# HG changeset patch
# User Edho Arief <edho@myconan.net>
# Date 1368327617 -32400
# Node ID 56c4cd16d8492ac0b8b6552dc84e91ab8118233d
# Parent  010bfb3a346349302c548d7e80f8c828081cf759
Correct place to put vendored assets is vendor/

diff -r 010bfb3a3463 -r 56c4cd16d849 lib/assets/javascripts/jquery.autosize.js
--- a/lib/assets/javascripts/jquery.autosize.js	Sun May 12 02:53:14 2013 +0900
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,180 +0,0 @@
-// Autosize 1.13 - jQuery plugin for textareas
-// (c) 2012 Jack Moore - jacklmoore.com
-// license: www.opensource.org/licenses/mit-license.php
-
-(function ($) {
-	var
-	defaults = {
-		className: 'autosizejs',
-		append: "",
-		callback: false
-	},
-	hidden = 'hidden',
-	borderBox = 'border-box',
-	lineHeight = 'lineHeight',
-	copy = '<textarea tabindex="-1" style="position:absolute; top:-9999px; left:-9999px; right:auto; bottom:auto; -moz-box-sizing:content-box; -webkit-box-sizing:content-box; box-sizing:content-box; word-wrap:break-word; height:0 !important; min-height:0 !important; overflow:hidden;"/>',
-	// line-height is omitted because IE7/IE8 doesn't return the correct value.
-	copyStyle = [
-		'fontFamily',
-		'fontSize',
-		'fontWeight',
-		'fontStyle',
-		'letterSpacing',
-		'textTransform',
-		'wordSpacing',
-		'textIndent'
-	],
-	oninput = 'oninput',
-	onpropertychange = 'onpropertychange',
-	test = $(copy)[0];
-
-	// For testing support in old FireFox
-	test.setAttribute(oninput, "return");
-
-	if ($.isFunction(test[oninput]) || onpropertychange in test) {
-
-		// test that line-height can be accurately copied to avoid
-		// incorrect value reporting in old IE and old Opera
-		$(test).css(lineHeight, '99px');
-		if ($(test).css(lineHeight) === '99px') {
-			copyStyle.push(lineHeight);
-		}
-
-		$.fn.autosize = function (options) {
-			options = $.extend({}, defaults, options || {});
-
-			return this.each(function () {
-				var
-				ta = this,
-				$ta = $(ta),
-				mirror,
-				minHeight = $ta.height(),
-				maxHeight = parseInt($ta.css('maxHeight'), 10),
-				active,
-				i = copyStyle.length,
-				resize,
-				boxOffset = 0,
-				value = ta.value,
-				callback = $.isFunction(options.callback);
-
-				if ($ta.css('box-sizing') === borderBox || $ta.css('-moz-box-sizing') === borderBox || $ta.css('-webkit-box-sizing') === borderBox){
-					boxOffset = $ta.outerHeight() - $ta.height();
-				}
-
-				if ($ta.data('mirror') || $ta.data('ismirror')) {
-					// if autosize has already been applied, exit.
-					// if autosize is being applied to a mirror element, exit.
-					return;
-				} else {
-					mirror = $(copy).data('ismirror', true).addClass(options.className)[0];
-
-					resize = $ta.css('resize') === 'none' ? 'none' : 'horizontal';
-
-					$ta.data('mirror', $(mirror)).css({
-						overflow: hidden,
-						overflowY: hidden,
-						wordWrap: 'break-word',
-						resize: resize
-					});
-				}
-
-				// Opera returns '-1px' when max-height is set to 'none'.
-				maxHeight = maxHeight && maxHeight > 0 ? maxHeight : 9e4;
-
-				// Using mainly bare JS in this function because it is going
-				// to fire very often while typing, and needs to very efficient.
-				function adjust() {
-					var height, overflow, original;
-
-					// the active flag keeps IE from tripping all over itself.  Otherwise
-					// actions in the adjust function will cause IE to call adjust again.
