From 6ff939451c0e42c2438d49642bb030b4dfa601db Mon Sep 17 00:00:00 2001
From: bootstraponline <cafe@bootstraponline.com>
Date: Tue, 3 Jul 2012 13:55:08 -0600
Subject: [PATCH] Update livepreview. Update ace. Replace pagedown with
 sundown. Live preview is now able to render markdown identical to regular
 gollum by leveraging the same library.

Thanks to @kripken for explaining how to best use emscripten for sundown.
---
 .../public/gollum/livepreview/index.html      |   48 +-
 .../lib/ace/commands/multi_select_commands.js |    2 +-
 .../livepreview/js/ace/lib/ace/config.js      |    7 +-
 .../livepreview/js/ace/lib/ace/css/editor.css |   39 +-
 .../ace/lib/ace/edit_session/bracket_match.js |   13 +-
 .../livepreview/js/ace/lib/ace/editor.js      |    6 +-
 .../js/ace/lib/ace/keyboard/state_handler.js  |    2 +-
 .../js/ace/lib/ace/layer/marker.js            |   28 +-
 .../livepreview/js/ace/lib/ace/layer/text.js  |   54 +-
 .../livepreview/js/ace/lib/ace/lib/event.js   |    4 +-
 .../js/ace/lib/ace/mode/behaviour/html.js     |   98 ++
 .../js/ace/lib/ace/mode/behaviour/xml.js      |   61 +-
 .../js/ace/lib/ace/mode/c9search.js           |   12 -
 .../lib/ace/mode/c9search_highlight_rules.js  |    2 +-
 .../livepreview/js/ace/lib/ace/mode/coffee.js |    2 +-
 .../lib/ace/mode/coffee_highlight_rules.js    |    2 +-
 .../js/ace/lib/ace/mode/folding/c9search.js   |   52 +-
 .../js/ace/lib/ace/mode/folding/coffee.js     |  127 ++
 .../ace/lib/ace/mode/folding/coffee_test.js   |  108 ++
 .../js/ace/lib/ace/mode/folding/fold_mode.js  |   30 +-
 .../js/ace/lib/ace/mode/folding/pythonic.js   |    2 +-
 .../ace/lib/ace/mode/folding/pythonic_test.js |    7 +-
 .../livepreview/js/ace/lib/ace/mode/html.js   |    4 +-
 .../ace/lib/ace/mode/html_highlight_rules.js  |   25 +-
 .../ace/mode/javascript_highlight_rules.js    |    2 +-
 .../js/ace/lib/ace/mode/luapage.js            |    2 +-
 .../lib/ace/mode/luapage_highlight_rules.js   |    2 +-
 .../js/ace/lib/ace/mode/xml_util.js           |   36 +-
 .../lib/ace/mouse/default_gutter_handler.js   |    9 +-
 .../js/ace/lib/ace/mouse/default_handlers.js  |   17 +-
 .../js/ace/lib/ace/requirejs/text.js          |   10 +-
 .../js/ace/lib/ace/test/all_browser.js        |    1 +
 .../js/ace/lib/ace/theme/chrome.css           |    8 +-
 .../js/ace/lib/ace/theme/clouds.css           |    3 +-
 .../js/ace/lib/ace/theme/clouds_midnight.css  |    9 +-
 .../js/ace/lib/ace/theme/cobalt.css           |    9 +-
 .../js/ace/lib/ace/theme/crimson_editor.css   |    7 +-
 .../livepreview/js/ace/lib/ace/theme/dawn.css |    3 +-
 .../js/ace/lib/ace/theme/dreamweaver.css      |    1 -
 .../js/ace/lib/ace/theme/eclipse.css          |    5 +-
 .../js/ace/lib/ace/theme/github.css           |   59 +-
 .../js/ace/lib/ace/theme/github.js            |    2 +-
 .../js/ace/lib/ace/theme/idle_fingers.css     |    9 +-
 .../js/ace/lib/ace/theme/kr_theme.css         |    9 +-
 .../js/ace/lib/ace/theme/merbivore.css        |    7 +-
 .../js/ace/lib/ace/theme/merbivore_soft.css   |    9 +-
 .../js/ace/lib/ace/theme/mono_industrial.css  |    7 +-
 .../js/ace/lib/ace/theme/monokai.css          |    3 +-
 .../js/ace/lib/ace/theme/pastel_on_dark.css   |    9 +-
 .../js/ace/lib/ace/theme/solarized_dark.css   |    3 +-
 .../js/ace/lib/ace/theme/solarized_light.css  |    3 +-
 .../js/ace/lib/ace/theme/textmate.css         |    6 +-
 .../js/ace/lib/ace/theme/tomorrow.css         |    7 +-
 .../js/ace/lib/ace/theme/tomorrow_night.css   |    9 +-
 .../ace/lib/ace/theme/tomorrow_night_blue.css |    5 +-
 .../lib/ace/theme/tomorrow_night_bright.css   |    9 +-
 .../lib/ace/theme/tomorrow_night_eighties.css |    9 +-
 .../js/ace/lib/ace/theme/twilight.css         |    9 +-
 .../js/ace/lib/ace/theme/vibrant_ink.css      |    9 +-
 .../js/ace/lib/ace/virtual_renderer.js        |   40 +-
 .../livepreview/js/livepreview/livepreview.js |   94 +-
 .../js/pagedown/Markdown.Converter.js         | 1355 -----------------
 .../js/pagedown/Markdown.Sanitizer.js         |  109 --
 .../livepreview/js/sundown/sundown_o2.js      |    1 +
 .../livepreview/licenses/pagedown/LICENSE.txt |   32 -
 .../livepreview/licenses/sundown/sundown.txt  |    4 +
 .../public/gollum/livepreview/readme.md       |   36 +-
 67 files changed, 807 insertions(+), 1906 deletions(-)
 create mode 100644 lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/behaviour/html.js
 create mode 100644 lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/coffee.js
 create mode 100644 lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/coffee_test.js
 delete mode 100644 lib/gollum/frontend/public/gollum/livepreview/js/pagedown/Markdown.Converter.js
 delete mode 100644 lib/gollum/frontend/public/gollum/livepreview/js/pagedown/Markdown.Sanitizer.js
 create mode 100644 lib/gollum/frontend/public/gollum/livepreview/js/sundown/sundown_o2.js
 delete mode 100644 lib/gollum/frontend/public/gollum/livepreview/licenses/pagedown/LICENSE.txt
 create mode 100644 lib/gollum/frontend/public/gollum/livepreview/licenses/sundown/sundown.txt

diff --git a/lib/gollum/frontend/public/gollum/livepreview/index.html b/lib/gollum/frontend/public/gollum/livepreview/index.html
index 17fd51cd..17b8891c 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/index.html
+++ b/lib/gollum/frontend/public/gollum/livepreview/index.html
@@ -2,41 +2,45 @@
 <html>
 <head>
 <title>Live Preview</title>
-<link rel="stylesheet" type="text/css" href="../css/template.css" />
-<link rel="stylesheet" type="text/css" href="css/custom.css" />
+<link rel='stylesheet' type='text/css' href='../css/template.css' />
+<link rel='stylesheet' type='text/css' href='css/custom.css' />
 </head>
 
 <body>
-<div id="editor"></div>
+<div id='editor'></div>
 
-<div id="previewframe"><div id="contentframe" class="markdown-body"></div></div>
+<div id='previewframe'><div id='contentframe' class='markdown-body'></div></div>
 <!-- tool panel from notepage.es. save & savecomment icons from Retina Display Icon Set. -->  
-<div id="toolpanel" class="toolpanel edit" style="width: 500px; right: 0px; visibility: hidden;">
-  <a id="save" class="edit"><img src="images/save_24.png" alt="Save" title="Save"></a>
-  <a id="savecomment" class="edit"><img src="images/savecomment_24.png" alt="Save with comment" title="Save with comment"></a>
-  <a id="toggle" class="edit" href="javascript:void(0)" onclick="jsm.toggleLeftRight();"><img src="images/lr_24.png" alt="Toggle left to right" title="Toggle left to right"></a>
+<div id='toolpanel' class='toolpanel edit' style='width: 500px; right: 0px; visibility: hidden;'>
+  <a id='save' class='edit'><img src='images/save_24.png' alt='Save' title='Save'></a>
+  <a id='savecomment' class='edit'><img src='images/savecomment_24.png' alt='Save with comment' title='Save with comment'></a>
+  <a id='toggle' class='edit' href='javascript:void(0)' onclick='jsm.toggleLeftRight();'><img src='images/lr_24.png' alt='Toggle left to right' title='Toggle left to right'></a>
 </div>
 
-<div id="commenttoolpanel" class="toolpanel edit" style="width: 500px; right: 0px; ">
-  <a id="savecommentconfirm" class="edit"><img src="images/savecomment_24.png" alt="Confirm save with comment" title="Confirm save with comment"></a>
-  <a id="commentcancel" class="edit"><img src="images/cancel_24.png" alt="Cancel save with comment" title="Cancel save with comment"></a>
+<div id='commenttoolpanel' class='toolpanel edit' style='width: 500px; right: 0px; '>
+  <a id='savecommentconfirm' class='edit'><img src='images/savecomment_24.png' alt='Confirm save with comment' title='Confirm save with comment'></a>
+  <a id='commentcancel' class='edit'><img src='images/cancel_24.png' alt='Cancel save with comment' title='Cancel save with comment'></a>
 </div>
-<div id="comment"></div>
-<div id="darkness"></div>
+<div id='comment'></div>
+<div id='darkness'></div>
 
-<script type="text/javascript">
+<script type='text/javascript'>
 var require = {
   paths: {
-    ace: "js/ace/lib/ace"
+    ace: 'js/ace/lib/ace'
   }
 };
 </script>
-<script src="js/requirejs/require.js" type="text/javascript" charset="utf-8"></script>
-<script src="js/pagedown/Markdown.Converter.js" type="text/javascript" charset="utf-8"></script>
-<script src="js/pagedown/Markdown.Sanitizer.js" type="text/javascript" charset="utf-8"></script>
-<script src="js/jquery/jquery-1.7.2.min.js" type="text/javascript" charset="utf-8"></script>
-<script src="js/debounce/jquery.ba-throttle-debounce.js" type="text/javascript" charset="utf-8"></script>
-<script src="js/livepreview/livepreview.js" type="text/javascript" charset="utf-8"></script>
-<script src="https://c328740.ssl.cf1.rackcdn.com/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript" charset="utf-8"></script>
+<script src='js/requirejs/require.js'></script>
+<script src='js/jquery/jquery-1.7.2.min.js'></script>
+<script src='js/debounce/jquery.ba-throttle-debounce.js'></script>
+<script src='js/sundown/sundown_o2.js'></script>
+<script src='js/livepreview/livepreview.js'></script>
+<script>(function(d,j){
+j = d.createElement('script');
+j.src = 'https://c328740.ssl.cf1.rackcdn.com/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML';
+(d.head || d.getElementsByTagName('head')[0]).appendChild(j);
+}(document));
+</script>
 </body>
 </html>
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/commands/multi_select_commands.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/commands/multi_select_commands.js
index ed396fb3..ebac5cc7 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/commands/multi_select_commands.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/commands/multi_select_commands.js
@@ -92,7 +92,7 @@ exports.multiSelectCommands = [{
     bindKey: "esc",
     exec: function(editor) { editor.exitMultiSelectMode(); },
     readonly: true,
-    isAvailable: function(editor) {return editor.inMultiSelectMode}
+    isAvailable: function(editor) {return editor && editor.inMultiSelectMode}
 }];
 
 var HashHandler = require("../keyboard/hash_handler").HashHandler;
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/config.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/config.js
index 73a83d51..0bdaf786 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/config.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/config.js
@@ -97,10 +97,9 @@ exports.init = function() {
             }
         }
 
-        var m = src.match(/^(?:(.*\/)ace\.js)(?:\?|$)/);
-        if (m) {
-            scriptUrl = m[1] || m[2];
-        }
+        var m = src.match(/^(.*)\/ace(\-\w+)?\.js(\?|$)/);
+        if (m)
+            scriptUrl = m[1];
     }
     
     if (scriptUrl) {
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/css/editor.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/css/editor.css
index c1cd0f0c..0a668fff 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/css/editor.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/css/editor.css
@@ -50,9 +50,11 @@
 
 .ace_gutter-cell.ace_info {
     background-image: url("data:image/gif;base64,R0lGODlhEAAQAMQAAAAAAEFBQVJSUl5eXmRkZGtra39/f4WFhYmJiZGRkaampry8vMPDw8zMzNXV1dzc3OTk5Orq6vDw8P///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAkAABQALAAAAAAQABAAAAUuICWOZGmeaBml5XGwFCQSBGyXRSAwtqQIiRuiwIM5BoYVbEFIyGCQoeJGrVptIQA7");
-    background-repeat: no-repeat;
     background-position: 2px center;
 }
+.ace_dark .ace_gutter-cell.ace_info {
+    background-image: url("data:image/png;base64,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");
+}
 
 .ace_editor .ace_sb {
     position: absolute;
@@ -246,9 +248,11 @@
 
     background-image: url("data:image/png,%89PNG%0D%0A%1A%0A%00%00%00%0DIHDR%00%00%00%05%00%00%00%05%08%06%00%00%00%8Do%26%E5%00%00%004IDATx%DAe%8A%B1%0D%000%0C%C2%F2%2CK%96%BC%D0%8F9%81%88H%E9%D0%0E%96%C0%10%92%3E%02%80%5E%82%E4%A9*-%EEsw%C8%CC%11%EE%96w%D8%DC%E9*Eh%0C%151(%00%00%00%00IEND%AEB%60%82");
     background-repeat: no-repeat;
-    background-position: center 5px;
+    background-position: center 4px;
 
     border-radius: 3px;
+    
+    border: 1px solid transparent;
 }
 
 .ace_fold-widget.end {
@@ -262,11 +266,8 @@
 .ace_fold-widget:hover {
     border: 1px solid rgba(0, 0, 0, 0.3);
     background-color: rgba(255, 255, 255, 0.2);
-    -moz-box-shadow:inset 0 1px 1px rgba(255, 255, 255, 0.7);
     -moz-box-shadow: 0 1px 1px rgba(255, 255, 255, 0.7);
-    -webkit-box-shadow:inset 0 1px 1px rgba(255, 255, 255, 0.7);
     -webkit-box-shadow: 0 1px 1px rgba(255, 255, 255, 0.7);
-    box-shadow:inset 0 1px 1px rgba(255, 255, 255, 0.7);
     box-shadow: 0 1px 1px rgba(255, 255, 255, 0.7);
     background-position: center 4px;
 }
@@ -274,14 +275,34 @@
 .ace_fold-widget:active {
     border: 1px solid rgba(0, 0, 0, 0.4);
     background-color: rgba(0, 0, 0, 0.05);
-    -moz-box-shadow:inset 0 1px 1px rgba(255, 255, 255);
     -moz-box-shadow: 0 1px 1px rgba(255, 255, 255, 0.8);
-    -webkit-box-shadow:inset 0 1px 1px rgba(255, 255, 255);
     -webkit-box-shadow: 0 1px 1px rgba(255, 255, 255, 0.8);
-    box-shadow:inset 0 1px 1px rgba(255, 255, 255);
     box-shadow: 0 1px 1px rgba(255, 255, 255, 0.8);
 }
-
+/**
+ * Dark version for fold widgets
+ */
+.ace_dark .ace_fold-widget {
+    background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHklEQVQIW2P4//8/AzoGEQ7oGCaLLAhWiSwB146BAQCSTPYocqT0AAAAAElFTkSuQmCC");
+}
+.ace_dark .ace_fold-widget.end {
+    background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAH0lEQVQIW2P4//8/AxQ7wNjIAjDMgC4AxjCVKBirIAAF0kz2rlhxpAAAAABJRU5ErkJggg==");
+}
+.ace_dark .ace_fold-widget.closed {
+    background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAAFCAYAAACAcVaiAAAAHElEQVQIW2P4//+/AxAzgDADlOOAznHAKgPWAwARji8UIDTfQQAAAABJRU5ErkJggg==");
+}
+.ace_dark .ace_fold-widget:hover {
+    box-shadow: 0 1px 1px rgba(255, 255, 255, 0.2);
+    background-color: rgba(255, 255, 255, 0.1);
+}
+.ace_dark .ace_fold-widget:active {
+    -moz-box-shadow: 0 1px 1px rgba(255, 255, 255, 0.2);
+    -webkit-box-shadow: 0 1px 1px rgba(255, 255, 255, 0.2);
+    box-shadow: 0 1px 1px rgba(255, 255, 255, 0.2);
+}
+    
+    
+    
 .ace_fold-widget.invalid {
     background-color: #FFB4B4;
     border-color: #DE5555;
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/edit_session/bracket_match.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/edit_session/bracket_match.js
index 83c8f572..9b977b8c 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/edit_session/bracket_match.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/edit_session/bracket_match.js
@@ -94,7 +94,7 @@ function BracketMatch() {
         var match = chr && chr.match(/([\(\[\{])|([\)\]\}])/);
         if (!match) {
             chr = line.charAt(pos.column);
-            pos.column++;
+            pos = {row: pos.row, column: pos.column + 1};
             match = chr && chr.match(/([\(\[\{])|([\)\]\}])/);
             before = false;
         }
@@ -123,9 +123,6 @@ function BracketMatch() {
             range.cursor = range.start;
         }
         
-        if (!before)
-            pos.column--;
-        
         return range;
     };
 
@@ -194,7 +191,7 @@ function BracketMatch() {
         return null;
     };
 
-    this.$findClosingBracket = function(bracket, position, typeRe, allowBlankLine) {
+    this.$findClosingBracket = function(bracket, position, typeRe) {
         var closingBracket = this.$brackets[bracket];
         var depth = 1;
 
