain `>`)
+								.+?				# Anything but quotes and `>`.
+							)*?
+						)?
+					>					# End of tag.
+				|
+					<!--    .*?     -->	# HTML Comment
+				|
+					<\?.*?\?> | <%.*?%>	# Processing instruction
+				|
+					<!\[CDATA\[.*?\]\]>	# CData Block
+				'. ( !$span ? ' # If not in span.
+				|
+					# Indented code block
+					(?: ^[ ]*\n | ^ | \n[ ]*\n )
+					[ ]{'.($indent+4).'}[^\n]* \n
+					(?>
+						(?: [ ]{'.($indent+4).'}[^\n]* | [ ]* ) \n
+					)*
+				|
+					# Fenced code block marker
+					(?<= ^ | \n )
+					[ ]{0,'.($indent+3).'}(?:~{3,}|`{3,})
+									[ ]*
+					(?:
+					\.?[-_:a-zA-Z0-9]+ # standalone class name
+					|
+						'.$this->id_class_attr_nocatch_re.' # extra attributes
+					)?
+					[ ]*
+					(?= \n )
+				' : '' ). ' # End (if not is span).
+				|
+					# Code span marker
+					# Note, this regex needs to go after backtick fenced
+					# code blocks but it should also be kept outside of the
+					# "if not in span" condition adding backticks to the parser
+					`+
+				)
+			}xs';
+
+		
+		$depth = 0;		# Current depth inside the tag tree.
+		$parsed = "";	# Parsed text that will be returned.
+
+		#
+		# Loop through every tag until we find the closing tag of the parent
+		# or loop until reaching the end of text if no parent tag specified.
+		#
+		do {
+			#
+			# 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 
+			# by the pattern.
+			#
+			$parts = preg_split($block_tag_re, $text, 2, 
+								PREG_SPLIT_DELIM_CAPTURE);
+			
+			# If in Markdown span mode, add a empty-string span-level hash 
+			# after each newline to prevent triggering any block element.
+			if ($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: Fenced code block marker.
+			# Note: need to recheck the whole tag to disambiguate backtick
+			# fences from code spans
+			#
+			if (preg_match('{^\n?([ ]{0,'.($indent+3).'})(~{3,}|`{3,})[ ]*(?:\.?[-_:a-zA-Z0-9]+|'.$this->id_class_attr_nocatch_re.')?[ ]*\n?$}', $tag, $capture)) {
+				# Fenced code block marker: find matching end marker.
+				$fence_indent = strlen($capture[1]); # use captured indent in re
+				$fence_re = $capture[2]; # use captured fence in re
+				if (preg_match('{^(?>.*\n)*?[ ]{'.($fence_indent).'}'.$fence_re.'[ ]*(?:\n|$)}', $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 .= $tag;
+				}
+			}
+			#
+			# Check for: Indented code block.
+			#
+			else if ($tag{0} == "\n" || $tag{0} == " ") {
+				# Indented code block: pass it unchanged, will be handled 
+				# later.
+				$parsed .= $tag;
+			}
+			#
+			# Check for: Code span marker
+			# Note: need to check this after backtick fenced code blocks
+			#
+			else if ($tag{0} == "`") {
+				# Find corresponding end marker.
+				$tag_re = preg_quote($tag);
+				if (preg_match('{^(?>.+?|\n(?!\n))*?(?<!`)'.$tag_re.'(?!`)}',
+					$text, $matches))
+				{
+					# End marker found: pass text unchanged until marker.
+					$parsed .= $tag . $matches[0];
+					$text = substr($text, strlen($matches[0]));
+				}
+				else {
+					# Unmatched marker: just skip it.
+					$parsed .= $tag;
+				}
+			}
+			#
+			# Check for: Opening Block level tag or
+			#            Opening Context Block tag (like ins and del) 
+			#               used as a block tag (tag is alone on it's line).
+			#
+			else if (preg_match('{^<(?:'.$this->block_tags_re.')\b}', $tag) ||
+				(	preg_match('{^<(?:'.$this->context_block_tags_re.')\b}', $tag) &&
+					preg_match($newline_before_re, $parsed) &&
+					preg_match($newline_after_re, $text)	)
+				)
+			{
+				# Need to parse tag and following text using the HTML parser.
+				list($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";
+			}
+			#
+			# Check for: Clean tag (like script, math)
+			#            HTML Comments, processing instructions.
+			#
+			else if (preg_match('{^<(?:'.$this->clean_tags_re.')\b}', $tag) ||
+				$tag{1} == '!' || $tag{1} == '?')
+			{
+				# Need to parse tag and following text using the HTML parser.
+				# (don't check for markdown attribute)
+				list($block_text, $text) = 
+					$this->_hashHTMLBlocks_inHTML($tag . $text, "hashClean", false);
+				
+				$parsed .= $block_text;
+			}
+			#
+			# Check for: Tag with same name as enclosing tag.
+			#
+			else if ($enclosing_tag_re !== '' &&
+				# Same name as enclosing tag.
+				preg_match('{^</?(?:'.$enclosing_tag_re.')\b}', $tag))
+			{
+				#
+				# Increase/decrease nested tag count.
+				#
+				if ($tag{1} == '/')						$depth--;
+				else if ($tag{strlen($tag)-2} != '/')	$depth++;
+
+				if ($depth < 0) {
+					#
+					# Going out of parent element. Clean up and break so we
+					# return to the calling function.
+					#
+					$text = $tag . $text;
+					break;
+				}
+				
+				$parsed .= $tag;
+			}
+			else {
+				$parsed .= $tag;
+			}
+		} while ($depth >= 0);
+		
+		return array($parsed, $text);
+	}
+	protected function _hashHTMLBlocks_inHTML($text, $hash_method, $md_attr) {
+	#
+	# Parse HTML, calling _HashHTMLBlocks_InMarkdown for block tags.
+	#
+	# *   Calls $hash_method to convert any blocks.
+	# *   Stops when the first opening tag closes.
+	# *   $md_attr indicate if the use of the `markdown="1"` attribute is allowed.
+	#     (it is not inside clean tags)
+	#
+	# Returns an array of that form: ( processed text , remaining text )
+	#
+		if ($text === '') return array('', '');
+		
+		# Regex to match `markdown` attribute inside of a tag.
+		$markdown_attr_re = '
+			{
+				\s*			# Eat whitespace before the `markdown` attribute
+				markdown
+				\s*=\s*
+				(?>
+					(["\'])		# $1: quote delimiter		
+					(.*?)		# $2: attribute value
+					\1			# matching delimiter	
+				|
+					([^\s>]*)	# $3: unquoted attribute value
+				)
+				()				# $4: make $3 always defined (avoid warnings)
+			}xs';
+		
+		# Regex to match any tag.
+		$tag_re = '{
+				(					# $2: Capture whole tag.
+					</?					# Any opening or closing tag.
+						[\w:$]+			# Tag name.
+						(?:
+							(?=[\s"\'/a-zA-Z0-9])	# Allowed characters after tag name.
+							(?>
+								".*?"		|	# Double quotes (can contain `>`)
+								\'.*?\'   	|	# Single quotes (can contain `>`)
+								.+?				# Anything but quotes and `>`.
+							)*?
+						)?
+					>					# End of tag.
+				|
+					<!--    .*?     -->	# HTML Comment
+				|
+					<\?.*?\?> | <%.*?%>	# Processing instruction
+				|
+					<!\[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.
+
+		#
+		# Get the name of the starting tag.
+		# (This pattern makes $base_tag_name_re safe without quoting.)
+		#
+		if (preg_match('/^<([\w:$]*)\b/', $text, $matches))
+			$base_tag_name_re = $matches[1];
+
+		#
+		# Loop through every tag until we find the corresponding closing tag.
+		#
+		do {
+			#
+			# 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 
+			# by the pattern.
+			#
+			$parts = preg_split($tag_re, $text, 2, PREG_SPLIT_DELIM_CAPTURE);
+			
+			if (count($parts) < 3) {
+				#
+				# End of $text reached with unbalenced tag(s).
+				# In that case, we return original text unchanged and pass the
+				# first character as filtered to prevent an infinite loop in the 
+				# parent function.
+				#
+				return array($original_text{0}, substr($original_text, 1));
+			}
+			
+			$block_text .= $parts[0]; # Text before current tag.
+			$tag         = $parts[1]; # Tag to handle.
+			$text        = $parts[2]; # Remaining text after current tag.
+			
+			#
+			# Check for: Auto-close tag (like <hr/>)
+			#			 Comments and Processing Instructions.
+			#
+			if (preg_match('{^</?(?:'.$this->auto_close_tags_re.')\b}', $tag) ||
+				$tag{1} == '!' || $tag{1} == '?')
+			{
+				# Just add the tag to the block as if it was text.
+				$block_text .= $tag;
+			}
+			else {
+				#
+				# Increase/decrease nested tag count. Only do so if
+				# the tag's name match base tag's.
+				#
+				if (preg_match('{^</?'.$base_tag_name_re.'\b}', $tag)) {
+					if ($tag{1} == '/')						$depth--;
+					else if ($tag{strlen($tag)-2} != '/')	$depth++;
+				}
+				
+				#
+				# Check for `markdown="1"` attribute and handle it.
+				#
+				if ($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;
+						$indent = $strlen($matches[1], 'UTF-8');
+					} 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, 
+							$tag_name_re, $span_mode);
+					
+					# Outdent markdown text.
+					if ($indent > 0) {
+						$block_text = preg_replace("/^[ ]{1,$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 with 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, $text);
+	}
+
+
+	protected function hashClean($text) {
+	#
+	# Called whenever a tag must be hashed when a function inserts a "clean" tag
+	# in $text, it passes through this function and is automaticaly escaped, 
+	# blocking invalid nested overlap.
+	#
+		return $this->hashPart($text, 'C');
+	}
+
+
+	protected function doAnchors($text) {
+	#
+	# Turn Markdown link shortcuts into XHTML <a> tags.
+	#
+		if ($this->in_anchor) return $text;
+		$this->in_anchor = true;
+		
+		#
+		# First, handle reference-style links: [link text] [id]
+		#
+		$text = preg_replace_callback('{
+			(					# wrap whole match in $1
+			  \[
+				('.$this->nested_brackets_re.')	# link text = $2
+			  \]
+
+			  [ ]?				# one optional space
+			  (?:\n[ ]*)?		# one optional newline followed by spaces
+
+			  \[
+				(.*?)		# id = $3
+			  \]
+			)
+			}xs',
+			array($this, '_doAnchors_reference_callback'), $text);
+
+		#
+		# Next, inline-style links: [link text](url "optional title")
+		#
+		$text = preg_replace_callback('{
+			(				# wrap whole match in $1
+			  \[
+				('.$this->nested_brackets_re.')	# link text = $2
+			  \]
+			  \(			# literal paren
+				[ \n]*
+				(?:
+					<(.+?)>	# href = $3
+				|
+					('.$this->nested_url_parenthesis_re.')	# href = $4
+				)
+				[ \n]*
+				(			# $5
+				  ([\'"])	# quote char = $6
+				  (.*?)		# Title = $7
+				  \6		# matching quote
+				  [ \n]*	# ignore any spaces/tabs between closing quote and )
+				)?			# title is optional
+			  \)
+			  (?:[ ]? '.$this->id_class_attr_catch_re.' )?	 # $8 = id/class attributes
+			)
+			}xs',
+			array($this, '_doAnchors_inline_callback'), $text);
+
+		#
+		# Last, handle reference-style shortcuts: [link text]
+		# 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);
+
+		$this->in_anchor = false;
+		return $text;
+	}
+	protected function _doAnchors_reference_callback($matches) {
+		$whole_match =  $matches[1];
+		$link_text   =  $matches[2];
+		$link_id     =& $matches[3];
+
+		if ($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 = $this->encodeURLAttribute($url);
+			
+			$result = "<a href=\"$url\"";
+			if ( isset( $this->titles[$link_id] ) ) {
+				$title = $this->titles[$link_id];
+				$title = $this->encodeAttribute($title);
+				$result .=  " title=\"$title\"";
+			}
+			if (isset($this->ref_attr[$link_id]))
+				$result .= $this->ref_attr[$link_id];
+		
+			$link_text = $this->runSpanGamut($link_text);
+			$result .= ">$link_text</a>";
+			$result = $this->hashPart($result);
+		}
+		else {
+			$result = $whole_match;
+		}
+		return $result;
+	}
+	protected function _doAnchors_inline_callback($matches) {
+		$whole_match	=  $matches[1];
+		$link_text		=  $this->runSpanGamut($matches[2]);
+		$url			=  $matches[3] == '' ? $matches[4] : $matches[3];
+		$title			=& $matches[7];
+		$attr  = $this->doExtraAttributes("a", $dummy =& $matches[8]);
+
+		// if the URL was of the form <s p a c e s> it got caught by the HTML
+		// tag parser and hashed. Need to reverse the process before using the URL.
+		$unhashed = $this->unhash($url);
+		if ($unhashed != $url)
+			$url = preg_replace('/^<(.*)>$/', '\1', $unhashed);
+
+		$url = $this->encodeURLAttribute($url);
+
+		$result = "<a href=\"$url\"";
+		if (isset($title)) {
+			$title = $this->encodeAttribute($title);
+			$result .=  " title=\"$title\"";
+		}
+		$result .= $attr;
+		
+		$link_text = $this->runSpanGamut($link_text);
+		$result .= ">$link_text</a>";
+
+		return $this->hashPart($result);
+	}
+
+
+	protected function doImages($text) {
+	#
+	# Turn Markdown image shortcuts into <img> tags.
+	#
+		#
+		# First, handle reference-style labeled images: ![alt text][id]
+		#
+		$text = preg_replace_callback('{
+			(				# wrap whole match in $1
+			  !\[
+				('.$this->nested_brackets_re.')		# alt text = $2
+			  \]
+
+			  [ ]?				# one optional space
+			  (?:\n[ ]*)?		# one optional newline followed by spaces
+
+			  \[
+				(.*?)		# id = $3
+			  \]
+
+			)
+			}xs', 
+			array($this, '_doImages_reference_callback'), $text);
+
+		#
+		# Next, handle inline images:  ![alt text](url "optional title")
+		# Don't forget: encode * and _
+		#
+		$text = preg_replace_callback('{
+			(				# wrap whole match in $1
+			  !\[
+				('.$this->nested_brackets_re.')		# alt text = $2
+			  \]
+			  \s?			# One optional whitespace character
+			  \(			# literal paren
+				[ \n]*
+				(?:
+					<(\S*)>	# src url = $3
+				|
+					('.$this->nested_url_parenthesis_re.')	# src url = $4
+				)
+				[ \n]*
+				(			# $5
+				  ([\'"])	# quote char = $6
+				  (.*?)		# title = $7
+				  \6		# matching quote
+				  [ \n]*
+				)?			# title is optional
+			  \)
+			  (?:[ ]? '.$this->id_class_attr_catch_re.' )?	 # $8 = id/class attributes
+			)
+			}xs',
+			array($this, '_doImages_inline_callback'), $text);
+
+		return $text;
+	}
+	protected function _doImages_reference_callback($matches) {
+		$whole_match = $matches[1];
+		$alt_text    = $matches[2];
+		$link_id     = strtolower($matches[3]);
+
+		if ($link_id == "") {
+			$link_id = strtolower($alt_text); # for shortcut links like ![this][].
+		}
+
+		$alt_text = $this->encodeAttribute($alt_text);
+		if (isset($this->urls[$link_id])) {
+			$url = $this->encodeURLAttribute($this->urls[$link_id]);
+			$result = "<img src=\"$url\" alt=\"$alt_text\"";
+			if (isset($this->titles[$link_id])) {
+				$title = $this->titles[$link_id];
+				$title = $this->encodeAttribute($title);
+				$result .=  " title=\"$title\"";
+			}
+			if (isset($this->ref_attr[$link_id]))
+				$result .= $this->ref_attr[$link_id];
+			$result .= $this->empty_element_suffix;
+			$result = $this->hashPart($result);
+		}
+		else {
+			# If there's no such link ID, leave intact:
+			$result = $whole_match;
+		}
+
+		return $result;
+	}
+	protected function _doImages_inline_callback($matches) {
+		$whole_match	= $matches[1];
+		$alt_text		= $matches[2];
+		$url			= $matches[3] == '' ? $matches[4] : $matches[3];
+		$title			=& $matches[7];
+		$attr  = $this->doExtraAttributes("img", $dummy =& $matches[8]);
+
+		$alt_text = $this->encodeAttribute($alt_text);
+		$url = $this->encodeURLAttribute($url);
+		$result = "<img src=\"$url\" alt=\"$alt_text\"";
+		if (isset($title)) {
+			$title = $this->encodeAttribute($title);
+			$result .=  " title=\"$title\""; # $title already quoted
+		}
+		$result .= $attr;
+		$result .= $this->empty_element_suffix;
+
+		return $this->hashPart($result);
+	}
+
+
+	protected function doHeaders($text) {
+	#
+	# Redefined to add id and class attribute support.
+	#
+		# Setext-style headers:
+		#	  Header 1  {#header1}
+		#	  ========
+		#  
+		#	  Header 2  {#header2 .class1 .class2}
+		#	  --------
+		#
+		$text = preg_replace_callback(
+			'{
+				(^.+?)								# $1: Header text
+				(?:[ ]+ '.$this->id_class_attr_catch_re.' )?	 # $3 = id/class attributes
+				[ ]*\n(=+|-+)[ ]*\n+				# $3: Header footer
+			}mx',
+			array($this, '_doHeaders_callback_setext'), $text);
+
+		# atx-style headers:
+		#	# Header 1        {#header1}
+		#	## Header 2       {#header2}
+		#	## Header 2 with closing hashes ##  {#header3.class1.class2}
+		#	...
+		#	###### Header 6   {.class2}
+		#
+		$text = preg_replace_callback('{
+				^(\#{1,6})	# $1 = string of #\'s
+				[ ]*
+				(.+?)		# $2 = Header text
+				[ ]*
+				\#*			# optional closing #\'s (not counted)
+				(?:[ ]+ '.$this->id_class_attr_catch_re.' )?	 # $3 = id/class attributes
+				[ ]*
+				\n+
+			}xm',
+			array($this, '_doHeaders_callback_atx'), $text);
+
+		return $text;
+	}
+	protected function _doHeaders_callback_setext($matches) {
+		if ($matches[3] == '-' && preg_match('{^- }', $matches[1]))
+			return $matches[0];
+		$level = $matches[3]{0} == '=' ? 1 : 2;
+		$attr  = $this->doExtraAttributes("h$level", $dummy =& $matches[2]);
+		$block = "<h$level$attr>".$this->runSpanGamut($matches[1])."</h$level>";
+		return "\n" . $this->hashBlock($block) . "\n\n";
+	}
+	protected function _doHeaders_callback_atx($matches) {
+		$level = strlen($matches[1]);
+		$attr  = $this->doExtraAttributes("h$level", $dummy =& $matches[3]);
+		$block = "<h$level$attr>".$this->runSpanGamut($matches[2])."</h$level>";
+		return "\n" . $this->hashBlock($block) . "\n\n";
+	}
+
+
+	protected function doTables($text) {
+	#
+	# Form HTML tables.
+	#
+		$less_than_tab = $this->tab_width - 1;
+		#
+		# Find tables with leading pipe.
+		#
+		#	| Header 1 | Header 2
+		#	| -------- | --------
+		#	| Cell 1   | Cell 2
+		#	| Cell 3   | Cell 4
+		#
+		$text = preg_replace_callback('
+			{
+				^							# Start of a line
+				[ ]{0,'.$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
+				
+				(							# $3: Cells
+					(?>
+						[ ]*				# Allowed whitespace.
+						[|] .* \n			# Row content.
+					)*
+				)
+				(?=\n|\Z)					# Stop at final double newline.
+			}xm',
+			array($this, '_doTable_leadingPipe_callback'), $text);
+		
+		#
+		# Find tables without leading pipe.
+		#
+		#	Header 1 | Header 2
+		#	-------- | --------
+		#	Cell 1   | Cell 2
+		#	Cell 3   | Cell 4
+		#
+		$text = preg_replace_callback('
+			{
+				^							# Start of a line
+				[ ]{0,'.$less_than_tab.'}	# Allowed whitespace.
+				(\S.*[|].*) \n				# $1: Header row (at least one pipe)
+				
+				[ ]{0,'.$less_than_tab.'}	# Allowed whitespace.
+				([-:]+[ ]*[|][-| :]*) \n	# $2: Header underline
+				
+				(							# $3: Cells
+					(?>
+						.* [|] .* \n		# Row content
+					)*
+				)
+				(?=\n|\Z)					# Stop at final double newline.
+			}xm',
+			array($this, '_DoTable_callback'), $text);
+
+		return $text;
+	}
+	protected function _doTable_leadingPipe_callback($matches) {
+		$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, $content));
+	}
+	protected function _doTable_makeAlignAttr($alignname)
+	{
+		if (empty($this->table_align_class_tmpl))
+			return " align=\"$alignname\"";
+
+		$classname = str_replace('%%', $alignname, $this->table_align_class_tmpl);
+		return " class=\"$classname\"";
+	}
+	protected function _doTable_callback($matches) {
+		$head		= $matches[1];
+		$underline	= $matches[2];
+		$content	= $matches[3];
+
+		# Remove any tailing pipes for each line.
+		$head		= preg_replace('/[|] *$/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 => $s) {
+			if (preg_match('/^ *-+: *$/', $s))
+				$attr[$n] = $this->_doTable_makeAlignAttr('right');
+			else if (preg_match('/^ *:-+: *$/', $s))
+				$attr[$n] = $this->_doTable_makeAlignAttr('center');
+			else if (preg_match('/^ *:-+ *$/', $s))
+				$attr[$n] = $this->_doTable_makeAlignAttr('left');
+			else
+				$attr[$n] = '';
+		}
+		
+		# 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);
+		$attr       = array_pad($attr, $col_count, '');
+		
+		# Write column headers.
+		$text = "<table>\n";
+		$text .= "<thead>\n";
+		$text .= "<tr>\n";
+		foreach ($headers as $n => $header)
+			$text .= "  <th$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, 
+			# 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";
+			$text .= "</tr>\n";
+		}
+		$text .= "</tbody>\n";
+		$text .= "</table>";
+		
+		return $this->hashBlock($text) . "\n";
+	}
+
+	
+	protected function doDefLists($text) {
+	#
+	# Form HTML definition lists.
+	#
+		$less_than_tab = $this->tab_width - 1;
+
+		# Re-usable pattern to match any entire dl list:
+		$whole_list_re = '(?>
+			(								# $1 = whole list
+			  (								# $2
+				[ ]{0,'.$less_than_tab.'}
+				((?>.*\S.*\n)+)				# $3 = defined term
+				\n?
+				[ ]{0,'.$less_than_tab.'}:[ ]+ # colon starting definition
+			  )
+			  (?s:.+?)
+			  (								# $4
+				  \z
+				|
+				  \n{2,}
+				  (?=\S)
+				  (?!						# Negative lookahead for another term
+					[ ]{0,'.$less_than_tab.'}
+					(?: \S.*\n )+?			# defined term
+					\n?
+					[ ]{0,'.$less_than_tab.'}:[ ]+ # colon starting definition
+				  )
+				  (?!						# Negative lookahead for another definition
+					[ ]{0,'.$less_than_tab.'}:[ ]+ # colon starting definition
+				  )
+			  )
+			)
+		)'; // mx
+
+		$text = preg_replace_callback('{
+				(?>\A\n?|(?<=\n\n))
+				'.$whole_list_re.'
+			}mx',
+			array($this, '_doDefLists_callback'), $text);
+
+		return $text;
+	}
+	protected function _doDefLists_callback($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));
+		$result = "<dl>\n" . $result . "\n</dl>";
+		return $this->hashBlock($result) . "\n\n";
+	}
+
+
+	protected function processDefListItems($list_str) {
+	#
+	#	Process the contents of a single definition list, splitting it
+	#	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);
+
+		# Process definition terms.
+		$list_str = preg_replace_callback('{
+			(?>\A\n?|\n\n+)					# leading line
+			(								# definition terms = $1
+				[ ]{0,'.$less_than_tab.'}	# leading whitespace
+				(?!\:[ ]|[ ])				# negative lookahead for a definition
+											#   mark (colon) or more whitespace.
+				(?> \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);
+
+		# Process actual definitions.
+		$list_str = preg_replace_callback('{
+			\n(\n+)?						# leading line = $1
+			(								# marker space = $2
+				[ ]{0,'.$less_than_tab.'}	# whitespace before colon
+				\:[ ]+						# definition mark (colon)
+			)
+			((?s:.+?))						# definition text = $3
+			(?= \n+ 						# stop at next definition mark,
+				(?:							# next term or end of text
+					[ ]{0,'.$less_than_tab.'} \:[ ]	|
+					<dt> | \z
+				)						
+			)					
+			}xm',
+			array($this, '_processDefListItems_callback_dd'), $list_str);
+
+		return $list_str;
+	}
+	protected function _processDefListItems_callback_dt($matches) {
+		$terms = explode("\n", trim($matches[1]));
+		$text = '';
+		foreach ($terms as $term) {
+			$term = $this->runSpanGamut(trim($term));
+			$text .= "\n<dt>" . $term . "</dt>";
+		}
+		return $text . "\n";
+	}
+	protected function _processDefListItems_callback_dd($matches) {
+		$leading_line	= $matches[1];
+		$marker_space	= $matches[2];
+		$def			= $matches[3];
+
+		if ($leading_line || preg_match('/\n{2,}/', $def)) {
+			# Replace marker with the appropriate whitespace indentation
+			$def = str_repeat(' ', strlen($marker_space)) . $def;
+			$def = $this->runBlockGamut($this->outdent($def . "\n\n"));
+			$def = "\n". $def ."\n";
+		}
+		else {
+			$def = rtrim($def);
+			$def = $this->runSpanGamut($this->outdent($def));
+		}
+
+		return "\n<dd>" . $def . "</dd>\n";
+	}
+
+
+	protected function doFencedCodeBlocks($text) {
+	#
+	# Adding the fenced code block syntax to regular Markdown:
+	#
+	# ~~~
+	# Code block
+	# ~~~
+	#
+		$less_than_tab = $this->tab_width;
+		
+		$text = preg_replace_callback('{
+				(?:\n|\A)
+				# 1: Opening marker
+				(
+					(?:~{3,}|`{3,}) # 3 or more tildes/backticks.
+				)
+				[ ]*
+				(?:
+					\.?([-_:a-zA-Z0-9]+) # 2: standalone class name
+				|
+					'.$this->id_class_attr_catch_re.' # 3: Extra attributes
+				)?
+				[ ]* \n # Whitespace and newline following marker.
+				
+				# 4: Content
+				(
+					(?>
+						(?!\1 [ ]* \n)	# Not a closing marker.
+						.*\n+
+					)+
+				)
+				
+				# Closing marker.
+				\1 [ ]* (?= \n )
+			}xm',
+			array($this, '_doFencedCodeBlocks_callback'), $text);
+
+		return $text;
+	}
+	protected function _doFencedCodeBlocks_callback($matches) {
+		$classname =& $matches[2];
+		$attrs     =& $matches[3];
+		$codeblock = $matches[4];
+		$codeblock = htmlspecialchars($codeblock, ENT_NOQUOTES);
+		$codeblock = preg_replace_callback('/^\n+/',
+			array($this, '_doFencedCodeBlocks_newlines'), $codeblock);
+
+		if ($classname != "") {
+			if ($classname{0} == '.')
+				$classname = substr($classname, 1);
+			$attr_str = ' class="'.$this->code_class_prefix.$classname.'"';
+		} else {
+			$attr_str = $this->doExtraAttributes($this->code_attr_on_pre ? "pre" : "code", $attrs);
+		}
+		$pre_attr_str  = $this->code_attr_on_pre ? $attr_str : '';
+		$code_attr_str = $this->code_attr_on_pre ? '' : $attr_str;
+		$codeblock  = "<pre$pre_attr_str><code$code_attr_str>$codeblock</code></pre>";
+		
+		return "\n\n".$this->hashBlock($codeblock)."\n\n";
+	}
+	protected function _doFencedCodeBlocks_newlines($matches) {
+		return str_repeat("<br$this->empty_element_suffix", 
+			strlen($matches[0]));
+	}
+
+
+	#
+	# Redefining emphasis markers so that emphasis by underscore does not
+	# work in the middle of a word.
+	#
+	protected $em_relist = array(
+		''  => '(?:(?<!\*)\*(?!\*)|(?<![a-zA-Z0-9_])_(?!_))(?![\.,:;]?\s)',
+		'*' => '(?<![\s*])\*(?!\*)',
+		'_' => '(?<![\s_])_(?![a-zA-Z0-9_])',
+		);
+	protected $strong_relist = array(
+		''   => '(?:(?<!\*)\*\*(?!\*)|(?<![a-zA-Z0-9_])__(?!_))(?![\.,:;]?\s)',
+		'**' => '(?<![\s*])\*\*(?!\*)',
+		'__' => '(?<![\s_])__(?![a-zA-Z0-9_])',
+		);
+	protected $em_strong_relist = array(
+		''    => '(?:(?<!\*)\*\*\*(?!\*)|(?<![a-zA-Z0-9_])___(?!_))(?![\.,:;]?\s)',
+		'***' => '(?<![\s*])\*\*\*(?!\*)',
+		'___' => '(?<![\s_])___(?![a-zA-Z0-9_])',
+		);
+
+
+	protected function formParagraphs($text) {
+	#
+	#	Params:
+	#		$text - string to process with html <p> tags
+	#
+		# Strip leading and trailing lines:
+		$text = preg_replace('/\A\n+|\n+\z/', '', $text);
+		
+		$grafs = preg_split('/\n{2,}/', $text, -1, PREG_SPLIT_NO_EMPTY);
+
+		#
+		# Wrap <p> tags and unhashify HTML blocks
+		#
+		foreach ($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. 
+		$text = implode("\n\n", $grafs);
+		
+		# Finish by removing any tag hashes still present in $text.
+		$text = $this->unhash($text);
+		
+		return $text;
+	}
+	
+	
+	### Footnotes
+	
+	protected function stripFootnotes($text) {
+	#
+	# Strips link definitions from text, stores the URLs and titles in
+	# hash references.
+	#
+		$less_than_tab = $this->tab_width - 1;
+
+		# Link defs are in the form: [^id]: url "optional title"
+		$text = preg_replace_callback('{
+			^[ ]{0,'.$less_than_tab.'}\[\^(.+?)\][ ]?:	# note_id = $1
+			  [ ]*
+			  \n?					# maybe *one* newline
+			(						# text = $2 (no blank lines allowed)
+				(?:					
+					.+				# actual text
+				|
+					\n				# newlines but 
+					(?!\[.+?\][ ]?:\s)# negative lookahead for footnote or link definition marker.
+					(?!\n+[ ]{0,3}\S)# ensure line is not blank and followed 
+									# by non-indented content
+				)*
+			)		
+			}xm',
+			array($this, '_stripFootnotes_callback'),
+			$text);
+		return $text;
+	}
+	protected function _stripFootnotes_callback($matches) {
+		$note_id = $this->fn_id_prefix . $matches[1];
+		$this->footnotes[$note_id] = $this->outdent($matches[2]);
+		return ''; # String that will replace the block
+	}
+
+
+	protected function doFootnotes($text) {
+	#
+	# 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) {
+			$text = preg_replace('{\[\^(.+?)\]}', "F\x1Afn:\\1\x1A:", $text);
+		}
+		return $text;
+	}
+
+	
+	protected function appendFootnotes($text) {
+	#
+	# Append footnote list to text.
+	#
+		$text = preg_replace_callback('{F\x1Afn:(.*?)\x1A:}', 
+			array($this, '_appendFootnotes_callback'), $text);
+	
+		if (!empty($this->footnotes_ordered)) {
+			$text .= "\n\n";
+			$text .= "<div class=\"footnotes\">\n";
+			$text .= "<hr". $this->empty_element_suffix ."\n";
+			$text .= "<ol>\n\n";
+
+			$attr = "";
+			if ($this->fn_backlink_class != "") {
+				$class = $this->fn_backlink_class;
+				$class = $this->encodeAttribute($class);
+				$attr .= " class=\"$class\"";
+			}
+			if ($this->fn_backlink_title != "") {
+				$title = $this->fn_backlink_title;
+				$title = $this->encodeAttribute($title);
+				$attr .= " title=\"$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]);
+				$ref_count = $this->footnotes_ref_count[$note_id];
+				unset($this->footnotes_ref_count[$note_id]);
+				unset($this->footnotes[$note_id]);
+				
+				$footnote .= "\n"; # Need to append newline before parsing.
+				$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);
+
+				# Prepare backlink, multiple backlinks if multiple references
+				$backlink = "<a href=\"#fnref:$note_id\"$attr>&#8617;</a>";
+				for ($ref_num = 2; $ref_num <= $ref_count; ++$ref_num) {
+					$backlink .= " <a href=\"#fnref$ref_num:$note_id\"$attr>&#8617;</a>";
+				}
+				# Add backlink to last paragraph; create new paragraph if needed.
+				if (preg_match('{</p>$}', $footnote)) {
+					$footnote = substr($footnote, 0, -4) . "&#160;$backlink</p>";
+				} 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>";
+		}
+		return $text;
+	}
+	protected function _appendFootnotes_callback($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])) {
+			$num =& $this->footnotes_numbers[$node_id];
+			if (!isset($num)) {
+				# Transfer footnote content to the ordered list and give it its
+				# number
+				$this->footnotes_ordered[$node_id] = $this->footnotes[$node_id];
+				$this->footnotes_ref_count[$node_id] = 1;
+				$num = $this->footnote_counter++;
+				$ref_count_mark = '';
+			} else {
+				$ref_count_mark = $this->footnotes_ref_count[$node_id] += 1;
+			}
+
+			$attr = "";
+			if ($this->fn_link_class != "") {
+				$class = $this->fn_link_class;
+				$class = $this->encodeAttribute($class);
+				$attr .= " class=\"$class\"";
+			}
+			if ($this->fn_link_title != "") {
+				$title = $this->fn_link_title;
+				$title = $this->encodeAttribute($title);
+				$attr .= " title=\"$title\"";
+			}
+			
+			$attr = str_replace("%%", $num, $attr);
+			$node_id = $this->encodeAttribute($node_id);
+			
+			return
+				"<sup id=\"fnref$ref_count_mark:$node_id\">".
+				"<a href=\"#fn:$node_id\"$attr>$num</a>".
+				"</sup>";
+		}
+		
+		return "[^".$matches[1]."]";
+	}
+		
+	
+	### Abbreviations ###
+	
+	protected function stripAbbreviations($text) {
+	#
+	# Strips abbreviations from text, stores titles in hash references.
+	#
+		$less_than_tab = $this->tab_width - 1;
+
+		# Link defs are in the form: [id]*: url "optional title"
+		$text = preg_replace_callback('{
+			^[ ]{0,'.$less_than_tab.'}\*\[(.+?)\][ ]?:	# abbr_id = $1
+			(.*)					# text = $2 (no blank lines allowed)	
+			}xm',
+			array($this, '_stripAbbreviations_callback'),
+			$text);
+		return $text;
+	}
+	protected function _stripAbbreviations_callback($matches) {
+		$abbr_word = $matches[1];
+		$abbr_desc = $matches[2];
+		if ($this->abbr_word_re)
+			$this->abbr_word_re .= '|';
+		$this->abbr_word_re .= preg_quote($abbr_word);
+		$this->abbr_desciptions[$abbr_word] = trim($abbr_desc);
+		return ''; # String that will replace the block
+	}
+	
+	
+	protected function doAbbreviations($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 
+			// contain significant spaces:
+			$text = preg_replace_callback('{'.
+				'(?<![\w\x1A])'.
+				'(?:'.$this->abbr_word_re.')'.
+				'(?![\w\x1A])'.
+				'}', 
+				array($this, '_doAbbreviations_callback'), $text);
+		}
+		return $text;
+	}
+	protected function _doAbbreviations_callback($matches) {
+		$abbr = $matches[0];
+		if (isset($this->abbr_desciptions[$abbr])) {
+			$desc = $this->abbr_desciptions[$abbr];
+			if (empty($desc)) {
+				return $this->hashPart("<abbr>$abbr</abbr>");
+			} else {
+				$desc = $this->encodeAttribute($desc);
+				return $this->hashPart("<abbr title=\"$desc\">$abbr</abbr>");
+			}
+		} else {
+			return $matches[0];
+		}
+	}
+
+}
diff --git a/library/php-markdown/Michelf/MarkdownExtra.inc.php b/library/php-markdown/Michelf/MarkdownExtra.inc.php
new file mode 100644
index 0000000000..e11b1ef971
--- /dev/null
+++ b/library/php-markdown/Michelf/MarkdownExtra.inc.php
@@ -0,0 +1,11 @@
+<?php
+
+# Use this file if you cannot use class autoloading. It will include all the
+# files needed for the MarkdownExtra parser.
+#
+# Take a look at the PSR-0-compatible class autoloading implementation
+# in the Readme.php file if you want a simple autoloader setup.
+
+require_once dirname(__FILE__) . '/MarkdownInterface.php';
+require_once dirname(__FILE__) . '/Markdown.php';
+require_once dirname(__FILE__) . '/MarkdownExtra.php';
diff --git a/library/php-markdown/Michelf/MarkdownExtra.php b/library/php-markdown/Michelf/MarkdownExtra.php
new file mode 100644
index 0000000000..89822e4c20
--- /dev/null
+++ b/library/php-markdown/Michelf/MarkdownExtra.php
@@ -0,0 +1,38 @@
+<?php
+#
+# Markdown Extra  -  A text-to-HTML conversion tool for web writers
+#
+# PHP Markdown Extra
+# Copyright (c) 2004-2014 Michel Fortin  
+# <http://michelf.com/projects/php-markdown/>
+#
+# Original Markdown
+# Copyright (c) 2004-2006 John Gruber  
+# <http://daringfireball.net/projects/markdown/>
+#
+namespace Michelf;
+
+
+# Just force Michelf/Markdown.php to load. This is needed to load
+# the temporary implementation class. See below for details.
+\Michelf\Markdown::MARKDOWNLIB_VERSION;
+
+#
+# Markdown Extra Parser Class
+#
+# Note: Currently the implementation resides in the temporary class
+# \Michelf\MarkdownExtra_TmpImpl (in the same file as \Michelf\Markdown).
+# This makes it easier to propagate the changes between the three different
+# packaging styles of PHP Markdown. Once this issue is resolved, the
+# _MarkdownExtra_TmpImpl will disappear and this one will contain the code.
+#
+
+class MarkdownExtra extends \Michelf\_MarkdownExtra_TmpImpl {
+
+	### Parser Implementation ###
+
+	# Temporarily, the implemenation is in the _MarkdownExtra_TmpImpl class.
+	# See note above.
+
+}
+
diff --git a/library/php-markdown/Michelf/MarkdownInterface.inc.php b/library/php-markdown/Michelf/MarkdownInterface.inc.php
new file mode 100644
index 0000000000..a023ed4e3a
--- /dev/null
+++ b/library/php-markdown/Michelf/MarkdownInterface.inc.php
@@ -0,0 +1,9 @@
+<?php
+
+# Use this file if you cannot use class autoloading. It will include all the
+# files needed for the MarkdownInterface interface.
+#
+# Take a look at the PSR-0-compatible class autoloading implementation
+# in the Readme.php file if you want a simple autoloader setup.
+
+require_once dirname(__FILE__) . '/MarkdownInterface.php';
diff --git a/library/php-markdown/Michelf/MarkdownInterface.php b/library/php-markdown/Michelf/MarkdownInterface.php
new file mode 100644
index 0000000000..e4c2931f32
--- /dev/null
+++ b/library/php-markdown/Michelf/MarkdownInterface.php
@@ -0,0 +1,34 @@
+<?php
+#
+# Markdown  -  A text-to-HTML conversion tool for web writers
+#
+# PHP Markdown
+# Copyright (c) 2004-2014 Michel Fortin
+# <http://michelf.com/projects/php-markdown/>
+#
+# Original Markdown
+# Copyright (c) 2004-2006 John Gruber
+# <http://daringfireball.net/projects/markdown/>
+#
+namespace Michelf;
+
+
+#
+# Markdown Parser Interface
+#
+
+interface MarkdownInterface {
+
+  #
+  # Initialize the parser and return the result of its transform method.
+  # This will work fine for derived classes too.
+  #
+  public static function defaultTransform($text);
+
+  #
+  # Main function. Performs some preprocessing on the input text
+  # and pass it through the document gamut.
+  #
+  public function transform($text);
+
+}
diff --git a/library/php-markdown/Readme.md b/library/php-markdown/Readme.md
new file mode 100644
index 0000000000..80504c27c2
--- /dev/null
+++ b/library/php-markdown/Readme.md
@@ -0,0 +1,315 @@
+PHP Markdown
+============
+
+PHP Markdown Lib 1.4.1 - 4 May 2013
+
+by Michel Fortin  
+<http://michelf.ca/>
+
+based on Markdown by John Gruber  
+<http://daringfireball.net/>
+
+
+Introduction
+------------
+
+This is a library package that includes the PHP Markdown parser and its 
+sibling PHP Markdown Extra with additional features.
+
+Markdown is a text-to-HTML conversion tool for web writers. Markdown
+allows you to write using an easy-to-read, easy-to-write plain text
+format, then convert it to structurally valid XHTML (or HTML).
+
+"Markdown" is actually two things: a plain text markup syntax, and a 
+software tool, originally written in Perl, that converts the plain text 
+markup to HTML. PHP Markdown is a port to PHP of the original Markdown 
+program by John Gruber.
+
+*	[Full documentation of the Markdown syntax](<http://daringfireball.net/projects/markdown/>)
+	- Daring Fireball (John Gruber)
+*	[Markdown Extra syntax additions](<http://michelf.ca/projects/php-markdown/extra/>)
+	- Michel Fortin
+
+
+Requirement
+-----------
+
+This library package requires PHP 5.3 or later.
+
+Note: The older plugin/library hybrid package for PHP Markdown and
+PHP Markdown Extra is still maintained and will work with PHP 4.0.5 and later.
+
+Before PHP 5.3.7, pcre.backtrack_limit defaults to 100 000, which is too small
+in many situations. You might need to set it to higher values. Later PHP 
+releases defaults to 1 000 000, which is usually fine.
+
+
+Usage
+-----
+
+This library package is meant to be used with class autoloading. For autoloading 
+to work, your project needs have setup a PSR-0-compatible autoloader. See the 
+included Readme.php file for a minimal autoloader setup. (If you cannot use 
+autoloading, see below.)
+
+With class autoloading in place, putting the 'Michelf' folder in your 
+include path should be enough for this to work:
+
+	use \Michelf\Markdown;
+	$my_html = Markdown::defaultTransform($my_text);
+
+Markdown Extra syntax is also available the same way:
+
+	use \Michelf\MarkdownExtra;
+	$my_html = MarkdownExtra::defaultTransform($my_text);
+
+If you wish to use PHP Markdown with another text filter function 
+built to parse HTML, you should filter the text *after* the `transform`
+function call. This is an example with [PHP SmartyPants][psp]:
+
+	use \Michelf\Markdown, \Michelf\SmartyPants;
+	$my_html = Markdown::defaultTransform($my_text);
+	$my_html = SmartyPants::defaultTransform($my_html);
+
+All these examples are using the static `defaultTransform` static function 
+found inside the parser class. If you want to customize the parser 
+configuration, you can also instantiate it directly and change some 
+configuration variables:
+
+	use \Michelf\MarkdownExtra;
+	$parser = new MarkdownExtra;
+	$parser->fn_id_prefix = "post22-";
+	$my_html = $parser->transform($my_text);
+
+To learn more, see the full list of [configuration variables].
+
+ [configuration variables]: http://michelf.ca/projects/php-markdown/configuration/
+
+
+### Usage without an autoloader
+
+If you cannot use class autoloading, you can still use `include` or `require` 
+to access the parser. To load the `\Michelf\Markdown` parser, do it this way:
+
+	require_once 'Michelf/Markdown.inc.php';
+
+Or, if you need the `\Michelf\MarkdownExtra` parser:
+
+	require_once 'Michelf/MarkdownExtra.inc.php';
+
+While the plain `.php` files depend on autoloading to work correctly, using the
+`.inc.php` files instead will eagerly load the dependencies that would be 
+loaded on demand if you were using autoloading.
+
+
+Public API and Versioning Policy
+---------------------------------
+
+Version numbers are of the form *major*.*minor*.*patch*.
+
+The public API of PHP Markdown consist of the two parser classes `Markdown`
+and `MarkdownExtra`, their constructors, the `transform` and `defaultTransform`
+functions and their configuration variables. The public API is stable for
+a given major version number. It might get additions when the minor version
+number increments.
+
+**Protected members are not considered public API.** This is unconventional 
+and deserves an explanation. Incrementing the major version number every time 
+the underlying implementation of something changes is going to give
+nonessential version numbers for the vast majority of people who just use the
+parser.  Protected members are meant to create parser subclasses that behave in
+different ways. Very few people create parser subclasses. I don't want to 
+discourage it by making everything private, but at the same time I can't 
+guarantee any stable hook between versions if you use protected members.
+
+**Syntax changes** will increment the minor number for new features, and the 
+patch number for small corrections. A *new feature* is something that needs a 
+change in the syntax documentation. Note that since PHP Markdown Lib includes
+two parsers, a syntax change for either of them will increment the minor 
+number. Also note that there is nothing perfectly backward-compatible with the
+Markdown syntax: all inputs are always valid, so new features always replace
+something that was previously legal, although generally nonsensical to do.
+
+
+Bugs
+----
+
+To file bug reports please send email to:
+<michel.fortin@michelf.ca>
+
+Please include with your report: (1) the example input; (2) the output you
+expected; (3) the output PHP Markdown actually produced.
+
+If you have a problem where Markdown gives you an empty result, first check 
+that the backtrack limit is not too low by running `php --info | grep pcre`.
+See Installation and Requirement above for details.
+
+
+Development and Testing
+-----------------------
+
+Pull requests for fixing bugs are welcome. Proposed new features are
+going meticulously reviewed -- taking into account backward compatibility, 
+potential side effects, and future extensibility -- before deciding on
+acceptance or rejection.
+
+If you make a pull request that includes changes to the parser please add 
+tests for what is being changed to [MDTest][] and make a pull request there 
+too.
+
+ [MDTest]: https://github.com/michelf/mdtest/
+
+
+Donations
+---------
+
+If you wish to make a donation that will help me devote more time to 
+PHP Markdown, please visit [michelf.ca/donate] or send Bitcoin to
+[1HiuX34czvVPPdhXbUAsAu7pZcesniDCGH].
+
+ [michelf.ca/donate]: https://michelf.ca/donate/#!Thanks%20for%20PHP%20Markdown
+ [1HiuX34czvVPPdhXbUAsAu7pZcesniDCGH]: bitcoin:1HiuX34czvVPPdhXbUAsAu7pZcesniDCGH
+
+
+Version History
+---------------
+
+Unreleased
+
+*	Added the ability to insert custom HTML attributes everywhere an extra
+	attribute block is allowed (links, images, headers). Credits to
+	Peter Droogmans for providing the implementation.
+
+*	Added a `url_filter_func` configuration variable which takes a function
+	that can rewrite any link or image URL to something different.
+
+
+PHP Markdown Lib 1.4.1 (4 May 2014)
+
+*	The HTML block parser will now treat `<figure>` as a block-level element
+	(as it should) and no longer wrap it in `<p>` or parse it's content with 
+	the as Markdown syntax (although with Extra you can use `markdown="1"`
+	if you wish to use the Markdown syntax inside it).
+
+*	The content of `<style>` elements will now be left alone, its content
+	won't be interpreted as Markdown.
+
+*	Corrected an bug where some inline links with spaces in them would not
+	work even when surounded with angle brackets:
+	
+		[link](<s p a c e s>)
+
+*	Fixed an issue where email addresses with quotes in them would not always
+	have the quotes escaped in the link attribute, causing broken links (and
+	invalid HTML).
+
+*	Fixed the case were a link definition following a footnote definition would
+	be swallowed by the footnote unless it was separated by a blank line.
+
+
+PHP Markdown Lib 1.4.0 (29 Nov 2013)
+
+*	Added support for the `tel:` URL scheme in automatic links.
+
+		<tel:+1-111-111-1111>
+	
+	It gets converted to this (note the `tel:` prefix becomes invisible):
+	
+		<a href="tel:+1-111-111-1111">+1-111-111-1111</a>
+
+*	Added backtick fenced code blocks to MarkdownExtra, originally from
+	Github-Flavored Markdown.
+
+*	Added an interface called MarkdownInterface implemented by both
+	the Markdown and MarkdownExtra parsers. You can use the interface if
+	you want to create a mockup parser object for unit testing.
+
+*	For those of you who cannot use class autoloading, you can now
+	include `Michelf/Markdown.inc.php` or `Michelf/MarkdownExtra.inc.php` (note 
+	the 	`.inc.php` extension) to automatically include other files required
+	by the parser.
+
+
+PHP Markdown Lib 1.3 (11 Apr 2013)
+
+This is the first release of PHP Markdown Lib. This package requires PHP 
+version 5.3 or later and is designed to work with PSR-0 autoloading and, 
+optionally with Composer. Here is a list of the changes since 
+PHP Markdown Extra 1.2.6:
+
+*	Plugin interface for WordPress and other systems is no longer present in
+	the Lib package. The classic package is still available if you need it:
+	<http://michelf.ca/projects/php-markdown/classic/>
+
+*	Added `public` and `protected` protection attributes, plus a section about
+	what is "public API" and what isn't in the Readme file.
+
+*	Changed HTML output for footnotes: now instead of adding `rel` and `rev`
+	attributes, footnotes links have the class name `footnote-ref` and
+	backlinks `footnote-backref`.
+
+*	Fixed some regular expressions to make PCRE not shout warnings about POSIX
+	collation classes (dependent on your version of PCRE).
+
+*	Added optional class and id attributes to images and links using the same
+	syntax as for headers:
+
+		[link](url){#id .class}  
+		![img](url){#id .class}
+	
+	It work too for reference-style links and images. In this case you need
+	to put those attributes at the reference definition:
+
+		[link][linkref] or [linkref]  
+		![img][linkref]
+		
+		[linkref]: url "optional title" {#id .class}
+
+*	Fixed a PHP notice message triggered when some table column separator 
+	markers are missing on the separator line below column headers.
+
+*	Fixed a small mistake that could cause the parser to retain an invalid
+	state related to parsing links across multiple runs. This was never 
+	observed (that I know of), but it's still worth fixing.
+
+
+Copyright and License
+---------------------
+
+PHP Markdown Lib
+Copyright (c) 2004-2014 Michel Fortin
+<http://michelf.ca/>  
+All rights reserved.
+
+Based on Markdown  
+Copyright (c) 2003-2005 John Gruber   
+<http://daringfireball.net/>   
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+*   Redistributions of source code must retain the above copyright 
+    notice, this list of conditions and the following disclaimer.
+
+*   Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the 
+    distribution.
+
+*   Neither the name "Markdown" nor the names of its contributors may
+    be used to endorse or promote products derived from this software
+    without specific prior written permission.
+
+This software is provided by the copyright holders and contributors "as
+is" and any express or implied warranties, including, but not limited
+to, the implied warranties of merchantability and fitness for a
+particular purpose are disclaimed. In no event shall the copyright owner
+or contributors be liable for any direct, indirect, incidental, special,
+exemplary, or consequential damages (including, but not limited to,
+procurement of substitute goods or services; loss of use, data, or
+profits; or business interruption) however caused and on any theory of
+liability, whether in contract, strict liability, or tort (including
+negligence or otherwise) arising in any way out of the use of this
+software, even if advised of the possibility of such damage.
diff --git a/library/php-markdown/Readme.php b/library/php-markdown/Readme.php
new file mode 100644
index 0000000000..d007b119f2
--- /dev/null
+++ b/library/php-markdown/Readme.php
@@ -0,0 +1,31 @@
+<?php
+
+# This file passes the content of the Readme.md file in the same directory
+# through the Markdown filter. You can adapt this sample code in any way
+# you like.
+
+# Install PSR-0-compatible class autoloader
+spl_autoload_register(function($class){
+	require preg_replace('{\\\\|_(?!.*\\\\)}', DIRECTORY_SEPARATOR, ltrim($class, '\\')).'.php';
+});
+
+# Get Markdown class
+use \Michelf\Markdown;
+
+# Read file and pass content through the Markdown parser
+$text = file_get_contents('Readme.md');
+$html = Markdown::defaultTransform($text);
+
+?>
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>PHP Markdown Lib - Readme</title>
+    </head>
+    <body>
+		<?php
+			# Put HTML content in the document
+			echo $html;
+		?>
+    </body>
+</html>
diff --git a/library/php-markdown/composer.json b/library/php-markdown/composer.json
new file mode 100644
index 0000000000..45abc67744
--- /dev/null
+++ b/library/php-markdown/composer.json
@@ -0,0 +1,31 @@
+{
+	"name": "michelf/php-markdown",
+	"type": "library",
+	"description": "PHP Markdown",
+	"homepage": "http://michelf.ca/projects/php-markdown/",
+	"keywords": ["markdown"],
+	"license": "BSD-3-Clause",
+	"authors": [
+		{
+			"name": "Michel Fortin",
+			"email": "michel.fortin@michelf.ca",
+			"homepage": "http://michelf.ca/",
+			"role": "Developer"
+		},
+		{
+			"name": "John Gruber",
+			"homepage": "http://daringfireball.net/"
+		}
+	],
+	"require": {
+		"php": ">=5.3.0"
+	},
+	"autoload": {
+ 		"psr-0": { "Michelf": "" }
+	},
+	"extra": {
+		"branch-alias": {
+			"dev-lib": "1.4.x-dev"
+		}
+	}
+}
diff --git a/library/php-markdown/markdown.php b/library/php-markdown/markdown.php
new file mode 100644
index 0000000000..8958e8c842
--- /dev/null
+++ b/library/php-markdown/markdown.php
@@ -0,0 +1,17 @@
+<?php
+//# Install PSR-0-compatible class autoloader
+//spl_autoload_register(function($class){
+//	require preg_replace('{\\\\|_(?!.*\\\\)}', DIRECTORY_SEPARATOR, ltrim($class, '\\')).'.php';
+//});
+
+require_once("library/php-markdown/Michelf/MarkdownExtra.inc.php");
+# Get Markdown class
+use \Michelf\MarkdownExtra;
+
+function Markdown($text) {
+	# Read file and pass content through the Markdown parser
+	$html = MarkdownExtra::defaultTransform($text);
+
+	return $html;
+}
+?>

