Dropped Markdown for Parsedown

1 files changed, 0 insertions, 1256 deletions

diff --git a/framework/3rdParty/Markdown/MarkdownParser.php b/framework/3rdParty/Markdown/MarkdownParser.php
deleted file mode 100644
index b581dcb5..00000000
--- a/framework/3rdParty/Markdown/MarkdownParser.php
+++ /dev/null
@@ -1,1256 +0,0 @@
-<?php
-
-#
-# Markdown  -  A text-to-HTML conversion tool for web writers
-#
-# Copyright (c) 2004-2005 John Gruber
-# <http://daringfireball.net/projects/markdown/>
-#
-# Copyright (c) 2004-2005 Michel Fortin - PHP Port
-# <http://www.michelf.com/projects/php-markdown/>
-#
-
-/**
- * PHP5 version of the markdown parser.
- * Usage:
- * <code>
- * $markdown = new MarkdownParser;
- * echo $markdown->parse($text);
- * </code>
- */
-class MarkdownParser
-{
-	private static $md_nested_brackets;
-	private static $md_escape_table = array();
-	private static $md_backslash_escape_table = array();
-	private static $md_nested_brackets_depth = 6;
-
-	protected $md_empty_element_suffix = " />";     # Change to ">" for HTML output
-	protected $md_tab_width = 4;
-
-	private $md_list_level = 0;
-	private $md_urls = array();
-	private $md_titles = array();
-	private $md_html_blocks = array();
-
-	public function __construct()
-	{
-		if(is_null(self::$md_nested_brackets))
-			$this->initialize();
-	}
-
-	private function initialize()
-	{
-		self::$md_nested_brackets =
-			str_repeat('(?>[^\[\]]+|\[', self::$md_nested_brackets_depth).
-			str_repeat('\])*', self::$md_nested_brackets_depth);
-
-		self::$md_escape_table = array(
-			"\\" => md5("\\"),
-			"`" => md5("`"),
-			"*" => md5("*"),
-			"_" => md5("_"),
-			"{" => md5("{"),
-			"}" => md5("}"),
-			"[" => md5("["),
-			"]" => md5("]"),
-			"(" => md5("("),
-			")" => md5(")"),
-			">" => md5(">"),
-			"#" => md5("#"),
-			"+" => md5("+"),
-			"-" => md5("-"),
-			"." => md5("."),
-			"!" => md5("!")
-		);
-
-		# Table of hash values for escaped characters:
-		# Create an identical table but for escaped characters.
-		foreach (self::$md_escape_table as $key => $char)
-			self::$md_backslash_escape_table["\\$key"] = $char;
-	}
-
-	public function parse($text)
-	{
-	#
-	# Main function. The order in which other subs are called here is
-	# essential. Link and image substitutions need to happen before
-	# _EscapeSpecialCharsWithinTagAttributes(), so that any *'s or _'s in the <a>
-	# and <img> tags get encoded.
-	#
-		# Clear the hashes. If we don't clear these, you get conflicts
-		# from other articles when generating a page which contains more than
-		# one article (e.g. an index page that shows the N most recent
-		# articles):
-		$this->md_urls = array();
-		$this->md_titles = array();
-		$this->md_html_blocks = array();
-
-		# Standardize line endings:
-		#   DOS to Unix and Mac to Unix
-		$text = str_replace(array("\r\n", "\r"), "\n", $text);
-
-		# Make sure $text ends with a couple of newlines:
-		$text .= "\n\n";
-
-		# Convert all tabs to spaces.
-		$text = $this->_Detab($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 /[ \t]*\n+/ .
-		$text = preg_replace('/^[ \t]+$/m', '', $text);
-
-		# Turn block-level HTML blocks into hash entries
-		$text = $this->_HashHTMLBlocks($text);
-
-		# Strip link definitions, store in hashes.
-		$text = $this->_StripLinkDefinitions($text);
-
-		$text = $this->_RunBlockGamut($text);
-
-		$text = $this->_UnescapeSpecialChars($text);
-
-		return $text . "\n";
-	}
-
-
-	private function _StripLinkDefinitions($text) {
-	#
-	# Strips link definitions from text, stores the URLs and titles in
-	# hash references.