@@ -239,12 +236,6 @@ function BracketMatch() {
             // whose type matches typeRe
             do {
                 token = iterator.stepForward();
-                if (allowBlankLine) {
-                    // if you've reached the doc end, or, you match a new content  line 
-                    if (token === null || token.type == "string") {
-                        return {row: iterator.getCurrentTokenRow() + (token === null ? 1 : -1), column: 0}; 
-                    }
-                }
             } while (token && !typeRe.test(token.type));
 
             if (token == null)
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/editor.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/editor.js
index 1efac5fc..5b387f98 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/editor.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/editor.js
@@ -1772,7 +1772,7 @@ var Editor = function(renderer, session) {
 
         var range = this.session.getBracketRange(cursor);
         if (!range) {
-            range = editor.find({
+            range = this.find({
                 needle: /[{}()\[\]]/g,
                 preventScroll:true,
                 start: {row: cursor.row, column: cursor.column - 1}
@@ -1787,10 +1787,10 @@ var Editor = function(renderer, session) {
         pos = range && range.cursor || pos;
         if (pos) {
             if (select) {
-                if (range && range.isEqual(editor.getSelectionRange()))
+                if (range && range.isEqual(this.getSelectionRange()))
                     this.clearSelection();
                 else
-                    this.selection.selectTo(pos.row, pos.column);            
+                    this.selection.selectTo(pos.row, pos.column);
             } else {
                 this.clearSelection();
                 this.moveCursorTo(pos.row, pos.column);
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/keyboard/state_handler.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/keyboard/state_handler.js
index c7efe552..fa7e5d5c 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/keyboard/state_handler.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/keyboard/state_handler.js
@@ -105,7 +105,7 @@ StateHandler.prototype = {
 
         var bufferObj = {
             bufferToUse: bufferToUse,
-            symbolicName: symbolicName,
+            symbolicName: symbolicName
         };
 
         if (e) {
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/layer/marker.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/layer/marker.js
index f5999338..127cf7f3 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/layer/marker.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/layer/marker.js
@@ -73,7 +73,7 @@ var Marker = function(parentEl) {
 
 
         var html = [];
-        for ( var key in this.markers) {
+        for (var key in this.markers) {
             var marker = this.markers[key];
 
             if (!marker.range) {
@@ -140,29 +140,25 @@ var Marker = function(parentEl) {
         }
     };
 
-     // Draws a multi line marker, where lines span the full width
-     this.drawMultiLineMarker = function(stringBuilder, range, clazz, layerConfig, type) {
+    // Draws a multi line marker, where lines span the full width
+    this.drawMultiLineMarker = function(stringBuilder, range, clazz, config, type) {
         var padding = type === "background" ? 0 : this.$padding;
-        var layerWidth = layerConfig.width + 2 * this.$padding - padding;
         // from selection start to the end of the line
-        var height = layerConfig.lineHeight;
-        var width = Math.round(layerWidth - (range.start.column * layerConfig.characterWidth));
-        var top = this.$getTop(range.start.row, layerConfig);
-        var left = Math.round(
-            padding + range.start.column * layerConfig.characterWidth
-        );
+        var height = config.lineHeight;
+        var top = this.$getTop(range.start.row, config);
+        var left = Math.round(padding + range.start.column * config.characterWidth);
 
         stringBuilder.push(
             "<div class='", clazz, " start' style='",
             "height:", height, "px;",
-            "width:", width, "px;",
+            "right:0;",
             "top:", top, "px;",
             "left:", left, "px;'></div>"
         );
 
         // from start of the last line to the selection end
-        top = this.$getTop(range.end.row, layerConfig);
-        width = Math.round(range.end.column * layerConfig.characterWidth);
+        top = this.$getTop(range.end.row, config);
+        var width = Math.round(range.end.column * config.characterWidth);
 
         stringBuilder.push(
             "<div class='", clazz, "' style='",
@@ -173,15 +169,15 @@ var Marker = function(parentEl) {
         );
 
         // all the complete lines
-        height = (range.end.row - range.start.row - 1) * layerConfig.lineHeight;
+        height = (range.end.row - range.start.row - 1) * config.lineHeight;
         if (height < 0)
             return;
-        top = this.$getTop(range.start.row + 1, layerConfig);
+        top = this.$getTop(range.start.row + 1, config);
 
         stringBuilder.push(
             "<div class='", clazz, "' style='",
             "height:", height, "px;",
-            "width:", layerWidth, "px;",
+            "right:0;",
             "top:", top, "px;",
             "left:", padding, "px;'></div>"
         );
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/layer/text.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/layer/text.js
index 92683967..e96dff28 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/layer/text.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/layer/text.js
@@ -131,7 +131,7 @@ var Text = function(parentEl) {
                 container.appendChild(measureNode);
             }
         }
-        
+
         // Size and width can be null if the editor is not visible or
         // detached from the document
         if (!this.element.offsetWidth)
@@ -153,7 +153,7 @@ var Text = function(parentEl) {
             return null;
 
         return size;
-    } 
+    }
     : function() {
         if (!this.$measureNode) {
             var measureNode = this.$measureNode = dom.createElement("div");
@@ -178,7 +178,7 @@ var Text = function(parentEl) {
 
             container.appendChild(measureNode);
         }
-        
+
         var rect = this.$measureNode.getBoundingClientRect();
 
         var size = {
@@ -382,7 +382,7 @@ var Text = function(parentEl) {
         "lparen": true
     };
 
-    this.$renderToken = function(stringBuilder, screenColumn, token, value) {        
+    this.$renderToken = function(stringBuilder, screenColumn, token, value) {
         var self = this;
         var replaceReg = /\t|&|<|( +)|([\u0000-\u0019\u00a0\u1680\u180E\u2000-\u200b\u2028\u2029\u202F\u205F\u3000\uFEFF])|[\u1100-\u115F\u11A3-\u11A7\u11FA-\u11FF\u2329-\u232A\u2E80-\u2E99\u2E9B-\u2EF3\u2F00-\u2FD5\u2FF0-\u2FFB\u3000-\u303E\u3041-\u3096\u3099-\u30FF\u3105-\u312D\u3131-\u318E\u3190-\u31BA\u31C0-\u31E3\u31F0-\u321E\u3220-\u3247\u3250-\u32FE\u3300-\u4DBF\u4E00-\uA48C\uA490-\uA4C6\uA960-\uA97C\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFAFF\uFE10-\uFE19\uFE30-\uFE52\uFE54-\uFE66\uFE68-\uFE6B\uFF01-\uFF60\uFFE0-\uFFE6]/g;
         var replaceFunc = function(c, a, b, tabIdx, idx4) {
@@ -447,7 +447,7 @@ var Text = function(parentEl) {
                 "'>"
             );
         }
-        
+
         for (var i = 0; i < tokens.length; i++) {
             var token = tokens[i];
             var value = token.value;
@@ -461,12 +461,12 @@ var Text = function(parentEl) {
             else {
                 while (chars + value.length >= splitChars) {
                     screenColumn = self.$renderToken(
-                        stringBuilder, screenColumn, 
+                        stringBuilder, screenColumn,
                         token, value.substring(0, splitChars - chars)
                     );
                     value = value.substring(splitChars - chars);
                     chars = splitChars;
-                    
+
                     if (!onlyContents) {
                         stringBuilder.push("</div>",
                             "<div class='ace_line' style='height:",
@@ -510,9 +510,9 @@ var Text = function(parentEl) {
     };
 
     this.$renderFoldLine = function(stringBuilder, row, tokens, onlyContents) {
-        var session = this.session,
-            foldLine = session.getFoldLine(row),
-            renderTokens = [];
+        var session = this.session;
+        var foldLine = session.getFoldLine(row);
+        var renderTokens = [];
 
         function addTokens(tokens, from, to) {
             var idx = 0, col = 0;
@@ -520,16 +520,14 @@ var Text = function(parentEl) {
                 col += tokens[idx].value.length;
                 idx++;
 
-                if (idx == tokens.length) {
+                if (idx == tokens.length)
                     return;
-                }
             }
             if (col != from) {
                 var value = tokens[idx].value.substring(from - col);
                 // Check if the token value is longer then the from...to spacing.
-                if (value.length > (to - from)) {
+                if (value.length > (to - from))
                     value = value.substring(0, to - from);
-                }
 
                 renderTokens.push({
                     type: tokens[idx].type,
@@ -540,15 +538,15 @@ var Text = function(parentEl) {
                 idx += 1;
             }
 
-            while (col < to) {
+            while (col < to && idx < tokens.length) {
                 var value = tokens[idx].value;
                 if (value.length + col > to) {
-                    value = value.substring(0, to - col);
-                }
-                renderTokens.push({
-                    type: tokens[idx].type,
-                    value: value
-                });
+                    renderTokens.push({
+                        type: tokens[idx].type,
+                        value: value.substring(0, to - col)
+                    });
+                } else
+                    renderTokens.push(tokens[idx]);
                 col += value.length;
                 idx += 1;
             }
@@ -556,27 +554,27 @@ var Text = function(parentEl) {
 
         foldLine.walk(function(placeholder, row, column, lastColumn, isNewRow) {
             if (placeholder) {
-               renderTokens.push({
+                renderTokens.push({
                     type: "fold",
                     value: placeholder
                 });
             } else {
                 if (isNewRow)
-                   tokens = this.session.getTokens(row);
+                    tokens = session.getTokens(row);
 
                 if (tokens.length)
                     addTokens(tokens, lastColumn, column);
             }
-        }.bind(this), foldLine.end.row, this.session.getLine(foldLine.end.row).length);
+        }, foldLine.end.row, this.session.getLine(foldLine.end.row).length);
 
-        // TODO: Build a fake splits array!
-        var splits = this.session.$useWrapMode?this.session.$wrapData[row]:null;
+        // splits for foldline are stored at its' first row
+        var splits = this.session.$useWrapMode ? this.session.$wrapData[row] : null;
         this.$renderLineCore(stringBuilder, row, renderTokens, splits, onlyContents);
     };
-    
+
     this.$useLineGroups = function() {
         // For the updateLines function to work correctly, it's important that the
-        // child nodes of this.element correspond on a 1-to-1 basis to rows in the 
+        // child nodes of this.element correspond on a 1-to-1 basis to rows in the
         // document (as distinct from lines on the screen). For sessions that are
         // wrapped, this means we need to add a layer to the node hierarchy (tagged
         // with the class name ace_line_group).
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/lib/event.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/lib/event.js
index c4fff32a..1afca2a2 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/lib/event.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/lib/event.js
@@ -227,7 +227,7 @@ exports.addMultiMouseDownListener = function(el, timeouts, eventHandler, callbac
 
 function normalizeCommandKeys(callback, e, keyCode) {
     var hashId = 0;
-    if (useragent.isOpera && useragent.isMac) {
+    if ((useragent.isOpera && !("KeyboardEvent" in window)) && useragent.isMac) {
         hashId = 0 | (e.metaKey ? 1 : 0) | (e.altKey ? 2 : 0)
             | (e.shiftKey ? 4 : 0) | (e.ctrlKey ? 8 : 0);
     } else {
@@ -268,7 +268,7 @@ function normalizeCommandKeys(callback, e, keyCode) {
 
 exports.addCommandKeyListener = function(el, callback) {
     var addListener = exports.addListener;
-    if (useragent.isOldGecko || useragent.isOpera) {
+    if (useragent.isOldGecko || (useragent.isOpera && !("KeyboardEvent" in window))) {
         // Old versions of Gecko aka. Firefox < 4.0 didn't repeat the keydown
         // event if the user pressed the key for a longer time. Instead, the
         // keydown event was fired once and later on only the keypress event.
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/behaviour/html.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/behaviour/html.js
new file mode 100644
index 00000000..6c009ada
--- /dev/null
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/behaviour/html.js
@@ -0,0 +1,98 @@
+/* vim:ts=4:sts=4:sw=4:
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Ajax.org Code Editor (ACE).
+ *
+ * The Initial Developer of the Original Code is
+ * Ajax.org B.V.
+ * Portions created by the Initial Developer are Copyright (C) 2010
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *      Chris Spencer <chris.ag.spencer AT googlemail DOT com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+define(function(require, exports, module) {
+"use strict";
+
+var oop = require("../../lib/oop");
+var XmlBehaviour = require("../behaviour/xml").XmlBehaviour;
+var CstyleBehaviour = require("./cstyle").CstyleBehaviour;
+var TokenIterator = require("../../token_iterator").TokenIterator;
+var voidElements = ['area', 'base', 'br', 'col', 'command', 'embed', 'hr', 'img', 'input', 'keygen', 'link', 'meta', 'param', 'source', 'track', 'wbr'];
+
+function hasType(token, type) {
+    var hasType = true;
+    var typeList = token.type.split('.');
+    var needleList = type.split('.');
+    needleList.forEach(function(needle){
+        if (typeList.indexOf(needle) == -1) {
+            hasType = false;
+            return false;
+        }
+    });
+    return hasType;
+}
+
+var HtmlBehaviour = function () {
+
+    this.inherit(XmlBehaviour); // Get xml behaviour
+    
+    this.add("autoclosing", "insertion", function (state, action, editor, session, text) {
+        if (text == '>') {
+            var position = editor.getCursorPosition();
+            var iterator = new TokenIterator(session, position.row, position.column);
+            var token = iterator.getCurrentToken();
+            var atCursor = false;
+            if (!token || !hasType(token, 'meta.tag') && !(hasType(token, 'text') && token.value.match('/'))){
+                do {
+                    token = iterator.stepBackward();
+                } while (token && (hasType(token, 'string') || hasType(token, 'keyword.operator') || hasType(token, 'entity.attribute-name') || hasType(token, 'text')));
+            } else {
+                atCursor = true;
+            }
+            if (!token || !hasType(token, 'meta.tag-name') || iterator.stepBackward().value.match('/')) {
+                return
+            }
+            var element = token.value;
+            if (atCursor){
+                var element = element.substring(0, position.column - token.start);
+            }
+            if (voidElements.indexOf(element) !== -1){
+                return;
+            }
+            return {
+               text: '>' + '</' + element + '>',
+               selection: [1, 1]
+            }
+        }
+    });
+}
+oop.inherits(HtmlBehaviour, XmlBehaviour);
+
+exports.HtmlBehaviour = HtmlBehaviour;
+});
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/behaviour/xml.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/behaviour/xml.js
index bdfa9d82..34e8510b 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/behaviour/xml.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/behaviour/xml.js
@@ -42,34 +42,55 @@ define(function(require, exports, module) {
 var oop = require("../../lib/oop");
 var Behaviour = require("../behaviour").Behaviour;
 var CstyleBehaviour = require("./cstyle").CstyleBehaviour;
+var TokenIterator = require("../../token_iterator").TokenIterator;
+
+function hasType(token, type) {
+    var hasType = true;
+    var typeList = token.type.split('.');
+    var needleList = type.split('.');
+    needleList.forEach(function(needle){
+        if (typeList.indexOf(needle) == -1) {
+            hasType = false;
+            return false;
+        }
+    });
+    return hasType;
+}
 
 var XmlBehaviour = function () {
     
     this.inherit(CstyleBehaviour, ["string_dquotes"]); // Get string behaviour
     
-    this.add("brackets", "insertion", function (state, action, editor, session, text) {
-        if (text == '<') {
-            var selection = editor.getSelectionRange();
-            var selected = session.doc.getTextRange(selection);
-            if (selected !== "") {
-                return false;
+    this.add("autoclosing", "insertion", function (state, action, editor, session, text) {
+        if (text == '>') {
+            var position = editor.getCursorPosition();
+            var iterator = new TokenIterator(session, position.row, position.column);
+            var token = iterator.getCurrentToken();
+            var atCursor = false;
+            if (!token || !hasType(token, 'meta.tag') && !(hasType(token, 'text') && token.value.match('/'))){
+                do {
+                    token = iterator.stepBackward();
+                } while (token && (hasType(token, 'string') || hasType(token, 'keyword.operator') || hasType(token, 'entity.attribute-name') || hasType(token, 'text')));
             } else {
-                return {
-                    text: '<>',
-                    selection: [1, 1]
-                }
+                atCursor = true;
             }
-        } else if (text == '>') {
-            var cursor = editor.getCursorPosition();
-            var line = session.doc.getLine(cursor.row);
-            var rightChar = line.substring(cursor.column, cursor.column + 1);
-            if (rightChar == '>') { // need some kind of matching check here
-                return {
-                    text: '',
-                    selection: [1, 1]
-                }
+            if (!token || !hasType(token, 'meta.tag-name') || iterator.stepBackward().value.match('/')) {
+                return
             }
-        } else if (text == "\n") {
+            var tag = token.value;
+            if (atCursor){
+                var tag = tag.substring(0, position.column - token.start);
+            }
+
+            return {
+               text: '>' + '</' + tag + '>',
+               selection: [1, 1]
+            }
+        }
+    });
+
+    this.add('autoindent', 'insertion', function (state, action, editor, session, text) {
+        if (text == "\n") {
             var cursor = editor.getCursorPosition();
             var line = session.doc.getLine(cursor.row);
             var rightChars = line.substring(cursor.column, cursor.column + 2);
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/c9search.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/c9search.js
index cff2b22a..37a89aab 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/c9search.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/c9search.js
@@ -56,18 +56,6 @@ oop.inherits(Mode, TextMode);
     
     this.getNextLineIndent = function(state, line, tab) {
         var indent = this.$getIndent(line);
-
-        // ignore braces in comments
-        var tokens = this.$tokenizer.getLineTokens(line, state).tokens;
-        if (tokens.length && tokens[tokens.length-1].type == "comment") {
-            return indent;
-        }
-
-        var match = line.match(/^.*\{\s*$/);
-        if (match) {
-            indent += tab;
-        }
-
         return indent;
     };
 
