[^\r]+?<\/pre>)/gm,function(_88,m1){ +var pre=m1; +pre=pre.replace(/^ /mg,"~0"); +pre=pre.replace(/~0/g,""); +return pre; +}); +return _1c("

\n"+bq+"\n

"); +}); +return _84; +}; +var _20=function(_8b){ +_8b=_8b.replace(/^\n+/g,""); +_8b=_8b.replace(/\n+$/g,""); +var _8c=_8b.split(/\n{2,}/g); +var _8d=new Array(); +var end=_8c.length; +for(var i=0;i=0){ +_8d.push(str); +}else{ +if(str.search(/\S/)>=0){ +str=_21(str); +str=str.replace(/^([ \t]*)/g,"

"); +str+="

"; +_8d.push(str); +} +} +} +end=_8d.length; +for(var i=0;i=0){ +var _91=_3[RegExp.$1]; +_91=_91.replace(/\$/g,"$$$$"); +_8d[i]=_8d[i].replace(/~K\d+K/,_91); +} +} +return _8d.join("\n\n"); +}; +var _11=function(_92){ +_92=_92.replace(/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/g,"&"); +_92=_92.replace(/<(?![a-z\/?\$!])/gi,"<"); +return _92; +}; +var _25=function(_93){ +_93=_93.replace(/\$\$/g,_94); +_93=_93.replace(/\\([`*_{}\[\]()>#+-.!])/g,_94); +return _93; +}; +var _28=function(_95){ +_95=_95.replace(/<((https?|ftp|dict):[^'">\s]+)>/gi,"$1"); +_95=_95.replace(/<(?:mailto:)?([-.\w]+\@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+)>/gi,function(_96,m1){ +return _98(_a(m1)); +}); +return _95; +}; +var _98=function(_99){ +function char2hex(ch){ +var _9b="0123456789ABCDEF"; +var dec=ch.charCodeAt(0); +return (_9b.charAt(dec>>4)+_9b.charAt(dec&15)); +} +var _9d=[function(ch){ +return "&#"+ch.charCodeAt(0)+";"; +},function(ch){ +return "&#x"+char2hex(ch)+";"; +},function(ch){ +return ch; +}]; +_99="mailto:"+_99; +_99=_99.replace(/./g,function(ch){ +if(ch=="@"){ +ch=_9d[Math.floor(Math.random()*2)](ch); +}else{ +if(ch!=":"){ +var r=Math.random(); +ch=(r>0.9?_9d[2](ch):r>0.45?_9d[1](ch):_9d[0](ch)); +} +} +return ch; +}); +_99=""+_99+""; +_99=_99.replace(/">.+:/g,"\">"); +return _99; +}; +var _a=function(_a3){ +_a3=_a3.replace(/~E(\d+)E/g,function(_a4,m1){ +var _a6=parseInt(m1); +return String.fromCharCode(_a6); +}); +return _a3; +}; +var _72=function(_a7){ +_a7=_a7.replace(/^(\t|[ ]{1,4})/gm,"~0"); +_a7=_a7.replace(/~0/g,""); +return _a7; +}; +var _6=function(_a8){ +_a8=_a8.replace(/\t(?=\t)/g," "); +_a8=_a8.replace(/\t/g,"~A~B"); +_a8=_a8.replace(/~B(.+?)~A/g,function(_a9,m1,m2){ +var _ac=m1; +var _ad=4-_ac.length%4; +for(var i=0;i<_ad;i++){ +_ac+=" "; +} +return _ac; +}); +_a8=_a8.replace(/~A/g," "); +_a8=_a8.replace(/~B/g,""); +return _a8; +}; +var _2e=function(_af,_b0,_b1){ +var _b2="(["+_b0.replace(/([\[\]\\])/g,"\\$1")+"])"; +if(_b1){ +_b2="\\\\"+_b2; +} +var _b3=new RegExp(_b2,"g"); +_af=_af.replace(_b3,_94); +return _af; +}; +var _94=function(_b4,m1){ +var _b6=m1.charCodeAt(0); +return "~E"+_b6+"E"; +}; +}; + diff --git a/example/showdown-gui.html b/example/showdown-gui.html new file mode 100644 index 0000000..c447221 --- /dev/null +++ b/example/showdown-gui.html @@ -0,0 +1,720 @@ + + + + + Showdown - Markdown in Javascript + + + + + + + +

Showdown

a javascript port of Markdown

+ +

+ Input +

Using this tool
+---------------
+
+This page lets you create HTML by entering text in a simple format that's easy to read and write.
+
+  - Type Markdown text in the left window
+  - See the HTML in the right
+
+Markdown is a lightweight markup language based on the formatting conventions that people naturally use in email.  As [John Gruber] writes on the [Markdown site] [1]:
+
+> The overriding design goal for Markdown's
+> formatting syntax is to make it as readable 
+> as possible. The idea is that a
+> Markdown-formatted document should be
+> publishable as-is, as plain text, without
+> looking like it's been marked up with tags
+> or formatting instructions.
+
+This document is written in Markdown; you can see the plain-text version on the left.  To get a feel for Markdown's syntax, type some text into the left window and watch the results in the right.  You can see a Markdown syntax guide by switching the right-hand window from *Preview* to *Syntax Guide*.
+
+Showdown is a Javascript port of Markdown.  You can get the full [source code] by clicking on the version number at the bottom of the page.
+
+**Start with a [blank page] or edit this document in the left window.**
+
+  [john gruber]: http://daringfireball.net/
+  [1]: http://daringfireball.net/projects/markdown/
+  [source code]: http://www.attacklab.net/showdown-v0.9.zip
+  [blank page]: ?blank=1 "Clear all text"
+
+

+ +

+ + + +

+ + + + + + + + +

+
+Markdown Syntax Guide
+=====================
+
+This is an overview of Markdown's syntax.  For more information, visit the [Markdown web site].
+
+ [Markdown web site]:
+   http://daringfireball.net/projects/markdown/
+
+
+
+
+
+
+Italics and Bold
+================
+
+
+*This is italicized*, and so is _this_.
+
+**This is bold**, and so is __this__.
+
+You can use ***italics and bold together*** if you ___have to___.
+
+
+
+
+
+
+Links
+=====
+
+
+Simple links
+------------
+
+There are three ways to write links.  Each is easier to read than the last:
+
+Here's an inline link to [Google](http://www.google.com/).
+Here's a reference-style link to [Google] [1].
+Here's a very readable link to [Yahoo!].
+
+  [1]: http://www.google.com/
+  [yahoo!]: http://www.yahoo.com/
+
+The link definitions can appear anywhere in the document -- before or after the place where you use them.  The link definition names (`1` and `Yahoo!`) can be any unique string, and are case-insensitive; `[Yahoo!]` is the same as `[YAHOO!]`.
+
+
+Advanced links: Title attributes
+--------------------------------
+
+You can also add a `title` attribute to a link, which will show up when the user holds the mouse pointer it.  Title attributes are helpful if your link text is not descriptive enough to tell users where they're going.  (In reference links, you can use optionally parentheses for the link title instead of quotation marks.)
+
+Here's a [poorly-named link](http://www.google.com/ "Google").
+Never write "[click here][^2]".
+Trust [me].
+
+  [^2]: http://www.w3.org/QA/Tips/noClickHere
+        (Advice against the phrase "click here")
+  [me]: http://www.attacklab.net/ "Attacklab"
+
+
+Advanced links: Bare URLs
+-------------------------
+
+You can write bare URLs by enclosing them in angle brackets:
+
+My web site is at <http://www.attacklab.net>.
+
+If you use this format for email addresses, Showdown will encode the address to make it harder for spammers to harvest.  Try it and look in the *HTML Output* pane to see the results:
+
+Humans can read this, but most spam harvesting robots can't: <me@privacy.net>
+
+
+
+
+
+
+Headers
+=======
+
+
+There are two ways to do headers in Markdown.  (In these examples, Header 1 is the biggest, and Header 6 is the smallest.)
+
+You can underline text to make the two top-level headers:
+
+Header 1
+========
+
+Header 2
+--------
+
+The number of `=` or `-` signs doesn't matter; you can get away with just one.  But using enough to underline the text makes your titles look better in plain text.
+
+You can also use hash marks for all six levels of HTML headers:
+
+# Header 1 #
+## Header 2 ##
+### Header 3 ###
+#### Header 4 ####
+##### Header 5 #####
+###### Header 6 ######
+
+The closing `#` characters are optional.
+
+
+
+
+
+
+Horizontal Rules
+================
+
+
+You can insert a horizontal rule by putting three or more hyphens, asterisks, or underscores on a line by themselves:
+
+---
+
+*******
+___
+
+You can also use spaces between the characters:
+
+-  -  -  -
+
+All of these examples produce the same output.
+
+
+
+
+
+
+Lists
+=====
+
+
+Simple lists
+------------
+
+A bulleted list:
+
+- You can use a minus sign for a bullet
++ Or plus sign
+* Or an asterisk
+
+A numbered list:
+
+1. Numbered lists are easy
+2. Markdown keeps track of the numbers for you
+7. So this will be item 3.
+
+A double-spaced list:
+
+- This list gets wrapped in `<p>` tags
+
+- So there will be extra space between items
+
+
+Advanced lists: Nesting
+-----------------------
+
+You can put other Markdown blocks in a list; just indent four spaces for each nesting level.  So:
+
+1. Lists in a list item:
+    - Indented four spaces.
+        * indented eight spaces.
+    - Four spaces again.
+
+2.  Multiple paragraphs in a list items:
+
+    It's best to indent the paragraphs four spaces
+    You can get away with three, but it can get
+    confusing when you nest other things.
+    Stick to four.
+
+    We indented the first line an extra space to align
+    it with these paragraphs.  In real use, we might do
+    that to the entire list so that all items line up.
+
+    This paragraph is still part of the list item, but it looks messy to humans.  So it's a good idea to wrap your nested paragraphs manually, as we did with the first two.
+
+3. Blockquotes in a list item:
+
+    > Skip a line and
+    > indent the >'s four spaces.
+
+4. Preformatted text in a list item:
+
+        Skip a line and indent eight spaces.
+        That's four spaces for the list
+        and four to trigger the code block.
+
+
+
+
+
+
+Blockquotes
+===========
+
+
+Simple blockquotes
+------------------
+
+Blockquotes are indented:
+
+> The syntax is based on the way email programs
+> usually do quotations. You don't need to hard-wrap
+> the paragraphs in your blockquotes, but it looks much nicer if you do.  Depends how lazy you feel.
+
+
+Advanced blockquotes: Nesting
+-----------------------------
+
+You can put other Markdown blocks in a blockquote; just add a `>` followed by a space:
+
+Parragraph breaks in a blockquote:
+
+> The > on the blank lines is optional.
+> Include it or don't; Markdown doesn't care.
+>
+> But your plain text looks better to
+> humans if you include the extra `>`
+> between paragraphs.
+
+
+Blockquotes within a blockquote:
+
+> A standard blockquote is indented
+> > A nested blockquote is indented more
+> > > > You can nest to any depth.
+
+
+Lists in a blockquote:
+
+> - A list in a blockquote
+> - With a > and space in front of it
+>     * A sublist
+
+Preformatted text in a blockquote:
+
+>     Indent five spaces total.  The first
+>     one is part of the blockquote designator.
+
+
+
+
+
+
+Images
+======
+
+
+Images are exactly like links, but they have an exclamation point in front of them:
+
+ ![Valid XHTML] (http://w3.org/Icons/valid-xhtml10).
+
+The word in square brackets is the alt text, which gets displayed if the browser can't show the image.  Be sure to include meaningful alt text for blind users' screen-reader software.
+
+Just like links, images work with reference syntax and titles:
+
+ This page is ![valid XHTML][checkmark].
+
+ [checkmark]: http://w3.org/Icons/valid-xhtml10
+           "What are you smiling at?"
+
+
+**Note:**
+
+Markdown does not currently support the shortest reference syntax for images:
+
+  Here's a broken ![checkmark].
+
+But you can use a slightly more verbose version of implicit reference names:
+
+  This ![checkmark][] works.
+
+The reference name (`valid icon`) is also used as the alt text.
+
+
+
+
+
+
+Inline HTML
+===========
+
+
+If you need to do something that Markdown can't handle, you can always just use HTML:
+
+ Strikethrough humor is <strike>funny</strike>.
+
+Markdown is smart enough not to mangle your span-level HTML:
+
+<u>Markdown works *fine* in here.</u>
+
+Block-level HTML elments have a few restrictions:
+
+1. They must be separated from surrounding text by blank
+   lines.
+2. The begin and end tags of the outermost block element
+   must not be indented.
+3. You can't use Markdown within HTML blocks.
+
+So:
+
+<div style="background-color: lightgray">
+    You can <em>not</em> use Markdown in here.
+</div>
+
+
+
+
+
+
+Preformatted Text
+=================
+
+
+You can include preformatted text in a Markdown document.
+
+To make a code block, indent four spaces:
+
+    printf("goodbye world!");  /* his suicide note
+                                  was in C */
+
+The text will be wrapped in `<pre>` and `<code>` tags, and the browser will display it in a monospaced typeface.  The first four spaces will be stripped off, but all other whitespace will be preserved.
+
+You cannot use Markdown or HTML within a code block, which makes them a convenient way to show samples of Markdown or HTML syntax:
+
+    <blink>
+       You would hate this if it weren't
+       wrapped in a code block.
+    </blink>
+
+
+
+
+
+
+Code Spans
+==========
+
+
+You can make inline `<code>` tags by using code spans.  Use backticks to make a code span:
+
+ Press the `<Tab>` key, then type a `$`.
+
+(The backtick key is in the upper left corner of most keyboards.)
+
+Like code blocks, code spans will be displayed in a monospaced typeface.  Markdown and HTML will not work within them:
+
+ Markdown italicizes things like this: `I *love* it.`
+
+ Don't use the `<font>` tag; use CSS instead.
+
+