-	#
-		$less_than_tab = $this->md_tab_width - 1;
-
-		# Link defs are in the form: ^[id]: url "optional title"
-		$text = preg_replace_callback('{
-							^[ ]{0,'.$less_than_tab.'}\[(.+)\]:	# id = $1
-							  [ \t]*
-							  \n?				# maybe *one* newline
-							  [ \t]*
-							<?(\S+?)>?			# url = $2
-							  [ \t]*
-							  \n?				# maybe one newline
-							  [ \t]*
-							(?:
-								(?<=\s)			# lookbehind for whitespace
-								["(]
-								(.+?)			# title = $3
-								[")]
-								[ \t]*
-							)?	# title is optional
-							(?:\n+|\Z)
-			}xm',
-			array($this,'_StripLinkDefinitions_callback'),
-			$text);
-		return $text;
-	}
-
-	private function _StripLinkDefinitions_callback($matches) {
-		$link_id = strtolower($matches[1]);
-		$this->md_urls[$link_id] = $this->_EncodeAmpsAndAngles($matches[2]);
-		if (isset($matches[3]))
-			$this->md_titles[$link_id] = str_replace('"', '&quot;', $matches[3]);
-		return ''; # String that will replace the block
-	}
-
-
-	private function _HashHTMLBlocks($text) {
-		$less_than_tab = $this->md_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:
-		$block_tags_a = 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|'.
-						'script|noscript|form|fieldset|iframe|math|ins|del';
-		$block_tags_b = 'p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|'.
-						'script|noscript|form|fieldset|iframe|math';
-
-		# 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("{
-					(						# save in $1
-						^					# start of line  (with /m)
-						<($block_tags_a)	# start tag = $2
-						\\b					# word break
-						(.*\\n)*?			# any number of lines, minimally matching
-						</\\2>				# the matching end tag
-						[ \\t]*				# trailing spaces/tabs
-						(?=\\n+|\\Z)	# followed by a newline or end of document
-					)
-			}xm",
-			array($this,'_HashHTMLBlocks_callback'),
-			$text);
-
-		#
-		# Now match more liberally, simply from `\n<tag>` to `</tag>\n`
-		#
-		$text = preg_replace_callback("{
-					(						# save in $1
-						^					# start of line  (with /m)
-						<($block_tags_b)	# start tag = $2
-						\\b					# word break
-						(.*\\n)*?			# any number of lines, minimally matching
-						.*</\\2>				# the matching end tag
-						[ \\t]*				# trailing spaces/tabs
-						(?=\\n+|\\Z)	# followed by a newline or end of document
-					)
-			}xm",
-			array($this,'_HashHTMLBlocks_callback'),
-			$text);
-
-		# Special case just for <hr />. It was easier to make a special case than
-		# to make the other regex more complicated.
-		$text = preg_replace_callback('{
-					(?:
-						(?<=\n\n)		# Starting after a blank line
-						|				# or
-						\A\n?			# the beginning of the doc
-					)
-					(						# save in $1
-						[ ]{0,'.$less_than_tab.'}
-						<(hr)				# start tag = $2
-						\b					# word break
-						([^<>])*?			#
-						/?>					# the matching end tag
-						[ \t]*
-						(?=\n{2,}|\Z)		# followed by a blank line or end of document
-					)
-			}x',
-			array($this,'_HashHTMLBlocks_callback'),
-			$text);
-
-		# Special case for standalone HTML comments:
-		$text = preg_replace_callback('{
-					(?:
-						(?<=\n\n)		# Starting after a blank line
-						|				# or
-						\A\n?			# the beginning of the doc
-					)
-					(						# save in $1
-						[ ]{0,'.$less_than_tab.'}
-						(?s:
-							<!
-							(--.*?--\s*)+
-							>
-						)
-						[ \t]*
-						(?=\n{2,}|\Z)		# followed by a blank line or end of document
-					)
-				}x',
-				array($this,'_HashHTMLBlocks_callback'),
-				$text);
-
-		return $text;
-	}
-	private function _HashHTMLBlocks_callback($matches) {
-		$text = $matches[1];
-		$key = md5($text);
-		$this->md_html_blocks[$key] = $text;
-		return "\n\n$key\n\n"; # String that will replace the block
-	}
-
-
-	private function _RunBlockGamut($text) {
-	#
-	# These are all the transformations that form block-level
-	# tags like paragraphs, headers, and list items.
-	#
-		$text = $this->_DoHeaders($text);
-
-		# Do Horizontal Rules:
-		$text = preg_replace(
-			array('{^[ ]{0,2}([ ]?\*[ ]?){3,}[ \t]*$}mx',
-				  '{^[ ]{0,2}([ ]? -[ ]?){3,}[ \t]*$}mx',
-				  '{^[ ]{0,2}([ ]? _[ ]?){3,}[ \t]*$}mx'),
-			"\n<hr{$this->md_empty_element_suffix}\n",
-			$text);
-
-		$text = $this->_DoLists($text);
-		$text = $this->_DoCodeBlocks($text);
-		$text = $this->_DoBlockQuotes($text);
-
-		# We already ran _HashHTMLBlocks() before, in Markdown(), but that
-		# was to escape raw HTML in the original Markdown source. This time,
-		# we're escaping the markup we've just created, so that we don't wrap
-		# <p> tags around block-level tags.