From 884b8b03db6cd4f7c581c27ed698a8d69a0c41a4 Mon Sep 17 00:00:00 2001
From: Michael Vogel <icarus@dabo.de>
Date: Mon, 23 Feb 2015 12:47:57 +0100
Subject: [PATCH 05/13] Cleaned up the Markdown files.

---
 library/parsedown/.travis.yml      |    8 -
 library/parsedown/LICENSE.txt      |   20 -
 library/parsedown/Parsedown.php    | 1528 ----------------------------
 library/parsedown/README.md        |   48 -
 library/parsedown/composer.json    |   18 -
 library/parsedown/phpunit.xml.dist |    8 -
 library/php-markdown/markdown.php  |   17 -
 7 files changed, 1647 deletions(-)
 delete mode 100644 library/parsedown/.travis.yml
 delete mode 100644 library/parsedown/LICENSE.txt
 delete mode 100755 library/parsedown/Parsedown.php
 delete mode 100644 library/parsedown/README.md
 delete mode 100644 library/parsedown/composer.json
 delete mode 100644 library/parsedown/phpunit.xml.dist
 delete mode 100644 library/php-markdown/markdown.php

diff --git a/library/parsedown/.travis.yml b/library/parsedown/.travis.yml
deleted file mode 100644
index 7d782fe192..0000000000
--- a/library/parsedown/.travis.yml
+++ /dev/null
@@ -1,8 +0,0 @@
-language: php
-
-php:
-  - 5.6
-  - 5.5
-  - 5.4
-  - 5.3
-  - hhvm
diff --git a/library/parsedown/LICENSE.txt b/library/parsedown/LICENSE.txt
deleted file mode 100644
index baca86f5b8..0000000000
--- a/library/parsedown/LICENSE.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2013 Emanuil Rusev, erusev.com
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-the Software, and to permit persons to whom the Software is furnished to do so,
-subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
-COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/library/parsedown/Parsedown.php b/library/parsedown/Parsedown.php
deleted file mode 100755
index 9bdae2221e..0000000000
--- a/library/parsedown/Parsedown.php
+++ /dev/null
@@ -1,1528 +0,0 @@
-<?php
-
-#
-#
-# Parsedown
-# http://parsedown.org
-#
-# (c) Emanuil Rusev
-# http://erusev.com
-#
-# For the full license information, view the LICENSE file that was distributed
-# with this source code.
-#
-#
-
-class Parsedown
-{
-    # ~
-
-    const version = '1.5.1';
-
-    # ~
-
-    function text($text)
-    {
-        # make sure no definitions are set
-        $this->DefinitionData = array();
-
-        # standardize line breaks
-        $text = str_replace(array("\r\n", "\r"), "\n", $text);
-
-        # remove surrounding line breaks
-        $text = trim($text, "\n");
-
-        # split text into lines
-        $lines = explode("\n", $text);
-
-        # iterate through lines to identify blocks
-        $markup = $this->lines($lines);
-
-        # trim line breaks
-        $markup = trim($markup, "\n");
-
-        return $markup;
-    }
-
-    #
-    # Setters
-    #
-
-    function setBreaksEnabled($breaksEnabled)
-    {
-        $this->breaksEnabled = $breaksEnabled;
-
-        return $this;
-    }
-
-    protected $breaksEnabled;
-
-    function setMarkupEscaped($markupEscaped)
-    {
-        $this->markupEscaped = $markupEscaped;
-
-        return $this;
-    }
-
-    protected $markupEscaped;
-
-    function setUrlsLinked($urlsLinked)
-    {
-        $this->urlsLinked = $urlsLinked;
-
-        return $this;
-    }
-
-    protected $urlsLinked = true;
-
-    #
-    # Lines
-    #
-
-    protected $BlockTypes = array(
-        '#' => array('Header'),
-        '*' => array('Rule', 'List'),
-        '+' => array('List'),
-        '-' => array('SetextHeader', 'Table', 'Rule', 'List'),
-        '0' => array('List'),
-        '1' => array('List'),
-        '2' => array('List'),
-        '3' => array('List'),
-        '4' => array('List'),
-        '5' => array('List'),
-        '6' => array('List'),
-        '7' => array('List'),
-        '8' => array('List'),
-        '9' => array('List'),
-        ':' => array('Table'),
-        '<' => array('Comment', 'Markup'),
-        '=' => array('SetextHeader'),
-        '>' => array('Quote'),
-        '[' => array('Reference'),
-        '_' => array('Rule'),
-        '`' => array('FencedCode'),
-        '|' => array('Table'),
-        '~' => array('FencedCode'),
-    );
-
-    # ~
-
-    protected $DefinitionTypes = array(
-        '[' => array('Reference'),
-    );
-
-    # ~
-
-    protected $unmarkedBlockTypes = array(
-        'Code',
-    );
-
-    #
-    # Blocks
-    #
-
-    private function lines(array $lines)
-    {
-        $CurrentBlock = null;
-
-        foreach ($lines as $line)
-        {
-            if (chop($line) === '')
-            {
-                if (isset($CurrentBlock))
-                {
-                    $CurrentBlock['interrupted'] = true;
-                }
-
-                continue;
-            }
-
-            if (strpos($line, "\t") !== false)
-            {
-                $parts = explode("\t", $line);
-
-                $line = $parts[0];
-
-                unset($parts[0]);
-
-                foreach ($parts as $part)
-                {
-                    $shortage = 4 - mb_strlen($line, 'utf-8') % 4;
-
-                    $line .= str_repeat(' ', $shortage);
-                    $line .= $part;
-                }
-            }
-
-            $indent = 0;
-
-            while (isset($line[$indent]) and $line[$indent] === ' ')
-            {
-                $indent ++;
-            }
-
-            $text = $indent > 0 ? substr($line, $indent) : $line;
-
-            # ~
-
-            $Line = array('body' => $line, 'indent' => $indent, 'text' => $text);
-
-            # ~
-
-            if (isset($CurrentBlock['incomplete']))
-            {
-                $Block = $this->{'block'.$CurrentBlock['type'].'Continue'}($Line, $CurrentBlock);
-
-                if (isset($Block))
-                {
-                    $CurrentBlock = $Block;
-
-                    continue;
-                }
-                else
-                {
-                    if (method_exists($this, 'block'.$CurrentBlock['type'].'Complete'))
-                    {
-                        $CurrentBlock = $this->{'block'.$CurrentBlock['type'].'Complete'}($CurrentBlock);
-                    }
-
-                    unset($CurrentBlock['incomplete']);
-                }
-            }
-
-            # ~
-
-            $marker = $text[0];
-
-            # ~
-
-            $blockTypes = $this->unmarkedBlockTypes;
-
-            if (isset($this->BlockTypes[$marker]))
-            {
-                foreach ($this->BlockTypes[$marker] as $blockType)
-                {
-                    $blockTypes []= $blockType;
-                }
-            }
-
-            #
-            # ~
-
-            foreach ($blockTypes as $blockType)
-            {
-                $Block = $this->{'block'.$blockType}($Line, $CurrentBlock);
-
-                if (isset($Block))
-                {
-                    $Block['type'] = $blockType;
-
-                    if ( ! isset($Block['identified']))
-                    {
-                        $Blocks []= $CurrentBlock;
-
-                        $Block['identified'] = true;
-                    }
-
-                    if (method_exists($this, 'block'.$blockType.'Continue'))
-                    {
-                        $Block['incomplete'] = true;
-                    }
-
-                    $CurrentBlock = $Block;
-
-                    continue 2;
-                }
-            }
-
-            # ~
-
-            if (isset($CurrentBlock) and ! isset($CurrentBlock['type']) and ! isset($CurrentBlock['interrupted']))
-            {
-                $CurrentBlock['element']['text'] .= "\n".$text;
-            }
-            else
-            {
-                $Blocks []= $CurrentBlock;
-
-                $CurrentBlock = $this->paragraph($Line);
-
-                $CurrentBlock['identified'] = true;
-            }
-        }
-
-        # ~
-
-        if (isset($CurrentBlock['incomplete']) and method_exists($this, 'block'.$CurrentBlock['type'].'Complete'))
-        {
-            $CurrentBlock = $this->{'block'.$CurrentBlock['type'].'Complete'}($CurrentBlock);
-        }
-
-        # ~
-
-        $Blocks []= $CurrentBlock;
-
-        unset($Blocks[0]);
-
-        # ~
-
-        $markup = '';
-
-        foreach ($Blocks as $Block)
-        {
-            if (isset($Block['hidden']))
-            {
-                continue;
-            }
-
-            $markup .= "\n";
-            $markup .= isset($Block['markup']) ? $Block['markup'] : $this->element($Block['element']);
-        }
-
-        $markup .= "\n";
-
-        # ~
-
-        return $markup;
-    }
-
-    #
-    # Code
-
-    protected function blockCode($Line, $Block = null)
-    {
-        if (isset($Block) and ! isset($Block['type']) and ! isset($Block['interrupted']))
-        {
-            return;
-        }
-
-        if ($Line['indent'] >= 4)
-        {
-            $text = substr($Line['body'], 4);
-
-            $Block = array(
-                'element' => array(
-                    'name' => 'pre',
-                    'handler' => 'element',
-                    'text' => array(
-                        'name' => 'code',
-                        'text' => $text,
-                    ),
-                ),
-            );
-
-            return $Block;
-        }
-    }
-
-    protected function blockCodeContinue($Line, $Block)
-    {
-        if ($Line['indent'] >= 4)
-        {
-            if (isset($Block['interrupted']))
-            {
-                $Block['element']['text']['text'] .= "\n";
-
-                unset($Block['interrupted']);
-            }
-
-            $Block['element']['text']['text'] .= "\n";
-
-            $text = substr($Line['body'], 4);
-
-            $Block['element']['text']['text'] .= $text;
-
-            return $Block;
-        }
-    }
-
-    protected function blockCodeComplete($Block)
-    {
-        $text = $Block['element']['text']['text'];
-
-        $text = htmlspecialchars($text, ENT_NOQUOTES, 'UTF-8');
-
-        $Block['element']['text']['text'] = $text;
-
-        return $Block;
-    }
-
-    #
-    # Comment
-
-    protected function blockComment($Line)
-    {
-        if ($this->markupEscaped)
-        {
-            return;
-        }
-
-        if (isset($Line['text'][3]) and $Line['text'][3] === '-' and $Line['text'][2] === '-' and $Line['text'][1] === '!')
-        {
-            $Block = array(
-                'markup' => $Line['body'],
-            );
-
-            if (preg_match('/-->$/', $Line['text']))
-            {
-                $Block['closed'] = true;
-            }
-
-            return $Block;
-        }
-    }
-
-    protected function blockCommentContinue($Line, array $Block)
-    {
-        if (isset($Block['closed']))
-        {
-            return;
-        }
-
-        $Block['markup'] .= "\n" . $Line['body'];
-
-        if (preg_match('/-->$/', $Line['text']))
-        {
-            $Block['closed'] = true;
-        }
-
-        return $Block;
-    }
-
-    #
-    # Fenced Code
-
-    protected function blockFencedCode($Line)
-    {
-        if (preg_match('/^(['.$Line['text'][0].']{3,})[ ]*([\w-]+)?[ ]*$/', $Line['text'], $matches))
-        {
-            $Element = array(
-                'name' => 'code',
-                'text' => '',
-            );
-
-            if (isset($matches[2]))
-            {
-                $class = 'language-'.$matches[2];
-
-                $Element['attributes'] = array(
-                    'class' => $class,
-                );
-            }
-
-            $Block = array(
-                'char' => $Line['text'][0],
-                'element' => array(
-                    'name' => 'pre',
-                    'handler' => 'element',
-                    'text' => $Element,
-                ),
-            );
-
-            return $Block;
-        }
-    }
-
-    protected function blockFencedCodeContinue($Line, $Block)
-    {
-        if (isset($Block['complete']))
-        {
-            return;
-        }
-
-        if (isset($Block['interrupted']))
-        {
-            $Block['element']['text']['text'] .= "\n";
-
-            unset($Block['interrupted']);
-        }
-
-        if (preg_match('/^'.$Block['char'].'{3,}[ ]*$/', $Line['text']))
-        {
-            $Block['element']['text']['text'] = substr($Block['element']['text']['text'], 1);
-
-            $Block['complete'] = true;
-
-            return $Block;
-        }
-
-        $Block['element']['text']['text'] .= "\n".$Line['body'];;
-
-        return $Block;
-    }
-
-    protected function blockFencedCodeComplete($Block)
-    {
-        $text = $Block['element']['text']['text'];
-
-        $text = htmlspecialchars($text, ENT_NOQUOTES, 'UTF-8');
-
-        $Block['element']['text']['text'] = $text;
-
-        return $Block;
-    }
-
-    #
-    # Header
-
-    protected function blockHeader($Line)
-    {
-        if (isset($Line['text'][1]))
-        {
-            $level = 1;
-
-            while (isset($Line['text'][$level]) and $Line['text'][$level] === '#')
-            {
-                $level ++;
-            }
-
-            if ($level > 6)
-            {
-                return;
-            }
-
-            $text = trim($Line['text'], '# ');
-
-            $Block = array(
-                'element' => array(
-                    'name' => 'h' . min(6, $level),
-                    'text' => $text,
-                    'handler' => 'line',
-                ),
-            );
-
-            return $Block;
-        }
-    }
-
-    #
-    # List
-
-    protected function blockList($Line)
-    {
-        list($name, $pattern) = $Line['text'][0] <= '-' ? array('ul', '[*+-]') : array('ol', '[0-9]+[.]');
-
-        if (preg_match('/^('.$pattern.'[ ]+)(.*)/', $Line['text'], $matches))
-        {
-            $Block = array(
-                'indent' => $Line['indent'],
-                'pattern' => $pattern,
-                'element' => array(
-                    'name' => $name,
-                    'handler' => 'elements',
-                ),
-            );
-
-            $Block['li'] = array(
-                'name' => 'li',
-                'handler' => 'li',
-                'text' => array(
-                    $matches[2],
-                ),
-            );
-
-            $Block['element']['text'] []= & $Block['li'];
-
-            return $Block;
-        }
-    }
-
-    protected function blockListContinue($Line, array $Block)
-    {
-        if ($Block['indent'] === $Line['indent'] and preg_match('/^'.$Block['pattern'].'(?:[ ]+(.*)|$)/', $Line['text'], $matches))
-        {
-            if (isset($Block['interrupted']))
-            {
-                $Block['li']['text'] []= '';
-
-                unset($Block['interrupted']);
-            }
-
-            unset($Block['li']);
-
-            $text = isset($matches[1]) ? $matches[1] : '';
-
-            $Block['li'] = array(
-                'name' => 'li',
-                'handler' => 'li',
-                'text' => array(
-                    $text,
-                ),
-            );
-
-            $Block['element']['text'] []= & $Block['li'];
-
-            return $Block;
-        }
-
-        if ($Line['text'][0] === '[' and $this->blockReference($Line))
-        {
-            return $Block;
-        }
-
-        if ( ! isset($Block['interrupted']))
-        {
-            $text = preg_replace('/^[ ]{0,4}/', '', $Line['body']);
-
-            $Block['li']['text'] []= $text;
-
-            return $Block;
-        }
-
-        if ($Line['indent'] > 0)
-        {
-            $Block['li']['text'] []= '';
-
-            $text = preg_replace('/^[ ]{0,4}/', '', $Line['body']);
-
-            $Block['li']['text'] []= $text;
-
-            unset($Block['interrupted']);
-
-            return $Block;
-        }
-    }
-
-    #
-    # Quote
-
-    protected function blockQuote($Line)
-    {
-        if (preg_match('/^>[ ]?(.*)/', $Line['text'], $matches))
-        {
-            $Block = array(
-                'element' => array(
-                    'name' => 'blockquote',
-                    'handler' => 'lines',
-                    'text' => (array) $matches[1],
-                ),
-            );
-
-            return $Block;
-        }
-    }
-
-    protected function blockQuoteContinue($Line, array $Block)
-    {
-        if ($Line['text'][0] === '>' and preg_match('/^>[ ]?(.*)/', $Line['text'], $matches))
-        {
-            if (isset($Block['interrupted']))
-            {
-                $Block['element']['text'] []= '';
-
-                unset($Block['interrupted']);
-            }
-
-            $Block['element']['text'] []= $matches[1];
-
-            return $Block;
-        }
-
-        if ( ! isset($Block['interrupted']))
-        {
-            $Block['element']['text'] []= $Line['text'];
-
-            return $Block;
-        }
-    }
-
-    #
-    # Rule
-
-    protected function blockRule($Line)
-    {
-        if (preg_match('/^(['.$Line['text'][0].'])([ ]*\1){2,}[ ]*$/', $Line['text']))
-        {
-            $Block = array(
-                'element' => array(
-                    'name' => 'hr'
-                ),
-            );
-
-            return $Block;
-        }
-    }
-
-    #
-    # Setext
-
-    protected function blockSetextHeader($Line, array $Block = null)
-    {
-        if ( ! isset($Block) or isset($Block['type']) or isset($Block['interrupted']))
-        {
-            return;
-        }
-
-        if (chop($Line['text'], $Line['text'][0]) === '')
-        {
-            $Block['element']['name'] = $Line['text'][0] === '=' ? 'h1' : 'h2';
-
-            return $Block;
-        }
-    }
-
-    #
-    # Markup
-
-    protected function blockMarkup($Line)
-    {
-        if ($this->markupEscaped)
-        {
-            return;
-        }
-
-        if (preg_match('/^<(\w*)(?:[ ]*'.$this->regexHtmlAttribute.')*[ ]*(\/)?>/', $Line['text'], $matches))
-        {
-            if (in_array($matches[1], $this->textLevelElements))
-            {
-                return;
-            }
-
-            $Block = array(
-                'name' => $matches[1],
-                'depth' => 0,
-                'markup' => $Line['text'],
-            );
-
-            $length = strlen($matches[0]);
-
-            $remainder = substr($Line['text'], $length);
-
-            if (trim($remainder) === '')
-            {
-                if (isset($matches[2]) or in_array($matches[1], $this->voidElements))
-                {
-                    $Block['closed'] = true;
-
-                    $Block['void'] = true;
-                }
-            }
-            else
-            {
-                if (isset($matches[2]) or in_array($matches[1], $this->voidElements))
-                {
-                    return;
-                }
-
-                if (preg_match('/<\/'.$matches[1].'>[ ]*$/i', $remainder))
-                {
-                    $Block['closed'] = true;
-                }
-            }
-
-            return $Block;
-        }
-    }
-
-    protected function blockMarkupContinue($Line, array $Block)
-    {
-        if (isset($Block['closed']))
-        {
-            return;
-        }
-
-        if (preg_match('/^<'.$Block['name'].'(?:[ ]*'.$this->regexHtmlAttribute.')*[ ]*>/i', $Line['text'])) # open
-        {
-            $Block['depth'] ++;
-        }
-
-        if (preg_match('/(.*?)<\/'.$Block['name'].'>[ ]*$/i', $Line['text'], $matches)) # close
-        {
-            if ($Block['depth'] > 0)
-            {
-                $Block['depth'] --;
-            }
-            else
-            {
-                $Block['closed'] = true;
-            }
-        }
-
-        if (isset($Block['interrupted']))
-        {
-            $Block['markup'] .= "\n";
-
-            unset($Block['interrupted']);
-        }
-
-        $Block['markup'] .= "\n".$Line['body'];
-
-        return $Block;
-    }
-
-    #
-    # Reference
-
-    protected function blockReference($Line)
-    {
-        if (preg_match('/^\[(.+?)\]:[ ]*<?(\S+?)>?(?:[ ]+["\'(](.+)["\')])?[ ]*$/', $Line['text'], $matches))
-        {
-            $id = strtolower($matches[1]);
-
-            $Data = array(
-                'url' => $matches[2],
-                'title' => null,
-            );
-
-            if (isset($matches[3]))
-            {
-                $Data['title'] = $matches[3];
-            }
-
-            $this->DefinitionData['Reference'][$id] = $Data;
-
-            $Block = array(
-                'hidden' => true,
-            );
-
-            return $Block;
-        }
-    }
-
-    #
-    # Table
-
-    protected function blockTable($Line, array $Block = null)
-    {
-        if ( ! isset($Block) or isset($Block['type']) or isset($Block['interrupted']))
-        {
-            return;
-        }
-
-        if (strpos($Block['element']['text'], '|') !== false and chop($Line['text'], ' -:|') === '')
-        {
-            $alignments = array();
-
-            $divider = $Line['text'];
-
-            $divider = trim($divider);
-            $divider = trim($divider, '|');
-
-            $dividerCells = explode('|', $divider);
-
-            foreach ($dividerCells as $dividerCell)
-            {
-                $dividerCell = trim($dividerCell);
-
-                if ($dividerCell === '')
-                {
-                    continue;
-                }
-
-                $alignment = null;
-
-                if ($dividerCell[0] === ':')
-                {
-                    $alignment = 'left';
-                }
-
-                if (substr($dividerCell, - 1) === ':')
-                {
-                    $alignment = $alignment === 'left' ? 'center' : 'right';
-                }
-
-                $alignments []= $alignment;
-            }
-
-            # ~
-
-            $HeaderElements = array();
-
-            $header = $Block['element']['text'];
-
-            $header = trim($header);
-            $header = trim($header, '|');
-
-            $headerCells = explode('|', $header);
-
-            foreach ($headerCells as $index => $headerCell)
-            {
-                $headerCell = trim($headerCell);
-
-                $HeaderElement = array(
-                    'name' => 'th',
-                    'text' => $headerCell,
-                    'handler' => 'line',
-                );
-
-                if (isset($alignments[$index]))
-                {
-                    $alignment = $alignments[$index];
-
-                    $HeaderElement['attributes'] = array(
-                        'style' => 'text-align: '.$alignment.';',
-                    );
-                }
-
-                $HeaderElements []= $HeaderElement;
-            }
-
-            # ~
-
-            $Block = array(
-                'alignments' => $alignments,
-                'identified' => true,
-                'element' => array(
-                    'name' => 'table',
-                    'handler' => 'elements',
-                ),
-            );
-
-            $Block['element']['text'] []= array(
-                'name' => 'thead',
-                'handler' => 'elements',
-            );
-
-            $Block['element']['text'] []= array(
-                'name' => 'tbody',
-                'handler' => 'elements',
-                'text' => array(),
-            );
-
-            $Block['element']['text'][0]['text'] []= array(
-                'name' => 'tr',
-                'handler' => 'elements',
-                'text' => $HeaderElements,
-            );
-
-            return $Block;
-        }
-    }
-
-    protected function blockTableContinue($Line, array $Block)
-    {
-        if (isset($Block['interrupted']))
-        {
-            return;
-        }
-
-        if ($Line['text'][0] === '|' or strpos($Line['text'], '|'))
-        {
-            $Elements = array();
-
-            $row = $Line['text'];
-
-            $row = trim($row);
-            $row = trim($row, '|');
-
-            preg_match_all('/(?:(\\\\[|])|[^|`]|`[^`]+`|`)+/', $row, $matches);
-
-            foreach ($matches[0] as $index => $cell)
-            {
-                $cell = trim($cell);
-
-                $Element = array(
-                    'name' => 'td',
-                    'handler' => 'line',
-                    'text' => $cell,
-                );
-
-                if (isset($Block['alignments'][$index]))
-                {
-                    $Element['attributes'] = array(
-                        'style' => 'text-align: '.$Block['alignments'][$index].';',
-                    );
-                }
-
-                $Elements []= $Element;
-            }
-
-            $Element = array(
-                'name' => 'tr',
-                'handler' => 'elements',
-                'text' => $Elements,
-            );
-
-            $Block['element']['text'][1]['text'] []= $Element;
-
-            return $Block;
-        }
-    }
-
-    #
-    # ~
-    #
-
-    protected function paragraph($Line)
-    {
-        $Block = array(
-            'element' => array(
-                'name' => 'p',
-                'text' => $Line['text'],
-                'handler' => 'line',
-            ),
-        );
-
-        return $Block;
-    }
-
-    #
-    # Inline Elements
-    #
-
-    protected $InlineTypes = array(
-        '"' => array('SpecialCharacter'),
-        '!' => array('Image'),
-        '&' => array('SpecialCharacter'),
-        '*' => array('Emphasis'),
-        ':' => array('Url'),
-        '<' => array('UrlTag', 'EmailTag', 'Markup', 'SpecialCharacter'),
-        '>' => array('SpecialCharacter'),
-        '[' => array('Link'),
-        '_' => array('Emphasis'),
-        '`' => array('Code'),
-        '~' => array('Strikethrough'),
-        '\\' => array('EscapeSequence'),
-    );
-
-    # ~
-
-    protected $inlineMarkerList = '!"*_&[:<>`~\\';
-
-    #
-    # ~
-    #
-
-    public function line($text)
-    {
-        $markup = '';
-
-        $unexaminedText = $text;
-
-        $markerPosition = 0;
-
-        while ($excerpt = strpbrk($unexaminedText, $this->inlineMarkerList))
-        {
-            $marker = $excerpt[0];
-
-            $markerPosition += strpos($unexaminedText, $marker);
-
-            $Excerpt = array('text' => $excerpt, 'context' => $text);
-
-            foreach ($this->InlineTypes[$marker] as $inlineType)
-            {
-                $Inline = $this->{'inline'.$inlineType}($Excerpt);
-
-                if ( ! isset($Inline))
-                {
-                    continue;
-                }
-
-                if (isset($Inline['position']) and $Inline['position'] > $markerPosition) # position is ahead of marker
-                {
-                    continue;
-                }
-
-                if ( ! isset($Inline['position']))
-                {
-                    $Inline['position'] = $markerPosition;
-                }
-
-                $unmarkedText = substr($text, 0, $Inline['position']);
-
-                $markup .= $this->unmarkedText($unmarkedText);
-
-                $markup .= isset($Inline['markup']) ? $Inline['markup'] : $this->element($Inline['element']);
-
-                $text = substr($text, $Inline['position'] + $Inline['extent']);
-
-                $unexaminedText = $text;
-
-                $markerPosition = 0;
-
-                continue 2;
-            }
-
-            $unexaminedText = substr($excerpt, 1);
-
-            $markerPosition ++;
-        }
-
-        $markup .= $this->unmarkedText($text);
-
-        return $markup;
-    }
-
-    #
-    # ~
-    #
-
-    protected function inlineCode($Excerpt)
-    {
-        $marker = $Excerpt['text'][0];
-
-        if (preg_match('/^('.$marker.'+)[ ]*(.+?)[ ]*(?<!'.$marker.')\1(?!'.$marker.')/s', $Excerpt['text'], $matches))
-        {
-            $text = $matches[2];
-            $text = htmlspecialchars($text, ENT_NOQUOTES, 'UTF-8');
-            $text = preg_replace("/[ ]*\n/", ' ', $text);
-
-            return array(
-                'extent' => strlen($matches[0]),
-                'element' => array(
-                    'name' => 'code',
-                    'text' => $text,
-                ),
-            );
-        }
-    }
-
-    protected function inlineEmailTag($Excerpt)
-    {
-        if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<((mailto:)?\S+?@\S+?)>/i', $Excerpt['text'], $matches))
-        {
-            $url = $matches[1];
-
-            if ( ! isset($matches[2]))
-            {
-                $url = 'mailto:' . $url;
-            }
-
-            return array(
-                'extent' => strlen($matches[0]),
-                'element' => array(
-                    'name' => 'a',
-                    'text' => $matches[1],
-                    'attributes' => array(
-                        'href' => $url,
-                    ),
-                ),
-            );
-        }
-    }
-
-    protected function inlineEmphasis($Excerpt)
-    {
-        if ( ! isset($Excerpt['text'][1]))
-        {
-            return;
-        }
-
-        $marker = $Excerpt['text'][0];
-
-        if ($Excerpt['text'][1] === $marker and preg_match($this->StrongRegex[$marker], $Excerpt['text'], $matches))
-        {
-            $emphasis = 'strong';
-        }
-        elseif (preg_match($this->EmRegex[$marker], $Excerpt['text'], $matches))
-        {
-            $emphasis = 'em';
-        }
-        else
-        {
-            return;
-        }
-
-        return array(
-            'extent' => strlen($matches[0]),
-            'element' => array(
-                'name' => $emphasis,
-                'handler' => 'line',
-                'text' => $matches[1],
-            ),
-        );
-    }
-
-    protected function inlineEscapeSequence($Excerpt)
-    {
-        if (isset($Excerpt['text'][1]) and in_array($Excerpt['text'][1], $this->specialCharacters))
-        {
-            return array(
-                'markup' => $Excerpt['text'][1],
-                'extent' => 2,
-            );
-        }
-    }
-
-    protected function inlineImage($Excerpt)
-    {
-        if ( ! isset($Excerpt['text'][1]) or $Excerpt['text'][1] !== '[')
-        {
-            return;
-        }
-
-        $Excerpt['text']= substr($Excerpt['text'], 1);
-
-        $Link = $this->inlineLink($Excerpt);
-
-        if ($Link === null)
-        {
-            return;
-        }
-
-        $Inline = array(
-            'extent' => $Link['extent'] + 1,
-            'element' => array(
-                'name' => 'img',
-                'attributes' => array(
-                    'src' => $Link['element']['attributes']['href'],
-                    'alt' => $Link['element']['text'],
-                ),
-            ),
-        );
-
-        $Inline['element']['attributes'] += $Link['element']['attributes'];
-
-        unset($Inline['element']['attributes']['href']);
-
-        return $Inline;
-    }
-
-    protected function inlineLink($Excerpt)
-    {
-        $Element = array(
-            'name' => 'a',
-            'handler' => 'line',
-            'text' => null,
-            'attributes' => array(
-                'href' => null,
-                'title' => null,
-            ),
-        );
-
-        $extent = 0;
-
-        $remainder = $Excerpt['text'];
-
-        if (preg_match('/\[((?:[^][]|(?R))*)\]/', $remainder, $matches))
-        {
-            $Element['text'] = $matches[1];
-
-            $extent += strlen($matches[0]);
-
-            $remainder = substr($remainder, $extent);
-        }
-        else
-        {
-            return;
-        }
-
-        if (preg_match('/^[(]((?:[^ ()]|[(][^ )]+[)])+)(?:[ ]+("[^"]*"|\'[^\']*\'))?[)]/', $remainder, $matches))
-        {
-            $Element['attributes']['href'] = $matches[1];
-
-            if (isset($matches[2]))
-            {
-                $Element['attributes']['title'] = substr($matches[2], 1, - 1);
-            }
-
-            $extent += strlen($matches[0]);
-        }
-        else
-        {
-            if (preg_match('/^\s*\[(.*?)\]/', $remainder, $matches))
-            {
-                $definition = $matches[1] ? $matches[1] : $Element['text'];
-                $definition = strtolower($definition);
-
-                $extent += strlen($matches[0]);
-            }
-            else
-            {
-                $definition = strtolower($Element['text']);
-            }
-
-            if ( ! isset($this->DefinitionData['Reference'][$definition]))
-            {
-                return;
-            }
-
-            $Definition = $this->DefinitionData['Reference'][$definition];
-
-            $Element['attributes']['href'] = $Definition['url'];
-            $Element['attributes']['title'] = $Definition['title'];
-        }
-
-        $Element['attributes']['href'] = str_replace(array('&', '<'), array('&amp;', '&lt;'), $Element['attributes']['href']);
-
-        return array(
-            'extent' => $extent,
-            'element' => $Element,
-        );
-    }
-
-    protected function inlineMarkup($Excerpt)
-    {
-        if ($this->markupEscaped or strpos($Excerpt['text'], '>') === false)
-        {
-            return;
-        }
-
-        if ($Excerpt['text'][1] === '/' and preg_match('/^<\/\w*[ ]*>/s', $Excerpt['text'], $matches))
-        {
-            return array(
-                'markup' => $matches[0],
-                'extent' => strlen($matches[0]),
-            );
-        }
-
-        if ($Excerpt['text'][1] === '!' and preg_match('/^<!---?[^>-](?:-?[^-])*-->/s', $Excerpt['text'], $matches))
-        {
-            return array(
-                'markup' => $matches[0],
-                'extent' => strlen($matches[0]),
-            );
-        }
-
-        if ($Excerpt['text'][1] !== ' ' and preg_match('/^<\w*(?:[ ]*'.$this->regexHtmlAttribute.')*[ ]*\/?>/s', $Excerpt['text'], $matches))
-        {
-            return array(
-                'markup' => $matches[0],
-                'extent' => strlen($matches[0]),
-            );
-        }
-    }
-
-    protected function inlineSpecialCharacter($Excerpt)
-    {
-        if ($Excerpt['text'][0] === '&' and ! preg_match('/^&#?\w+;/', $Excerpt['text']))
-        {
-            return array(
-                'markup' => '&amp;',
-                'extent' => 1,
-            );
-        }
-
-        $SpecialCharacter = array('>' => 'gt', '<' => 'lt', '"' => 'quot');
-
-        if (isset($SpecialCharacter[$Excerpt['text'][0]]))
-        {
-            return array(
-                'markup' => '&'.$SpecialCharacter[$Excerpt['text'][0]].';',
-                'extent' => 1,
-            );
-        }
-    }
-
-    protected function inlineStrikethrough($Excerpt)
-    {
-        if ( ! isset($Excerpt['text'][1]))
-        {
-            return;
-        }
-
-        if ($Excerpt['text'][1] === '~' and preg_match('/^~~(?=\S)(.+?)(?<=\S)~~/', $Excerpt['text'], $matches))
-        {
-            return array(
-                'extent' => strlen($matches[0]),
-                'element' => array(
-                    'name' => 'del',
-                    'text' => $matches[1],
-                    'handler' => 'line',
-                ),
-            );
-        }
-    }
-
-    protected function inlineUrl($Excerpt)
-    {
-        if ($this->urlsLinked !== true or ! isset($Excerpt['text'][2]) or $Excerpt['text'][2] !== '/')
-        {
-            return;
-        }
-
-        if (preg_match('/\bhttps?:[\/]{2}[^\s<]+\b\/*/ui', $Excerpt['context'], $matches, PREG_OFFSET_CAPTURE))
-        {
-            $Inline = array(
-                'extent' => strlen($matches[0][0]),
-                'position' => $matches[0][1],
-                'element' => array(
-                    'name' => 'a',
-                    'text' => $matches[0][0],
-                    'attributes' => array(
-                        'href' => $matches[0][0],
-                    ),
-                ),
-            );
-
-            return $Inline;
-        }
-    }
-
-    protected function inlineUrlTag($Excerpt)
-    {
-        if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<(\w+:\/{2}[^ >]+)>/i', $Excerpt['text'], $matches))
-        {
-            $url = str_replace(array('&', '<'), array('&amp;', '&lt;'), $matches[1]);
-
-            return array(
-                'extent' => strlen($matches[0]),
-                'element' => array(
-                    'name' => 'a',
-                    'text' => $url,
-                    'attributes' => array(
-                        'href' => $url,
-                    ),
-                ),
-            );
-        }
-    }
-
-    # ~
-
-    protected function unmarkedText($text)
-    {
-        if ($this->breaksEnabled)
-        {
-            $text = preg_replace('/[ ]*\n/', "<br />\n", $text);
-        }
-        else
-        {
-            $text = preg_replace('/(?:[ ][ ]+|[ ]*\\\\)\n/', "<br />\n", $text);
-            $text = str_replace(" \n", "\n", $text);
-        }
-
-        return $text;
-    }
-
-    #
-    # Handlers
-    #
-
-    protected function element(array $Element)
-    {
-        $markup = '<'.$Element['name'];
-
-        if (isset($Element['attributes']))
-        {
-            foreach ($Element['attributes'] as $name => $value)
-            {
-                if ($value === null)
-                {
-                    continue;
-                }
-
-                $markup .= ' '.$name.'="'.$value.'"';
-            }
-        }
-
-        if (isset($Element['text']))
-        {
-            $markup .= '>';
-
-            if (isset($Element['handler']))
-            {
-                $markup .= $this->{$Element['handler']}($Element['text']);
-            }
-            else
-            {
-                $markup .= $Element['text'];
-            }
-
-            $markup .= '</'.$Element['name'].'>';
-        }
-        else
-        {
-            $markup .= ' />';
-        }
-
-        return $markup;
-    }
-
-    protected function elements(array $Elements)
-    {
-        $markup = '';
-
-        foreach ($Elements as $Element)
-        {
-            $markup .= "\n" . $this->element($Element);
-        }
-
-        $markup .= "\n";
-
-        return $markup;
-    }
-
-    # ~
-
-    protected function li($lines)
-    {
-        $markup = $this->lines($lines);
-
-        $trimmedMarkup = trim($markup);
-
-        if ( ! in_array('', $lines) and substr($trimmedMarkup, 0, 3) === '<p>')
-        {
-            $markup = $trimmedMarkup;
-            $markup = substr($markup, 3);
-
-            $position = strpos($markup, "</p>");
-
-            $markup = substr_replace($markup, '', $position, 4);
-        }
-
-        return $markup;
-    }
-
-    #
-    # Deprecated Methods
-    #
-
-    function parse($text)
-    {
-        $markup = $this->text($text);
-
-        return $markup;
-    }
-
-    #
-    # Static Methods
-    #
-
-    static function instance($name = 'default')
-    {
-        if (isset(self::$instances[$name]))
-        {
-            return self::$instances[$name];
-        }
-
-        $instance = new self();
-
-        self::$instances[$name] = $instance;
-
-        return $instance;
-    }
-
-    private static $instances = array();
-
-    #
-    # Fields
-    #
-
-    protected $DefinitionData;
-
-    #
-    # Read-Only
-
-    protected $specialCharacters = array(
-        '\\', '`', '*', '_', '{', '}', '[', ']', '(', ')', '>', '#', '+', '-', '.', '!', '|',
-    );
-
-    protected $StrongRegex = array(
-        '*' => '/^[*]{2}((?:\\\\\*|[^*]|[*][^*]*[*])+?)[*]{2}(?![*])/s',
-        '_' => '/^__((?:\\\\_|[^_]|_[^_]*_)+?)__(?!_)/us',
-    );
-
-    protected $EmRegex = array(
-        '*' => '/^[*]((?:\\\\\*|[^*]|[*][*][^*]+?[*][*])+?)[*](?![*])/s',
-        '_' => '/^_((?:\\\\_|[^_]|__[^_]*__)+?)_(?!_)\b/us',
-    );
-
-    protected $regexHtmlAttribute = '[a-zA-Z_:][\w:.-]*(?:\s*=\s*(?:[^"\'=<>`\s]+|"[^"]*"|\'[^\']*\'))?';
-
-    protected $voidElements = array(
-        'area', 'base', 'br', 'col', 'command', 'embed', 'hr', 'img', 'input', 'link', 'meta', 'param', 'source',
-    );
-
-    protected $textLevelElements = array(
-        'a', 'br', 'bdo', 'abbr', 'blink', 'nextid', 'acronym', 'basefont',
-        'b', 'em', 'big', 'cite', 'small', 'spacer', 'listing',
-        'i', 'rp', 'del', 'code',          'strike', 'marquee',
-        'q', 'rt', 'ins', 'font',          'strong',
-        's', 'tt', 'sub', 'mark',
-        'u', 'xm', 'sup', 'nobr',
-                   'var', 'ruby',
-                   'wbr', 'span',
-                          'time',
-    );
-}
diff --git a/library/parsedown/README.md b/library/parsedown/README.md
deleted file mode 100644
index 8d485e7d27..0000000000
--- a/library/parsedown/README.md
+++ /dev/null
@@ -1,48 +0,0 @@
-## Parsedown
-
-Better Markdown Parser in PHP
-
-[[ demo ]](http://parsedown.org/demo)
-
-### Features
-
-* [Fast](http://parsedown.org/speed)
-* [Consistent](http://parsedown.org/consistency)
-* [GitHub flavored](https://help.github.com/articles/github-flavored-markdown)
-* [Tested](http://parsedown.org/tests/) in PHP 5.2, 5.3, 5.4, 5.5, 5.6 and [hhvm](http://www.hhvm.com/)
-* [Extensible](https://github.com/erusev/parsedown/wiki/Writing-Extensions)
-* [Markdown Extra extension](https://github.com/erusev/parsedown-extra)
-
-### Installation
-
-Include `Parsedown.php` or install [the composer package](https://packagist.org/packages/erusev/parsedown).
-
-### Example
-
-``` php
-$Parsedown = new Parsedown();
-
-echo $Parsedown->text('Hello _Parsedown_!'); # prints: <p>Hello <em>Parsedown</em>!</p>
-```
-
-More examples in [the wiki](https://github.com/erusev/parsedown/wiki/Usage) and in [this video tutorial](http://youtu.be/wYZBY8DEikI).
-
-### Questions
-
-**How does Parsedown work?**
-
-It tries to read Markdown like a human. First, it looks at the lines. It’s interested in how the lines start. This helps it recognise blocks. It knows, for example, that if a line start with a `-` then it perhaps belong to a list. Once it recognises the blocks, it continues to the content. As it reads, it watches out for special characters. This helps it recognise inline elements (or inlines).
-
-We call this approach "line based". We believe that Parsedown is the first Markdown parser to use it. Since the release of Parsedown, other developers have used the same approach to develop other Markdown parsers in PHP and in other languages.
-
-**Is it compliant with CommonMark?**
-
-It passes most of the CommonMark tests. Most of the tests that don't pass deal with cases that are quite uncommon. Still, as CommonMark matures, compliance should improve.
-
-**Who uses it?**
-
-[phpDocumentor](http://www.phpdoc.org/), [October CMS](http://octobercms.com/), [Bolt CMS](http://bolt.cm/), [Kirby CMS](http://getkirby.com/), [Grav CMS](http://getgrav.org/), [Statamic CMS](http://www.statamic.com/),  [RaspberryPi.org](http://www.raspberrypi.org/) and [more](https://www.versioneye.com/php/erusev:parsedown/references).
-
-**How can I help?**
-
-Use it, star it, share it and if you feel generous, [donate some money](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=528P3NZQMP8N2).
diff --git a/library/parsedown/composer.json b/library/parsedown/composer.json
deleted file mode 100644
index 1439b824dd..0000000000
--- a/library/parsedown/composer.json
+++ /dev/null
@@ -1,18 +0,0 @@
-{
-    "name": "erusev/parsedown",
-    "description": "Parser for Markdown.",
-    "keywords": ["markdown", "parser"],
-    "homepage": "http://parsedown.org",
-    "type": "library",
-    "license": "MIT",
-    "authors": [
-        {
-            "name": "Emanuil Rusev",
-            "email": "hello@erusev.com",
-            "homepage": "http://erusev.com"
-        }
-    ],
-    "autoload": {
-        "psr-0": {"Parsedown": ""}
-    }
-}
\ No newline at end of file
diff --git a/library/parsedown/phpunit.xml.dist b/library/parsedown/phpunit.xml.dist
deleted file mode 100644
index b2d5e9d4fe..0000000000
--- a/library/parsedown/phpunit.xml.dist
+++ /dev/null
@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<phpunit bootstrap="test/bootstrap.php" colors="true">
-	<testsuites>
-		<testsuite>
-			<file>test/ParsedownTest.php</file>
-		</testsuite>
-	</testsuites>
-</phpunit>
\ No newline at end of file
diff --git a/library/php-markdown/markdown.php b/library/php-markdown/markdown.php
deleted file mode 100644
index 8958e8c842..0000000000
--- a/library/php-markdown/markdown.php
+++ /dev/null
@@ -1,17 +0,0 @@
-<?php
-//# Install PSR-0-compatible class autoloader
-//spl_autoload_register(function($class){
-//	require preg_replace('{\\\\|_(?!.*\\\\)}', DIRECTORY_SEPARATOR, ltrim($class, '\\')).'.php';
-//});
-
-require_once("library/php-markdown/Michelf/MarkdownExtra.inc.php");
-# Get Markdown class
-use \Michelf\MarkdownExtra;
-
-function Markdown($text) {
-	# Read file and pass content through the Markdown parser
-	$html = MarkdownExtra::defaultTransform($text);
-
-	return $html;
-}
-?>