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/c9search_highlight_rules.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/c9search_highlight_rules.js
index c16b48c0..f5aae9b2 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/c9search_highlight_rules.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/c9search_highlight_rules.js
@@ -48,7 +48,7 @@ var C9SearchHighlightRules = function() {
     this.$rules = {
         "start" : [
             {
-                token : ["constant.numeric", "text", "text"],
+                token : ["c9searchresults.constant.numeric", "c9searchresults.text", "c9searchresults.text"],
                 regex : "(^\\s+[0-9]+)(:\\s*)(.+)"
             },
             {
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/coffee.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/coffee.js
index 4afc2896..9d265b67 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/coffee.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/coffee.js
@@ -41,7 +41,7 @@ define(function(require, exports, module) {
 var Tokenizer = require("../tokenizer").Tokenizer;
 var Rules = require("./coffee_highlight_rules").CoffeeHighlightRules;
 var Outdent = require("./matching_brace_outdent").MatchingBraceOutdent;
-var PythonFoldMode = require("./folding/pythonic").FoldMode;
+var PythonFoldMode = require("./folding/coffee").FoldMode;
 var Range = require("../range").Range;
 var TextMode = require("./text").Mode;
 var WorkerClient = require("../worker/worker_client").WorkerClient;
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/coffee_highlight_rules.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/coffee_highlight_rules.js
index 2772edf3..d3fe7884 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/coffee_highlight_rules.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/coffee_highlight_rules.js
@@ -153,7 +153,7 @@ define(function(require, exports, module) {
                     regex : "\\?|\\:|\\,|\\."
                 }, {
                     token : "keyword.operator",
-                    regex : "(?:[\\-=]>|[-+*/%<>&|^!?=]=|>>>=?|\\-\\-|\\+\\+|::|&&=|\\|\\|=|<<=|>>=|\\?\\.|\\.{2,3}|\\!)"
+                    regex : "(?:[\\-=]>|[-+*/%<>&|^!?=]=|>>>=?|\\-\\-|\\+\\+|::|&&=|\\|\\|=|<<=|>>=|\\?\\.|\\.{2,3}|[!*+-=><])"
                 }, {
                     token : "paren.lparen",
                     regex : "[({[]"
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/c9search.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/c9search.js
index dd501153..2c9828de 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/c9search.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/c9search.js
@@ -19,7 +19,7 @@
  * the Initial Developer. All Rights Reserved.
  *
  * Contributor(s):
- *      Fabian Jakobs <fabian AT ajax DOT org>
+ *      Garen J. Torikian <gjtorikian AT gmail DOT com>
  *
  * Alternatively, the contents of this file may be used under the terms of
  * either the GNU General Public License Version 2 or later (the "GPL"), or
@@ -48,46 +48,32 @@ oop.inherits(FoldMode, BaseFoldMode);
 
 (function() {
 
-    this.foldingStartMarker = /[a-zA-Z](:)\s*$/;
-    this.foldingStopMarker = /^(\s*)$/;
+    this.foldingStartMarker = /^(\w.*\:|Searching for.*)$/;
+    this.foldingStopMarker = /^(\s+|Found.*)$/;
     
     this.getFoldWidgetRange = function(session, foldStyle, row) {
         var line = session.getLine(row);
-        var match = line.match(this.foldingStartMarker);
-        if (match) {
-            var i = match.index;
+        var level1 = /^(Found.*|Searching for.*)$/;
+        var level2 = /^(\w.*\:|\s*)$/;
+        var re = level1.test(line) ? level1 : level2;
 
-            if (match[1])
-                return this.openingBracketBlock(session, match[1], row, i, false, true);
-
-            var range = session.getCommentFoldRange(row, i + match[0].length);
-            range.end.column -= 2;
-            return range;
-        }
-
-        if (foldStyle !== "markbeginend")
-            return;
-            
-        var match = line.match(this.foldingStopMarker);
-        if (match) {
-            var i = match.index + match[0].length;
-
-            if (match[2]) {
-                var range = session.getCommentFoldRange(row, i);
-                range.end.column -= 2;
-                return range;
+        if (this.foldingStartMarker.test(line)) {            
+            for (var i = row + 1, l = session.getLength(); i < l; i++) {
+                if (re.test(session.getLine(i)))
+                    break;
             }
 
-            var end = {row: row, column: i};
-            var start = session.$findOpeningBracket(match[1], end);
-            
-            if (!start)
-                return;
+            return new Range(row, line.length, i, 0);
+        }
 
-            start.column++;
-            end.column--;
+        if (this.foldingStopMarker.test(line)) {
+            for (var i = row - 1; i >= 0; i--) {
+                line = session.getLine(i);
+                if (re.test(line))
+                    break;
+            }
 
-            return  Range.fromPoints(start, end);
+            return new Range(i, line.length, row, 0);
         }
     };
     
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/coffee.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/coffee.js
new file mode 100644
index 00000000..b502afc4
--- /dev/null
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/coffee.js
@@ -0,0 +1,127 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Ajax.org Code Editor (ACE).
+ *
+ * The Initial Developer of the Original Code is
+ * Ajax.org B.V.
+ * Portions created by the Initial Developer are Copyright (C) 2010
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *      Fabian Jakobs <fabian AT ajax DOT org>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+define(function(require, exports, module) {
+"use strict";
+
+var oop = require("../../lib/oop");
+var BaseFoldMode = require("./fold_mode").FoldMode;
+var Range = require("../../range").Range;
+
+var FoldMode = exports.FoldMode = function() {};
+oop.inherits(FoldMode, BaseFoldMode);
+
+(function() {
+
+    this.getFoldWidgetRange = function(session, foldStyle, row) {
+        var range = this.indentationBlock(session, row);
+        if (range)
+            return range;
+
+        var re = /\S/;
+        var line = session.getLine(row);
+        var startLevel = line.search(re);
+        if (startLevel == -1 || line[startLevel] != "#")
+            return;
+
+        var startColumn = line.length;
+        var maxRow = session.getLength();
+        var startRow = row;
+        var endRow = row;
+
+        while (++row < maxRow) {
+            line = session.getLine(row);
+            var level = line.search(re);
+
+            if (level == -1)
+                continue;
+
+            if (line[level] != "#")
+                break;
+
+            endRow = row;
+        }
+
+        if (endRow > startRow) {
+            var endColumn = session.getLine(endRow).length;
+            return new Range(startRow, startColumn, endRow, endColumn);
+        }
+    };
+
+    // must return "" if there's no fold, to enable caching
+    this.getFoldWidget = function(session, foldStyle, row) {
+        var line = session.getLine(row);
+        var indent = line.search(/\S/);
+        var next = session.getLine(row + 1);
+        var prev = session.getLine(row - 1);
+        var prevIndent = prev.search(/\S/);
+        var nextIndent = next.search(/\S/);
+
+        if (indent == -1) {
+            session.foldWidgets[row - 1] = prevIndent!= -1 && prevIndent < nextIndent ? "start" : "";
+            return "";
+        }
+
+        // documentation comments
+        if (prevIndent == -1) {
+            if (indent == nextIndent && line[indent] == "#" && next[indent] == "#") {
+                session.foldWidgets[row - 1] = "";
+                session.foldWidgets[row + 1] = "";
+                return "start";
+            }
+        } else if (prevIndent == indent && line[indent] == "#" && prev[indent] == "#") {
+            if (session.getLine(row - 2).search(/\S/) == -1) {
+                session.foldWidgets[row - 1] = "start";
+                session.foldWidgets[row + 1] = "";
+                return ""
+            }
+        }
+
+        if (prevIndent!= -1 && prevIndent < indent)
+            session.foldWidgets[row - 1] = "start";
+        else
+            session.foldWidgets[row - 1] = "";
+
+        if (indent < nextIndent)
+            return "start";
+        else
+            return "";
+    };
+
+}).call(FoldMode.prototype);
+
+});
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/coffee_test.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/coffee_test.js
new file mode 100644
index 00000000..41c440a2
--- /dev/null
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/coffee_test.js
@@ -0,0 +1,108 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Ajax.org Code Editor (ACE).
+ *
+ * The Initial Developer of the Original Code is
+ * Ajax.org B.V.
+ * Portions created by the Initial Developer are Copyright (C) 2010
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *      Fabian Jakobs <fabian AT ajax DOT org>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+if (typeof process !== "undefined")
+    require("amd-loader");
+
+define(function(require, exports, module) {
+"use strict";
+
+var CoffeeMode = require("../coffee").Mode;
+var EditSession = require("../../edit_session").EditSession;
+var assert = require("../../test/assertions");
+function testFoldWidgets(array) {
+    var session = array.filter(function(_, i){return i % 2 == 1});
+    session = new EditSession(session);
+    var mode = new CoffeeMode();
+    session.setFoldStyle("markbeginend");
+    session.setMode(mode);
+
+    var widgets = array.filter(function(_, i){return i % 2 == 0});
+    widgets.forEach(function(w, i){
+        session.foldWidgets[i] = session.getFoldWidget(i);
+    })
+    widgets.forEach(function(w, i){
+        w = w.split(",");
+        var type = w[0] == ">" ? "start" : w[0] == "<" ? "end" : "";
+        assert.equal(session.foldWidgets[i], type);
+        if (!type)
+            return;
+        var range = session.getFoldWidgetRange(i);
+        if (!w[1]) {
+            assert.equal(range, null);
+            return;
+        }
+        assert.equal(range.start.row, i);
+        assert.equal(range.end.row - range.start.row, parseInt(w[1]));
+        testColumn(w[2], range.start);
+        testColumn(w[3], range.end);
+    });
+
+    function testColumn(w, pos) {
+        if (!w)
+            return;
+        if (w == "l")
+            w = session.getLine(pos.row).length;
+        else
+            w = parseInt(w);
+        assert.equal(pos.column, w);
+    }
+}
+module.exports = {
+    "test: coffee script indentation based folding": function() {
+       testFoldWidgets([
+            '>,1,l,l',         ' ## indented comment',
+            '',                '  # ',
+            '',                '',
+            '>,1,l,l',         ' # plain comment',
+            '',                ' # ',
+            '>,2',             ' function (x)=>',
+            '',                '  ',
+            '',                '  x++',
+            '',                '  ',
+            '',                '  ',
+            '>,2',             ' bar = ',
+            '',                '   foo: 1',
+            '',                '   baz: lighter'
+        ]);
+    }
+};
+
+});
+
+if (typeof module !== "undefined" && module === require.main)
+    require("asyncjs").test.testcase(module.exports).exec();
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/fold_mode.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/fold_mode.js
index 849526c7..25407569 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/fold_mode.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/fold_mode.js
@@ -58,25 +58,27 @@ var FoldMode = exports.FoldMode = function() {};
             return "end";
         return "";
     };
-    
+
     this.getFoldWidgetRange = function(session, foldStyle, row) {
         return null;
     };
 
     this.indentationBlock = function(session, row, column) {
-        var re = /^\s*/;
+        var re = /\S/;
+        var line = session.getLine(row);
+        var startLevel = line.search(re);
+        if (startLevel == -1)
+            return;
+
+        var startColumn = column || line.length;
+        var maxRow = session.getLength();
         var startRow = row;
         var endRow = row;
-        var line = session.getLine(row);
-        var startColumn = column || line.length;
-        var startLevel = line.match(re)[0].length;
-        var maxRow = session.getLength()
-        
-        while (++row < maxRow) {
-            line = session.getLine(row);
-            var level = line.match(re)[0].length;
 
-            if (level == line.length)
+        while (++row < maxRow) {
+            var level = session.getLine(row).search(re);
+
+            if (level == -1)
                 continue;
 
             if (level <= startLevel)
@@ -91,9 +93,9 @@ var FoldMode = exports.FoldMode = function() {};
         }
     };
 
-    this.openingBracketBlock = function(session, bracket, row, column, typeRe, allowBlankLine) {
+    this.openingBracketBlock = function(session, bracket, row, column, typeRe) {
         var start = {row: row, column: column + 1};
-        var end = session.$findClosingBracket(bracket, start, typeRe, allowBlankLine);
+        var end = session.$findClosingBracket(bracket, start, typeRe);
         if (!end)
             return;
 
@@ -101,7 +103,7 @@ var FoldMode = exports.FoldMode = function() {};
         if (fw == null)
             fw = this.getFoldWidget(session, end.row);
 
-        if (fw == "start") {
+        if (fw == "start" && end.row > start.row) {
             end.row --;
             end.column = session.getLine(end.row).length;
         }
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/pythonic.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/pythonic.js
index 90ab2aad..529cc797 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/pythonic.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/pythonic.js
@@ -42,7 +42,7 @@ var oop = require("../../lib/oop");
 var BaseFoldMode = require("./fold_mode").FoldMode;
 
 var FoldMode = exports.FoldMode = function(markers) {
-    this.foldingStartMarker = new RegExp("(?:([\\[{])|(" + markers + "))(?:\\s*)(?:#.*)?$");
+    this.foldingStartMarker = new RegExp("([\\[{])(?:\\s*)$|(" + markers + ")(?:\\s*)(?:#.*)?$");
 };
 oop.inherits(FoldMode, BaseFoldMode);
 
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/pythonic_test.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/pythonic_test.js
index 6cfb1f77..ca853715 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/pythonic_test.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/folding/pythonic_test.js
@@ -49,11 +49,12 @@ module.exports = {
 
     "test: bracket folding": function() {
         var session = new EditSession([
-            '[  #-',
+            '[ ',
             'stuff',
             ']',
             '[ ',
-            '{ '
+            '{ ',
+            '[  #-',
         ]);
 
         var mode = new PythonMode();
@@ -65,9 +66,11 @@ module.exports = {
         assert.equal(session.getFoldWidget(2), "");
         assert.equal(session.getFoldWidget(3), "start");
         assert.equal(session.getFoldWidget(4), "start");
+        assert.equal(session.getFoldWidget(5), "");
 
         assert.range(session.getFoldWidgetRange(0), 0, 1, 2, 0);
         assert.equal(session.getFoldWidgetRange(3), null);
+        assert.equal(session.getFoldWidgetRange(5), null);
     },
 
     "test: indentation folding": function() {
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/html.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/html.js
index 13062a41..70a178e1 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/html.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/html.js
@@ -44,13 +44,13 @@ var JavaScriptMode = require("./javascript").Mode;
 var CssMode = require("./css").Mode;
 var Tokenizer = require("../tokenizer").Tokenizer;
 var HtmlHighlightRules = require("./html_highlight_rules").HtmlHighlightRules;
-var XmlBehaviour = require("./behaviour/xml").XmlBehaviour;
+var HtmlBehaviour = require("./behaviour/html").HtmlBehaviour;
 var HtmlFoldMode = require("./folding/html").FoldMode;
 
 var Mode = function() {
     var highlighter = new HtmlHighlightRules();
     this.$tokenizer = new Tokenizer(highlighter.getRules());
-    this.$behaviour = new XmlBehaviour();
+    this.$behaviour = new HtmlBehaviour();
     
     this.$embeds = highlighter.getEmbeds();
     this.createModeDelegates({
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/html_highlight_rules.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/html_highlight_rules.js
index 24165fc2..4f51df77 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/html_highlight_rules.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/html_highlight_rules.js
@@ -44,6 +44,25 @@ var JavaScriptHighlightRules = require("./javascript_highlight_rules").JavaScrip
 var xmlUtil = require("./xml_util");
 var TextHighlightRules = require("./text_highlight_rules").TextHighlightRules;
 
+var tagMap = {
+    a           : 'anchor',
+    button 	    : 'form',
+    form        : 'form',
+    img         : 'image',
+    input       : 'form',
+    label       : 'form',
+    script      : 'script',
+    select      : 'form',
+    textarea    : 'form',
+    style       : 'style',
+    table       : 'table',
+    tbody       : 'table',
+    td          : 'table',
+    tfoot       : 'table',
+    th          : 'table',
+    tr          : 'table'
+};
+
 var HtmlHighlightRules = function() {
 
     // regexp must not have capturing parentheses
@@ -113,9 +132,9 @@ var HtmlHighlightRules = function() {
         } ]
     };
     
-    xmlUtil.tag(this.$rules, "tag", "start");
-    xmlUtil.tag(this.$rules, "style", "css-start");
-    xmlUtil.tag(this.$rules, "script", "js-start");
+    xmlUtil.tag(this.$rules, "tag", "start", tagMap);
+    xmlUtil.tag(this.$rules, "style", "css-start", tagMap);
+    xmlUtil.tag(this.$rules, "script", "js-start", tagMap);
     
     this.embedRules(JavaScriptHighlightRules, "js-", [{
         token: "comment",
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/javascript_highlight_rules.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/javascript_highlight_rules.js
index 63348303..ad3efba8 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/javascript_highlight_rules.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/javascript_highlight_rules.js
@@ -380,7 +380,7 @@ var JavaScriptHighlightRules = function() {
         "function_arguments": [
             {
                 token: "variable.parameter",
-                regex: identifierRe,
+                regex: identifierRe
             }, {
                 token: "punctuation.operator",
                 regex: "[, ]+",
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/luapage.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/luapage.js
index 03ee19d1..4a03444c 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/luapage.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/luapage.js
@@ -1,4 +1,4 @@
-define(function(require, exports, module) {
+define(function(require, exports, module) {
 "use strict";
 
 var oop = require("../lib/oop");
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/luapage_highlight_rules.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/luapage_highlight_rules.js
index d79581c3..6a79102f 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/luapage_highlight_rules.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/luapage_highlight_rules.js
@@ -1,4 +1,4 @@
-// LuaPage implements the LuaPage markup as described by the Kepler Project's CGILua
+// LuaPage implements the LuaPage markup as described by the Kepler Project's CGILua
 // documentation: http://keplerproject.github.com/cgilua/manual.html#templates
 define(function(require, exports, module) {
 "use strict";
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/xml_util.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/xml_util.js
index b58df44f..6aaaeb94 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/xml_util.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mode/xml_util.js
@@ -38,16 +38,6 @@
 define(function(require, exports, module) {
 "use strict";
 