-		$text = $this->_HashHTMLBlocks($text);
-		$text = $this->_FormParagraphs($text);
-
-		return $text;
-	}
-
-
-	private function _RunSpanGamut($text) {
-	#
-	# These are all the transformations that occur *within* block-level
-	# tags like paragraphs, headers, and list items.
-	#
-
-		$text = $this->_DoCodeSpans($text);
-
-		$text = $this->_EscapeSpecialChars($text);
-
-		# Process anchor and image tags. Images must come first,
-		# because ![foo][f] looks like an anchor.
-		$text = $this->_DoImages($text);
-		$text = $this->_DoAnchors($text);
-
-		# 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>).
-		$text = $this->_DoAutoLinks($text);
-		$text = $this->_EncodeAmpsAndAngles($text);
-		$text = $this->_DoItalicsAndBold($text);
-
-		# Do hard breaks:
-		$text = preg_replace('/ {2,}\n/', "<br{$this->md_empty_element_suffix}\n", $text);
-
-		return $text;
-	}
-
-
-	private function _EscapeSpecialChars($text) {
-		$tokens = $this->_TokenizeHTML($text);
-
-		$text = '';   # rebuild $text from the tokens
-	#	$in_pre = 0;  # Keep track of when we're inside <pre> or <code> tags.
-	#	$tags_to_skip = "!<(/?)(?:pre|code|kbd|script|math)[\s>]!";
-
-		foreach ($tokens as $cur_token) {
-			if ($cur_token[0] == 'tag') {
-				# Within tags, encode * and _ so they don't conflict
-				# with their use in Markdown for italics and strong.
-				# We're replacing each such character with its
-				# corresponding MD5 checksum value; this is likely
-				# overkill, but it should prevent us from colliding
-				# with the escape values by accident.
-				$cur_token[1] = str_replace(array('*', '_'),
-					array(self::$md_escape_table['*'], self::$md_escape_table['_']),
-					$cur_token[1]);
-				$text .= $cur_token[1];
-			} else {
-				$t = $cur_token[1];
-				$t = $this->_EncodeBackslashEscapes($t);
-				$text .= $t;
-			}
-		}
-		return $text;
-	}
-
-
-	private function _DoAnchors($text) {
-	#
-	# Turn Markdown link shortcuts into XHTML <a> tags.
-	#
-		#
-		# First, handle reference-style links: [link text] [id]
-		#
-		$bracket = self::$md_nested_brackets;
-		$text = preg_replace_callback("{
-			(					# wrap whole match in $1
-			  \\[
-				({$bracket})	# 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 $1
-			  \\[
-				({$bracket})	# link text = $2
-			  \\]
-			  \\(			# literal paren
-				[ \\t]*
-				<?(.*?)>?	# href = $3
-				[ \\t]*
-				(			# $4
-				  (['\"])	# quote char = $5
-				  (.*?)		# Title = $6
-				  \\5		# matching quote
-				)?			# title is optional
-			  \\)
-			)
-			}xs",
-			array($this,'_DoAnchors_inline_callback'), $text);
-
-		return $text;
-	}
-	private function _DoAnchors_reference_callback($matches) {
-		$whole_match = $matches[1];
-		$link_text   = $matches[2];
-		$link_id     = strtolower($matches[3]);
-
-		if ($link_id == "") {
-			$link_id = strtolower($link_text); # for shortcut links like [this][].
-		}
-
-		if (isset($this->md_urls[$link_id])) {
-			$url = $this->md_urls[$link_id];
-			# We've got to encode these to avoid conflicting with italics/bold.
-			$url = str_replace(array('*', '_'),
-							   array(self::$md_escape_table['*'], self::$md_escape_table['_']),
-							   $url);
-			$result = "<a href=\"$url\"";
-			if ( isset( $this->md_titles[$link_id] ) ) {
-				$title = $this->md_titles[$link_id];
-				$title = str_replace(array('*',     '_'),
-									 array(self::$md_escape_table['*'],
-										   self::$md_escape_table['_']), $title);
-				$result .=  " title=\"$title\"";
-			}
-			$result .= ">$link_text</a>";
-		}
-		else {
-			$result = $whole_match;
-		}
-		return $result;
-	}
-	private function _DoAnchors_inline_callback($matches) {
-		$whole_match	= $matches[1];
-		$link_text		= $matches[2];
-		$url			= $matches[3];
-		$title			=& $matches[6];
-
-		# We've got to encode these to avoid conflicting with italics/bold.