From 25eb323d69279b292e8d59be1422c70260de58bc Mon Sep 17 00:00:00 2001
From: Michael Vogel <icarus@dabo.de>
Date: Mon, 23 Feb 2015 23:56:44 +0100
Subject: [PATCH 06/13] Removed the last traces of the old Markdown library

---
 mod/help.php | 54 +++-------------------------------------------------
 1 file changed, 3 insertions(+), 51 deletions(-)

diff --git a/mod/help.php b/mod/help.php
index 44edbf9318..6d8fbb1842 100644
--- a/mod/help.php
+++ b/mod/help.php
@@ -1,53 +1,6 @@
 <?php
-define( 'MARKDOWN_PARSER_CLASS',  'ExtendedMarkdown' );
 require_once('library/markdown.php');
 
-class ExtendedMarkdown extends MarkdownExtra_Parser {
-
-	function ExtendedMarkdown() {
-		$this->block_gamut += array(
-			"doBlockWarning" => 45,
-		);
-		parent::MarkdownExtra_Parser();
-	}
-
-	function doBlockWarning($text) {
-		$text = preg_replace_callback('/
-			  (								# Wrap whole match in $1
-				(?>
-				  ^[ ]*![ ]?				# "!" at the start of a line
-					.+\n					# rest of the first line
-				  (.+\n)*					# subsequent consecutive lines
-				  \n*						# blanks
-				)+
-			  )
-			/xm', array(&$this, '_doBlockWarning_callback'), $text);
-
-		return $text;
-	}
-
-	function _doBlockWarning_callback($matches) {
-		$bq = $matches[1];
-		# trim one level of quoting - trim whitespace-only lines
-		$bq = preg_replace('/^[ ]*![ ]?|^[ ]+$/m', '', $bq);
-		$bq = $this->runBlockGamut($bq);  # recurse
-
-		$bq = preg_replace('/^/m', "  ", $bq);
-		# These leading spaces cause problem with <pre> content, 
-		# so we need to fix that:
-//		$bq = preg_replace_callback('{(\s*<pre>.+?</pre>)}sx', array(&$this, '__doBlockWarning_callback2'), $bq);
-
-		return "\n" . $this->hashBlock("<div class='md_warning'>\n$bq\n</div>") . "\n\n";
-	}
-
-	function _doBlockWarning_callback2($matches) {
-		$pre = $matches[1];
-		$pre = preg_replace('/^  /m', '', $pre);
-		return $pre;
-	}
-
-}
-
 if (!function_exists('load_doc_file')) {
 
 	function load_doc_file($s) {
@@ -66,8 +19,7 @@ if (!function_exists('load_doc_file')) {
 }
 
 function help_content(&$a) {
-	
-	
+
 	nav_set_selected('help');
 
 	global $lang;
@@ -93,9 +45,9 @@ function help_content(&$a) {
 					'$message' => t('Page not found.')
 				));
 	}
-	
+
 	$html = Markdown($text);
 	$html = "<style>.md_warning { padding: 1em; border: #ff0000 solid 2px; background-color: #f9a3a3; color: #ffffff;</style>".$html;
 	return $html;
-		
+
 }

From 17bd46793ee5bfbf1b4c547c6386ce66e6f99a4d Mon Sep 17 00:00:00 2001
From: Michael Vogel <icarus@dabo.de>
Date: Tue, 24 Feb 2015 00:05:50 +0100
Subject: [PATCH 07/13] Some fixes for the Markdown converter especially for
 Libertree.

---
 include/bb2diaspora.php | 44 +++++++----------------------------------
 1 file changed, 7 insertions(+), 37 deletions(-)

diff --git a/include/bb2diaspora.php b/include/bb2diaspora.php
index 272b69dff9..a694c8ec85 100644
--- a/include/bb2diaspora.php
+++ b/include/bb2diaspora.php
@@ -6,7 +6,6 @@ require_once("library/markdown.php");
 require_once("include/html2bbcode.php");
 require_once("include/bbcode.php");
 require_once("library/html-to-markdown/HTML_To_Markdown.php");
-//require_once("include/markdownify/markdownify.php");
 
 
 // we don't want to support a bbcode specific markdown interpreter
@@ -21,9 +20,6 @@ function diaspora2bb($s) {
 	// Simply remove cr.
 	$s = str_replace("\r","",$s);
 
-	// <br/> is invalid. Replace it with the valid expression
-	//$s = str_replace(array("<br/>", "</p>", "<p>", '<p dir="ltr">'),array("<br />", "<br />", "<br />", "<br />"),$s);
-
 	// Escaping the hash tags
 	$s = preg_replace('/\#([^\s\#])/','&#35;$1',$s);
 
@@ -89,45 +85,19 @@ function bb2diaspora($Text,$preserve_nl = false, $fordiaspora = true) {
 			$Text = $Text."<br />".$tagline;
 		}
 
-	} else {
+	} else
 		$Text = bbcode($Text, $preserve_nl, false, 4);
 
-		// Libertree doesn't convert a harizontal rule if there isn't a linefeed
-		//$Text = str_replace(array("<hr />", "<hr>"), array("<br /><hr />", "<br><hr>"), $Text);
-	}
+	// If a link is followed by a quote then there should be a newline before it
+	// Maybe we should make this newline at every time before a quote.
+	$Text = str_replace(array("</a><blockquote>"), array("</a><br><blockquote>"), $Text);
 
 	// Now convert HTML to Markdown
 	$Text = new HTML_To_Markdown($Text);
 
-/*
-	//$md = new Markdownify(false, false, false);
-	//$Text = $md->parseString($Text);
-
-	// The Markdownify converter converts underscores '_' in URLs to '\_', which
-	// messes up the URL. Manually fix these
-	$count = 1;
-	$pos = bb_find_open_close($Text, '[', ']', $count);
-	while($pos !== false) {
-		$start = substr($Text, 0, $pos['start']);
-		$subject = substr($Text, $pos['start'], $pos['end'] - $pos['start'] + 1);
-		$end = substr($Text, $pos['end'] + 1);
-
-		$subject = str_replace('\_', '_', $subject);
-		$Text = $start . $subject . $end;
-
-		$count++;
-		$pos = bb_find_open_close($Text, '[', ']', $count);
-	}
-
-	// If the text going into bbcode() has a plain URL in it, i.e.
-	// with no [url] tags around it, it will come out of parseString()
-	// looking like: <http://url.com>, which gets removed by strip_tags().
-	// So take off the angle brackets of any such URL
-	$Text = preg_replace("/<http(.*?)>/is", "http$1", $Text);
-
-	// Remove all unconverted tags
-	$Text = strip_tags($Text);
-*/
+	// Libertree has a problem with escaped hashtags - Diaspora doesn't seem to.
+	if (!$fordiaspora)
+		$Text = str_replace(array('\#'), array('#'), $Text);
 
 	// Remove any leading or trailing whitespace, as this will mess up
 	// the Diaspora signature verification and cause the item to disappear

From e0d35949333c4be522ea4df5b302d7e42d03d568 Mon Sep 17 00:00:00 2001
From: Michael Vogel <icarus@dabo.de>
Date: Tue, 24 Feb 2015 00:08:17 +0100
Subject: [PATCH 08/13] Added the markdown parser to the time measurement
 system

---
 library/markdown.php | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/library/markdown.php b/library/markdown.php
index 8958e8c842..4d36c1d14f 100644
--- a/library/markdown.php
+++ b/library/markdown.php
@@ -9,9 +9,16 @@ require_once("library/php-markdown/Michelf/MarkdownExtra.inc.php");
 use \Michelf\MarkdownExtra;
 
 function Markdown($text) {
+
+	$a = get_app();
+
+	$stamp1 = microtime(true);
+
 	# Read file and pass content through the Markdown parser
 	$html = MarkdownExtra::defaultTransform($text);
 
+	$a->save_timestamp($stamp1, "rendering");
+
 	return $html;
 }
 ?>

From fcaf71691f7721265029df04f8052e080a9ae168 Mon Sep 17 00:00:00 2001
From: Michael Vogel <icarus@dabo.de>
Date: Tue, 24 Feb 2015 00:12:30 +0100
Subject: [PATCH 09/13] Diaspora: Bugfix for the hashtag detection of incoming
 posts

---
 include/diaspora.php | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/diaspora.php b/include/diaspora.php
index a0d1fcd751..d464b5d679 100755
--- a/include/diaspora.php
+++ b/include/diaspora.php
@@ -834,6 +834,7 @@ function diaspora_post($importer,$xml,$msg) {
 	$str_tags = '';
 
 	$tags = get_tags($body);
+	rsort($tags);
 
 	if(count($tags)) {
 		foreach($tags as $tag) {
@@ -843,9 +844,9 @@ function diaspora_post($importer,$xml,$msg) {
 
 				// don't link tags that are already embedded in links
 
-				if(preg_match('/\[(.*?)' . preg_quote($tag,'/') . '(.*?)\]/',$body))
+				if(preg_match('/\[(\S*?)' . preg_quote($tag,'/') . '(\S*?)\]/',$body))
 					continue;
-				if(preg_match('/\[(.*?)\]\((.*?)' . preg_quote($tag,'/') . '(.*?)\)/',$body))
+				if(preg_match('/\[(\S*?)\]\((\S*?)' . preg_quote($tag,'/') . '(\S*?)\)/',$body))
 					continue;
 
 				$basetag = str_replace('_',' ',substr($tag,1));

From d4b0a9ea2a16472bc1869d0f00a4f9ac12689583 Mon Sep 17 00:00:00 2001
From: Michael Vogel <icarus@dabo.de>
Date: Tue, 24 Feb 2015 10:21:09 +0100
Subject: [PATCH 10/13] Solving parsing problems with the markdown library and
 html elements.

---
 include/bb2diaspora.php | 23 ++++++++++++++++++++++-
 library/markdown.php    |  2 +-
 2 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/include/bb2diaspora.php b/include/bb2diaspora.php
index a694c8ec85..e818acb83e 100644
--- a/include/bb2diaspora.php
+++ b/include/bb2diaspora.php
@@ -18,7 +18,22 @@ function diaspora2bb($s) {
 	$s = html_entity_decode($s,ENT_COMPAT,'UTF-8');
 
 	// Simply remove cr.
-	$s = str_replace("\r","",$s);
+	//$s = str_replace("\r","",$s);
+/*
+	// The parser has problems with unbalanced HTML elements
+	$doc = new DOMDocument();
+	$doc->preserveWhiteSpace = false;
+	$s = mb_convert_encoding($s, 'HTML-ENTITIES', "UTF-8");
+	$doctype = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">';
+	$encoding = '<?xml encoding="UTF-8">';
+	@$doc->loadHTML($encoding.$doctype."<html><body>".$s."</body></html>");
+	$doc->encoding = 'UTF-8';
+	$s = $doc->saveHTML();
+	$s = str_replace(array("<html><body>", "</body></html>", $doctype, $encoding), array("", "", "", ""), $s);
+*/
+
+	// The parser has problems with unbalanced html elements
+	$s = str_replace(array("<br/>", "</p>", "<p>", '<p dir="ltr">'),array("<br />", "<br />", "<br />", "<br />"),$s);
 
 	// Escaping the hash tags
 	$s = preg_replace('/\#([^\s\#])/','&#35;$1',$s);
@@ -53,6 +68,8 @@ function diaspora2bb($s) {
 
 function bb2diaspora($Text,$preserve_nl = false, $fordiaspora = true) {
 
+	$a = get_app();
+
 	$OriginalText = $Text;
 
 	// Since Diaspora is creating a summary for links, this function removes them before posting
@@ -92,9 +109,13 @@ function bb2diaspora($Text,$preserve_nl = false, $fordiaspora = true) {
 	// Maybe we should make this newline at every time before a quote.
 	$Text = str_replace(array("</a><blockquote>"), array("</a><br><blockquote>"), $Text);
 
+	$stamp1 = microtime(true);
+
 	// Now convert HTML to Markdown
 	$Text = new HTML_To_Markdown($Text);
 
+	$a->save_timestamp($stamp1, "parser");
+
 	// Libertree has a problem with escaped hashtags - Diaspora doesn't seem to.
 	if (!$fordiaspora)
 		$Text = str_replace(array('\#'), array('#'), $Text);
diff --git a/library/markdown.php b/library/markdown.php
index 4d36c1d14f..a8152c2ab6 100644
--- a/library/markdown.php
+++ b/library/markdown.php
@@ -17,7 +17,7 @@ function Markdown($text) {
 	# Read file and pass content through the Markdown parser
 	$html = MarkdownExtra::defaultTransform($text);
 
-	$a->save_timestamp($stamp1, "rendering");
+	$a->save_timestamp($stamp1, "parser");
 
 	return $html;
 }

From 5c94a2420adb827c66b7b49cc5981c930f33018d Mon Sep 17 00:00:00 2001
From: Michael Vogel <icarus@dabo.de>
Date: Tue, 24 Feb 2015 11:08:23 +0100
Subject: [PATCH 11/13] Removed old library

---
 include/markdownify/LICENSE_LGPL.txt        |  504 --------
 include/markdownify/TODO                    |   29 -
 include/markdownify/example.php             |   51 -
 include/markdownify/markdownify.php         | 1197 -------------------
 include/markdownify/markdownify_cli.php     |   33 -
 include/markdownify/markdownify_extra.php   |  489 --------
 include/markdownify/parsehtml/parsehtml.php |  618 ----------
 7 files changed, 2921 deletions(-)
 delete mode 100644 include/markdownify/LICENSE_LGPL.txt
 delete mode 100644 include/markdownify/TODO
 delete mode 100644 include/markdownify/example.php
 delete mode 100644 include/markdownify/markdownify.php
 delete mode 100755 include/markdownify/markdownify_cli.php
 delete mode 100644 include/markdownify/markdownify_extra.php
 delete mode 100644 include/markdownify/parsehtml/parsehtml.php