-var lang = require("../lib/lang");
-
-var formTags = lang.arrayToMap(
-    ("button|form|input|label|select|textarea").split("|")
-);
-
-var tableTags = lang.arrayToMap(
-    ("table|tbody|td|tfoot|th|tr").split("|")
-);
-
 function string(state) {
     return [{
         token : "string",
@@ -81,7 +71,7 @@ function multiLineString(quote, state) {
     }];
 }
 
-exports.tag = function(states, name, nextState) {
+exports.tag = function(states, name, nextState, tagMap) {
     states[name] = [{
         token : "text",
         regex : "\\s+"
@@ -89,26 +79,10 @@ exports.tag = function(states, name, nextState) {
         //token : "meta.tag",
         
     token : function(value) {
-            if ( value==='a' ) {
-                return "meta.tag.anchor";
-            }
-            else if ( value==='img' ) {
-                return "meta.tag.image";
-            }
-            else if ( value==='script' ) {
-                return "meta.tag.script";
-            }
-            else if ( value==='style' ) {
-                return "meta.tag.style";
-            }
-            else if (formTags.hasOwnProperty(value.toLowerCase())) {
-                return "meta.tag.form";
-            }
-            else if (tableTags.hasOwnProperty(value.toLowerCase())) {
-                return "meta.tag.table";
-            }
-            else {
-                return "meta.tag";
+            if (tagMap && tagMap[value]) {
+                return "meta.tag.tag-name" + '.' + tagMap[value];
+            } else {
+                return "meta.tag.tag-name";
             }
         },        
         merge : true,
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mouse/default_gutter_handler.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mouse/default_gutter_handler.js
index fc9b012b..21c792a1 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mouse/default_gutter_handler.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mouse/default_gutter_handler.js
@@ -58,13 +58,10 @@ function GutterHandler(mouseHandler) {
         var row = e.getDocumentPosition().row;
         var selection = editor.session.selection;
 
-        if (e.getShiftKey()) {
+        if (e.getShiftKey())
             selection.selectTo(row, 0);
-        } else {
-            selection.moveCursorTo(row, 0);
-            selection.selectLine();
-            mouseHandler.$clickSelection = selection.getRange();
-        }
+        else
+            mouseHandler.$clickSelection = editor.selection.getLineRange(row);
 
         mouseHandler.captureMouse(e, "selectByLines");
         return e.preventDefault();
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mouse/default_handlers.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mouse/default_handlers.js
index 1b916801..7fabf75d 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mouse/default_handlers.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/mouse/default_handlers.js
@@ -65,7 +65,7 @@ function DefaultHandlers(mouseHandler) {
 
     mouseHandler.selectByLines = this.extendSelectionBy.bind(mouseHandler, "getLineRange");
     mouseHandler.selectByWords = this.extendSelectionBy.bind(mouseHandler, "getWordRange");
-    
+
     mouseHandler.$focusWaitTimout = 250;
 }
 
@@ -163,10 +163,12 @@ function DefaultHandlers(mouseHandler) {
 
             if (cmpStart == -1 && cmpEnd <= 0) {
                 anchor = this.$clickSelection.end;
-                cursor = range.start;
+                if (range.end.row != cursor.row || range.end.column != cursor.column)
+                    cursor = range.start;
             } else if (cmpEnd == 1 && cmpStart >= 0) {
                 anchor = this.$clickSelection.start;
-                cursor = range.end;
+                if (range.start.row != cursor.row || range.start.column != cursor.column)
+                    cursor = range.end;
             } else if (cmpStart == -1 && cmpEnd == 1) {
                 cursor = range.end;
                 anchor = range.start;
@@ -286,7 +288,7 @@ function DefaultHandlers(mouseHandler) {
             this.setState("select");
             return;
         }
-    
+
         this.$clickSelection = editor.selection.getWordRange(pos.row, pos.column);
         this.setState("selectByWords");
     };
@@ -296,10 +298,7 @@ function DefaultHandlers(mouseHandler) {
         var editor = this.editor;
 
         this.setState("selectByLines");
-
-        editor.moveCursorToPosition(pos);
-        editor.selection.selectLine();
-        this.$clickSelection = editor.getSelectionRange();
+        this.$clickSelection = editor.selection.getLineRange(pos.row);
     };
 
     this.onQuadClick = function(ev) {
@@ -345,7 +344,7 @@ function calcRangeOrientation(range, cursor) {
         var cmp = 2 * cursor.column - range.start.column - range.end.column;
     else
         var cmp = 2 * cursor.row - range.start.row - range.end.row;
-    
+
     if (cmp < 0)
         return {cursor: range.start, anchor: range.end};
     else
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/requirejs/text.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/requirejs/text.js
index cf7ef666..6d6f59ce 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/requirejs/text.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/requirejs/text.js
@@ -41,17 +41,17 @@
  
 (function() {
     
-var globalRequire = require;
+var globalRequire = typeof require != "undefined" && require;
  
 define(function (require, exports, module) {
     "use strict";
     
     exports.load = function (name, req, onLoad, config) {
-        if (req.isBrowser)
-            require("ace/lib/net").get(req.toUrl(name), onLoad);
+        //Using special require.nodeRequire, something added by r.js.
+        if (globalRequire && globalRequire.nodeRequire)
+            onLoad(('fs').readFileSync(req.toUrl(name), 'utf8'));
         else
-            //Using special require.nodeRequire, something added by r.js.
-            onLoad(globalRequire.nodeRequire('fs').readFileSync(req.toUrl(name), 'utf8'));
+            require("ace/lib/net").get(req.toUrl(name), onLoad);
     };
 });
 
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/test/all_browser.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/test/all_browser.js
index 934149e4..f1f68c81 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/test/all_browser.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/test/all_browser.js
@@ -42,6 +42,7 @@ var testNames = [
     "ace/mode/folding/html_test",
     "ace/mode/folding/pythonic_test",
     "ace/mode/folding/xml_test",
+    "ace/mode/folding/coffee_test",
     "ace/multi_select_test",
     "ace/range_test",
     "ace/range_list_test",
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/chrome.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/chrome.css
index 5997f57c..425071dc 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/chrome.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/chrome.css
@@ -7,7 +7,7 @@
 }
 
 .ace-chrome .ace_gutter {
-  background: #e8e8e8;
+  background: #ebebeb;
   color: #333;
   overflow : hidden;
 }
@@ -18,7 +18,6 @@
 }
 
 .ace-chrome .ace_text-layer {
-  cursor: text;
 }
 
 .ace-chrome .ace_cursor {
@@ -151,7 +150,10 @@ color:#FD971F;
   color: rgb(255, 0, 0)
 }
 
-.ace-chrome .ace_line .ace_string,
+.ace-chrome .ace_line .ace_string{
+  color: #1A1AA6;
+}
+
 .ace-chrome .ace_entity.ace_other.ace_attribute-name{
   color: #994409;
 }
\ No newline at end of file
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/clouds.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/clouds.css
index e490c386..1622cec2 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/clouds.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/clouds.css
@@ -8,7 +8,7 @@
 }
 
 .ace-clouds .ace_gutter {
-  background: #e8e8e8;
+  background: #ebebeb;
   color: #333;
 }
 
@@ -22,7 +22,6 @@
 }
 
 .ace-clouds .ace_text-layer {
-  cursor: text;
   color: #000000;
 }
 
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/clouds_midnight.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/clouds_midnight.css
index 69ed51db..b42113d7 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/clouds_midnight.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/clouds_midnight.css
@@ -8,13 +8,13 @@
 }
 
 .ace-clouds-midnight .ace_gutter {
-  background: #e8e8e8;
-  color: #333;
+  background: #232323;
+  color: #929292;
 }
 
 .ace-clouds-midnight .ace_print_margin {
   width: 1px;
-  background: #e8e8e8;
+  background: #232323;
 }
 
 .ace-clouds-midnight .ace_scroller {
@@ -22,7 +22,6 @@
 }
 
 .ace-clouds-midnight .ace_text-layer {
-  cursor: text;
   color: #929292;
 }
 
@@ -58,7 +57,7 @@
 }
 
 .ace-clouds-midnight .ace_gutter_active_line {
-  background-color : #dcdcdc;
+  background-color: rgba(215, 215, 215, 0.031);
 }
 
 .ace-clouds-midnight .ace_marker-layer .ace_selected_word {
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/cobalt.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/cobalt.css
index 5c9a7328..2a4aaed0 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/cobalt.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/cobalt.css
@@ -8,13 +8,13 @@
 }
 
 .ace-cobalt .ace_gutter {
-  background: #e8e8e8;
-  color: #333;
+  background: #011e3a;
+  color: #fff;
 }
 
 .ace-cobalt .ace_print_margin {
   width: 1px;
-  background: #e8e8e8;
+  background: #011e3a;
 }
 
 .ace-cobalt .ace_scroller {
@@ -22,7 +22,6 @@
 }
 
 .ace-cobalt .ace_text-layer {
-  cursor: text;
   color: #FFFFFF;
 }
 
@@ -58,7 +57,7 @@
 }
 
 .ace-cobalt .ace_gutter_active_line {
-  background-color : #dcdcdc;
+  background-color : rgba(0, 0, 0, 0.35);
 }
 
 .ace-cobalt .ace_marker-layer .ace_selected_word {
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/crimson_editor.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/crimson_editor.css
index e38910aa..1ed6783a 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/crimson_editor.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/crimson_editor.css
@@ -7,7 +7,7 @@
 }
 
 .ace-crimson-editor .ace_gutter {
-  background: #e8e8e8;
+  background: #ebebeb;
   color: #333;
   overflow : hidden;
 }
@@ -23,7 +23,6 @@
 }
 
 .ace-crimson-editor .ace_text-layer {
-  cursor: text;
   color: rgb(64, 64, 64);
 }
 
@@ -134,6 +133,10 @@
   background: rgb(232, 242, 254);
 }
 
+.ace-crimson-editor .ace_gutter_active_line {
+    background-color : #dcdcdc;
+}
+
 .ace-crimson-editor .ace_meta.ace_tag {
   color:rgb(28, 2, 255);
 }
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/dawn.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/dawn.css
index 85d48623..94cbd1c3 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/dawn.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/dawn.css
@@ -8,7 +8,7 @@
 }
 
 .ace-dawn .ace_gutter {
-  background: #e8e8e8;
+  background: #ebebeb;
   color: #333;
 }
 
@@ -22,7 +22,6 @@
 }
 
 .ace-dawn .ace_text-layer {
-  cursor: text;
   color: #080808;
 }
 
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/dreamweaver.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/dreamweaver.css
index b44699af..46ac475c 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/dreamweaver.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/dreamweaver.css
@@ -21,7 +21,6 @@
 }
 
 .ace-dreamweaver .ace_text-layer {
-  cursor: text;
 }
 
 .ace-dreamweaver .ace_cursor {
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/eclipse.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/eclipse.css
index c39a8470..f02283b2 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/eclipse.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/eclipse.css
@@ -7,14 +7,14 @@
 }
 
 .ace-eclipse .ace_gutter {
-  background: rgb(227, 227, 227);
+  background: #ebebeb;
   border-right: 1px solid rgb(159, 159, 159);
   color: rgb(136, 136, 136);
 }
 
 .ace-eclipse .ace_print_margin {
   width: 1px;
-  background: #b1b4ba;
+  background: #ebebeb;
 }
 
 .ace-eclipse .ace_fold {
@@ -22,7 +22,6 @@
 }
 
 .ace-eclipse .ace_text-layer {
-  cursor: text;
 }
 
 .ace-eclipse .ace_cursor {
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/github.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/github.css
index 5f1ab474..935990fa 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/github.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/github.css
@@ -13,6 +13,15 @@
   margin-bottom: 15px;
 }
 
+.ace-github .ace_gutter {
+  background: #e8e8e8;
+  color: #AAA;
+}
+
+.ace-github .ace_scroller {
+  background: #fff;
+}
+
 .ace-github .ace_keyword {
   font-weight: bold;
 }
@@ -29,6 +38,14 @@
   color: #099;
 }
 
+.ace-github .ace_constant.ace_buildin {
+  color: #0086B3;
+}
+
+.ace-github .ace_support.ace_function {
+  color: #0086B3;
+}
+
 .ace-github .ace_comment {
   color: #998;
   font-style: italic;
@@ -38,12 +55,11 @@
   color: #0086B3;
 }
 
-.ace-github .ace_paren.ace_lparen,
-.ace-github .ace_paren.ace_rparen {
+.ace-github .ace_paren {
   font-weight: bold;
 }
 
-.ace-github .ace_constant.ace_language.ace_boolean {
+.ace-github .ace_boolean {
   font-weight: bold;
 }
 
@@ -61,7 +77,6 @@
 }
 
 .ace-github .ace_text-layer {
-  cursor: text;
 }
 
 .ace-github .ace_cursor {
@@ -73,10 +88,46 @@
   border-bottom: 1px solid black;
 }
 
+.ace-github .ace_marker-layer .ace_active_line {
+  background: rgb(255, 255, 204);
+}
 .ace-github .ace_marker-layer .ace_selection {
   background: rgb(181, 213, 255);
 }
 .ace-github.multiselect .ace_selection.start {
   box-shadow: 0 0 3px 0px white;
   border-radius: 2px;
+}
+/* bold keywords cause cursor issues for some fonts */
+/* this disables bold style for editor and keeps for static highlighter */
+.ace-github.ace_editor .ace_line > span {
+    font-weight: normal !important;
+}
+
+.ace-github .ace_marker-layer .ace_step {
+  background: rgb(252, 255, 0);
+}
+
+.ace-github .ace_marker-layer .ace_stack {
+  background: rgb(164, 229, 101);
+}
+
+.ace-github .ace_marker-layer .ace_bracket {
+  margin: -1px 0 0 -1px;
+  border: 1px solid rgb(192, 192, 192);
+}
+
+.ace-github .ace_gutter_active_line{
+    background-color : rgba(0, 0, 0, 0.07);
+}
+
+.ace-github .ace_marker-layer .ace_selected_word {
+  background: rgb(250, 250, 255);
+  border: 1px solid rgb(200, 200, 250);
+
+}
+
+.ace-github .ace_print_margin {
+  width: 1px;
+  background: #e8e8e8;
 }
\ No newline at end of file
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/github.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/github.js
index b81731f3..a655724e 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/github.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/github.js
@@ -37,7 +37,7 @@
 
 define(function(require, exports, module) {
 
-exports.isDark = true;
+exports.isDark = false;
 exports.cssClass = "ace-github";
 exports.cssText = require('ace/requirejs/text!./github.css');
 
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/idle_fingers.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/idle_fingers.css
index 4ad6ff23..ba753f20 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/idle_fingers.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/idle_fingers.css
@@ -8,13 +8,13 @@
 }
 
 .ace-idle-fingers .ace_gutter {
-  background: #e8e8e8;
-  color: #333;
+  background: #3b3b3b;
+  color: #fff;
 }
 
 .ace-idle-fingers .ace_print_margin {
   width: 1px;
-  background: #e8e8e8;
+  background: #3b3b3b;
 }
 
 .ace-idle-fingers .ace_scroller {
@@ -22,7 +22,6 @@
 }
 
 .ace-idle-fingers .ace_text-layer {
-  cursor: text;
   color: #FFFFFF;
 }
 
@@ -58,7 +57,7 @@
 }
 
 .ace-idle-fingers .ace_gutter_active_line {
-  background-color : #dcdcdc;
+  background-color: #353637;
 }
 
 .ace-idle-fingers .ace_marker-layer .ace_selected_word {
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/kr_theme.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/kr_theme.css
index aa6c2e37..3e5f7332 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/kr_theme.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/kr_theme.css
@@ -8,13 +8,13 @@
 }
 
 .ace-kr-theme .ace_gutter {
-  background: #e8e8e8;
-  color: #333;
+  background: #1c1917;
+  color: #FCFFE0;
 }
 
 .ace-kr-theme .ace_print_margin {
   width: 1px;
-  background: #e8e8e8;
+  background: #1c1917;
 }
 
 .ace-kr-theme .ace_scroller {
@@ -22,7 +22,6 @@
 }
 
 .ace-kr-theme .ace_text-layer {
-  cursor: text;
   color: #FCFFE0;
 }
 
@@ -58,7 +57,7 @@
 }
 
 .ace-kr-theme .ace_gutter_active_line {
-  background-color : #dcdcdc;
+  background-color : #38403D;
 }
 
 .ace-kr-theme .ace_marker-layer .ace_selected_word {
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/merbivore.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/merbivore.css
index fe957fba..1048600a 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/merbivore.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/merbivore.css
@@ -8,8 +8,8 @@
 }
 
 .ace-merbivore .ace_gutter {
-  background: #e8e8e8;
-  color: #333;
+  background: #202020;
+  color: #E6E1DC;
 }
 
 .ace-merbivore .ace_print_margin {
@@ -22,7 +22,6 @@
 }
 
 .ace-merbivore .ace_text-layer {
-  cursor: text;
   color: #E6E1DC;
 }
 
@@ -58,7 +57,7 @@
 }
 
 .ace-merbivore .ace_gutter_active_line {
-  background-color : #dcdcdc;
+  background-color : #333435;
 }
 