-					if (!active) {
-						active = true;
-						mirror.value = ta.value + options.append;
-						mirror.style.overflowY = ta.style.overflowY;
-						original = parseInt(ta.style.height,10);
-
-						// Update the width in case the original textarea width has changed
-						mirror.style.width = $ta.css('width');
-
-						// Needed for IE to reliably return the correct scrollHeight
-						mirror.scrollTop = 0;
-
-						// Set a very high value for scrollTop to be sure the
-						// mirror is scrolled all the way to the bottom.
-						mirror.scrollTop = 9e4;
-
-						height = mirror.scrollTop;
-						overflow = hidden;
-						if (height > maxHeight) {
-							height = maxHeight;
-							overflow = 'scroll';
-						} else if (height < minHeight) {
-							height = minHeight;
-						}
-						height += boxOffset;
-						ta.style.overflowY = overflow;
-
-						if (original !== height) {
-							ta.style.height = height + 'px';
-							if (callback) {
-								options.callback.call(ta);
-							}
-						}
-						
-						// This small timeout gives IE a chance to draw it's scrollbar
-						// before adjust can be run again (prevents an infinite loop).
-						setTimeout(function () {
-							active = false;
-						}, 1);
-					}
-				}
-
-				// mirror is a duplicate textarea located off-screen that
-				// is automatically updated to contain the same text as the
-				// original textarea.  mirror always has a height of 0.
-				// This gives a cross-browser supported way getting the actual
-				// height of the text, through the scrollTop property.
-				while (i--) {
-					mirror.style[copyStyle[i]] = $ta.css(copyStyle[i]);
-				}
-
-				$('body').append(mirror);
-
-				if (onpropertychange in ta) {
-					if (oninput in ta) {
-						// Detects IE9.  IE9 does not fire onpropertychange or oninput for deletions,
-						// so binding to onkeyup to catch most of those occassions.  There is no way that I
-						// know of to detect something like 'cut' in IE9.
-						ta[oninput] = ta.onkeyup = adjust;
-					} else {
-						// IE7 / IE8
-						ta[onpropertychange] = adjust;
-					}
-				} else {
-					// Modern Browsers
-					ta[oninput] = adjust;
-
-					// The textarea overflow is now hidden.  But Chrome doesn't reflow the text after the scrollbars are removed.
-					// This is a hack to get Chrome to reflow it's text.
-					ta.value = '';
-					ta.value = value;
-				}
-
-				$(window).resize(adjust);
-
-				// Allow for manual triggering if needed.
-				$ta.bind('autosize', adjust);
-
-				// Call adjust in case the textarea already contains text.
-				adjust();
-			});
-		};
-	} else {
-		// Makes no changes for older browsers (FireFox3- and Safari4-)
-		$.fn.autosize = function (callback) {
-			return this;
-		};
-	}
-
-}(window.jQuery || window.Zepto));
\ No newline at end of file
diff -r 010bfb3a3463 -r 56c4cd16d849 lib/assets/javascripts/marked.js
--- a/lib/assets/javascripts/marked.js	Sun May 12 02:53:14 2013 +0900
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,781 +0,0 @@
-/**
- * marked - A markdown parser (https://github.com/chjj/marked)
- * Copyright (c) 2011-2012, Christopher Jeffrey. (MIT Licensed)
- */
-
-;(function() {
-
-/**
- * Block-Level Grammar
- */
-
-var block = {
-  newline: /^\n+/,
-  code: /^( {4}[^\n]+\n*)+/,
-  fences: noop,
-  hr: /^( *[-*_]){3,} *(?:\n+|$)/,
-  heading: /^ *(#{1,6}) *([^\n]+?) *#* *(?:\n+|$)/,
-  lheading: /^([^\n]+)\n *(=|-){3,} *\n*/,
-  blockquote: /^( *>[^\n]+(\n[^\n]+)*\n*)+/,