diff --git a/include/markdownify/LICENSE_LGPL.txt b/include/markdownify/LICENSE_LGPL.txt
deleted file mode 100644
index 5ab7695ab8..0000000000
--- a/include/markdownify/LICENSE_LGPL.txt
+++ /dev/null
@@ -1,504 +0,0 @@
-		  GNU LESSER GENERAL PUBLIC LICENSE
-		       Version 2.1, February 1999
-
- Copyright (C) 1991, 1999 Free Software Foundation, Inc.
- 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-[This is the first released version of the Lesser GPL.  It also counts
- as the successor of the GNU Library Public License, version 2, hence
- the version number 2.1.]
-
-			    Preamble
-
-  The licenses for most software are designed to take away your
-freedom to share and change it.  By contrast, the GNU General Public
-Licenses are intended to guarantee your freedom to share and change
-free software--to make sure the software is free for all its users.
-
-  This license, the Lesser General Public License, applies to some
-specially designated software packages--typically libraries--of the
-Free Software Foundation and other authors who decide to use it.  You
-can use it too, but we suggest you first think carefully about whether
-this license or the ordinary General Public License is the better
-strategy to use in any particular case, based on the explanations below.
-
-  When we speak of free software, we are referring to freedom of use,
-not price.  Our General Public Licenses are designed to make sure that
-you have the freedom to distribute copies of free software (and charge
-for this service if you wish); that you receive source code or can get
-it if you want it; that you can change the software and use pieces of
-it in new free programs; and that you are informed that you can do
-these things.
-
-  To protect your rights, we need to make restrictions that forbid
-distributors to deny you these rights or to ask you to surrender these
-rights.  These restrictions translate to certain responsibilities for
-you if you distribute copies of the library or if you modify it.
-
-  For example, if you distribute copies of the library, whether gratis
-or for a fee, you must give the recipients all the rights that we gave
-you.  You must make sure that they, too, receive or can get the source
-code.  If you link other code with the library, you must provide
-complete object files to the recipients, so that they can relink them
-with the library after making changes to the library and recompiling
-it.  And you must show them these terms so they know their rights.
-
-  We protect your rights with a two-step method: (1) we copyright the
-library, and (2) we offer you this license, which gives you legal
-permission to copy, distribute and/or modify the library.
-
-  To protect each distributor, we want to make it very clear that
-there is no warranty for the free library.  Also, if the library is
-modified by someone else and passed on, the recipients should know
-that what they have is not the original version, so that the original
-author's reputation will not be affected by problems that might be
-introduced by others.
-
-  Finally, software patents pose a constant threat to the existence of
-any free program.  We wish to make sure that a company cannot
-effectively restrict the users of a free program by obtaining a
-restrictive license from a patent holder.  Therefore, we insist that
-any patent license obtained for a version of the library must be
-consistent with the full freedom of use specified in this license.
-
-  Most GNU software, including some libraries, is covered by the
-ordinary GNU General Public License.  This license, the GNU Lesser
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diff --git a/include/markdownify/TODO b/include/markdownify/TODO
deleted file mode 100644
index 06ec8508ba..0000000000
--- a/include/markdownify/TODO
+++ /dev/null
@@ -1,29 +0,0 @@
-Markdownify
-===========
-* handle non-markdownifiable lists (i.e. `<ul><li id="foobar">asdf</li></ul>`)
-* organize methods better (i.e. flushlinebreaks & setlinebreaks close to each other)
-* take a look at function names etc.
-* is the new (in rev. 93) lastclosedtag property needed?
-* word wrapping (some work is done but it's still very buggy)
-
-
-Markdownify Extra
-=================
-
-* handle table alignment with KEEP_HTML=false
-* handle tables without headings when KEEP_HTML=false is set
-* handle Markdown inside non-markdownable tags
-
-
-Implementation Thoughts
-=======================
-* non-markdownifiable lists and markdown inside non-markdownable tags as well as the current
-  table implementation could be rewritten by using a rollback mechanism.
-  
-  example:
-  
-      <ul><li>asdf</li><li id="foobar">asdf</li></ul>
-  
-  we come to `<ul>`, know that this might fail and create a snapshot of our current parser
-  we keep on parsing and when we reach `<li id="foobar">` we gotta rollback and keep this
-  list in HTML format.
diff --git a/include/markdownify/example.php b/include/markdownify/example.php
deleted file mode 100644
index ef86dca83c..0000000000
--- a/include/markdownify/example.php
+++ /dev/null
@@ -1,51 +0,0 @@
-<?php
-	error_reporting(E_ALL);
-	if (!empty($_POST['input'])) {
-		include 'markdownify_extra.php';
-		if (!isset($_POST['leap'])) {
-			$leap = MDFY_LINKS_EACH_PARAGRAPH;
-		} else {
-			$leap = $_POST['leap'];
-		}
-		
-		if (!isset($_POST['keepHTML'])) {
-			$keephtml = MDFY_KEEPHTML;
-		} else {
-			$keephtml = $_POST['keepHTML'];
-		}
-		if (!empty($_POST['extra'])) {
-			$md = new Markdownify_Extra($leap, MDFY_BODYWIDTH, $keephtml);
-		} else {
-			$md = new Markdownify($leap, MDFY_BODYWIDTH, $keephtml);
-		}
-		if (ini_get('magic_quotes_gpc')) {
-			$_POST['input'] = stripslashes($_POST['input']);
-		}
-		$output = $md->parseString($_POST['input']);
-	} else {
-		$_POST['input'] = '';
-	}
-?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
-		<title>HTML to Markdown Converter</title>
-	</head>
-	<body>
-		<?php if (empty($_POST['input'])): ?>
-		<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
-			<fieldset>
-				<legend>HTML Input</legend>
-				<textarea style="width:100%;" cols="85" rows="40" name="input"><?php echo htmlspecialchars($_POST['input'], ENT_NOQUOTES, 'UTF-8'); ?></textarea>
-			</fieldset>
-			<label for="extra">Markdownify Extra: <input name="extra" checked="checked" id="extra" type="checkbox" value="1"  /></label>
-			<label for="leap">Links after each block elem: <input name="leap" id="leap" type="checkbox" value="1"  /></label>
-			<label for="keepHTML">keep HTML: <input name="keepHTML" id="keepHTML" type="checkbox" value="1" checked="checked" /></label>
-			<input type="submit" name="submit" value="submit" />
-		</form>
-		<?php else: ?>
-		<h1 style="text-align:right;"><a href="<?php echo $_SERVER['PHP_SELF']; ?>">BACK</a></h1>
-		<pre><?php echo htmlspecialchars($output, ENT_NOQUOTES, 'UTF-8'); ?></pre>
-		<?php endif; ?>
-	</body>
-</html>
\ No newline at end of file
diff --git a/include/markdownify/markdownify.php b/include/markdownify/markdownify.php
deleted file mode 100644
index 0d4429a013..0000000000
--- a/include/markdownify/markdownify.php
+++ /dev/null
@@ -1,1197 +0,0 @@
-<?php
-/**
- * Markdownify converts HTML Markup to [Markdown][1] (by [John Gruber][2]. It
- * also supports [Markdown Extra][3] by [Michel Fortin][4] via Markdownify_Extra.
- *
- * It all started as `html2text.php` - a port of [Aaron Swartz'][5] [`html2text.py`][6] - but
- * got a long way since. This is far more than a mere port now!
- * Starting with version 2.0.0 this is a complete rewrite and cannot be
- * compared to Aaron Swatz' `html2text.py` anylonger. I'm now using a HTML parser
- * (see `parsehtml.php` which I also wrote) which makes most of the evil
- * RegEx magic go away and additionally it gives a much cleaner class
- * structure. Also notably is the fact that I now try to prevent regressions by
- * utilizing testcases of Michel Fortin's [MDTest][7].
- *
- * [1]: http://daringfireball.com/projects/markdown
- * [2]: http://daringfireball.com/
- * [3]: http://www.michelf.com/projects/php-markdown/extra/
- * [4]: http://www.michelf.com/
- * [5]: http://www.aaronsw.com/
- * [6]: http://www.aaronsw.com/2002/html2text/
- * [7]: http://article.gmane.org/gmane.text.markdown.general/2540
- *
- * @version 2.0.0 alpha
- * @author Milian Wolff (<mail@milianw.de>, <http://milianw.de>)
- * @license LGPL, see LICENSE_LGPL.txt and the summary below
- * @copyright (C) 2007  Milian Wolff
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-/**
- * HTML Parser, see http://sf.net/projects/parseHTML
- */
-require_once dirname(__FILE__).'/parsehtml/parsehtml.php';
-
-/**
- * default configuration
- */
-define('MDFY_LINKS_EACH_PARAGRAPH', false);
-define('MDFY_BODYWIDTH', false);
-define('MDFY_KEEPHTML', true);
-
-/**
- * HTML to Markdown converter class
- */
-class Markdownify {
-  /**
-   * html parser object
-   *
-   * @var parseHTML
-   */
-  var $parser;
-  /**
-   * markdown output
-   *
-   * @var string
-   */
-  var $output;
-  /**
-   * stack with tags which where not converted to html
-   *
-   * @var array<string>
-   */
-  var $notConverted = array();
-  /**
-   * skip conversion to markdown
-   *
-   * @var bool
-   */
-  var $skipConversion = false;
-  /* options */
-  /**
-   * keep html tags which cannot be converted to markdown
-   *
-   * @var bool
-   */
-  var $keepHTML = false;
-  /**
-   * wrap output, set to 0 to skip wrapping
-   *
-   * @var int
-   */
-  var $bodyWidth = 0;
-  /**
-   * minimum body width
-   *
-   * @var int
-   */
-  var $minBodyWidth = 25;
-  /**
-   * display links after each paragraph
-   *
-   * @var bool
-   */
-  var $linksAfterEachParagraph = false;
-  /**
-   * constructor, set options, setup parser
-   *
-   * @param bool $linksAfterEachParagraph wether or not to flush stacked links after each paragraph
-   *             defaults to false
-   * @param int $bodyWidth wether or not to wrap the output to the given width
-   *             defaults to false
-   * @param bool $keepHTML wether to keep non markdownable HTML or to discard it
-   *             defaults to true (HTML will be kept)
-   * @return void
-   */
-  function Markdownify($linksAfterEachParagraph = MDFY_LINKS_EACH_PARAGRAPH, $bodyWidth = MDFY_BODYWIDTH, $keepHTML = MDFY_KEEPHTML) {
-    $this->linksAfterEachParagraph = $linksAfterEachParagraph;
-    $this->keepHTML = $keepHTML;
-
-    if ($bodyWidth > $this->minBodyWidth) {
-      $this->bodyWidth = intval($bodyWidth);
-    } else {
-      $this->bodyWidth = false;
-    }
-
-    $this->parser = new parseHTML;
-    $this->parser->noTagsInCode = true;
-
-    # we don't have to do this every time
-    $search = array();
-    $replace = array();
-    foreach ($this->escapeInText as $s => $r) {
-      array_push($search, '#(?<!\\\)'.$s.'#U');
-      array_push($replace, $r);
-    }
-    $this->escapeInText = array(
-      'search' => $search,
-      'replace' => $replace
-    );
-  }
-  /**
-   * parse a HTML string
-   *
-   * @param string $html
-   * @return string markdown formatted
-   */
-  function parseString($html) {
-    $this->parser->html = $html;
-    $this->parse();
-    return $this->output;
-  }
-  /**
-   * tags with elements which can be handled by markdown
-   *
-   * @var array<string>
-   */
-  var $isMarkdownable = array(
-    'p' => array(),
-    'ul' => array(),
-    'ol' => array(),
-    'li' => array(),
-    'br' => array(),
-    'blockquote' => array(),
-    'code' => array(),
-    'pre' => array(),
-    'a' => array(
-      'href' => 'required',
-      'title' => 'optional',
-    ),
-    'strong' => array(),
-    'b' => array(),
-    'em' => array(),
-    'i' => array(),
-    'img' => array(
-      'src' => 'required',
-      'alt' => 'optional',
-      'title' => 'optional',
-    ),
-    'h1' => array(),
-    'h2' => array(),
-    'h3' => array(),
-    'h4' => array(),
-    'h5' => array(),
-    'h6' => array(),
-    'hr' => array(),
-  );
-  /**
-   * html tags to be ignored (contents will be parsed)
-   *
-   * @var array<string>
-   */
-  var $ignore = array(
-    'html',
-    'body',
-  );
-  /**
-   * html tags to be dropped (contents will not be parsed!)
-   *
-   * @var array<string>
-   */
-  var $drop = array(
-    'script',
-    'head',
-    'style',
-    'form',
-    'area',
-    'object',
-    'param',
-    'iframe',
-  );
-  /**
-   * Markdown indents which could be wrapped
-   * @note: use strings in regex format
-   *
-   * @var array<string>
-   */
-  var $wrappableIndents = array(
-    '\*   ', # ul
-    '\d.  ', # ol
-    '\d\d. ', # ol
-    '> ', # blockquote
-    '', # p
-  );
-  /**
-   * list of chars which have to be escaped in normal text
-   * @note: use strings in regex format
-   *
-   * @var array
-   *
-   * TODO: what's with block chars / sequences at the beginning of a block?
-   */
-  var $escapeInText = array(
-    '([-*_])([ ]{0,2}\1){2,}' => '\\\\$0|', # hr
-    '\*\*([^*\s]+)\*\*' => '\*\*$1\*\*', # strong
-    '\*([^*\s]+)\*' => '\*$1\*', # em
-    '__(?! |_)(.+)(?!<_| )__' => '\_\_$1\_\_', # em
-    '_(?! |_)(.+)(?!<_| )_' => '\_$1\_', # em
-    '`(.+)`' => '\`$1\`', # code
-    '\[(.+)\](\s*\()' => '\[$1\]$2', # links: [text] (url) => [text\] (url)
-    '\[(.+)\](\s*)\[(.*)\]' => '\[$1\]$2\[$3\]', # links: [text][id] => [text\][id\]
-  );
-  /**
-   * wether last processed node was a block tag or not
-   *
-   * @var bool
-   */
-  var $lastWasBlockTag = false;
-  /**
-   * name of last closed tag
-   *
-   * @var string
-   */
-  var $lastClosedTag = '';
-  /**
-   * iterate through the nodes and decide what we
-   * shall do with the current node
-   *
-   * @param void
-   * @return void
-   */
-  function parse() {
-    $this->output = '';
-    # drop tags
-    $this->parser->html = preg_replace('#<('.implode('|', $this->drop).')[^>]*>.*</\\1>#sU', '', $this->parser->html);
-    while ($this->parser->nextNode()) {
-      switch ($this->parser->nodeType) {
-        case 'doctype':
-          break;
-        case 'pi':
-        case 'comment':
-          if ($this->keepHTML) {
-            $this->flushLinebreaks();
-            $this->out($this->parser->node);
-            $this->setLineBreaks(2);
-          }
-          # else drop
-          break;
-        case 'text':
-          $this->handleText();
-          break;
-        case 'tag':
-          if (in_array($this->parser->tagName, $this->ignore)) {
-            break;
-          }
-          if ($this->parser->isStartTag) {
-            $this->flushLinebreaks();
-          }
-          if ($this->skipConversion) {
-            $this->isMarkdownable(); # update notConverted
-            $this->handleTagToText();
-            continue;
-          }
-          if (!$this->parser->keepWhitespace && $this->parser->isBlockElement && $this->parser->isStartTag) {
-            $this->parser->html = ltrim($this->parser->html);
-          }
-          if ($this->isMarkdownable()) {
-            if ($this->parser->isBlockElement && $this->parser->isStartTag && !$this->lastWasBlockTag && !empty($this->output)) {
-              if (!empty($this->buffer)) {
-                $str =& $this->buffer[count($this->buffer) -1];
-              } else {
-                $str =& $this->output;
-              }
-              if (substr($str, -strlen($this->indent)-1) != "\n".$this->indent) {
-                $str .= "\n".$this->indent;
-              }
-            }
-            $func = 'handleTag_'.$this->parser->tagName;
-            $this->$func();
-            if ($this->linksAfterEachParagraph && $this->parser->isBlockElement && !$this->parser->isStartTag && empty($this->parser->openTags)) {
-              $this->flushStacked();
-            }
-            if (!$this->parser->isStartTag) {
-              $this->lastClosedTag = $this->parser->tagName;
-            }
-          } else {
-            $this->handleTagToText();
-            $this->lastClosedTag = '';
-          }
-          break;
-        default:
-          trigger_error('invalid node type', E_USER_ERROR);
-          break;
-      }
-      $this->lastWasBlockTag = $this->parser->nodeType == 'tag' && $this->parser->isStartTag && $this->parser->isBlockElement;
-    }
-    if (!empty($this->buffer)) {
-      trigger_error('buffer was not flushed, this is a bug. please report!', E_USER_WARNING);
-      while (!empty($this->buffer)) {
-        $this->out($this->unbuffer());
-      }
-    }
-    ### cleanup
-    $this->output = rtrim(str_replace('&amp;', '&', str_replace('&lt;', '<', str_replace('&gt;', '>', $this->output))));
-    # end parsing, flush stacked tags
-    $this->flushStacked();
-    $this->stack = array();
-  }
-  /**
-   * check if current tag can be converted to Markdown
-   *
-   * @param void
-   * @return bool
-   */
-  function isMarkdownable() {
-    if (!isset($this->isMarkdownable[$this->parser->tagName])) {
-      # simply not markdownable
-      return false;
-    }
-    if ($this->parser->isStartTag) {
-      $return = true;
-      if ($this->keepHTML) {
-        $diff = array_diff(array_keys($this->parser->tagAttributes), array_keys($this->isMarkdownable[$this->parser->tagName]));
-        if (!empty($diff)) {
-          # non markdownable attributes given
-          $return = false;
-        }
-      }
-      if ($return) {
-        foreach ($this->isMarkdownable[$this->parser->tagName] as $attr => $type) {
-          if ($type == 'required' && !isset($this->parser->tagAttributes[$attr])) {
-            # required markdown attribute not given
-            $return = false;
-            break;
-          }
-        }
-      }
-      if (!$return) {
-        array_push($this->notConverted, $this->parser->tagName.'::'.implode('/', $this->parser->openTags));
-      }
-      return $return;
-    } else {
-      if (!empty($this->notConverted) && end($this->notConverted) === $this->parser->tagName.'::'.implode('/', $this->parser->openTags)) {
-        array_pop($this->notConverted);
-        return false;
-      }
-      return true;
-    }
-  }
-  /**
-   * output all stacked tags
-   *
-   * @param void
-   * @return void
-   */
-  function flushStacked() {
-    # links
-    foreach ($this->stack as $tag => $a) {
-      if (!empty($a)) {
-        call_user_func(array(&$this, 'flushStacked_'.$tag));
-      }
-    }
-  }
-  /**
-   * output link references (e.g. [1]: http://example.com "title");
-   *
-   * @param void
-   * @return void
-   */
-  function flushStacked_a() {
-    $out = false;
-    foreach ($this->stack['a'] as $k => $tag) {
-      if (!isset($tag['unstacked'])) {
-        if (!$out) {
-          $out = true;
-          $this->out("\n\n", true);
-        } else {
-          $this->out("\n", true);
-        }
-        $this->out(' ['.$tag['linkID'].']: '.$tag['href'].(isset($tag['title']) ? ' "'.$tag['title'].'"' : ''), true);
-        $tag['unstacked'] = true;
-        $this->stack['a'][$k] = $tag;
-      }
-    }
-  }
-  /**
-   * flush enqued linebreaks
-   *
-   * @param void
-   * @return void
-   */
-  function flushLinebreaks() {
-    if ($this->lineBreaks && !empty($this->output)) {
-      $this->out(str_repeat("\n".$this->indent, $this->lineBreaks), true);
-    }
-    $this->lineBreaks = 0;
-  }
-  /**
-   * handle non Markdownable tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTagToText() {
-    if (!$this->keepHTML) {
-      if (!$this->parser->isStartTag && $this->parser->isBlockElement) {
-        $this->setLineBreaks(2);
-      }
-    } else {
-      # dont convert to markdown inside this tag
-      /** TODO: markdown extra **/
-      if (!$this->parser->isEmptyTag) {
-        if ($this->parser->isStartTag) {
-          if (!$this->skipConversion) {
-            $this->skipConversion = $this->parser->tagName.'::'.implode('/', $this->parser->openTags);
-          }
-        } else {
-          if ($this->skipConversion == $this->parser->tagName.'::'.implode('/', $this->parser->openTags)) {
-            $this->skipConversion = false;
-          }
-        }
-      }
-
-      if ($this->parser->isBlockElement) {
-        if ($this->parser->isStartTag) {
-          if (in_array($this->parent(), array('ins', 'del'))) {
-            # looks like ins or del are block elements now
-            $this->out("\n", true);
-            $this->indent('  ');
-          }
-          if ($this->parser->tagName != 'pre') {
-            $this->out($this->parser->node."\n".$this->indent);
-            if (!$this->parser->isEmptyTag) {
-              $this->indent('  ');
-            } else {
-              $this->setLineBreaks(1);
-            }
-            $this->parser->html = ltrim($this->parser->html);
-          } else {
-            # don't indent inside <pre> tags
-            $this->out($this->parser->node);
-            static $indent;
-            $indent =  $this->indent;
-            $this->indent = '';
-          }
-        } else {
-          if (!$this->parser->keepWhitespace) {
-            $this->output = rtrim($this->output);
-          }
-          if ($this->parser->tagName != 'pre') {
-            $this->indent('  ');
-            $this->out("\n".$this->indent.$this->parser->node);
-          } else {
-            # reset indentation
-            $this->out($this->parser->node);
-            static $indent;
-            $this->indent = $indent;
-          }
-
-          if (in_array($this->parent(), array('ins', 'del'))) {
-            # ins or del was block element
-            $this->out("\n");
-            $this->indent('  ');
-          }
-          if ($this->parser->tagName == 'li') {
-            $this->setLineBreaks(1);
-          } else {
-            $this->setLineBreaks(2);
-          }
-        }
-      } else {
-        $this->out($this->parser->node);
-      }
-      if (in_array($this->parser->tagName, array('code', 'pre'))) {
-        if ($this->parser->isStartTag) {
-          $this->buffer();
-        } else {
-          # add stuff so cleanup just reverses this
-          $this->out(str_replace('&lt;', '&amp;lt;', str_replace('&gt;', '&amp;gt;', $this->unbuffer())));
-        }
-      }
-    }
-  }
-  /**
-   * handle plain text
-   *
-   * @param void
-   * @return void
-   */
-  function handleText() {
-    if ($this->hasParent('pre') && strpos($this->parser->node, "\n") !== false) {
-      $this->parser->node = str_replace("\n", "\n".$this->indent, $this->parser->node);
-    }
-    if (!$this->hasParent('code') && !$this->hasParent('pre')) {
-      # entity decode
-      $this->parser->node = $this->decode($this->parser->node);
-      if (!$this->skipConversion) {
-        # escape some chars in normal Text
-        $this->parser->node = preg_replace($this->escapeInText['search'], $this->escapeInText['replace'], $this->parser->node);
-      }
-    } else {
-      $this->parser->node = str_replace(array('&quot;', '&apos'), array('"', '\''), $this->parser->node);
-    }
-    $this->out($this->parser->node);
-    $this->lastClosedTag = '';
-  }
-  /**
-   * handle <em> and <i> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_em() {
-    $this->out('*', true);
-  }
-  function handleTag_i() {
-    $this->handleTag_em();
-  }
-  /**
-   * handle <strong> and <b> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_strong() {
-    $this->out('**', true);
-  }
-  function handleTag_b() {
-    $this->handleTag_strong();
-  }
-  /**
-   * handle <h1> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_h1() {
-    $this->handleHeader(1);
-  }
-  /**
-   * handle <h2> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_h2() {
-    $this->handleHeader(2);
-  }
-  /**
-   * handle <h3> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_h3() {
-    $this->handleHeader(3);
-  }
-  /**
-   * handle <h4> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_h4() {
-    $this->handleHeader(4);
-  }
-  /**
-   * handle <h5> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_h5() {
-    $this->handleHeader(5);
-  }
-  /**
-   * handle <h6> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_h6() {
-    $this->handleHeader(6);
-  }
-  /**
-   * number of line breaks before next inline output
-   */
-  var $lineBreaks = 0;
-  /**
-   * handle header tags (<h1> - <h6>)
-   *
-   * @param int $level 1-6
-   * @return void
-   */
-  function handleHeader($level) {
-    if ($this->parser->isStartTag) {
-      $this->out(str_repeat('#', $level).' ', true);
-    } else {
-      $this->setLineBreaks(2);
-    }
-  }
-  /**
-   * handle <p> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_p() {
-    if (!$this->parser->isStartTag) {
-      $this->setLineBreaks(2);
-    }
-  }
-  /**
-   * handle <a> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_a() {
-    if ($this->parser->isStartTag) {
-      $this->buffer();
-      if (isset($this->parser->tagAttributes['title'])) {
-        $this->parser->tagAttributes['title'] = $this->decode($this->parser->tagAttributes['title']);
-      } else {
-        $this->parser->tagAttributes['title'] = null;
-      }
-      $this->parser->tagAttributes['href'] = $this->decode(trim($this->parser->tagAttributes['href']));
-      $this->stack();
-    } else {
-      $tag = $this->unstack();
-      $buffer = $this->unbuffer();
-
-      if (empty($tag['href']) && empty($tag['title'])) {
-        # empty links... testcase mania, who would possibly do anything like that?!
-        $this->out('['.$buffer.']()', true);
-        return;
-      }
-
-      if ($buffer == $tag['href'] && empty($tag['title'])) {
-        # <http://example.com>
-        $this->out('<'.$buffer.'>', true);
-        return;
-      }
-
-      $bufferDecoded = $this->decode(trim($buffer));
-      if (substr($tag['href'], 0, 7) == 'mailto:' && 'mailto:'.$bufferDecoded == $tag['href']) {
-        if (is_null($tag['title'])) {
-          # <mail@example.com>
-          $this->out('<'.$bufferDecoded.'>', true);
-          return;
-        }
-        # [mail@example.com][1]
-        # ...
-        #  [1]: mailto:mail@example.com Title
-        $tag['href'] = 'mailto:'.$bufferDecoded;
-      }
-
-      $this->out('['.$buffer.']('.$tag['href'].' "'.$tag['title'].'")', true);
-
-/*
-      # [This link][id]
-      foreach ($this->stack['a'] as $tag2) {
-        if ($tag2['href'] == $tag['href'] && $tag2['title'] === $tag['title']) {
-          $tag['linkID'] = $tag2['linkID'];
-          break;
-        }
-      }
-      if (!isset($tag['linkID'])) {
-        $tag['linkID'] = count($this->stack['a']) + 1;
-        array_push($this->stack['a'], $tag);
-      }
-
-      $this->out('['.$buffer.']['.$tag['linkID'].']', true);
-*/
-    }
-  }
-  /**
-   * handle <img /> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_img() {
-    if (!$this->parser->isStartTag) {
-      return; # just to be sure this is really an empty tag...
-    }
-
-    if (isset($this->parser->tagAttributes['title'])) {
-      $this->parser->tagAttributes['title'] = $this->decode($this->parser->tagAttributes['title']);
-    } else {
-      $this->parser->tagAttributes['title'] = null;
-    }
-    if (isset($this->parser->tagAttributes['alt'])) {
-      $this->parser->tagAttributes['alt'] = $this->decode($this->parser->tagAttributes['alt']);
-    } else {
-      $this->parser->tagAttributes['alt'] = null;
-    }
-
-    if (empty($this->parser->tagAttributes['src'])) {
-      # support for "empty" images... dunno if this is really needed
-      # but there are some testcases which do that...
-      if (!empty($this->parser->tagAttributes['title'])) {
-        $this->parser->tagAttributes['title'] = ' '.$this->parser->tagAttributes['title'].' ';
-      }
-      $this->out('!['.$this->parser->tagAttributes['alt'].']('.$this->parser->tagAttributes['title'].')', true);
-      return;
-    } else {
-      $this->parser->tagAttributes['src'] = $this->decode($this->parser->tagAttributes['src']);
-    }
-
-// ![Alt text](/path/to/img.jpg "Optional title")
-    if ($this->parser->tagAttributes['title'] != "")
-      $this->out('!['.$this->parser->tagAttributes['alt'].']('.$this->parser->tagAttributes['src'].' "'.$this->parser->tagAttributes['title'].'")', true);
-    else
-      $this->out('!['.$this->parser->tagAttributes['alt'].']('.$this->parser->tagAttributes['src'].')', true);
-
-/*
-    # [This link][id]
-    $link_id = false;
-    if (!empty($this->stack['a'])) {
-      foreach ($this->stack['a'] as $tag) {
-        if ($tag['href'] == $this->parser->tagAttributes['src']
-            && $tag['title'] === $this->parser->tagAttributes['title']) {
-          $link_id = $tag['linkID'];
-          break;
-        }
-      }
-    } else {
-      $this->stack['a'] = array();
-    }
-    if (!$link_id) {
-      $link_id = count($this->stack['a']) + 1;
-      $tag = array(
-        'href' => $this->parser->tagAttributes['src'],
-        'linkID' => $link_id,
-        'title' => $this->parser->tagAttributes['title']
-      );
-      array_push($this->stack['a'], $tag);
-    }
-
-    $this->out('!['.$this->parser->tagAttributes['alt'].']['.$link_id.']', true);
-*/
-  }
-  /**
-   * handle <code> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_code() {
-    if ($this->hasParent('pre')) {
-      # ignore code blocks inside <pre>
-      return;
-    }
-    if ($this->parser->isStartTag) {
-      $this->buffer();
-    } else {
-      $buffer = $this->unbuffer();
-      # use as many backticks as needed
-      preg_match_all('#`+#', $buffer, $matches);
-      if (!empty($matches[0])) {
-        rsort($matches[0]);
-
-        $ticks = '`';
-        while (true) {
-          if (!in_array($ticks, $matches[0])) {
-            break;
-          }
-          $ticks .= '`';
-        }
-      } else {
-        $ticks = '`';
-      }
-      if ($buffer[0] == '`' || substr($buffer, -1) == '`') {
-        $buffer = ' '.$buffer.' ';
-      }
-      $this->out($ticks.$buffer.$ticks, true);
-    }
-  }
-  /**
-   * handle <pre> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_pre() {
-    if ($this->keepHTML && $this->parser->isStartTag) {
-      # check if a simple <code> follows
-      if (!preg_match('#^\s*<code\s*>#Us', $this->parser->html)) {
-        # this is no standard markdown code block
-        $this->handleTagToText();
-        return;
-      }
-    }
-    $this->indent('    ');
-    if (!$this->parser->isStartTag) {
-      $this->setLineBreaks(2);
-    } else {
-      $this->parser->html = ltrim($this->parser->html);
-    }
-  }
-  /**
-   * handle <blockquote> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_blockquote() {
-    $this->indent('> ');
-  }
-  /**
-   * handle <ul> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_ul() {
-    if ($this->parser->isStartTag) {
-      $this->stack();
-      if (!$this->keepHTML && $this->lastClosedTag == $this->parser->tagName) {
-        $this->out("\n".$this->indent.'<!-- -->'."\n".$this->indent."\n".$this->indent);
-      }
-    } else {
-      $this->unstack();
-      if ($this->parent() != 'li' || preg_match('#^\s*(</li\s*>\s*<li\s*>\s*)?<(p|blockquote)\s*>#sU', $this->parser->html)) {
-        # dont make Markdown add unneeded paragraphs
-        $this->setLineBreaks(2);
-      }
-    }
-  }
-  /**
-   * handle <ul> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_ol() {
-    # same as above
-    $this->parser->tagAttributes['num'] = 0;
-    $this->handleTag_ul();
-  }
-  /**
-   * handle <li> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_li() {
-    if ($this->parent() == 'ol') {
-      $parent =& $this->getStacked('ol');
-      if ($this->parser->isStartTag) {
-        $parent['num']++;
-        $this->out($parent['num'].'.'.str_repeat(' ', 3 - strlen($parent['num'])), true);
-      }
-      $this->indent('    ', false);
-    } else {
-      if ($this->parser->isStartTag) {
-        $this->out('*   ', true);
-      }
-      $this->indent('    ', false);
-    }
-    if (!$this->parser->isStartTag) {
-      $this->setLineBreaks(1);
-    }
-  }
-  /**
-   * handle <hr /> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_hr() {
-    if (!$this->parser->isStartTag) {
-      return; # just to be sure this really is an empty tag
-    }
-    $this->out('* * *', true);
-    $this->setLineBreaks(2);
-  }
-  /**
-   * handle <br /> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_br() {
-    $this->out("  \n".$this->indent, true);
-    $this->parser->html = ltrim($this->parser->html);
-  }
-  /**
-   * node stack, e.g. for <a> and <abbr> tags
-   *
-   * @var array<array>
-   */
-  var $stack = array();
-  /**
-   * add current node to the stack
-   * this only stores the attributes
-   *
-   * @param void
-   * @return void
-   */
-  function stack() {
-    if (!isset($this->stack[$this->parser->tagName])) {
-      $this->stack[$this->parser->tagName] = array();
-    }
-    array_push($this->stack[$this->parser->tagName], $this->parser->tagAttributes);
-  }
-  /**
-   * remove current tag from stack
-   *
-   * @param void
-   * @return array
-   */
-  function unstack() {
-    if (!isset($this->stack[$this->parser->tagName]) || !is_array($this->stack[$this->parser->tagName])) {
-      trigger_error('Trying to unstack from empty stack. This must not happen.', E_USER_ERROR);
-    }
-    return array_pop($this->stack[$this->parser->tagName]);
-  }
-  /**
-   * get last stacked element of type $tagName
-   *
-   * @param string $tagName
-   * @return array
-   */
-  function & getStacked($tagName) {
-    // no end() so it can be referenced
-    return $this->stack[$tagName][count($this->stack[$tagName])-1];
-  }
-  /**
-   * set number of line breaks before next start tag
-   *
-   * @param int $number
-   * @return void
-   */
-  function setLineBreaks($number) {
-    if ($this->lineBreaks < $number) {
-      $this->lineBreaks = $number;
-    }
-  }
-  /**
-   * stores current buffers
-   *
-   * @var array<string>
-   */
-  var $buffer = array();
-  /**
-   * buffer next parser output until unbuffer() is called
-   *
-   * @param void
-   * @return void
-   */
-  function buffer() {
-    array_push($this->buffer, '');
-  }
-  /**
-   * end current buffer and return buffered output
-   *
-   * @param void
-   * @return string
-   */
-  function unbuffer() {
-    return array_pop($this->buffer);
-  }
-  /**
-   * append string to the correct var, either
-   * directly to $this->output or to the current
-   * buffers
-   *
-   * @param string $put
-   * @return void
-   */
-  function out($put, $nowrap = false) {
-    if (empty($put)) {
-      return;
-    }
-    if (!empty($this->buffer)) {
-      $this->buffer[count($this->buffer) - 1] .= $put;
-    } else {
-      if ($this->bodyWidth && !$this->parser->keepWhitespace) { # wrap lines
-        // get last line
-        $pos = strrpos($this->output, "\n");
-        if ($pos === false) {
-          $line = $this->output;
-        } else {
-          $line = substr($this->output, $pos);
-        }
-
-        if ($nowrap) {
-          if ($put[0] != "\n" && $this->strlen($line) + $this->strlen($put) > $this->bodyWidth) {
-            $this->output .= "\n".$this->indent.$put;
-          } else {
-            $this->output .= $put;
-          }
-          return;
-        } else {
-          $put .= "\n"; # make sure we get all lines in the while below
-          $lineLen = $this->strlen($line);
-          while ($pos = strpos($put, "\n")) {
-            $putLine = substr($put, 0, $pos+1);
-            $put = substr($put, $pos+1);
-            $putLen = $this->strlen($putLine);
-            if ($lineLen + $putLen < $this->bodyWidth) {
-              $this->output .= $putLine;
-              $lineLen = $putLen;
-            } else {
-              $split = preg_split('#^(.{0,'.($this->bodyWidth - $lineLen).'})\b#', $putLine, 2, PREG_SPLIT_OFFSET_CAPTURE | PREG_SPLIT_DELIM_CAPTURE);
-              $this->output .= rtrim($split[1][0])."\n".$this->indent.$this->wordwrap(ltrim($split[2][0]), $this->bodyWidth, "\n".$this->indent, false);
-            }
-          }
-          $this->output = substr($this->output, 0, -1);
-          return;
-        }
-      } else {
-        $this->output .= $put;
-      }
-    }
-  }
-  /**
-   * current indentation
-   *
-   * @var string
-   */
-  var $indent = '';
-  /**
-   * indent next output (start tag) or unindent (end tag)
-   *
-   * @param string $str indentation
-   * @param bool $output add indendation to output
-   * @return void
-   */
-  function indent($str, $output = true) {
-    if ($this->parser->isStartTag) {
-      $this->indent .= $str;
-      if ($output) {
-        $this->out($str, true);
-      }
-    } else {
-      $this->indent = substr($this->indent, 0, -strlen($str));
-    }
-  }
-  /**
-   * decode email addresses
-   *
-   * @author derernst@gmx.ch <http://www.php.net/manual/en/function.html-entity-decode.php#68536>
-   * @author Milian Wolff <http://milianw.de>
-   */
-  function decode($text, $quote_style = ENT_QUOTES) {
-    if (version_compare(PHP_VERSION, '5', '>=')) {
-      # UTF-8 is only supported in PHP 5.x.x and above
-      $text = html_entity_decode($text, $quote_style, 'UTF-8');
-    } else {
-      if (function_exists('html_entity_decode')) {
-        $text = html_entity_decode($text, $quote_style, 'ISO-8859-1');
-      } else {
-        static $trans_tbl;
-        if (!isset($trans_tbl)) {
-          $trans_tbl = array_flip(get_html_translation_table(HTML_ENTITIES, $quote_style));
-        }
-        $text = strtr($text, $trans_tbl);
-      }
-      $text = preg_replace_callback('~&#x([0-9a-f]+);~i', array(&$this, '_decode_hex'), $text);
-      $text = preg_replace_callback('~&#(\d{2,5});~', array(&$this, '_decode_numeric'), $text);
-    }
-    return $text;
-  }
-  /**
-   * callback for decode() which converts a hexadecimal entity to UTF-8
-   *
-   * @param array $matches
-   * @return string UTF-8 encoded
-   */
-  function _decode_hex($matches) {
-    return $this->unichr(hexdec($matches[1]));
-  }
-  /**
-   * callback for decode() which converts a numerical entity to UTF-8
-   *
-   * @param array $matches
-   * @return string UTF-8 encoded
-   */
-  function _decode_numeric($matches) {
-    return $this->unichr($matches[1]);
-  }
-  /**
-   * UTF-8 chr() which supports numeric entities
-   *
-   * @author grey - greywyvern - com <http://www.php.net/manual/en/function.chr.php#55978>
-   * @param array $matches
-   * @return string UTF-8 encoded
-   */
-  function unichr($dec) {
-    if ($dec < 128) {
-      $utf = chr($dec);
-    } else if ($dec < 2048) {
-      $utf = chr(192 + (($dec - ($dec % 64)) / 64));
-      $utf .= chr(128 + ($dec % 64));
-    } else {
-      $utf = chr(224 + (($dec - ($dec % 4096)) / 4096));
-      $utf .= chr(128 + ((($dec % 4096) - ($dec % 64)) / 64));
-      $utf .= chr(128 + ($dec % 64));
-    }
-    return $utf;
-  }
-  /**
-   * UTF-8 strlen()
-   *
-   * @param string $str
-   * @return int
-   *
-   * @author dtorop 932 at hotmail dot com <http://www.php.net/manual/en/function.strlen.php#37975>
-   * @author Milian Wolff <http://milianw.de>
-   */
-  function strlen($str) {
-    if (function_exists('mb_strlen')) {
-      return mb_strlen($str, 'UTF-8');
-    } else {
-      return preg_match_all('/[\x00-\x7F\xC0-\xFD]/', $str, $var_empty);
-    }
-  }
-  /**
-  * wordwrap for utf8 encoded strings
-  *
-  * @param string $str
-  * @param integer $len
-  * @param string $what
-  * @return string
-  */
-  function wordwrap($str, $width, $break, $cut = false){
-    if (!$cut) {
-      $regexp = '#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){1,'.$width.'}\b#';
-    } else {
-      $regexp = '#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){'.$width.'}#';
-    }
-    $return = '';
-    while (preg_match($regexp, $str, $matches)) {
-      $string = $matches[0];
-      $str = ltrim(substr($str, strlen($string)));
-      if (!$cut && isset($str[0]) && in_array($str[0], array('.', '!', ';', ':', '?', ','))) {
-        $string .= $str[0];
-        $str = ltrim(substr($str, 1));
-      }
-      $return .= $string.$break;
-    }
-    return $return.ltrim($str);
-  }
-  /**
-   * check if current node has a $tagName as parent (somewhere, not only the direct parent)
-   *
-   * @param string $tagName
-   * @return bool
-   */
-  function hasParent($tagName) {
-    return in_array($tagName, $this->parser->openTags);
-  }
-  /**
-   * get tagName of direct parent tag
-   *
-   * @param void
-   * @return string $tagName
-   */
-  function parent() {
-    return end($this->parser->openTags);
-  }
-}
diff --git a/include/markdownify/markdownify_cli.php b/include/markdownify/markdownify_cli.php
deleted file mode 100755
index b3fffbd5cb..0000000000
--- a/include/markdownify/markdownify_cli.php
+++ /dev/null
@@ -1,33 +0,0 @@
-#!/usr/bin/php
-<?php
-require dirname(__FILE__) .'/markdownify_extra.php';
-
-function param($name, $default = false) {
-  if (!in_array('--'.$name, $_SERVER['argv']))
-    return $default;
-  reset($_SERVER['argv']);
-  while (each($_SERVER['argv'])) {
-    if (current($_SERVER['argv']) == '--'.$name)
-      break;
-  }
-  $value = next($_SERVER['argv']);
-  if ($value === false || substr($value, 0, 2) == '--')
-    return true;
-  else
-    return $value;
-}
-
-
-$input = stream_get_contents(STDIN);
-
-$linksAfterEachParagraph = param('links');
-$bodyWidth = param('width');
-$keepHTML = param('html', true);
-
-if (param('no_extra')) {
-  $parser = new Markdownify($linksAfterEachParagraph, $bodyWidth, $keepHTML);
-} else {
-  $parser = new Markdownify_Extra($linksAfterEachParagraph, $bodyWidth, $keepHTML);
-}
-
-echo $parser->parseString($input) ."\n";
\ No newline at end of file
diff --git a/include/markdownify/markdownify_extra.php b/include/markdownify/markdownify_extra.php
deleted file mode 100644
index e978a1c8a8..0000000000
--- a/include/markdownify/markdownify_extra.php
+++ /dev/null
@@ -1,489 +0,0 @@
-<?php
-/**
- * Class to convert HTML to Markdown with PHP Markdown Extra syntax support.
- *
- * @version 1.0.0 alpha
- * @author Milian Wolff (<mail@milianw.de>, <http://milianw.de>)
- * @license LGPL, see LICENSE_LGPL.txt and the summary below
- * @copyright (C) 2007  Milian Wolff
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-/**
- * standard Markdownify class
- */
-require_once dirname(__FILE__).'/markdownify.php';
-
-class Markdownify_Extra extends Markdownify {
-  /**
-   * table data, including rows with content and the maximum width of each col
-   *
-   * @var array
-   */
-  var $table = array();
-  /**
-   * current col
-   *
-   * @var int
-   */
-  var $col = -1;
-  /**
-   * current row
-   *
-   * @var int
-   */
-  var $row = 0;
-  /**
-   * constructor, see Markdownify::Markdownify() for more information
-   */
-  function Markdownify_Extra($linksAfterEachParagraph = MDFY_LINKS_EACH_PARAGRAPH, $bodyWidth = MDFY_BODYWIDTH, $keepHTML = MDFY_KEEPHTML) {
-    parent::Markdownify($linksAfterEachParagraph, $bodyWidth, $keepHTML);
-
-    ### new markdownable tags & attributes
-    # header ids: # foo {bar}
-    $this->isMarkdownable['h1']['id'] = 'optional';
-    $this->isMarkdownable['h2']['id'] = 'optional';
-    $this->isMarkdownable['h3']['id'] = 'optional';
-    $this->isMarkdownable['h4']['id'] = 'optional';
-    $this->isMarkdownable['h5']['id'] = 'optional';
-    $this->isMarkdownable['h6']['id'] = 'optional';
-    # tables
-    $this->isMarkdownable['table'] = array();
-    $this->isMarkdownable['th'] = array(
-      'align' => 'optional',
-    );
-    $this->isMarkdownable['td'] = array(
-      'align' => 'optional',
-    );
-    $this->isMarkdownable['tr'] = array();
-    array_push($this->ignore, 'thead');
-    array_push($this->ignore, 'tbody');
-    array_push($this->ignore, 'tfoot');
-    # definition lists
-    $this->isMarkdownable['dl'] = array();
-    $this->isMarkdownable['dd'] = array();
-    $this->isMarkdownable['dt'] = array();
-    # footnotes
-    $this->isMarkdownable['fnref'] = array(
-      'target' => 'required',
-    );
-    $this->isMarkdownable['footnotes'] = array();
-    $this->isMarkdownable['fn'] = array(
-      'name' => 'required',
-    );
-    $this->parser->blockElements['fnref'] = false;
-    $this->parser->blockElements['fn'] = true;
-    $this->parser->blockElements['footnotes'] = true;
-    # abbr
-    $this->isMarkdownable['abbr'] = array(
-      'title' => 'required',
-    );
-    # build RegEx lookahead to decide wether table can pe parsed or not
-    $inlineTags = array_keys($this->parser->blockElements, false);
-    $colContents = '(?:[^<]|<(?:'.implode('|', $inlineTags).'|[^a-z]))+';
-    $this->tableLookaheadHeader = '{
-    ^\s*(?:<thead\s*>)?\s*                               # open optional thead
-      <tr\s*>\s*(?:                                    # start required row with headers
-        <th(?:\s+align=("|\')(?:left|center|right)\1)?\s*>   # header with optional align
-        \s*'.$colContents.'\s*                       # contents
-        </th>\s*                                     # close header
-      )+</tr>                                          # close row with headers
-    \s*(?:</thead>)?                                     # close optional thead
-    }sxi';
-    $this->tdSubstitute = '\s*'.$colContents.'\s*        # contents
-          </td>\s*';
-    $this->tableLookaheadBody = '{
-      \s*(?:<tbody\s*>)?\s*                            # open optional tbody
-        (?:<tr\s*>\s*                                # start row
-          %s                                       # cols to be substituted
-        </tr>)+                                      # close row
-      \s*(?:</tbody>)?                                 # close optional tbody
-    \s*</table>                                          # close table
-    }sxi';
-  }
-  /**
-   * handle header tags (<h1> - <h6>)
-   *
-   * @param int $level 1-6
-   * @return void
-   */
-  function handleHeader($level) {
-    static $id = null;
-    if ($this->parser->isStartTag) {
-      if (isset($this->parser->tagAttributes['id'])) {
-        $id = $this->parser->tagAttributes['id'];
-      }
-    } else {
-      if (!is_null($id)) {
-        $this->out(' {#'.$id.'}');
-        $id = null;
-      }
-    }
-    parent::handleHeader($level);
-  }
-  /**
-   * handle <abbr> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_abbr() {
-    if ($this->parser->isStartTag) {
-      $this->stack();
-      $this->buffer();
-    } else {
-      $tag = $this->unstack();
-      $tag['text'] = $this->unbuffer();
-      $add = true;
-      foreach ($this->stack['abbr'] as $stacked) {
-        if ($stacked['text'] == $tag['text']) {
-          /** TODO: differing abbr definitions, i.e. different titles for same text **/
-          $add = false;
-          break;
-        }
-      }
-      $this->out($tag['text']);
-      if ($add) {
-        array_push($this->stack['abbr'], $tag);
-      }
-    }
-  }
-  /**
-   * flush stacked abbr tags
-   *
-   * @param void
-   * @return void
-   */
-  function flushStacked_abbr() {
-    $out = array();
-    foreach ($this->stack['abbr'] as $k => $tag) {
-      if (!isset($tag['unstacked'])) {
-        array_push($out, ' *['.$tag['text'].']: '.$tag['title']);
-        $tag['unstacked'] = true;
-        $this->stack['abbr'][$k] = $tag;
-      }
-    }
-    if (!empty($out)) {
-      $this->out("\n\n".implode("\n", $out));
-    }
-  }
-  /**
-   * handle <table> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_table() {
-    if ($this->parser->isStartTag) {
-      # check if upcoming table can be converted
-      if ($this->keepHTML) {
-        if (preg_match($this->tableLookaheadHeader, $this->parser->html, $matches)) {
-          # header seems good, now check body
-          # get align & number of cols
-          preg_match_all('#<th(?:\s+align=("|\')(left|right|center)\1)?\s*>#si', $matches[0], $cols);
-          $regEx = '';
-          $i = 1;
-          $aligns = array();
-          foreach ($cols[2] as $align) {
-            $align = strtolower($align);
-            array_push($aligns, $align);
-            if (empty($align)) {
-              $align = 'left'; # default value
-            }
-            $td = '\s+align=("|\')'.$align.'\\'.$i;
-            $i++;
-            if ($align == 'left') {
-              # look for empty align or left
-              $td = '(?:'.$td.')?';
-            }
-            $td = '<td'.$td.'\s*>';
-            $regEx .= $td.$this->tdSubstitute;
-          }
-          $regEx = sprintf($this->tableLookaheadBody, $regEx);
-          if (preg_match($regEx, $this->parser->html, $matches, null, strlen($matches[0]))) {
-            # this is a markdownable table tag!
-            $this->table = array(
-              'rows' => array(),
-              'col_widths' => array(),
-              'aligns' => $aligns,
-            );
-            $this->row = 0;
-          } else {
-            # non markdownable table
-            $this->handleTagToText();
-          }
-        } else {
-          # non markdownable table
-          $this->handleTagToText();
-        }
-      } else {
-        $this->table = array(
-          'rows' => array(),
-          'col_widths' => array(),
-          'aligns' => array(),
-        );
-        $this->row = 0;
-      }
-    } else {
-      # finally build the table in Markdown Extra syntax
-      $separator = array();
-      # seperator with correct align identifikators
-      foreach($this->table['aligns'] as $col => $align) {
-        if (!$this->keepHTML && !isset($this->table['col_widths'][$col])) {
-          break;
-        }
-        $left = ' ';
-        $right = ' ';
-        switch ($align) {
-          case 'left':
-            $left = ':';
-            break;
-          case 'center':
-            $right = ':';
-            $left = ':';
-          case 'right':
-            $right = ':';
-            break;
-        }
-        array_push($separator, $left.str_repeat('-', $this->table['col_widths'][$col]).$right);
-      }
-      $separator = '|'.implode('|', $separator).'|';
-
-      $rows = array();
-      # add padding
-      array_walk_recursive($this->table['rows'], array(&$this, 'alignTdContent'));
-      $header = array_shift($this->table['rows']);
-      array_push($rows, '| '.implode(' | ', $header).' |');
-      array_push($rows, $separator);
-      foreach ($this->table['rows'] as $row) {
-        array_push($rows, '| '.implode(' | ', $row).' |');
-      }
-      $this->out(implode("\n".$this->indent, $rows));
-      $this->table = array();
-      $this->setLineBreaks(2);
-    }
-  }
-  /**
-   * properly pad content so it is aligned as whished
-   * should be used with array_walk_recursive on $this->table['rows']
-   *
-   * @param string &$content
-   * @param int $col
-   * @return void
-   */
-  function alignTdContent(&$content, $col) {
-    switch ($this->table['aligns'][$col]) {
-      default:
-      case 'left':
-        $content .= str_repeat(' ', $this->table['col_widths'][$col] - $this->strlen($content));
-        break;
-      case 'right':
-        $content = str_repeat(' ', $this->table['col_widths'][$col] - $this->strlen($content)).$content;
-        break;
-      case 'center':
-        $paddingNeeded = $this->table['col_widths'][$col] - $this->strlen($content);
-        $left = floor($paddingNeeded / 2);
-        $right = $paddingNeeded - $left;
-        $content = str_repeat(' ', $left).$content.str_repeat(' ', $right);
-        break;
-    }
-  }
-  /**
-   * handle <tr> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_tr() {
-    if ($this->parser->isStartTag) {
-      $this->col = -1;
-    } else {
-      $this->row++;
-    }
-  }
-  /**
-   * handle <td> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_td() {
-    if ($this->parser->isStartTag) {
-      $this->col++;
-      if (!isset($this->table['col_widths'][$this->col])) {
-        $this->table['col_widths'][$this->col] = 0;
-      }
-      $this->buffer();
-    } else {
-      $buffer = trim($this->unbuffer());
-      $this->table['col_widths'][$this->col] = max($this->table['col_widths'][$this->col], $this->strlen($buffer));
-      $this->table['rows'][$this->row][$this->col] = $buffer;
-    }
-  }
-  /**
-   * handle <th> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_th() {
-    if (!$this->keepHTML && !isset($this->table['rows'][1]) && !isset($this->table['aligns'][$this->col+1])) {
-      if (isset($this->parser->tagAttributes['align'])) {
-        $this->table['aligns'][$this->col+1] = $this->parser->tagAttributes['align'];
-      } else {
-        $this->table['aligns'][$this->col+1] = '';
-      }
-    }
-    $this->handleTag_td();
-  }
-  /**
-   * handle <dl> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_dl() {
-    if (!$this->parser->isStartTag) {
-      $this->setLineBreaks(2);
-    }
-  }
-  /**
-   * handle <dt> tags
-   *
-   * @param void
-   * @return void
-   **/
-  function handleTag_dt() {
-    if (!$this->parser->isStartTag) {
-      $this->setLineBreaks(1);
-    }
-  }
-  /**
-   * handle <dd> tags
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_dd() {
-    if ($this->parser->isStartTag) {
-      if (substr(ltrim($this->parser->html), 0, 3) == '<p>') {
-        # next comes a paragraph, so we'll need an extra line
-        $this->out("\n".$this->indent);
-      } elseif (substr($this->output, -2) == "\n\n") {
-        $this->output = substr($this->output, 0, -1);
-      }
-      $this->out(':   ');
-      $this->indent('    ', false);
-    } else {
-      # lookahead for next dt
-      if (substr(ltrim($this->parser->html), 0, 4) == '<dt>') {
-        $this->setLineBreaks(2);
-      } else {
-        $this->setLineBreaks(1);
-      }
-      $this->indent('    ');
-    }
-  }
-  /**
-   * handle <fnref /> tags (custom footnote references, see markdownify_extra::parseString())
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_fnref() {
-    $this->out('[^'.$this->parser->tagAttributes['target'].']');
-  }
-  /**
-   * handle <fn> tags (custom footnotes, see markdownify_extra::parseString()
-   * and markdownify_extra::_makeFootnotes())
-   *
-   * @param void
-   * @return void
-   */
-  function handleTag_fn() {
-    if ($this->parser->isStartTag) {
-      $this->out('[^'.$this->parser->tagAttributes['name'].']:');
-      $this->setLineBreaks(1);
-    } else {
-      $this->setLineBreaks(2);
-    }
-    $this->indent('    ');
-  }
-  /**
-   * handle <footnotes> tag (custom footnotes, see markdownify_extra::parseString()
-   *  and markdownify_extra::_makeFootnotes())
-   *
-   *  @param void
-   *  @return void
-   */
-  function handleTag_footnotes() {
-    if (!$this->parser->isStartTag) {
-      $this->setLineBreaks(2);
-    }
-  }
-  /**
-   * parse a HTML string, clean up footnotes prior
-   *
-   * @param string $HTML input
-   * @return string Markdown formatted output
-   */
-  function parseString($html) {
-    /** TODO: custom markdown-extra options, e.g. titles & classes **/
-    # <sup id="fnref:..."><a href"#fn..." rel="footnote">...</a></sup>
-    # => <fnref target="..." />
-    $html = preg_replace('@<sup id="fnref:([^"]+)">\s*<a href="#fn:\1" rel="footnote">\s*\d+\s*</a>\s*</sup>@Us', '<fnref target="$1" />', $html);
-    # <div class="footnotes">
-    # <hr />
-    # <ol>
-    #
-    # <li id="fn:...">...</li>
-    # ...
-    #
-    # </ol>
-    # </div>
-    # =>
-    # <footnotes>
-    #   <fn name="...">...</fn>
-    #   ...
-    # </footnotes>
-    $html = preg_replace_callback('#<div class="footnotes">\s*<hr />\s*<ol>\s*(.+)\s*</ol>\s*</div>#Us', array(&$this, '_makeFootnotes'), $html);
-    return parent::parseString($html);
-  }
-  /**
-   * replace HTML representation of footnotes with something more easily parsable
-   *
-   * @note this is a callback to be used in parseString()
-   *
-   * @param array $matches
-   * @return string
-   */
-  function _makeFootnotes($matches) {
-    # <li id="fn:1">
-    #   ...
-    #   <a href="#fnref:block" rev="footnote">&#8617;</a></p>
-    # </li>
-    # => <fn name="1">...</fn>
-    # remove footnote link
-    $fns = preg_replace('@\s*(&#160;\s*)?<a href="#fnref:[^"]+" rev="footnote"[^>]*>&#8617;</a>\s*@s', '', $matches[1]);
-    # remove empty paragraph
-    $fns = preg_replace('@<p>\s*</p>@s', '', $fns);
-    # <li id="fn:1">...</li> -> <footnote nr="1">...</footnote>
-    $fns = str_replace('<li id="fn:', '<fn name="', $fns);
-
-    $fns = '<footnotes>'.$fns.'</footnotes>';
-    return preg_replace('#</li>\s*(?=(?:<fn|</footnotes>))#s', '</fn>$1', $fns);
-  }
-}
\ No newline at end of file
diff --git a/include/markdownify/parsehtml/parsehtml.php b/include/markdownify/parsehtml/parsehtml.php
deleted file mode 100644
index 1a8ecacda8..0000000000
--- a/include/markdownify/parsehtml/parsehtml.php
+++ /dev/null
@@ -1,618 +0,0 @@
-<?php
-/**
- * parseHTML is a HTML parser which works with PHP 4 and above.
- * It tries to handle invalid HTML to some degree.
- *
- * @version 1.0 beta
- * @author Milian Wolff (mail@milianw.de, http://milianw.de)
- * @license LGPL, see LICENSE_LGPL.txt and the summary below
- * @copyright (C) 2007  Milian Wolff
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- */
-class parseHTML {
-  /**
-   * tags which are always empty (<br /> etc.)
-   *
-   * @var array<string>
-   */
-  var $emptyTags = array(
-    'br',
-    'hr',
-    'input',
-    'img',
-    'area',
-    'link',
-    'meta',
-    'param',
-  );
-  /**
-   * tags with preformatted text
-   * whitespaces wont be touched in them
-   *
-   * @var array<string>
-   */
-  var $preformattedTags = array(
-    'script',
-    'style',
-    'pre',
-    'code',
-  );
-  /**
-   * supress HTML tags inside preformatted tags (see above)
-   *
-   * @var bool
-   */
-  var $noTagsInCode = false;
-  /**
-   * html to be parsed
-   *
-   * @var string
-   */
-  var $html = '';
-  /**
-   * node type:
-   *
-   * - tag (see isStartTag)
-   * - text (includes cdata)
-   * - comment
-   * - doctype
-   * - pi (processing instruction)
-   *
-   * @var string
-   */
-  var $nodeType = '';
-  /**
-   * current node content, i.e. either a
-   * simple string (text node), or something like
-   * <tag attrib="value"...>
-   *
-   * @var string
-   */
-  var $node = '';
-  /**
-   * wether current node is an opening tag (<a>) or not (</a>)
-   * set to NULL if current node is not a tag
-   * NOTE: empty tags (<br />) set this to true as well!
-   *
-   * @var bool | null
-   */
-  var $isStartTag = null;
-  /**
-   * wether current node is an empty tag (<br />) or not (<a></a>)
-   *
-   * @var bool | null
-   */
-  var $isEmptyTag = null;
-  /**
-   * tag name
-   *
-   * @var string | null
-   */
-  var $tagName = '';
-  /**
-   * attributes of current tag
-   *
-   * @var array (attribName=>value) | null
-   */
-  var $tagAttributes = null;
-  /**
-   * wether the current tag is a block element
-   *
-   * @var bool | null
-   */
-  var $isBlockElement = null;
-
-  /**
-   * keep whitespace
-   *
-   * @var int
-   */
-  var $keepWhitespace = 0;
-  /**
-   * list of open tags
-   * count this to get current depth
-   *
-   * @var array
-   */
-  var $openTags = array();
-  /**
-   * list of block elements
-   *
-   * @var array
-   * TODO: what shall we do with <del> and <ins> ?!
-   */
-  var $blockElements = array (
-    # tag name => <bool> is block
-    # block elements
-    'address' => true,
-    'blockquote' => true,
-    'center' => true,
-    'del' => true,
-    'dir' => true,
-    'div' => true,
-    'dl' => true,
-    'fieldset' => true,
-    'form' => true,
-    'h1' => true,
-    'h2' => true,
-    'h3' => true,
-    'h4' => true,
-    'h5' => true,
-    'h6' => true,
-    'hr' => true,
-    'ins' => true,
-    'isindex' => true,
-    'menu' => true,
-    'noframes' => true,
-    'noscript' => true,
-    'ol' => true,
-    'p' => true,
-    'pre' => true,
-    'table' => true,
-    'ul' => true,
-    # set table elements and list items to block as well
-    'thead' => true,
-    'tbody' => true,
-    'tfoot' => true,
-    'td' => true,
-    'tr' => true,
-    'th' => true,
-    'li' => true,
-    'dd' => true,
-    'dt' => true,
-    # header items and html / body as well
-    'html' => true,
-    'body' => true,
-    'head' => true,
-    'meta' => true,
-    'link' => true,
-    'style' => true,
-    'title' => true,
-    # unfancy media tags, when indented should be rendered as block
-    'map' => true,
-    'object' => true,
-    'param' => true,
-    'embed' => true,
-    'area' => true,
-    # inline elements
-    'a' => false,
-    'abbr' => false,
-    'acronym' => false,
-    'applet' => false,
-    'b' => false,
-    'basefont' => false,
-    'bdo' => false,
-    'big' => false,
-    'br' => false,
-    'button' => false,
-    'cite' => false,
-    'code' => false,
-    'del' => false,
-    'dfn' => false,
-    'em' => false,
-    'font' => false,
-    'i' => false,
-    'img' => false,
-    'ins' => false,
-    'input' => false,
-    'iframe' => false,
-    'kbd' => false,
-    'label' => false,
-    'q' => false,
-    'samp' => false,
-    'script' => false,
-    'select' => false,
-    'small' => false,
-    'span' => false,
-    'strong' => false,
-    'sub' => false,
-    'sup' => false,
-    'textarea' => false,
-    'tt' => false,
-    'var' => false,
-  );
-  /**
-   * get next node, set $this->html prior!
-   *
-   * @param void
-   * @return bool
-   */
-  function nextNode() {
-    if (empty($this->html)) {
-      # we are done with parsing the html string
-      return false;
-    }
-    static $skipWhitespace = true;
-    if ($this->isStartTag && !$this->isEmptyTag) {
-      array_push($this->openTags, $this->tagName);
-      if (in_array($this->tagName, $this->preformattedTags)) {
-        # dont truncate whitespaces for <code> or <pre> contents
-        $this->keepWhitespace++;
-      }
-    }
-
-    if ($this->html[0] == '<') {
-      $token = substr($this->html, 0, 9);
-      if (substr($token, 0, 2) == '<?') {
-        # xml prolog or other pi's
-        /** TODO **/
-        #trigger_error('this might need some work', E_USER_NOTICE);
-        $pos = strpos($this->html, '>');
-        $this->setNode('pi', $pos + 1);
-        return true;
-      }
-      if (substr($token, 0, 4) == '<!--') {
-        # comment
-        $pos = strpos($this->html, '-->');
-        if ($pos === false) {
-          # could not find a closing -->, use next gt instead
-          # this is firefox' behaviour
-          $pos = strpos($this->html, '>') + 1;
-        } else {
-          $pos += 3;
-        }
-        $this->setNode('comment', $pos);
-
-        $skipWhitespace = true;
-        return true;
-      }
-      if ($token == '<!DOCTYPE') {
-        # doctype
-        $this->setNode('doctype', strpos($this->html, '>')+1);
-
-        $skipWhitespace = true;
-        return true;
-      }
-      if ($token == '<![CDATA[') {
-        # cdata, use text node
-
-        # remove leading <![CDATA[
-        $this->html = substr($this->html, 9);
-
-        $this->setNode('text', strpos($this->html, ']]>')+3);
-
-        # remove trailing ]]> and trim
-        $this->node = substr($this->node, 0, -3);
-        $this->handleWhitespaces();
-
-        $skipWhitespace = true;
-        return true;
-      }
-      if ($this->parseTag()) {
-        # seems to be a tag
-        # handle whitespaces
-        if ($this->isBlockElement) {
-          $skipWhitespace = true;
-        } else {
-          $skipWhitespace = false;
-        }
-        return true;
-      }
-    }
-    if ($this->keepWhitespace) {
-      $skipWhitespace = false;
-    }
-    # when we get here it seems to be a text node
-    $pos = strpos($this->html, '<');
-    if ($pos === false) {
-      $pos = strlen($this->html);
-    }
-    $this->setNode('text', $pos);
-    $this->handleWhitespaces();
-    if ($skipWhitespace && $this->node == ' ') {
-      return $this->nextNode();
-    }
-    $skipWhitespace = false;
-    return true;
-  }
-  /**
-   * parse tag, set tag name and attributes, see if it's a closing tag and so forth...
-   *
-   * @param void
-   * @return bool
-   */
-  function parseTag() {
-    static $a_ord, $z_ord, $special_ords;
-    if (!isset($a_ord)) {
-      $a_ord = ord('a');
-      $z_ord = ord('z');
-      $special_ords = array(
-        ord(':'), // for xml:lang
-        ord('-'), // for http-equiv
-      );
-    }
-
-    $tagName = '';
-
-    $pos = 1;
-    $isStartTag = $this->html[$pos] != '/';
-    if (!$isStartTag) {
-      $pos++;
-    }
-    # get tagName
-    while (isset($this->html[$pos])) {
-      $pos_ord = ord(strtolower($this->html[$pos]));
-      if (($pos_ord >= $a_ord && $pos_ord <= $z_ord) || (!empty($tagName) && is_numeric($this->html[$pos]))) {
-        $tagName .= $this->html[$pos];
-        $pos++;
-      } else {
-        $pos--;
-        break;
-      }
-    }
-
-    $tagName = strtolower($tagName);
-    if (empty($tagName) || !isset($this->blockElements[$tagName])) {
-      # something went wrong => invalid tag
-      $this->invalidTag();
-      return false;
-    }
-    if ($this->noTagsInCode && end($this->openTags) == 'code' && !($tagName == 'code' && !$isStartTag)) {
-      # we supress all HTML tags inside code tags
-      $this->invalidTag();
-      return false;
-    }
-
-    # get tag attributes
-    /** TODO: in html 4 attributes do not need to be quoted **/
-    $isEmptyTag = false;
-    $attributes = array();
-    $currAttrib = '';
-    while (isset($this->html[$pos+1])) {
-      $pos++;
-      # close tag
-      if ($this->html[$pos] == '>' || $this->html[$pos].$this->html[$pos+1] == '/>') {
-        if ($this->html[$pos] == '/') {
-          $isEmptyTag = true;
-          $pos++;
-        }
-        break;
-      }
-
-      $pos_ord = ord(strtolower($this->html[$pos]));
-      if ( ($pos_ord >= $a_ord && $pos_ord <= $z_ord) || in_array($pos_ord, $special_ords)) {
-        # attribute name
-        $currAttrib .= $this->html[$pos];
-      } elseif (in_array($this->html[$pos], array(' ', "\t", "\n"))) {
-        # drop whitespace
-      } elseif (in_array($this->html[$pos].$this->html[$pos+1], array('="', "='"))) {
-        # get attribute value
-        $pos++;
-        $await = $this->html[$pos]; # single or double quote
-        $pos++;
-        $value = '';
-        while (isset($this->html[$pos]) && $this->html[$pos] != $await) {
-          $value .= $this->html[$pos];
-          $pos++;
-        }
-        $attributes[$currAttrib] = $value;
-        $currAttrib = '';
-      } else {
-        $this->invalidTag();
-        return false;
-      }
-    }
-    if ($this->html[$pos] != '>') {
-      $this->invalidTag();
-      return false;
-    }
-
-    if (!empty($currAttrib)) {
-      # html 4 allows something like <option selected> instead of <option selected="selected">
-      $attributes[$currAttrib] = $currAttrib;
-    }
-    if (!$isStartTag) {
-      if (!empty($attributes) || $tagName != end($this->openTags)) {
-        # end tags must not contain any attributes
-        # or maybe we did not expect a different tag to be closed
-        $this->invalidTag();
-        return false;
-      }
-      array_pop($this->openTags);
-      if (in_array($tagName, $this->preformattedTags)) {
-        $this->keepWhitespace--;
-      }
-    }
-    $pos++;
-    $this->node = substr($this->html, 0, $pos);
-    $this->html = substr($this->html, $pos);
-    $this->tagName = $tagName;
-    $this->tagAttributes = $attributes;
-    $this->isStartTag = $isStartTag;
-    $this->isEmptyTag = $isEmptyTag || in_array($tagName, $this->emptyTags);
-    if ($this->isEmptyTag) {
-      # might be not well formed
-      $this->node = preg_replace('# */? *>$#', ' />', $this->node);
-    }
-    $this->nodeType = 'tag';
-    $this->isBlockElement = $this->blockElements[$tagName];
-    return true;
-  }
-  /**
-   * handle invalid tags
-   *
-   * @param void
-   * @return void
-   */
-  function invalidTag() {
-    $this->html = substr_replace($this->html, '&lt;', 0, 1);
-  }
-  /**
-   * update all vars and make $this->html shorter
-   *
-   * @param string $type see description for $this->nodeType
-   * @param int $pos to which position shall we cut?
-   * @return void
-   */
-  function setNode($type, $pos) {
-    if ($this->nodeType == 'tag') {
-      # set tag specific vars to null
-      # $type == tag should not be called here
-      # see this::parseTag() for more
-      $this->tagName = null;
-      $this->tagAttributes = null;
-      $this->isStartTag = null;
-      $this->isEmptyTag = null;
-      $this->isBlockElement = null;
-
-    }
-    $this->nodeType = $type;
-    $this->node = substr($this->html, 0, $pos);
-    $this->html = substr($this->html, $pos);
-  }
-  /**
-   * check if $this->html begins with $str
-   *
-   * @param string $str
-   * @return bool
-   */
-  function match($str) {
-    return substr($this->html, 0, strlen($str)) == $str;
-  }
-  /**
-   * truncate whitespaces
-   *
-   * @param void
-   * @return void
-   */
-  function handleWhitespaces() {
-    if ($this->keepWhitespace) {
-      # <pre> or <code> before...
-      return;
-    }
-    # truncate multiple whitespaces to a single one
-    $this->node = preg_replace('#\s+#s', ' ', $this->node);
-  }
-  /**
-   * normalize self::node
-   *
-   * @param void
-   * @return void
-   */
-  function normalizeNode() {
-    $this->node = '<';
-    if (!$this->isStartTag) {
-      $this->node .= '/'.$this->tagName.'>';
-      return;
-    }
-    $this->node .= $this->tagName;
-    foreach ($this->tagAttributes as $name => $value) {
-      $this->node .= ' '.$name.'="'.str_replace('"', '&quot;', $value).'"';
-    }
-    if ($this->isEmptyTag) {
-      $this->node .= ' /';
-    }
-    $this->node .= '>';
-  }
-}
-
-/**
- * indent a HTML string properly
- *
- * @param string $html
- * @param string $indent optional
- * @return string
- */
-function indentHTML($html, $indent = "  ", $noTagsInCode = false) {
-  $parser = new parseHTML;
-  $parser->noTagsInCode = $noTagsInCode;
-  $parser->html = $html;
-  $html = '';
-  $last = true; # last tag was block elem
-  $indent_a = array();
-  while($parser->nextNode()) {
-    if ($parser->nodeType == 'tag') {
-      $parser->normalizeNode();
-    }
-    if ($parser->nodeType == 'tag' && $parser->isBlockElement) {
-      $isPreOrCode = in_array($parser->tagName, array('code', 'pre'));
-      if (!$parser->keepWhitespace && !$last && !$isPreOrCode) {
-        $html = rtrim($html)."\n";
-      }
-      if ($parser->isStartTag) {
-        $html .= implode($indent_a);
-        if (!$parser->isEmptyTag) {
-          array_push($indent_a, $indent);
-        }
-      } else {
-        array_pop($indent_a);
-        if (!$isPreOrCode) {
-          $html .= implode($indent_a);
-        }
-      }
-      $html .= $parser->node;
-      if (!$parser->keepWhitespace && !($isPreOrCode && $parser->isStartTag)) {
-        $html .= "\n";
-      }
-      $last = true;
-    } else {
-      if ($parser->nodeType == 'tag' && $parser->tagName == 'br') {
-        $html .= $parser->node."\n";
-        $last = true;
-        continue;
-      } elseif ($last && !$parser->keepWhitespace) {
-        $html .= implode($indent_a);
-        $parser->node = ltrim($parser->node);
-      }
-      $html .= $parser->node;
-
-      if (in_array($parser->nodeType, array('comment', 'pi', 'doctype'))) {
-        $html .= "\n";
-      } else {
-        $last = false;
-      }
-    }
-  }
-  return $html;
-}
-/*
-# testcase / example
-error_reporting(E_ALL);
-
-$html = '<p>Simple block on one line:</p>
-
-<div>foo</div>
-
-<p>And nested without indentation:</p>
-
-<div>
-<div>
-<div>
-foo
-</div>
-<div style=">"/>
-</div>
-<div>bar</div>
-</div>
-
-<p>And with attributes:</p>
-
-<div>
-    <div id="foo">
-    </div>
-</div>
-
-<p>This was broken in 1.0.2b7:</p>
-
-<div class="inlinepage">
-<div class="toggleableend">
-foo
-</div>
-</div>';
-#$html = '<a href="asdfasdf"       title=\'asdf\' foo="bar">asdf</a>';
-echo indentHTML($html);
-die();
-*/