-		$url = str_replace(array('*', '_'),
-						   array(self::$md_escape_table['*'], self::$md_escape_table['_']),
-						   $url);
-		$result = "<a href=\"$url\"";
-		if (isset($title)) {
-			$title = str_replace('"', '&quot;', $title);
-			$title = str_replace(array('*', '_'),
-								 array(self::$md_escape_table['*'], self::$md_escape_table['_']),
-								 $title);
-			$result .=  " title=\"$title\"";
-		}
-
-		$result .= ">$link_text</a>";
-
-		return $result;
-	}
-
-
-	private function _DoImages($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
-			  !\[
-				('.self::$md_nested_brackets.')		# alt text = $2
-			  \]
-
-			  [ ]?				# 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
-			  !\[
-				('.self::$md_nested_brackets.')		# alt text = $2
-			  \]
-			  \(			# literal paren
-				[ \t]*
-				<?(\S+?)>?	# src url = $3
-				[ \t]*
-				(			# $4
-				  ([\'"])	# quote char = $5
-				  (.*?)		# title = $6
-				  \5		# matching quote
-				  [ \t]*
-				)?			# title is optional
-			  \)
-			)
-			}xs',
-			array($this,'_DoImages_inline_callback'), $text);
-
-		return $text;
-	}
-	private function _DoImages_reference_callback($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 = str_replace('"', '&quot;', $alt_text);
-		if (isset($this->md_urls[$link_id])) {
-			$url = $this->md_urls[$link_id];
-			# We've got to encode these to avoid conflicting with italics/bold.
-			$url = str_replace(array('*', '_'),
-							   array(self::$md_escape_table['*'], self::$md_escape_table['_']),
-							   $url);
-			$result = "<img src=\"$url\" alt=\"$alt_text\"";
-			if (isset($this->md_titles[$link_id])) {
-				$title = $this->md_titles[$link_id];
-				$title = str_replace(array('*', '_'),
-									 array(self::$md_escape_table['*'],
-										   self::$md_escape_table['_']), $title);
-				$result .=  " title=\"$title\"";
-			}
-			$result .= $this->md_empty_element_suffix;
-		}
-		else {
-			# If there's no such link ID, leave intact:
-			$result = $whole_match;
-		}
-
-		return $result;
-	}
-	private function _DoImages_inline_callback($matches) {
-		$whole_match	= $matches[1];
-		$alt_text		= $matches[2];
-		$url			= $matches[3];
-		$title			= '';
-		if (isset($matches[6])) {
-			$title		= $matches[6];
-		}
-
-		$alt_text = str_replace('"', '&quot;', $alt_text);
-		$title    = str_replace('"', '&quot;', $title);
-		# We've got to encode these to avoid conflicting with italics/bold.
-		$url = str_replace(array('*', '_'),
-						   array(self::$md_escape_table['*'], self::$md_escape_table['_']),
-						   $url);
-		$result = "<img src=\"$url\" alt=\"$alt_text\"";
-		if (isset($title)) {
-			$title = str_replace(array('*', '_'),
-								 array(self::$md_escape_table['*'], self::$md_escape_table['_']),
-								 $title);
-			$result .=  " title=\"$title\""; # $title already quoted
-		}
-		$result .= $this->md_empty_element_suffix;
-
-		return $result;
-	}
-
-
-	private function _DoHeaders($text) {
-		# Setext-style headers:
-		#	  Header 1
-		#	  ========
-		#
-		#	  Header 2
-		#	  --------
-		#
-		$text = preg_replace(
-			array('{ ^(.+)[ \t]*\n=+[ \t]*\n+ }emx',
-				  '{ ^(.+)[ \t]*\n-+[ \t]*\n+ }emx'),
-			array("'<h1>'.\$this->_RunSpanGamut(\$this->_UnslashQuotes('\\1')).'</h1>\n\n'",
-				  "'<h2>'.\$this->_RunSpanGamut(\$this->_UnslashQuotes('\\1')).'</h2>\n\n'"),
-			$text);
-
-		# atx-style headers:
-		#	# Header 1
-		#	## Header 2
-		#	## Header 2 with closing hashes ##
-		#	...
-		#	###### Header 6
-		#
-		$text = preg_replace("{
-				^(\\#{1,6})	# $1 = string of #'s
-				[ \\t]*
-				(.+?)		# $2 = Header text
-				[ \\t]*
-				\\#*			# optional closing #'s (not counted)
-				\\n+
-			}xme",
-			"'<h'.strlen('\\1').'>'.\$this->_RunSpanGamut(\$this->_UnslashQuotes('\\2')).'</h'.strlen('\\1').'>\n\n'",
-			$text);
-
-		return $text;
-	}
-
-
-	private function _DoLists($text) {
-	#
-	# Form HTML ordered (numbered) and unordered (bulleted) lists.