+ + + + + +

+ + + + + + \ No newline at end of file diff --git a/example/showdown-gui.js b/example/showdown-gui.js new file mode 100644 index 0000000..5f3519f --- /dev/null +++ b/example/showdown-gui.js @@ -0,0 +1,349 @@ +// +// showdown-gui.js +// +// A sample application for Showdown, a javascript port +// of Markdown. +// +// Copyright (c) 2007 John Fraser. +// +// Redistributable under a BSD-style open source license. +// See license.txt for more information. +// +// The full source distribution is at: +// +// A A L +// T C A +// T K B +// +// +// + +// +// The Showdown converter itself is in showdown.js, which must be +// included by the HTML before this file is. +// +// showdown-gui.js assumes the id and class definitions in +// showdown.html. It isn't dependent on the CSS, but it does +// manually hide, display, and resize the individual panes -- +// overriding the stylesheets. +// +// This sample application only interacts with showdown.js in +// two places: +// +// In startGui(): +// +// converter = new Showdown.converter(); +// +// In convertText(): +// +// text = converter.makeHtml(text); +// +// The rest of this file is user interface stuff. +// + + +// +// Register for onload +// +window.onload = startGui; + + +// +// Globals +// + +var converter; +var convertTextTimer,processingTime; +var lastText,lastOutput,lastRoomLeft; +var convertTextSetting, convertTextButton, paneSetting; +var inputPane,previewPane,outputPane,syntaxPane; +var maxDelay = 3000; // longest update pause (in ms) + + +// +// Initialization +// + +function startGui() { + // find elements + convertTextSetting = document.getElementById("convertTextSetting"); + convertTextButton = document.getElementById("convertTextButton"); + paneSetting = document.getElementById("paneSetting"); + + inputPane = document.getElementById("inputPane"); + previewPane = document.getElementById("previewPane"); + outputPane = document.getElementById("outputPane"); + syntaxPane = document.getElementById("syntaxPane"); + + // set event handlers + convertTextSetting.onchange = onConvertTextSettingChanged; + convertTextButton.onclick = onConvertTextButtonClicked; + paneSetting.onchange = onPaneSettingChanged; + window.onresize = setPaneHeights; + + // First, try registering for keyup events + // (There's no harm in calling onInput() repeatedly) + window.onkeyup = inputPane.onkeyup = onInput; + + // In case we can't capture paste events, poll for them + var pollingFallback = window.setInterval(function(){ + if(inputPane.value != lastText) + onInput(); + },1000); + + // Try registering for paste events + inputPane.onpaste = function() { + // It worked! Cancel paste polling. + if (pollingFallback!=undefined) { + window.clearInterval(pollingFallback); + pollingFallback = undefined; + } + onInput(); + } + + // Try registering for input events (the best solution) + if (inputPane.addEventListener) { + // Let's assume input also fires on paste. + // No need to cancel our keyup handlers; + // they're basically free. + inputPane.addEventListener("input",inputPane.onpaste,false); + } + + // poll for changes in font size + // this is cheap; do it often + window.setInterval(setPaneHeights,250); + + // start with blank page? + if (top.document.location.href.match(/\?blank=1$/)) + inputPane.value = ""; + + // refresh panes to avoid a hiccup + onPaneSettingChanged(); + + // build the converter + converter = new Showdown.converter(); + + // do an initial conversion to avoid a hiccup + convertText(); + + // give the input pane focus + inputPane.focus(); + + // start the other panes at the top + // (our smart scrolling moved them to the bottom) + previewPane.scrollTop = 0; + outputPane.scrollTop = 0; +} + + +// +// Conversion +// + +function convertText() { + // get input text + var text = inputPane.value; + + // if there's no change to input, cancel conversion + if (text && text == lastText) { + return; + } else { + lastText = text; + } + + var startTime = new Date().getTime(); + + // Do the conversion + text = converter.makeHtml(text); + + // display processing time + var endTime = new Date().getTime(); + processingTime = endTime - startTime; + document.getElementById("processingTime").innerHTML = processingTime+" ms"; + + // save proportional scroll positions + saveScrollPositions(); + + // update right pane + if (paneSetting.value == "outputPane") { + // the output pane is selected + outputPane.value = text; + } else if (paneSetting.value == "previewPane") { + // the preview pane is selected + previewPane.innerHTML = text; + } + + lastOutput = text; + + // restore proportional scroll positions + restoreScrollPositions(); +}; + + +// +// Event handlers +// + +function onConvertTextSettingChanged() { + // If the user just enabled automatic + // updates, we'll do one now. + onInput(); +} + +function onConvertTextButtonClicked() { + // hack: force the converter to run + lastText = ""; + + convertText(); + inputPane.focus(); +} + +function onPaneSettingChanged() { + previewPane.style.display = "none"; + outputPane.style.display = "none"; + syntaxPane.style.display = "none"; + + // now make the selected one visible + top[paneSetting.value].style.display = "block"; + + lastRoomLeft = 0; // hack: force resize of new pane + setPaneHeights(); + + if (paneSetting.value == "outputPane") { + // Update output pane + outputPane.value = lastOutput; + } else if (paneSetting.value == "previewPane") { + // Update preview pane + previewPane.innerHTML = lastOutput; + } +} + +function onInput() { +// In "delayed" mode, we do the conversion at pauses in input. +// The pause is equal to the last runtime, so that slow +// updates happen less frequently. +// +// Use a timer to schedule updates. Each keystroke +// resets the timer. + + // if we already have convertText scheduled, cancel it + if (convertTextTimer) { + window.clearTimeout(convertTextTimer); + convertTextTimer = undefined; + } + + if (convertTextSetting.value != "manual") { + var timeUntilConvertText = 0; + if (convertTextSetting.value == "delayed") { + // make timer adaptive + timeUntilConvertText = processingTime; + } + + if (timeUntilConvertText > maxDelay) + timeUntilConvertText = maxDelay; + + // Schedule convertText(). + // Even if we're updating every keystroke, use a timer at 0. + // This gives the browser time to handle other events. + convertTextTimer = window.setTimeout(convertText,timeUntilConvertText); + } +} + + +// +// Smart scrollbar adjustment +// +// We need to make sure the user can't type off the bottom +// of the preview and output pages. We'll do this by saving +// the proportional scroll positions before the update, and +// restoring them afterwards. +// + +var previewScrollPos; +var outputScrollPos; + +function getScrollPos(element) { + // favor the bottom when the text first overflows the window + if (element.scrollHeight <= element.clientHeight) + return 1.0; + return element.scrollTop/(element.scrollHeight-element.clientHeight); +} + +function setScrollPos(element,pos) { + element.scrollTop = (element.scrollHeight - element.clientHeight) * pos; +} + +function saveScrollPositions() { + previewScrollPos = getScrollPos(previewPane); + outputScrollPos = getScrollPos(outputPane); +} + +function restoreScrollPositions() { + // hack for IE: setting scrollTop ensures scrollHeight + // has been updated after a change in contents + previewPane.scrollTop = previewPane.scrollTop; + + setScrollPos(previewPane,previewScrollPos); + setScrollPos(outputPane,outputScrollPos); +} + +// +// Textarea resizing +// +// Some browsers (i.e. IE) refuse to set textarea +// percentage heights in standards mode. (But other units? +// No problem. Percentage widths? No problem.) +// +// So we'll do it in javascript. If IE's behavior ever +// changes, we should remove this crap and do 100% textarea +// heights in CSS, because it makes resizing much smoother +// on other browsers. +// + +function getTop(element) { + var sum = element.offsetTop; + while(element = element.offsetParent) + sum += element.offsetTop; + return sum; +} + +function getElementHeight(element) { + var height = element.clientHeight; + if (!height) height = element.scrollHeight; + return height; +} + +function getWindowHeight(element) { + if (window.innerHeight) + return window.innerHeight; + else if (document.documentElement && document.documentElement.clientHeight) + return document.documentElement.clientHeight; + else if (document.body) + return document.body.clientHeight; +} + +function setPaneHeights() { + var textarea = inputPane; + var footer = document.getElementById("footer"); + + var windowHeight = getWindowHeight(); + var footerHeight = getElementHeight(footer); + var textareaTop = getTop(textarea); + + // figure out how much room the panes should fill + var roomLeft = windowHeight - footerHeight - textareaTop; + + if (roomLeft < 0) roomLeft = 0; + + // if it hasn't changed, return + if (roomLeft == lastRoomLeft) { + return; + } + lastRoomLeft = roomLeft; + + // resize all panes + inputPane.style.height = roomLeft + "px"; + previewPane.style.height = roomLeft + "px"; + outputPane.style.height = roomLeft + "px"; + syntaxPane.style.height = roomLeft + "px"; +} \ No newline at end of file diff --git a/example/showdown.js b/example/showdown.js new file mode 100644 index 0000000..a960309 --- /dev/null +++ b/example/showdown.js @@ -0,0 +1,1296 @@ +// +// showdown.js -- A javascript port of Markdown. +// +// Copyright (c) 2007 John Fraser. +// +// Original Markdown Copyright (c) 2004-2005 John Gruber +// +// +// Redistributable under a BSD-style open source license. +// See license.txt for more information. +// +// The full source distribution is at: +// +// A A L +// T C A +// T K B +// +// +// + +// +// Wherever possible, Showdown is a straight, line-by-line port +// of the Perl version of Markdown. +// +// This is not a normal parser design; it's basically just a +// series of string substitutions. It's hard to read and +// maintain this way, but keeping Showdown close to the original +// design makes it easier to port new features. +// +// More importantly, Showdown behaves like markdown.pl in most +// edge cases. So web applications can do client-side preview +// in Javascript, and then build identical HTML on the server. +// +// This port needs the new RegExp functionality of ECMA 262, +// 3rd Edition (i.e. Javascript 1.5). Most modern web browsers +// should do fine. Even with the new regular expression features, +// We do a lot of work to emulate Perl's regex functionality. +// The tricky changes in this file mostly have the "attacklab:" +// label. Major or self-explanatory changes don't. +// +// Smart diff tools like Araxis Merge will be able to match up +// this file with markdown.pl in a useful way. A little tweaking +// helps: in a copy of markdown.pl, replace "#" with "//" and +// replace "$text" with "text". Be sure to ignore whitespace +// and line endings. +// + + +// +// Showdown usage: +// +// var text = "Markdown *rocks*."; +// +// var converter = new Showdown.converter(); +// var html = converter.makeHtml(text); +// +// alert(html); +// +// Note: move the sample code to the bottom of this +// file before uncommenting it. +// + + +// +// Showdown namespace +// +var Showdown = {}; + +// +// converter +// +// Wraps all "globals" so that the only thing +// exposed is makeHtml(). +// +Showdown.converter = function() { + +// +// Globals: +// + +// Global hashes, used by various utility routines +var g_urls; +var g_titles; +var g_html_blocks; + +// Used to track when we're inside an ordered or unordered list +// (see _ProcessListItems() for details): +var g_list_level = 0; + + +this.makeHtml = function(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 +// and tags get encoded. +// + + // Clear the global 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): + g_urls = new Array(); + g_titles = new Array(); + g_html_blocks = new Array(); + + // attacklab: Replace ~ with ~T + // This lets us use tilde as an escape char to avoid md5 hashes + // The choice of character is arbitray; anything that isn't + // magic in Markdown will work. + text = text.replace(/~/g,"~T"); + + // attacklab: Replace $ with ~D + // RegExp interprets $ as a special character + // when it's in a replacement string + text = text.replace(/\$/g,"~D"); + + // Standardize line endings + text = text.replace(/\r\n/g,"\n"); // DOS to Unix + text = text.replace(/\r/g,"\n"); // Mac to Unix + + // Make sure text begins and ends with a couple of newlines: + text = "\n\n" + text + "\n\n"; + + // Convert all tabs to spaces. + text = _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 = text.replace(/^[ \t]+$/mg,""); + + // Turn block-level HTML blocks into hash entries + text = _HashHTMLBlocks(text); + + // Strip link definitions, store in hashes. + text = _StripLinkDefinitions(text); + + text = _RunBlockGamut(text); + + text = _UnescapeSpecialChars(text); + + // attacklab: Restore dollar signs + text = text.replace(/~D/g,"$$"); + + // attacklab: Restore tildes + text = text.replace(/~T/g,"~"); + + return text; +} + + +var _StripLinkDefinitions = function(text) { +// +// Strips link definitions from text, stores the URLs and titles in +// hash references. +// + + // Link defs are in the form: ^[id]: url "optional title" + + /* + var text = text.replace(/ + ^[ ]{0,3}\[(.+)\]: // id = $1 attacklab: g_tab_width - 1 + [ \t]* + \n? // maybe *one* newline + [ \t]* + ? // url = $2 + [ \t]* + \n? // maybe one newline + [ \t]* + (?: + (\n*) // any lines skipped = $3 attacklab: lookbehind removed + ["(] + (.+?) // title = $4 + [")] + [ \t]* + )? // title is optional + (?:\n+|$) + /gm, + function(){...}); + */ + var text = text.replace(/^[ ]{0,3}\[(.+)\]:[ \t]*\n?[ \t]*?[ \t]*\n?[ \t]*(?:(\n*)["(](.+?)[")][ \t]*)?(?:\n+|\Z)/gm, + function (wholeMatch,m1,m2,m3,m4) { + m1 = m1.toLowerCase(); + g_urls[m1] = _EncodeAmpsAndAngles(m2); // Link IDs are case-insensitive + if (m3) { + // Oops, found blank lines, so it's not a title. + // Put back the parenthetical statement we stole. + return m3+m4; + } else if (m4) { + g_titles[m1] = m4.replace(/"/g,"""); + } + + // Completely remove the definition from the text + return ""; + } + ); + + return text; +} + + +var _HashHTMLBlocks = function(text) { + // attacklab: Double up blank lines to reduce lookaround + text = text.replace(/\n/g,"\n\n"); + + // 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

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: + var block_tags_a = "p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|ins|del" + var 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.: + //

+ //

+ // tags for inner block must be indented. + //

+ //

+ // + // 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 `

` and stop at the first `

`. + + // attacklab: This regex can be expensive when it fails. + /* + var text = text.replace(/ + ( // save in $1 + ^ // start of line (with /m) + <($block_tags_a) // start tag = $2 + \b // word break + // attacklab: hack around khtml/pcre bug... + [^\r]*?\n // any number of lines, minimally matching + // the matching end tag + [ \t]* // trailing spaces/tabs + (?=\n+) // followed by a newline + ) // attacklab: there are sentinel newlines at end of document + /gm,function(){...}}; + */ + text = text.replace(/^(<(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|ins|del)\b[^\r]*?\n<\/\2>[ \t]*(?=\n+))/gm,hashElement); + + // + // Now match more liberally, simply from `\n` to `\n` + // + + /* + var text = text.replace(/ + ( // save in $1 + ^ // start of line (with /m) + <($block_tags_b) // start tag = $2 + \b // word break + // attacklab: hack around khtml/pcre bug... + [^\r]*? // any number of lines, minimally matching + .* // the matching end tag + [ \t]* // trailing spaces/tabs + (?=\n+) // followed by a newline + ) // attacklab: there are sentinel newlines at end of document + /gm,function(){...}}; + */ + text = text.replace(/^(<(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math)\b[^\r]*?.*<\/\2>[ \t]*(?=\n+)\n)/gm,hashElement); + + // Special case just for

. It was easier to make a special case than + // to make the other regex more complicated. + + /* + text = text.replace(/ + ( // save in $1 + \n\n // Starting after a blank line + [ ]{0,3} + (<(hr) // start tag = $2 + \b // word break + ([^<>])*? // + \/?>) // the matching end tag + [ \t]* + (?=\n{2,}) // followed by a blank line + ) + /g,hashElement); + */ + text = text.replace(/(\n[ ]{0,3}(<(hr)\b([^<>])*?\/?>)[ \t]*(?=\n{2,}))/g,hashElement); + + // Special case for standalone HTML comments: + + /* + text = text.replace(/ + ( // save in $1 + \n\n // Starting after a blank line + [ ]{0,3} // attacklab: g_tab_width - 1 + + [ \t]* + (?=\n{2,}) // followed by a blank line + ) + /g,hashElement); + */ + text = text.replace(/(\n\n[ ]{0,3}[ \t]*(?=\n{2,}))/g,hashElement); + + // PHP and ASP-style processor instructions ( and <%...%>) + + /* + text = text.replace(/ + (?: + \n\n // Starting after a blank line + ) + ( // save in $1 + [ ]{0,3} // attacklab: g_tab_width - 1 + (?: + <([?%]) // $2 + [^\r]*? + \2> + ) + [ \t]* + (?=\n{2,}) // followed by a blank line + ) + /g,hashElement); + */ + text = text.replace(/(?:\n\n)([ ]{0,3}(?:<([?%])[^\r]*?\2>)[ \t]*(?=\n{2,}))/g,hashElement); + + // attacklab: Undo double lines (see comment at top of this function) + text = text.replace(/\n\n/g,"\n"); + return text; +} + +var hashElement = function(wholeMatch,m1) { + var blockText = m1; + + // Undo double lines + blockText = blockText.replace(/\n\n/g,"\n"); + blockText = blockText.replace(/^\n/,""); + + // strip trailing blank lines + blockText = blockText.replace(/\n+$/g,""); + + // Replace the element text with a marker ("~KxK" where x is its key) + blockText = "\n\n~K" + (g_html_blocks.push(blockText)-1) + "K\n\n"; + + return blockText; +}; + +var _RunBlockGamut = function(text) { +// +// These are all the transformations that form block-level +// tags like paragraphs, headers, and list items. +// + text = _DoHeaders(text); + + // Do Horizontal Rules: + var key = hashBlock("

"); + text = text.replace(/^[ ]{0,2}([ ]?\*[ ]?){3,}[ \t]*$/gm,key); + text = text.replace(/^[ ]{0,2}([ ]?\-[ ]?){3,}[ \t]*$/gm,key); + text = text.replace(/^[ ]{0,2}([ ]?\_[ ]?){3,}[ \t]*$/gm,key); + + text = _DoLists(text); + text = _DoCodeBlocks(text); + text = _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 + //

" + _RunSpanGamut(m1) + "

");}); + + // atx-style headers: + // # Header 1 + // ## Header 2 + // ## Header 2 with closing hashes ## + // ... + // ###### Header 6 + // + + /* + text = text.replace(/ + ^(\#{1,6}) // $1 = string of #'s + [ \t]* + (.+?) // $2 = Header text + [ \t]* + \#* // optional closing #'s (not counted) + \n+ + /gm, function() {...}); + */ + + text = text.replace(/^(\#{1,6})[ \t]*(.+?)[ \t]*\#*\n+/gm, + function(wholeMatch,m1,m2) { + var h_level = m1.length; + return hashBlock("" + _RunSpanGamut(m2) + ""); + }); + + return text; +} + +// This declaration keeps Dojo compressor from outputting garbage: +var _ProcessListItems; + +var _DoLists = function(text) { +// +// Form HTML ordered (numbered) and unordered (bulleted) lists. +// + + // attacklab: add sentinel to hack around khtml/safari bug: + // http://bugs.webkit.org/show_bug.cgi?id=11231 + text += "~0"; + + // Re-usable pattern to match any entirel ul or ol list: + + /* + var whole_list = / + ( // $1 = whole list + ( // $2 + [ ]{0,3} // attacklab: g_tab_width - 1 + ([*+-]|\d+[.]) // $3 = first list item marker + [ \t]+ + ) + [^\r]+? + ( // $4 + ~0 // sentinel for workaround; should be $ + | + \n{2,} + (?=\S) + (?! // Negative lookahead for another list item marker + [ \t]* + (?:[*+-]|\d+[.])[ \t]+ + ) + ) + )/g + */ + var whole_list = /^(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/gm; + + if (g_list_level) { + text = text.replace(whole_list,function(wholeMatch,m1,m2) { + var list = m1; + var list_type = (m2.search(/[*+-]/g)>-1) ? "ul" : "ol"; + + // Turn double returns into triple returns, so that we can make a + // paragraph for the last item in a list, if necessary: + list = list.replace(/\n{2,}/g,"\n\n\n");; + var result = _ProcessListItems(list); + + // Trim any trailing whitespace, to put the closing `` + // 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 = result.replace(/\s+$/,""); + result = "<"+list_type+">" + result + "\n"; + return result; + }); + } else { + whole_list = /(\n\n|^\n?)(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/g; + text = text.replace(whole_list,function(wholeMatch,m1,m2,m3) { + var runup = m1; + var list = m2; + + var list_type = (m3.search(/[*+-]/g)>-1) ? "ul" : "ol"; + // Turn double returns into triple returns, so that we can make a + // paragraph for the last item in a list, if necessary: + var list = list.replace(/\n{2,}/g,"\n\n\n");; + var result = _ProcessListItems(list); + result = runup + "<"+list_type+">\n" + result + "\n"; + return result; + }); + } + + // attacklab: strip sentinel + text = text.replace(/~0/,""); + + return text; +} + +_ProcessListItems = function(list_str) { +// +// Process the contents of a single ordered or unordered list, splitting it +// into individual list items. +// + // The $g_list_level global keeps track of when we're inside a list. + // Each time we enter a list, we increment it; when we leave a list, + // we decrement. If it's zero, we're not in a list anymore. + // + // We do this because when we're not inside a list, we want to treat + // something like this: + // + // I recommend upgrading to version + // 8. Oops, now this line is treated + // as a sub-list. + // + // As a single paragraph, despite the fact that the second line starts + // with a digit-period-space sequence. + // + // Whereas when we're inside a list (or sub-list), that line will be + // treated as the start of a sub-list. What a kludge, huh? This is + // an aspect of Markdown's syntax that's hard to parse perfectly + // without resorting to mind-reading. Perhaps the solution is to + // change the syntax rules such that sub-lists must start with a + // starting cardinal number; e.g. "1." or "a.". + + g_list_level++; + + // trim trailing blank lines: + list_str = list_str.replace(/\n{2,}$/,"\n"); + + // attacklab: add sentinel to emulate \z + list_str += "~0"; + + /* + list_str = list_str.replace(/ + (\n)? // leading line = $1 + (^[ \t]*) // leading whitespace = $2 + ([*+-]|\d+[.]) [ \t]+ // list marker = $3 + ([^\r]+? // list item text = $4 + (\n{1,2})) + (?= \n* (~0 | \2 ([*+-]|\d+[.]) [ \t]+)) + /gm, function(){...}); + */ + list_str = list_str.replace(/(\n)?(^[ \t]*)([*+-]|\d+[.])[ \t]+([^\r]+?(\n{1,2}))(?=\n*(~0|\2([*+-]|\d+[.])[ \t]+))/gm, + function(wholeMatch,m1,m2,m3,m4){ + var item = m4; + var leading_line = m1; + var leading_space = m2; + + if (leading_line || (item.search(/\n{2,}/)>-1)) { + item = _RunBlockGamut(_Outdent(item)); + } + else { + // Recursion for sub-lists: + item = _DoLists(_Outdent(item)); + item = item.replace(/\n$/,""); // chomp(item) + item = _RunSpanGamut(item); + } + + return "

" + item + "

\n"; + } + ); + + // attacklab: strip sentinel + list_str = list_str.replace(/~0/g,""); + + g_list_level--; + return list_str; +} + + +var _DoCodeBlocks = function(text) { +// +// Process Markdown `