From 59fa1c94539fd7b1cd75b148accb7a52e663f572 Mon Sep 17 00:00:00 2001
From: Michael Vogel <icarus@dabo.de>
Date: Tue, 24 Feb 2015 11:26:52 +0100
Subject: [PATCH 12/13] New version of the library for the detection of
 mobiles.

---
 library/Mobile_Detect/.gitignore              |   11 +
 library/Mobile_Detect/.gitmodules             |    3 +
 library/Mobile_Detect/.php_cs                 |   24 +
 library/Mobile_Detect/.travis.yml             |   17 +
 library/Mobile_Detect/LICENSE.txt             |   48 +
 library/Mobile_Detect/Mobile_Detect.json      |    1 +
 library/Mobile_Detect/Mobile_Detect.php       | 1562 ++++++++++++++---
 library/Mobile_Detect/README.md               |  219 +++
 library/Mobile_Detect/composer.json           |   30 +
 .../namespaced/Detection/MobileDetect.php     |   22 +
 10 files changed, 1716 insertions(+), 221 deletions(-)
 create mode 100644 library/Mobile_Detect/.gitignore
 create mode 100644 library/Mobile_Detect/.gitmodules
 create mode 100644 library/Mobile_Detect/.php_cs
 create mode 100644 library/Mobile_Detect/.travis.yml
 create mode 100644 library/Mobile_Detect/LICENSE.txt
 create mode 100644 library/Mobile_Detect/Mobile_Detect.json
 create mode 100644 library/Mobile_Detect/README.md
 create mode 100644 library/Mobile_Detect/composer.json
 create mode 100644 library/Mobile_Detect/namespaced/Detection/MobileDetect.php