-	#
-		$less_than_tab = $this->md_tab_width - 1;
-
-		# Re-usable patterns to match list item bullets and number markers:
-		$marker_ul  = '[*+-]';
-		$marker_ol  = '\d+[.]';
-		$marker_any = "(?:$marker_ul|$marker_ol)";
-
-		$markers = array($marker_ul, $marker_ol);
-
-		foreach ($markers as $marker) {
-			# Re-usable pattern to match any entirel ul or ol list:
-			$whole_list = '
-				(								# $1 = whole list
-				  (								# $2
-					[ ]{0,'.$less_than_tab.'}
-					('.$marker.')				# $3 = first list item marker
-					[ \t]+
-				  )
-				  (?s:.+?)
-				  (								# $4
-					  \z
-					|
-					  \n{2,}
-					  (?=\S)
-					  (?!						# Negative lookahead for another list item marker
-						[ \t]*
-						'.$marker.'[ \t]+
-					  )
-				  )
-				)
-			'; // mx
-
-			# We use a different prefix before nested lists than top-level lists.
-			# See extended comment in _ProcessListItems().
-
-			if ($this->md_list_level) {
-				$text = preg_replace_callback('{
-						^
-						'.$whole_list.'
-					}mx',
-					array($this,'_DoLists_callback_top'), $text);
-			}
-			else {
-				$text = preg_replace_callback('{
-						(?:(?<=\n\n)|\A\n?)
-						'.$whole_list.'
-					}mx',
-					array($this,'_DoLists_callback_nested'), $text);
-			}
-		}
-
-		return $text;
-	}
-	private function _DoLists_callback_top($matches) {
-		# Re-usable patterns to match list item bullets and number markers:
-		$marker_ul  = '[*+-]';
-		$marker_ol  = '\d+[.]';
-		$marker_any = "(?:$marker_ul|$marker_ol)";
-
-		$list = $matches[1];
-		$list_type = preg_match("/$marker_ul/", $matches[3]) ? "ul" : "ol";
-
-		$marker_any = ( $list_type == "ul" ? $marker_ul : $marker_ol );
-
-		# Turn double returns into triple returns, so that we can make a
-		# paragraph for the last item in a list, if necessary:
-		$list = preg_replace("/\n{2,}/", "\n\n\n", $list);
-		$result = $this->_ProcessListItems($list, $marker_any);
-
-		# Trim any trailing whitespace, to put the closing `</$list_type>`
-		# up on the preceding line, to get it past the current stupid
-		# HTML block parser. This is a hack to work around the terrible
-		# hack that is the HTML block parser.
-		$result = rtrim($result);
-		$result = "<$list_type>" . $result . "</$list_type>\n";
-		return $result;
-	}
-	private function _DoLists_callback_nested($matches) {
-		# Re-usable patterns to match list item bullets and number markers:
-		$marker_ul  = '[*+-]';
-		$marker_ol  = '\d+[.]';
-		$marker_any = "(?:$marker_ul|$marker_ol)";
-
-		$list = $matches[1];
-		$list_type = preg_match("/$marker_ul/", $matches[3]) ? "ul" : "ol";
-
-		$marker_any = ( $list_type == "ul" ? $marker_ul : $marker_ol );
-
-		# Turn double returns into triple returns, so that we can make a
-		# paragraph for the last item in a list, if necessary:
-		$list = preg_replace("/\n{2,}/", "\n\n\n", $list);
-		$result = $this->_ProcessListItems($list, $marker_any);
-		$result = "<$list_type>\n" . $result . "</$list_type>\n";
-		return $result;
-	}
-
-
-	private function _ProcessListItems($list_str, $marker_any) {
-	#
-	#	Process the contents of a single ordered or unordered list, splitting it
-	#	into individual list items.
-	#
-
-		# The $md_list_level 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->md_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
-			(^[ \t]*)						# leading whitespace = $2
-			('.$marker_any.') [ \t]+		# list marker = $3
-			((?s:.+?)						# list item text   = $4
-			(\n{1,2}))
-			(?= \n* (\z | \2 ('.$marker_any.') [ \t]+))
-			}xm',
-			array($this,'_ProcessListItems_callback'), $list_str);
-
-		$this->md_list_level--;
-		return $list_str;
-	}
-	private function _ProcessListItems_callback($matches) {
-		$item = $matches[4];
-		$leading_line =& $matches[1];
-		$leading_space =& $matches[2];
-
-		if ($leading_line || preg_match('/\n{2,}/', $item)) {
-			$item = $this->_RunBlockGamut($this->_Outdent($item));
-		}
-		else {
-			# Recursion for sub-lists:
-			$item = $this->_DoLists($this->_Outdent($item));
-			$item = preg_replace('/\n+$/', '', $item);
-			$item = $this->_RunSpanGamut($item);
-		}
-
-		return "<li>" . $item . "</li>\n";
-	}
-
-
-	private function _DoCodeBlocks($text) {
-	#
-	#	Process Markdown `<pre><code>` blocks.