 .ace-merbivore .ace_marker-layer .ace_selected_word {
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/merbivore_soft.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/merbivore_soft.css
index 4b7e91f2..8e1d24a5 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/merbivore_soft.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/merbivore_soft.css
@@ -8,13 +8,13 @@
 }
 
 .ace-merbivore-soft .ace_gutter {
-  background: #e8e8e8;
-  color: #333;
+  background: #262424;
+  color: #E6E1DC;
 }
 
 .ace-merbivore-soft .ace_print_margin {
   width: 1px;
-  background: #e8e8e8;
+  background: #262424;
 }
 
 .ace-merbivore-soft .ace_scroller {
@@ -22,7 +22,6 @@
 }
 
 .ace-merbivore-soft .ace_text-layer {
-  cursor: text;
   color: #E6E1DC;
 }
 
@@ -58,7 +57,7 @@
 }
 
 .ace-merbivore-soft .ace_gutter_active_line {
-  background-color : #dcdcdc;
+  background-color: #333435;
 }
 
 .ace-merbivore-soft .ace_marker-layer .ace_selected_word {
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/mono_industrial.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/mono_industrial.css
index 1e2d06ba..a8af1bcd 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/mono_industrial.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/mono_industrial.css
@@ -8,8 +8,8 @@
 }
 
 .ace-mono-industrial .ace_gutter {
-  background: #e8e8e8;
-  color: #333;
+  background: #1d2521;
+  color: #fff;
 }
 
 .ace-mono-industrial .ace_print_margin {
@@ -22,7 +22,6 @@
 }
 
 .ace-mono-industrial .ace_text-layer {
-  cursor: text;
   color: #FFFFFF;
 }
 
@@ -58,7 +57,7 @@
 }
 
 .ace-mono-industrial .ace_gutter_active_line {
-  background-color : #dcdcdc;
+  background-color: rgba(12, 13, 12, 0.25);
 }
 
 .ace-mono-industrial .ace_marker-layer .ace_selected_word {
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/monokai.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/monokai.css
index 5597ab01..cae92734 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/monokai.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/monokai.css
@@ -8,7 +8,7 @@
 }
 
 .ace-monokai .ace_gutter {
-  background: #292a24;
+  background: #2f3129;
   color: #f1f1f1;
 }
 
@@ -22,7 +22,6 @@
 }
 
 .ace-monokai .ace_text-layer {
-  cursor: text;
   color: #F8F8F2;
 }
 
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/pastel_on_dark.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/pastel_on_dark.css
index fc5155a4..e220569c 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/pastel_on_dark.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/pastel_on_dark.css
@@ -8,13 +8,13 @@
 }
 
 .ace-pastel-on-dark .ace_gutter {
-  background: #e8e8e8;
-  color: #333;
+  background: #353030;
+  color: #8F938F;
 }
 
 .ace-pastel-on-dark .ace_print_margin {
   width: 1px;
-  background: #e8e8e8;
+  background: #353030;
 }
 
 .ace-pastel-on-dark .ace_scroller {
@@ -22,7 +22,6 @@
 }
 
 .ace-pastel-on-dark .ace_text-layer {
-  cursor: text;
   color: #8F938F;
 }
 
@@ -58,7 +57,7 @@
 }
 
 .ace-pastel-on-dark .ace_gutter_active_line {
-  background-color : #dcdcdc;
+  background-color: rgba(255, 255, 255, 0.031);
 }
 
 .ace-pastel-on-dark .ace_marker-layer .ace_selected_word {
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/solarized_dark.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/solarized_dark.css
index 31eed2bd..df259e8b 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/solarized_dark.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/solarized_dark.css
@@ -8,7 +8,7 @@
 }
 
 .ace-solarized-dark .ace_gutter {
-  background: #09222b;
+  background: #01313f;
   color: #d0edf7;
 }
 
@@ -22,7 +22,6 @@
 }
 
 .ace-solarized-dark .ace_text-layer {
-  cursor: text;
   color: #93A1A1;
 }
 
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/solarized_light.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/solarized_light.css
index cc1c8699..1bd26c83 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/solarized_light.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/solarized_light.css
@@ -8,7 +8,7 @@
 }
 
 .ace-solarized-light .ace_gutter {
-  background: #e8e8e8;
+  background: #fbf1d3;
   color: #333;
 }
 
@@ -22,7 +22,6 @@
 }
 
 .ace-solarized-light .ace_text-layer {
-  cursor: text;
   color: #586E75;
 }
 
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/textmate.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/textmate.css
index dafb9fa1..c23c30f1 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/textmate.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/textmate.css
@@ -7,7 +7,7 @@
 }
 
 .ace-tm .ace_gutter {
-  background: #e8e8e8;
+  background: #f0f0f0;
   color: #333;
 }
 
@@ -21,7 +21,6 @@
 }
 
 .ace-tm .ace_text-layer {
-  cursor: text;
 }
 
 .ace-tm .ace_cursor {
@@ -147,7 +146,8 @@
 .ace-tm .ace_marker-layer .ace_active_line {
   background: rgba(0, 0, 0, 0.07);
 }
-.ace-tm .ace_gutter_active_line{
+
+.ace-tm .ace_gutter_active_line {
     background-color : #dcdcdc;
 }
 
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow.css
index 95c9c0d4..e65d3a5a 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow.css
@@ -8,13 +8,13 @@
 }
 
 .ace-tomorrow .ace_gutter {
-  background: #e8e8e8;
-  color: #333;
+  background: #f6f6f6;
+  color: #4D4D4C;
 }
 
 .ace-tomorrow .ace_print_margin {
   width: 1px;
-  background: #e8e8e8;
+  background: #f6f6f6;
 }
 
 .ace-tomorrow .ace_scroller {
@@ -22,7 +22,6 @@
 }
 
 .ace-tomorrow .ace_text-layer {
-  cursor: text;
   color: #4D4D4C;
 }
 
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow_night.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow_night.css
index 2e74d864..3ac694f5 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow_night.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow_night.css
@@ -8,13 +8,13 @@
 }
 
 .ace-tomorrow-night .ace_gutter {
-  background: #e8e8e8;
-  color: #333;
+  background: #25282c;
+  color: #C5C8C6;
 }
 
 .ace-tomorrow-night .ace_print_margin {
   width: 1px;
-  background: #e8e8e8;
+  background: #25282c;
 }
 
 .ace-tomorrow-night .ace_scroller {
@@ -22,7 +22,6 @@
 }
 
 .ace-tomorrow-night .ace_text-layer {
-  cursor: text;
   color: #C5C8C6;
 }
 
@@ -58,7 +57,7 @@
 }
 
 .ace-tomorrow-night .ace_gutter_active_line {
-  background-color : #dcdcdc;
+  background-color: #282A2E;
 }
 
 .ace-tomorrow-night .ace_marker-layer .ace_selected_word {
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow_night_blue.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow_night_blue.css
index 10c58165..1bcc86c3 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow_night_blue.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow_night_blue.css
@@ -8,13 +8,13 @@
 }
 
 .ace-tomorrow-night-blue .ace_gutter {
-  background: #022346;
+  background: #00204b;
   color: #7388b5;
 }
 
 .ace-tomorrow-night-blue .ace_print_margin {
   width: 1px;
-  background: #e8e8e8;
+  background: #00204b;
 }
 
 .ace-tomorrow-night-blue .ace_scroller {
@@ -22,7 +22,6 @@
 }
 
 .ace-tomorrow-night-blue .ace_text-layer {
-  cursor: text;
   color: #FFFFFF;
 }
 
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow_night_bright.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow_night_bright.css
index 21a928be..7cee6607 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow_night_bright.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow_night_bright.css
@@ -8,13 +8,13 @@
 }
 
 .ace-tomorrow-night-bright .ace_gutter {
-  background: #e8e8e8;
-  color: #333;
+  background: #1a1a1a;
+  color: #DEDEDE;
 }
 
 .ace-tomorrow-night-bright .ace_print_margin {
   width: 1px;
-  background: #e8e8e8;
+  background: #1a1a1a;
 }
 
 .ace-tomorrow-night-bright .ace_scroller {
@@ -22,7 +22,6 @@
 }
 
 .ace-tomorrow-night-bright .ace_text-layer {
-  cursor: text;
   color: #DEDEDE;
 }
 
@@ -58,7 +57,7 @@
 }
 
 .ace-tomorrow-night-bright .ace_gutter_active_line {
-  background-color : #dcdcdc;
+  background-color: #2A2A2A;
 }
 
 .ace-tomorrow-night-bright .ace_marker-layer .ace_selected_word {
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow_night_eighties.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow_night_eighties.css
index 93f2d3b6..ce5ef317 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow_night_eighties.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/tomorrow_night_eighties.css
@@ -8,13 +8,13 @@
 }
 
 .ace-tomorrow-night-eighties .ace_gutter {
-  background: #e8e8e8;
-  color: #333;
+  background: #272727;
+  color: #CCC;
 }
 
 .ace-tomorrow-night-eighties .ace_print_margin {
   width: 1px;
-  background: #e8e8e8;
+  background: #272727;
 }
 
 .ace-tomorrow-night-eighties .ace_scroller {
@@ -22,7 +22,6 @@
 }
 
 .ace-tomorrow-night-eighties .ace_text-layer {
-  cursor: text;
   color: #CCCCCC;
 }
 
@@ -58,7 +57,7 @@
 }
 
 .ace-tomorrow-night-eighties .ace_gutter_active_line {
-  background-color : #dcdcdc;
+  background-color: #393939;
 }
 
 .ace-tomorrow-night-eighties .ace_marker-layer .ace_selected_word {
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/twilight.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/twilight.css
index 6d81e4a5..28d1ffa6 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/twilight.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/twilight.css
@@ -8,13 +8,13 @@
 }
 
 .ace-twilight .ace_gutter {
-  background: #e8e8e8;
-  color: #333;
+  background: #232323;
+  color: #F8F8F8;
 }
 
 .ace-twilight .ace_print_margin {
   width: 1px;
-  background: #e8e8e8;
+  background: #232323;
 }
 
 .ace-twilight .ace_scroller {
@@ -22,7 +22,6 @@
 }
 
 .ace-twilight .ace_text-layer {
-  cursor: text;
   color: #F8F8F8;
 }
 
@@ -58,7 +57,7 @@
 }
 
 .ace-twilight .ace_gutter_active_line {
-  background-color : #dcdcdc;
+  background-color: rgba(255, 255, 255, 0.031);
 }
 
 .ace-twilight .ace_marker-layer .ace_selected_word {
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/vibrant_ink.css b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/vibrant_ink.css
index 81c54d71..3677a28e 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/vibrant_ink.css
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/theme/vibrant_ink.css
@@ -8,13 +8,13 @@
 }
 
 .ace-vibrant-ink .ace_gutter {
-  background: #e8e8e8;
-  color: #333;
+  background: #1a1a1a;
+  color: white;
 }
 
 .ace-vibrant-ink .ace_print_margin {
   width: 1px;
-  background: #e8e8e8;
+  background: #1a1a1a;
 }
 
 .ace-vibrant-ink .ace_scroller {
@@ -22,7 +22,6 @@
 }
 
 .ace-vibrant-ink .ace_text-layer {
-  cursor: text;
   color: #FFFFFF;
 }
 
@@ -58,7 +57,7 @@
 }
 
 .ace-vibrant-ink .ace_gutter_active_line {
-  background-color : #dcdcdc;
+  background-color: #333333;
 }
 
 .ace-vibrant-ink .ace_marker-layer .ace_selected_word {
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/virtual_renderer.js b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/virtual_renderer.js
index 18408b98..eb6a17c7 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/virtual_renderer.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/ace/lib/ace/virtual_renderer.js
@@ -263,8 +263,13 @@ var VirtualRenderer = function(container, theme) {
     *
     * Triggers a full update of all the layers, for all the rows.
     **/
-    this.updateFull = function() {
-        this.$loop.schedule(this.CHANGE_FULL);
+    this.updateFull = function(force) {
+        if (force){
+            this.$renderChanges(this.CHANGE_FULL, true);
+        }
+        else {
+            this.$loop.schedule(this.CHANGE_FULL);
+        }
     };
 
     /**
@@ -282,11 +287,19 @@ var VirtualRenderer = function(container, theme) {
     *
     * [Triggers a resize of the editor.]{: #VirtualRenderer.onResize}
     **/
-    this.onResize = function(force) {
+    this.onResize = function(force, gutterWidth, width, height) {
         var changes = this.CHANGE_SIZE;
         var size = this.$size;
 
-        var height = dom.getInnerHeight(this.container);
+        if (this.resizing > 2)
+            return;
+        else if (this.resizing > 1)
+            this.resizing++;
+        else
+            this.resizing = force ? 1 : 0;
+        
+        if (!height)
+            height = dom.getInnerHeight(this.container);
         if (force || size.height != height) {
             size.height = height;
 
@@ -300,20 +313,27 @@ var VirtualRenderer = function(container, theme) {
             }
         }
 
-        var width = dom.getInnerWidth(this.container);
-        if (force || size.width != width) {
+        if (!width)
+            width = dom.getInnerWidth(this.container);
+        if (force || this.resizing > 1 || size.width != width) {
             size.width = width;
 
             var gutterWidth = this.showGutter ? this.$gutter.offsetWidth : 0;
             this.scroller.style.left = gutterWidth + "px";
             size.scrollerWidth = Math.max(0, width - gutterWidth - this.scrollBar.getWidth());
-            this.scroller.style.width = size.scrollerWidth + "px";
+            this.scroller.style.right = this.scrollBar.getWidth() + "px";
 
             if (this.session.getUseWrapMode() && this.adjustWrapLimit() || force)
                 changes = changes | this.CHANGE_FULL;
         }
 
-        this.$loop.schedule(changes);
+        if (force)
+            this.$renderChanges(changes, true);
+        else
+            this.$loop.schedule(changes);
+        
+        if (force)
+            delete this.resizing;
     };
 
     /**
@@ -642,8 +662,8 @@ var VirtualRenderer = function(container, theme) {
         this.scrollBar.setScrollTop(this.scrollTop);
     };
 
-    this.$renderChanges = function(changes) {
-        if (!changes || !this.session || !this.container.offsetWidth)
+    this.$renderChanges = function(changes, force) {
+        if (!force && (!changes || !this.session || !this.container.offsetWidth))
             return;
 
         // text, scrolling and resize changes can cause the view port size to change
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/livepreview/livepreview.js b/lib/gollum/frontend/public/gollum/livepreview/js/livepreview/livepreview.js
index 848b5d2f..afaa047d 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/js/livepreview/livepreview.js
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/livepreview/livepreview.js
@@ -1,6 +1,16 @@
 require([ 'ace/ext/static_highlight', 'ace/theme/github', 'ace/editor', 'ace/virtual_renderer', 'ace/mode/markdown', 'ace/theme/twilight',
 'ace/mode/c_cpp', 'ace/mode/clojure', 'ace/mode/coffee', 'ace/mode/coldfusion', 'ace/mode/csharp', 'ace/mode/css', 'ace/mode/diff', 'ace/mode/golang', 'ace/mode/groovy', 'ace/mode/haxe', 'ace/mode/html', 'ace/mode/java', 'ace/mode/javascript', 'ace/mode/json', 'ace/mode/latex', 'ace/mode/less', 'ace/mode/liquid', 'ace/mode/lua', 'ace/mode/markdown', 'ace/mode/ocaml', 'ace/mode/perl', 'ace/mode/pgsql', 'ace/mode/php', 'ace/mode/powershell', 'ace/mode/python', 'ace/mode/ruby', 'ace/mode/scad', 'ace/mode/scala', 'ace/mode/scss', 'ace/mode/sh', 'ace/mode/sql', 'ace/mode/svg', 'ace/mode/textile', 'ace/mode/text', 'ace/mode/xml', 'ace/mode/xquery', 'ace/mode/yaml'
 ], function() {
+// Grab functions from emscripten
+var Pointer_stringify = Module['Pointer_stringify'];
+var _str_to_html = Module['_str_to_html'];
+var malloc = Module._malloc;
+var realloc = Module._realloc;
+var writeStringToMemory = Module.writeStringToMemory;
+var allocSize = 1024;
+var pointer = malloc( allocSize ) ;
+// end emscripten
+
 var Renderer = require( 'ace/virtual_renderer' ).VirtualRenderer;
 var Editor = require( 'ace/editor' ).Editor;
 var dom = require( 'ace/lib/dom' );
@@ -11,7 +21,6 @@ var doc = document;
 
 win.onbeforeunload = function() { return 'Leaving Live Preview will discard all edits!' };
 
-var converter = Markdown.getSanitizingConverter();
 var editor = new Editor( new Renderer( doc.getElementById( 'editor' ) ));//ace.edit( 'editor' );
 var editorSession = editor.getSession();
 $.editorSession = editorSession; // for testing
@@ -65,13 +74,8 @@ $.key = function( key ) {
 
 // True if &create=true
 var create = $.key( 'create' );
-// The path and name of the page being edited.
+// The name of the page being edited.
 var pageName = $.key( 'page' );
-var pathName = $.key( 'path' );
-
-if (pathName === 0) {
-  pathName = undefined;
-}
 
 defaultCommitMessage = function() {
   var msg = pageName + ' (markdown)';
@@ -93,19 +97,14 @@ $.save = function( commitMessage ) {
   var markdown = 'markdown';
   var txt = editorSession.getValue();
   var msg = defaultCommitMessage();
-
-  var newLocation = location.protocol + '//' + location.host;
-  if (pathName) {
-    newLocation += '/' + pathName;
-  }
-  newLocation += '/' + pageName;
+  var newLocation = location.protocol + '//' + location.host + '/' + pageName;
 