` blocks.
+//  
+
+	/*
+		text = text.replace(text,
+			/(?:\n\n|^)
+			(								// $1 = the code block -- one or more lines, starting with a space/tab
+				(?:
+					(?:[ ]{4}|\t)			// Lines must start with a tab or a tab-width of spaces - attacklab: g_tab_width
+					.*\n+
+				)+
+			)
+			(\n*[ ]{0,3}[^ \t\n]|(?=~0))	// attacklab: g_tab_width
+		/g,function(){...});
+	*/
+
+	// attacklab: sentinel workarounds for lack of \A and \Z, safari\khtml bug
+	text += "~0";
+	
+	text = text.replace(/(?:\n\n|^)((?:(?:[ ]{4}|\t).*\n+)+)(\n*[ ]{0,3}[^ \t\n]|(?=~0))/g,
+		function(wholeMatch,m1,m2) {
+			var codeblock = m1;
+			var nextChar = m2;
+		
+			codeblock = _EncodeCode( _Outdent(codeblock));
+			codeblock = _Detab(codeblock);
+			codeblock = codeblock.replace(/^\n+/g,""); // trim leading newlines
+			codeblock = codeblock.replace(/\n+$/g,""); // trim trailing whitespace
+
+			codeblock = "" + codeblock + "\n";
+
+			return hashBlock(codeblock) + nextChar;
+		}
+	);
+
+	// attacklab: strip sentinel
+	text = text.replace(/~0/,"");
+
+	return text;
+}
+
+var hashBlock = function(text) {
+	text = text.replace(/(^\n+|\n+$)/g,"");
+	return "\n\n~K" + (g_html_blocks.push(text)-1) + "K\n\n";
+}
+
+
+var _DoCodeSpans = function(text) {
+//
+//   *  Backtick quotes are used for  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:
+//	 
+//		 Just type foo `bar` baz at the prompt.
+//	 
+//	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 `bar` ...
+//
+
+	/*
+		text = text.replace(/
+			(^|[^\\])					// Character before opening ` can't be a backslash
+			(`+)						// $2 = Opening run of `
+			(							// $3 = The code block
+				[^\r]*?
+				[^`]					// attacklab: work around lack of lookbehind
+			)
+			\2							// Matching closer
+			(?!`)
+		/gm, function(){...});
+	*/
+
+	text = text.replace(/(^|[^\\])(`+)([^\r]*?[^`])\2(?!`)/gm,
+		function(wholeMatch,m1,m2,m3,m4) {
+			var c = m3;
+			c = c.replace(/^([ \t]*)/g,"");	// leading whitespace
+			c = c.replace(/[ \t]*$/g,"");	// trailing whitespace
+			c = _EncodeCode(c);
+			return m1+""+c+"";
+		});
+
+	return text;
+}
+
+
+var _EncodeCode = function(text) {
+//
+// 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.
+	text = text.replace(/&/g,"&");
+
+	// Do the angle bracket song and dance:
+	text = text.replace(//g,">");
+
+	// Now, escape characters that are magic in Markdown:
+	text = escapeCharacters(text,"\*_{}[]\\",false);
+
+// jj the line above breaks this:
+//---
+
+//* Item
+
+//   1. Subitem
+
+//            special char: *
+//---
+
+	return text;
+}
+
+
+var _DoItalicsAndBold = function(text) {
+
+	//  must go first:
+	text = text.replace(/(\*\*|__)(?=\S)([^\r]*?\S[*_]*)\1/g,
+		"$2");
+
+	text = text.replace(/(\*|_)(?=\S)([^\r]*?\S)\1/g,
+		"$2");
+
+	return text;
+}
+
+
+var _DoBlockQuotes = function(text) {
+
+	/*
+		text = text.replace(/
+		(								// Wrap whole match in $1
+			(
+				^[ \t]*>[ \t]?			// '>' at the start of a line
+				.+\n					// rest of the first line
+				(.+\n)*					// subsequent consecutive lines
+				\n*						// blanks
+			)+
+		)
+		/gm, function(){...});
+	*/
+
+	text = text.replace(/((^[ \t]*>[ \t]?.+\n(.+\n)*\n*)+)/gm,
+		function(wholeMatch,m1) {
+			var bq = m1;
+
+			// attacklab: hack around Konqueror 3.5.4 bug:
+			// "----------bug".replace(/^-/g,"") == "bug"
+
+			bq = bq.replace(/^[ \t]*>[ \t]?/gm,"~0");	// trim one level of quoting
+
+			// attacklab: clean up hack
+			bq = bq.replace(/~0/g,"");
+
+			bq = bq.replace(/^[ \t]+$/gm,"");		// trim whitespace-only lines
+			bq = _RunBlockGamut(bq);				// recurse
+			
+			bq = bq.replace(/(^|\n)/g,"$1  ");
+			// These leading spaces screw with  content, so we need to fix that:
+			bq = bq.replace(
+					/(\s*[^\r]+?<\/pre>)/gm,
+				function(wholeMatch,m1) {
+					var pre = m1;
+					// attacklab: hack around Konqueror 3.5.4 bug:
+					pre = pre.replace(/^  /mg,"~0");
+					pre = pre.replace(/~0/g,"");
+					return pre;
+				});
+			
+			return hashBlock("\n" + bq + "\n");
+		});
+	return text;
+}
+
+
+var _FormParagraphs = function(text) {
+//
+//  Params:
+//    $text - string to process with html  tags
+//
+
+	// Strip leading and trailing lines:
+	text = text.replace(/^\n+/g,"");
+	text = text.replace(/\n+$/g,"");
+
+	var grafs = text.split(/\n{2,}/g);
+	var grafsOut = new Array();
+
+	//
+	// Wrap 
 tags.
+	//
+	var end = grafs.length;
+	for (var i=0; i= 0) {
+			grafsOut.push(str);
+		}
+		else if (str.search(/\S/) >= 0) {
+			str = _RunSpanGamut(str);
+			str = str.replace(/^([ \t]*)/g,"
");
+			str += ""
+			grafsOut.push(str);
+		}
+
+	}
+
+	//
+	// Unhashify HTML blocks
+	//
+	end = grafsOut.length;
+	for (var i=0; i= 0) {
+			var blockText = g_html_blocks[RegExp.$1];
+			blockText = blockText.replace(/\$/g,"$$$$"); // Escape any dollar signs
+			grafsOut[i] = grafsOut[i].replace(/~K\d+K/,blockText);
+		}
+	}
+
+	return grafsOut.join("\n\n");
+}
+
+
+var _EncodeAmpsAndAngles = function(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 = text.replace(/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/g,"&");
+	
+	// Encode naked <'s
+	text = text.replace(/<(?![a-z\/?\$!])/gi,"<");
+	
+	return text;
+}
+
+
+var _EncodeBackslashEscapes = function(text) {
+//
+//   Parameter:  String.
+//   Returns:	The string, with after processing the following backslash
+//			   escape sequences.
+//
+
+	// attacklab: The polite way to do this is with the new
+	// escapeCharacters() function:
+	//
+	// 	text = escapeCharacters(text,"\\",true);
+	// 	text = escapeCharacters(text,"`*_{}[]()>#+-.!",true);
+	//
+	// ...but we're sidestepping its use of the (slow) RegExp constructor
+	// as an optimization for Firefox.  This function gets called a LOT.
+
+	text = text.replace(/\\(\\)/g,escapeCharacters_callback);
+	text = text.replace(/\\([`*_{}\[\]()>#+-.!])/g,escapeCharacters_callback);
+	return text;
+}
+
+
+var _DoAutoLinks = function(text) {
+
+	text = text.replace(/<((https?|ftp|dict):[^'">\s]+)>/gi,"$1");
+
+	// Email addresses: 
+
+	/*
+		text = text.replace(/
+			<
+			(?:mailto:)?
+			(
+				[-.\w]+
+				\@
+				[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+
+			)
+			>
+		/gi, _DoAutoLinks_callback());
+	*/
+	text = text.replace(/<(?:mailto:)?([-.\w]+\@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+)>/gi,
+		function(wholeMatch,m1) {
+			return _EncodeEmailAddress( _UnescapeSpecialChars(m1) );
+		}
+	);
+
+	return text;
+}
+
+
+var _EncodeEmailAddress = function(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.:
+//
+//	foo
+//	   @example.com
+//
+//  Based on a filter by Matthew Wickline, posted to the BBEdit-Talk
+//  mailing list: 
+//
+
+	// attacklab: why can't javascript speak hex?
+	function char2hex(ch) {
+		var hexDigits = '0123456789ABCDEF';
+		var dec = ch.charCodeAt(0);
+		return(hexDigits.charAt(dec>>4) + hexDigits.charAt(dec&15));
+	}
+
+	var encode = [
+		function(ch){return "&#"+ch.charCodeAt(0)+";";},
+		function(ch){return "&#x"+char2hex(ch)+";";},
+		function(ch){return ch;}
+	];
+
+	addr = "mailto:" + addr;
+
+	addr = addr.replace(/./g, function(ch) {
+		if (ch == "@") {
+		   	// this *must* be encoded. I insist.
+			ch = encode[Math.floor(Math.random()*2)](ch);
+		} else if (ch !=":") {
+			// leave ':' alone (to spot mailto: later)
+			var r = Math.random();
+			// roughly 10% raw, 45% hex, 45% dec
+			ch =  (
+					r > .9  ?	encode[2](ch)   :
+					r > .45 ?	encode[1](ch)   :
+								encode[0](ch)
+				);
+		}
+		return ch;
+	});
+
+	addr = "" + addr + "";
+	addr = addr.replace(/">.+:/g,"\">"); // strip the mailto: from the visible part
+
+	return addr;
+}
+
+
+var _UnescapeSpecialChars = function(text) {
+//
+// Swap back in all the special characters we've hidden.
+//
+	text = text.replace(/~E(\d+)E/g,
+		function(wholeMatch,m1) {
+			var charCodeToReplace = parseInt(m1);
+			return String.fromCharCode(charCodeToReplace);
+		}
+	);
+	return text;
+}
+
+
+var _Outdent = function(text) {
+//
+// Remove one level of line-leading tabs or spaces
+//
+
+	// attacklab: hack around Konqueror 3.5.4 bug:
+	// "----------bug".replace(/^-/g,"") == "bug"
+
+	text = text.replace(/^(\t|[ ]{1,4})/gm,"~0"); // attacklab: g_tab_width
+
+	// attacklab: clean up hack
+	text = text.replace(/~0/g,"")
+
+	return text;
+}
+
+var _Detab = function(text) {
+// attacklab: Detab's completely rewritten for speed.
+// In perl we could fix it by anchoring the regexp with \G.
+// In javascript we're less fortunate.
+
+	// expand first n-1 tabs
+	text = text.replace(/\t(?=\t)/g,"    "); // attacklab: g_tab_width
+
+	// replace the nth with two sentinels
+	text = text.replace(/\t/g,"~A~B");
+
+	// use the sentinel to anchor our regex so it doesn't explode
+	text = text.replace(/~B(.+?)~A/g,
+		function(wholeMatch,m1,m2) {
+			var leadingText = m1;
+			var numSpaces = 4 - leadingText.length % 4;  // attacklab: g_tab_width
+
+			// there *must* be a better way to do this:
+			for (var i=0; i  
+All rights reserved.
+
+Original Markdown copyright (c) 2004, John Gruber  
+  
+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/perlMarkdown/Markdown License.txt b/perlMarkdown/Markdown License.txt
new file mode 100644
index 0000000..6d76506
--- /dev/null
+++ b/perlMarkdown/Markdown License.txt	
@@ -0,0 +1,30 @@
+Copyright (c) 2004, John Gruber  
+  
+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/perlMarkdown/Markdown-1.0.2b2.pl b/perlMarkdown/Markdown-1.0.2b2.pl
new file mode 100644
index 0000000..5c78edd
--- /dev/null
+++ b/perlMarkdown/Markdown-1.0.2b2.pl
@@ -0,0 +1,1509 @@
+#!/usr/bin/perl
+
+#
+# Markdown -- A text-to-HTML conversion tool for web writers
+#
+# Copyright (c) 2004-2005 John Gruber
+# 
+#
+
+
+package Markdown;
+require 5.006_000;
+use strict;
+use warnings;
+
+use Digest::MD5 qw(md5_hex);
+use vars qw($VERSION);
+$VERSION = '1.0.2b2';
+# Sat 26 Mar 2005
+
+## Disabled; causes problems under Perl 5.6.1:
+# use utf8;
+# binmode( STDOUT, ":utf8" );  # c.f.: http://acis.openlib.org/dev/perl-unicode-struggle.html
+
+
+#
+# Global default settings:
+#
+my $g_empty_element_suffix = " />";     # Change to ">" for HTML output
+my $g_tab_width = 4;
+
+
+#
+# Globals:
+#
+
+# Regex to match balanced [brackets]. See Friedl's
+# "Mastering Regular Expressions", 2nd Ed., pp. 328-331.
+my $g_nested_brackets;
+$g_nested_brackets = qr{
+  (?>                 # Atomic matching
+     [^\[\]]+              # Anything other than brackets
+   | 
+     \[
+     (??{ $g_nested_brackets })    # Recursive set of nested brackets
+     \]
+  )*
+}x;
+
+
+# Table of hash values for escaped characters:
+my %g_escape_table;
+foreach my $char (split //, '\\`*_{}[]()>#+-.!') {
+  $g_escape_table{$char} = md5_hex($char);
+}
+
+
+# Global hashes, used by various utility routines
+my %g_urls;
+my %g_titles;
+my %g_html_blocks;
+
+# Used to track when we're inside an ordered or unordered list
+# (see _ProcessListItems() for details):
+my $g_list_level = 0;
+
+
+#### Blosxom plug-in interface ##########################################
+
+# Set $g_blosxom_use_meta to 1 to use Blosxom's meta plug-in to determine
+# which posts Markdown should process, using a "meta-markup: markdown"
+# header. If it's set to 0 (the default), Markdown will process all
+# entries.
+my $g_blosxom_use_meta = 0;
+
+sub start { 1; }
+sub story {
+  my($pkg, $path, $filename, $story_ref, $title_ref, $body_ref) = @_;
+
+  if ( (! $g_blosxom_use_meta) or
+       (defined($meta::markup) and ($meta::markup =~ /^\s*markdown\s*$/i))
+       ){
+      $$body_ref  = Markdown($$body_ref);
+     }
+     1;
+}
+
+
+#### Movable Type plug-in interface #####################################
+eval {require MT};  # Test to see if we're running in MT.
+unless ($@) {
+    require MT;
+    import  MT;
+    require MT::Template::Context;
+    import  MT::Template::Context;
+
+  eval {require MT::Plugin};  # Test to see if we're running >= MT 3.0.
+  unless ($@) {
+    require MT::Plugin;
+    import  MT::Plugin;
+    my $plugin = new MT::Plugin({
+      name => "Markdown",
+      description => "A plain-text-to-HTML formatting plugin. (Version: $VERSION)",
+      doc_link => 'http://daringfireball.net/projects/markdown/'
+    });
+    MT->add_plugin( $plugin );
+  }
+
+  MT::Template::Context->add_container_tag(MarkdownOptions => sub {
+    my $ctx   = shift;
+    my $args = shift;
+    my $builder = $ctx->stash('builder');
+    my $tokens = $ctx->stash('tokens');
+
+    if (defined ($args->{'output'}) ) {
+      $ctx->stash('markdown_output', lc $args->{'output'});
+    }
+
+    defined (my $str = $builder->build($ctx, $tokens) )
+      or return $ctx->error($builder->errstr);
+    $str;    # return value
+  });
+
+  MT->add_text_filter('markdown' => {
+    label     => 'Markdown',
+    docs      => 'http://daringfireball.net/projects/markdown/',
+    on_format => sub {
+      my $text = shift;
+      my $ctx  = shift;
+      my $raw  = 0;
+        if (defined $ctx) {
+          my $output = $ctx->stash('markdown_output'); 
+        if (defined $output  &&  $output =~ m/^html/i) {
+          $g_empty_element_suffix = ">";
+          $ctx->stash('markdown_output', '');
+        }
+        elsif (defined $output  &&  $output eq 'raw') {
+          $raw = 1;
+          $ctx->stash('markdown_output', '');
+        }
+        else {
+          $raw = 0;
+          $g_empty_element_suffix = " />";
+        }
+      }
+      $text = $raw ? $text : Markdown($text);
+      $text;
+    },
+  });
+
+  # If SmartyPants is loaded, add a combo Markdown/SmartyPants text filter:
+  my $smartypants;
+
+  {
+    no warnings "once";
+    $smartypants = $MT::Template::Context::Global_filters{'smarty_pants'};
+  }
+
+  if ($smartypants) {
+    MT->add_text_filter('markdown_with_smartypants' => {
+      label     => 'Markdown With SmartyPants',
+      docs      => 'http://daringfireball.net/projects/markdown/',
+      on_format => sub {
+        my $text = shift;
+        my $ctx  = shift;
+        if (defined $ctx) {
+          my $output = $ctx->stash('markdown_output'); 
+          if (defined $output  &&  $output eq 'html') {
+            $g_empty_element_suffix = ">";
+          }
+          else {
+            $g_empty_element_suffix = " />";
+          }
+        }
+        $text = Markdown($text);
+        $text = $smartypants->($text, '1');
+      },
+    });
+  }
+}
+else {
+#### BBEdit/command-line text filter interface ##########################
+# Needs to be hidden from MT (and Blosxom when running in static mode).
+
+    # We're only using $blosxom::version once; tell Perl not to warn us:
+  no warnings 'once';
+    unless ( defined($blosxom::version) ) {
+    use warnings;
+
+    #### Check for command-line switches: #################
+    my %cli_opts;
+    use Getopt::Long;
+    Getopt::Long::Configure('pass_through');
+    GetOptions(\%cli_opts,
+      'version',
+      'shortversion',
+      'html4tags',
+    );
+    if ($cli_opts{'version'}) {    # Version info
+      print "\nThis is Markdown, version $VERSION.\n";
+      print "Copyright 2004 John Gruber\n";
+      print "http://daringfireball.net/projects/markdown/\n\n";
+      exit 0;
+    }
+    if ($cli_opts{'shortversion'}) {    # Just the version number string.
+      print $VERSION;
+      exit 0;
+    }
+    if ($cli_opts{'html4tags'}) {      # Use HTML tag style instead of XHTML
+      $g_empty_element_suffix = ">";
+    }
+
+
+    #### Process incoming text: ###########################
+    my $text;
+    {
+      local $/;               # Slurp the whole file
+      $text = <>;
+    }
+        print Markdown($text);
+    }
+}
+
+
+
+sub Markdown {
+#
+# 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 
+# and  tags get encoded.
+#
+  my $text = shift;
+
+  # Clear the global 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):
+  %g_urls = ();
+  %g_titles = ();
+  %g_html_blocks = ();
+
+
+  # Standardize line endings:
+  $text =~ s{\r\n}{\n}g;   # DOS to Unix
+  $text =~ s{\r}{\n}g;   # Mac to Unix
+
+  # Make sure $text ends with a couple of newlines:
+  $text .= "\n\n";
+
+  # Convert all tabs to spaces.
+  $text = _Detab($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+/ .
+  $text =~ s/^[ \t]+$//mg;
+
+  # Turn block-level HTML blocks into hash entries
+  $text = _HashHTMLBlocks($text);
+
+  # Strip link definitions, store in hashes.
+  $text = _StripLinkDefinitions($text);
+
+  $text = _RunBlockGamut($text);
+
+  $text = _UnescapeSpecialChars($text);
+
+  return $text . "\n";
+}
+
+
+sub _StripLinkDefinitions {
+#
+# Strips link definitions from text, stores the URLs and titles in
+# hash references.
+#
+  my $text = shift;
+  my $less_than_tab = $g_tab_width - 1;
+
+  # Link defs are in the form: ^[id]: url "optional title"
+  while ($text =~ s{
+            ^[ ]{0,$less_than_tab}\[(.+)\]:  # id = $1
+              [ \t]*
+              \n?        # maybe *one* newline
+              [ \t]*
+            ?      # url = $2
+              [ \t]*
+              \n?        # maybe one newline
+              [ \t]*
+            (?:
+              (?<=\s)      # lookbehind for whitespace
+              ["(]
+              (.+?)      # title = $3
+              [")]
+              [ \t]*
+            )?  # title is optional
+            (?:\n+|\Z)
+          }
+          {}mx) {
+    $g_urls{lc $1} = _EncodeAmpsAndAngles( $2 );  # Link IDs are case-insensitive
+    if ($3) {
+      $g_titles{lc $1} = $3;
+      $g_titles{lc $1} =~ s/"/"/g;
+    }
+  }
+
+  return $text;
+}
+
+
+sub _HashHTMLBlocks {
+  my $text = shift;
+  my $less_than_tab = $g_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 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:
+  my $block_tags_a = qr/p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|ins|del/;
+  my $block_tags_b = qr/p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math/;
+
+  # First, look for nested blocks, e.g.:
+  #   