-	#
-		$text = preg_replace_callback('{
-				(?:\n\n|\A)
-				(	            # $1 = the code block -- one or more lines, starting with a space/tab
-				  (?:
-					(?:[ ]{'.$this->md_tab_width.'} | \t)  # Lines must start with a tab or a tab-width of spaces
-					.*\n+
-				  )+
-				)
-				((?=^[ ]{0,'.$this->md_tab_width.'}\S)|\Z)	# Lookahead for non-space at line-start, or end of doc
-			}xm',
-			array($this,'_DoCodeBlocks_callback'), $text);
-
-		return $text;
-	}
-	private function _DoCodeBlocks_callback($matches) {
-		$codeblock = $matches[1];
-
-		$codeblock = $this->_EncodeCode($this->_Outdent($codeblock));
-	//	$codeblock = _Detab($codeblock);
-		# trim leading newlines and trailing whitespace
-		$codeblock = preg_replace(array('/\A\n+/', '/\s+\z/'), '', $codeblock);
-
-		$result = "\n\n<pre><code>" . $codeblock . "\n</code></pre>\n\n";
-
-		return $result;
-	}
-
-
-	private function _DoCodeSpans($text) {
-	#
-	# 	*	Backtick quotes are used for <code></code> spans.
-	#
-	# 	*	You can use multiple backticks as the delimiters if you want to
-	# 		include literal backticks in the code span. So, this input:
-	#
-	#		  Just type ``foo `bar` baz`` at the prompt.
-	#
-	#	  	Will translate to:
-	#
-	#		  <p>Just type <code>foo `bar` baz</code> at the prompt.</p>
-	#
-	#		There's no arbitrary limit to the number of backticks you
-	#		can use as delimters. If you need three consecutive backticks
-	#		in your code, use four for delimiters, etc.
-	#
-	#	*	You can use spaces to get literal backticks at the edges:
-	#
-	#		  ... type `` `bar` `` ...
-	#
-	#	  	Turns to:
-	#
-	#		  ... type <code>`bar`</code> ...
-	#
-		$text = preg_replace_callback('@
-				(?<!\\\)	# Character before opening ` can\'t be a backslash
-				(`+)		# $1 = Opening run of `
-				(.+?)		# $2 = The code block
-				(?<!`)
-				\1			# Matching closer
-				(?!`)
-			@xs',
-			array($this,'_DoCodeSpans_callback'), $text);
-
-		return $text;
-	}
-	private function _DoCodeSpans_callback($matches) {
-		$c = $matches[2];
-		$c = preg_replace('/^[ \t]*/', '', $c); # leading whitespace
-		$c = preg_replace('/[ \t]*$/', '', $c); # trailing whitespace
-		$c = $this->_EncodeCode($c);
-		return "<code>$c</code>";
-	}
-
-
-	private function _EncodeCode($_) {
-	#
-	# Encode/escape certain characters inside Markdown code runs.
-	# The point is that in code, these characters are literals,
-	# and lose their special Markdown meanings.
-	#
-		# Encode all ampersands; HTML entities are not
-		# entities within a Markdown code span.
-		$_ = str_replace('&', '&amp;', $_);
-
-		# Do the angle bracket song and dance:
-		$_ = str_replace(array('<',    '>'),
-						 array('&lt;', '&gt;'), $_);
-
-		# Now, escape characters that are magic in Markdown:
-		$_ = str_replace(array_keys(self::$md_escape_table),
-						 array_values(self::$md_escape_table), $_);
-
-		return $_;
-	}
-
-
-	private function _DoItalicsAndBold($text) {
-		# <strong> must go first:
-		$text = preg_replace('{
-				(						# $1: Marker
-					(?<!\*\*) \*\* |	#     (not preceded by two chars of
-					(?<!__)   __		#      the same marker)
-				)
-				(?=\S) 					# Not followed by whitespace
-				(?!\1)					#   or two others marker chars.
-				(						# $2: Content
-					(?:
-						[^*_]+?			# Anthing not em markers.
-					|
-										# Balence any regular emphasis inside.
-						([*_]) (?=\S) .+? (?<=\S) \3	# $3: em char (* or _)
-					|
-						(?! \1 ) .		# Allow unbalenced * and _.
-					)+?
-				)
-				(?<=\S) \1				# End mark not preceded by whitespace.