   // if &create=true then handle create instead of edit.
   if ( create ) {
     jQuery.ajax( {
       type: POST,
       url: '/create',
-      data:  { path: pathName, page: pageName, format: markdown, content: txt, message: commitMessage || msg },
+      data:  { page: pageName, format: markdown, content: txt, message: commitMessage || msg },
       success: function() {
         win.location = newLocation;
       }
@@ -114,7 +113,7 @@ $.save = function( commitMessage ) {
     jQuery.ajax( {
       type: POST,
       url: '/edit/' + pageName,
-      data:  { path: pathName, page: pageName, format: markdown, content: txt, message:  commitMessage || msg },
+      data:  { format: markdown, content: txt, message:  commitMessage || msg },
       success: function() {
           win.location = newLocation;
       }
@@ -227,12 +226,17 @@ function highlight( element, language ) {
 
   var newDiv = doc.createElement('div');
   newDiv.innerHTML = color.html;
-  element.parentNode.replaceChild( newDiv, element );
+  element.parentNode.parentNode.replaceChild( newDiv, element.parentNode );
 }
 
 var makePreviewHtml = function () {
   var text = editorSession.getValue();
 
+  if ( text == undefined || text == '' ) {
+    previewSet( '' );
+    return;
+  }
+
   if (text && text == oldInputText) {
     return; // Input text hasn't changed.
   }
@@ -242,7 +246,18 @@ var makePreviewHtml = function () {
 
   var prevTime = new Date().getTime();
 
-  text = converter.makeHtml( text );
+  try {
+    var textLength = text.length;
+    while ( textLength > allocSize ) {
+      allocSize <<= 1; // double
+      pointer = realloc( pointer, allocSize );
+    }
+
+    writeStringToMemory( text, pointer );
+    text = Pointer_stringify( _str_to_html( pointer ) );
+  } catch ( e ) {
+    console.log( e );
+  }
 
   // Calculate the processing time of the HTML creation.
   // It's used as the delay time in the event listener.
@@ -252,7 +267,8 @@ var makePreviewHtml = function () {
   // Update the text using feature detection to support IE.
   // preview.innerHTML = text; // this doesn't work on IE.
   previewSet( text );
-  MathJax.Hub.Typeset( content );
+  // MathJax is loaded asynchronously.
+  if (typeof MathJax != 'undefined') { MathJax.Hub.Typeset( content ); }
 
   // highlight code blocks.
   var codeElements = preview.getElementsByTagName( 'pre' );
@@ -263,50 +279,38 @@ var makePreviewHtml = function () {
     for ( var idx = 0; idx < codeElementsLength; idx++ ) {
       // highlight removes an element so 0 is always the correct index.
       // Skipped tags are not removed so they must be added.
-      var element = codeElements[ 0 + skipped ];
+      var element = codeElements[ 0 + skipped ].firstChild;
+      if ( element == undefined) {
+        return;
+      }
       var codeHTML = element.innerHTML;
-
-       // Only use pre tags marked containing code.
-      if ( codeHTML[ 0 ] !== '`' )
-       continue;
-
+      if ( codeHTML == undefined) {
+        return;
+      }
       var txt = codeHTML.split( /\b/ );
       // the syntax for code highlighting means all code, even one line, contains newlines.
       if ( txt.length > 1 && codeHTML.match( /\n/ ) ) {
-        var declaredLanguage = txt[ 1 ];
+        var declaredLanguage = element.className.toLowerCase();
         var aceMode = declaredLanguage;
 
         // GitHub supports 'c', 'c++', 'cpp'
         // which must trigger the 'c_cpp' mode in Ace.
-        if ( declaredLanguage === 'cpp' ) {
+        if ( declaredLanguage === 'c'   ||
+             declaredLanguage === 'c++' ||
+             declaredLanguage === 'cpp' ) {
           aceMode = 'c_cpp';
         }
 