+  #     
+  #     tags for inner block must be indented.
+  #     
+  #   
+  #
+  # 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 `` and stop at the first ``.
+  $text =~ s{
+        (            # save in $1
+          ^          # start of line  (with /m)
+          <($block_tags_a)  # start tag = $2
+          \b          # word break
+          (.*\n)*?      # any number of lines, minimally matching
+                  # the matching end tag
+          [ \t]*        # trailing spaces/tabs
+          (?=\n+|\Z)  # followed by a newline or end of document
+        )
+      }{
+        my $key = md5_hex($1);
+        $g_html_blocks{$key} = $1;
+        "\n\n" . $key . "\n\n";
+      }egmx;
+
+
+  #
+  # Now match more liberally, simply from `\n` to `\n`
+  #
+  $text =~ s{
+        (            # save in $1
+          ^          # start of line  (with /m)
+          <($block_tags_b)  # start tag = $2
+          \b          # word break
+          (.*\n)*?      # any number of lines, minimally matching
+          .*        # the matching end tag
+          [ \t]*        # trailing spaces/tabs
+          (?=\n+|\Z)  # followed by a newline or end of document
+        )
+      }{
+        my $key = md5_hex($1);
+        $g_html_blocks{$key} = $1;
+        "\n\n" . $key . "\n\n";
+      }egmx;
+  # Special case just for . It was easier to make a special case than
+  # to make the other regex more complicated.  
+  $text =~ s{
+        (?:
+          (?<=\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
+        )
+      }{
+        my $key = md5_hex($1);
+        $g_html_blocks{$key} = $1;
+        "\n\n" . $key . "\n\n";
+      }egx;
+
+  # Special case for standalone HTML comments:
+  $text =~ s{
+        (?:
+          (?<=\n\n)    # Starting after a blank line
+          |        # or
+          \A\n?      # the beginning of the doc
+        )
+        (            # save in $1
+          [ ]{0,$less_than_tab}
+          (?s:
+            
+          )
+          [ \t]*
+          (?=\n{2,}|\Z)    # followed by a blank line or end of document
+        )
+      }{
+        my $key = md5_hex($1);
+        $g_html_blocks{$key} = $1;
+        "\n\n" . $key . "\n\n";
+      }egx;
+
+
+  return $text;
+}
+
+
+sub _RunBlockGamut {
+#
+# These are all the transformations that form block-level
+# tags like paragraphs, headers, and list items.
+#
+  my $text = shift;
+
+  $text = _DoHeaders($text);
+
+  # Do Horizontal Rules:
+  $text =~ s{^[ ]{0,2}([ ]?\*[ ]?){3,}[ \t]*$}{\n tags around block-level tags.
+  $text = _HashHTMLBlocks($text);
+  $text = _FormParagraphs($text);
+
+  return $text;
+}
+
+
+sub _RunSpanGamut {
+#
+# These are all the transformations that occur *within* block-level
+# tags like paragraphs, headers, and list items.
+#
+  my $text = shift;
+
+  $text = _EscapeSpecialCharsWithinTagAttributes($text);
+  $text = _DoCodeSpans($text);
+  $text = _EncodeBackslashEscapes($text);
+
+  # Process anchor and image tags. Images must come first,
+  # because ![foo][f] looks like an anchor.
+  $text = _DoImages($text);
+  $text = _DoAnchors($text);
+
+  # Make links out of things like ``
+  # Must come after _DoAnchors(), because you can use < and >
+  # delimiters in inline links like [this]().
+  $text = _DoAutoLinks($text);
+  $text = _EncodeAmpsAndAngles($text);
+  $text = _DoItalicsAndBold($text);
+
+  # Do hard breaks:
+  $text =~ s/ {2,}\n/  -- encode [\ ` * _] so they
+# don't conflict with their use in Markdown for code, 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.
+#
+  my $text = shift;
+  my $tokens ||= _TokenizeHTML($text);
+  $text = '';   # rebuild $text from the tokens
+
+  foreach my $cur_token (@$tokens) {
+    if ($cur_token->[0] eq "tag") {
+      $cur_token->[1] =~  s! \\ !$g_escape_table{'\\'}!gx;
+      $cur_token->[1] =~  s! `  !$g_escape_table{'`'}!gx;
+      $cur_token->[1] =~  s! \* !$g_escape_table{'*'}!gx;
+      $cur_token->[1] =~  s! _  !$g_escape_table{'_'}!gx;
+    }
+    $text .= $cur_token->[1];
+  }
+  return $text;
+}
+
+
+sub _DoAnchors {
+#
+# Turn Markdown link shortcuts into XHTML  tags.
+#
+  my $text = shift;
+
+  #
+  # First, handle reference-style links: [link text] [id]
+  #
+  $text =~ s{
+    (          # wrap whole match in $1
+      \[
+        ($g_nested_brackets)  # link text = $2
+      \]
+
+      [ ]?        # one optional space
+      (?:\n[ ]*)?    # one optional newline followed by spaces
+
+      \[
+        (.*?)    # id = $3
+      \]
+    )
+  }{
+    my $result;
+    my $whole_match = $1;
+    my $link_text   = $2;
+    my $link_id     = lc $3;
+
+    if ($link_id eq "") {
+      $link_id = lc $link_text;     # for shortcut links like [this][].
+    }
+
+    if (defined $g_urls{$link_id}) {
+      my $url = $g_urls{$link_id};
+      $url =~ s! \* !$g_escape_table{'*'}!gx;    # We've got to encode these to avoid
+      $url =~ s!  _ !$g_escape_table{'_'}!gx;    # conflicting with italics/bold.
+      $result = "?  # href = $3
+        [ \t]*
+      (      # $4
+        (['"])  # quote char = $5
+        (.*?)    # Title = $6
+        \5    # matching quote
+      )?      # title is optional
+      \)
+    )
+  }{
+    my $result;
+    my $whole_match = $1;
+    my $link_text   = $2;
+    my $url        = $3;
+    my $title    = $6;
+
+    $url =~ s! \* !$g_escape_table{'*'}!gx;    # We've got to encode these to avoid
+    $url =~ s!  _ !$g_escape_table{'_'}!gx;    # conflicting with italics/bold.
+    $result = " tags.
+#
+  my $text = shift;
+
+  #
+  # First, handle reference-style labeled images: ![alt text][id]
+  #
+  $text =~ s{
+    (        # wrap whole match in $1
+      !\[
+        (.*?)    # alt text = $2
+      \]
+
+      [ ]?        # one optional space
+      (?:\n[ ]*)?    # one optional newline followed by spaces
+
+      \[
+        (.*?)    # id = $3
+      \]
+
+    )
+  }{
+    my $result;
+    my $whole_match = $1;
+    my $alt_text    = $2;
+    my $link_id     = lc $3;
+
+    if ($link_id eq "") {
+      $link_id = lc $alt_text;     # for shortcut links like ![this][].
+    }
+
+    $alt_text =~ s/"/"/g;
+    if (defined $g_urls{$link_id}) {
+      my $url = $g_urls{$link_id};
+      $url =~ s! \* !$g_escape_table{'*'}!gx;    # We've got to encode these to avoid
+      $url =~ s!  _ !$g_escape_table{'_'}!gx;    # conflicting with italics/bold.
+      $result = "?  # src url = $3
+        [ \t]*
+      (      # $4
+        (['"])  # quote char = $5
+        (.*?)    # title = $6
+        \5    # matching quote
+        [ \t]*
+      )?      # title is optional
+      \)
+    )
+  }{
+    my $result;
+    my $whole_match = $1;
+    my $alt_text    = $2;
+    my $url        = $3;
+    my $title    = '';
+    if (defined($6)) {
+      $title    = $6;
+    }
+
+    $alt_text =~ s/"/"/g;
+    $title    =~ s/"/"/g;
+    $url =~ s! \* !$g_escape_table{'*'}!gx;    # We've got to encode these to avoid
+    $url =~ s!  _ !$g_escape_table{'_'}!gx;    # conflicting with italics/bold.
+    $result = ""  .  _RunSpanGamut($1)  .  "\n\n";
+  }egmx;
+
+  $text =~ s{ ^(.+)[ \t]*\n-+[ \t]*\n+ }{
+    ""  .  _RunSpanGamut($1)  .  "\n\n";
+  }egmx;
+
+
+  # atx-style headers:
+  #  # Header 1
+  #  ## Header 2
+  #  ## Header 2 with closing hashes ##
+  #  ...
+  #  ###### Header 6
+  #
+  $text =~ s{
+      ^(\#{1,6})  # $1 = string of #'s
+      [ \t]*
+      (.+?)    # $2 = Header text
+      [ \t]*
+      \#*      # optional closing #'s (not counted)
+      \n+
+    }{
+      my $h_level = length($1);
+      ""  .  _RunSpanGamut($2)  .  "\n\n";
+    }egmx;
+
+  return $text;
+}
+
+
+sub _DoLists {
+#
+# Form HTML ordered (numbered) and unordered (bulleted) lists.
+#
+  my $text = shift;
+  my $less_than_tab = $g_tab_width - 1;
+
+  # Re-usable patterns to match list item bullets and number markers:
+  my $marker_ul  = qr/[*+-]/;
+  my $marker_ol  = qr/\d+[.]/;
+  my $marker_any = qr/(?:$marker_ul|$marker_ol)/;
+
+  # Re-usable pattern to match any entirel ul or ol list:
+  my $whole_list = qr{
+    (                # $1 = whole list
+      (                # $2
+      [ ]{0,$less_than_tab}
+      (${marker_any})        # $3 = first list item marker
+      [ \t]+
+      )
+      (?s:.+?)
+      (                # $4
+        \z
+      |
+        \n{2,}
+        (?=\S)
+        (?!            # Negative lookahead for another list item marker
+        [ \t]*
+        ${marker_any}[ \t]+
+        )
+      )
+    )
+  }mx;
+
+  # We use a different prefix before nested lists than top-level lists.
+  # See extended comment in _ProcessListItems().
+  #
+  # Note: There's a bit of duplication here. My original implementation
+  # created a scalar regex pattern as the conditional result of the test on
+  # $g_list_level, and then only ran the $text =~ s{...}{...}egmx
+  # substitution once, using the scalar as the pattern. This worked,
+  # everywhere except when running under MT on my hosting account at Pair
+  # Networks. There, this caused all rebuilds to be killed by the reaper (or
+  # perhaps they crashed, but that seems incredibly unlikely given that the
+  # same script on the same server ran fine *except* under MT. I've spent
+  # more time trying to figure out why this is happening than I'd like to
+  # admit. My only guess, backed up by the fact that this workaround works,
+  # is that Perl optimizes the substition when it can figure out that the
+  # pattern will never change, and when this optimization isn't on, we run
+  # afoul of the reaper. Thus, the slightly redundant code that uses two
+  # static s/// patterns rather than one conditional pattern.
+
+  if ($g_list_level) {
+    $text =~ s{
+        ^
+        $whole_list
+      }{
+        my $list = $1;
+        my $list_type = ($3 =~ m/$marker_ul/) ? "ul" : "ol";
+
+        # Turn double returns into triple returns, so that we can make a
+        # paragraph for the last item in a list, if necessary:
+        $list =~ s/\n{2,}/\n\n\n/g;
+        my $result = _ProcessListItems($list, $marker_any);
+
+        # Trim any trailing whitespace, to put the closing ``
+        # 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.
+        $result =~ s{\s+$}{};
+        $result = "<$list_type>" . $result . "\n";
+        $result;
+      }egmx;
+  }
+  else {
+    $text =~ s{
+        (?:(?<=\n\n)|\A\n?)
+        $whole_list
+      }{
+        my $list = $1;
+        my $list_type = ($3 =~ m/$marker_ul/) ? "ul" : "ol";
+        # Turn double returns into triple returns, so that we can make a
+        # paragraph for the last item in a list, if necessary:
+        $list =~ s/\n{2,}/\n\n\n/g;
+        my $result = _ProcessListItems($list, $marker_any);
+        $result = "<$list_type>\n" . $result . "\n";
+        $result;
+      }egmx;
+  }
+
+
+  return $text;
+}
+
+
+sub _ProcessListItems {
+#
+#  Process the contents of a single ordered or unordered list, splitting it
+#  into individual list items.
+#
+
+  my $list_str = shift;
+  my $marker_any = shift;
+
+
+  # The $g_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.".
+
+  $g_list_level++;
+
+  # trim trailing blank lines:
+  $list_str =~ s/\n{2,}\z/\n/;
+
+
+  $list_str =~ s{
+    (\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]+))
+  }{
+    my $item = $4;
+    my $leading_line = $1;
+    my $leading_space = $2;
+
+    if ($leading_line or ($item =~ m/\n{2,}/)) {
+      $item = _RunBlockGamut(_Outdent($item));
+    }
+    else {
+      # Recursion for sub-lists:
+      $item = _DoLists(_Outdent($item));
+      chomp $item;
+      $item = _RunSpanGamut($item);
+    }
+
+    "" . $item . "\n";
+  }egmx;
+
+  $g_list_level--;
+  return $list_str;
+}
+
+
+
+sub _DoCodeBlocks {
+#
+#  Process Markdown `` blocks.
+#  
+
+  my $text = shift;
+
+  $text =~ s{
+      (?:\n\n|\A)
+      (              # $1 = the code block -- one or more lines, starting with a space/tab
+        (?:
+          (?:[ ]{$g_tab_width} | \t)  # Lines must start with a tab or a tab-width of spaces
+          .*\n+
+        )+
+      )
+      ((?=^[ ]{0,$g_tab_width}\S)|\Z)  # Lookahead for non-space at line-start, or end of doc
+    }{
+      my $codeblock = $1;
+      my $result; # return value
+
+      $codeblock = _EncodeCode(_Outdent($codeblock));
+      $codeblock = _Detab($codeblock);
+      $codeblock =~ s/\A\n+//; # trim leading newlines
+      $codeblock =~ s/\s+\z//; # trim trailing whitespace
+
+      $result = "\n\n" . $codeblock . "\n\n\n";
+
+      $result;
+    }egmx;
+
+  return $text;
+}
+
+
+sub _DoCodeSpans {
+#
+#   *  Backtick quotes are used for  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:
+#     
+#         Just type foo `bar` baz at the prompt.
+#     
+#    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 `bar` ...
+#
+
+  my $text = shift;
+
+  $text =~ s@
+      (?$c";
+    @egsx;
+
+  return $text;
+}
+
+
+sub _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.
+#
+    local $_ = shift;
+
+  # Encode all ampersands; HTML entities are not
+  # entities within a Markdown code span.
+  s/&/&/g;
+
+  # Encode $'s, but only if we're running under Blosxom.
+  # (Blosxom interpolates Perl variables in article bodies.)
+  {
+    no warnings 'once';
+      if (defined($blosxom::version)) {
+        s/\$/$/g;  
+      }
+    }
+
+
+  # Do the angle bracket song and dance:
+  s! <  !<!gx;
+  s! >  !>!gx;
+
+  # Now, escape characters that are magic in Markdown:
+  s! \* !$g_escape_table{'*'}!gx;
+  s! _  !$g_escape_table{'_'}!gx;
+  s! {  !$g_escape_table{'{'}!gx;
+  s! }  !$g_escape_table{'}'}!gx;
+  s! \[ !$g_escape_table{'['}!gx;
+  s! \] !$g_escape_table{']'}!gx;
+  s! \\ !$g_escape_table{'\\'}!gx;
+
+  return $_;
+}
+
+
+sub _DoItalicsAndBold {
+  my $text = shift;
+
+  #  must go first:
+  $text =~ s{ (\*\*|__) (?=\S) (.+?[*_]*) (?<=\S) \1 }
+    {$2}gsx;
+
+  $text =~ s{ (\*|_) (?=\S) (.+?) (?<=\S) \1 }
+    {$2}gsx;
+
+  return $text;
+}
+
+
+sub _DoBlockQuotes {
+  my $text = shift;
+
+  $text =~ s{
+      (                # 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
+      )+
+      )
+    }{
+      my $bq = $1;
+      $bq =~ s/^[ \t]*>[ \t]?//gm;  # trim one level of quoting
+      $bq =~ s/^[ \t]+$//mg;      # trim whitespace-only lines
+      $bq = _RunBlockGamut($bq);    # recurse
+
+      $bq =~ s/^/  /g;
+      # These leading spaces screw with  content, so we need to fix that:
+      $bq =~ s{
+          (\s*.+?)
+        }{
+          my $pre = $1;
+          $pre =~ s/^  //mg;
+          $pre;
+        }egsx;
+
+      "\n$bq\n\n\n";
+    }egmx;
+
+
+  return $text;
+}
+
+
+sub _FormParagraphs {
+#
+#  Params:
+#    $text - string to process with html  tags
+#
+  my $text = shift;
+
+  # Strip leading and trailing lines:
+  $text =~ s/\A\n+//;
+  $text =~ s/\n+\z//;
+
+  my @grafs = split(/\n{2,}/, $text);
+
+  #
+  # Wrap 
 tags.
+  #
+  foreach (@grafs) {
+    unless (defined( $g_html_blocks{$_} )) {
+      $_ = _RunSpanGamut($_);
+      s/^([ \t]*)/
/;
+      $_ .= "";
+    }
+  }
+
+  #
+  # Unhashify HTML blocks
+  #
+  foreach (@grafs) {
+    if (defined( $g_html_blocks{$_} )) {
+      $_ = $g_html_blocks{$_};
+    }
+  }
+
+  return join "\n\n", @grafs;
+}
+
+
+sub _EncodeAmpsAndAngles {
+# Smart processing for ampersands and angle brackets that need to be encoded.
+
+  my $text = shift;
+
+  # Ampersand-encoding based entirely on Nat Irons's Amputator MT plugin:
+  #   http://bumppo.net/projects/amputator/
+   $text =~ s/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/&/g;
+
+  # Encode naked <'s
+   $text =~ s{<(?![a-z/?\$!])}{<}gi;
+
+  return $text;
+}
+
+
+sub _EncodeBackslashEscapes {
+#
+#   Parameter:  String.
+#   Returns:    The string, with after processing the following backslash
+#               escape sequences.
+#
+    local $_ = shift;
+
+    s! \\\\  !$g_escape_table{'\\'}!gx;    # Must process escaped backslashes first.
+    s! \\`   !$g_escape_table{'`'}!gx;
+    s! \\\*  !$g_escape_table{'*'}!gx;
+    s! \\_   !$g_escape_table{'_'}!gx;
+    s! \\\{  !$g_escape_table{'{'}!gx;
+    s! \\\}  !$g_escape_table{'}'}!gx;
+    s! \\\[  !$g_escape_table{'['}!gx;
+    s! \\\]  !$g_escape_table{']'}!gx;
+    s! \\\(  !$g_escape_table{'('}!gx;
+    s! \\\)  !$g_escape_table{')'}!gx;
+    s! \\>   !$g_escape_table{'>'}!gx;
+    s! \\\#  !$g_escape_table{'#'}!gx;
+    s! \\\+  !$g_escape_table{'+'}!gx;
+    s! \\\-  !$g_escape_table{'-'}!gx;
+    s! \\\.  !$g_escape_table{'.'}!gx;
+    s{ \\!  }{$g_escape_table{'!'}}gx;
+
+    return $_;
+}
+
+
+sub _DoAutoLinks {
+  my $text = shift;
+
+  $text =~ s{<((https?|ftp):[^'">\s]+)>}{$1}gi;
+
+  # Email addresses: 
+  $text =~ s{
+    <
+        (?:mailto:)?
+    (
+      [-.\w]+
+      \@
+      [-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+
+    )
+    >
+  }{
+    _EncodeEmailAddress( _UnescapeSpecialChars($1) );
+  }egix;
+
+  return $text;
+}
+
+
+sub _EncodeEmailAddress {
+#
+#  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.:
+#
+#    foo
+#       @example.com
+#
+#  Based on a filter by Matthew Wickline, posted to the BBEdit-Talk
+#  mailing list: 
+#
+
+  my $addr = shift;
+
+  srand;
+  my @encode = (
+    sub { '&#' .                 ord(shift)   . ';' },
+    sub { '&#x' . sprintf( "%X", ord(shift) ) . ';' },
+    sub {                            shift          },
+  );
+
+  $addr = "mailto:" . $addr;
+
+  $addr =~ s{(.)}{
+    my $char = $1;
+    if ( $char eq '@' ) {
+      # this *must* be encoded. I insist.
+      $char = $encode[int rand 1]->($char);
+    } elsif ( $char ne ':' ) {
+      # leave ':' alone (to spot mailto: later)
+      my $r = rand;
+      # roughly 10% raw, 45% hex, 45% dec
+      $char = (
+        $r > .9   ?  $encode[2]->($char)  :
+        $r < .45  ?  $encode[1]->($char)  :
+               $encode[0]->($char)
+      );
+    }
+    $char;
+  }gex;
+
+  $addr = qq{$addr};
+  $addr =~ s{">.+?:}{">}; # strip the mailto: from the visible part
+
+  return $addr;
+}
+
+
+sub _UnescapeSpecialChars {
+#
+# Swap back in all the special characters we've hidden.
+#
+  my $text = shift;
+
+  while( my($char, $hash) = each(%g_escape_table) ) {
+    $text =~ s/$hash/$char/g;
+  }
+    return $text;
+}
+
+
+sub _TokenizeHTML {
+#
+#   Parameter:  String containing HTML markup.
+#   Returns:    Reference to an array of the tokens comprising the input
+#               string. Each token is either a tag (possibly with nested,
+#               tags contained therein, such as , 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.
+#
+#
+#   Derived from the _tokenize() subroutine from Brad Choate's MTRegex plugin.
+#       
+#
+
+    my $str = shift;
+    my $pos = 0;
+    my $len = length $str;
+    my @tokens;
+
+    my $depth = 6;
+    my $nested_tags = join('|', ('(?:<[a-z/!$](?:[^<>]') x $depth) . (')*>)' x  $depth);
+    my $match = qr/(?s:  ) |  # comment
+                   (?s: <\? .*? \?> ) |              # processing instruction
+                   $nested_tags/ix;                   # nested tags
+
+    while ($str =~ m/($match)/g) {
+        my $whole_tag = $1;
+        my $sec_start = pos $str;
+        my $tag_start = $sec_start - length $whole_tag;
+        if ($pos < $tag_start) {
+            push @tokens, ['text', substr($str, $pos, $tag_start - $pos)];
+        }
+        push @tokens, ['tag', $whole_tag];
+        $pos = pos $str;
+    }
+    push @tokens, ['text', substr($str, $pos, $len - $pos)] if $pos < $len;
+    \@tokens;
+}
+
+
+sub _Outdent {
+#
+# Remove one level of line-leading tabs or spaces
+#
+  my $text = shift;
+
+  $text =~ s/^(\t|[ ]{1,$g_tab_width})//gm;
+  return $text;
+}
+
+
+sub _Detab {
+#
+# Cribbed from a post by Bart Lateur:
+# 
+#
+  my $text = shift;
+
+  $text =~ s{(.*?)\t}{$1.(' ' x ($g_tab_width - length($1) % $g_tab_width))}ge;
+  return $text;
+}
+
+
+1;
+
+__END__
+
+
+=pod
+
+=head1 NAME
+
+B
+
+
+=head1 SYNOPSIS
+
+B [ B<--html4tags> ] [ B<--version> ] [ B<-shortversion> ]
+    [ I ... ]
+
+
+=head1 DESCRIPTION
+
+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  and  as well).
+
+For more information about Markdown's syntax, see:
+
+    http://daringfireball.net/projects/markdown/
+
+
+=head1 OPTIONS
+
+Use "--" to end switch parsing. For example, to open a file named "-z", use:
+
+  Markdown.pl -- -z
+
+=over 4
+
+
+=item B<--html4tags>
+
+Use HTML 4 style for empty element tags, e.g.:
+
+    