diff --git a/library/Mobile_Detect/.gitignore b/library/Mobile_Detect/.gitignore
new file mode 100644
index 0000000000..48b35e7145
--- /dev/null
+++ b/library/Mobile_Detect/.gitignore
@@ -0,0 +1,11 @@
+vendor/
+nbproject/
+/*.buildpath
+/*.project
+/.settings
+/error.log
+/export/nicejson
+.idea/
+*.iml
+/coverage
+/phpunit.phar
diff --git a/library/Mobile_Detect/.gitmodules b/library/Mobile_Detect/.gitmodules
new file mode 100644
index 0000000000..306e55ae54
--- /dev/null
+++ b/library/Mobile_Detect/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "export/nicejson"]
+	path = export/nicejson
+	url = https://github.com/GerHobbelt/nicejson-php.git
diff --git a/library/Mobile_Detect/.php_cs b/library/Mobile_Detect/.php_cs
new file mode 100644
index 0000000000..336ef0c87d
--- /dev/null
+++ b/library/Mobile_Detect/.php_cs
@@ -0,0 +1,24 @@
+<?php
+
+use Symfony\CS\FixerInterface;
+
+$finder = Symfony\CS\Finder\DefaultFinder::create()
+    ->notName('LICENSE')
+    ->notName('README.md')
+    ->notName('.php_cs')
+    ->notName('composer.*')
+    ->notName('phpunit.xml*')
+    ->notName('*.phar')
+    ->exclude('vendor')
+    ->exclude('examples')
+    ->exclude('Symfony/CS/Tests/Fixer')
+    ->notName('ElseifFixer.php')
+    ->exclude('data')
+    ->in(__DIR__)
+;
+
+return Symfony\CS\Config\Config::create()
+    ->finder($finder)
+;
+
+
diff --git a/library/Mobile_Detect/.travis.yml b/library/Mobile_Detect/.travis.yml
new file mode 100644
index 0000000000..29af5249f0
--- /dev/null
+++ b/library/Mobile_Detect/.travis.yml
@@ -0,0 +1,17 @@
+language: php
+php:
+  - "5.2"
+  - "5.3"
+  - "5.4"
+  - "5.5"
+  - "5.6"
+
+branches:
+  only:
+    - devel
+
+script:
+  - phpunit -v -c tests/phpunit.xml
+
+notifications:
+  email: false
diff --git a/library/Mobile_Detect/LICENSE.txt b/library/Mobile_Detect/LICENSE.txt
new file mode 100644
index 0000000000..101abf8be5
--- /dev/null
+++ b/library/Mobile_Detect/LICENSE.txt
@@ -0,0 +1,48 @@
+MIT License
+
+Copyright (c) <2011-2014> <Serban Ghita> <serbanghita@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Developer’s Certificate of Origin 1.1
+
+By making a contribution to this project, I certify that:
+
+(a) The contribution was created in whole or in part by me and I
+    have the right to submit it under the open source license
+    indicated in the file; or
+
+(b) The contribution is based upon previous work that, to the best
+    of my knowledge, is covered under an appropriate open source
+    license and I have the right under that license to submit that
+    work with modifications, whether created in whole or in part
+    by me, under the same open source license (unless I am
+    permitted to submit under a different license), as indicated
+    in the file; or
+
+(c) The contribution was provided directly to me by some other
+    person who certified (a), (b) or (c) and I have not modified
+    it.
+
+(d) I understand and agree that this project and the contribution
+    are public and that a record of the contribution (including all
+    personal information I submit with it, including my sign-off) is
+    maintained indefinitely and may be redistributed consistent with
+    this project or the open source license(s) involved.
diff --git a/library/Mobile_Detect/Mobile_Detect.json b/library/Mobile_Detect/Mobile_Detect.json
new file mode 100644
index 0000000000..0ba0163198
--- /dev/null
+++ b/library/Mobile_Detect/Mobile_Detect.json
@@ -0,0 +1 @@
+{"version":"2.8.11","headerMatch":{"HTTP_ACCEPT":{"matches":["application\/x-obml2d","application\/vnd.rim.html","text\/vnd.wap.wml","application\/vnd.wap.xhtml+xml"]},"HTTP_X_WAP_PROFILE":null,"HTTP_X_WAP_CLIENTID":null,"HTTP_WAP_CONNECTION":null,"HTTP_PROFILE":null,"HTTP_X_OPERAMINI_PHONE_UA":null,"HTTP_X_NOKIA_GATEWAY_ID":null,"HTTP_X_ORANGE_ID":null,"HTTP_X_VODAFONE_3GPDPCONTEXT":null,"HTTP_X_HUAWEI_USERID":null,"HTTP_UA_OS":null,"HTTP_X_MOBILE_GATEWAY":null,"HTTP_X_ATT_DEVICEID":null,"HTTP_UA_CPU":{"matches":["ARM"]}},"uaHttpHeaders":["HTTP_USER_AGENT","HTTP_X_OPERAMINI_PHONE_UA","HTTP_X_DEVICE_USER_AGENT","HTTP_X_ORIGINAL_USER_AGENT","HTTP_X_SKYFIRE_PHONE","HTTP_X_BOLT_PHONE_UA","HTTP_DEVICE_STOCK_UA","HTTP_X_UCBROWSER_DEVICE_UA"],"uaMatch":{"phones":{"iPhone":"\\biPhone\\b|\\biPod\\b","BlackBerry":"BlackBerry|\\bBB10\\b|rim[0-9]+","HTC":"HTC|HTC.*(Sensation|Evo|Vision|Explorer|6800|8100|8900|A7272|S510e|C110e|Legend|Desire|T8282)|APX515CKT|Qtek9090|APA9292KT|HD_mini|Sensation.*Z710e|PG86100|Z715e|Desire.*(A8181|HD)|ADR6200|ADR6400L|ADR6425|001HT|Inspire 4G|Android.*\\bEVO\\b|T-Mobile G1|Z520m","Nexus":"Nexus One|Nexus S|Galaxy.*Nexus|Android.*Nexus.*Mobile|Nexus 4|Nexus 5|Nexus 6","Dell":"Dell.*Streak|Dell.*Aero|Dell.*Venue|DELL.*Venue Pro|Dell Flash|Dell Smoke|Dell Mini 3iX|XCD28|XCD35|\\b001DL\\b|\\b101DL\\b|\\bGS01\\b","Motorola":"Motorola|DROIDX|DROID 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U8GT","CobyTablet":"MID1042|MID1045|MID1125|MID1126|MID7012|MID7014|MID7015|MID7034|MID7035|MID7036|MID7042|MID7048|MID7127|MID8042|MID8048|MID8127|MID9042|MID9740|MID9742|MID7022|MID7010","MIDTablet":"M9701|M9000|M9100|M806|M1052|M806|T703|MID701|MID713|MID710|MID727|MID760|MID830|MID728|MID933|MID125|MID810|MID732|MID120|MID930|MID800|MID731|MID900|MID100|MID820|MID735|MID980|MID130|MID833|MID737|MID960|MID135|MID860|MID736|MID140|MID930|MID835|MID733","MSITablet":"MSI \\b(Primo 73K|Primo 73L|Primo 81L|Primo 77|Primo 93|Primo 75|Primo 76|Primo 73|Primo 81|Primo 91|Primo 90|Enjoy 71|Enjoy 7|Enjoy 10)\\b","SMiTTablet":"Android.*(\\bMID\\b|MID-560|MTV-T1200|MTV-PND531|MTV-P1101|MTV-PND530)","RockChipTablet":"Android.*(RK2818|RK2808A|RK2918|RK3066)|RK2738|RK2808A","FlyTablet":"IQ310|Fly Vision","bqTablet":"bq.*(Elcano|Curie|Edison|Maxwell|Kepler|Pascal|Tesla|Hypatia|Platon|Newton|Livingstone|Cervantes|Avant)|Maxwell.*Lite|Maxwell.*Plus","HuaweiTablet":"MediaPad|MediaPad 7 Youth|IDEOS 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\\b(E3A|T3X|T5C|T5B|T3E|T3C|T3B|T1J|T1F|T2A|T1H|T1i|E1C|T1-E|T5-A|T4|E1-B|T2Ci|T1-B|T1-D|O1-A|E1-A|T1-A|T3A|T4i)\\b ","DanyTechTablet":"Genius Tab G3|Genius Tab S2|Genius Tab Q3|Genius Tab G4|Genius Tab Q4|Genius Tab G-II|Genius TAB GII|Genius TAB GIII|Genius Tab S1","GalapadTablet":"Android.*\\bG1\\b","MicromaxTablet":"Funbook|Micromax.*\\b(P250|P560|P360|P362|P600|P300|P350|P500|P275)\\b","KarbonnTablet":"Android.*\\b(A39|A37|A34|ST8|ST10|ST7|Smart Tab3|Smart Tab2)\\b","AllFineTablet":"Fine7 Genius|Fine7 Shine|Fine7 Air|Fine8 Style|Fine9 More|Fine10 Joy|Fine11 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Tablet U1|ME Tablet U2|ME Tablet G1|ME Tablet X1|ME Tablet Y2|ME Tablet Sync","DPSTablet":"DPS Dream 9|DPS Dual 7","VistureTablet":"V97 HD|i75 3G|Visture V4( HD)?|Visture V5( HD)?|Visture V10","CrestaTablet":"CTP(-)?810|CTP(-)?818|CTP(-)?828|CTP(-)?838|CTP(-)?888|CTP(-)?978|CTP(-)?980|CTP(-)?987|CTP(-)?988|CTP(-)?989","MediatekTablet":"\\bMT8125|MT8389|MT8135|MT8377\\b","ConcordeTablet":"Concorde([ ]+)?Tab|ConCorde ReadMan","GoCleverTablet":"GOCLEVER TAB|A7GOCLEVER|M1042|M7841|M742|R1042BK|R1041|TAB A975|TAB A7842|TAB A741|TAB A741L|TAB M723G|TAB M721|TAB A1021|TAB I921|TAB R721|TAB I720|TAB T76|TAB R70|TAB R76.2|TAB R106|TAB R83.2|TAB M813G|TAB I721|GCTA722|TAB I70|TAB I71|TAB S73|TAB R73|TAB R74|TAB R93|TAB R75|TAB R76.1|TAB A73|TAB A93|TAB A93.2|TAB T72|TAB R83|TAB R974|TAB R973|TAB A101|TAB A103|TAB A104|TAB A104.2|R105BK|M713G|A972BK|TAB A971|TAB R974.2|TAB R104|TAB R83.3|TAB A1042","ModecomTablet":"FreeTAB 9000|FreeTAB 7.4|FreeTAB 7004|FreeTAB 7800|FreeTAB 2096|FreeTAB 7.5|FreeTAB 1014|FreeTAB 1001 |FreeTAB 8001|FreeTAB 9706|FreeTAB 9702|FreeTAB 7003|FreeTAB 7002|FreeTAB 1002|FreeTAB 7801|FreeTAB 1331|FreeTAB 1004|FreeTAB 8002|FreeTAB 8014|FreeTAB 9704|FreeTAB 1003","VoninoTablet":"\\b(Argus[ _]?S|Diamond[ _]?79HD|Emerald[ _]?78E|Luna[ _]?70C|Onyx[ _]?S|Onyx[ _]?Z|Orin[ _]?HD|Orin[ _]?S|Otis[ _]?S|SpeedStar[ _]?S|Magnet[ _]?M9|Primus[ _]?94[ _]?3G|Primus[ _]?94HD|Primus[ _]?QS|Android.*\\bQ8\\b|Sirius[ _]?EVO[ _]?QS|Sirius[ _]?QS|Spirit[ _]?S)\\b","ECSTablet":"V07OT2|TM105A|S10OT1|TR10CS1","StorexTablet":"eZee[_']?(Tab|Go)[0-9]+|TabLC7|Looney Tunes Tab","VodafoneTablet":"SmartTab([ ]+)?[0-9]+|SmartTabII10|SmartTabII7","EssentielBTablet":"Smart[ ']?TAB[ ]+?[0-9]+|Family[ ']?TAB2","RossMoorTablet":"RM-790|RM-997|RMD-878G|RMD-974R|RMT-705A|RMT-701|RME-601|RMT-501|RMT-711","iMobileTablet":"i-mobile i-note","TolinoTablet":"tolino tab [0-9.]+|tolino shine","AudioSonicTablet":"\\bC-22Q|T7-QC|T-17B|T-17P\\b","AMPETablet":"Android.* A78 ","SkkTablet":"Android.* (SKYPAD|PHOENIX|CYCLOPS)","TecnoTablet":"TECNO P9","JXDTablet":"Android.*\\b(F3000|A3300|JXD5000|JXD3000|JXD2000|JXD300B|JXD300|S5800|S7800|S602b|S5110b|S7300|S5300|S602|S603|S5100|S5110|S601|S7100a|P3000F|P3000s|P101|P200s|P1000m|P200m|P9100|P1000s|S6600b|S908|P1000|P300|S18|S6600|S9100)\\b","iJoyTablet":"Tablet (Spirit 7|Essentia|Galatea|Fusion|Onix 7|Landa|Titan|Scooby|Deox|Stella|Themis|Argon|Unique 7|Sygnus|Hexen|Finity 7|Cream|Cream X2|Jade|Neon 7|Neron 7|Kandy|Scape|Saphyr 7|Rebel|Biox|Rebel|Rebel 8GB|Myst|Draco 7|Myst|Tab7-004|Myst|Tadeo Jones|Tablet Boing|Arrow|Draco Dual Cam|Aurix|Mint|Amity|Revolution|Finity 9|Neon 9|T9w|Amity 4GB Dual Cam|Stone 4GB|Stone 8GB|Andromeda|Silken|X2|Andromeda II|Halley|Flame|Saphyr 9,7|Touch 8|Planet|Triton|Unique 10|Hexen 10|Memphis 4GB|Memphis 8GB|Onix 10)","FX2Tablet":"FX2 PAD7|FX2 PAD10","XoroTablet":"KidsPAD 701|PAD[ ]?712|PAD[ ]?714|PAD[ ]?716|PAD[ ]?717|PAD[ ]?718|PAD[ ]?720|PAD[ ]?721|PAD[ ]?722|PAD[ ]?790|PAD[ ]?792|PAD[ ]?900|PAD[ ]?9715D|PAD[ ]?9716DR|PAD[ ]?9718DR|PAD[ ]?9719QR|PAD[ ]?9720QR|TelePAD1030|Telepad1032|TelePAD730|TelePAD731|TelePAD732|TelePAD735Q|TelePAD830|TelePAD9730|TelePAD795|MegaPAD 1331|MegaPAD 1851|MegaPAD 2151","ViewsonicTablet":"ViewPad 10pi|ViewPad 10e|ViewPad 10s|ViewPad E72|ViewPad7|ViewPad E100|ViewPad 7e|ViewSonic VB733|VB100a","OdysTablet":"LOOX|XENO10|ODYS[ -](Space|EVO|Xpress|NOON)|\\bXELIO\\b|Xelio10Pro|XELIO7PHONETAB|XELIO10EXTREME|XELIOPT2|NEO_QUAD10","CaptivaTablet":"CAPTIVA PAD","IconbitTablet":"NetTAB|NT-3702|NT-3702S|NT-3702S|NT-3603P|NT-3603P|NT-0704S|NT-0704S|NT-3805C|NT-3805C|NT-0806C|NT-0806C|NT-0909T|NT-0909T|NT-0907S|NT-0907S|NT-0902S|NT-0902S","TeclastTablet":"T98 4G|\\bP80\\b|\\bX90HD\\b|X98 Air|X98 Air 3G|\\bX89\\b|P80 3G|\\bX80h\\b|P98 Air|\\bX89HD\\b|P98 3G|\\bP90HD\\b|P89 3G|X98 3G|\\bP70h\\b|P79HD 3G|G18d 3G|\\bP79HD\\b|\\bP89s\\b|\\bA88\\b|\\bP10HD\\b|\\bP19HD\\b|G18 3G|\\bP78HD\\b|\\bA78\\b|\\bP75\\b|G17s 3G|G17h 3G|\\bP85t\\b|\\bP90\\b|\\bP11\\b|\\bP98t\\b|\\bP98HD\\b|\\bG18d\\b|\\bP85s\\b|\\bP11HD\\b|\\bP88s\\b|\\bA80HD\\b|\\bA80se\\b|\\bA10h\\b|\\bP89\\b|\\bP78s\\b|\\bG18\\b|\\bP85\\b|\\bA70h\\b|\\bA70\\b|\\bG17\\b|\\bP18\\b|\\bA80s\\b|\\bA11s\\b|\\bP88HD\\b|\\bA80h\\b|\\bP76s\\b|\\bP76h\\b|\\bP98\\b|\\bA10HD\\b|\\bP78\\b|\\bP88\\b|\\bA11\\b|\\bA10t\\b|\\bP76a\\b|\\bP76t\\b|\\bP76e\\b|\\bP85HD\\b|\\bP85a\\b|\\bP86\\b|\\bP75HD\\b|\\bP76v\\b|\\bA12\\b|\\bP75a\\b|\\bA15\\b|\\bP76Ti\\b|\\bP81HD\\b|\\bA10\\b|\\bT760VE\\b|\\bT720HD\\b|\\bP76\\b|\\bP73\\b|\\bP71\\b|\\bP72\\b|\\bT720SE\\b|\\bC520Ti\\b|\\bT760\\b|\\bT720VE\\b|T720-3GE|T720-WiFi","JaytechTablet":"TPC-PA762","BlaupunktTablet":"Endeavour 800NG|Endeavour 1010","DigmaTablet":"\\b(iDx10|iDx9|iDx8|iDx7|iDxD7|iDxD8|iDsQ8|iDsQ7|iDsQ8|iDsD10|iDnD7|3TS804H|iDsQ11|iDj7|iDs10)\\b","EvolioTablet":"ARIA_Mini_wifi|Aria[ _]Mini|Evolio X10|Evolio X7|Evolio X8|\\bEvotab\\b|\\bNeura\\b","LavaTablet":"QPAD E704|\\bIvoryS\\b|E-TAB IVORY","CelkonTablet":"CT695|CT888|CT[\\s]?910|CT7 Tab|CT9 Tab|CT3 Tab|CT2 Tab|CT1 Tab|C820|C720|\\bCT-1\\b","MiTablet":"\\bMI PAD\\b|\\bHM NOTE 1W\\b","NibiruTablet":"Nibiru M1|Nibiru Jupiter One","NexoTablet":"NEXO NOVA|NEXO 10|NEXO AVIO|NEXO FREE|NEXO GO|NEXO EVO|NEXO 3G|NEXO SMART|NEXO KIDDO|NEXO MOBI","UbislateTablet":"UbiSlate[\\s]?7C","PocketBookTablet":"Pocketbook","Hudl":"Hudl HT7S3","TelstraTablet":"T-Hub2","GenericTablet":"Android.*\\b97D\\b|Tablet(?!.*PC)|BNTV250A|MID-WCDMA|LogicPD Zoom2|\\bA7EB\\b|CatNova8|A1_07|CT704|CT1002|\\bM721\\b|rk30sdk|\\bEVOTAB\\b|M758A|ET904|ALUMIUM10|Smartfren Tab|Endeavour 1010|Tablet-PC-4|Tagi Tab|\\bM6pro\\b|CT1020W|arc 10HD|\\bJolla\\b"},"browsers":{"Chrome":"\\bCrMo\\b|CriOS|Android.*Chrome\/[.0-9]* (Mobile)?","Dolfin":"\\bDolfin\\b","Opera":"Opera.*Mini|Opera.*Mobi|Android.*Opera|Mobile.*OPR\/[0-9.]+|Coast\/[0-9.]+","Skyfire":"Skyfire","IE":"IEMobile|MSIEMobile","Firefox":"fennec|firefox.*maemo|(Mobile|Tablet).*Firefox|Firefox.*Mobile","Bolt":"bolt","TeaShark":"teashark","Blazer":"Blazer","Safari":"Version.*Mobile.*Safari|Safari.*Mobile|MobileSafari","Tizen":"Tizen","UCBrowser":"UC.*Browser|UCWEB","baiduboxapp":"baiduboxapp","baidubrowser":"baidubrowser","DiigoBrowser":"DiigoBrowser","Puffin":"Puffin","Mercury":"\\bMercury\\b","ObigoBrowser":"Obigo","NetFront":"NF-Browser","GenericBrowser":"NokiaBrowser|OviBrowser|OneBrowser|TwonkyBeamBrowser|SEMC.*Browser|FlyFlow|Minimo|NetFront|Novarra-Vision|MQQBrowser|MicroMessenger"},"os":{"AndroidOS":"Android","BlackBerryOS":"blackberry|\\bBB10\\b|rim tablet os","PalmOS":"PalmOS|avantgo|blazer|elaine|hiptop|palm|plucker|xiino","SymbianOS":"Symbian|SymbOS|Series60|Series40|SYB-[0-9]+|\\bS60\\b","WindowsMobileOS":"Windows CE.*(PPC|Smartphone|Mobile|[0-9]{3}x[0-9]{3})|Window Mobile|Windows Phone [0-9.]+|WCE;","WindowsPhoneOS":"Windows Phone 8.0|Windows Phone OS|XBLWP7|ZuneWP7|Windows NT 6.[23]; ARM;","iOS":"\\biPhone.*Mobile|\\biPod|\\biPad","MeeGoOS":"MeeGo","MaemoOS":"Maemo","JavaOS":"J2ME\/|\\bMIDP\\b|\\bCLDC\\b","webOS":"webOS|hpwOS","badaOS":"\\bBada\\b","BREWOS":"BREW"},"utilities":{"DesktopMode":"WPDesktop","TV":"SonyDTV|HbbTV","WebKit":"(webkit)[ \/]([\\w.]+)","Bot":"Googlebot|YandexBot|bingbot|ia_archiver|AhrefsBot|Ezooms|GSLFbot|WBSearchBot|Twitterbot|TweetmemeBot|Twikle|PaperLiBot|Wotbox|UnwindFetchor|facebookexternalhit","MobileBot":"Googlebot-Mobile|YahooSeeker\/M1A1-R2D2","Console":"\\b(Nintendo|Nintendo WiiU|Nintendo 3DS|PLAYSTATION|Xbox)\\b","Watch":"SM-V700"}}}
\ No newline at end of file
diff --git a/library/Mobile_Detect/Mobile_Detect.php b/library/Mobile_Detect/Mobile_Detect.php
index 4b8c9fecb1..3a82c29690 100644
--- a/library/Mobile_Detect/Mobile_Detect.php
+++ b/library/Mobile_Detect/Mobile_Detect.php
@@ -1,221 +1,1341 @@
-<?php
-/**
- * Mobile Detect
- * $Id: Mobile_Detect.php 49 2012-06-06 20:46:30Z serbanghita@gmail.com $
- * 
- * @usage      require_once 'Mobile_Detect.php';
- *             $detect = new Mobile_Detect();
- *             $detect->isMobile() or $detect->isTablet()
- * 
- *             For more specific usage see the documentation navigate to:
- *             http://code.google.com/p/php-mobile-detect/wiki/Mobile_Detect
- * 
- * @license    http://www.opensource.org/licenses/mit-license.php The MIT License
- */
-
-class Mobile_Detect {
-    
-    protected $detectionRules;
-    protected $userAgent = null;
-    protected $accept = null;
-    // Assume the visitor has a desktop environment.
-    protected $isMobile = false;
-    protected $isTablet = false;
-    protected $phoneDeviceName = null;
-    protected $tabletDevicename = null;
-    protected $operatingSystemName = null;
-    protected $userAgentName = null;
-    // List of mobile devices (phones)
-    protected $phoneDevices = array(     
-            'iPhone'        => '(iPhone.*Mobile|iPod|iTunes)',
-            'BlackBerry'    => 'BlackBerry|rim[0-9]+',
-            'HTC'           => 'HTC|HTC.*(6800|8100|8900|A7272|S510e|C110e|Legend|Desire|T8282)|APX515CKT|Qtek9090|APA9292KT',
-            'Nexus'         => 'Nexus One|Nexus S|Galaxy.*Nexus|Android.*Nexus',
-            'Dell'          => 'Dell.*Streak|Dell.*Aero|Dell.*Venue|DELL.*Venue Pro|Dell Flash|Dell Smoke|Dell Mini 3iX|XCD28|XCD35',
-            'Motorola'      => '\bDroid\b.*Build|DROIDX|HRI39|MOT\-|A1260|A1680|A555|A853|A855|A953|A955|A956|Motorola.*ELECTRIFY|Motorola.*i1|i867|i940|MB200|MB300|MB501|MB502|MB508|MB511|MB520|MB525|MB526|MB611|MB612|MB632|MB810|MB855|MB860|MB861|MB865|MB870|ME501|ME502|ME511|ME525|ME600|ME632|ME722|ME811|ME860|ME863|ME865|MT620|MT710|MT716|MT720|MT810|MT870|MT917|Motorola.*TITANIUM|WX435|WX445|XT300|XT301|XT311|XT316|XT317|XT319|XT320|XT390|XT502|XT530|XT531|XT532|XT535|XT603|XT610|XT611|XT615|XT681|XT701|XT702|XT711|XT720|XT800|XT806|XT860|XT862|XT875|XT882|XT883|XT894|XT909|XT910|XT912|XT928',
-            'Samsung'       => 'Samsung|BGT-S5230|GT-B2100|GT-B2700|GT-B2710|GT-B3210|GT-B3310|GT-B3410|GT-B3730|GT-B3740|GT-B5510|GT-B5512|GT-B5722|GT-B6520|GT-B7300|GT-B7320|GT-B7330|GT-B7350|GT-B7510|GT-B7722|GT-B7800|GT-C3010|GT-C3011|GT-C3060|GT-C3200|GT-C3212|GT-C3212I|GT-C3222|GT-C3300|GT-C3300K|GT-C3303|GT-C3303K|GT-C3310|GT-C3322|GT-C3330|GT-C3350|GT-C3500|GT-C3510|GT-C3530|GT-C3630|GT-C3780|GT-C5010|GT-C5212|GT-C6620|GT-C6625|GT-C6712|GT-E1050|GT-E1070|GT-E1075|GT-E1080|GT-E1081|GT-E1085|GT-E1087|GT-E1100|GT-E1107|GT-E1110|GT-E1120|GT-E1125|GT-E1130|GT-E1160|GT-E1170|GT-E1175|GT-E1180|GT-E1182|GT-E1200|GT-E1210|GT-E1225|GT-E1230|GT-E1390|GT-E2100|GT-E2120|GT-E2121|GT-E2152|GT-E2220|GT-E2222|GT-E2230|GT-E2232|GT-E2250|GT-E2370|GT-E2550|GT-E2652|GT-E3210|GT-E3213|GT-I5500|GT-I5503|GT-I5700|GT-I5800|GT-I5801|GT-I6410|GT-I6420|GT-I7110|GT-I7410|GT-I7500|GT-I8000|GT-I8150|GT-I8160|GT-I8320|GT-I8330|GT-I8350|GT-I8530|GT-I8700|GT-I8703|GT-I8910|GT-I9000|GT-I9001|GT-I9003|GT-I9010|GT-I9020|GT-I9023|GT-I9070|GT-I9100|GT-I9103|GT-I9220|GT-I9250|GT-I9300|GT-I9300 |GT-M3510|GT-M5650|GT-M7500|GT-M7600|GT-M7603|GT-M8800|GT-M8910|GT-N7000|GT-P6810|GT-P7100|GT-S3110|GT-S3310|GT-S3350|GT-S3353|GT-S3370|GT-S3650|GT-S3653|GT-S3770|GT-S3850|GT-S5210|GT-S5220|GT-S5229|GT-S5230|GT-S5233|GT-S5250|GT-S5253|GT-S5260|GT-S5263|GT-S5270|GT-S5300|GT-S5330|GT-S5350|GT-S5360|GT-S5363|GT-S5369|GT-S5380|GT-S5380D|GT-S5560|GT-S5570|GT-S5600|GT-S5603|GT-S5610|GT-S5620|GT-S5660|GT-S5670|GT-S5690|GT-S5750|GT-S5780|GT-S5830|GT-S5839|GT-S6102|GT-S6500|GT-S7070|GT-S7200|GT-S7220|GT-S7230|GT-S7233|GT-S7250|GT-S7500|GT-S7530|GT-S7550|GT-S8000|GT-S8003|GT-S8500|GT-S8530|GT-S8600|SCH-A310|SCH-A530|SCH-A570|SCH-A610|SCH-A630|SCH-A650|SCH-A790|SCH-A795|SCH-A850|SCH-A870|SCH-A890|SCH-A930|SCH-A950|SCH-A970|SCH-A990|SCH-I100|SCH-I110|SCH-I400|SCH-I405|SCH-I500|SCH-I510|SCH-I515|SCH-I600|SCH-I730|SCH-I760|SCH-I770|SCH-I830|SCH-I910|SCH-I920|SCH-LC11|SCH-N150|SCH-N300|SCH-R100|SCH-R300|SCH-R351|SCH-R400|SCH-R410|SCH-T300|SCH-U310|SCH-U320|SCH-U350|SCH-U360|SCH-U365|SCH-U370|SCH-U380|SCH-U410|SCH-U430|SCH-U450|SCH-U460|SCH-U470|SCH-U490|SCH-U540|SCH-U550|SCH-U620|SCH-U640|SCH-U650|SCH-U660|SCH-U700|SCH-U740|SCH-U750|SCH-U810|SCH-U820|SCH-U900|SCH-U940|SCH-U960|SCS-26UC|SGH-A107|SGH-A117|SGH-A127|SGH-A137|SGH-A157|SGH-A167|SGH-A177|SGH-A187|SGH-A197|SGH-A227|SGH-A237|SGH-A257|SGH-A437|SGH-A517|SGH-A597|SGH-A637|SGH-A657|SGH-A667|SGH-A687|SGH-A697|SGH-A707|SGH-A717|SGH-A727|SGH-A737|SGH-A747|SGH-A767|SGH-A777|SGH-A797|SGH-A817|SGH-A827|SGH-A837|SGH-A847|SGH-A867|SGH-A877|SGH-A887|SGH-A897|SGH-A927|SGH-B100|SGH-B130|SGH-B200|SGH-B220|SGH-C100|SGH-C110|SGH-C120|SGH-C130|SGH-C140|SGH-C160|SGH-C170|SGH-C180|SGH-C200|SGH-C207|SGH-C210|SGH-C225|SGH-C230|SGH-C417|SGH-C450|SGH-D307|SGH-D347|SGH-D357|SGH-D407|SGH-D415|SGH-D780|SGH-D807|SGH-D980|SGH-E105|SGH-E200|SGH-E315|SGH-E316|SGH-E317|SGH-E335|SGH-E590|SGH-E635|SGH-E715|SGH-E890|SGH-F300|SGH-F480|SGH-I200|SGH-I300|SGH-I320|SGH-I550|SGH-I577|SGH-I600|SGH-I607|SGH-I617|SGH-I627|SGH-I637|SGH-I677|SGH-I700|SGH-I717|SGH-I727|SGH-I777|SGH-I780|SGH-I827|SGH-I847|SGH-I857|SGH-I896|SGH-I897|SGH-I900|SGH-I907|SGH-I917|SGH-I927|SGH-I937|SGH-I997|SGH-J150|SGH-J200|SGH-L170|SGH-L700|SGH-M110|SGH-M150|SGH-M200|SGH-N105|SGH-N500|SGH-N600|SGH-N620|SGH-N625|SGH-N700|SGH-N710|SGH-P107|SGH-P207|SGH-P300|SGH-P310|SGH-P520|SGH-P735|SGH-P777|SGH-Q105|SGH-R210|SGH-R220|SGH-R225|SGH-S105|SGH-S307|SGH-T109|SGH-T119|SGH-T139|SGH-T209|SGH-T219|SGH-T229|SGH-T239|SGH-T249|SGH-T259|SGH-T309|SGH-T319|SGH-T329|SGH-T339|SGH-T349|SGH-T359|SGH-T369|SGH-T379|SGH-T409|SGH-T429|SGH-T439|SGH-T459|SGH-T469|SGH-T479|SGH-T499|SGH-T509|SGH-T519|SGH-T539|SGH-T559|SGH-T589|SGH-T609|SGH-T619|SGH-T629|SGH-T639|SGH-T659|SGH-T669|SGH-T679|SGH-T709|SGH-T719|SGH-T729|SGH-T739|SGH-T746|SGH-T749|SGH-T759|SGH-T769|SGH-T809|SGH-T819|SGH-T839|SGH-T919|SGH-T929|SGH-T939|SGH-T959|SGH-T989|SGH-U100|SGH-U200|SGH-U800|SGH-V205|SGH-V206|SGH-X100|SGH-X105|SGH-X120|SGH-X140|SGH-X426|SGH-X427|SGH-X475|SGH-X495|SGH-X497|SGH-X507|SGH-X600|SGH-X610|SGH-X620|SGH-X630|SGH-X700|SGH-X820|SGH-X890|SGH-Z130|SGH-Z150|SGH-Z170|SGH-ZX10|SGH-ZX20|SHW-M110|SPH-A120|SPH-A400|SPH-A420|SPH-A460|SPH-A500|SPH-A560|SPH-A600|SPH-A620|SPH-A660|SPH-A700|SPH-A740|SPH-A760|SPH-A790|SPH-A800|SPH-A820|SPH-A840|SPH-A880|SPH-A900|SPH-A940|SPH-A960|SPH-D600|SPH-D700|SPH-D710|SPH-D720|SPH-I300|SPH-I325|SPH-I330|SPH-I350|SPH-I500|SPH-I600|SPH-I700|SPH-L700|SPH-M100|SPH-M220|SPH-M240|SPH-M300|SPH-M305|SPH-M320|SPH-M330|SPH-M350|SPH-M360|SPH-M370|SPH-M380|SPH-M510|SPH-M540|SPH-M550|SPH-M560|SPH-M570|SPH-M580|SPH-M610|SPH-M620|SPH-M630|SPH-M800|SPH-M810|SPH-M850|SPH-M900|SPH-M910|SPH-M920|SPH-M930|SPH-N100|SPH-N200|SPH-N240|SPH-N300|SPH-N400|SPH-Z400|SWC-E100',
-            'Sony'          => 'E10i|SonyEricsson|SonyEricssonLT15iv',
-            'Asus'          => 'Asus.*Galaxy',
-            'Palm'          => 'PalmSource|Palm', // avantgo|blazer|elaine|hiptop|plucker|xiino ; @todo - complete the regex.
-	        'Vertu'         => 'Vertu|Vertu.*Ltd|Vertu.*Ascent|Vertu.*Ayxta|Vertu.*Constellation(F|Quest)?|Vertu.*Monika|Vertu.*Signature', // Just for fun ;)
-            'GenericPhone'  => '(mmp|pocket|psp|symbian|Smartphone|smartfon|treo|up.browser|up.link|vodafone|wap|nokia|Series40|Series60|S60|SonyEricsson|N900|PPC;|MAUI.*WAP.*Browser|LG-P500)'
-    );
-    // List of tablet devices.
-    protected $tabletDevices = array(
-        'BlackBerryTablet'  => 'PlayBook|RIM Tablet',
-        'iPad'              => 'iPad|iPad.*Mobile', // @todo: check for mobile friendly emails topic.
-        'Kindle'            => 'Kindle|Silk.*Accelerated',
-        'SamsungTablet'     => 'SAMSUNG.*Tablet|Galaxy.*Tab|GT-P1000|GT-P1010|GT-P6210|GT-P6800|GT-P6810|GT-P7100|GT-P7300|GT-P7310|GT-P7500|GT-P7510|SCH-I800|SCH-I815|SCH-I905|SGH-I957|SGH-I987|SGH-T849|SGH-T859|SGH-T869|SPH-P100|GT-P1000|GT-P3100|GT-P3110|GT-P5100|GT-P5110|GT-P6200|GT-P7300|GT-P7320|GT-P7500|GT-P7510|GT-P7511',
-        'HTCtablet'         => 'HTC Flyer|HTC Jetstream|HTC-P715a|HTC EVO View 4G|PG41200',
-	    'MotorolaTablet'    => 'xoom|sholest|MZ615|MZ605|MZ505|MZ601|MZ602|MZ603|MZ604|MZ606|MZ607|MZ608|MZ609|MZ615|MZ616|MZ617',
-        'AsusTablet'        => 'Transformer|TF101',
-        'NookTablet'        => 'NookColor|nook browser|BNTV250A|LogicPD Zoom2',
-        'AcerTablet'        => 'Android.*\b(A100|A101|A200|A500|A501|A510|W500|W500P|W501|W501P)\b',
-	    'YarvikTablet'      => 'Android.*(TAB210|TAB211|TAB224|TAB250|TAB260|TAB264|TAB310|TAB360|TAB364|TAB410|TAB411|TAB420|TAB424|TAB450|TAB460|TAB461|TAB464|TAB465|TAB467|TAB468)',
-        'GenericTablet'     => 'Tablet(?!.*PC)|ViewPad7|LG-V909|MID7015|BNTV250A|LogicPD Zoom2|\bA7EB\b|CatNova8|A1_07|CT704|CT1002|\bM721\b',
-    );
-    // List of mobile Operating Systems.
-    protected $operatingSystems = array(
-        'AndroidOS'         => '(android.*mobile|android(?!.*mobile))',
-        'BlackBerryOS'      => '(blackberry|rim tablet os)',
-        'PalmOS'            => '(avantgo|blazer|elaine|hiptop|palm|plucker|xiino)',
-        'SymbianOS'         => 'Symbian|SymbOS|Series60|Series40|\bS60\b',
-        'WindowsMobileOS'   => 'IEMobile|Windows Phone|Windows CE.*(PPC|Smartphone)|MSIEMobile|Window Mobile|XBLWP7',
-        'iOS'               => '(iphone|ipod|ipad)',
-        'FlashLiteOS'       => '',
-        'JavaOS'            => '',
-        'NokiaOS'           => '',
-        'webOS'             => '',
-        'badaOS'            => '\bBada\b',
-        'BREWOS'            => '',
-    );
-    // List of mobile User Agents.
-    protected $userAgents = array(      
-      'Chrome'          => '\bCrMo\b|Chrome\/[.0-9]* Mobile',
-      'Dolfin'          => '\bDolfin\b',
-      'Opera'           => 'Opera.*Mini|Opera.*Mobi|Android.*Opera',
-      'Skyfire'         => 'skyfire',
-      'IE'              => 'IEMobile|MSIEMobile',
-      'Firefox'         => 'fennec|firefox.*maemo|(Mobile|Tablet).*Firefox|Firefox.*Mobile',
-      'Bolt'            => 'bolt',
-      'TeaShark'        => 'teashark',
-      'Blazer'          => 'Blazer',
-      'Safari'          => 'Mobile.*Safari|Safari.*Mobile',
-      'Midori'          => 'midori',
-      'GenericBrowser'  => 'NokiaBrowser|OviBrowser|SEMC.*Browser'
-    );
-    
-    function __construct(){
-        
-        // Merge all rules together.
-        $this->detectionRules = array_merge(
-                                            $this->phoneDevices, 
-                                            $this->tabletDevices, 
-                                            $this->operatingSystems, 
-                                            $this->userAgents
-                                            );
-        $this->userAgent    = isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : null;
-        $this->accept       = isset($_SERVER['HTTP_ACCEPT']) ? $_SERVER['HTTP_ACCEPT'] : null;
-        
-        if (
-		isset($_SERVER['HTTP_X_WAP_PROFILE']) ||
-        isset($_SERVER['HTTP_X_WAP_CLIENTID']) ||
-        isset($_SERVER['HTTP_WAP_CONNECTION']) ||
-		isset($_SERVER['HTTP_PROFILE']) ||
-		isset($_SERVER['HTTP_X_OPERAMINI_PHONE_UA']) || // Reported by Nokia devices (eg. C3)
-        isset($_SERVER['HTTP_X_NOKIA_IPADDRESS']) ||
-        isset($_SERVER['HTTP_X_NOKIA_GATEWAY_ID']) ||
-        isset($_SERVER['HTTP_X_ORANGE_ID']) ||
-        isset($_SERVER['HTTP_X_VODAFONE_3GPDPCONTEXT']) ||
-        isset($_SERVER['HTTP_X_HUAWEI_USERID']) ||
-        isset($_SERVER['HTTP_UA_OS']) || // Reported by Windows Smartphones
-        (isset($_SERVER['HTTP_UA_CPU']) && $_SERVER['HTTP_UA_CPU'] == 'ARM') // Seen this on a HTC
-		) {
-                $this->isMobile = true;
-        } elseif (!empty($this->accept) && (strpos($this->accept, 'text/vnd.wap.wml') !== false || strpos($this->accept, 'application/vnd.wap.xhtml+xml') !== false)) {
-                $this->isMobile = true;
-        } else {
-                $this->_detect();
-        }        
-        
-    }
-	
-    public function getRules()
-    {
-        return $this->detectionRules;
-    }
-    
-    /**
-     * Magic overloading method.
-     * 
-     * @method boolean is[...]()
-     * @param string $name
-     * @param array $arguments
-     * @return mixed 
-     */
-    public function __call($name, $arguments)
-    {
-                
-        $key = substr($name, 2);
-        return $this->_detect($key);
-        
-    }
-    
-    /**
-     * Private method that does the detection of the 
-     * mobile devices.
-     * 
-     * @param string $key
-     * @return boolean|null 
-     */
-    private function _detect($key='')
-    {
-
-        if(empty($key)){ 
-
-            // Begin general search.
-            foreach($this->detectionRules as $_regex){
-                if(empty($_regex)){ continue; }
-                if(preg_match('/'.$_regex.'/is', $this->userAgent)){
-                    $this->isMobile = true;
-                    return true;
-                } 
-            }
-            return false;
-
-        } else {
-            
-            // Search for a certain key.
-            // Make the keys lowecase so we can match: isIphone(), isiPhone(), isiphone(), etc.
-            $key = strtolower($key);
-            $_rules = array_change_key_case($this->detectionRules);
-            
-            if(array_key_exists($key, $_rules)){
-                if(empty($_rules[$key])){ return null; }
-                if(preg_match('/'.$_rules[$key].'/is', $this->userAgent)){
-                    $this->isMobile = true;
-                    return true;
-                } else {
-                    return false;
-                }           
-            } else {
-                trigger_error("Method $key is not defined", E_USER_WARNING);
-            }
-            
-            return false;
-
-        }
-
-    }
-        
-    /**
-    * Check if the device is mobile.
-    * Returns true if any type of mobile device detected, including special ones
-    * @return bool
-    */
-    public function isMobile()
-    {
-	    return $this->isMobile;
-    } 
-    
-    /**
-    * Check if the device is a tablet.
-    * Return true if any type of tablet device is detected.
-    * @return boolean 
-    */
-    public function isTablet()
-    {
-
-	foreach($this->tabletDevices as $_regex){
-	    if(preg_match('/'.$_regex.'/is', $this->userAgent)){
-		$this->isTablet = true;
-		return true;
-	    }
-	}
-
-	return false;        
-
-    }
-    
-    
-}
\ No newline at end of file
+<?php
+/**
+ * Mobile Detect Library
+ * =====================
+ *
+ * Motto: "Every business should have a mobile detection script to detect mobile readers"
+ *
+ * Mobile_Detect is a lightweight PHP class for detecting mobile devices (including tablets).
+ * It uses the User-Agent string combined with specific HTTP headers to detect the mobile environment.
+ *
+ * @author      Current authors: Serban Ghita <serbanghita@gmail.com>
+ *                               Nick Ilyin <nick.ilyin@gmail.com>
+ *
+ *              Original author: Victor Stanciu <vic.stanciu@gmail.com>
+ *
+ * @license     Code and contributions have 'MIT License'
+ *              More details: https://github.com/serbanghita/Mobile-Detect/blob/master/LICENSE.txt
+ *
+ * @link        Homepage:     http://mobiledetect.net
+ *              GitHub Repo:  https://github.com/serbanghita/Mobile-Detect
+ *              Google Code:  http://code.google.com/p/php-mobile-detect/
+ *              README:       https://github.com/serbanghita/Mobile-Detect/blob/master/README.md
+ *              HOWTO:        https://github.com/serbanghita/Mobile-Detect/wiki/Code-examples
+ *
+ * @version     2.8.11
+ */
+
+class Mobile_Detect
+{
+    /**
+     * Mobile detection type.
+     *
+     * @deprecated since version 2.6.9
+     */
+    const DETECTION_TYPE_MOBILE     = 'mobile';
+
+    /**
+     * Extended detection type.
+     *
+     * @deprecated since version 2.6.9
+     */
+    const DETECTION_TYPE_EXTENDED   = 'extended';
+
+    /**
+     * A frequently used regular expression to extract version #s.
+     *
+     * @deprecated since version 2.6.9
+     */
+    const VER                       = '([\w._\+]+)';
+
+    /**
+     * Top-level device.
+     */
+    const MOBILE_GRADE_A            = 'A';
+
+    /**
+     * Mid-level device.
+     */
+    const MOBILE_GRADE_B            = 'B';
+
+    /**
+     * Low-level device.
+     */
+    const MOBILE_GRADE_C            = 'C';
+
+    /**
+     * Stores the version number of the current release.
+     */
+    const VERSION                   = '2.8.11';
+
+    /**
+     * A type for the version() method indicating a string return value.
+     */
+    const VERSION_TYPE_STRING       = 'text';
+
+    /**
+     * A type for the version() method indicating a float return value.
+     */
+    const VERSION_TYPE_FLOAT        = 'float';
+
+    /**
+     * The User-Agent HTTP header is stored in here.
+     * @var string
+     */
+    protected $userAgent = null;
+
+    /**
+     * HTTP headers in the PHP-flavor. So HTTP_USER_AGENT and SERVER_SOFTWARE.
+     * @var array
+     */
+    protected $httpHeaders = array();
+
+    /**
+     * The matching Regex.
+     * This is good for debug.
+     * @var string
+     */
+    protected $matchingRegex = null;
+
+    /**
+     * The matches extracted from the regex expression.
+     * This is good for debug.
+     * @var string
+     */
+    protected $matchesArray = null;
+
+    /**
+     * The detection type, using self::DETECTION_TYPE_MOBILE or self::DETECTION_TYPE_EXTENDED.
+     *
+     * @deprecated since version 2.6.9
+     *
+     * @var string
+     */
+    protected $detectionType = self::DETECTION_TYPE_MOBILE;
+
+    /**
+     * HTTP headers that trigger the 'isMobile' detection
+     * to be true.
+     *
+     * @var array
+     */
+    protected static $mobileHeaders = array(
+
+            'HTTP_ACCEPT'                  => array('matches' => array(
+                                                                        // Opera Mini; @reference: http://dev.opera.com/articles/view/opera-binary-markup-language/
+                                                                        'application/x-obml2d',
+                                                                        // BlackBerry devices.
+                                                                        'application/vnd.rim.html',
+                                                                        'text/vnd.wap.wml',
+                                                                        'application/vnd.wap.xhtml+xml'
+                                            )),
+            'HTTP_X_WAP_PROFILE'           => null,
+            'HTTP_X_WAP_CLIENTID'          => null,
+            'HTTP_WAP_CONNECTION'          => null,
+            'HTTP_PROFILE'                 => null,
+            // Reported by Opera on Nokia devices (eg. C3).
+            'HTTP_X_OPERAMINI_PHONE_UA'    => null,
+            'HTTP_X_NOKIA_GATEWAY_ID'      => null,
+            'HTTP_X_ORANGE_ID'             => null,
+            'HTTP_X_VODAFONE_3GPDPCONTEXT' => null,
+            'HTTP_X_HUAWEI_USERID'         => null,
+            // Reported by Windows Smartphones.
+            'HTTP_UA_OS'                   => null,
+            // Reported by Verizon, Vodafone proxy system.
+            'HTTP_X_MOBILE_GATEWAY'        => null,
+            // Seen this on HTC Sensation. SensationXE_Beats_Z715e.
+            'HTTP_X_ATT_DEVICEID'          => null,
+            // Seen this on a HTC.
+            'HTTP_UA_CPU'                  => array('matches' => array('ARM')),
+    );
+
+    /**
+     * List of mobile devices (phones).
+     *
+     * @var array
+     */
+    protected static $phoneDevices = array(
+        'iPhone'        => '\biPhone\b|\biPod\b', // |\biTunes
+        'BlackBerry'    => 'BlackBerry|\bBB10\b|rim[0-9]+',
+        'HTC'           => 'HTC|HTC.*(Sensation|Evo|Vision|Explorer|6800|8100|8900|A7272|S510e|C110e|Legend|Desire|T8282)|APX515CKT|Qtek9090|APA9292KT|HD_mini|Sensation.*Z710e|PG86100|Z715e|Desire.*(A8181|HD)|ADR6200|ADR6400L|ADR6425|001HT|Inspire 4G|Android.*\bEVO\b|T-Mobile G1|Z520m',
+        'Nexus'         => 'Nexus One|Nexus S|Galaxy.*Nexus|Android.*Nexus.*Mobile|Nexus 4|Nexus 5|Nexus 6',
+        // @todo: Is 'Dell Streak' a tablet or a phone? ;)
+        'Dell'          => 'Dell.*Streak|Dell.*Aero|Dell.*Venue|DELL.*Venue Pro|Dell Flash|Dell Smoke|Dell Mini 3iX|XCD28|XCD35|\b001DL\b|\b101DL\b|\bGS01\b',
+        'Motorola'      => 'Motorola|DROIDX|DROID BIONIC|\bDroid\b.*Build|Android.*Xoom|HRI39|MOT-|A1260|A1680|A555|A853|A855|A953|A955|A956|Motorola.*ELECTRIFY|Motorola.*i1|i867|i940|MB200|MB300|MB501|MB502|MB508|MB511|MB520|MB525|MB526|MB611|MB612|MB632|MB810|MB855|MB860|MB861|MB865|MB870|ME501|ME502|ME511|ME525|ME600|ME632|ME722|ME811|ME860|ME863|ME865|MT620|MT710|MT716|MT720|MT810|MT870|MT917|Motorola.*TITANIUM|WX435|WX445|XT300|XT301|XT311|XT316|XT317|XT319|XT320|XT390|XT502|XT530|XT531|XT532|XT535|XT603|XT610|XT611|XT615|XT681|XT701|XT702|XT711|XT720|XT800|XT806|XT860|XT862|XT875|XT882|XT883|XT894|XT901|XT907|XT909|XT910|XT912|XT928|XT926|XT915|XT919|XT925',
+        'Samsung'       => 'Samsung|SGH-I337|BGT-S5230|GT-B2100|GT-B2700|GT-B2710|GT-B3210|GT-B3310|GT-B3410|GT-B3730|GT-B3740|GT-B5510|GT-B5512|GT-B5722|GT-B6520|GT-B7300|GT-B7320|GT-B7330|GT-B7350|GT-B7510|GT-B7722|GT-B7800|GT-C3010|GT-C3011|GT-C3060|GT-C3200|GT-C3212|GT-C3212I|GT-C3262|GT-C3222|GT-C3300|GT-C3300K|GT-C3303|GT-C3303K|GT-C3310|GT-C3322|GT-C3330|GT-C3350|GT-C3500|GT-C3510|GT-C3530|GT-C3630|GT-C3780|GT-C5010|GT-C5212|GT-C6620|GT-C6625|GT-C6712|GT-E1050|GT-E1070|GT-E1075|GT-E1080|GT-E1081|GT-E1085|GT-E1087|GT-E1100|GT-E1107|GT-E1110|GT-E1120|GT-E1125|GT-E1130|GT-E1160|GT-E1170|GT-E1175|GT-E1180|GT-E1182|GT-E1200|GT-E1210|GT-E1225|GT-E1230|GT-E1390|GT-E2100|GT-E2120|GT-E2121|GT-E2152|GT-E2220|GT-E2222|GT-E2230|GT-E2232|GT-E2250|GT-E2370|GT-E2550|GT-E2652|GT-E3210|GT-E3213|GT-I5500|GT-I5503|GT-I5700|GT-I5800|GT-I5801|GT-I6410|GT-I6420|GT-I7110|GT-I7410|GT-I7500|GT-I8000|GT-I8150|GT-I8160|GT-I8190|GT-I8320|GT-I8330|GT-I8350|GT-I8530|GT-I8700|GT-I8703|GT-I8910|GT-I9000|GT-I9001|GT-I9003|GT-I9010|GT-I9020|GT-I9023|GT-I9070|GT-I9082|GT-I9100|GT-I9103|GT-I9220|GT-I9250|GT-I9300|GT-I9305|GT-I9500|GT-I9505|GT-M3510|GT-M5650|GT-M7500|GT-M7600|GT-M7603|GT-M8800|GT-M8910|GT-N7000|GT-S3110|GT-S3310|GT-S3350|GT-S3353|GT-S3370|GT-S3650|GT-S3653|GT-S3770|GT-S3850|GT-S5210|GT-S5220|GT-S5229|GT-S5230|GT-S5233|GT-S5250|GT-S5253|GT-S5260|GT-S5263|GT-S5270|GT-S5300|GT-S5330|GT-S5350|GT-S5360|GT-S5363|GT-S5369|GT-S5380|GT-S5380D|GT-S5560|GT-S5570|GT-S5600|GT-S5603|GT-S5610|GT-S5620|GT-S5660|GT-S5670|GT-S5690|GT-S5750|GT-S5780|GT-S5830|GT-S5839|GT-S6102|GT-S6500|GT-S7070|GT-S7200|GT-S7220|GT-S7230|GT-S7233|GT-S7250|GT-S7500|GT-S7530|GT-S7550|GT-S7562|GT-S7710|GT-S8000|GT-S8003|GT-S8500|GT-S8530|GT-S8600|SCH-A310|SCH-A530|SCH-A570|SCH-A610|SCH-A630|SCH-A650|SCH-A790|SCH-A795|SCH-A850|SCH-A870|SCH-A890|SCH-A930|SCH-A950|SCH-A970|SCH-A990|SCH-I100|SCH-I110|SCH-I400|SCH-I405|SCH-I500|SCH-I510|SCH-I515|SCH-I600|SCH-I730|SCH-I760|SCH-I770|SCH-I830|SCH-I910|SCH-I920|SCH-I959|SCH-LC11|SCH-N150|SCH-N300|SCH-R100|SCH-R300|SCH-R351|SCH-R400|SCH-R410|SCH-T300|SCH-U310|SCH-U320|SCH-U350|SCH-U360|SCH-U365|SCH-U370|SCH-U380|SCH-U410|SCH-U430|SCH-U450|SCH-U460|SCH-U470|SCH-U490|SCH-U540|SCH-U550|SCH-U620|SCH-U640|SCH-U650|SCH-U660|SCH-U700|SCH-U740|SCH-U750|SCH-U810|SCH-U820|SCH-U900|SCH-U940|SCH-U960|SCS-26UC|SGH-A107|SGH-A117|SGH-A127|SGH-A137|SGH-A157|SGH-A167|SGH-A177|SGH-A187|SGH-A197|SGH-A227|SGH-A237|SGH-A257|SGH-A437|SGH-A517|SGH-A597|SGH-A637|SGH-A657|SGH-A667|SGH-A687|SGH-A697|SGH-A707|SGH-A717|SGH-A727|SGH-A737|SGH-A747|SGH-A767|SGH-A777|SGH-A797|SGH-A817|SGH-A827|SGH-A837|SGH-A847|SGH-A867|SGH-A877|SGH-A887|SGH-A897|SGH-A927|SGH-B100|SGH-B130|SGH-B200|SGH-B220|SGH-C100|SGH-C110|SGH-C120|SGH-C130|SGH-C140|SGH-C160|SGH-C170|SGH-C180|SGH-C200|SGH-C207|SGH-C210|SGH-C225|SGH-C230|SGH-C417|SGH-C450|SGH-D307|SGH-D347|SGH-D357|SGH-D407|SGH-D415|SGH-D780|SGH-D807|SGH-D980|SGH-E105|SGH-E200|SGH-E315|SGH-E316|SGH-E317|SGH-E335|SGH-E590|SGH-E635|SGH-E715|SGH-E890|SGH-F300|SGH-F480|SGH-I200|SGH-I300|SGH-I320|SGH-I550|SGH-I577|SGH-I600|SGH-I607|SGH-I617|SGH-I627|SGH-I637|SGH-I677|SGH-I700|SGH-I717|SGH-I727|SGH-i747M|SGH-I777|SGH-I780|SGH-I827|SGH-I847|SGH-I857|SGH-I896|SGH-I897|SGH-I900|SGH-I907|SGH-I917|SGH-I927|SGH-I937|SGH-I997|SGH-J150|SGH-J200|SGH-L170|SGH-L700|SGH-M110|SGH-M150|SGH-M200|SGH-N105|SGH-N500|SGH-N600|SGH-N620|SGH-N625|SGH-N700|SGH-N710|SGH-P107|SGH-P207|SGH-P300|SGH-P310|SGH-P520|SGH-P735|SGH-P777|SGH-Q105|SGH-R210|SGH-R220|SGH-R225|SGH-S105|SGH-S307|SGH-T109|SGH-T119|SGH-T139|SGH-T209|SGH-T219|SGH-T229|SGH-T239|SGH-T249|SGH-T259|SGH-T309|SGH-T319|SGH-T329|SGH-T339|SGH-T349|SGH-T359|SGH-T369|SGH-T379|SGH-T409|SGH-T429|SGH-T439|SGH-T459|SGH-T469|SGH-T479|SGH-T499|SGH-T509|SGH-T519|SGH-T539|SGH-T559|SGH-T589|SGH-T609|SGH-T619|SGH-T629|SGH-T639|SGH-T659|SGH-T669|SGH-T679|SGH-T709|SGH-T719|SGH-T729|SGH-T739|SGH-T746|SGH-T749|SGH-T759|SGH-T769|SGH-T809|SGH-T819|SGH-T839|SGH-T919|SGH-T929|SGH-T939|SGH-T959|SGH-T989|SGH-U100|SGH-U200|SGH-U800|SGH-V205|SGH-V206|SGH-X100|SGH-X105|SGH-X120|SGH-X140|SGH-X426|SGH-X427|SGH-X475|SGH-X495|SGH-X497|SGH-X507|SGH-X600|SGH-X610|SGH-X620|SGH-X630|SGH-X700|SGH-X820|SGH-X890|SGH-Z130|SGH-Z150|SGH-Z170|SGH-ZX10|SGH-ZX20|SHW-M110|SPH-A120|SPH-A400|SPH-A420|SPH-A460|SPH-A500|SPH-A560|SPH-A600|SPH-A620|SPH-A660|SPH-A700|SPH-A740|SPH-A760|SPH-A790|SPH-A800|SPH-A820|SPH-A840|SPH-A880|SPH-A900|SPH-A940|SPH-A960|SPH-D600|SPH-D700|SPH-D710|SPH-D720|SPH-I300|SPH-I325|SPH-I330|SPH-I350|SPH-I500|SPH-I600|SPH-I700|SPH-L700|SPH-M100|SPH-M220|SPH-M240|SPH-M300|SPH-M305|SPH-M320|SPH-M330|SPH-M350|SPH-M360|SPH-M370|SPH-M380|SPH-M510|SPH-M540|SPH-M550|SPH-M560|SPH-M570|SPH-M580|SPH-M610|SPH-M620|SPH-M630|SPH-M800|SPH-M810|SPH-M850|SPH-M900|SPH-M910|SPH-M920|SPH-M930|SPH-N100|SPH-N200|SPH-N240|SPH-N300|SPH-N400|SPH-Z400|SWC-E100|SCH-i909|GT-N7100|GT-N7105|SCH-I535|SM-N900A|SGH-I317|SGH-T999L|GT-S5360B|GT-I8262|GT-S6802|GT-S6312|GT-S6310|GT-S5312|GT-S5310|GT-I9105|GT-I8510|GT-S6790N|SM-G7105|SM-N9005|GT-S5301|GT-I9295|GT-I9195|SM-C101|GT-S7392|GT-S7560|GT-B7610|GT-I5510|GT-S7582|GT-S7530E|GT-I8750',
+        'LG'            => '\bLG\b;|LG[- ]?(C800|C900|E400|E610|E900|E-900|F160|F180K|F180L|F180S|730|855|L160|LS740|LS840|LS970|LU6200|MS690|MS695|MS770|MS840|MS870|MS910|P500|P700|P705|VM696|AS680|AS695|AX840|C729|E970|GS505|272|C395|E739BK|E960|L55C|L75C|LS696|LS860|P769BK|P350|P500|P509|P870|UN272|US730|VS840|VS950|LN272|LN510|LS670|LS855|LW690|MN270|MN510|P509|P769|P930|UN200|UN270|UN510|UN610|US670|US740|US760|UX265|UX840|VN271|VN530|VS660|VS700|VS740|VS750|VS910|VS920|VS930|VX9200|VX11000|AX840A|LW770|P506|P925|P999|E612|D955|D802)',
+        'Sony'          => 'SonyST|SonyLT|SonyEricsson|SonyEricssonLT15iv|LT18i|E10i|LT28h|LT26w|SonyEricssonMT27i|C5303|C6902|C6903|C6906|C6943|D2533',
+        'Asus'          => 'Asus.*Galaxy|PadFone.*Mobile',
+        // http://www.micromaxinfo.com/mobiles/smartphones
+        // Added because the codes might conflict with Acer Tablets.
+        'Micromax'      => 'Micromax.*\b(A210|A92|A88|A72|A111|A110Q|A115|A116|A110|A90S|A26|A51|A35|A54|A25|A27|A89|A68|A65|A57|A90)\b',
+        // @todo Complete the regex.
+        'Palm'          => 'PalmSource|Palm', // avantgo|blazer|elaine|hiptop|plucker|xiino ;
+        'Vertu'         => 'Vertu|Vertu.*Ltd|Vertu.*Ascent|Vertu.*Ayxta|Vertu.*Constellation(F|Quest)?|Vertu.*Monika|Vertu.*Signature', // Just for fun ;)
+        // http://www.pantech.co.kr/en/prod/prodList.do?gbrand=VEGA (PANTECH)
+        // Most of the VEGA devices are legacy. PANTECH seem to be newer devices based on Android.
+        'Pantech'       => 'PANTECH|IM-A850S|IM-A840S|IM-A830L|IM-A830K|IM-A830S|IM-A820L|IM-A810K|IM-A810S|IM-A800S|IM-T100K|IM-A725L|IM-A780L|IM-A775C|IM-A770K|IM-A760S|IM-A750K|IM-A740S|IM-A730S|IM-A720L|IM-A710K|IM-A690L|IM-A690S|IM-A650S|IM-A630K|IM-A600S|VEGA PTL21|PT003|P8010|ADR910L|P6030|P6020|P9070|P4100|P9060|P5000|CDM8992|TXT8045|ADR8995|IS11PT|P2030|P6010|P8000|PT002|IS06|CDM8999|P9050|PT001|TXT8040|P2020|P9020|P2000|P7040|P7000|C790',
+        // http://www.fly-phone.com/devices/smartphones/ ; Included only smartphones.
+        'Fly'           => 'IQ230|IQ444|IQ450|IQ440|IQ442|IQ441|IQ245|IQ256|IQ236|IQ255|IQ235|IQ245|IQ275|IQ240|IQ285|IQ280|IQ270|IQ260|IQ250',
+       'iMobile'        => 'i-mobile (IQ|i-STYLE|idea|ZAA|Hitz)',
+        // Added simvalley mobile just for fun. They have some interesting devices.
+        // http://www.simvalley.fr/telephonie---gps-_22_telephonie-mobile_telephones_.html
+        'SimValley'     => '\b(SP-80|XT-930|SX-340|XT-930|SX-310|SP-360|SP60|SPT-800|SP-120|SPT-800|SP-140|SPX-5|SPX-8|SP-100|SPX-8|SPX-12)\b',
+         // Wolfgang - a brand that is sold by Aldi supermarkets.
+         // http://www.wolfgangmobile.com/
+        'Wolfgang'      => 'AT-B24D|AT-AS50HD|AT-AS40W|AT-AS55HD|AT-AS45q2|AT-B26D|AT-AS50Q',
+        'Alcatel'       => 'Alcatel',
+        'Nintendo' => 'Nintendo 3DS',
+        // http://en.wikipedia.org/wiki/Amoi
+        'Amoi'          => 'Amoi',
+        // http://en.wikipedia.org/wiki/INQ
+        'INQ'           => 'INQ',
+        // @Tapatalk is a mobile app; http://support.tapatalk.com/threads/smf-2-0-2-os-and-browser-detection-plugin-and-tapatalk.15565/#post-79039
+        'GenericPhone'  => 'Tapatalk|PDA;|SAGEM|\bmmp\b|pocket|\bpsp\b|symbian|Smartphone|smartfon|treo|up.browser|up.link|vodafone|\bwap\b|nokia|Series40|Series60|S60|SonyEricsson|N900|MAUI.*WAP.*Browser',
+    );
+
+    /**
+     * List of tablet devices.
+     *
+     * @var array
+     */
+    protected static $tabletDevices = array(
+        'iPad'              => 'iPad|iPad.*Mobile', // @todo: check for mobile friendly emails topic.
+        'NexusTablet'       => 'Android.*Nexus[\s]+(7|9|10)|^.*Android.*Nexus(?:(?!Mobile).)*$',
+        'SamsungTablet'     => 'SAMSUNG.*Tablet|Galaxy.*Tab|SC-01C|GT-P1000|GT-P1003|GT-P1010|GT-P3105|GT-P6210|GT-P6800|GT-P6810|GT-P7100|GT-P7300|GT-P7310|GT-P7500|GT-P7510|SCH-I800|SCH-I815|SCH-I905|SGH-I957|SGH-I987|SGH-T849|SGH-T859|SGH-T869|SPH-P100|GT-P3100|GT-P3108|GT-P3110|GT-P5100|GT-P5110|GT-P6200|GT-P7320|GT-P7511|GT-N8000|GT-P8510|SGH-I497|SPH-P500|SGH-T779|SCH-I705|SCH-I915|GT-N8013|GT-P3113|GT-P5113|GT-P8110|GT-N8010|GT-N8005|GT-N8020|GT-P1013|GT-P6201|GT-P7501|GT-N5100|GT-N5105|GT-N5110|SHV-E140K|SHV-E140L|SHV-E140S|SHV-E150S|SHV-E230K|SHV-E230L|SHV-E230S|SHW-M180K|SHW-M180L|SHW-M180S|SHW-M180W|SHW-M300W|SHW-M305W|SHW-M380K|SHW-M380S|SHW-M380W|SHW-M430W|SHW-M480K|SHW-M480S|SHW-M480W|SHW-M485W|SHW-M486W|SHW-M500W|GT-I9228|SCH-P739|SCH-I925|GT-I9200|GT-I9205|GT-P5200|GT-P5210|GT-P5210X|SM-T311|SM-T310|SM-T310X|SM-T210|SM-T210R|SM-T211|SM-P600|SM-P601|SM-P605|SM-P900|SM-P901|SM-T217|SM-T217A|SM-T217S|SM-P6000|SM-T3100|SGH-I467|XE500|SM-T110|GT-P5220|GT-I9200X|GT-N5110X|GT-N5120|SM-P905|SM-T111|SM-T2105|SM-T315|SM-T320|SM-T320X|SM-T321|SM-T520|SM-T525|SM-T530NU|SM-T230NU|SM-T330NU|SM-T900|XE500T1C|SM-P605V|SM-P905V|SM-P600X|SM-P900X|SM-T210X|SM-T230|SM-T230X|SM-T325|GT-P7503|SM-T531|SM-T330|SM-T530|SM-T705C|SM-T535|SM-T331|SM-T800|SM-T700|SM-T537|SM-T807|SM-P907A|SM-T337A|SM-T707A|SM-T807A|SM-T237P|SM-T807P|SM-P607T|SM-T217T|SM-T337T', // SCH-P709|SCH-P729|SM-T2558 - Samsung Mega - treat them like a regular phone.
+        // http://docs.aws.amazon.com/silk/latest/developerguide/user-agent.html
+        'Kindle'            => 'Kindle|Silk.*Accelerated|Android.*\b(KFOT|KFTT|KFJWI|KFJWA|KFOTE|KFSOWI|KFTHWI|KFTHWA|KFAPWI|KFAPWA|WFJWAE|KFSAWA|KFSAWI|KFASWI)\b',
+        // Only the Surface tablets with Windows RT are considered mobile.
+        // http://msdn.microsoft.com/en-us/library/ie/hh920767(v=vs.85).aspx
+        'SurfaceTablet'     => 'Windows NT [0-9.]+; ARM;.*(Tablet|ARMBJS)',
+        // http://shopping1.hp.com/is-bin/INTERSHOP.enfinity/WFS/WW-USSMBPublicStore-Site/en_US/-/USD/ViewStandardCatalog-Browse?CatalogCategoryID=JfIQ7EN5lqMAAAEyDcJUDwMT
+        'HPTablet'          => 'HP Slate (7|8|10)|HP ElitePad 900|hp-tablet|EliteBook.*Touch|HP 8|Slate 21|HP SlateBook 10',
+        // Watch out for PadFone, see #132.
+        // http://www.asus.com/de/Tablets_Mobile/Memo_Pad_Products/
+        'AsusTablet'        => '^.*PadFone((?!Mobile).)*$|Transformer|TF101|TF101G|TF300T|TF300TG|TF300TL|TF700T|TF700KL|TF701T|TF810C|ME171|ME301T|ME302C|ME371MG|ME370T|ME372MG|ME172V|ME173X|ME400C|Slider SL101|\bK00F\b|\bK00C\b|\bK00E\b|\bK00L\b|TX201LA|ME176C|ME102A|\bM80TA\b|ME372CL|ME560CG|ME372CG',
+        'BlackBerryTablet'  => 'PlayBook|RIM Tablet',
+        'HTCtablet'         => 'HTC_Flyer_P512|HTC Flyer|HTC Jetstream|HTC-P715a|HTC EVO View 4G|PG41200|PG09410',
+        'MotorolaTablet'    => 'xoom|sholest|MZ615|MZ605|MZ505|MZ601|MZ602|MZ603|MZ604|MZ606|MZ607|MZ608|MZ609|MZ615|MZ616|MZ617',
+        'NookTablet'        => 'Android.*Nook|NookColor|nook browser|BNRV200|BNRV200A|BNTV250|BNTV250A|BNTV400|BNTV600|LogicPD Zoom2',
+        // http://www.acer.ro/ac/ro/RO/content/drivers
+        // http://www.packardbell.co.uk/pb/en/GB/content/download (Packard Bell is part of Acer)
+        // http://us.acer.com/ac/en/US/content/group/tablets
+        // http://www.acer.de/ac/de/DE/content/models/tablets/
+        // Can conflict with Micromax and Motorola phones codes.
+        'AcerTablet'        => 'Android.*; \b(A100|A101|A110|A200|A210|A211|A500|A501|A510|A511|A700|A701|W500|W500P|W501|W501P|W510|W511|W700|G100|G100W|B1-A71|B1-710|B1-711|A1-810|A1-811|A1-830)\b|W3-810|\bA3-A10\b',
+        // http://eu.computers.toshiba-europe.com/innovation/family/Tablets/1098744/banner_id/tablet_footerlink/
+        // http://us.toshiba.com/tablets/tablet-finder
+        // http://www.toshiba.co.jp/regza/tablet/
+        'ToshibaTablet'     => 'Android.*(AT100|AT105|AT200|AT205|AT270|AT275|AT300|AT305|AT1S5|AT500|AT570|AT700|AT830)|TOSHIBA.*FOLIO',
+        // http://www.nttdocomo.co.jp/english/service/developer/smart_phone/technical_info/spec/index.html
+        // http://www.lg.com/us/tablets
+        'LGTablet'          => '\bL-06C|LG-V909|LG-V900|LG-V700|LG-V510|LG-V500|LG-V410|LG-V400|LG-VK810\b',
+        'FujitsuTablet'     => 'Android.*\b(F-01D|F-02F|F-05E|F-10D|M532|Q572)\b',
+        // Prestigio Tablets http://www.prestigio.com/support
+        'PrestigioTablet'   => 'PMP3170B|PMP3270B|PMP3470B|PMP7170B|PMP3370B|PMP3570C|PMP5870C|PMP3670B|PMP5570C|PMP5770D|PMP3970B|PMP3870C|PMP5580C|PMP5880D|PMP5780D|PMP5588C|PMP7280C|PMP7280C3G|PMP7280|PMP7880D|PMP5597D|PMP5597|PMP7100D|PER3464|PER3274|PER3574|PER3884|PER5274|PER5474|PMP5097CPRO|PMP5097|PMP7380D|PMP5297C|PMP5297C_QUAD',
+        // http://support.lenovo.com/en_GB/downloads/default.page?#
+        'LenovoTablet'      => 'Idea(Tab|Pad)( A1|A10| K1|)|ThinkPad([ ]+)?Tablet|Lenovo.*(S2109|S2110|S5000|S6000|K3011|A3000|A3500|A1000|A2107|A2109|A1107|A5500|A7600|B6000|B8000|B8080)(-|)(FL|F|HV|H|)',
+        // http://www.dell.com/support/home/us/en/04/Products/tab_mob/tablets
+        'DellTablet'        => 'Venue 11|Venue 8|Venue 7|Dell Streak 10|Dell Streak 7',
+        // http://www.yarvik.com/en/matrix/tablets/
+        'YarvikTablet'      => 'Android.*\b(TAB210|TAB211|TAB224|TAB250|TAB260|TAB264|TAB310|TAB360|TAB364|TAB410|TAB411|TAB420|TAB424|TAB450|TAB460|TAB461|TAB464|TAB465|TAB467|TAB468|TAB07-100|TAB07-101|TAB07-150|TAB07-151|TAB07-152|TAB07-200|TAB07-201-3G|TAB07-210|TAB07-211|TAB07-212|TAB07-214|TAB07-220|TAB07-400|TAB07-485|TAB08-150|TAB08-200|TAB08-201-3G|TAB08-201-30|TAB09-100|TAB09-211|TAB09-410|TAB10-150|TAB10-201|TAB10-211|TAB10-400|TAB10-410|TAB13-201|TAB274EUK|TAB275EUK|TAB374EUK|TAB462EUK|TAB474EUK|TAB9-200)\b',
+        'MedionTablet'      => 'Android.*\bOYO\b|LIFE.*(P9212|P9514|P9516|S9512)|LIFETAB',
+        'ArnovaTablet'      => 'AN10G2|AN7bG3|AN7fG3|AN8G3|AN8cG3|AN7G3|AN9G3|AN7dG3|AN7dG3ST|AN7dG3ChildPad|AN10bG3|AN10bG3DT|AN9G2',
+        // http://www.intenso.de/kategorie_en.php?kategorie=33
+        // @todo: http://www.nbhkdz.com/read/b8e64202f92a2df129126bff.html - investigate
+        'IntensoTablet'     => 'INM8002KP|INM1010FP|INM805ND|Intenso Tab|TAB1004',
+        // IRU.ru Tablets http://www.iru.ru/catalog/soho/planetable/
+        'IRUTablet'         => 'M702pro',
+        'MegafonTablet'     => 'MegaFon V9|\bZTE V9\b|Android.*\bMT7A\b',
+        // http://www.e-boda.ro/tablete-pc.html
+        'EbodaTablet'       => 'E-Boda (Supreme|Impresspeed|Izzycomm|Essential)',
+        // http://www.allview.ro/produse/droseries/lista-tablete-pc/
+        'AllViewTablet'           => 'Allview.*(Viva|Alldro|City|Speed|All TV|Frenzy|Quasar|Shine|TX1|AX1|AX2)',
+        // http://wiki.archosfans.com/index.php?title=Main_Page
+        'ArchosTablet'      => '\b(101G9|80G9|A101IT)\b|Qilive 97R|Archos5|\bARCHOS (70|79|80|90|97|101|FAMILYPAD|)(b|)(G10| Cobalt| TITANIUM(HD|)| Xenon| Neon|XSK| 2| XS 2| PLATINUM| CARBON|GAMEPAD)\b',
+        // http://www.ainol.com/plugin.php?identifier=ainol&module=product
+        'AinolTablet'       => 'NOVO7|NOVO8|NOVO10|Novo7Aurora|Novo7Basic|NOVO7PALADIN|novo9-Spark',
+        // @todo: inspect http://esupport.sony.com/US/p/select-system.pl?DIRECTOR=DRIVER
+        // Readers http://www.atsuhiro-me.net/ebook/sony-reader/sony-reader-web-browser
+        // http://www.sony.jp/support/tablet/
+        'SonyTablet'        => 'Sony.*Tablet|Xperia Tablet|Sony Tablet S|SO-03E|SGPT12|SGPT13|SGPT114|SGPT121|SGPT122|SGPT123|SGPT111|SGPT112|SGPT113|SGPT131|SGPT132|SGPT133|SGPT211|SGPT212|SGPT213|SGP311|SGP312|SGP321|EBRD1101|EBRD1102|EBRD1201|SGP351|SGP341|SGP511|SGP512|SGP521|SGP541|SGP551',
+        // http://www.support.philips.com/support/catalog/worldproducts.jsp?userLanguage=en&userCountry=cn&categoryid=3G_LTE_TABLET_SU_CN_CARE&title=3G%20tablets%20/%20LTE%20range&_dyncharset=UTF-8
+        'PhilipsTablet'     => '\b(PI2010|PI3000|PI3100|PI3105|PI3110|PI3205|PI3210|PI3900|PI4010|PI7000|PI7100)\b',
+        // db + http://www.cube-tablet.com/buy-products.html
+        'CubeTablet'        => 'Android.*(K8GT|U9GT|U10GT|U16GT|U17GT|U18GT|U19GT|U20GT|U23GT|U30GT)|CUBE U8GT',
+        // http://www.cobyusa.com/?p=pcat&pcat_id=3001
+        'CobyTablet'        => 'MID1042|MID1045|MID1125|MID1126|MID7012|MID7014|MID7015|MID7034|MID7035|MID7036|MID7042|MID7048|MID7127|MID8042|MID8048|MID8127|MID9042|MID9740|MID9742|MID7022|MID7010',
+        // http://www.match.net.cn/products.asp
+        'MIDTablet'         => 'M9701|M9000|M9100|M806|M1052|M806|T703|MID701|MID713|MID710|MID727|MID760|MID830|MID728|MID933|MID125|MID810|MID732|MID120|MID930|MID800|MID731|MID900|MID100|MID820|MID735|MID980|MID130|MID833|MID737|MID960|MID135|MID860|MID736|MID140|MID930|MID835|MID733',
+        // http://www.msi.com/support
+        // @todo Research the Windows Tablets.
+        'MSITablet' => 'MSI \b(Primo 73K|Primo 73L|Primo 81L|Primo 77|Primo 93|Primo 75|Primo 76|Primo 73|Primo 81|Primo 91|Primo 90|Enjoy 71|Enjoy 7|Enjoy 10)\b',
+        // @todo http://www.kyoceramobile.com/support/drivers/
+    //    'KyoceraTablet' => null,
+        // @todo http://intexuae.com/index.php/category/mobile-devices/tablets-products/
+    //    'IntextTablet' => null,
+        // http://pdadb.net/index.php?m=pdalist&list=SMiT (NoName Chinese Tablets)
+        // http://www.imp3.net/14/show.php?itemid=20454
+        'SMiTTablet'        => 'Android.*(\bMID\b|MID-560|MTV-T1200|MTV-PND531|MTV-P1101|MTV-PND530)',
+        // http://www.rock-chips.com/index.php?do=prod&pid=2
+        'RockChipTablet'    => 'Android.*(RK2818|RK2808A|RK2918|RK3066)|RK2738|RK2808A',
+        // http://www.fly-phone.com/devices/tablets/ ; http://www.fly-phone.com/service/
+        'FlyTablet'         => 'IQ310|Fly Vision',
+        // http://www.bqreaders.com/gb/tablets-prices-sale.html
+        'bqTablet'          => 'bq.*(Elcano|Curie|Edison|Maxwell|Kepler|Pascal|Tesla|Hypatia|Platon|Newton|Livingstone|Cervantes|Avant)|Maxwell.*Lite|Maxwell.*Plus',
+        // http://www.huaweidevice.com/worldwide/productFamily.do?method=index&directoryId=5011&treeId=3290
+        // http://www.huaweidevice.com/worldwide/downloadCenter.do?method=index&directoryId=3372&treeId=0&tb=1&type=software (including legacy tablets)
+        'HuaweiTablet'      => 'MediaPad|MediaPad 7 Youth|IDEOS S7|S7-201c|S7-202u|S7-101|S7-103|S7-104|S7-105|S7-106|S7-201|S7-Slim',
+        // Nec or Medias Tab
+        'NecTablet'         => '\bN-06D|\bN-08D',
+        // Pantech Tablets: http://www.pantechusa.com/phones/
+        'PantechTablet'     => 'Pantech.*P4100',
+        // Broncho Tablets: http://www.broncho.cn/ (hard to find)
+        'BronchoTablet'     => 'Broncho.*(N701|N708|N802|a710)',
+        // http://versusuk.com/support.html
+        'VersusTablet'      => 'TOUCHPAD.*[78910]|\bTOUCHTAB\b',
+        // http://www.zync.in/index.php/our-products/tablet-phablets
+        'ZyncTablet'        => 'z1000|Z99 2G|z99|z930|z999|z990|z909|Z919|z900',
+        // http://www.positivoinformatica.com.br/www/pessoal/tablet-ypy/
+        'PositivoTablet'    => 'TB07STA|TB10STA|TB07FTA|TB10FTA',
+        // https://www.nabitablet.com/
+        'NabiTablet'        => 'Android.*\bNabi',
+        'KoboTablet'        => 'Kobo Touch|\bK080\b|\bVox\b Build|\bArc\b Build',
+        // French Danew Tablets http://www.danew.com/produits-tablette.php
+        'DanewTablet'       => 'DSlide.*\b(700|701R|702|703R|704|802|970|971|972|973|974|1010|1012)\b',
+        // Texet Tablets and Readers http://www.texet.ru/tablet/
+        'TexetTablet'       => 'NaviPad|TB-772A|TM-7045|TM-7055|TM-9750|TM-7016|TM-7024|TM-7026|TM-7041|TM-7043|TM-7047|TM-8041|TM-9741|TM-9747|TM-9748|TM-9751|TM-7022|TM-7021|TM-7020|TM-7011|TM-7010|TM-7023|TM-7025|TM-7037W|TM-7038W|TM-7027W|TM-9720|TM-9725|TM-9737W|TM-1020|TM-9738W|TM-9740|TM-9743W|TB-807A|TB-771A|TB-727A|TB-725A|TB-719A|TB-823A|TB-805A|TB-723A|TB-715A|TB-707A|TB-705A|TB-709A|TB-711A|TB-890HD|TB-880HD|TB-790HD|TB-780HD|TB-770HD|TB-721HD|TB-710HD|TB-434HD|TB-860HD|TB-840HD|TB-760HD|TB-750HD|TB-740HD|TB-730HD|TB-722HD|TB-720HD|TB-700HD|TB-500HD|TB-470HD|TB-431HD|TB-430HD|TB-506|TB-504|TB-446|TB-436|TB-416|TB-146SE|TB-126SE',
+        // Avoid detecting 'PLAYSTATION 3' as mobile.
+        'PlaystationTablet' => 'Playstation.*(Portable|Vita)',
+        // http://www.trekstor.de/surftabs.html
+        'TrekstorTablet'    => 'ST10416-1|VT10416-1|ST70408-1|ST702xx-1|ST702xx-2|ST80208|ST97216|ST70104-2|VT10416-2|ST10216-2A|SurfTab',
+        // http://www.pyleaudio.com/Products.aspx?%2fproducts%2fPersonal-Electronics%2fTablets
+        'PyleAudioTablet'   => '\b(PTBL10CEU|PTBL10C|PTBL72BC|PTBL72BCEU|PTBL7CEU|PTBL7C|PTBL92BC|PTBL92BCEU|PTBL9CEU|PTBL9CUK|PTBL9C)\b',
+        // http://www.advandigital.com/index.php?link=content-product&jns=JP001
+        // because of the short codenames we have to include whitespaces to reduce the possible conflicts.
+        'AdvanTablet'       => 'Android.* \b(E3A|T3X|T5C|T5B|T3E|T3C|T3B|T1J|T1F|T2A|T1H|T1i|E1C|T1-E|T5-A|T4|E1-B|T2Ci|T1-B|T1-D|O1-A|E1-A|T1-A|T3A|T4i)\b ',
+        // http://www.danytech.com/category/tablet-pc
+        'DanyTechTablet' => 'Genius Tab G3|Genius Tab S2|Genius Tab Q3|Genius Tab G4|Genius Tab Q4|Genius Tab G-II|Genius TAB GII|Genius TAB GIII|Genius Tab S1',
+        // http://www.galapad.net/product.html
+        'GalapadTablet'     => 'Android.*\bG1\b',
+        // http://www.micromaxinfo.com/tablet/funbook
+        'MicromaxTablet'    => 'Funbook|Micromax.*\b(P250|P560|P360|P362|P600|P300|P350|P500|P275)\b',
+        // http://www.karbonnmobiles.com/products_tablet.php
+        'KarbonnTablet'     => 'Android.*\b(A39|A37|A34|ST8|ST10|ST7|Smart Tab3|Smart Tab2)\b',
+        // http://www.myallfine.com/Products.asp
+        'AllFineTablet'     => 'Fine7 Genius|Fine7 Shine|Fine7 Air|Fine8 Style|Fine9 More|Fine10 Joy|Fine11 Wide',
+        // http://www.proscanvideo.com/products-search.asp?itemClass=TABLET&itemnmbr=
+        'PROSCANTablet'     => '\b(PEM63|PLT1023G|PLT1041|PLT1044|PLT1044G|PLT1091|PLT4311|PLT4311PL|PLT4315|PLT7030|PLT7033|PLT7033D|PLT7035|PLT7035D|PLT7044K|PLT7045K|PLT7045KB|PLT7071KG|PLT7072|PLT7223G|PLT7225G|PLT7777G|PLT7810K|PLT7849G|PLT7851G|PLT7852G|PLT8015|PLT8031|PLT8034|PLT8036|PLT8080K|PLT8082|PLT8088|PLT8223G|PLT8234G|PLT8235G|PLT8816K|PLT9011|PLT9045K|PLT9233G|PLT9735|PLT9760G|PLT9770G)\b',
+        // http://www.yonesnav.com/products/products.php
+        'YONESTablet' => 'BQ1078|BC1003|BC1077|RK9702|BC9730|BC9001|IT9001|BC7008|BC7010|BC708|BC728|BC7012|BC7030|BC7027|BC7026',
+        // http://www.cjshowroom.com/eproducts.aspx?classcode=004001001
+        // China manufacturer makes tablets for different small brands (eg. http://www.zeepad.net/index.html)
+        'ChangJiaTablet'    => 'TPC7102|TPC7103|TPC7105|TPC7106|TPC7107|TPC7201|TPC7203|TPC7205|TPC7210|TPC7708|TPC7709|TPC7712|TPC7110|TPC8101|TPC8103|TPC8105|TPC8106|TPC8203|TPC8205|TPC8503|TPC9106|TPC9701|TPC97101|TPC97103|TPC97105|TPC97106|TPC97111|TPC97113|TPC97203|TPC97603|TPC97809|TPC97205|TPC10101|TPC10103|TPC10106|TPC10111|TPC10203|TPC10205|TPC10503',
+        // http://www.gloryunion.cn/products.asp
+        // http://www.allwinnertech.com/en/apply/mobile.html
+        // http://www.ptcl.com.pk/pd_content.php?pd_id=284 (EVOTAB)
+        // @todo: Softwiner tablets?
+        // aka. Cute or Cool tablets. Not sure yet, must research to avoid collisions.
+        'GUTablet'          => 'TX-A1301|TX-M9002|Q702|kf026', // A12R|D75A|D77|D79|R83|A95|A106C|R15|A75|A76|D71|D72|R71|R73|R77|D82|R85|D92|A97|D92|R91|A10F|A77F|W71F|A78F|W78F|W81F|A97F|W91F|W97F|R16G|C72|C73E|K72|K73|R96G
+        // http://www.pointofview-online.com/showroom.php?shop_mode=product_listing&category_id=118
+        'PointOfViewTablet' => 'TAB-P506|TAB-navi-7-3G-M|TAB-P517|TAB-P-527|TAB-P701|TAB-P703|TAB-P721|TAB-P731N|TAB-P741|TAB-P825|TAB-P905|TAB-P925|TAB-PR945|TAB-PL1015|TAB-P1025|TAB-PI1045|TAB-P1325|TAB-PROTAB[0-9]+|TAB-PROTAB25|TAB-PROTAB26|TAB-PROTAB27|TAB-PROTAB26XL|TAB-PROTAB2-IPS9|TAB-PROTAB30-IPS9|TAB-PROTAB25XXL|TAB-PROTAB26-IPS10|TAB-PROTAB30-IPS10',
+        // http://www.overmax.pl/pl/katalog-produktow,p8/tablety,c14/
+        // @todo: add more tests.
+        'OvermaxTablet'     => 'OV-(SteelCore|NewBase|Basecore|Baseone|Exellen|Quattor|EduTab|Solution|ACTION|BasicTab|TeddyTab|MagicTab|Stream|TB-08|TB-09)',
+        // http://hclmetablet.com/India/index.php