-        // '`c++'.split( /\b/ )
-        // ["`", "c", "++"]
-        if ( declaredLanguage === 'c' ) {
-          aceMode = 'c_cpp';
-          if ( txt.length > 2 && txt[ 2 ].substring( 0, 2 ) === '++' ) {
-            declaredLanguage += '++';
-          }
-        }
-
-        // txt[0] must be '`'
-        // txt[0] = '`'; txt[1] = 'ruby'
-        if ( txt[ 0 ] !== '`' || $.inArray( declaredLanguage, languages ) === -1 ) {
+        if ( $.inArray( declaredLanguage, languages ) === -1 ) {
           // Unsupported language.
           skipped++;
-          element.innerHTML = codeHTML.substring( 1 ).trim();
           continue;
         }
-        // length + 1 for the marker character.
-        element.innerHTML = codeHTML.substring( declaredLanguage.length + 1 ).trim();
         // highlight: element
         highlight( element, aceMode );
       } else {
         // Highlighting is not for `code` inline syntax. For example `puts "string"`.
         skipped++;
-        element.innerHTML = codeHTML.substring( 1 ).trim();
       }
     }
   }
@@ -335,7 +339,7 @@ var applyTimeout = function () {
        editorSession.setValue( data );
     }
   });
-
+ 
   $( '#save' ).click( function() {
     $.save();
   });
@@ -388,10 +392,10 @@ var applyTimeout = function () {
     var widthFourth = widthHalf / 2;
     var height = $( win ).height();
     var heightHalf = height / 2;
-
+ 
     // height minus 50 so the end of document text doesn't flow off the page.
     var editorContainerStyle = 'width:' + widthHalf + 'px;' +
-      'height:' + (height - 50) + 'px;' +
+      'height:' + (height - 50) + 'px;' + 
       'left:' + (leftRight === false ? widthHalf + 'px;' : '0px;') +
       'top:' + '40px;'; // use 40px for tool menu
     cssSet( editorContainer, editorContainerStyle );
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/pagedown/Markdown.Converter.js b/lib/gollum/frontend/public/gollum/livepreview/js/pagedown/Markdown.Converter.js
deleted file mode 100644
index 3bfc6a28..00000000
--- a/lib/gollum/frontend/public/gollum/livepreview/js/pagedown/Markdown.Converter.js
+++ /dev/null
@@ -1,1355 +0,0 @@
-var Markdown;
-
-if (typeof exports === "object" && typeof require === "function") // we're in a CommonJS (e.g. Node.js) module
-    Markdown = exports;
-else
-    Markdown = {};
-    
-// The following text is included for historical reasons, but should
-// be taken with a pinch of salt; it's not all true anymore.
-
-//
-// 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.
-//
-
-
-//
-// Usage:
-//
-//   var text = "Markdown *rocks*.";
-//
-//   var converter = new Markdown.Converter();
-//   var html = converter.makeHtml(text);
-//
-//   alert(html);
-//
-// Note: move the sample code to the bottom of this
-// file before uncommenting it.
-//
-
-(function () {
-
-    function identity(x) { return x; }
-    function returnFalse(x) { return false; }
-
-    function HookCollection() { }
-
-    HookCollection.prototype = {
-
-        chain: function (hookname, func) {
-            var original = this[hookname];
-            if (!original)
-                throw new Error("unknown hook " + hookname);
-
-            if (original === identity)
-                this[hookname] = func;
-            else
-                this[hookname] = function (x) { return func(original(x)); }
-        },
-        set: function (hookname, func) {
-            if (!this[hookname])
-                throw new Error("unknown hook " + hookname);
-            this[hookname] = func;
-        },
-        addNoop: function (hookname) {
-            this[hookname] = identity;
-        },
-        addFalse: function (hookname) {
-            this[hookname] = returnFalse;
-        }
-    };
-
-    Markdown.HookCollection = HookCollection;
-
-    // g_urls and g_titles allow arbitrary user-entered strings as keys. This
-    // caused an exception (and hence stopped the rendering) when the user entered
-    // e.g. [push] or [__proto__]. Adding a prefix to the actual key prevents this
-    // (since no builtin property starts with "s_"). See
-    // http://meta.stackoverflow.com/questions/64655/strange-wmd-bug
-    // (granted, switching from Array() to Object() alone would have left only __proto__
-    // to be a problem)
-    function SaveHash() { }
-    SaveHash.prototype = {
-        set: function (key, value) {
-            this["s_" + key] = value;
-        },
-        get: function (key) {
-            return this["s_" + key];
-        }
-    };
-
-    Markdown.Converter = function () {
-        var pluginHooks = this.hooks = new HookCollection();
-        pluginHooks.addNoop("plainLinkText");  // given a URL that was encountered by itself (without markup), should return the link text that's to be given to this link
-        pluginHooks.addNoop("preConversion");  // called with the orignal text as given to makeHtml. The result of this plugin hook is the actual markdown source that will be cooked
-        pluginHooks.addNoop("postConversion"); // called with the final cooked HTML code. The result of this plugin hook is the actual output of makeHtml
-
-        //
-        // Private state of the converter instance:
-        //
-
-        // 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;
-
-        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 <a>
-            // and <img> tags get encoded.
-            //
-
-            // This will only happen if makeHtml on the same converter instance is called from a plugin hook.
-            // Don't do that.
-            if (g_urls)
-                throw new Error("Recursive call to converter.makeHtml");
-        
-            // Create the private state objects.
-            g_urls = new SaveHash();
-            g_titles = new SaveHash();
-            g_html_blocks = [];
-            g_list_level = 0;
-
-            text = pluginHooks.preConversion(text);
-
-            // 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);
-
-            // Process gollum style code highlighting.
-            text = _DoCodeSpansGollum(text);
-
-            text = _RunBlockGamut(text);
-
-            text = _UnescapeSpecialChars(text);
-
-            // attacklab: Restore dollar signs
-            text = text.replace(/~D/g, "$$");
-
-            // attacklab: Restore tildes
-            text = text.replace(/~T/g, "~");
-
-            text = pluginHooks.postConversion(text);
-
-            g_html_blocks = g_titles = g_urls = null;
-
-            return text;
-        };
-
-        function _StripLinkDefinitions(text) {
-            //
-            // Strips link definitions from text, stores the URLs and titles in
-            // hash references.
-            //
-
-            // Link defs are in the form: ^[id]: url "optional title"
-
-            /*
-            text = text.replace(/
-                ^[ ]{0,3}\[(.+)\]:  // id = $1  attacklab: g_tab_width - 1
-                [ \t]*
-                \n?                 // maybe *one* newline
-                [ \t]*
-                <?(\S+?)>?          // url = $2
-                (?=\s|$)            // lookahead for whitespace instead of the lookbehind removed below
-                [ \t]*
-                \n?                 // maybe one newline
-                [ \t]*
-                (                   // (potential) title = $3
-                    (\n*)           // any lines skipped = $4 attacklab: lookbehind removed
-                    [ \t]+
-                    ["(]
-                    (.+?)           // title = $5
-                    [")]
-                    [ \t]*
-                )?                  // title is optional
-                (?:\n+|$)
-            /gm, function(){...});
-            */
-
-            text = text.replace(/^[ ]{0,3}\[(.+)\]:[ \t]*\n?[ \t]*<?(\S+?)>?(?=\s|$)[ \t]*\n?[ \t]*((\n*)["(](.+?)[")][ \t]*)?(?:\n+)/gm,
-                function (wholeMatch, m1, m2, m3, m4, m5) {
-                    m1 = m1.toLowerCase();
-                    g_urls.set(m1, _EncodeAmpsAndAngles(m2));  // Link IDs are case-insensitive
-                    if (m4) {
-                        // Oops, found blank lines, so it's not a title.
-                        // Put back the parenthetical statement we stole.
-                        return m3;
-                    } else if (m5) {
-                        g_titles.set(m1, m5.replace(/"/g, "&quot;"));
-                    }
-
-                    // Completely remove the definition from the text
-                    return "";
-                }
-            );
-
-            return text;
-        }
-
-        function _HashHTMLBlocks(text) {
-
-            // Hashify HTML blocks:
-            // We only want to do this for block-level HTML tags, such as headers,
-            // lists, and tables. That's because we still want to wrap <p>s around
-            // "paragraphs" that are wrapped in non-block-level tags, such as anchors,
-            // phrase emphasis, and spans. The list of tags we're looking for is
-            // hard-coded:
-            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.:
-            //   <div>
-            //     <div>
-            //     tags for inner block must be indented.
-            //     </div>
-            //   </div>
-            //
-            // The outermost tags must start at the left margin for this to match, and
-            // the inner nested divs must be indented.
-            // We need to do this before the next, more liberal match, because the next
-            // match will start at the first `<div>` and stop at the first `</div>`.
-
-            // attacklab: This regex can be expensive when it fails.
-
-            /*
-            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
-                    </\2>               // 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<tag>` to `</tag>\n`
-            //
-
-            /*
-            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
-                    .*</\2>             // 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 <hr />. It was easier to make a special case than
-            // to make the other regex more complicated.  
-
-            /*
-            text = text.replace(/
-                \n                  // Starting after a blank line
-                [ ]{0,3}
-                (                   // save in $1
-                    (<(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(/
-                \n\n                                            // Starting after a blank line
-                [ ]{0,3}                                        // attacklab: g_tab_width - 1
-                (                                               // save in $1
-                    <!
-                    (--(?:|(?:[^>-]|-[^>])(?:[^-]|-[^-])*)--)   // see http://www.w3.org/TR/html-markup/syntax.html#comments and http://meta.stackoverflow.com/q/95256
-                    >
-                    [ \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
-                    (?:
-                        <([?%])     // $2
-                        [^\r]*?
-                        \2>
-                    )
-                    [ \t]*
-                    (?=\n{2,})      // followed by a blank line
-                )
-            /g,hashElement);
-            */
-            text = text.replace(/(?:\n\n)([ ]{0,3}(?:<([?%])[^\r]*?\2>)[ \t]*(?=\n{2,}))/g, hashElement);
-
-            return text;
-        }
-
-        function hashElement(wholeMatch, m1) {
-            var blockText = m1;
-
-            // Undo double lines
-            blockText = blockText.replace(/^\n+/, "");
-
-            // strip trailing blank lines
-            blockText = blockText.replace(/\n+$/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;
-        }
-
-        function _RunBlockGamut(text, doNotUnhash) {
-            //
-            // These are all the transformations that form block-level
-            // tags like paragraphs, headers, and list items.
-            //
-            text = _DoHeaders(text);
-
-            // Do Horizontal Rules:
-            var replacement = "<hr />\n";
-            text = text.replace(/^[ ]{0,2}([ ]?\*[ ]?){3,}[ \t]*$/gm, replacement);
-            text = text.replace(/^[ ]{0,2}([ ]?-[ ]?){3,}[ \t]*$/gm, replacement);
-            text = text.replace(/^[ ]{0,2}([ ]?_[ ]?){3,}[ \t]*$/gm, replacement);
-
-            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
-            // <p> tags around block-level tags.
-            text = _HashHTMLBlocks(text);
-            text = _FormParagraphs(text, doNotUnhash);
-
-            return text;
-        }
-
-        function _RunSpanGamut(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 `<http://example.com/>`
-            // Must come after _DoAnchors(), because you can use < and >
-            // delimiters in inline links like [this](<url>).
-            text = _DoAutoLinks(text);
-            
-            text = text.replace(/~P/g, "://"); // put in place to prevent autolinking; reset now
-            
-            text = _EncodeAmpsAndAngles(text);
-            text = _DoItalicsAndBold(text);
-
-            // Do hard breaks:
-            text = text.replace(/  +\n/g, " <br>\n");
-
-            return text;
-        }
-
-        function _EscapeSpecialCharsWithinTagAttributes(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.
-
-            // SE: changed the comment part of the regex
-
-            var regex = /(<[a-z\/!$]("[^"]*"|'[^']*'|[^'">])*>|<!(--(?:|(?:[^>-]|-[^>])(?:[^-]|-[^-])*)--)>)/gi;
-
-            text = text.replace(regex, function (wholeMatch) {
-                var tag = wholeMatch.replace(/(.)<\/?code>(?=.)/g, "$1`");
-                tag = escapeCharacters(tag, wholeMatch.charAt(1) == "!" ? "\\`*_/" : "\\`*_"); // also escape slashes in comments to prevent autolinking there -- http://meta.stackoverflow.com/questions/95987
-                return tag;
-            });
-
-            return text;
-        }
-
-        function _DoAnchors(text) {
-            //
-            // Turn Markdown link shortcuts into XHTML <a> 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, writeAnchorTag);
-            */
-            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
-                        (?:
-                            \([^)]*\)       // allow one level of (correctly nested) parens (think MSDN)
-                            |
-                            [^()\s]
-                        )*?
-                    )>?                
-                    [ \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]*()<?((?:\([^)]*\)|[^()\s])*?)>?[ \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;
-        }
-
-        function writeAnchorTag(wholeMatch, m1, m2, m3, m4, m5, m6, m7) {
-            if (m7 == undefined) m7 = "";
-            var whole_match = m1;
-            var link_text = m2.replace(/:\/\//g, "~P"); // to prevent auto-linking withing the link. will be converted back after the auto-linker runs
-            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.get(link_id) != undefined) {
-                    url = g_urls.get(link_id);
-                    if (g_titles.get(link_id) != undefined) {
-                        title = g_titles.get(link_id);
-                    }
-                }
-                else {
-                    if (whole_match.search(/\(\s*\)$/m) > -1) {
-                        // Special case for explicit empty url
-                        url = "";
-                    } else {
-                        return whole_match;
-                    }
-                }
-            }
-            url = encodeProblemUrlChars(url);
-            url = escapeCharacters(url, "*_");
-            var result = "<a href=\"" + url + "\"";
-
-            if (title != "") {
-                title = attributeEncode(title);
-                title = escapeCharacters(title, "*_");
-                result += " title=\"" + title + "\"";
-            }
-
-            result += ">" + link_text + "</a>";
-
-            return result;
-        }
-
-        function _DoImages(text) {
-            //
-            // Turn Markdown image shortcuts into <img> 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
-                    \(              // literal paren
-                    [ \t]*
-                    ()              // no id, so leave $3 empty
-                    <?(\S+?)>?      // src url = $4
-                    [ \t]*
-                    (               // $5
-                        (['"])      // quote char = $6
-                        (.*?)       // title = $7
-                        \6          // matching quote
-                        [ \t]*
-                    )?              // title is optional
-                    \)
-                )
-            /g, writeImageTag);
-            */
-            text = text.replace(/(!\[(.*?)\]\s?\([ \t]*()<?(\S+?)>?[ \t]*((['"])(.*?)\6[ \t]*)?\))/g, writeImageTag);
-
-            return text;
-        }
-        
-        function attributeEncode(text) {
-            // unconditionally replace angle brackets here -- what ends up in an attribute (e.g. alt or title)
-            // never makes sense to have verbatim HTML in it (and the sanitizer would totally break it)
-            return text.replace(/>/g, "&gt;").replace(/</g, "&lt;").replace(/"/g, "&quot;");
-        }
-
-        function writeImageTag(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.get(link_id) != undefined) {
-                    url = g_urls.get(link_id);
-                    if (g_titles.get(link_id) != undefined) {
-                        title = g_titles.get(link_id);
-                    }
-                }
-                else {
-                    return whole_match;
-                }
-            }
-            
-            alt_text = escapeCharacters(attributeEncode(alt_text), "*_[]()");
-            url = escapeCharacters(url, "*_");
-            var result = "<img src=\"" + url + "\" alt=\"" + alt_text + "\"";
-
-            // attacklab: Markdown.pl adds empty title attributes to images.
-            // Replicate this bug.
-
-            //if (title != "") {
-            title = attributeEncode(title);
-            title = escapeCharacters(title, "*_");
-            result += " title=\"" + title + "\"";
-            //}
-
-            result += " />";
-
-            return result;
-        }
-
-        function _DoHeaders(text) {
-
-            // Setext-style headers:
-            //  Header 1
-            //  ========
-            //  
-            //  Header 2
-            //  --------
-            //
-            text = text.replace(/^(.+)[ \t]*\n=+[ \t]*\n+/gm,
-                function (wholeMatch, m1) { return "<h1>" + _RunSpanGamut(m1) + "</h1>\n\n"; }
-            );
-
-            text = text.replace(/^(.+)[ \t]*\n-+[ \t]*\n+/gm,
-                function (matchFound, m1) { return "<h2>" + _RunSpanGamut(m1) + "</h2>\n\n"; }
-            );
-
-            // 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 "<h" + h_level + ">" + _RunSpanGamut(m2) + "</h" + h_level + ">\n\n";
-                }
-            );
-
-            return text;
-        }
-
-        function _DoLists(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";
-
-                    var result = _ProcessListItems(list, list_type);
-
-                    // Trim any trailing whitespace, to put the closing `</$list_type>`
-                    // up on the preceding line, to get it past the current stupid
-                    // HTML block parser. This is a hack to work around the terrible
-                    // hack that is the HTML block parser.
-                    result = result.replace(/\s+$/, "");
-                    result = "<" + list_type + ">" + result + "</" + list_type + ">\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";
-                    var result = _ProcessListItems(list, list_type);
-                    result = runup + "<" + list_type + ">\n" + result + "</" + list_type + ">\n";
-                    return result;
-                });
-            }
-
-            // attacklab: strip sentinel
-            text = text.replace(/~0/, "");
-
-            return text;
-        }
-
-        var _listItemMarkers = { ol: "\\d+[.]", ul: "[*+-]" };
-
-        function _ProcessListItems(list_str, list_type) {
-            //
-            //  Process the contents of a single ordered or unordered list, splitting it
-            //  into individual list items.
-            //
-            //  list_type is either "ul" or "ol".
-
-            // 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";
-
-            // In the original attacklab showdown, list_type was not given to this function, and anything
-            // that matched /[*+-]|\d+[.]/ would just create the next <li>, causing this mismatch:
-            //
-            //  Markdown          rendered by WMD        rendered by MarkdownSharp
-            //  ------------------------------------------------------------------
-            //  1. first          1. first               1. first
-            //  2. second         2. second              2. second
-            //  - third           3. third                   * third
-            //
-            // We changed this to behave identical to MarkdownSharp. This is the constructed RegEx,
-            // with {MARKER} being one of \d+[.] or [*+-], depending on list_type:
-        
-            /*
-            list_str = list_str.replace(/
-                (^[ \t]*)                       // leading whitespace = $1
-                ({MARKER}) [ \t]+               // list marker = $2
-                ([^\r]+?                        // list item text   = $3
-                    (\n+)
-                )
-                (?=
-                    (~0 | \2 ({MARKER}) [ \t]+)
-                )
-            /gm, function(){...});
-            */
-
-            var marker = _listItemMarkers[list_type];
-            var re = new RegExp("(^[ \\t]*)(" + marker + ")[ \\t]+([^\\r]+?(\\n+))(?=(~0|\\1(" + marker + ")[ \\t]+))", "gm");
-            var last_item_had_a_double_newline = false;
-            list_str = list_str.replace(re,
-                function (wholeMatch, m1, m2, m3) {
-                    var item = m3;
-                    var leading_space = m1;
-                    var ends_with_double_newline = /\n\n$/.test(item);
-                    var contains_double_newline = ends_with_double_newline || item.search(/\n{2,}/) > -1;
-
-                    if (contains_double_newline || last_item_had_a_double_newline) {
-                        item = _RunBlockGamut(_Outdent(item), /* doNotUnhash = */true);
-                    }
-                    else {
-                        // Recursion for sub-lists:
-                        item = _DoLists(_Outdent(item));
-                        item = item.replace(/\n$/, ""); // chomp(item)
-                        item = _RunSpanGamut(item);
-                    }
-                    last_item_had_a_double_newline = ends_with_double_newline;
-                    return "<li>" + item + "</li>\n";
-                }
-            );
-
-            // attacklab: strip sentinel
-            list_str = list_str.replace(/~0/g, "");
-
-            g_list_level--;
-            return list_str;
-        }
-
-        function _DoCodeBlocks(text) {
-            //
-            //  Process Markdown `<pre><code>` blocks.
-            //  
-
-            /*
-            text = text.replace(/
-                (?:\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 = "<pre><code>" + codeblock + "\n</code></pre>";
-
-                    return "\n\n" + codeblock + "\n\n" + nextChar;
-                }
-            );
-
-            // attacklab: strip sentinel
-            text = text.replace(/~0/, "");
-
-            return text;
-        }
-
-        function hashBlock(text) {
-            text = text.replace(/(^\n+|\n+$)/g, "");
-            return "\n\n~K" + (g_html_blocks.push(text) - 1) + "K\n\n";
-        }
-
-        function _DoCodeSpans(text) {
-            //
-            // * Backtick quotes are used for <code></code> spans.
-            // 
-            // * You can use multiple backticks as the delimiters if you want to
-            //   include literal backticks in the code span. So, this input:
-            //     
-            //      Just type ``foo `bar` baz`` at the prompt.
-            //     
-            //   Will translate to:
-            //     
-            //      <p>Just type <code>foo `bar` baz</code> at the prompt.</p>
-            //     
-            //   There's no arbitrary limit to the number of backticks you
-            //   can use as delimters. If you need three consecutive backticks
-            //   in your code, use four for delimiters, etc.
-            //
-            // * You can use spaces to get literal backticks at the edges:
-            //     
-            //      ... type `` `bar` `` ...
-            //     
-            //   Turns to:
-            //     
-            //      ... type <code>`bar`</code> ...
-            //
-
-            /*
-            text = 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);
-                    c = c.replace(/:\/\//g, "~P"); // to prevent auto-linking. Not necessary in code *blocks*, but in code spans. Will be converted back after the auto-linker runs.
-                    return m1 + "<code>" + c + "</code>";
-                }
-            );
-
-            return text;
-        }
-
-        function _DoCodeSpansGollum(text) {
-            //
-            // Gollum wraps code in one pre. Use ` to mark code pre.
-            // Gollum requires exactly three starting and ending `.
-            //
-            text = text.replace(/(^|[^\\])(`{3})([^\r]*?[^`])\2(?!`)/gm,
-                function (wholeMatch, m1, m2, m3, m4) {
-                    var c = m3;
-                    c = c.replace(/^([ \t]*)/g, ""); // leading whitespace
-                    c = c.replace(/[ \t]*$/g, ""); // trailing whitespace
-                    c = _EncodeCode(c);
-                    // Set to use 'm' multiline option.
-                    c = c.replace(/:\/\//gm, "~P"); // to prevent auto-linking. Not necessary in code *blocks*, but in code spans. Will be converted back after the auto-linker runs.
-                    return m1 + hashBlock("<pre>`" + c + "</pre>");
-                }
-            );
-
-            return text;
-        }
-
-        function _EncodeCode(text) {
-            //
-            // Encode/escape certain characters inside Markdown code runs.
-            // The point is that in code, these characters are literals,
-            // and lose their special Markdown meanings.
-            //
-            // Encode all ampersands; HTML entities are not
-            // entities within a Markdown code span.
-            text = text.replace(/&/g, "&amp;");
-
-            // Do the angle bracket song and dance:
-            text = text.replace(/</g, "&lt;");
-            text = text.replace(/>/g, "&gt;");
-
-            // Now, escape characters that are magic in Markdown:
-            text = escapeCharacters(text, "\*_{}[]\\", false);
-
-            // jj the line above breaks this:
-            //---
-
-            //* Item
-
-            //   1. Subitem
-
-            //            special char: *
-            //---
-
-            return text;
-        }
-
-        function _DoItalicsAndBold(text) {
-
-            // <strong> must go first:
-            text = text.replace(/([\W_]|^)(\*\*|__)(?=\S)([^\r]*?\S[\*_]*)\2([\W_]|$)/g,
-            "$1<strong>$3</strong>$4");
-
-            text = text.replace(/([\W_]|^)(\*|_)(?=\S)([^\r\*_]*?\S)\2([\W_]|$)/g,
-            "$1<em>$3</em>$4");
-
-            return text;
-        }
-
-        function _DoBlockQuotes(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 <pre> content, so we need to fix that:
-                    bq = bq.replace(
-                            /(\s*<pre>[^\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("<blockquote>\n" + bq + "\n</blockquote>");
-                }
-            );
-            return text;
-        }
-
-        function _FormParagraphs(text, doNotUnhash) {
-            //
-            //  Params:
-            //    $text - string to process with html <p> tags
-            //
-
-            // Strip leading and trailing lines:
-            text = text.replace(/^\n+/g, "");
-            text = text.replace(/\n+$/g, "");
-
-            var grafs = text.split(/\n{2,}/g);
-            var grafsOut = [];
-            
-            var markerRe = /~K(\d+)K/;
-
-            //
-            // Wrap <p> tags.
-            //
-            var end = grafs.length;
-            for (var i = 0; i < end; i++) {
-                var str = grafs[i];
-
-                // if this is an HTML marker, copy it
-                if (markerRe.test(str)) {
-                    grafsOut.push(str);
-                }
-                else if (/\S/.test(str)) {
-                    str = _RunSpanGamut(str);
-                    str = str.replace(/^([ \t]*)/g, "<p>");
-                    str += "</p>"
-                    grafsOut.push(str);
-                }
-
-            }
-            //
-            // Unhashify HTML blocks
-            //
-            if (!doNotUnhash) {
-                end = grafsOut.length;
-                for (var i = 0; i < end; i++) {
-                    var foundAny = true;
-                    while (foundAny) { // we may need several runs, since the data may be nested
-                        foundAny = false;
-                        grafsOut[i] = grafsOut[i].replace(/~K(\d+)K/g, function (wholeMatch, id) {
-                            foundAny = true;
-                            return g_html_blocks[id];
-                        });
-                    }
-                }
-            }
-            return grafsOut.join("\n\n");
-        }
-
-        function _EncodeAmpsAndAngles(text) {
-            // Smart processing for ampersands and angle brackets that need to be encoded.
-
-            // Ampersand-encoding based entirely on Nat Irons's Amputator MT plugin:
-            //   http://bumppo.net/projects/amputator/
-            text = text.replace(/&(?!#?[xX]?(?:[0-9a-fA-F]+|\w+);)/g, "&amp;");
-
-            // Encode naked <'s
-            text = text.replace(/<(?![a-z\/?\$!])/gi, "&lt;");
-
-            return text;
-        }
-
-        function _EncodeBackslashEscapes(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;
-        }
-
-        function _DoAutoLinks(text) {
-
-            // note that at this point, all other URL in the text are already hyperlinked as <a href=""></a>
-            // *except* for the <http://www.foo.com> case
-
-            // automatically add < and > around unadorned raw hyperlinks
-            // must be preceded by space/BOF and followed by non-word/EOF character    
-            text = text.replace(/(^|\s)(https?|ftp)(:\/\/[-A-Z0-9+&@#\/%?=~_|\[\]\(\)!:,\.;]*[-A-Z0-9+&@#\/%=~_|\[\]])($|\W)/gi, "$1<$2$3>$4");
-
-            //  autolink anything like <http://example.com>
-            
-            var replacer = function (wholematch, m1) { return "<a href=\"" + m1 + "\">" + pluginHooks.plainLinkText(m1) + "</a>"; }
-            text = text.replace(/<((https?|ftp):[^'">\s]+)>/gi, replacer);
-
-            // Email addresses: <address@domain.foo>
-            /*
-            text = text.replace(/
-                <
-                (?:mailto:)?
-                (
-                    [-.\w]+
-                    \@
-                    [-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+
-                )
-                >
-            /gi, _DoAutoLinks_callback());
-            */
-
-            /* disabling email autolinking, since we don't do that on the server, either
-            text = text.replace(/<(?:mailto:)?([-.\w]+\@[-a-z0-9]+(\.[-a-z0-9]+)*\.[a-z]+)>/gi,
-                function(wholeMatch,m1) {
-                    return _EncodeEmailAddress( _UnescapeSpecialChars(m1) );
-                }
-            );
-            */
-            return text;
-        }
-
-        function _UnescapeSpecialChars(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;
-        }
-
-        function _Outdent(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;
-        }
-
-        function _Detab(text) {
-            if (!/\t/.test(text))
-                return text;
-
-            var spaces = ["    ", "   ", "  ", " "],
-            skew = 0,
-            v;
-
-            return text.replace(/[\n\t]/g, function (match, offset) {
-                if (match === "\n") {
-                    skew = offset + 1;
-                    return match;
-                }
-                v = (offset - skew) % 4;
-                skew = offset + 1;
-                return spaces[v];
-            });
-        }
-
-        //
-        //  attacklab: Utility functions
-        //
-
-        var _problemUrlChars = /(?:["'*()[\]:]|~D)/g;
-
-        // hex-encodes some unusual "problem" chars in URLs to avoid URL detection problems 
-        function encodeProblemUrlChars(url) {
-            if (!url)
-                return "";
-
-            var len = url.length;
-
-            return url.replace(_problemUrlChars, function (match, offset) {
-                if (match == "~D") // escape for dollar
-                    return "%24";
-                if (match == ":") {
-                    if (offset == len - 1 || /[0-9\/]/.test(url.charAt(offset + 1)))
-                        return ":"
-                }
-                return "%" + match.charCodeAt(0).toString(16);
-            });
-        }
-
-
-        function escapeCharacters(text, charsToEscape, afterBackslash) {
-            // First we have to escape the escape characters so that
-            // we can build a character class out of them
-            var regexString = "([" + charsToEscape.replace(/([\[\]\\])/g, "\\$1") + "])";
-
-            if (afterBackslash) {
-                regexString = "\\\\" + regexString;
-            }
-
-            var regex = new RegExp(regexString, "g");
-            text = text.replace(regex, escapeCharacters_callback);
-
-            return text;
-        }
-
-
-        function escapeCharacters_callback(wholeMatch, m1) {
-            var charCodeToEscape = m1.charCodeAt(0);
-            return "~E" + charCodeToEscape + "E";
-        }
-
-    }; // end of the Markdown.Converter constructor
-
-})();
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/pagedown/Markdown.Sanitizer.js b/lib/gollum/frontend/public/gollum/livepreview/js/pagedown/Markdown.Sanitizer.js
deleted file mode 100644
index b6709b9c..00000000
--- a/lib/gollum/frontend/public/gollum/livepreview/js/pagedown/Markdown.Sanitizer.js
+++ /dev/null
@@ -1,109 +0,0 @@
-(function () {
-    var output, Converter;
-    if (typeof exports === "object" && typeof require === "function") { // we're in a CommonJS (e.g. Node.js) module
-        output = exports;
-        Converter = require("./Markdown.Converter").Converter;
-    } else {
-        output = window.Markdown;
-        Converter = output.Converter;
-    }
-        
-    output.getSanitizingConverter = function () {
-        var converter = new Converter();
-        converter.hooks.chain("postConversion", sanitizeHtml);
-        converter.hooks.chain("postConversion", balanceTags);
-        return converter;
-    }
-
-    function sanitizeHtml(html) {
-        return html.replace(/<[^>]*>?/gi, sanitizeTag);
-    }
-
-    // (tags that can be opened/closed) | (tags that stand alone)
-    var basic_tag_whitelist = /^(<\/?(b|blockquote|code|del|dd|dl|dt|em|h1|h2|h3|h4|h5|h6|i|kbd|li|ol|p|pre|s|sup|sub|strong|strike|ul)>|<(br|hr)\s?\/?>)$/i;
-    // <a href="url..." optional title>|</a>
-    // Make https:// ftp:// prefix optional so relative links work. <a href="page1">page one</a>
-    var a_white = /^(<a\shref="(((https?|ftp):\/\/|\/))?[-A-Za-z0-9+&@#\/%?=~_|!:,.;\(\)]+"(\stitle="[^"<>]+")?\s?>|<\/a>)$/i;
-
-    // <img src="url..." optional width  optional height  optional alt  optional title
-    var img_white = /^(<img\ssrc="(https?:\/\/|\/)[-A-Za-z0-9+&@#\/%?=~_|!:,.;\(\)]+"(\swidth="\d{1,3}")?(\sheight="\d{1,3}")?(\salt="[^"<>]*")?(\stitle="[^"<>]*")?\s?\/?>)$/i;
-
-    function sanitizeTag(tag) {
-        if (tag.match(basic_tag_whitelist) || tag.match(a_white) || tag.match(img_white))
-            return tag;
-        else
-            return "";
-    }
-
-    /// <summary>
-    /// attempt to balance HTML tags in the html string
-    /// by removing any unmatched opening or closing tags
-    /// IMPORTANT: we *assume* HTML has *already* been 
-    /// sanitized and is safe/sane before balancing!
-    /// 
-    /// adapted from CODESNIPPET: A8591DBA-D1D3-11DE-947C-BA5556D89593
-    /// </summary>
-    function balanceTags(html) {
-
-        if (html == "")
-            return "";
-
-        var re = /<\/?\w+[^>]*(\s|$|>)/g;
-        // convert everything to lower case; this makes
-        // our case insensitive comparisons easier
-        var tags = html.toLowerCase().match(re);
-
-        // no HTML tags present? nothing to do; exit now
-        var tagcount = (tags || []).length;
-        if (tagcount == 0)
-            return html;
-
-        var tagname, tag;
-        var ignoredtags = "<p><img><br><li><hr>";
-        var match;
-        var tagpaired = [];
-        var tagremove = [];
-        var needsRemoval = false;
-
-        // loop through matched tags in forward order
-        for (var ctag = 0; ctag < tagcount; ctag++) {
-            tagname = tags[ctag].replace(/<\/?(\w+).*/, "$1");
-            // skip any already paired tags
-            // and skip tags in our ignore list; assume they're self-closed
-            if (tagpaired[ctag] || ignoredtags.search("<" + tagname + ">") > -1)
-                continue;
-
-            tag = tags[ctag];
-            match = -1;
-
-            if (!/^<\//.test(tag)) {
-                // this is an opening tag
-                // search forwards (next tags), look for closing tags
-                for (var ntag = ctag + 1; ntag < tagcount; ntag++) {
-                    if (!tagpaired[ntag] && tags[ntag] == "</" + tagname + ">") {
-                        match = ntag;
-                        break;
-                    }
-                }
-            }
-
-            if (match == -1)
-                needsRemoval = tagremove[ctag] = true; // mark for removal
-            else
-                tagpaired[match] = true; // mark paired
-        }
-
-        if (!needsRemoval)
-            return html;
-
-        // delete all orphaned tags from the string
-
-        var ctag = 0;
-        html = html.replace(re, function (match) {
-            var res = tagremove[ctag] ? "" : match;
-            ctag++;
-            return res;
-        });
-        return html;
-    }
-})();
diff --git a/lib/gollum/frontend/public/gollum/livepreview/js/sundown/sundown_o2.js b/lib/gollum/frontend/public/gollum/livepreview/js/sundown/sundown_o2.js
new file mode 100644
index 00000000..cf107401
--- /dev/null
+++ b/lib/gollum/frontend/public/gollum/livepreview/js/sundown/sundown_o2.js
@@ -0,0 +1 @@
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r=B[b-4>>2],w=r&3;if(1!=(w|0)){var x=r&-8;h=x>>2;var D=b+(x-8)|0,y=D,A=0==(r&1|0);c:do{if(A){var E=B[l>>2];if(0==(w|0)){break a}var G=-8-E|0;g=G>>2;var N=b+G|0,I=N,M=E+x|0;if(N>>>0<t>>>0){break b}if((I|0)==(v[W+20>>2]|0)){f=(b+(x-4)|0)>>2;if(3!=(v[f]&3|0)){var J=I;d=J>>2;var S=M;break}v[W+8>>2]=M;v[f]&=-2;v[g+(i+1)]=M|1;v[D>>2]=M;break a}if(256>E>>>0){var Q=B[g+(i+2)],Z=B[g+(i+3)];if((Q|0)==(Z|0)){v[W>>2]&=1<<(E>>>3)^-1,J=I,d=J>>2,S=M}else{var Ga=((E>>>2&1073741822)<<2)+W+40|0,Pa=(Q|0)!=(Ga|0)&Q>>>0<t>>>0;do{if(!Pa&&(Z|0)==(Ga|0)|Z>>>0>=t>>>0){v[Q+12>>2]=Z;v[Z+8>>2]=Q;J=I;d=J>>2;S=M;break c}}while(0);Y();c("Reached an unreachable!")}}else{var oa=N,ka=B[g+(i+6)],pa=B[g+(i+3)],eb=(pa|0)==(oa|0);do{if(eb){var X=G+(b+20)|0,Ha=v[X>>2];if(0==(Ha|0)){var sb=G+(b+16)|0,Pb=v[sb>>2];if(0==(Pb|0)){var ea=0;a=ea>>2;break}var Sa=sb,Ia=Pb}else{Sa=X,Ia=Ha,j=22}for(;;){var Qb=Ia+20|0,Rb=v[Qb>>2];if(0!=(Rb|0)){Sa=Qb,Ia=Rb}else{var 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()*",C);Ee=F([0,0,0,0,0,0,0,0,2,0,0,0,100,0,0,0,102,0,0,0],["*",0,0,0,"*",0,0,0,"*",0,0,0,"*",0,0,0,"*",0,0,0],C);F(1,"void*",C);K.kb=F([115,116,100,58,58,98,97,100,95,97,108,108,111,99,0],"i8",C);hf=F([0,0,0,0,0,0,0,0,2,0,0,0,104,0,0,0,106,0,0,0],["*",0,0,0,"*",0,0,0,"*",0,0,0,"*",0,0,0,"*",0,0,0],C);F(1,"void*",C);K.qa=F([98,97,100,95,97,114,114,97,121,95,110,101,119,95,108,101,110,103,116,104,0],"i8",C);K.V=F([83,116,57,98,97,100,95,97,108,108,111,99,0],"i8",C);kf=F(12,"*",C);K.U=F([83,116,50,48,98,97,100,95,97,114,114,97,121,95,110,101,119,95,108,101,110,103,116,104,0],"i8",C);lf=F(12,"*",C);v[T>>2]=gf|0;v[T+4>>2]=K.da|0;v[T+8>>2]=K.Ea|0;v[T+12>>2]=K.Za|0;v[T+16>>2]=K.C|0;v[T+20>>2]=K.Cb|0;v[T+24>>2]=gf|0;v[T+28>>2]=K.Qb|0;v[T+32>>2]=K.F|0;v[T+36>>2]=K.Yb|0;v[T+40>>2]=K.$b|0;v[T+44>>2]=K.ea|0;v[T+48>>2]=K.ha|0;v[T+52>>2]=K.la|0;v[T+56>>2]=gf|0;v[T+60>>2]=K.ma|0;v[T+64>>2]=gf|0;v[T+68>>2]=K.oa|0;v[T+72>>2]=K.w|0;v[T+76>>2]=gf|0;v[T+80>>2]=gf|0;v[T+84>>2]=K.G|0;v[T+88>>2]=K.wa|0;v[T+92>>2]=K.za|0;v[T+96>>2]=gf|0;v[T+100>>2]=K.m|0;v[T+104>>2]=K.Fa|0;v[T+108>>2]=K.Ia|0;v[T+112>>2]=K.z|0;v[T+116>>2]=gf|0;v[T+120>>2]=gf|0;v[T+124>>2]=gf|0;v[T+128>>2]=K.La|0;v[T+132>>2]=gf|0;v[T+136>>2]=gf|0;v[T+140>>2]=gf|0;v[T+144>>2]=gf|0;v[T+148>>2]=K.Na|0;v[Xd>>2]=K.vb|0;v[Xd+4>>2]=K.u|0;v[Xd+8>>2]=K.Oa|0;v[Xd+12>>2]=K.hb|0;v[Xd+16>>2]=K.k|0;v[ff>>2]=K.w|0;v[ff+4>>2]=K.Ya|0;v[ff+8>>2]=K.ob|0;v[ff+12>>2]=K.Bb|0;v[ff+16>>2]=K.Fb|0;v[ff+20>>2]=K.C|0;v[ff+24>>2]=K.G|0;v[ff+28>>2]=K.m|0;v[pe>>2]=gf|0;v[pe+4>>2]=K.j|0;v[pe+8>>2]=K.t|0;v[pe+12>>2]=K.bb|0;v[pe+16>>2]=K.rb|0;v[pe+20>>2]=K.Gb|0;v[pe+24>>2]=K.Tb|0;v[Ee+4>>2]=kf;v[hf+4>>2]=lf;jf=F([2,0,0,0,0],["i8*",0,0,0,0],C);v[kf>>2]=jf+8|0;v[kf+4>>2]=K.V|0;v[kf+8>>2]=aa;v[lf>>2]=jf+8|0;v[lf+4>>2]=K.U|0;v[lf+8>>2]=kf;H=[0,0,Fe,0,yc,0,Ad,0,Ed,0,(function(b,e,a,d){d=2>d>>>0;do{if(d){var f=0}else{if(32!=u[a-1|0]<<24>>24){f=0}else{if(32!=u[a-2|0]<<24>>24){f=0}else{for(var f=b+4|0,g=b|0,h=v[f>>2];0!=(h|0);){h=h-1|0;if(32!=u[v[g>>2]+h|0]<<24>>24){break}v[f>>2]=h}f=0!=(H[v[e+64>>2]](b,v[e+104>>2])|0)&1}}}}while(0);return f}),0,Fd,0,(function(b,e,a,d,f){d=s;s+=20;var g=d+4;v[d>>2]=0;var f=Od(a,f,d),h=g|0;v[h>>2]=a;var i=g+4|0;v[i>>2]=f;v[g+8>>2]=0;v[g+12>>2]=0;var j=2<f>>>0;a:do{if(j){var k=e+44|0,l=0==(v[k>>2]|0);do{if(!l){var o=B[d>>2];if(0!=(o|0)){j=P(e,1);v[h>>2]=a+1|0;v[i>>2]=f-2|0;Hd(j,g);b=H[v[k>>2]](b,j,o,v[e+104>>2]);R(e,1);k=b;break a}}}while(0);k=v[e+72>>2];k=0==(k|0)?0:H[k](b,g,v[e+104>>2])}else{k=0}}while(0);s=d;return 0==(k|0)?0:f}),0,(function(b,e,a,d,f){var g,d=s;s+=16;g=d>>2;v[g]=0;v[g+1]=0;v[g+2]=0;v[g+3]=0;1<f>>>0?(a=a+1|0,f=z[a]&255,0==(Yd(K.$a|0,f,23)|0)?b=0:(g=B[e+92>>2],0==(g|0)?O(b,f):(v[d>>2]=a,v[d+4>>2]=1,H[g](b,d,v[e+104>>2])),b=2)):(1==(f|0)&&O(b,z[a]&255),b=2);s=d;return b}),0,(function(b,e,a,d,f){var g,d=s;s+=16;g=d>>2;v[g]=0;v[g+1]=0;v[g+2]=0;v[g+3]=0;for(var h=1<f>>>0?35==u[a+1|0]<<24>>24?2:1:1;;){if(h>>>0>=f>>>0){var i=0;break}g=a+h|0;h=h+1|0;if(0==(wd(z[g]&255)|0)){if(59!=u[g]<<24>>24){i=0;break}f=B[e+88>>2];if(0==(f|0)){L(b,a,h);i=h;break}v[d>>2]=a;v[d+4>>2]=h;H[f](b,d,v[e+104>>2]);i=h;break}}s=d;return i}),0,(function(b,e,a,d,f){var g=s;s+=4;var h=e+44|0;if(0==(v[h>>2]|0)){b=0}else{if(0!=(v[e+428>>2]|0)){b=0}else{var i=P(e,1),a=$d(g,i,a,d,f);0!=(a|0)&&(d=b+4|0,v[d>>2]=v[d>>2]-v[g>>2]|0,H[v[h>>2]](b,i,1,v[e+104>>2]));R(e,1);b=a}}s=g;return b}),0,(function(b,e,a,d,f){var g=s;s+=4;var h=e+44|0;if(0==(v[h>>2]|0)){b=0}else{if(0!=(v[e+428>>2]|0)){b=0}else{var i=P(e,1),a=Zd(g,i,a,d,f);0!=(a|0)&&(d=b+4|0,v[d>>2]=v[d>>2]-v[g>>2]|0,H[v[h>>2]](b,i,2,v[e+104>>2]));R(e,1);b=a}}s=g;return b}),0,Id,0,Nd,0,be,0,(function(b,e){L(b,K.Kb|0,6);0!=(e|0)&&ce(b,v[e>>2],v[e+4>>2],0);L(b,K.Mb|0,7);return 1}),0,(function(b,e){if(0==(e|0)){var 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Module.setStatus?(Module.setStatus("Running..."),setTimeout((function(){setTimeout((function(){Module.setStatus("")}),1);e()}),1),0):e()}Module.run=xc;Nb(Ob);Module.noInitialRun&&wc();0==vc&&xc()
diff --git a/lib/gollum/frontend/public/gollum/livepreview/licenses/pagedown/LICENSE.txt b/lib/gollum/frontend/public/gollum/livepreview/licenses/pagedown/LICENSE.txt
deleted file mode 100644
index a0c94675..00000000
--- a/lib/gollum/frontend/public/gollum/livepreview/licenses/pagedown/LICENSE.txt
+++ /dev/null
@@ -1,32 +0,0 @@
-A javascript port of Markdown, as used on Stack Overflow
-and the rest of Stack Exchange network.
-
-Largely based on showdown.js by John Fraser (Attacklab).
-
-Original Markdown Copyright (c) 2004-2005 John Gruber
-  <http://daringfireball.net/projects/markdown/>
-
-
-Original Showdown code copyright (c) 2007 John Fraser
-
-Modifications and bugfixes (c) 2009 Dana Robinson
-Modifications and bugfixes (c) 2009-2011 Stack Exchange Inc.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-
diff --git a/lib/gollum/frontend/public/gollum/livepreview/licenses/sundown/sundown.txt b/lib/gollum/frontend/public/gollum/livepreview/licenses/sundown/sundown.txt
new file mode 100644
index 00000000..a53a750d
--- /dev/null
+++ b/lib/gollum/frontend/public/gollum/livepreview/licenses/sundown/sundown.txt
@@ -0,0 +1,4 @@
+License
+Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/lib/gollum/frontend/public/gollum/livepreview/readme.md b/lib/gollum/frontend/public/gollum/livepreview/readme.md
index cc46108f..d2b2f7bc 100644
--- a/lib/gollum/frontend/public/gollum/livepreview/readme.md
+++ b/lib/gollum/frontend/public/gollum/livepreview/readme.md
@@ -9,13 +9,24 @@ Uses code/assets from:
 0. [jquery](https://github.com/jquery/jquery)
 0. [sizzle](https://github.com/jquery/sizzle)
 0. [notepages](https://github.com/fivesixty/notepages)
-0. [pagedown](https://code.google.com/p/pagedown/)
 0. [retina_display_icon_set](http://blog.twg.ca/2010/11/retina-display-icon-set/)
 0. [debounce](https://github.com/cowboy/jquery-throttle-debounce)
 0. [requirejs](https://github.com/jrburke/requirejs)
+0. [emscripten](https://github.com/kripken/emscripten)
+0. [sundown](https://github.com/bootstraponline/sundown)
 