+
+instead of Markdown's default XHTML style tags, e.g.:
+
+    

+
+
+=item B<-v>, B<--version>
+
+Display Markdown's version number and copyright information.
+
+
+=item B<-s>, B<--shortversion>
+
+Display the short-form version number.
+
+
+=back
+
+
+
+=head1 BUGS
+
+To file bug reports or feature requests (other than topics listed in the
+Caveats section above) please send email to:
+
+    support@daringfireball.net
+
+Please include with your report: (1) the example input; (2) the output
+you expected; (3) the output Markdown actually produced.
+
+
+=head1 VERSION HISTORY
+
+See the readme file for detailed release notes for this version.
+
+1.0.2b2 - 20 Mar 2005
+
+  +  Fix for nested sub-lists in list-paragraph mode. Previously we got
+    a spurious extra level of `` tags for something like this:
+    
+      *  this
+      
+        *  sub
+      
+        that
+    
+  +  Experimental support for [this] as a synonym for [this][].
+    (Note to self: No test yet for this.)
+    Be sure to test, e.g.: [permutations of this sort of [thing][].]
+
+
+1.0.2b1 - 28  Feb 2005
+
+  +  Fix for backticks within HTML tag: like this
+
+  +  Fix for escaped backticks still triggering code spans:
+  
+      There are two raw backticks here: \` and here: \`, not a code span
+
+1.0.1 - 14 Dec 2004
+
+1.0 - 28 Aug 2004
+
+
+=head1 AUTHOR
+
+    John Gruber
+    http://daringfireball.net
+
+    PHP port and other contributions by Michel Fortin
+    http://michelf.com
+
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright (c) 2003-2005 John Gruber   
+   
+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.
+
+=cut
diff --git a/perlMarkdown/Markdown-1.0.2b7.pl b/perlMarkdown/Markdown-1.0.2b7.pl
new file mode 100644
index 0000000..c3b351f
--- /dev/null
+++ b/perlMarkdown/Markdown-1.0.2b7.pl
@@ -0,0 +1,1642 @@
+#!/usr/bin/env perl
+
+#
+# Markdown -- A text-to-HTML conversion tool for web writers
+#
+# Copyright (c) 2004-2005 John Gruber
+# 
+#
+
+
+package Markdown;
+require 5.006_000;
+use strict;
+use warnings;
+
+use Digest::MD5 qw(md5_hex);
+use vars qw($VERSION);
+$VERSION = '1.0.2b7';
+# Tue 29 Aug 2006
+
+## Disabled; causes problems under Perl 5.6.1:
+# use utf8;
+# binmode( STDOUT, ":utf8" );  # c.f.: http://acis.openlib.org/dev/perl-unicode-struggle.html
+
+#
+# Global default settings:
+#
+my $g_empty_element_suffix = " />";     # Change to ">" for HTML output
+my $g_tab_width = 4;
+
+
+#
+# Globals:
+#
+
+# Regex to match balanced [brackets]. See Friedl's
+# "Mastering Regular Expressions", 2nd Ed., pp. 328-331.
+my $g_nested_brackets;
+$g_nested_brackets = qr{
+	(?> 								# Atomic matching
+	   [^\[\]]+							# Anything other than brackets
+	 | 
+	   \[
+		 (??{ $g_nested_brackets })		# Recursive set of nested brackets
+	   \]
+	)*
+}x;
+
+
+# Table of hash values for escaped characters:
+my %g_escape_table;
+foreach my $char (split //, '\\`*_{}[]()>#+-.!') {
+	$g_escape_table{$char} = md5_hex($char);
+}
+
+
+# Global hashes, used by various utility routines
+my %g_urls;
+my %g_titles;
+my %g_html_blocks;
+
+# Used to track when we're inside an ordered or unordered list
+# (see _ProcessListItems() for details):
+my $g_list_level = 0;
+
+
+#### Blosxom plug-in interface ##########################################
+
+# Set $g_blosxom_use_meta to 1 to use Blosxom's meta plug-in to determine
+# which posts Markdown should process, using a "meta-markup: markdown"
+# header. If it's set to 0 (the default), Markdown will process all
+# entries.
+my $g_blosxom_use_meta = 0;
+
+sub start { 1; }
+sub story {
+	my($pkg, $path, $filename, $story_ref, $title_ref, $body_ref) = @_;
+
+	if ( (! $g_blosxom_use_meta) or
+	     (defined($meta::markup) and ($meta::markup =~ /^\s*markdown\s*$/i))
+	     ){
+			$$body_ref  = Markdown($$body_ref);
+     }
+     1;
+}
+
+
+#### Movable Type plug-in interface #####################################
+eval {require MT};  # Test to see if we're running in MT.
+unless ($@) {
+    require MT;
+    import  MT;
+    require MT::Template::Context;
+    import  MT::Template::Context;
+
+	eval {require MT::Plugin};  # Test to see if we're running >= MT 3.0.
+	unless ($@) {
+		require MT::Plugin;
+		import  MT::Plugin;
+		my $plugin = new MT::Plugin({
+			name => "Markdown",
+			description => "A plain-text-to-HTML formatting plugin. (Version: $VERSION)",
+			doc_link => 'http://daringfireball.net/projects/markdown/'
+		});
+		MT->add_plugin( $plugin );
+	}
+
+	MT::Template::Context->add_container_tag(MarkdownOptions => sub {
+		my $ctx	 = shift;
+		my $args = shift;
+		my $builder = $ctx->stash('builder');
+		my $tokens = $ctx->stash('tokens');
+
+		if (defined ($args->{'output'}) ) {
+			$ctx->stash('markdown_output', lc $args->{'output'});
+		}
+
+		defined (my $str = $builder->build($ctx, $tokens) )
+			or return $ctx->error($builder->errstr);
+		$str;		# return value
+	});
+
+	MT->add_text_filter('markdown' => {
+		label     => 'Markdown',
+		docs      => 'http://daringfireball.net/projects/markdown/',
+		on_format => sub {
+			my $text = shift;
+			my $ctx  = shift;
+			my $raw  = 0;
+		    if (defined $ctx) {
+		    	my $output = $ctx->stash('markdown_output'); 
+				if (defined $output  &&  $output =~ m/^html/i) {
+					$g_empty_element_suffix = ">";
+					$ctx->stash('markdown_output', '');
+				}
+				elsif (defined $output  &&  $output eq 'raw') {
+					$raw = 1;
+					$ctx->stash('markdown_output', '');
+				}
+				else {
+					$raw = 0;
+					$g_empty_element_suffix = " />";
+				}
+			}
+			$text = $raw ? $text : Markdown($text);
+			$text;
+		},
+	});
+
+	# If SmartyPants is loaded, add a combo Markdown/SmartyPants text filter:
+	my $smartypants;
+
+	{
+		no warnings "once";
+		$smartypants = $MT::Template::Context::Global_filters{'smarty_pants'};
+	}
+
+	if ($smartypants) {
+		MT->add_text_filter('markdown_with_smartypants' => {
+			label     => 'Markdown With SmartyPants',
+			docs      => 'http://daringfireball.net/projects/markdown/',
+			on_format => sub {
+				my $text = shift;
+				my $ctx  = shift;
+				if (defined $ctx) {
+					my $output = $ctx->stash('markdown_output'); 
+					if (defined $output  &&  $output eq 'html') {
+						$g_empty_element_suffix = ">";
+					}
+					else {
+						$g_empty_element_suffix = " />";
+					}
+				}
+				$text = Markdown($text);
+				$text = $smartypants->($text, '1');
+			},
+		});
+	}
+}
+else {
+#### BBEdit/command-line text filter interface ##########################
+# Needs to be hidden from MT (and Blosxom when running in static mode).
+
+    # We're only using $blosxom::version once; tell Perl not to warn us:
+	no warnings 'once';
+    unless ( defined($blosxom::version) ) {
+		use warnings;
+
+		#### Check for command-line switches: #################
+		my %cli_opts;
+		use Getopt::Long;
+		Getopt::Long::Configure('pass_through');
+		GetOptions(\%cli_opts,
+			'version',
+			'shortversion',
+			'html4tags',
+		);
+		if ($cli_opts{'version'}) {		# Version info
+			print "\nThis is Markdown, version $VERSION.\n";
+			print "Copyright 2004 John Gruber\n";
+			print "http://daringfireball.net/projects/markdown/\n\n";
+			exit 0;
+		}
+		if ($cli_opts{'shortversion'}) {		# Just the version number string.
+			print $VERSION;
+			exit 0;
+		}
+		if ($cli_opts{'html4tags'}) {			# Use HTML tag style instead of XHTML
+			$g_empty_element_suffix = ">";
+		}
+
+
+		#### Process incoming text: ###########################
+		my $text;
+		{
+			local $/;               # Slurp the whole file
+			$text = <>;
+		}
+        print Markdown($text);
+    }
+}
+
+
+
+sub Markdown {
+#
+# 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 
+# and  tags get encoded.
+#
+	my $text = shift;
+
+	# Clear the global 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):
+	%g_urls = ();
+	%g_titles = ();
+	%g_html_blocks = ();
+
+
+	# Standardize line endings:
+	$text =~ s{\r\n}{\n}g; 	# DOS to Unix
+	$text =~ s{\r}{\n}g; 	# Mac to Unix
+
+	# Make sure $text ends with a couple of newlines:
+	$text .= "\n\n";
+
+	# Convert all tabs to spaces.
+	$text = _Detab($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+/ .
+	$text =~ s/^[ \t]+$//mg;
+
+	# Turn block-level HTML blocks into hash entries
+	$text = _HashHTMLBlocks($text);
+
+	# Strip link definitions, store in hashes.
+	$text = _StripLinkDefinitions($text);
+
+	$text = _RunBlockGamut($text);
+
+	$text = _UnescapeSpecialChars($text);
+
+	return $text . "\n";
+}
+
+
+sub _StripLinkDefinitions {
+#
+# Strips link definitions from text, stores the URLs and titles in
+# hash references.
+#
+	my $text = shift;
+	my $less_than_tab = $g_tab_width - 1;
+
+	# Link defs are in the form: ^[id]: url "optional title"
+	while ($text =~ s{
+						^[ ]{0,$less_than_tab}\[(.+)\]:	# id = $1
+						  [ \t]*
+						  \n?				# maybe *one* newline
+						  [ \t]*
+						?			# url = $2
+						  [ \t]*
+						  \n?				# maybe one newline
+						  [ \t]*
+						(?:
+							(?<=\s)			# lookbehind for whitespace
+							["(]
+							(.+?)			# title = $3
+							[")]
+							[ \t]*
+						)?	# title is optional
+						(?:\n+|\Z)
+					}
+					{}mx) {
+		$g_urls{lc $1} = _EncodeAmpsAndAngles( $2 );	# Link IDs are case-insensitive
+		if ($3) {
+			$g_titles{lc $1} = $3;
+			$g_titles{lc $1} =~ s/"/"/g;
+		}
+	}
+
+	return $text;
+}
+
+
+sub _HashHTMLBlocks {
+	my $text = shift;
+	my $less_than_tab = $g_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 
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:
+	my $block_tags = qr{
+		  (?:
+			p         |  div     |  h[1-6]  |  blockquote  |  pre       |  table  |
+			dl        |  ol      |  ul      |  script      |  noscript  |  form   |
+			fieldset  |  iframe  |  math    |  ins         |  del
+		  )
+		}x;
+
+	my $tag_attrs = qr{
+						(?:				# Match one attr name/value pair
+							\s+				# There needs to be at least some whitespace
+											# before each attribute name.
+							[\w.:_-]+		# Attribute name
+							\s*=\s*
+							(["'])			# Attribute quoter
+							.+?				# Attribute value
+							\1				# Closing quoter
+						)*				# Zero or more
+					}x;
+
+	my $empty_tag = qr{< \w+ $tag_attrs \s* />}xms;
+	my $open_tag =  qr{< $block_tags $tag_attrs \s* >}xms;
+	my $close_tag = undef;	# let Text::Balanced handle this
+
+	use Text::Balanced qw(gen_extract_tagged);
+	my $extract_block = gen_extract_tagged($open_tag, $close_tag, undef, { ignore => [$empty_tag] });
+
+	my @chunks;
+	## TO-DO: the 0,3 on the next line ought to respect the
+	## tabwidth, or else, we should mandate 4-space tabwidth and
+	## be done with it:
+	while ($text =~ s{^(([ ]{0,3}<)?.*\n)}{}m) {
+		my $cur_line = $1;
+		if (defined $2) {
+			# current line could be start of code block
+
+			my ($tag, $remainder) = $extract_block->($cur_line . $text);
+			if ($tag) {
+				my $key = md5_hex($tag);
+				$g_html_blocks{$key} = $tag;
+				push @chunks, "\n\n" . $key . "\n\n";
+				$text = $remainder;
+			}
+			else {
+				# No tag match, so toss $cur_line into @chunks
+				push @chunks, $cur_line;
+			}
+		}
+		else {
+			# current line could NOT be start of code block
+			push @chunks, $cur_line;
+		}
+
+	}
+	push @chunks, $text; # Whatever is left.
+
+	$text = join '', @chunks;
+
+
+
+	# Special case just for 
. It was easier to make a special case than
+	# to make the other regex more complicated.	
+	$text =~ s{
+				(?:
+					(?<=\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
+				)
+			}{
+				my $key = md5_hex($1);
+				$g_html_blocks{$key} = $1;
+				"\n\n" . $key . "\n\n";
+			}egx;
+
+	# Special case for standalone HTML comments:
+	$text =~ s{
+				(?:
+					(?<=\n\n)		# Starting after a blank line
+					|				# or
+					\A\n?			# the beginning of the doc
+				)
+				(						# save in $1
+					[ ]{0,$less_than_tab}
+					(?s:
+						
+					)
+					[ \t]*
+					(?=\n{2,}|\Z)		# followed by a blank line or end of document
+				)
+			}{
+				my $key = md5_hex($1);
+				$g_html_blocks{$key} = $1;
+				"\n\n" . $key . "\n\n";
+			}egx;
+
+	# PHP and ASP-style processor instructions ( and <%…%>)
+	$text =~ s{
+				(?:
+					(?<=\n\n)		# Starting after a blank line
+					|				# or
+					\A\n?			# the beginning of the doc
+				)
+				(						# save in $1
+					[ ]{0,$less_than_tab}
+					(?s:
+						<([?%])			# $2
+						.*?
+						\2>
+					)
+					[ \t]*
+					(?=\n{2,}|\Z)		# followed by a blank line or end of document
+				)
+			}{
+				my $key = md5_hex($1);
+				$g_html_blocks{$key} = $1;
+				"\n\n" . $key . "\n\n";
+			}egx;
+
+
+	return $text;
+}
+
+
+sub _RunBlockGamut {
+#
+# These are all the transformations that form block-level
+# tags like paragraphs, headers, and list items.
+#
+	my $text = shift;
+
+	$text = _DoHeaders($text);
+
+	# Do Horizontal Rules:
+	$text =~ s{^[ ]{0,2}([ ]?\*[ ]?){3,}[ \t]*$}{\n tags around block-level tags.
+	$text = _HashHTMLBlocks($text);
+	$text = _FormParagraphs($text);
+
+	return $text;
+}
+
+
+sub _RunSpanGamut {
+#
+# These are all the transformations that occur *within* block-level
+# tags like paragraphs, headers, and list items.
+#
+	my $text = shift;
+
+	$text = _DoCodeSpans($text);
+	$text = _EscapeSpecialCharsWithinTagAttributes($text);
+	$text = _EncodeBackslashEscapes($text);
+
+	# Process anchor and image tags. Images must come first,
+	# because ![foo][f] looks like an anchor.
+	$text = _DoImages($text);
+	$text = _DoAnchors($text);
+
+	# Make links out of things like ``
+	# Must come after _DoAnchors(), because you can use < and >
+	# delimiters in inline links like [this]().
+	$text = _DoAutoLinks($text);
+	$text = _EncodeAmpsAndAngles($text);
+	$text = _DoItalicsAndBold($text);
+
+	# Do hard breaks:
+	$text =~ s/ {2,}\n/  -- encode [\ ` * _] so they
+# don't conflict with their use in Markdown for code, 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.
+#
+	my $text = shift;
+	my $tokens ||= _TokenizeHTML($text);
+	$text = '';   # rebuild $text from the tokens
+
+	foreach my $cur_token (@$tokens) {
+		if ($cur_token->[0] eq "tag") {
+			$cur_token->[1] =~  s! \\ !$g_escape_table{'\\'}!gx;
+			$cur_token->[1] =~  s{ (?<=.)(?=.)  }{$g_escape_table{'`'}}gx;
+			$cur_token->[1] =~  s! \* !$g_escape_table{'*'}!gx;
+			$cur_token->[1] =~  s! _  !$g_escape_table{'_'}!gx;
+		}
+		$text .= $cur_token->[1];
+	}
+	return $text;
+}
+
+
+sub _DoAnchors {
+#
+# Turn Markdown link shortcuts into XHTML  tags.
+#
+	my $text = shift;
+
+	#
+	# First, handle reference-style links: [link text] [id]
+	#
+	$text =~ s{
+		(					# wrap whole match in $1
+		  \[
+		    ($g_nested_brackets)	# link text = $2
+		  \]
+
+		  [ ]?				# one optional space
+		  (?:\n[ ]*)?		# one optional newline followed by spaces
+
+		  \[
+		    (.*?)		# id = $3
+		  \]
+		)
+	}{
+		my $result;
+		my $whole_match = $1;
+		my $link_text   = $2;
+		my $link_id     = lc $3;
+
+		if ($link_id eq "") {
+			$link_id = lc $link_text;     # for shortcut links like [this][].
+		}
+
+		if (defined $g_urls{$link_id}) {
+			my $url = $g_urls{$link_id};
+			$url =~ s! \* !$g_escape_table{'*'}!gx;		# We've got to encode these to avoid
+			$url =~ s!  _ !$g_escape_table{'_'}!gx;		# conflicting with italics/bold.
+			$result = "?	# href = $3
+		  	[ \t]*
+			(			# $4
+			  (['"])	# quote char = $5
+			  (.*?)		# Title = $6
+			  \5		# matching quote
+  		  	  [ \t]*	# ignore any spaces/tabs between closing quote and )
+			)?			# title is optional
+		  \)
+		)
+	}{
+		my $result;
+		my $whole_match = $1;
+		my $link_text   = $2;
+		my $url	  		= $3;
+		my $title		= $6;
+
+		$url =~ s! \* !$g_escape_table{'*'}!gx;		# We've got to encode these to avoid
+		$url =~ s!  _ !$g_escape_table{'_'}!gx;		# conflicting with italics/bold.
+		$result = " tags.
+#
+	my $text = shift;
+
+	#
+	# First, handle reference-style labeled images: ![alt text][id]
+	#
+	$text =~ s{
+		(				# wrap whole match in $1
+		  !\[
+		    (.*?)		# alt text = $2
+		  \]
+
+		  [ ]?				# one optional space
+		  (?:\n[ ]*)?		# one optional newline followed by spaces
+
+		  \[
+		    (.*?)		# id = $3
+		  \]
+
+		)
+	}{
+		my $result;
+		my $whole_match = $1;
+		my $alt_text    = $2;
+		my $link_id     = lc $3;
+
+		if ($link_id eq "") {
+			$link_id = lc $alt_text;     # for shortcut links like ![this][].
+		}
+
+		$alt_text =~ s/"/"/g;
+		if (defined $g_urls{$link_id}) {
+			my $url = $g_urls{$link_id};
+			$url =~ s! \* !$g_escape_table{'*'}!gx;		# We've got to encode these to avoid
+			$url =~ s!  _ !$g_escape_table{'_'}!gx;		# conflicting with italics/bold.
+			$result = "?	# src url = $3
+		  	[ \t]*
+			(			# $4
+			  (['"])	# quote char = $5
+			  (.*?)		# title = $6
+			  \5		# matching quote
+			  [ \t]*
+			)?			# title is optional
+		  \)
+		)
+	}{
+		my $result;
+		my $whole_match = $1;
+		my $alt_text    = $2;
+		my $url	  		= $3;
+		my $title		= '';
+		if (defined($6)) {
+			$title		= $6;
+		}
+
+		$alt_text =~ s/"/"/g;
+		$title    =~ s/"/"/g;
+		$url =~ s! \* !$g_escape_table{'*'}!gx;		# We've got to encode these to avoid
+		$url =~ s!  _ !$g_escape_table{'_'}!gx;		# conflicting with italics/bold.
+		$result = ""  .  _RunSpanGamut($1)  .  "\n\n";
+	}egmx;
+
+	$text =~ s{ ^(.+)[ \t]*\n-+[ \t]*\n+ }{
+		""  .  _RunSpanGamut($1)  .  "\n\n";
+	}egmx;
+
+
+	# atx-style headers:
+	#	# Header 1
+	#	## Header 2
+	#	## Header 2 with closing hashes ##
+	#	...
+	#	###### Header 6
+	#
+	$text =~ s{
+			^(\#{1,6})	# $1 = string of #'s
+			[ \t]*
+			(.+?)		# $2 = Header text
+			[ \t]*
+			\#*			# optional closing #'s (not counted)
+			\n+
+		}{
+			my $h_level = length($1);
+			""  .  _RunSpanGamut($2)  .  "\n\n";
+		}egmx;
+
+	return $text;
+}
+
+
+sub _DoLists {
+#
+# Form HTML ordered (numbered) and unordered (bulleted) lists.
+#
+	my $text = shift;
+	my $less_than_tab = $g_tab_width - 1;
+
+	# Re-usable patterns to match list item bullets and number markers:
+	my $marker_ul  = qr/[*+-]/;
+	my $marker_ol  = qr/\d+[.]/;
+	my $marker_any = qr/(?:$marker_ul|$marker_ol)/;
+
+	# Re-usable pattern to match any entirel ul or ol list:
+	my $whole_list = qr{
+		(								# $1 = whole list
+		  (								# $2
+			[ ]{0,$less_than_tab}
+			(${marker_any})				# $3 = first list item marker
+			[ \t]+
+		  )
+		  (?s:.+?)
+		  (								# $4
+			  \z
+			|
+			  \n{2,}
+			  (?=\S)
+			  (?!						# Negative lookahead for another list item marker
+				[ \t]*
+				${marker_any}[ \t]+
+			  )
+		  )
+		)
+	}mx;
+
+	# We use a different prefix before nested lists than top-level lists.
+	# See extended comment in _ProcessListItems().
+	#
+	# Note: There's a bit of duplication here. My original implementation
+	# created a scalar regex pattern as the conditional result of the test on
+	# $g_list_level, and then only ran the $text =~ s{...}{...}egmx
+	# substitution once, using the scalar as the pattern. This worked,
+	# everywhere except when running under MT on my hosting account at Pair
+	# Networks. There, this caused all rebuilds to be killed by the reaper (or
+	# perhaps they crashed, but that seems incredibly unlikely given that the
+	# same script on the same server ran fine *except* under MT. I've spent
+	# more time trying to figure out why this is happening than I'd like to
+	# admit. My only guess, backed up by the fact that this workaround works,
+	# is that Perl optimizes the substition when it can figure out that the
+	# pattern will never change, and when this optimization isn't on, we run
+	# afoul of the reaper. Thus, the slightly redundant code that uses two
+	# static s/// patterns rather than one conditional pattern.
+
+	if ($g_list_level) {
+		$text =~ s{
+				^
+				$whole_list
+			}{
+				my $list = $1;
+				my $list_type = ($3 =~ m/$marker_ul/) ? "ul" : "ol";
+
+				# Turn double returns into triple returns, so that we can make a
+				# paragraph for the last item in a list, if necessary:
+				$list =~ s/\n{2,}/\n\n\n/g;
+				my $result = _ProcessListItems($list, $marker_any);
+
+				# Trim any trailing whitespace, to put the closing ``
+				# 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.
+				$result =~ s{\s+$}{};
+				$result = "<$list_type>" . $result . "\n";
+				$result;
+			}egmx;
+	}
+	else {
+		$text =~ s{
+				(?:(?<=\n\n)|\A\n?)
+				$whole_list
+			}{
+				my $list = $1;
+				my $list_type = ($3 =~ m/$marker_ul/) ? "ul" : "ol";
+				# Turn double returns into triple returns, so that we can make a
+				# paragraph for the last item in a list, if necessary:
+				$list =~ s/\n{2,}/\n\n\n/g;
+				my $result = _ProcessListItems($list, $marker_any);
+				$result = "<$list_type>\n" . $result . "\n";
+				$result;
+			}egmx;
+	}
+
+
+	return $text;
+}
+
+
+sub _ProcessListItems {
+#
+#	Process the contents of a single ordered or unordered list, splitting it
+#	into individual list items.
+#
+
+	my $list_str = shift;
+	my $marker_any = shift;
+
+
+	# The $g_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.".
+
+	$g_list_level++;
+
+	# trim trailing blank lines:
+	$list_str =~ s/\n{2,}\z/\n/;
+
+
+	$list_str =~ s{
+		(\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]+))
+	}{
+		my $item = $4;
+		my $leading_line = $1;
+		my $leading_space = $2;
+
+		if ($leading_line or ($item =~ m/\n{2,}/)) {
+			$item = _RunBlockGamut(_Outdent($item));
+		}
+		else {
+			# Recursion for sub-lists:
+			$item = _DoLists(_Outdent($item));
+			chomp $item;
+			$item = _RunSpanGamut($item);
+		}
+
+		"" . $item . "\n";
+	}egmx;
+
+	$g_list_level--;
+	return $list_str;
+}
+
+
+
+sub _DoCodeBlocks {
+#
+#	Process Markdown `` blocks.
+#	
+
+	my $text = shift;
+
+	$text =~ s{
+			(?:\n\n|\A)
+			(	            # $1 = the code block -- one or more lines, starting with a space/tab
+			  (?:
+			    (?:[ ]{$g_tab_width} | \t)  # Lines must start with a tab or a tab-width of spaces
+			    .*\n+
+			  )+
+			)
+			((?=^[ ]{0,$g_tab_width}\S)|\Z)	# Lookahead for non-space at line-start, or end of doc
+		}{
+			my $codeblock = $1;
+			my $result; # return value
+
+			$codeblock = _EncodeCode(_Outdent($codeblock));
+			$codeblock = _Detab($codeblock);
+			$codeblock =~ s/\A\n+//; # trim leading newlines
+			$codeblock =~ s/\n+\z//; # trim trailing newlines
+
+			$result = "\n\n" . $codeblock . "\n\n\n";
+
+			$result;
+		}egmx;
+
+	return $text;
+}
+
+
+sub _DoCodeSpans {
+#
+# 	*	Backtick quotes are used for  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:
+#     
+#         Just type foo `bar` baz at the prompt.
+#     
+#		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 `bar` ...
+#
+
+	my $text = shift;
+
+	$text =~ s@
+			(?$c";
+		@egsx;
+
+	return $text;
+}
+
+
+sub _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.
+#
+    local $_ = shift;
+
+	# Encode all ampersands; HTML entities are not
+	# entities within a Markdown code span.
+	s/&/&/g;
+
+	# Encode $'s, but only if we're running under Blosxom.
+	# (Blosxom interpolates Perl variables in article bodies.)
+	{
+		no warnings 'once';
+    	if (defined($blosxom::version)) {
+    		s/\$/$/g;	
+    	}
+    }
+
+
+	# Do the angle bracket song and dance:
+	s! <  !<!gx;
+	s! >  !>!gx;
+
+	# Now, escape characters that are magic in Markdown:
+	s! \* !$g_escape_table{'*'}!gx;
+	s! _  !$g_escape_table{'_'}!gx;
+	s! {  !$g_escape_table{'{'}!gx;
+	s! }  !$g_escape_table{'}'}!gx;
+	s! \[ !$g_escape_table{'['}!gx;
+	s! \] !$g_escape_table{']'}!gx;
+	s! \\ !$g_escape_table{'\\'}!gx;
+
+	return $_;
+}
+
+
+sub _DoItalicsAndBold {
+	my $text = shift;
+
+	#  must go first:
+	$text =~ s{ (\*\*|__) (?=\S) (.+?[*_]*) (?<=\S) \1 }
+		{$2}gsx;
+
+	$text =~ s{ (\*|_) (?=\S) (.+?) (?<=\S) \1 }
+		{$2}gsx;
+
+	return $text;
+}
+
+
+sub _DoBlockQuotes {
+	my $text = shift;
+
+	$text =~ s{
+		  (								# 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
+			)+
+		  )
+		}{
+			my $bq = $1;
+			$bq =~ s/^[ \t]*>[ \t]?//gm;	# trim one level of quoting
+			$bq =~ s/^[ \t]+$//mg;			# trim whitespace-only lines
+			$bq = _RunBlockGamut($bq);		# recurse
+
+			$bq =~ s/^/  /g;
+			# These leading spaces screw with  content, so we need to fix that:
+			$bq =~ s{
+					(\s*.+?)
+				}{
+					my $pre = $1;
+					$pre =~ s/^  //mg;
+					$pre;
+				}egsx;
+
+			"\n$bq\n\n\n";
+		}egmx;
+
+
+	return $text;
+}
+
+
+sub _FormParagraphs {
+#
+#	Params:
+#		$text - string to process with html  tags
+#
+	my $text = shift;
+
+	# Strip leading and trailing lines:
+	$text =~ s/\A\n+//;
+	$text =~ s/\n+\z//;
+
+	my @grafs = split(/\n{2,}/, $text);
+
+	#
+	# Wrap 
 tags.
+	#
+	foreach (@grafs) {
+		unless (defined( $g_html_blocks{$_} )) {
+			$_ = _RunSpanGamut($_);
+			s/^([ \t]*)/
/;
+			$_ .= "";
+		}
+	}
+
+	#
+	# Unhashify HTML blocks
+	#
+# 	foreach my $graf (@grafs) {
+# 		my $block = $g_html_blocks{$graf};
+# 		if (defined $block) {
+# 			$graf = $block;
+# 		}
+# 	}
+
+	foreach my $graf (@grafs) {
+		# Modify elements of @grafs in-place...
+		my $block = $g_html_blocks{$graf};
+		if (defined $block) {
+			$graf = $block;
+			if ($block =~ m{
+							\A
+							(							# $1 =  tag
+							  ]*
+							  \b
+							  markdown\s*=\s*  (['"])	#	$2 = attr quote char
+							  1
+							  \2
+							  [^>]*
+							  >
+							)
+							(							# $3 = contents
+							.*
+							)
+							()					# $4 = closing tag
+							\z
+
+							}xms
+				) {
+				my ($div_open, $div_content, $div_close) = ($1, $3, $4);
+
+				# We can't call Markdown(), because that resets the hash;
+				# that initialization code should be pulled into its own sub, though.
+				$div_content = _HashHTMLBlocks($div_content);
+				$div_content = _StripLinkDefinitions($div_content);
+				$div_content = _RunBlockGamut($div_content);
+				$div_content = _UnescapeSpecialChars($div_content);
+
+				$div_open =~ s{\smarkdown\s*=\s*(['"]).+?\1}{}ms;
+
+				$graf = $div_open . "\n" . $div_content . "\n" . $div_close;
+			}
+		}
+	}
+
+
+	return join "\n\n", @grafs;
+}
+
+
+sub _EncodeAmpsAndAngles {
+# Smart processing for ampersands and angle brackets that need to be encoded.
+
+	my $text = shift;
+
+	# Ampersand-encoding based entirely on Nat Irons's Amputator MT plugin:
+	#   http://bumppo.net/projects/amputator/
+ 	$text =~ s/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/&/g;
+
+	# Encode naked <'s
+ 	$text =~ s{<(?![a-z/?\$!])}{<}gi;
+
+	return $text;
+}
+
+
+sub _EncodeBackslashEscapes {
+#
+#   Parameter:  String.
+#   Returns:    The string, with after processing the following backslash
+#               escape sequences.
+#
+    local $_ = shift;
+
+    s! \\\\  !$g_escape_table{'\\'}!gx;		# Must process escaped backslashes first.
+    s! \\`   !$g_escape_table{'`'}!gx;
+    s! \\\*  !$g_escape_table{'*'}!gx;
+    s! \\_   !$g_escape_table{'_'}!gx;
+    s! \\\{  !$g_escape_table{'{'}!gx;
+    s! \\\}  !$g_escape_table{'}'}!gx;
+    s! \\\[  !$g_escape_table{'['}!gx;
+    s! \\\]  !$g_escape_table{']'}!gx;
+    s! \\\(  !$g_escape_table{'('}!gx;
+    s! \\\)  !$g_escape_table{')'}!gx;
+    s! \\>   !$g_escape_table{'>'}!gx;
+    s! \\\#  !$g_escape_table{'#'}!gx;
+    s! \\\+  !$g_escape_table{'+'}!gx;
+    s! \\\-  !$g_escape_table{'-'}!gx;
+    s! \\\.  !$g_escape_table{'.'}!gx;
+    s{ \\!  }{$g_escape_table{'!'}}gx;
+
+    return $_;
+}
+
+
+sub _DoAutoLinks {
+	my $text = shift;
+
+	$text =~ s{<((https?|ftp|dict):[^'">\s]+)>}{$1}gi;
+
+	# Email addresses: 
+	$text =~ s{
+		<
+        (?:mailto:)?
+		(
+			[-.\w]+
+			\@
+			[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+
+		)
+		>
+	}{
+		_EncodeEmailAddress( _UnescapeSpecialChars($1) );
+	}egix;
+
+	return $text;
+}
+
+
+sub _EncodeEmailAddress {
+#
+#	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.:
+#
+#	  foo
+#       @example.com
+#
+#	Based on a filter by Matthew Wickline, posted to the BBEdit-Talk
+#	mailing list: 
+#
+
+	my $addr = shift;
+
+	srand;
+	my @encode = (
+		sub { '&#' .                 ord(shift)   . ';' },
+		sub { '&#x' . sprintf( "%X", ord(shift) ) . ';' },
+		sub {                            shift          },
+	);
+
+	$addr = "mailto:" . $addr;
+
+	$addr =~ s{(.)}{
+		my $char = $1;
+		if ( $char eq '@' ) {
+			# this *must* be encoded. I insist.
+			$char = $encode[int rand 1]->($char);
+		} elsif ( $char ne ':' ) {
+			# leave ':' alone (to spot mailto: later)
+			my $r = rand;
+			# roughly 10% raw, 45% hex, 45% dec
+			$char = (
+				$r > .9   ?  $encode[2]->($char)  :
+				$r < .45  ?  $encode[1]->($char)  :
+							 $encode[0]->($char)
+			);
+		}
+		$char;
+	}gex;
+
+	$addr = qq{$addr};
+	$addr =~ s{">.+?:}{">}; # strip the mailto: from the visible part
+
+	return $addr;
+}
+
+
+sub _UnescapeSpecialChars {
+#
+# Swap back in all the special characters we've hidden.
+#
+	my $text = shift;
+
+	while( my($char, $hash) = each(%g_escape_table) ) {
+		$text =~ s/$hash/$char/g;
+	}
+    return $text;
+}
+
+
+sub _TokenizeHTML {
+#
+#   Parameter:  String containing HTML markup.
+#   Returns:    Reference to an array of the tokens comprising the input
+#               string. Each token is either a tag (possibly with nested,
+#               tags contained therein, such as , 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.
+#
+#
+#   Derived from the _tokenize() subroutine from Brad Choate's MTRegex plugin.
+#       
+#
+
+    my $str = shift;
+    my $pos = 0;
+    my $len = length $str;
+    my @tokens;
+
+    my $depth = 6;
+    my $nested_tags = join('|', ('(?:<[a-z/!$](?:[^<>]') x $depth) . (')*>)' x  $depth);
+    my $match = qr/(?s:  ) |  # comment
+                   (?s: <\? .*? \?> ) |              # processing instruction
+                   $nested_tags/ix;                   # nested tags
+
+    while ($str =~ m/($match)/g) {
+        my $whole_tag = $1;
+        my $sec_start = pos $str;
+        my $tag_start = $sec_start - length $whole_tag;
+        if ($pos < $tag_start) {
+            push @tokens, ['text', substr($str, $pos, $tag_start - $pos)];
+        }
+        push @tokens, ['tag', $whole_tag];
+        $pos = pos $str;
+    }
+    push @tokens, ['text', substr($str, $pos, $len - $pos)] if $pos < $len;
+
+    return \@tokens;
+}
+
+
+sub _Outdent {
+#
+# Remove one level of line-leading tabs or spaces
+#
+	my $text = shift;
+
+	$text =~ s/^(\t|[ ]{1,$g_tab_width})//gm;
+	return $text;
+}
+
+
+sub _Detab {
+#
+# Cribbed from a post by Bart Lateur:
+# 
+#
+	my $text = shift;
+
+	$text =~ s{(.*?)\t}{$1.(' ' x ($g_tab_width - length($1) % $g_tab_width))}ge;
+	return $text;
+}
+
+
+1;
+
+__END__
+
+
+=pod
+
+=head1 NAME
+
+B
+
+
+=head1 SYNOPSIS
+
+B [ B<--html4tags> ] [ B<--version> ] [ B<-shortversion> ]
+    [ I ... ]
+
+
+=head1 DESCRIPTION
+
+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  and 
 as well).
+
+For more information about Markdown's syntax, see:
+
+    http://daringfireball.net/projects/markdown/
+
+
+=head1 OPTIONS
+
+Use "--" to end switch parsing. For example, to open a file named "-z", use:
+
+	Markdown.pl -- -z
+
+=over 4
+
+
+=item B<--html4tags>
+
+Use HTML 4 style for empty element tags, e.g.:
+
+    