-			}sx',
-			'<strong>\2</strong>', $text);
-		# Then <em>:
-		$text = preg_replace(
-			'{ ( (?<!\*)\* | (?<!_)_ ) (?=\S) (?! \1) (.+?) (?<=\S) \1 }sx',
-			'<em>\2</em>', $text);
-
-		return $text;
-	}
-
-
-	private function _DoBlockQuotes($text) {
-		$text = preg_replace_callback('/
-			  (								# Wrap whole match in $1
-				(
-				  ^[ \t]*>[ \t]?			# ">" at the start of a line
-					.+\n					# rest of the first line
-				  (.+\n)*					# subsequent consecutive lines
-				  \n*						# blanks
-				)+
-			  )
-			/xm',
-			array($this,'_DoBlockQuotes_callback'), $text);
-
-		return $text;
-	}
-	private function _DoBlockQuotes_callback($matches) {
-		$bq = $matches[1];
-		# trim one level of quoting - trim whitespace-only lines
-		$bq = preg_replace(array('/^[ \t]*>[ \t]?/m', '/^[ \t]+$/m'), '', $bq);
-		$bq = $this->_RunBlockGamut($bq);		# recurse
-
-		$bq = preg_replace('/^/m', "  ", $bq);
-		# These leading spaces screw with <pre> content, so we need to fix that:
-		$bq = preg_replace_callback('{(\s*<pre>.+?</pre>)}sx',
-									array($this,'_DoBlockQuotes_callback2'), $bq);
-
-		return "<blockquote>\n$bq\n</blockquote>\n\n";
-	}
-	private function _DoBlockQuotes_callback2($matches) {
-		$pre = $matches[1];
-		$pre = preg_replace('/^  /m', '', $pre);
-		return $pre;
-	}
-
-
-	private function _FormParagraphs($text) {
-	#
-	#	Params:
-	#		$text - string to process with html <p> tags
-	#
-		# Strip leading and trailing lines:
-		$text = preg_replace(array('/\A\n+/', '/\n+\z/'), '', $text);
-
-		$grafs = preg_split('/\n{2,}/', $text, -1, PREG_SPLIT_NO_EMPTY);
-
-		#
-		# Wrap <p> tags.
-		#
-		foreach ($grafs as $key => $value) {
-			if (!isset( $this->md_html_blocks[$value] )) {
-				$value = $this->_RunSpanGamut($value);
-				$value = preg_replace('/^([ \t]*)/', '<p>', $value);
-				$value .= "</p>";
-				$grafs[$key] = $value;
-			}
-		}
-
-		#
-		# Unhashify HTML blocks
-		#
-		foreach ($grafs as $key => $value) {
-			if (isset( $this->md_html_blocks[$value] )) {
-				$grafs[$key] = $this->md_html_blocks[$value];
-			}
-		}
-
-		return implode("\n\n", $grafs);
-	}
-
-
-	private function _EncodeAmpsAndAngles($text) {
-	# Smart processing for ampersands and angle brackets that need to be encoded.
-
-		# 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 naked <'s
-		$text = preg_replace('{<(?![a-z/?\$!])}i', '&lt;', $text);
-
-		return $text;
-	}
-
-
-	private function _EncodeBackslashEscapes($text) {
-	#
-	#	Parameter:  String.
-	#	Returns:    The string, with after processing the following backslash
-	#				escape sequences.
-	#
-		# Must process escaped backslashes first.
-		return str_replace(array_keys(self::$md_backslash_escape_table),
-						   array_values(self::$md_backslash_escape_table), $text);
-	}
-
-
-	private function _DoAutoLinks($text) {
-		$text = preg_replace("!<((https?|ftp):[^'\">\\s]+)>!",
-							 '<a href="\1">\1</a>', $text);
-
-		# Email addresses: <address@domain.foo>
-		$text = preg_replace('{
-			<
-			(?:mailto:)?