-  list: /^( *)(bull) [^\0]+?(?:hr|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
-  html: /^ *(?:comment|closed|closing) *(?:\n{2,}|\s*$)/,
-  def: /^ *\[([^\]]+)\]: *([^\s]+)(?: +["(]([^\n]+)[")])? *(?:\n+|$)/,
-  paragraph: /^([^\n]+\n?(?!hr|heading|lheading|blockquote|tag|def))+\n*/,
-  text: /^[^\n]+/
-};
-
-block.bullet = /(?:[*+-]|\d+\.)/;
-block.item = /^( *)(bull) [^\n]*(?:\n(?!\1bull )[^\n]*)*/;
-block.item = replace(block.item, 'gm')
-  (/bull/g, block.bullet)
-  ();
-
-block.list = replace(block.list)
-  (/bull/g, block.bullet)
-  ('hr', /\n+(?=(?: *[-*_]){3,} *(?:\n+|$))/)
-  ();
-
-block.html = replace(block.html)
-  ('comment', /<!--[^\0]*?-->/)
-  ('closed', /<(tag)[^\0]+?<\/\1>/)
-  ('closing', /<tag(?:"[^"]*"|'[^']*'|[^'">])*?>/)
-  (/tag/g, tag())
-  ();
-
-block.paragraph = replace(block.paragraph)
-  ('hr', block.hr)
-  ('heading', block.heading)
-  ('lheading', block.lheading)
-  ('blockquote', block.blockquote)
-  ('tag', '<' + tag())
-  ('def', block.def)
-  ();
-
-block.normal = {
-  fences: block.fences,
-  paragraph: block.paragraph
-};
-
-block.gfm = {
-  fences: /^ *(```|~~~) *(\w+)? *\n([^\0]+?)\s*\1 *(?:\n+|$)/,
-  paragraph: /^/
-};
-
-block.gfm.paragraph = replace(block.paragraph)
-  ('(?!', '(?!' + block.gfm.fences.source.replace('\\1', '\\2') + '|')
-  ();
-
-/**
- * Block Lexer
- */
-
-block.lexer = function(src) {
-  var tokens = [];
-
-  tokens.links = {};
-
-  src = src
-    .replace(/\r\n|\r/g, '\n')
-    .replace(/\t/g, '    ');
-
-  return block.token(src, tokens, true);
-};
-
-block.token = function(src, tokens, top) {
-  var src = src.replace(/^ +$/gm, '')
-    , next
-    , loose
-    , cap
-    , item
-    , space
-    , i
-    , l;
-
-  while (src) {
-    // newline
-    if (cap = block.newline.exec(src)) {
-      src = src.substring(cap[0].length);
-      if (cap[0].length > 1) {
-        tokens.push({
-          type: 'space'
-        });
-      }
-    }
-
-    // code
-    if (cap = block.code.exec(src)) {
-      src = src.substring(cap[0].length);
-      cap = cap[0].replace(/^ {4}/gm, '');
-      tokens.push({
-        type: 'code',
-        text: !options.pedantic
-          ? cap.replace(/\n+$/, '')
-          : cap
-      });
-      continue;
-    }
-
-    // fences (gfm)
-    if (cap = block.fences.exec(src)) {
-      src = src.substring(cap[0].length);
-      tokens.push({
-        type: 'code',
-        lang: cap[2],
-        text: cap[3]
-      });
-      continue;
-    }
-
-    // heading
-    if (cap = block.heading.exec(src)) {
-      src = src.substring(cap[0].length);
-      tokens.push({
-        type: 'heading',
-        depth: cap[1].length,
-        text: cap[2]
-      });
-      continue;
-    }
-
-    // lheading
-    if (cap = block.lheading.exec(src)) {
-      src = src.substring(cap[0].length);
-      tokens.push({
-        type: 'heading',
-        depth: cap[2] === '=' ? 1 : 2,
-        text: cap[1]
-      });
-      continue;
-    }
-
-    // hr
-    if (cap = block.hr.exec(src)) {
-      src = src.substring(cap[0].length);
-      tokens.push({
-        type: 'hr'
-      });
-      continue;
-    }
-
-    // blockquote
-    if (cap = block.blockquote.exec(src)) {
-      src = src.substring(cap[0].length);
-
-      tokens.push({
-        type: 'blockquote_start'
-      });
-
-      cap = cap[0].replace(/^ *> ?/gm, '');
-
-      // Pass `top` to keep the current
-      // "toplevel" state. This is exactly
-      // how markdown.pl works.