+
+instead of Markdown's default XHTML style tags, e.g.:
+
+    

+
+
+=item B<-v>, B<--version>
+
+Display Markdown's version number and copyright information.
+
+
+=item B<-s>, B<--shortversion>
+
+Display the short-form version number.
+
+
+=back
+
+
+
+=head1 BUGS
+
+To file bug reports or feature requests (other than topics listed in the
+Caveats section above) please send email to:
+
+    support@daringfireball.net
+
+Please include with your report: (1) the example input; (2) the output
+you expected; (3) the output Markdown actually produced.
+
+
+=head1 VERSION HISTORY
+
+See the readme file for detailed release notes for this version.
+
+1.0.2b7
+
+	+	Changed shebang line from "/usr/bin/perl" to "/usr/bin/env perl"
+	
+	+	Now only trim trailing newlines from code blocks, instead of trimming
+		all trailing whitespace characters.
+
+
+1.0.2b6 - Mon 03 Apr 2006
+
+	+	Fixed bad performance bug in new `Text::Balanced`-based block-level parser.
+
+
+1.0.2b5 - Thu 08 Dec 2005
+
+	+	Fixed bug where this:
+	
+			[text](http://m.com "title" )
+			
+		wasn't working as expected, because the parser wasn't allowing for spaces
+		before the closing paren.
+
+
+1.0.2b4 - Thu 08 Sep 2005
+
+	+	Filthy hack to support markdown='1' in div tags, because I need it
+		to write today's fireball.
+	
+	+	First crack at a new, smarter, block-level HTML parser.
+
+1.0.2b3 - Thu 28 Apr 2005
+
+	+	_DoAutoLinks() now supports the 'dict://' URL scheme.
+
+	+	PHP- and ASP-style processor instructions are now protected as
+		raw HTML blocks.
+
+			
+			<% ... %>
+
+	+	Workarounds for regressions introduced with fix for "backticks within
+		tags" bug in 1.0.2b1. The fix is to allow `...` to be turned into
+		... within an HTML tag attribute, and then to turn
+		these spurious `` tags back into literal backtick characters
+		in _EscapeSpecialCharsWithinTagAttributes().
+
+		The regression was caused because in the fix, we moved
+		_EscapeSpecialCharsWithinTagAttributes() ahead of _DoCodeSpans()
+		in _RunSpanGamut(), but that's no good. We need to process code
+		spans first, otherwise we can get tripped up by something like this:
+
+			``
+
+
+1.0.2b2 - 20 Mar 2005
+
+	+	Fix for nested sub-lists in list-paragraph mode. Previously we got
+		a spurious extra level of `` tags for something like this:
+
+			*	this
+
+				*	sub
+
+				that
+
+	+	Experimental support for [this] as a synonym for [this][].
+		(Note to self: No test yet for this.)
+		Be sure to test, e.g.: [permutations of this sort of [thing][].]
+
+
+1.0.2b1 - 28  Feb 2005
+
+	+	Fix for backticks within HTML tag: like this
+
+	+	Fix for escaped backticks still triggering code spans:
+
+			There are two raw backticks here: \` and here: \`, not a code span
+
+1.0.1 - 14 Dec 2004
+
+1.0 - 28 Aug 2004
+
+
+=head1 AUTHOR
+
+    John Gruber
+    http://daringfireball.net
+
+    PHP port and other contributions by Michel Fortin
+    http://michelf.com
+
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright (c) 2003-2005 John Gruber   
+   
+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.
+
+=cut
diff --git a/perlMarkdown/readme.txt b/perlMarkdown/readme.txt
new file mode 100644
index 0000000..9e73e56
--- /dev/null
+++ b/perlMarkdown/readme.txt
@@ -0,0 +1,13 @@
+Reference Implementation
+------------------------
+
+This directory contains John Gruber's original Perl implementation of Markdown.  Smart diff programs like Araxis Merge will be able to match up this file with markdown.pl.
+
+A little tweaking helps.  In markdown.pl:
+
+  - replace `#` with `//`
+  - replace `$text` with `text`
+
+Be sure to ignore whitespace and line endings.
+
+Note: This release of Showdown is based on `markdown1.0.2b7.pl`, but uses the HTML parser from `markdown1.0.2b2.pl`.
diff --git a/readme.txt b/readme.txt
new file mode 100644
index 0000000..4b0d961
--- /dev/null
+++ b/readme.txt
@@ -0,0 +1,156 @@
+
+Showdown -- A JavaScript port of Markdown
+=========================================
+
+Showdown Copyright (c) 2007 John Fraser.
+
+
+Original Markdown Copyright (c) 2004-2005 John Gruber
+
+
+Redistributable under a BSD-style open source license.
+See license.txt for more information.
+
+
+What's it for?
+--------------
+
+Developers can use Showdown to:
+
+ * Add in-browser preview to existing Markdown apps
+
+    Showdown's output is (almost always) identical to
+    markdown.pl's, so the server can reproduce exactly
+    the output that the user saw.  (See below for
+    exceptions.)
+
+ * Add Markdown input to programs that don't support it
+
+    Any app that accepts HTML input can now be made to speak
+    Markdown by modifying the input pages's HTML.  If your
+    application lets users edit documents again later,
+    then they won't have access to the original Markdown
+    text.  But this should be good enough for many
+    uses -- and you can do it with just a two-line
+    `onsubmit` function!
+
+ * Add Markdown input to closed-source web apps
+
+    You can write bookmarklets or userscripts to extend
+    any standard textarea on the web so that it accepts
+    Markdown instead of HTML.  With a little more hacking,
+    the same can probably be done with  many rich edit
+    controls.
+
+ * Build new web apps from scratch
+
+    A Showdown front-end can send back text in Markdown,
+    HTML or both, so you can trade bandwidth for server
+    load to reduce your cost of operation.  If your app
+    requires JavaScript, you won't need to do any
+    Markdown processing on the server at all.  (For most
+    uses, you'll still need to sanitize the HTML before
+    showing it to other users -- but you'd need to do
+    that anyway if you're allowing raw HTML in your
+    Markdown.)
+
+
+Browser Compatibility
+---------------------
+
+Showdown has been tested successfully with:
+
+ - Firefox 1.5 and 2.0
+ - Internet Explorer 6 and 7
+ - Safari 2.0.4
+ - Opera 8.54 and 9.10
+ - Netscape 8.1.2
+ - Konqueror 3.5.4
+
+In theory, Showdown will work in any browser that supports ECMA 262 3rd Edition (JavaScript 1.5).  The converter itself might even work in things that aren't web browsers, like Acrobat.  No promises.
+
+
+Known Differences in Output
+---------------------------
+
+In most cases, Showdown's output is identical to that of Perl Markdown v1.0.2b7.  What follows is a list of all known deviations.  Please email me if you find more.
+
+
+ *  This release uses the HTML parser from Markdown 1.0.2b2,
+    which means it fails `Inline HTML (Advanced).text` from
+    the Markdown test suite:
+
+        