 See licenses folder for details.
 
+# Updating gollum
+
+ - /public/css/custom.css (not css/gollum/)
+ - /public/images/*
+ - /public/js/*
+ - /public/licenses/*
+ - /public/index.html
+ - readme.md
+ - replace template.css link in index.html
+
 # Dependency Notes
 
 ## Ace
@@ -32,20 +43,11 @@ Using jQuery v1.7.2.
 
 - Download latest production version from [jquery.com](http://www.jquery.com).
 
-## Pagedown
-The [Pagedown code](https://code.google.com/p/pagedown/source/list) used is from revision `3151a581819f39123b0b5fd1ca9e26cebdcaa873`, May 31, 2012. Markdown.Converter.js has been enhanced to support Gollum style code highlighting. Markdown.Sanitizer.js has been fixed to not remove h4-6.
+## Sundown & emscripten
 
-https://code.google.com/p/pagedown/source/detail?r=3151a581819f39123b0b5fd1ca9e26cebdcaa873
-
-- The h4-6 fix has been submitted for upstream inclusion. [#29](https://code.google.com/p/pagedown/issues/detail?id=29)
-- livepreview has various additions to pagedown so it can't be replaced by upstream unpatched.
-
-# Updating gollum
-
- - /public/css/custom.css (not css/gollum/)
- - /public/images/*
- - /public/js/*
- - /public/licenses/*
- - /public/index.html
- - readme.md
- - replace template.css link in index.html
+- Install emscripten
+- src/settings.js must be edited to include _str_to_html in exported functions.
+> var EXPORTED_FUNCTIONS = ['_main', '_malloc', '_free', '_str_to_html'];
+- Run to_js.sh after checking out the emscripten Sundown repository
+- Copy the o2 version into livepreview
+- Based on upstrean Sundown [c744346e507e7f905d4b401de78db4404068a43c](https://github.com/tanoku/sundown/commit/c744346e507e7f905d4b401de78db4404068a43c)