-      block.token(cap, tokens, top);
-
-      tokens.push({
-        type: 'blockquote_end'
-      });
-
-      continue;
-    }
-
-    // list
-    if (cap = block.list.exec(src)) {
-      src = src.substring(cap[0].length);
-
-      tokens.push({
-        type: 'list_start',
-        ordered: isFinite(cap[2])
-      });
-
-      // Get each top-level item.
-      cap = cap[0].match(block.item);
-
-      next = false;
-      l = cap.length;
-      i = 0;
-
-      for (; i < l; i++) {
-        item = cap[i];
-
-        // Remove the list item's bullet
-        // so it is seen as the next token.
-        space = item.length;
-        item = item.replace(/^ *([*+-]|\d+\.) +/, '');
-
-        // Outdent whatever the
-        // list item contains. Hacky.
-        if (~item.indexOf('\n ')) {
-          space -= item.length;
-          item = !options.pedantic
-            ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '')
-            : item.replace(/^ {1,4}/gm, '');
-        }
-
-        // Determine whether item is loose or not.
-        // Use: /(^|\n)(?! )[^\n]+\n\n(?!\s*$)/
-        // for discount behavior.
-        loose = next || /\n\n(?!\s*$)/.test(item);
-        if (i !== l - 1) {
-          next = item[item.length-1] === '\n';
-          if (!loose) loose = next;
-        }
-
-        tokens.push({
-          type: loose
-            ? 'loose_item_start'
-            : 'list_item_start'
-        });
-
-        // Recurse.
-        block.token(item, tokens);
-
-        tokens.push({
-          type: 'list_item_end'
-        });
-      }
-
-      tokens.push({
-        type: 'list_end'
-      });
-
-      continue;
-    }
-
-    // html
-    if (cap = block.html.exec(src)) {
-      src = src.substring(cap[0].length);
-      tokens.push({
-        type: options.sanitize
-          ? 'paragraph'
-          : 'html',
-        pre: cap[1] === 'pre',
-        text: cap[0]
-      });
-      continue;
-    }
-
-    // def
-    if (top && (cap = block.def.exec(src))) {
-      src = src.substring(cap[0].length);
-      tokens.links[cap[1].toLowerCase()] = {
-        href: cap[2],
-        title: cap[3]
-      };
-      continue;
-    }
-
-    // top-level paragraph
-    if (top && (cap = block.paragraph.exec(src))) {
-      src = src.substring(cap[0].length);
-      tokens.push({
-        type: 'paragraph',
-        text: cap[0]
-      });
-      continue;
-    }
-
-    // text
-    if (cap = block.text.exec(src)) {
-      // Top-level should never reach here.
-      src = src.substring(cap[0].length);
-      tokens.push({
-        type: 'text',
-        text: cap[0]
-      });
-      continue;
-    }
-  }
-
-  return tokens;
-};
-
-/**
- * Inline Processing
- */
-
-var inline = {
-  escape: /^\\([\\`*{}\[\]()#+\-.!_>])/,
-  autolink: /^<([^ >]+(@|:\/)[^ >]+)>/,
-  url: noop,
-  tag: /^<!--[^\0]*?-->|^<\/?\w+(?:"[^"]*"|'[^']*'|[^'">])*?>/,
-  link: /^!?\[(inside)\]\(href\)/,
-  reflink: /^!?\[(inside)\]\s*\[([^\]]*)\]/,
-  nolink: /^!?\[((?:\[[^\]]*\]|[^\[\]])*)\]/,
-  strong: /^__([^\0]+?)__(?!_)|^\*\*([^\0]+?)\*\*(?!\*)/,
-  em: /^\b_((?:__|[^\0])+?)_\b|^\*((?:\*\*|[^\0])+?)\*(?!\*)/,
-  code: /^(`+)([^\0]*?[^`])\1(?!`)/,
-  br: /^ {2,}\n(?!\s*$)/,
-  text: /^[^\0]+?(?=[\\<!\[_*`]| {2,}\n|$)/
-};
-