+        
+        unindented == broken
+        
+        
+
+
+ *  Showdown doesn't support the markdown="1" attribute:
+
+        
+             Markdown does *not* work in here.
+        
+
+    This is half laziness on my part and half stubbornness.
+    Markdown is smart enough to process the contents of span-
+    level tags without screwing things up; shouldn't it be
+    able to do the same inside block elements?  Let's find a
+    way to make markdown="1" the default.
+
+
+ *  You can only nest square brackets in link titles to a
+    depth of two levels:
+
+        [[fine]](http://www.attacklab.net/)
+        [[[broken]]](http://www.attacklab.net/)
+
+    If you need more, you can escape them with backslashes.
+
+
+ *  When sublists have paragraphs, Showdown produces equivalent
+    HTML with a slightly different arrangement of newlines:
+
+        + item
+
+             - subitem
+
+               The HTML has a superfluous newline before this
+               paragraph.
+
+             - subitem
+
+               The HTML here is unchanged.
+
+             - subitem
+
+               The HTML is missing a newline after this
+               list subitem.
+
+
+
+ *  Markdown.pl creates empty title attributes for
+    inline-style images:
+
+        Here's an empty title on an inline-style
+        ![image](http://w3.org/Icons/valid-xhtml10).
+
+    I tried to replicate this to clean up my diffs during
+    testing, but I went too far: now Showdown also makes
+    empty titles for reference-style images:
+
+        Showdown  makes an empty title for
+        reference-style ![images][] too.
+
+        [images]: http://w3.org/Icons/valid-xhtml10
+
+
+ *  With crazy input, Markdown will mistakenly put
+    `` or `` tags in URLs:
+
+        
+           improbable URL
+        
+
+    Showdown won't.  But still, don't do that.
diff --git a/src/showdown.js b/src/showdown.js
new file mode 100644
index 0000000..a960309
--- /dev/null
+++ b/src/showdown.js
@@ -0,0 +1,1296 @@
+//
+// showdown.js -- A javascript port of Markdown.
+//
+// Copyright (c) 2007 John Fraser.
+//
+// Original Markdown Copyright (c) 2004-2005 John Gruber
+//   
+//
+// Redistributable under a BSD-style open source license.
+// See license.txt for more information.
+//
+// The full source distribution is at:
+//
+//				A A L
+//				T C A
+//				T K B
+//
+//   
+//
+
+//
+// Wherever possible, Showdown is a straight, line-by-line port
+// of the Perl version of Markdown.
+//
+// This is not a normal parser design; it's basically just a
+// series of string substitutions.  It's hard to read and
+// maintain this way,  but keeping Showdown close to the original
+// design makes it easier to port new features.
+//
+// More importantly, Showdown behaves like markdown.pl in most
+// edge cases.  So web applications can do client-side preview
+// in Javascript, and then build identical HTML on the server.
+//
+// This port needs the new RegExp functionality of ECMA 262,
+// 3rd Edition (i.e. Javascript 1.5).  Most modern web browsers
+// should do fine.  Even with the new regular expression features,
+// We do a lot of work to emulate Perl's regex functionality.
+// The tricky changes in this file mostly have the "attacklab:"
+// label.  Major or self-explanatory changes don't.
+//
+// Smart diff tools like Araxis Merge will be able to match up
+// this file with markdown.pl in a useful way.  A little tweaking
+// helps: in a copy of markdown.pl, replace "#" with "//" and
+// replace "$text" with "text".  Be sure to ignore whitespace
+// and line endings.
+//
+
+
+//
+// Showdown usage:
+//
+//   var text = "Markdown *rocks*.";
+//
+//   var converter = new Showdown.converter();
+//   var html = converter.makeHtml(text);
+//
+//   alert(html);
+//
+// Note: move the sample code to the bottom of this
+// file before uncommenting it.
+//
+
+
+//
+// Showdown namespace
+//
+var Showdown = {};
+
+//
+// converter
+//
+// Wraps all "globals" so that the only thing
+// exposed is makeHtml().
+//
+Showdown.converter = function() {
+
+//
+// Globals:
+//
+
+// Global hashes, used by various utility routines
+var g_urls;
+var g_titles;
+var g_html_blocks;
+
+// Used to track when we're inside an ordered or unordered list
+// (see _ProcessListItems() for details):
+var g_list_level = 0;
+
+
+this.makeHtml = function(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 
+// and  tags get encoded.
+//
+
+	// Clear the global 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):
+	g_urls = new Array();
+	g_titles = new Array();
+	g_html_blocks = new Array();
+
+	// attacklab: Replace ~ with ~T
+	// This lets us use tilde as an escape char to avoid md5 hashes
+	// The choice of character is arbitray; anything that isn't
+    // magic in Markdown will work.
+	text = text.replace(/~/g,"~T");
+
+	// attacklab: Replace $ with ~D
+	// RegExp interprets $ as a special character
+	// when it's in a replacement string
+	text = text.replace(/\$/g,"~D");
+
+	// Standardize line endings
+	text = text.replace(/\r\n/g,"\n"); // DOS to Unix
+	text = text.replace(/\r/g,"\n"); // Mac to Unix
+
+	// Make sure text begins and ends with a couple of newlines:
+	text = "\n\n" + text + "\n\n";
+
+	// Convert all tabs to spaces.
+	text = _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 = text.replace(/^[ \t]+$/mg,"");
+
+	// Turn block-level HTML blocks into hash entries
+	text = _HashHTMLBlocks(text);
+
+	// Strip link definitions, store in hashes.
+	text = _StripLinkDefinitions(text);
+
+	text = _RunBlockGamut(text);
+
+	text = _UnescapeSpecialChars(text);
+
+	// attacklab: Restore dollar signs
+	text = text.replace(/~D/g,"$$");
+
+	// attacklab: Restore tildes
+	text = text.replace(/~T/g,"~");
+
+	return text;
+}
+
+
+var _StripLinkDefinitions = function(text) {
+//
+// Strips link definitions from text, stores the URLs and titles in
+// hash references.
+//
+
+	// Link defs are in the form: ^[id]: url "optional title"
+
+	/*
+		var text = text.replace(/
+				^[ ]{0,3}\[(.+)\]:  // id = $1  attacklab: g_tab_width - 1
+				  [ \t]*
+				  \n?				// maybe *one* newline
+				  [ \t]*
+				?			// url = $2
+				  [ \t]*
+				  \n?				// maybe one newline
+				  [ \t]*
+				(?:
+				  (\n*)				// any lines skipped = $3 attacklab: lookbehind removed
+				  ["(]
+				  (.+?)				// title = $4
+				  [")]
+				  [ \t]*
+				)?					// title is optional
+				(?:\n+|$)
+			  /gm,
+			  function(){...});
+	*/
+	var text = text.replace(/^[ ]{0,3}\[(.+)\]:[ \t]*\n?[ \t]*?[ \t]*\n?[ \t]*(?:(\n*)["(](.+?)[")][ \t]*)?(?:\n+|\Z)/gm,
+		function (wholeMatch,m1,m2,m3,m4) {
+			m1 = m1.toLowerCase();
+			g_urls[m1] = _EncodeAmpsAndAngles(m2);  // Link IDs are case-insensitive
+			if (m3) {
+				// Oops, found blank lines, so it's not a title.
+				// Put back the parenthetical statement we stole.
+				return m3+m4;
+			} else if (m4) {
+				g_titles[m1] = m4.replace(/"/g,""");
+			}
+			
+			// Completely remove the definition from the text
+			return "";
+		}
+	);
+
+	return text;
+}
+
+
+var _HashHTMLBlocks = function(text) {
+	// attacklab: Double up blank lines to reduce lookaround
+	text = text.replace(/\n/g,"\n\n");
+
+	// 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 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:
+	var block_tags_a = "p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|ins|del"
+	var 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.:
+	//   