+        'HCLTablet'         => 'HCL.*Tablet|Connect-3G-2.0|Connect-2G-2.0|ME Tablet U1|ME Tablet U2|ME Tablet G1|ME Tablet X1|ME Tablet Y2|ME Tablet Sync',
+        // http://www.edigital.hu/Tablet_es_e-book_olvaso/Tablet-c18385.html
+        'DPSTablet'         => 'DPS Dream 9|DPS Dual 7',
+        // http://www.visture.com/index.asp
+        'VistureTablet'     => 'V97 HD|i75 3G|Visture V4( HD)?|Visture V5( HD)?|Visture V10',
+        // http://www.mijncresta.nl/tablet
+        'CrestaTablet'     => 'CTP(-)?810|CTP(-)?818|CTP(-)?828|CTP(-)?838|CTP(-)?888|CTP(-)?978|CTP(-)?980|CTP(-)?987|CTP(-)?988|CTP(-)?989',
+        // MediaTek - http://www.mediatek.com/_en/01_products/02_proSys.php?cata_sn=1&cata1_sn=1&cata2_sn=309
+        'MediatekTablet' => '\bMT8125|MT8389|MT8135|MT8377\b',
+        // Concorde tab
+        'ConcordeTablet' => 'Concorde([ ]+)?Tab|ConCorde ReadMan',
+        // GoClever Tablets - http://www.goclever.com/uk/products,c1/tablet,c5/
+        'GoCleverTablet' => 'GOCLEVER TAB|A7GOCLEVER|M1042|M7841|M742|R1042BK|R1041|TAB A975|TAB A7842|TAB A741|TAB A741L|TAB M723G|TAB M721|TAB A1021|TAB I921|TAB R721|TAB I720|TAB T76|TAB R70|TAB R76.2|TAB R106|TAB R83.2|TAB M813G|TAB I721|GCTA722|TAB I70|TAB I71|TAB S73|TAB R73|TAB R74|TAB R93|TAB R75|TAB R76.1|TAB A73|TAB A93|TAB A93.2|TAB T72|TAB R83|TAB R974|TAB R973|TAB A101|TAB A103|TAB A104|TAB A104.2|R105BK|M713G|A972BK|TAB A971|TAB R974.2|TAB R104|TAB R83.3|TAB A1042',
+        // Modecom Tablets - http://www.modecom.eu/tablets/portal/
+        'ModecomTablet' => 'FreeTAB 9000|FreeTAB 7.4|FreeTAB 7004|FreeTAB 7800|FreeTAB 2096|FreeTAB 7.5|FreeTAB 1014|FreeTAB 1001 |FreeTAB 8001|FreeTAB 9706|FreeTAB 9702|FreeTAB 7003|FreeTAB 7002|FreeTAB 1002|FreeTAB 7801|FreeTAB 1331|FreeTAB 1004|FreeTAB 8002|FreeTAB 8014|FreeTAB 9704|FreeTAB 1003',
+        // Vonino Tablets - http://www.vonino.eu/tablets
+        'VoninoTablet'  => '\b(Argus[ _]?S|Diamond[ _]?79HD|Emerald[ _]?78E|Luna[ _]?70C|Onyx[ _]?S|Onyx[ _]?Z|Orin[ _]?HD|Orin[ _]?S|Otis[ _]?S|SpeedStar[ _]?S|Magnet[ _]?M9|Primus[ _]?94[ _]?3G|Primus[ _]?94HD|Primus[ _]?QS|Android.*\bQ8\b|Sirius[ _]?EVO[ _]?QS|Sirius[ _]?QS|Spirit[ _]?S)\b',
+        // ECS Tablets - http://www.ecs.com.tw/ECSWebSite/Product/Product_Tablet_List.aspx?CategoryID=14&MenuID=107&childid=M_107&LanID=0
+        'ECSTablet'     => 'V07OT2|TM105A|S10OT1|TR10CS1',
+        // Storex Tablets - http://storex.fr/espace_client/support.html
+        // @note: no need to add all the tablet codes since they are guided by the first regex.
+        'StorexTablet'  => 'eZee[_\']?(Tab|Go)[0-9]+|TabLC7|Looney Tunes Tab',
+        // Generic Vodafone tablets.
+        'VodafoneTablet' => 'SmartTab([ ]+)?[0-9]+|SmartTabII10|SmartTabII7',
+        // French tablets - Essentiel B http://www.boulanger.fr/tablette_tactile_e-book/tablette_tactile_essentiel_b/cl_68908.htm?multiChoiceToDelete=brand&mc_brand=essentielb
+        // Aka: http://www.essentielb.fr/
+        'EssentielBTablet' => 'Smart[ \']?TAB[ ]+?[0-9]+|Family[ \']?TAB2',
+        // Ross & Moor - http://ross-moor.ru/
+        'RossMoorTablet' => 'RM-790|RM-997|RMD-878G|RMD-974R|RMT-705A|RMT-701|RME-601|RMT-501|RMT-711',
+        // i-mobile http://product.i-mobilephone.com/Mobile_Device
+        'iMobileTablet'        => 'i-mobile i-note',
+        // http://www.tolino.de/de/vergleichen/
+        'TolinoTablet'  => 'tolino tab [0-9.]+|tolino shine',
+        // AudioSonic - a Kmart brand
+        // http://www.kmart.com.au/webapp/wcs/stores/servlet/Search?langId=-1&storeId=10701&catalogId=10001&categoryId=193001&pageSize=72&currentPage=1&searchCategory=193001%2b4294965664&sortBy=p_MaxPrice%7c1
+        'AudioSonicTablet' => '\bC-22Q|T7-QC|T-17B|T-17P\b',
+        // AMPE Tablets - http://www.ampe.com.my/product-category/tablets/
+        // @todo: add them gradually to avoid conflicts.
+        'AMPETablet' => 'Android.* A78 ',
+        // Skk Mobile - http://skkmobile.com.ph/product_tablets.php
+        'SkkTablet' => 'Android.* (SKYPAD|PHOENIX|CYCLOPS)',
+        // Tecno Mobile (only tablet) - http://www.tecno-mobile.com/index.php/product?filterby=smart&list_order=all&page=1
+        'TecnoTablet' => 'TECNO P9',
+        // JXD (consoles & tablets) - http://jxd.hk/products.asp?selectclassid=009008&clsid=3
+        'JXDTablet' => 'Android.*\b(F3000|A3300|JXD5000|JXD3000|JXD2000|JXD300B|JXD300|S5800|S7800|S602b|S5110b|S7300|S5300|S602|S603|S5100|S5110|S601|S7100a|P3000F|P3000s|P101|P200s|P1000m|P200m|P9100|P1000s|S6600b|S908|P1000|P300|S18|S6600|S9100)\b',
+        // i-Joy tablets - http://www.i-joy.es/en/cat/products/tablets/
+        'iJoyTablet' => 'Tablet (Spirit 7|Essentia|Galatea|Fusion|Onix 7|Landa|Titan|Scooby|Deox|Stella|Themis|Argon|Unique 7|Sygnus|Hexen|Finity 7|Cream|Cream X2|Jade|Neon 7|Neron 7|Kandy|Scape|Saphyr 7|Rebel|Biox|Rebel|Rebel 8GB|Myst|Draco 7|Myst|Tab7-004|Myst|Tadeo Jones|Tablet Boing|Arrow|Draco Dual Cam|Aurix|Mint|Amity|Revolution|Finity 9|Neon 9|T9w|Amity 4GB Dual Cam|Stone 4GB|Stone 8GB|Andromeda|Silken|X2|Andromeda II|Halley|Flame|Saphyr 9,7|Touch 8|Planet|Triton|Unique 10|Hexen 10|Memphis 4GB|Memphis 8GB|Onix 10)',
+        // http://www.intracon.eu/tablet
+        'FX2Tablet' => 'FX2 PAD7|FX2 PAD10',
+        // http://www.xoro.de/produkte/
+        // @note: Might be the same brand with 'Simply tablets'
+        'XoroTablet'        => 'KidsPAD 701|PAD[ ]?712|PAD[ ]?714|PAD[ ]?716|PAD[ ]?717|PAD[ ]?718|PAD[ ]?720|PAD[ ]?721|PAD[ ]?722|PAD[ ]?790|PAD[ ]?792|PAD[ ]?900|PAD[ ]?9715D|PAD[ ]?9716DR|PAD[ ]?9718DR|PAD[ ]?9719QR|PAD[ ]?9720QR|TelePAD1030|Telepad1032|TelePAD730|TelePAD731|TelePAD732|TelePAD735Q|TelePAD830|TelePAD9730|TelePAD795|MegaPAD 1331|MegaPAD 1851|MegaPAD 2151',
+        // http://www1.viewsonic.com/products/computing/tablets/
+        'ViewsonicTablet'   => 'ViewPad 10pi|ViewPad 10e|ViewPad 10s|ViewPad E72|ViewPad7|ViewPad E100|ViewPad 7e|ViewSonic VB733|VB100a',
+        // http://www.odys.de/web/internet-tablet_en.html
+        'OdysTablet'        => 'LOOX|XENO10|ODYS[ -](Space|EVO|Xpress|NOON)|\bXELIO\b|Xelio10Pro|XELIO7PHONETAB|XELIO10EXTREME|XELIOPT2|NEO_QUAD10',
+        // http://www.captiva-power.de/products.html#tablets-en
+        'CaptivaTablet'     => 'CAPTIVA PAD',
+        // IconBIT - http://www.iconbit.com/products/tablets/
+        'IconbitTablet' => 'NetTAB|NT-3702|NT-3702S|NT-3702S|NT-3603P|NT-3603P|NT-0704S|NT-0704S|NT-3805C|NT-3805C|NT-0806C|NT-0806C|NT-0909T|NT-0909T|NT-0907S|NT-0907S|NT-0902S|NT-0902S',
+        // http://www.teclast.com/topic.php?channelID=70&topicID=140&pid=63
+        'TeclastTablet' => 'T98 4G|\bP80\b|\bX90HD\b|X98 Air|X98 Air 3G|\bX89\b|P80 3G|\bX80h\b|P98 Air|\bX89HD\b|P98 3G|\bP90HD\b|P89 3G|X98 3G|\bP70h\b|P79HD 3G|G18d 3G|\bP79HD\b|\bP89s\b|\bA88\b|\bP10HD\b|\bP19HD\b|G18 3G|\bP78HD\b|\bA78\b|\bP75\b|G17s 3G|G17h 3G|\bP85t\b|\bP90\b|\bP11\b|\bP98t\b|\bP98HD\b|\bG18d\b|\bP85s\b|\bP11HD\b|\bP88s\b|\bA80HD\b|\bA80se\b|\bA10h\b|\bP89\b|\bP78s\b|\bG18\b|\bP85\b|\bA70h\b|\bA70\b|\bG17\b|\bP18\b|\bA80s\b|\bA11s\b|\bP88HD\b|\bA80h\b|\bP76s\b|\bP76h\b|\bP98\b|\bA10HD\b|\bP78\b|\bP88\b|\bA11\b|\bA10t\b|\bP76a\b|\bP76t\b|\bP76e\b|\bP85HD\b|\bP85a\b|\bP86\b|\bP75HD\b|\bP76v\b|\bA12\b|\bP75a\b|\bA15\b|\bP76Ti\b|\bP81HD\b|\bA10\b|\bT760VE\b|\bT720HD\b|\bP76\b|\bP73\b|\bP71\b|\bP72\b|\bT720SE\b|\bC520Ti\b|\bT760\b|\bT720VE\b|T720-3GE|T720-WiFi',
+        'JaytechTablet'     => 'TPC-PA762',
+        'BlaupunktTablet'   => 'Endeavour 800NG|Endeavour 1010',
+        // http://www.digma.ru/support/download/
+        // @todo: Ebooks also (if requested)
+        'DigmaTablet' => '\b(iDx10|iDx9|iDx8|iDx7|iDxD7|iDxD8|iDsQ8|iDsQ7|iDsQ8|iDsD10|iDnD7|3TS804H|iDsQ11|iDj7|iDs10)\b',
+        // http://www.evolioshop.com/ro/tablete-pc.html
+        // http://www.evolio.ro/support/downloads_static.html?cat=2
+        // @todo: Research some more
+        'EvolioTablet' => 'ARIA_Mini_wifi|Aria[ _]Mini|Evolio X10|Evolio X7|Evolio X8|\bEvotab\b|\bNeura\b',
+        // @todo http://www.lavamobiles.com/tablets-data-cards
+        'LavaTablet' => 'QPAD E704|\bIvoryS\b|E-TAB IVORY',
+        // https://www.celkonmobiles.com/?_a=categoryphones&sid=2
+        'CelkonTablet' => 'CT695|CT888|CT[\s]?910|CT7 Tab|CT9 Tab|CT3 Tab|CT2 Tab|CT1 Tab|C820|C720|\bCT-1\b',
+        // http://www.mi.com/en
+        'MiTablet' => '\bMI PAD\b|\bHM NOTE 1W\b',
+        // http://www.nbru.cn/index.html
+        'NibiruTablet' => 'Nibiru M1|Nibiru Jupiter One',
+        // http://navroad.com/products/produkty/tablety/
+        'NexoTablet' => 'NEXO NOVA|NEXO 10|NEXO AVIO|NEXO FREE|NEXO GO|NEXO EVO|NEXO 3G|NEXO SMART|NEXO KIDDO|NEXO MOBI',
+        // http://www.datawind.com/ubislate/
+        'UbislateTablet' => 'UbiSlate[\s]?7C',
+        // http://www.pocketbook-int.com/ru/support
+        'PocketBookTablet' => 'Pocketbook',
+        // http://www.tesco.com/direct/hudl/
+        'Hudl'              => 'Hudl HT7S3',
+        // http://www.telstra.com.au/home-phone/thub-2/
+        'TelstraTablet'     => 'T-Hub2',
+        'GenericTablet'     => 'Android.*\b97D\b|Tablet(?!.*PC)|BNTV250A|MID-WCDMA|LogicPD Zoom2|\bA7EB\b|CatNova8|A1_07|CT704|CT1002|\bM721\b|rk30sdk|\bEVOTAB\b|M758A|ET904|ALUMIUM10|Smartfren Tab|Endeavour 1010|Tablet-PC-4|Tagi Tab|\bM6pro\b|CT1020W|arc 10HD|\bJolla\b'
+    );
+
+    /**
+     * List of mobile Operating Systems.
+     *
+     * @var array
+     */
+    protected static $operatingSystems = array(
+        'AndroidOS'         => 'Android',
+        'BlackBerryOS'      => 'blackberry|\bBB10\b|rim tablet os',
+        'PalmOS'            => 'PalmOS|avantgo|blazer|elaine|hiptop|palm|plucker|xiino',
+        'SymbianOS'         => 'Symbian|SymbOS|Series60|Series40|SYB-[0-9]+|\bS60\b',
+        // @reference: http://en.wikipedia.org/wiki/Windows_Mobile
+        'WindowsMobileOS'   => 'Windows CE.*(PPC|Smartphone|Mobile|[0-9]{3}x[0-9]{3})|Window Mobile|Windows Phone [0-9.]+|WCE;',
+        // @reference: http://en.wikipedia.org/wiki/Windows_Phone
+        // http://wifeng.cn/?r=blog&a=view&id=106
+        // http://nicksnettravels.builttoroam.com/post/2011/01/10/Bogus-Windows-Phone-7-User-Agent-String.aspx
+        // http://msdn.microsoft.com/library/ms537503.aspx
+        'WindowsPhoneOS'   => 'Windows Phone 8.0|Windows Phone OS|XBLWP7|ZuneWP7|Windows NT 6.[23]; ARM;',
+        'iOS'               => '\biPhone.*Mobile|\biPod|\biPad',
+        // http://en.wikipedia.org/wiki/MeeGo
+        // @todo: research MeeGo in UAs
+        'MeeGoOS'           => 'MeeGo',
+        // http://en.wikipedia.org/wiki/Maemo
+        // @todo: research Maemo in UAs
+        'MaemoOS'           => 'Maemo',
+        'JavaOS'            => 'J2ME/|\bMIDP\b|\bCLDC\b', // '|Java/' produces bug #135
+        'webOS'             => 'webOS|hpwOS',
+        'badaOS'            => '\bBada\b',
+        'BREWOS'            => 'BREW',
+    );
+
+    /**
+     * List of mobile User Agents.
+     *
+     * @var array
+     */
+    protected static $browsers = array(
+        // @reference: https://developers.google.com/chrome/mobile/docs/user-agent
+        'Chrome'          => '\bCrMo\b|CriOS|Android.*Chrome/[.0-9]* (Mobile)?',
+        'Dolfin'          => '\bDolfin\b',
+        'Opera'           => 'Opera.*Mini|Opera.*Mobi|Android.*Opera|Mobile.*OPR/[0-9.]+|Coast/[0-9.]+',
+        'Skyfire'         => 'Skyfire',
+        'IE'              => 'IEMobile|MSIEMobile', // |Trident/[.0-9]+
+        'Firefox'         => 'fennec|firefox.*maemo|(Mobile|Tablet).*Firefox|Firefox.*Mobile',
+        'Bolt'            => 'bolt',
+        'TeaShark'        => 'teashark',
+        'Blazer'          => 'Blazer',
+        // @reference: http://developer.apple.com/library/safari/#documentation/AppleApplications/Reference/SafariWebContent/OptimizingforSafarioniPhone/OptimizingforSafarioniPhone.html#//apple_ref/doc/uid/TP40006517-SW3
+        'Safari'          => 'Version.*Mobile.*Safari|Safari.*Mobile|MobileSafari',
+        // http://en.wikipedia.org/wiki/Midori_(web_browser)
+        //'Midori'          => 'midori',
+        'Tizen'           => 'Tizen',
+        'UCBrowser'       => 'UC.*Browser|UCWEB',
+        'baiduboxapp'     => 'baiduboxapp',
+        'baidubrowser'    => 'baidubrowser',
+        // https://github.com/serbanghita/Mobile-Detect/issues/7
+        'DiigoBrowser'    => 'DiigoBrowser',
+        // http://www.puffinbrowser.com/index.php
+        'Puffin'            => 'Puffin',
+        // http://mercury-browser.com/index.html
+        'Mercury'          => '\bMercury\b',
+        // http://en.wikipedia.org/wiki/Obigo_Browser
+        'ObigoBrowser' => 'Obigo',
+        // http://en.wikipedia.org/wiki/NetFront
+        'NetFront' => 'NF-Browser',
+        // @reference: http://en.wikipedia.org/wiki/Minimo
+        // http://en.wikipedia.org/wiki/Vision_Mobile_Browser
+        'GenericBrowser'  => 'NokiaBrowser|OviBrowser|OneBrowser|TwonkyBeamBrowser|SEMC.*Browser|FlyFlow|Minimo|NetFront|Novarra-Vision|MQQBrowser|MicroMessenger',
+    );
+
+    /**
+     * Utilities.
+     *
+     * @var array
+     */
+    protected static $utilities = array(
+        // Experimental. When a mobile device wants to switch to 'Desktop Mode'.
+        // http://scottcate.com/technology/windows-phone-8-ie10-desktop-or-mobile/
+        // https://github.com/serbanghita/Mobile-Detect/issues/57#issuecomment-15024011
+        'DesktopMode' => 'WPDesktop',
+        'TV'          => 'SonyDTV|HbbTV', // experimental
+        'WebKit'      => '(webkit)[ /]([\w.]+)',
+        'Bot'         => 'Googlebot|YandexBot|bingbot|ia_archiver|AhrefsBot|Ezooms|GSLFbot|WBSearchBot|Twitterbot|TweetmemeBot|Twikle|PaperLiBot|Wotbox|UnwindFetchor|facebookexternalhit',
+        'MobileBot'   => 'Googlebot-Mobile|YahooSeeker/M1A1-R2D2',
+        // @todo: Include JXD consoles.
+        'Console'     => '\b(Nintendo|Nintendo WiiU|Nintendo 3DS|PLAYSTATION|Xbox)\b',
+        'Watch'       => 'SM-V700',
+    );
+
+    /**
+     * All possible HTTP headers that represent the
+     * User-Agent string.
+     *
+     * @var array
+     */
+    protected static $uaHttpHeaders = array(
+        // The default User-Agent string.
+        'HTTP_USER_AGENT',
+        // Header can occur on devices using Opera Mini.
+        'HTTP_X_OPERAMINI_PHONE_UA',
+        // Vodafone specific header: http://www.seoprinciple.com/mobile-web-community-still-angry-at-vodafone/24/
+        'HTTP_X_DEVICE_USER_AGENT',
+        'HTTP_X_ORIGINAL_USER_AGENT',
+        'HTTP_X_SKYFIRE_PHONE',
+        'HTTP_X_BOLT_PHONE_UA',
+        'HTTP_DEVICE_STOCK_UA',
+        'HTTP_X_UCBROWSER_DEVICE_UA'
+    );
+
+    /**
+     * The individual segments that could exist in a User-Agent string. VER refers to the regular
+     * expression defined in the constant self::VER.
+     *
+     * @var array
+     */
+    protected static $properties = array(
+
+        // Build
+        'Mobile'        => 'Mobile/[VER]',
+        'Build'         => 'Build/[VER]',
+        'Version'       => 'Version/[VER]',
+        'VendorID'      => 'VendorID/[VER]',
+
+        // Devices
+        'iPad'          => 'iPad.*CPU[a-z ]+[VER]',
+        'iPhone'        => 'iPhone.*CPU[a-z ]+[VER]',
+        'iPod'          => 'iPod.*CPU[a-z ]+[VER]',
+        //'BlackBerry'    => array('BlackBerry[VER]', 'BlackBerry [VER];'),
+        'Kindle'        => 'Kindle/[VER]',
+
+        // Browser
+        'Chrome'        => array('Chrome/[VER]', 'CriOS/[VER]', 'CrMo/[VER]'),
+        'Coast'         => array('Coast/[VER]'),
+        'Dolfin'        => 'Dolfin/[VER]',
+        // @reference: https://developer.mozilla.org/en-US/docs/User_Agent_Strings_Reference
+        'Firefox'       => 'Firefox/[VER]',
+        'Fennec'        => 'Fennec/[VER]',
+        // @reference: http://msdn.microsoft.com/en-us/library/ms537503(v=vs.85).aspx
+        'IE'      => array('IEMobile/[VER];', 'IEMobile [VER]', 'MSIE [VER];'),
+        // http://en.wikipedia.org/wiki/NetFront
+        'NetFront'      => 'NetFront/[VER]',
+        'NokiaBrowser'  => 'NokiaBrowser/[VER]',
+        'Opera'         => array( ' OPR/[VER]', 'Opera Mini/[VER]', 'Version/[VER]' ),
+        'Opera Mini'    => 'Opera Mini/[VER]',
+        'Opera Mobi'    => 'Version/[VER]',
+        'UC Browser'    => 'UC Browser[VER]',
+        'MQQBrowser'    => 'MQQBrowser/[VER]',
+        'MicroMessenger' => 'MicroMessenger/[VER]',
+        'baiduboxapp'   => 'baiduboxapp/[VER]',
+        'baidubrowser'  => 'baidubrowser/[VER]',
+        'Iron'          => 'Iron/[VER]',
+        // @note: Safari 7534.48.3 is actually Version 5.1.
+        // @note: On BlackBerry the Version is overwriten by the OS.
+        'Safari'        => array( 'Version/[VER]', 'Safari/[VER]' ),
+        'Skyfire'       => 'Skyfire/[VER]',
+        'Tizen'         => 'Tizen/[VER]',
+        'Webkit'        => 'webkit[ /][VER]',
+
+        // Engine
+        'Gecko'         => 'Gecko/[VER]',
+        'Trident'       => 'Trident/[VER]',
+        'Presto'        => 'Presto/[VER]',
+
+        // OS
+        'iOS'              => ' \bOS\b [VER] ',
+        'Android'          => 'Android [VER]',
+        'BlackBerry'       => array('BlackBerry[\w]+/[VER]', 'BlackBerry.*Version/[VER]', 'Version/[VER]'),
+        'BREW'             => 'BREW [VER]',
+        'Java'             => 'Java/[VER]',
+        // @reference: http://windowsteamblog.com/windows_phone/b/wpdev/archive/2011/08/29/introducing-the-ie9-on-windows-phone-mango-user-agent-string.aspx
+        // @reference: http://en.wikipedia.org/wiki/Windows_NT#Releases
+        'Windows Phone OS' => array( 'Windows Phone OS [VER]', 'Windows Phone [VER]'),
+        'Windows Phone'    => 'Windows Phone [VER]',
+        'Windows CE'       => 'Windows CE/[VER]',
+        // http://social.msdn.microsoft.com/Forums/en-US/windowsdeveloperpreviewgeneral/thread/6be392da-4d2f-41b4-8354-8dcee20c85cd
+        'Windows NT'       => 'Windows NT [VER]',
+        'Symbian'          => array('SymbianOS/[VER]', 'Symbian/[VER]'),
+        'webOS'            => array('webOS/[VER]', 'hpwOS/[VER];'),
+    );
+
+    /**
+     * Construct an instance of this class.
+     *
+     * @param array  $headers   Specify the headers as injection. Should be PHP _SERVER flavored.
+     *                          If left empty, will use the global _SERVER['HTTP_*'] vars instead.
+     * @param string $userAgent Inject the User-Agent header. If null, will use HTTP_USER_AGENT
+     *                          from the $headers array instead.
+     */
+    public function __construct(
+        array $headers = null,
+        $userAgent = null
+    ) {
+        $this->setHttpHeaders($headers);
+        $this->setUserAgent($userAgent);
+    }
+
+    /**
+     * Get the current script version.
+     * This is useful for the demo.php file,
+     * so people can check on what version they are testing
+     * for mobile devices.
+     *
+     * @return string The version number in semantic version format.
+     */
+    public static function getScriptVersion()
+    {
+        return self::VERSION;
+    }
+
+    /**
+     * Set the HTTP Headers. Must be PHP-flavored. This method will reset existing headers.
+     *
+     * @param array $httpHeaders The headers to set. If null, then using PHP's _SERVER to extract
+     *                           the headers. The default null is left for backwards compatibilty.
+     */
+    public function setHttpHeaders($httpHeaders = null)
+    {
+        //use global _SERVER if $httpHeaders aren't defined
+        if (!is_array($httpHeaders) || !count($httpHeaders)) {
+            $httpHeaders = $_SERVER;
+        }
+
+        //clear existing headers
+        $this->httpHeaders = array();
+
+        //Only save HTTP headers. In PHP land, that means only _SERVER vars that
+        //start with HTTP_.
+        foreach ($httpHeaders as $key => $value) {
+            if (substr($key,0,5) == 'HTTP_') {
+                $this->httpHeaders[$key] = $value;
+            }
+        }
+    }
+
+    /**
+     * Retrieves the HTTP headers.
+     *
+     * @return array
+     */
+    public function getHttpHeaders()
+    {
+        return $this->httpHeaders;
+    }
+
+    /**
+     * Retrieves a particular header. If it doesn't exist, no exception/error is caused.
+     * Simply null is returned.
+     *
+     * @param string $header The name of the header to retrieve. Can be HTTP compliant such as
+     *                       "User-Agent" or "X-Device-User-Agent" or can be php-esque with the
+     *                       all-caps, HTTP_ prefixed, underscore seperated awesomeness.
+     *
+     * @return string|null The value of the header.
+     */
+    public function getHttpHeader($header)
+    {
+        //are we using PHP-flavored headers?
+        if (strpos($header, '_') === false) {
+            $header = str_replace('-', '_', $header);
+            $header = strtoupper($header);
+        }
+
+        //test the alternate, too
+        $altHeader = 'HTTP_' . $header;
+
+        //Test both the regular and the HTTP_ prefix
+        if (isset($this->httpHeaders[$header])) {
+            return $this->httpHeaders[$header];
+        } elseif (isset($this->httpHeaders[$altHeader])) {
+            return $this->httpHeaders[$altHeader];
+        }
+
+        return null;
+    }
+
+    public function getMobileHeaders()
+    {
+        return self::$mobileHeaders;
+    }
+
+    /**
+     * Get all possible HTTP headers that
+     * can contain the User-Agent string.
+     *
+     * @return array List of HTTP headers.
+     */
+    public function getUaHttpHeaders()
+    {
+        return self::$uaHttpHeaders;
+    }
+
+    /**
+     * Set the User-Agent to be used.
+     *
+     * @param string $userAgent The user agent string to set.
+     *
+     * @return string|null
+     */
+    public function setUserAgent($userAgent = null)
+    {
+        if (!empty($userAgent)) {
+            return $this->userAgent = $userAgent;
+        } else {
+            $this->userAgent = null;
+            foreach ($this->getUaHttpHeaders() as $altHeader) {
+                if (!empty($this->httpHeaders[$altHeader])) { // @todo: should use getHttpHeader(), but it would be slow. (Serban)
+                    $this->userAgent .= $this->httpHeaders[$altHeader] . " ";
+                }
+            }
+
+            return $this->userAgent = (!empty($this->userAgent) ? trim($this->userAgent) : null);
+
+        }
+    }
+
+    /**
+     * Retrieve the User-Agent.
+     *
+     * @return string|null The user agent if it's set.
+     */
+    public function getUserAgent()
+    {
+        return $this->userAgent;
+    }
+
+    /**
+     * Set the detection type. Must be one of self::DETECTION_TYPE_MOBILE or
+     * self::DETECTION_TYPE_EXTENDED. Otherwise, nothing is set.
+     *
+     * @deprecated since version 2.6.9
+     *
+     * @param string $type The type. Must be a self::DETECTION_TYPE_* constant. The default
+     *                     parameter is null which will default to self::DETECTION_TYPE_MOBILE.
+     */
+    public function setDetectionType($type = null)
+    {
+        if ($type === null) {
+            $type = self::DETECTION_TYPE_MOBILE;
+        }
+
+        if ($type != self::DETECTION_TYPE_MOBILE && $type != self::DETECTION_TYPE_EXTENDED) {
+            return;
+        }
+
+        $this->detectionType = $type;
+    }
+
+    public function getMatchingRegex()
+    {
+        return $this->matchingRegex;
+    }
+
+    public function getMatchesArray()
+    {
+        return $this->matchesArray;
+    }
+
+    /**
+     * Retrieve the list of known phone devices.
+     *
+     * @return array List of phone devices.
+     */
+    public static function getPhoneDevices()
+    {
+        return self::$phoneDevices;
+    }
+
+    /**
+     * Retrieve the list of known tablet devices.
+     *
+     * @return array List of tablet devices.
+     */
+    public static function getTabletDevices()
+    {
+        return self::$tabletDevices;
+    }
+
+    /**
+     * Alias for getBrowsers() method.
+     *
+     * @return array List of user agents.
+     */
+    public static function getUserAgents()
+    {
+        return self::getBrowsers();
+    }
+
+    /**
+     * Retrieve the list of known browsers. Specifically, the user agents.
+     *
+     * @return array List of browsers / user agents.
+     */
+    public static function getBrowsers()
+    {
+        return self::$browsers;
+    }
+
+    /**
+     * Retrieve the list of known utilities.
+     *
+     * @return array List of utilities.
+     */
+    public static function getUtilities()
+    {
+        return self::$utilities;
+    }
+
+    /**
+     * Method gets the mobile detection rules. This method is used for the magic methods $detect->is*().
+     *
+     * @deprecated since version 2.6.9
+     *
+     * @return array All the rules (but not extended).
+     */
+    public static function getMobileDetectionRules()
+    {
+        static $rules;
+
+        if (!$rules) {
+            $rules = array_merge(
+                self::$phoneDevices,
+                self::$tabletDevices,
+                self::$operatingSystems,
+                self::$browsers
+            );
+        }
+
+        return $rules;
+
+    }
+
+    /**
+     * Method gets the mobile detection rules + utilities.
+     * The reason this is separate is because utilities rules
+     * don't necessary imply mobile. This method is used inside
+     * the new $detect->is('stuff') method.
+     *
+     * @deprecated since version 2.6.9
+     *
+     * @return array All the rules + extended.
+     */
+    public function getMobileDetectionRulesExtended()
+    {
+        static $rules;
+
+        if (!$rules) {
+            // Merge all rules together.
+            $rules = array_merge(
+                self::$phoneDevices,
+                self::$tabletDevices,
+                self::$operatingSystems,
+                self::$browsers,
+                self::$utilities
+            );
+        }
+
+        return $rules;
+    }
+
+    /**
+     * Retrieve the current set of rules.
+     *
+     * @deprecated since version 2.6.9
+     *
+     * @return array
+     */
+    public function getRules()
+    {
+        if ($this->detectionType == self::DETECTION_TYPE_EXTENDED) {
+            return self::getMobileDetectionRulesExtended();
+        } else {
+            return self::getMobileDetectionRules();
+        }
+    }
+
+    /**
+     * Retrieve the list of mobile operating systems.
+     *
+     * @return array The list of mobile operating systems.
+     */
+    public static function getOperatingSystems()
+    {
+        return self::$operatingSystems;
+    }
+
+    /**
+     * Check the HTTP headers for signs of mobile.
+     * This is the fastest mobile check possible; it's used
+     * inside isMobile() method.
+     *
+     * @return bool
+     */
+    public function checkHttpHeadersForMobile()
+    {
+
+        foreach ($this->getMobileHeaders() as $mobileHeader => $matchType) {
+            if ( isset($this->httpHeaders[$mobileHeader]) ) {
+                if ( is_array($matchType['matches']) ) {
+                    foreach ($matchType['matches'] as $_match) {
+                        if ( strpos($this->httpHeaders[$mobileHeader], $_match) !== false ) {
+                            return true;
+                        }
+                    }
+
+                    return false;
+                } else {
+                    return true;
+                }
+            }
+        }
+
+        return false;
+
+    }
+
+    /**
+     * Magic overloading method.
+     *
+     * @method boolean is[...]()
+     * @param  string                 $name
+     * @param  array                  $arguments
+     * @return mixed
+     * @throws BadMethodCallException when the method doesn't exist and doesn't start with 'is'
+     */
+    public function __call($name, $arguments)
+    {
+        //make sure the name starts with 'is', otherwise
+        if (substr($name, 0, 2) != 'is') {
+            throw new BadMethodCallException("No such method exists: $name");
+        }
+
+        $this->setDetectionType(self::DETECTION_TYPE_MOBILE);
+
+        $key = substr($name, 2);
+
+        return $this->matchUAAgainstKey($key);
+    }
+
+    /**
+     * Find a detection rule that matches the current User-agent.
+     *
+     * @param null $userAgent deprecated
+     * @return boolean
+     */
+    protected function matchDetectionRulesAgainstUA($userAgent = null)
+    {
+        // Begin general search.
+        foreach ($this->getRules() as $_regex) {
+            if (empty($_regex)) {
+                continue;
+            }
+            if ($this->match($_regex, $userAgent)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Search for a certain key in the rules array.
+     * If the key is found the try to match the corresponding
+     * regex agains the User-Agent.
+     *
+     * @param string $key
+     * @param null $userAgent deprecated
+     * @return mixed
+     */
+    protected function matchUAAgainstKey($key, $userAgent = null)
+    {
+        // Make the keys lowercase so we can match: isIphone(), isiPhone(), isiphone(), etc.
+        $key = strtolower($key);
+
+        //change the keys to lower case
+        $_rules = array_change_key_case($this->getRules());
+
+        if (array_key_exists($key, $_rules)) {
+            if (empty($_rules[$key])) {
+                return null;
+            }
+
+            return $this->match($_rules[$key], $userAgent);
+        }
+
+        return false;
+    }
+
+    /**
+     * Check if the device is mobile.
+     * Returns true if any type of mobile device detected, including special ones
+     * @param null $userAgent deprecated
+     * @param null $httpHeaders deprecated
+     * @return bool
+     */
+    public function isMobile($userAgent = null, $httpHeaders = null)
+    {
+
+        if ($httpHeaders) {
+            $this->setHttpHeaders($httpHeaders);
+        }
+
+        if ($userAgent) {
+            $this->setUserAgent($userAgent);
+        }
+
+        $this->setDetectionType(self::DETECTION_TYPE_MOBILE);
+
+        if ($this->checkHttpHeadersForMobile()) {
+            return true;
+        } else {
+            return $this->matchDetectionRulesAgainstUA();
+        }
+
+    }
+
+    /**
+     * Check if the device is a tablet.
+     * Return true if any type of tablet device is detected.
+     *
+     * @param  string $userAgent   deprecated
+     * @param  array  $httpHeaders deprecated
+     * @return bool
+     */
+    public function isTablet($userAgent = null, $httpHeaders = null)
+    {
+        $this->setDetectionType(self::DETECTION_TYPE_MOBILE);
+
+        foreach (self::$tabletDevices as $_regex) {
+            if ($this->match($_regex, $userAgent)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * This method checks for a certain property in the
+     * userAgent.
+     * @todo: The httpHeaders part is not yet used.
+     *
+     * @param string $key
+     * @param string        $userAgent   deprecated
+     * @param string        $httpHeaders deprecated
+     * @return bool|int|null
+     */
+    public function is($key, $userAgent = null, $httpHeaders = null)
+    {
+        // Set the UA and HTTP headers only if needed (eg. batch mode).
+        if ($httpHeaders) {
+            $this->setHttpHeaders($httpHeaders);
+        }
+
+        if ($userAgent) {
+            $this->setUserAgent($userAgent);
+        }
+
+        $this->setDetectionType(self::DETECTION_TYPE_EXTENDED);
+
+        return $this->matchUAAgainstKey($key);
+    }
+
+    /**
+     * Some detection rules are relative (not standard),
+     * because of the diversity of devices, vendors and
+     * their conventions in representing the User-Agent or
+     * the HTTP headers.
+     *
+     * This method will be used to check custom regexes against
+     * the User-Agent string.
+     *
+     * @param $regex
+     * @param  string $userAgent
+     * @return bool
+     *
+     * @todo: search in the HTTP headers too.
+     */
+    public function match($regex, $userAgent = null)
+    {
+        // Escape the special character which is the delimiter.
+        $regex = str_replace('/', '\/', $regex);
+        $match = (bool) preg_match('/'.$regex.'/is', (!empty($userAgent) ? $userAgent : $this->userAgent), $matches);
+        // If positive match is found, store the results for debug.
+        if ($match) {
+            $this->matchingRegex = $regex;
+            $this->matchesArray = $matches;
+        }
+
+        return $match;
+    }
+
+    /**
+     * Get the properties array.
+     *
+     * @return array
+     */
+    public static function getProperties()
+    {
+        return self::$properties;
+    }
+
+    /**
+     * Prepare the version number.
+     *
+     * @todo Remove the error supression from str_replace() call.
+     *
+     * @param string $ver The string version, like "2.6.21.2152";
+     *
+     * @return float
+     */
+    public function prepareVersionNo($ver)
+    {
+        $ver = str_replace(array('_', ' ', '/'), '.', $ver);
+        $arrVer = explode('.', $ver, 2);
+
+        if (isset($arrVer[1])) {
+            $arrVer[1] = @str_replace('.', '', $arrVer[1]); // @todo: treat strings versions.
+        }
+
+        return (float) implode('.', $arrVer);
+    }
+
+    /**
+     * Check the version of the given property in the User-Agent.
+     * Will return a float number. (eg. 2_0 will return 2.0, 4.3.1 will return 4.31)
+     *
+     * @param string $propertyName The name of the property. See self::getProperties() array
+     *                             keys for all possible properties.
+     * @param string $type         Either self::VERSION_TYPE_STRING to get a string value or
+     *                             self::VERSION_TYPE_FLOAT indicating a float value. This parameter
+     *                             is optional and defaults to self::VERSION_TYPE_STRING. Passing an
+     *                             invalid parameter will default to the this type as well.
+     *
+     * @return string|float The version of the property we are trying to extract.
+     */
+    public function version($propertyName, $type = self::VERSION_TYPE_STRING)
+    {
+        if (empty($propertyName)) {
+            return false;
+        }
+
+        //set the $type to the default if we don't recognize the type
+        if ($type != self::VERSION_TYPE_STRING && $type != self::VERSION_TYPE_FLOAT) {
+            $type = self::VERSION_TYPE_STRING;
+        }
+
+        $properties = self::getProperties();
+
+        // Check if the property exists in the properties array.
+        if (array_key_exists($propertyName, $properties)) {
+
+            // Prepare the pattern to be matched.
+            // Make sure we always deal with an array (string is converted).
+            $properties[$propertyName] = (array) $properties[$propertyName];
+
+            foreach ($properties[$propertyName] as $propertyMatchString) {
+
+                $propertyPattern = str_replace('[VER]', self::VER, $propertyMatchString);
+
+                // Escape the special character which is the delimiter.
+                $propertyPattern = str_replace('/', '\/', $propertyPattern);
+
+                // Identify and extract the version.
+                preg_match('/'.$propertyPattern.'/is', $this->userAgent, $match);
+
+                if (!empty($match[1])) {
+                    $version = ( $type == self::VERSION_TYPE_FLOAT ? $this->prepareVersionNo($match[1]) : $match[1] );
+
+                    return $version;
+                }
+
+            }
+
+        }
+
+        return false;
+    }
+
+    /**
+     * Retrieve the mobile grading, using self::MOBILE_GRADE_* constants.
+     *
+     * @return string One of the self::MOBILE_GRADE_* constants.
+     */
+    public function mobileGrade()
+    {
+        $isMobile = $this->isMobile();
+
+        if (
+            // Apple iOS 4-7.0 – Tested on the original iPad (4.3 / 5.0), iPad 2 (4.3 / 5.1 / 6.1), iPad 3 (5.1 / 6.0), iPad Mini (6.1), iPad Retina (7.0), iPhone 3GS (4.3), iPhone 4 (4.3 / 5.1), iPhone 4S (5.1 / 6.0), iPhone 5 (6.0), and iPhone 5S (7.0)
+            $this->isIOS() && $this->version('iPad', self::VERSION_TYPE_FLOAT)>=4.3 ||
+            $this->isIOS() && $this->version('iPhone', self::VERSION_TYPE_FLOAT)>=4.3 ||
+            $this->isIOS() && $this->version('iPod', self::VERSION_TYPE_FLOAT)>=4.3 ||
+
+            // Android 2.1-2.3 - Tested on the HTC Incredible (2.2), original Droid (2.2), HTC Aria (2.1), Google Nexus S (2.3). Functional on 1.5 & 1.6 but performance may be sluggish, tested on Google G1 (1.5)
+            // Android 3.1 (Honeycomb)  - Tested on the Samsung Galaxy Tab 10.1 and Motorola XOOM
+            // Android 4.0 (ICS)  - Tested on a Galaxy Nexus. Note: transition performance can be poor on upgraded devices
+            // Android 4.1 (Jelly Bean)  - Tested on a Galaxy Nexus and Galaxy 7
+            ( $this->version('Android', self::VERSION_TYPE_FLOAT)>2.1 && $this->is('Webkit') ) ||
+
+            // Windows Phone 7.5-8 - Tested on the HTC Surround (7.5), HTC Trophy (7.5), LG-E900 (7.5), Nokia 800 (7.8), HTC Mazaa (7.8), Nokia Lumia 520 (8), Nokia Lumia 920 (8), HTC 8x (8)
+            $this->version('Windows Phone OS', self::VERSION_TYPE_FLOAT)>=7.5 ||
+
+            // Tested on the Torch 9800 (6) and Style 9670 (6), BlackBerry® Torch 9810 (7), BlackBerry Z10 (10)
+            $this->is('BlackBerry') && $this->version('BlackBerry', self::VERSION_TYPE_FLOAT)>=6.0 ||
+            // Blackberry Playbook (1.0-2.0) - Tested on PlayBook
+            $this->match('Playbook.*Tablet') ||
+
+            // Palm WebOS (1.4-3.0) - Tested on the Palm Pixi (1.4), Pre (1.4), Pre 2 (2.0), HP TouchPad (3.0)
+            ( $this->version('webOS', self::VERSION_TYPE_FLOAT)>=1.4 && $this->match('Palm|Pre|Pixi') ) ||
+            // Palm WebOS 3.0  - Tested on HP TouchPad
+            $this->match('hp.*TouchPad') ||
+
+            // Firefox Mobile 18 - Tested on Android 2.3 and 4.1 devices
+            ( $this->is('Firefox') && $this->version('Firefox', self::VERSION_TYPE_FLOAT)>=18 ) ||
+
+            // Chrome for Android - Tested on Android 4.0, 4.1 device
+            ( $this->is('Chrome') && $this->is('AndroidOS') && $this->version('Android', self::VERSION_TYPE_FLOAT)>=4.0 ) ||
+
+            // Skyfire 4.1 - Tested on Android 2.3 device
+            ( $this->is('Skyfire') && $this->version('Skyfire', self::VERSION_TYPE_FLOAT)>=4.1 && $this->is('AndroidOS') && $this->version('Android', self::VERSION_TYPE_FLOAT)>=2.3 ) ||
+
+            // Opera Mobile 11.5-12: Tested on Android 2.3
+            ( $this->is('Opera') && $this->version('Opera Mobi', self::VERSION_TYPE_FLOAT)>=11.5 && $this->is('AndroidOS') ) ||
+
+            // Meego 1.2 - Tested on Nokia 950 and N9
+            $this->is('MeeGoOS') ||
+
+            // Tizen (pre-release) - Tested on early hardware
+            $this->is('Tizen') ||
+
+            // Samsung Bada 2.0 - Tested on a Samsung Wave 3, Dolphin browser
+            // @todo: more tests here!
+            $this->is('Dolfin') && $this->version('Bada', self::VERSION_TYPE_FLOAT)>=2.0 ||
+
+            // UC Browser - Tested on Android 2.3 device
+            ( ($this->is('UC Browser') || $this->is('Dolfin')) && $this->version('Android', self::VERSION_TYPE_FLOAT)>=2.3 ) ||
+
+            // Kindle 3 and Fire  - Tested on the built-in WebKit browser for each
+            ( $this->match('Kindle Fire') ||
+            $this->is('Kindle') && $this->version('Kindle', self::VERSION_TYPE_FLOAT)>=3.0 ) ||
+
+            // Nook Color 1.4.1 - Tested on original Nook Color, not Nook Tablet
+            $this->is('AndroidOS') && $this->is('NookTablet') ||
+
+            // Chrome Desktop 16-24 - Tested on OS X 10.7 and Windows 7
+            $this->version('Chrome', self::VERSION_TYPE_FLOAT)>=16 && !$isMobile ||
+
+            // Safari Desktop 5-6 - Tested on OS X 10.7 and Windows 7
+            $this->version('Safari', self::VERSION_TYPE_FLOAT)>=5.0 && !$isMobile ||
+
+            // Firefox Desktop 10-18 - Tested on OS X 10.7 and Windows 7
+            $this->version('Firefox', self::VERSION_TYPE_FLOAT)>=10.0 && !$isMobile ||
+
+            // Internet Explorer 7-9 - Tested on Windows XP, Vista and 7
+            $this->version('IE', self::VERSION_TYPE_FLOAT)>=7.0 && !$isMobile ||
+
+            // Opera Desktop 10-12 - Tested on OS X 10.7 and Windows 7
+            $this->version('Opera', self::VERSION_TYPE_FLOAT)>=10 && !$isMobile
+        ){
+            return self::MOBILE_GRADE_A;
+        }
+
+        if (
+            $this->isIOS() && $this->version('iPad', self::VERSION_TYPE_FLOAT)<4.3 ||
+            $this->isIOS() && $this->version('iPhone', self::VERSION_TYPE_FLOAT)<4.3 ||
+            $this->isIOS() && $this->version('iPod', self::VERSION_TYPE_FLOAT)<4.3 ||
+
+            // Blackberry 5.0: Tested on the Storm 2 9550, Bold 9770
+            $this->is('Blackberry') && $this->version('BlackBerry', self::VERSION_TYPE_FLOAT)>=5 && $this->version('BlackBerry', self::VERSION_TYPE_FLOAT)<6 ||
+
+            //Opera Mini (5.0-6.5) - Tested on iOS 3.2/4.3 and Android 2.3
+            ($this->version('Opera Mini', self::VERSION_TYPE_FLOAT)>=5.0 && $this->version('Opera Mini', self::VERSION_TYPE_FLOAT)<=7.0 &&
+            ($this->version('Android', self::VERSION_TYPE_FLOAT)>=2.3 || $this->is('iOS')) ) ||
+
+            // Nokia Symbian^3 - Tested on Nokia N8 (Symbian^3), C7 (Symbian^3), also works on N97 (Symbian^1)
+            $this->match('NokiaN8|NokiaC7|N97.*Series60|Symbian/3') ||
+
+            // @todo: report this (tested on Nokia N71)
+            $this->version('Opera Mobi', self::VERSION_TYPE_FLOAT)>=11 && $this->is('SymbianOS')
+        ){
+            return self::MOBILE_GRADE_B;
+        }
+
+        if (
+            // Blackberry 4.x - Tested on the Curve 8330
+            $this->version('BlackBerry', self::VERSION_TYPE_FLOAT)<=5.0 ||
+            // Windows Mobile - Tested on the HTC Leo (WinMo 5.2)
+            $this->match('MSIEMobile|Windows CE.*Mobile') || $this->version('Windows Mobile', self::VERSION_TYPE_FLOAT)<=5.2 ||
+
+            // Tested on original iPhone (3.1), iPhone 3 (3.2)
+            $this->isIOS() && $this->version('iPad', self::VERSION_TYPE_FLOAT)<=3.2 ||
+            $this->isIOS() && $this->version('iPhone', self::VERSION_TYPE_FLOAT)<=3.2 ||
+            $this->isIOS() && $this->version('iPod', self::VERSION_TYPE_FLOAT)<=3.2 ||
+
+            // Internet Explorer 7 and older - Tested on Windows XP
+            $this->version('IE', self::VERSION_TYPE_FLOAT)<=7.0 && !$isMobile
+        ){
+            return self::MOBILE_GRADE_C;
+        }
+
+        //All older smartphone platforms and featurephones - Any device that doesn't support media queries
+        //will receive the basic, C grade experience.
+        return self::MOBILE_GRADE_C;
+    }
+}
diff --git a/library/Mobile_Detect/README.md b/library/Mobile_Detect/README.md
new file mode 100644
index 0000000000..db46648e63
--- /dev/null
+++ b/library/Mobile_Detect/README.md
@@ -0,0 +1,219 @@
+[![Build Status](https://travis-ci.org/serbanghita/Mobile-Detect.svg?branch=devel)](https://travis-ci.org/serbanghita/Mobile-Detect) [![Latest Stable Version](https://poser.pugx.org/mobiledetect/mobiledetectlib/v/stable.svg)](https://packagist.org/packages/mobiledetect/mobiledetectlib) [![Total Downloads](https://poser.pugx.org/mobiledetect/mobiledetectlib/downloads.svg)](https://packagist.org/packages/mobiledetect/mobiledetectlib) [![Daily Downloads](https://poser.pugx.org/mobiledetect/mobiledetectlib/d/daily.png)](https://packagist.org/packages/mobiledetect/mobiledetectlib) [![License](https://poser.pugx.org/mobiledetect/mobiledetectlib/license.svg)](https://packagist.org/packages/mobiledetect/mobiledetectlib)
+[![Gitter](https://badges.gitter.im/Join Chat.svg)](https://gitter.im/serbanghita/Mobile-Detect?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
+
+![Mobile Detect](http://demo.mobiledetect.net/logo-github.png)
+
+> Motto: "Every business should have a mobile detection script to detect mobile readers."
+
+<i>Mobile_Detect is a lightweight PHP class for detecting mobile devices (including tablets).
+It uses the User-Agent string combined with specific HTTP headers to detect the mobile environment.</i>
+
+> We're commited to make Mobile_Detect the best open-source mobile detection resource and this is why before each release we're running [unit tests](./tests), we also research and update the detection rules on <b>daily</b> and <b>weekly</b> basis.
+
+Your website's _content strategy_ is important! You need a complete toolkit to deliver an experience that is  _optimized_, _fast_ and _relevant_ to your users. Mobile_Detect class is a [server-side detection](http://www.w3.org/TR/mwabp/#bp-devcap-detection) tool that can help you with your RWD strategy, it is not a replacement for CSS3 media queries or other forms of client-side feature detection.
+
+##### This month updates
+
+First of all a **BIG THANK YOU** to our growing community for your continuous support and for all the feedback received! I'm still working my way with the current issues and all the emails. 
+
+Nick is almost done with all the code for the upcoming `3.0.0` so that I only have to integrate the new parsing engine. We will release minor `2.8.xx` versions until a feature freeze where we will switch to the new branch. You will all be announced before this and hopefully we can make the transition smooth for everyone.
+
+<a href="http://trycatch.us/"><img align="left" src="http://assets.mobiledetect.net/img/try_catch_logo_80px.jpg" hspace="20"></a> Last but not least, special thanks for supporting us to our friends from [TryCatch.us](http://trycatch.us/) who _are set to carefully curate the most talented developers in Europe_!
+
+Thank you all and we're excited for the new release!
+
+##### Download and demo
+
+|Download|Docs|Examples|
+|-------------|-------------|-------------|
+|[Go to releases](../../tags)|[Become a contributor](../../wiki/Become-a-contributor)|[Code examples](../../wiki/Code-examples)
+|[Mobile_Detect.php](./Mobile_Detect.php)|[History](../../wiki/History)|[:iphone: Live demo!](http://is.gd/mobiletest)
+|[Composer package](https://packagist.org/packages/mobiledetect/mobiledetectlib)|
+
+##### Help
+
+|Pledgie|Paypal|
+|-------|------|
+|[Donate :+1:](http://pledgie.com/campaigns/21856)|[Donate :beer:](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=mobiledetectlib%40gmail%2ecom&lc=US&item_name=Mobile%20Detect&currency_code=USD&bn=PP%2dDonationsBF%3abtn_donate_SM%2egif%3aNonHosted)|
+
+
+I'm currently paying for hosting and spend a lot of my family time to maintain the project and planning the future releases.
+I would highly appreciate any money donations that will keep the research going.
+
+Special thanks to the community :+1: for donations, [BrowserStack](http://browserstack.com) - for providing access to their great platform, [Zend](http://zend.com) - for donating licenses, [Dragos Gavrila](https://twitter.com/grafician) who contributed with the logo.
+
+##### 3rd party modules / [Submit new](../../issues/new?title=New%203rd%20party%20module&body=Name, Link and Description of the module.)
+
+:point_right: Keep `Mobile_Detect.php` class in a separate `module` and do NOT include it in your script core because of the high frequency of updates.
+:point_right: When including the class into you `web application` or `module` always use `include_once '../path/to/Mobile_Detect.php` to prevent conflicts.
+
+<table>
+
+<tr>
+  <td>Varnish Cache</td>
+  <td>
+    <p><a href="https://github.com/willemk/varnish-mobiletranslate">Varnish Mobile Detect</a> - Drop-in varnish solution to mobile user detection based on the Mobile-Detect library. Made by <a href="https://github.com/willemk">willemk</a></p>
+    <p><a href="https://github.com/carlosabalde/mobiledetect2vcl">mobiledetect2vcl</a> - Python script to transform the Mobile Detect JSON database into an UA-based mobile detection VCL subroutine easily integrable in any Varnish Cache configuration. Made by <a href="https://github.com/carlosabalde">Carlos Abalde</a></p>
+  </td>
+</tr>
+
+<tr>
+  <td>WordPress</td>
+  <td>
+    <p><a href="http://wordpress.org/extend/plugins/wp-mobile-detect/">WordPress Mobile Detect</a> - Gives you the ability to wrap that infographic in a `[notdevice][/notdevice]` shortcode so at the server level <code>WordPress</code> will decide to show that content only if the user is NOT on a phone or tablet. Made by <a href="http://profiles.wordpress.org/professor44/">Jesse Friedman</a>.</p>
+
+    <p><a href="http://wordpress.org/plugins/mobble/">mobble</a> - provides mobile related conditional functions for your site. e.g. is_iphone(), is_mobile() and is_tablet(). Made by Scott Evans.</p>
+
+    <p><a href="https://github.com/iamspacehead/responsage">WordPress Responsage</a> - A small <code>WordPress</code> theme plugin that allows you to make your images responsive. Made by <a href="https://github.com/iamspacehead">Adrian Ciaschetti</a>.</p>
+
+    <p><a href="http://wordpress.org/plugins/social-popup/">Social PopUP</a> - This plugin will display a popup or splash screen when a new user visit your site showing a Google+, Twitter and Facebook follow links. It uses Mobile_Detect to detect mobile devices.</p>
+  </td>
+</tr>
+
+<tr>
+  <td>Drupal</td>
+  <td>
+    <p><a href="http://drupal.org/project/mobile_switch">Drupal Mobile Switch</a> - The Mobile Switch <code>Drupal</code> module provides a automatic theme switch functionality for mobile devices,
+    detected by Browscap or Mobile Detect. Made by <a href="http://drupal.org/user/45267">Siegfried Neumann</a>.</p>
+
+   <p><a href="http://drupal.org/project/context_mobile_detect">Drupal Context Mobile Detect</a> - This is a <code>Drupal context</code> module which integrates Context and PHP Mobile Detect library.
+      Created by <a href="http://drupal.org/user/432492">Artem Shymko</a>.</p>
+
+   <p><a href="http://drupal.org/project/mobile_detect">Drupal Mobile Detect</a> - Lightweight mobile detect module for <code>Drupal</code> created by <a href="http://drupal.org/user/325244">Matthew Donadio</a></p>
+  </td>
+</tr>
+
+  <tr>
+    <td>Joomla</td>
+    <td><p><a href="http://www.yagendoo.com/en/blog/free-mobile-detection-plugin-for-joomla.html">yagendoo Joomla! Mobile Detection Plugin</a> - Lightweight PHP plugin for Joomla! that detects a mobile browser using the Mobile Detect class. Made by <a href="http://www.yagendoo.com/">yagendoo media</a>.</p></td>
+ </tr>
+
+ <tr>
+     <td>Magento</td>
+     <td><p><a href="http://www.magentocommerce.com/magento-connect/catalog/product/view/id/16835/">Magento</a> - This <code>Magento helper</code> from Optimise Web enables the use of all functions provided by MobileDetect.net.
+     Made by <a href="http://www.kathirvel.com">Kathir Vel</a>.</p></td>
+ </tr>
+
+ <tr>
+  <td>PrestaShop</td>
+  <td><p><a href="http://www.prestashop.com/">PrestaShop</a> is a free, secure and open source shopping cart platform. Mobile_Detect is included in the default package since 1.5.x.</p></td>
+ </tr>
+
+ <tr>
+  <td>Zend Framework</td>
+  <td>
+    <p><a href="https://github.com/neilime/zf2-mobile-detect.git">ZF2 Mobile-Detect</a> - Zend Framework 2 module that provides Mobile-Detect features (Mobile_Detect class as a service, helper for views and plugin controllers). Made by <a href="https://github.com/neilime">neilime</a></p>
+
+   <p><a href="https://github.com/nikolaposa/MobileDetectModule">ZF2 MobileDetectModule</a> - Facilitates integration of a PHP MobileDetect class with some ZF2-based application. Has similar idea like the existing ZF2 Mobile-Detect module, but differs in initialization and provision routine of the actual Mobile_Detect class. Appropriate view helper and controller plugin also have different conceptions. Made by <a href="https://github.com/nikolaposa">Nikola Posa</a></p>
+  </td>
+ </tr>
+
+  <tr>
+    <td>Symfony</td>
+    <td><p><a href="https://github.com/suncat2000/MobileDetectBundle">Symfony2 Mobile Detect Bundle</a> - The bundle for detecting mobile devices, manage mobile view and redirect to the mobile and tablet version.
+        Made by <a href="https://github.com/suncat2000">Nikolay Ivlev</a>.</p>
+        <p><a href="https://github.com/jbinfo/MobileDetectServiceProvider">Silex Mobile Detect Service Provider</a> - <code>Silex</code> service provider to interact with Mobile detect class methods. Made by <a href="https://github.com/jbinfo">Lhassan Baazzi</a>.</p>
+     </td>
+  </tr>
+
+  <tr>
+    <td>Laravel</td>
+    <td>
+    <p><a href="https://github.com/jenssegers/Laravel-Agent">Laravel-Agent</a> a user agent class for Laravel, based on Mobile Detect with some additional functionality. Made by <a href="https://github.com/jenssegers">Jens Segers</a>.</p>
+    <p><a href="https://github.com/hisorange/browser-detect">BrowserDetect</a> is a browser &amp; mobile detection package, collects and wrap together the best user-agent identifiers for Laravel. Created by <a href="https://github.com/hisorange">Varga Zsolt</a>.</p>
+    </td>
+  </tr>
+
+  <tr>
+    <td>ExpressionEngine</td>
+    <td><p><a href="https://github.com/garethtdavies/detect-mobile">EE2 Detect Mobile</a> - Lightweight PHP plugin for <code>EE2</code> that detects a mobile browser using the Mobile Detect class. Made by <a href="https://github.com/garethtdavies">Gareth Davies</a>.</p></td>
+ </tr>
+
+ <tr>
+  <td>Yii Framework</td>
+  <td><p><a href="https://github.com/iamsalnikov/MobileDetect">Yii Extension</a> - Mobile detect plugin for Yii framework. Made by <a href="https://github.com/iamsalnikov">Alexey Salnikov</a>.</p></td>
+ </tr>
+
+<tr>
+    <td>CakePHP</td>
+    <td><p><a href="https://github.com/chronon/CakePHP-MobileDetectComponent-Plugin">CakePHP MobileDetect</a> - <code>plugin</code> component for <code>CakePHP</code> 2.x. Made by <a href="https://github.com/chronon">Gregory Gaskill</a></p></td>
+</tr>
+
+<tr>
+    <td>FuelPHP</td>
+    <td><a href="https://github.com/rob-bar/special_agent">Special Agent</a> is a FuelPHP package which uses php-mobile-detect to determine whether a device is mobile or not.
+It overrides the Fuelphp Agent class its methods. Made by <a href="https://github.com/rob-bar">Robbie Bardjin</a>.</td>
+</tr>
+
+<tr>
+  <td>Typo3</td>
+  <td><a href="http://docs.typo3.org/typo3cms/extensions/px_mobiledetect/1.0.2/">px_mobiledetect</a> is an extension that helps to detect visitor's mobile device class (if that’s tablet or mobile device like smartphone). Made by Alexander Tretyak.</td>
+</tr>
+
+<tr>
+  <td>Statamic</td>
+  <td><p><a href="https://github.com/sergeifilippov/statamic-mobile-detect">Statamic CMS Mobile Detect</a> - <code>plugin</code>. Made by <a href="https://github.com/haikulab/statamic-mobile-detect">Sergei Filippov of Haiku Lab</a>.</p></td>
+</tr>
+
+<tr>
+  <td>Kohana</td>
+  <td><p><a href="https://github.com/madeinnordeste/kohana-mobile-detect">Kohana Mobile Detect</a> - an example of implementation of <code>Mobile_Detect</code> class with Kohana framework. Written by <a href="https://github.com/madeinnordeste">Luiz Alberto S. Ribeiro</a>.</p></td>
+</tr>
+
+<tr>
+  <td>mobile-detect.js</td>
+  <td><p>A <a href="https://github.com/hgoebl/mobile-detect.js">JavaScript port</a> of Mobile-Detect class. Made by <a href="https://github.com/hgoebl">Heinrich Goebl</a></p></td>
+  </tr>
+
+ <tr>
+      <td>Perl</td>
+      <td><p><a href="http://www.buzzerstar.com/development/">MobileDetect.pm</a> - <code>Perl module</code> for  Mobile Detect. Made by <a href="http://www.buzzerstar.com/">Sebastian Enger</a>.</p></td>
+ </tr>
+
+ <tr>
+      <td>python</td>
+      <td><p><a href="http://pypi.python.org/pypi/pymobiledetect">pymobiledetect</a> - Mobile detect <code>python package</code>. Made by Bas van Oostveen.</p></td>
+ </tr>
+ 
+ <tr>
+	 <td>Ruby</td>
+	 <td><p><a href="https://github.com/ktaragorn/mobile_detect">mobile_detect.rb</a> - A <code>Ruby gem</code> using the JSON data exposed by the php project and implementing a basic subset of the API (as much as can be done by the exposed data). Made by <a href="https://github.com/ktaragorn">Karthik T</a>.</p></td>
+ </tr>
+
+<tr>
+	<td>GoMobileDetect</td>
+	<td><p><a href="https://github.com/Shaked/gomobiledetect">GoMobileDetect</a> - Go port of Mobile Detect class. Made by <a href="https://github.com/Shaked">Shaked</a>.</p></td>
+</tr>
+
+ <tr>
+    <td>MemHT</td>
+    <td><p><a href="http://www.memht.com/">MemHT</a> is a Free PHP CMS and Blog that permit the creation and the management online of websites with few and easy steps. Has the class included in the core.</p></td>
+ </tr>
+
+ <tr>
+  <td>concrete5</td>
+  <td><p><a href="https://www.concrete5.org/">concrete5</a> is a CMS that is free and open source. The library is included in the core.</p></td>
+ </tr>
+
+ <tr>
+  <td>engine7</td>
+  <td><p><a href="https://github.com/gchiappe/exengine7">ExEngine 7</a> PHP Open Source Framework. The Mobile_Detect class is included in the engine.</p></td>
+ </tr>
+
+ <tr>
+  <td>Zikula</td>
+  <td><p><a href="http://zikula.org/">Zikula</a> is a free and open-source Content Management Framework, which allows you to run impressive websites and build powerful online applications. The core uses Mobile-Detect to switch to a special Mobile theme, using jQueryMobile</p></td>
+ </tr>
+
+<tr>
+    <td>UserAgentInfo</td>
+    <td><p><a href="https://github.com/quentin389/UserAgentInfo">UserAgentInfo</a> is a PHP class for parsing user agent strings (HTTP_USER_AGENT). Includes mobile checks, bot checks, browser types/versions and more.
+Based on browscap, Mobile_Detect and ua-parser. Created for high traffic websites and fast batch processing. Made by <a href="https://github.com/quentin389">quentin389</a></p></td>
+</tr>
+
+<tr>
+  <td>Craft CMS</td>
+  <td><p><a href="https://github.com/lewisjenkins/craft-lj-mobiledetect">LJ Mobile Detect</a> is a simple implementation of Mobile Detect for Craft CMS. Made by <a href="https://github.com/lewisjenkins">Lewis Jenkins</a></p></td>
+</tr>
+
+</table>
diff --git a/library/Mobile_Detect/composer.json b/library/Mobile_Detect/composer.json
new file mode 100644
index 0000000000..c56611fb6b
--- /dev/null
+++ b/library/Mobile_Detect/composer.json
@@ -0,0 +1,30 @@
+{
+    "name": "mobiledetect/mobiledetectlib",
+    "type": "library",
+    "description": "Mobile_Detect is a lightweight PHP class for detecting mobile devices. It uses the User-Agent string combined with specific HTTP headers to detect the mobile environment.",
+    "keywords": ["mobile", "mobile detect", "mobile detector", "php mobile detect", "detect mobile devices"],
+    "homepage": "https://github.com/serbanghita/Mobile-Detect",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Serban Ghita",
+            "email": "serbanghita@gmail.com",
+            "homepage": "http://mobiledetect.net",
+            "role": "Developer"
+        }
+    ],
+    "require": {
+        "php": ">=5.0.0"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "*",
+        "johnkary/phpunit-speedtrap": "~1.0@dev",
+        "codeclimate/php-test-reporter": "dev-master"
+    },
+    "autoload": {
+        "classmap": ["Mobile_Detect.php"],
+        "psr-0": {
+            "Detection": "namespaced/"
+        }
+    }
+}
diff --git a/library/Mobile_Detect/namespaced/Detection/MobileDetect.php b/library/Mobile_Detect/namespaced/Detection/MobileDetect.php
new file mode 100644
index 0000000000..ca70fe8076
--- /dev/null
+++ b/library/Mobile_Detect/namespaced/Detection/MobileDetect.php
@@ -0,0 +1,22 @@
+<?php
+/**
+ * Little piece of PHP to make Mobile_Detect auto-loadable in PSR-0 compatible PHP autoloaders like
+ * the Symfony Universal ClassLoader by Fabien Potencier. Since PSR-0 handles an underscore in
+ * classnames (on the filesystem) as a slash, "Mobile_Detect.php" autoloaders will try to convert
+ * the classname and path to "Mobile\Detect.php". This script will ensure autoloading with:
+ *  - Namespace:	   Detection
+ *  - Classname:       MobileDetect
+ *  - Namespased:      \Detection\MobileDetect
+ *  - Autoload path:   ./namespaced
+ *  - Converted path:  ./namespaced/Detection/MobileDetect.php
+ *
+ * Don't forget to use MobileDetect (instead of Mobile_Detect) as class in code when autoloading.
+ *
+ * Thanks to @WietseWind.
+ * For details please check: https://github.com/serbanghita/Mobile-Detect/pull/120
+ */
+
+namespace Detection;
+require_once dirname(__FILE__) . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . 'Mobile_Detect.php';
+
+class MobileDetect extends \Mobile_Detect {}