-			(
-				[-.\w]+
-				\@
-				[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+
-			)
-			>
-			}exi',
-			"\$this->_EncodeEmailAddress(\$this->_UnescapeSpecialChars(\$this->_UnslashQuotes('\\1')))",
-			$text);
-
-		return $text;
-	}
-
-
-	private function _EncodeEmailAddress($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.:
-	#
-	#	  <a href="&#x6D;&#97;&#105;&#108;&#x74;&#111;:&#102;&#111;&#111;&#64;&#101;
-	#		x&#x61;&#109;&#x70;&#108;&#x65;&#x2E;&#99;&#111;&#109;">&#102;&#111;&#111;
-	#		&#64;&#101;x&#x61;&#109;&#x70;&#108;&#x65;&#x2E;&#99;&#111;&#109;</a>
-	#
-	#	Based by a filter by Matthew Wickline, posted to the BBEdit-Talk
-	#	mailing list: <http://tinyurl.com/yu7ue>
-	#
-		$addr = "mailto:" . $addr;
-		$length = strlen($addr);
-
-		# leave ':' alone (to spot mailto: later)
-		$addr = preg_replace_callback('/([^\:])/',
-									  array($this,'_EncodeEmailAddress_callback'), $addr);
-
-		$addr = "<a href=\"$addr\">$addr</a>";
-		# strip the mailto: from the visible part
-		$addr = preg_replace('/">.+?:/', '">', $addr);
-
-		return $addr;
-	}
-	private function _EncodeEmailAddress_callback($matches) {
-		$char = $matches[1];
-		$r = rand(0, 100);
-		# roughly 10% raw, 45% hex, 45% dec
-		# '@' *must* be encoded. I insist.
-		if ($r > 90 && $char != '@') return $char;
-		if ($r < 45) return '&#x'.dechex(ord($char)).';';
-		return '&#'.ord($char).';';
-	}
-
-
-	private function _UnescapeSpecialChars($text) {
-	#
-	# Swap back in all the special characters we've hidden.
-	#
-		return str_replace(array_values(self::$md_escape_table),
-						   array_keys(self::$md_escape_table), $text);
-	}
-
-
-	# _TokenizeHTML is shared between PHP Markdown and PHP SmartyPants.
-	# We only define it if it is not already defined.
-
-	private function _TokenizeHTML($str) {
-	#
-	#   Parameter:  String containing HTML markup.
-	#   Returns:    An array of the tokens comprising the input
-	#               string. Each token is either a tag (possibly with nested,
-	#               tags contained therein, such as <a href="<MTFoo>">, or a
-	#               run of text between tags. Each element of the array is a
-	#               two-element array; the first is either 'tag' or 'text';
-	#               the second is the actual value.
-	#
-	#
-	#   Regular expression derived from the _tokenize() subroutine in
-	#   Brad Choate's MTRegex plugin.
-	#   <http://www.bradchoate.com/past/mtregex.php>
-	#
-		$index = 0;
-		$tokens = array();
-
-		$match = '(?s:<!(?:--.*?--\s*)+>)|'.	# comment
-				 '(?s:<\?.*?\?>)|'.				# processing instruction
-												# regular tags
-				 '(?:<[/!$]?[-a-zA-Z0-9:]+\b(?>[^"\'>]+|"[^"]*"|\'[^\']*\')*>)';
-
-		$parts = preg_split("{($match)}", $str, -1, PREG_SPLIT_DELIM_CAPTURE);
-
-		foreach ($parts as $part) {
-			if (++$index % 2 && $part != '')
-				$tokens[] = array('text', $part);
-			else
-				$tokens[] = array('tag', $part);
-		}
-
-		return $tokens;
-	}
-
-	private function _Outdent($text) {
-	#
-	# Remove one level of line-leading tabs or spaces
-	#
-		return preg_replace("/^(\\t|[ ]{1,".$this->md_tab_width."})/m", "", $text);
-	}
-
-
-	private function _Detab($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.
-
-		$lines = explode("\n", $text);
-		$text = "";
-
-		foreach ($lines as $line) {
-			# 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 = $this->md_tab_width - strlen($line) % $this->md_tab_width;
-				$line .= str_repeat(" ", $amount) . $block;
-			}
-			$text .= "$line\n";
-		}
-		return $text;
-	}
-
-
-	private function _UnslashQuotes($text) {
-	#
-	#	This function is useful to remove automaticaly slashed double quotes
-	#	when using preg_replace and evaluating an expression.
-	#	Parameter:  String.
-	#	Returns:    The string with any slash-double-quote (\") sequence replaced
-	#				by a single double quote.
-	#
-		return str_replace('\"', '"', $text);
-	}
-}
-
-/*
-
-PHP Markdown
-============
-
-Description
------------
-
-This is a PHP translation of the original Markdown formatter written in
-Perl by John Gruber.
-
-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.
-
-1.0.1c - 9 Dec 2005
-
-1.0.1b - 6 Jun 2005
-
-1.0.1a - 15 Apr 2005
-
-1.0.1 - 16 Dec 2004
-
-1.0 - 21 Aug 2004
-
-
-Author & Contributors
----------------------
-
-Original Perl version by John Gruber
-<http://daringfireball.net/>
-
-PHP port and other contributions by Michel Fortin
-<http://www.michelf.com/>
-
-
-Copyright and License
----------------------
-
-Copyright (c) 2004-2005 Michel Fortin
-<http://www.michelf.com/>
-All rights reserved.
-
-Copyright (c) 2003-2004 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.
-
-*/