+	//     
+	//     tags for inner block must be indented.
+	//     
+	//   
+	//
+	// 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 `` and stop at the first ``.
+
+	// attacklab: This regex can be expensive when it fails.
+	/*
+		var text = text.replace(/
+		(						// save in $1
+			^					// start of line  (with /m)
+			<($block_tags_a)	// start tag = $2
+			\b					// word break
+								// attacklab: hack around khtml/pcre bug...
+			[^\r]*?\n			// any number of lines, minimally matching
+							// the matching end tag
+			[ \t]*				// trailing spaces/tabs
+			(?=\n+)				// followed by a newline
+		)						// attacklab: there are sentinel newlines at end of document
+		/gm,function(){...}};
+	*/
+	text = text.replace(/^(<(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math|ins|del)\b[^\r]*?\n<\/\2>[ \t]*(?=\n+))/gm,hashElement);
+
+	//
+	// Now match more liberally, simply from `\n` to `\n`
+	//
+
+	/*
+		var text = text.replace(/
+		(						// save in $1
+			^					// start of line  (with /m)
+			<($block_tags_b)	// start tag = $2
+			\b					// word break
+								// attacklab: hack around khtml/pcre bug...
+			[^\r]*?				// any number of lines, minimally matching
+			.*				// the matching end tag
+			[ \t]*				// trailing spaces/tabs
+			(?=\n+)				// followed by a newline
+		)						// attacklab: there are sentinel newlines at end of document
+		/gm,function(){...}};
+	*/
+	text = text.replace(/^(<(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|script|noscript|form|fieldset|iframe|math)\b[^\r]*?.*<\/\2>[ \t]*(?=\n+)\n)/gm,hashElement);
+
+	// Special case just for . It was easier to make a special case than
+	// to make the other regex more complicated.  
+
+	/*
+		text = text.replace(/
+		(						// save in $1
+			\n\n				// Starting after a blank line
+			[ ]{0,3}
+			(<(hr)				// start tag = $2
+			\b					// word break
+			([^<>])*?			// 
+			\/?>)				// the matching end tag
+			[ \t]*
+			(?=\n{2,})			// followed by a blank line
+		)
+		/g,hashElement);
+	*/
+	text = text.replace(/(\n[ ]{0,3}(<(hr)\b([^<>])*?\/?>)[ \t]*(?=\n{2,}))/g,hashElement);
+
+	// Special case for standalone HTML comments:
+
+	/*
+		text = text.replace(/
+		(						// save in $1
+			\n\n				// Starting after a blank line
+			[ ]{0,3}			// attacklab: g_tab_width - 1
+			
+			[ \t]*
+			(?=\n{2,})			// followed by a blank line
+		)
+		/g,hashElement);
+	*/
+	text = text.replace(/(\n\n[ ]{0,3}[ \t]*(?=\n{2,}))/g,hashElement);
+
+	// PHP and ASP-style processor instructions ( and <%...%>)
+
+	/*
+		text = text.replace(/
+		(?:
+			\n\n				// Starting after a blank line
+		)
+		(						// save in $1
+			[ ]{0,3}			// attacklab: g_tab_width - 1
+			(?:
+				<([?%])			// $2
+				[^\r]*?
+				\2>
+			)
+			[ \t]*
+			(?=\n{2,})			// followed by a blank line
+		)
+		/g,hashElement);
+	*/
+	text = text.replace(/(?:\n\n)([ ]{0,3}(?:<([?%])[^\r]*?\2>)[ \t]*(?=\n{2,}))/g,hashElement);
+
+	// attacklab: Undo double lines (see comment at top of this function)
+	text = text.replace(/\n\n/g,"\n");
+	return text;
+}
+
+var hashElement = function(wholeMatch,m1) {
+	var blockText = m1;
+
+	// Undo double lines
+	blockText = blockText.replace(/\n\n/g,"\n");
+	blockText = blockText.replace(/^\n/,"");
+	
+	// strip trailing blank lines
+	blockText = blockText.replace(/\n+$/g,"");
+	
+	// Replace the element text with a marker ("~KxK" where x is its key)
+	blockText = "\n\n~K" + (g_html_blocks.push(blockText)-1) + "K\n\n";
+	
+	return blockText;
+};
+
+var _RunBlockGamut = function(text) {
+//
+// These are all the transformations that form block-level
+// tags like paragraphs, headers, and list items.
+//
+	text = _DoHeaders(text);
+
+	// Do Horizontal Rules:
+	var key = hashBlock("");
+	text = text.replace(/^[ ]{0,2}([ ]?\*[ ]?){3,}[ \t]*$/gm,key);
+	text = text.replace(/^[ ]{0,2}([ ]?\-[ ]?){3,}[ \t]*$/gm,key);
+	text = text.replace(/^[ ]{0,2}([ ]?\_[ ]?){3,}[ \t]*$/gm,key);
+
+	text = _DoLists(text);
+	text = _DoCodeBlocks(text);
+	text = _DoBlockQuotes(text);
+
+	// We already ran _HashHTMLBlocks() before, in Markdown(), but that
+	// was to escape raw HTML in the original Markdown source. This time,
+	// we're escaping the markup we've just created, so that we don't wrap
+	//  tags around block-level tags.
+	text = _HashHTMLBlocks(text);
+	text = _FormParagraphs(text);
+
+	return text;
+}
+
+
+var _RunSpanGamut = function(text) {
+//
+// These are all the transformations that occur *within* block-level
+// tags like paragraphs, headers, and list items.
+//
+
+	text = _DoCodeSpans(text);
+	text = _EscapeSpecialCharsWithinTagAttributes(text);
+	text = _EncodeBackslashEscapes(text);
+
+	// Process anchor and image tags. Images must come first,
+	// because ![foo][f] looks like an anchor.
+	text = _DoImages(text);
+	text = _DoAnchors(text);
+
+	// Make links out of things like ``
+	// Must come after _DoAnchors(), because you can use < and >
+	// delimiters in inline links like [this]().
+	text = _DoAutoLinks(text);
+	text = _EncodeAmpsAndAngles(text);
+	text = _DoItalicsAndBold(text);
+
+	// Do hard breaks:
+	text = text.replace(/  +\n/g," 
\n");
+
+	return text;
+}
+
+var _EscapeSpecialCharsWithinTagAttributes = function(text) {
+//
+// Within tags -- meaning between < and > -- encode [\ ` * _] so they
+// don't conflict with their use in Markdown for code, italics and strong.
+//
+
+	// Build a regex to find HTML tags and comments.  See Friedl's 
+	// "Mastering Regular Expressions", 2nd Ed., pp. 200-201.
+	var regex = /(<[a-z\/!$]("[^"]*"|'[^']*'|[^'">])*>|)/gi;
+
+	text = text.replace(regex, function(wholeMatch) {
+		var tag = wholeMatch.replace(/(.)<\/?code>(?=.)/g,"$1`");
+		tag = escapeCharacters(tag,"\\`*_");
+		return tag;
+	});
+
+	return text;
+}
+
+var _DoAnchors = function(text) {
+//
+// Turn Markdown link shortcuts into XHTML  tags.
+//
+	//
+	// First, handle reference-style links: [link text] [id]
+	//
+
+	/*
+		text = text.replace(/
+		(							// wrap whole match in $1
+			\[
+			(
+				(?:
+					\[[^\]]*\]		// allow brackets nested one level
+					|
+					[^\[]			// or anything else
+				)*
+			)
+			\]
+
+			[ ]?					// one optional space
+			(?:\n[ ]*)?				// one optional newline followed by spaces
+
+			\[
+			(.*?)					// id = $3
+			\]
+		)()()()()					// pad remaining backreferences
+		/g,_DoAnchors_callback);
+	*/
+	text = text.replace(/(\[((?:\[[^\]]*\]|[^\[\]])*)\][ ]?(?:\n[ ]*)?\[(.*?)\])()()()()/g,writeAnchorTag);
+
+	//
+	// Next, inline-style links: [link text](url "optional title")
+	//
+
+	/*
+		text = text.replace(/
+			(						// wrap whole match in $1
+				\[
+				(
+					(?:
+						\[[^\]]*\]	// allow brackets nested one level
+					|
+					[^\[\]]			// or anything else
+				)
+			)
+			\]
+			\(						// literal paren
+			[ \t]*
+			()						// no id, so leave $3 empty
+			?				// href = $4
+			[ \t]*
+			(						// $5
+				(['"])				// quote char = $6
+				(.*?)				// Title = $7
+				\6					// matching quote
+				[ \t]*				// ignore any spaces/tabs between closing quote and )
+			)?						// title is optional
+			\)
+		)
+		/g,writeAnchorTag);
+	*/
+	text = text.replace(/(\[((?:\[[^\]]*\]|[^\[\]])*)\]\([ \t]*()?[ \t]*((['"])(.*?)\6[ \t]*)?\))/g,writeAnchorTag);
+
+	//
+	// Last, handle reference-style shortcuts: [link text]
+	// These must come last in case you've also got [link test][1]
+	// or [link test](/foo)
+	//
+
+	/*
+		text = text.replace(/
+		(		 					// wrap whole match in $1
+			\[
+			([^\[\]]+)				// link text = $2; can't contain '[' or ']'
+			\]
+		)()()()()()					// pad rest of backreferences
+		/g, writeAnchorTag);
+	*/
+	text = text.replace(/(\[([^\[\]]+)\])()()()()()/g, writeAnchorTag);
+
+	return text;
+}
+
+var writeAnchorTag = function(wholeMatch,m1,m2,m3,m4,m5,m6,m7) {
+	if (m7 == undefined) m7 = "";
+	var whole_match = m1;
+	var link_text   = m2;
+	var link_id	 = m3.toLowerCase();
+	var url		= m4;
+	var title	= m7;
+	
+	if (url == "") {
+		if (link_id == "") {
+			// lower-case and turn embedded newlines into spaces
+			link_id = link_text.toLowerCase().replace(/ ?\n/g," ");
+		}
+		url = "#"+link_id;
+		
+		if (g_urls[link_id] != undefined) {
+			url = g_urls[link_id];
+			if (g_titles[link_id] != undefined) {
+				title = g_titles[link_id];
+			}
+		}
+		else {
+			if (whole_match.search(/\(\s*\)$/m)>-1) {
+				// Special case for explicit empty url
+				url = "";
+			} else {
+				return whole_match;
+			}
+		}
+	}	
+	
+	url = escapeCharacters(url,"*_");
+	var result = "";
+	
+	return result;
+}
+
+
+var _DoImages = function(text) {
+//
+// Turn Markdown image shortcuts into  tags.
+//
+
+	//
+	// First, handle reference-style labeled images: ![alt text][id]
+	//
+
+	/*
+		text = text.replace(/
+		(						// wrap whole match in $1
+			!\[
+			(.*?)				// alt text = $2
+			\]
+
+			[ ]?				// one optional space
+			(?:\n[ ]*)?			// one optional newline followed by spaces
+
+			\[
+			(.*?)				// id = $3
+			\]
+		)()()()()				// pad rest of backreferences
+		/g,writeImageTag);
+	*/
+	text = text.replace(/(!\[(.*?)\][ ]?(?:\n[ ]*)?\[(.*?)\])()()()()/g,writeImageTag);
+
+	//
+	// Next, handle inline images:  ![alt text](url "optional title")
+	// Don't forget: encode * and _
+
+	/*
+		text = text.replace(/
+		(						// wrap whole match in $1
+			!\[
+			(.*?)				// alt text = $2
+			\]
+			\s?					// One optional whitespace character
+			\(					// literal paren
+			[ \t]*
+			()					// no id, so leave $3 empty
+			?			// src url = $4
+			[ \t]*
+			(					// $5
+				(['"])			// quote char = $6
+				(.*?)			// title = $7
+				\6				// matching quote
+				[ \t]*
+			)?					// title is optional
+		\)
+		)
+		/g,writeImageTag);
+	*/
+	text = text.replace(/(!\[(.*?)\]\s?\([ \t]*()?[ \t]*((['"])(.*?)\6[ \t]*)?\))/g,writeImageTag);
+
+	return text;
+}
+
+var writeImageTag = function(wholeMatch,m1,m2,m3,m4,m5,m6,m7) {
+	var whole_match = m1;
+	var alt_text   = m2;
+	var link_id	 = m3.toLowerCase();
+	var url		= m4;
+	var title	= m7;
+
+	if (!title) title = "";
+	
+	if (url == "") {
+		if (link_id == "") {
+			// lower-case and turn embedded newlines into spaces
+			link_id = alt_text.toLowerCase().replace(/ ?\n/g," ");
+		}
+		url = "#"+link_id;
+		
+		if (g_urls[link_id] != undefined) {
+			url = g_urls[link_id];
+			if (g_titles[link_id] != undefined) {
+				title = g_titles[link_id];
+			}
+		}
+		else {
+			return whole_match;
+		}
+	}	
+	
+	alt_text = alt_text.replace(/"/g,""");
+	url = escapeCharacters(url,"*_");
+	var result = "" + _RunSpanGamut(m1) + "");});
+
+	text = text.replace(/^(.+)[ \t]*\n-+[ \t]*\n+/gm,
+		function(matchFound,m1){return hashBlock("
" + _RunSpanGamut(m1) + "
");});
+
+	// atx-style headers:
+	//  # Header 1
+	//  ## Header 2
+	//  ## Header 2 with closing hashes ##
+	//  ...
+	//  ###### Header 6
+	//
+
+	/*
+		text = text.replace(/
+			^(\#{1,6})				// $1 = string of #'s
+			[ \t]*
+			(.+?)					// $2 = Header text
+			[ \t]*
+			\#*						// optional closing #'s (not counted)
+			\n+
+		/gm, function() {...});
+	*/
+
+	text = text.replace(/^(\#{1,6})[ \t]*(.+?)[ \t]*\#*\n+/gm,
+		function(wholeMatch,m1,m2) {
+			var h_level = m1.length;
+			return hashBlock("" + _RunSpanGamut(m2) + "");
+		});
+
+	return text;
+}
+
+// This declaration keeps Dojo compressor from outputting garbage:
+var _ProcessListItems;
+
+var _DoLists = function(text) {
+//
+// Form HTML ordered (numbered) and unordered (bulleted) lists.
+//
+
+	// attacklab: add sentinel to hack around khtml/safari bug:
+	// http://bugs.webkit.org/show_bug.cgi?id=11231
+	text += "~0";
+
+	// Re-usable pattern to match any entirel ul or ol list:
+
+	/*
+		var whole_list = /
+		(									// $1 = whole list
+			(								// $2
+				[ ]{0,3}					// attacklab: g_tab_width - 1
+				([*+-]|\d+[.])				// $3 = first list item marker
+				[ \t]+
+			)
+			[^\r]+?
+			(								// $4
+				~0							// sentinel for workaround; should be $
+			|
+				\n{2,}
+				(?=\S)
+				(?!							// Negative lookahead for another list item marker
+					[ \t]*
+					(?:[*+-]|\d+[.])[ \t]+
+				)
+			)
+		)/g
+	*/
+	var whole_list = /^(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/gm;
+
+	if (g_list_level) {
+		text = text.replace(whole_list,function(wholeMatch,m1,m2) {
+			var list = m1;
+			var list_type = (m2.search(/[*+-]/g)>-1) ? "ul" : "ol";
+
+			// Turn double returns into triple returns, so that we can make a
+			// paragraph for the last item in a list, if necessary:
+			list = list.replace(/\n{2,}/g,"\n\n\n");;
+			var result = _ProcessListItems(list);
+	
+			// Trim any trailing whitespace, to put the closing ``
+			// 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 = result.replace(/\s+$/,"");
+			result = "<"+list_type+">" + result + "\n";
+			return result;
+		});
+	} else {
+		whole_list = /(\n\n|^\n?)(([ ]{0,3}([*+-]|\d+[.])[ \t]+)[^\r]+?(~0|\n{2,}(?=\S)(?![ \t]*(?:[*+-]|\d+[.])[ \t]+)))/g;
+		text = text.replace(whole_list,function(wholeMatch,m1,m2,m3) {
+			var runup = m1;
+			var list = m2;
+
+			var list_type = (m3.search(/[*+-]/g)>-1) ? "ul" : "ol";
+			// Turn double returns into triple returns, so that we can make a
+			// paragraph for the last item in a list, if necessary:
+			var list = list.replace(/\n{2,}/g,"\n\n\n");;
+			var result = _ProcessListItems(list);
+			result = runup + "<"+list_type+">\n" + result + "\n";	
+			return result;
+		});
+	}
+
+	// attacklab: strip sentinel
+	text = text.replace(/~0/,"");
+
+	return text;
+}
+
+_ProcessListItems = function(list_str) {
+//
+//  Process the contents of a single ordered or unordered list, splitting it
+//  into individual list items.
+//
+	// The $g_list_level global keeps track of when we're inside a list.
+	// Each time we enter a list, we increment it; when we leave a list,
+	// we decrement. If it's zero, we're not in a list anymore.
+	//
+	// We do this because when we're not inside a list, we want to treat
+	// something like this:
+	//
+	//    I recommend upgrading to version
+	//    8. Oops, now this line is treated
+	//    as a sub-list.
+	//
+	// As a single paragraph, despite the fact that the second line starts
+	// with a digit-period-space sequence.
+	//
+	// Whereas when we're inside a list (or sub-list), that line will be
+	// treated as the start of a sub-list. What a kludge, huh? This is
+	// an aspect of Markdown's syntax that's hard to parse perfectly
+	// without resorting to mind-reading. Perhaps the solution is to
+	// change the syntax rules such that sub-lists must start with a
+	// starting cardinal number; e.g. "1." or "a.".
+
+	g_list_level++;
+
+	// trim trailing blank lines:
+	list_str = list_str.replace(/\n{2,}$/,"\n");
+
+	// attacklab: add sentinel to emulate \z
+	list_str += "~0";
+
+	/*
+		list_str = list_str.replace(/
+			(\n)?							// leading line = $1
+			(^[ \t]*)						// leading whitespace = $2
+			([*+-]|\d+[.]) [ \t]+			// list marker = $3
+			([^\r]+?						// list item text   = $4
+			(\n{1,2}))
+			(?= \n* (~0 | \2 ([*+-]|\d+[.]) [ \t]+))
+		/gm, function(){...});
+	*/
+	list_str = list_str.replace(/(\n)?(^[ \t]*)([*+-]|\d+[.])[ \t]+([^\r]+?(\n{1,2}))(?=\n*(~0|\2([*+-]|\d+[.])[ \t]+))/gm,
+		function(wholeMatch,m1,m2,m3,m4){
+			var item = m4;
+			var leading_line = m1;
+			var leading_space = m2;
+
+			if (leading_line || (item.search(/\n{2,}/)>-1)) {
+				item = _RunBlockGamut(_Outdent(item));
+			}
+			else {
+				// Recursion for sub-lists:
+				item = _DoLists(_Outdent(item));
+				item = item.replace(/\n$/,""); // chomp(item)
+				item = _RunSpanGamut(item);
+			}
+
+			return  "" + item + "\n";
+		}
+	);
+
+	// attacklab: strip sentinel
+	list_str = list_str.replace(/~0/g,"");
+
+	g_list_level--;
+	return list_str;
+}
+
+
+var _DoCodeBlocks = function(text) {
+//
+//  Process Markdown `` blocks.
+//  
+
+	/*
+		text = text.replace(text,
+			/(?:\n\n|^)
+			(								// $1 = the code block -- one or more lines, starting with a space/tab
+				(?:
+					(?:[ ]{4}|\t)			// Lines must start with a tab or a tab-width of spaces - attacklab: g_tab_width
+					.*\n+
+				)+
+			)
+			(\n*[ ]{0,3}[^ \t\n]|(?=~0))	// attacklab: g_tab_width
+		/g,function(){...});
+	*/
+
+	// attacklab: sentinel workarounds for lack of \A and \Z, safari\khtml bug
+	text += "~0";
+	
+	text = text.replace(/(?:\n\n|^)((?:(?:[ ]{4}|\t).*\n+)+)(\n*[ ]{0,3}[^ \t\n]|(?=~0))/g,
+		function(wholeMatch,m1,m2) {
+			var codeblock = m1;
+			var nextChar = m2;
+		
+			codeblock = _EncodeCode( _Outdent(codeblock));
+			codeblock = _Detab(codeblock);
+			codeblock = codeblock.replace(/^\n+/g,""); // trim leading newlines
+			codeblock = codeblock.replace(/\n+$/g,""); // trim trailing whitespace
+
+			codeblock = "" + codeblock + "\n";
+
+			return hashBlock(codeblock) + nextChar;
+		}
+	);
+
+	// attacklab: strip sentinel
+	text = text.replace(/~0/,"");
+
+	return text;
+}
+
+var hashBlock = function(text) {
+	text = text.replace(/(^\n+|\n+$)/g,"");
+	return "\n\n~K" + (g_html_blocks.push(text)-1) + "K\n\n";
+}
+
+
+var _DoCodeSpans = function(text) {
+//
+//   *  Backtick quotes are used for  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:
+//	 
+//		 Just type foo `bar` baz at the prompt.
+//	 
+//	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 `bar` ...
+//
+
+	/*
+		text = text.replace(/
+			(^|[^\\])					// Character before opening ` can't be a backslash
+			(`+)						// $2 = Opening run of `
+			(							// $3 = The code block
+				[^\r]*?
+				[^`]					// attacklab: work around lack of lookbehind
+			)
+			\2							// Matching closer
+			(?!`)
+		/gm, function(){...});
+	*/
+
+	text = text.replace(/(^|[^\\])(`+)([^\r]*?[^`])\2(?!`)/gm,
+		function(wholeMatch,m1,m2,m3,m4) {
+			var c = m3;
+			c = c.replace(/^([ \t]*)/g,"");	// leading whitespace
+			c = c.replace(/[ \t]*$/g,"");	// trailing whitespace
+			c = _EncodeCode(c);
+			return m1+""+c+"";
+		});
+
+	return text;
+}
+
+
+var _EncodeCode = function(text) {
+//
+// 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.
+	text = text.replace(/&/g,"&");
+
+	// Do the angle bracket song and dance:
+	text = text.replace(//g,">");
+
+	// Now, escape characters that are magic in Markdown:
+	text = escapeCharacters(text,"\*_{}[]\\",false);
+
+// jj the line above breaks this:
+//---
+
+//* Item
+
+//   1. Subitem
+
+//            special char: *
+//---
+
+	return text;
+}
+
+
+var _DoItalicsAndBold = function(text) {
+
+	//  must go first:
+	text = text.replace(/(\*\*|__)(?=\S)([^\r]*?\S[*_]*)\1/g,
+		"$2");
+
+	text = text.replace(/(\*|_)(?=\S)([^\r]*?\S)\1/g,
+		"$2");
+
+	return text;
+}
+
+
+var _DoBlockQuotes = function(text) {
+
+	/*
+		text = text.replace(/
+		(								// Wrap whole match in $1
+			(
+				^[ \t]*>[ \t]?			// '>' at the start of a line
+				.+\n					// rest of the first line
+				(.+\n)*					// subsequent consecutive lines
+				\n*						// blanks
+			)+
+		)
+		/gm, function(){...});
+	*/
+
+	text = text.replace(/((^[ \t]*>[ \t]?.+\n(.+\n)*\n*)+)/gm,
+		function(wholeMatch,m1) {
+			var bq = m1;
+
+			// attacklab: hack around Konqueror 3.5.4 bug:
+			// "----------bug".replace(/^-/g,"") == "bug"
+
+			bq = bq.replace(/^[ \t]*>[ \t]?/gm,"~0");	// trim one level of quoting
+
+			// attacklab: clean up hack
+			bq = bq.replace(/~0/g,"");
+
+			bq = bq.replace(/^[ \t]+$/gm,"");		// trim whitespace-only lines
+			bq = _RunBlockGamut(bq);				// recurse
+			
+			bq = bq.replace(/(^|\n)/g,"$1  ");
+			// These leading spaces screw with  content, so we need to fix that:
+			bq = bq.replace(
+					/(\s*[^\r]+?<\/pre>)/gm,
+				function(wholeMatch,m1) {
+					var pre = m1;
+					// attacklab: hack around Konqueror 3.5.4 bug:
+					pre = pre.replace(/^  /mg,"~0");
+					pre = pre.replace(/~0/g,"");
+					return pre;
+				});
+			
+			return hashBlock("\n" + bq + "\n");
+		});
+	return text;
+}
+
+
+var _FormParagraphs = function(text) {
+//
+//  Params:
+//    $text - string to process with html  tags
+//
+
+	// Strip leading and trailing lines:
+	text = text.replace(/^\n+/g,"");
+	text = text.replace(/\n+$/g,"");
+
+	var grafs = text.split(/\n{2,}/g);
+	var grafsOut = new Array();
+
+	//
+	// Wrap 
 tags.
+	//
+	var end = grafs.length;
+	for (var i=0; i= 0) {
+			grafsOut.push(str);
+		}
+		else if (str.search(/\S/) >= 0) {
+			str = _RunSpanGamut(str);
+			str = str.replace(/^([ \t]*)/g,"
");
+			str += ""
+			grafsOut.push(str);
+		}
+
+	}
+
+	//
+	// Unhashify HTML blocks
+	//
+	end = grafsOut.length;
+	for (var i=0; i= 0) {
+			var blockText = g_html_blocks[RegExp.$1];
+			blockText = blockText.replace(/\$/g,"$$$$"); // Escape any dollar signs
+			grafsOut[i] = grafsOut[i].replace(/~K\d+K/,blockText);
+		}
+	}
+
+	return grafsOut.join("\n\n");
+}
+
+
+var _EncodeAmpsAndAngles = function(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 = text.replace(/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/g,"&");
+	
+	// Encode naked <'s
+	text = text.replace(/<(?![a-z\/?\$!])/gi,"<");
+	
+	return text;
+}
+
+
+var _EncodeBackslashEscapes = function(text) {
+//
+//   Parameter:  String.
+//   Returns:	The string, with after processing the following backslash
+//			   escape sequences.
+//
+
+	// attacklab: The polite way to do this is with the new
+	// escapeCharacters() function:
+	//
+	// 	text = escapeCharacters(text,"\\",true);
+	// 	text = escapeCharacters(text,"`*_{}[]()>#+-.!",true);
+	//
+	// ...but we're sidestepping its use of the (slow) RegExp constructor
+	// as an optimization for Firefox.  This function gets called a LOT.
+
+	text = text.replace(/\\(\\)/g,escapeCharacters_callback);
+	text = text.replace(/\\([`*_{}\[\]()>#+-.!])/g,escapeCharacters_callback);
+	return text;
+}
+
+
+var _DoAutoLinks = function(text) {
+
+	text = text.replace(/<((https?|ftp|dict):[^'">\s]+)>/gi,"$1");
+
+	// Email addresses: 
+
+	/*
+		text = text.replace(/
+			<
+			(?:mailto:)?
+			(
+				[-.\w]+
+				\@
+				[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+
+			)
+			>
+		/gi, _DoAutoLinks_callback());
+	*/
+	text = text.replace(/<(?:mailto:)?([-.\w]+\@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+)>/gi,
+		function(wholeMatch,m1) {
+			return _EncodeEmailAddress( _UnescapeSpecialChars(m1) );
+		}
+	);
+
+	return text;
+}
+
+
+var _EncodeEmailAddress = function(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.:
+//
+//	foo
+//	   @example.com
+//
+//  Based on a filter by Matthew Wickline, posted to the BBEdit-Talk
+//  mailing list: 
+//
+
+	// attacklab: why can't javascript speak hex?
+	function char2hex(ch) {
+		var hexDigits = '0123456789ABCDEF';
+		var dec = ch.charCodeAt(0);
+		return(hexDigits.charAt(dec>>4) + hexDigits.charAt(dec&15));
+	}
+
+	var encode = [
+		function(ch){return "&#"+ch.charCodeAt(0)+";";},
+		function(ch){return "&#x"+char2hex(ch)+";";},
+		function(ch){return ch;}
+	];
+
+	addr = "mailto:" + addr;
+
+	addr = addr.replace(/./g, function(ch) {
+		if (ch == "@") {
+		   	// this *must* be encoded. I insist.
+			ch = encode[Math.floor(Math.random()*2)](ch);
+		} else if (ch !=":") {
+			// leave ':' alone (to spot mailto: later)
+			var r = Math.random();
+			// roughly 10% raw, 45% hex, 45% dec
+			ch =  (
+					r > .9  ?	encode[2](ch)   :
+					r > .45 ?	encode[1](ch)   :
+								encode[0](ch)
+				);
+		}
+		return ch;
+	});
+
+	addr = "" + addr + "";
+	addr = addr.replace(/">.+:/g,"\">"); // strip the mailto: from the visible part
+
+	return addr;
+}
+
+
+var _UnescapeSpecialChars = function(text) {
+//
+// Swap back in all the special characters we've hidden.
+//
+	text = text.replace(/~E(\d+)E/g,
+		function(wholeMatch,m1) {
+			var charCodeToReplace = parseInt(m1);
+			return String.fromCharCode(charCodeToReplace);
+		}
+	);
+	return text;
+}
+
+
+var _Outdent = function(text) {
+//
+// Remove one level of line-leading tabs or spaces
+//
+
+	// attacklab: hack around Konqueror 3.5.4 bug:
+	// "----------bug".replace(/^-/g,"") == "bug"
+
+	text = text.replace(/^(\t|[ ]{1,4})/gm,"~0"); // attacklab: g_tab_width
+
+	// attacklab: clean up hack
+	text = text.replace(/~0/g,"")
+
+	return text;
+}
+
+var _Detab = function(text) {
+// attacklab: Detab's completely rewritten for speed.
+// In perl we could fix it by anchoring the regexp with \G.
+// In javascript we're less fortunate.
+
+	// expand first n-1 tabs
+	text = text.replace(/\t(?=\t)/g,"    "); // attacklab: g_tab_width
+
+	// replace the nth with two sentinels
+	text = text.replace(/\t/g,"~A~B");
+
+	// use the sentinel to anchor our regex so it doesn't explode
+	text = text.replace(/~B(.+?)~A/g,
+		function(wholeMatch,m1,m2) {
+			var leadingText = m1;
+			var numSpaces = 4 - leadingText.length % 4;  // attacklab: g_tab_width
+
+			// there *must* be a better way to do this:
+			for (var i=0; i

"+_21(m1)+"

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" + _RunSpanGamut(m1) + "

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