From b827824fafbbd71c3bd27f59ddaab1722c9db124 Mon Sep 17 00:00:00 2001
From: Michael Vogel <icarus@dabo.de>
Date: Tue, 24 Feb 2015 20:39:02 +0100
Subject: [PATCH 13/13] Trying to avoid parser problems.

---
 include/bb2diaspora.php | 23 +++++------------------
 1 file changed, 5 insertions(+), 18 deletions(-)

diff --git a/include/bb2diaspora.php b/include/bb2diaspora.php
index e818acb83e..5a38852936 100644
--- a/include/bb2diaspora.php
+++ b/include/bb2diaspora.php
@@ -17,23 +17,11 @@ function diaspora2bb($s) {
 
 	$s = html_entity_decode($s,ENT_COMPAT,'UTF-8');
 
-	// Simply remove cr.
+	// Remove CR to avoid problems with following code
 	//$s = str_replace("\r","",$s);
-/*
-	// The parser has problems with unbalanced HTML elements
-	$doc = new DOMDocument();
-	$doc->preserveWhiteSpace = false;
-	$s = mb_convert_encoding($s, 'HTML-ENTITIES', "UTF-8");
-	$doctype = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">';
-	$encoding = '<?xml encoding="UTF-8">';
-	@$doc->loadHTML($encoding.$doctype."<html><body>".$s."</body></html>");
-	$doc->encoding = 'UTF-8';
-	$s = $doc->saveHTML();
-	$s = str_replace(array("<html><body>", "</body></html>", $doctype, $encoding), array("", "", "", ""), $s);
-*/
 
-	// The parser has problems with unbalanced html elements
-	$s = str_replace(array("<br/>", "</p>", "<p>", '<p dir="ltr">'),array("<br />", "<br />", "<br />", "<br />"),$s);
+	// The parser cannot handle paragraphs correctly
+	$s = str_replace(array("</p>", "<p>", '<p dir="ltr">'),array("<br>", "<br>", "<br>"),$s);
 
 	// Escaping the hash tags
 	$s = preg_replace('/\#([^\s\#])/','&#35;$1',$s);
@@ -116,9 +104,8 @@ function bb2diaspora($Text,$preserve_nl = false, $fordiaspora = true) {
 
 	$a->save_timestamp($stamp1, "parser");
 
-	// Libertree has a problem with escaped hashtags - Diaspora doesn't seem to.
-	if (!$fordiaspora)
-		$Text = str_replace(array('\#'), array('#'), $Text);
+	// Libertree has a problem with escaped hashtags.
+	$Text = str_replace(array('\#'), array('#'), $Text);
 
 	// Remove any leading or trailing whitespace, as this will mess up
 	// the Diaspora signature verification and cause the item to disappear