-inline._linkInside = /(?:\[[^\]]*\]|[^\]]|\](?=[^\[]*\]))*/;
-inline._linkHref = /\s*<?([^\s]*?)>?(?:\s+['"]([^\0]*?)['"])?\s*/;
-
-inline.link = replace(inline.link)
-  ('inside', inline._linkInside)
-  ('href', inline._linkHref)
-  ();
-
-inline.reflink = replace(inline.reflink)
-  ('inside', inline._linkInside)
-  ();
-
-inline.normal = {
-  url: inline.url,
-  strong: inline.strong,
-  em: inline.em,
-  text: inline.text
-};
-
-inline.pedantic = {
-  strong: /^__(?=\S)([^\0]*?\S)__(?!_)|^\*\*(?=\S)([^\0]*?\S)\*\*(?!\*)/,
-  em: /^_(?=\S)([^\0]*?\S)_(?!_)|^\*(?=\S)([^\0]*?\S)\*(?!\*)/
-};
-
-inline.gfm = {
-  url: /^(https?:\/\/[^\s]+[^.,:;"')\]\s])/,
-  text: /^[^\0]+?(?=[\\<!\[_*`]|https?:\/\/| {2,}\n|$)/
-};
-
-/**
- * Inline Lexer
- */
-
-inline.lexer = function(src) {
-  var out = ''
-    , links = tokens.links
-    , link
-    , text
-    , href
-    , cap;
-
-  while (src) {
-    // escape
-    if (cap = inline.escape.exec(src)) {
-      src = src.substring(cap[0].length);
-      out += cap[1];
-      continue;
-    }
-
-    // autolink
-    if (cap = inline.autolink.exec(src)) {
-      src = src.substring(cap[0].length);
-      if (cap[2] === '@') {
-        text = cap[1][6] === ':'
-          ? mangle(cap[1].substring(7))
-          : mangle(cap[1]);
-        href = mangle('mailto:') + text;
-      } else {
-        text = escape(cap[1]);
-        href = text;
-      }
-      out += '<a href="'
-        + href
-        + '">'
-        + text
-        + '</a>';
-      continue;
-    }
-
-    // url (gfm)
-    if (cap = inline.url.exec(src)) {
-      src = src.substring(cap[0].length);
-      text = escape(cap[1]);
-      href = text;
-      out += '<a href="'
-        + href
-        + '">'
-        + text
-        + '</a>';
-      continue;
-    }
-
-    // tag
-    if (cap = inline.tag.exec(src)) {
-      src = src.substring(cap[0].length);
-      out += options.sanitize
-        ? escape(cap[0])
-        : cap[0];
-      continue;
-    }
-
-    // link
-    if (cap = inline.link.exec(src)) {
-      src = src.substring(cap[0].length);
-      out += outputLink(cap, {
-        href: cap[2],
-        title: cap[3]
-      });
-      continue;
-    }
-
-    // reflink, nolink
-    if ((cap = inline.reflink.exec(src))
-        || (cap = inline.nolink.exec(src))) {
-      src = src.substring(cap[0].length);
-      link = (cap[2] || cap[1]).replace(/\s+/g, ' ');
-      link = links[link.toLowerCase()];
-      if (!link || !link.href) {
-        out += cap[0][0];
-        src = cap[0].substring(1) + src;
-        continue;
-      }
-      out += outputLink(cap, link);
-      continue;
-    }
-
-    // strong
-    if (cap = inline.strong.exec(src)) {
-      src = src.substring(cap[0].length);
-      out += '<strong>'
-        + inline.lexer(cap[2] || cap[1])
-        + '</strong>';
-      continue;
-    }
-
-    // em
-    if (cap = inline.em.exec(src)) {
-      src = src.substring(cap[0].length);
-      out += '<em>'
-        + inline.lexer(cap[2] || cap[1])
-        + '</em>';
-      continue;
-    }
-
-    // code
-    if (cap = inline.code.exec(src)) {
-      src = src.substring(cap[0].length);
-      out += '<code>'
-        + escape(cap[2], true)
-        + '</code>';
-      continue;
-    }
-
-    // br
-    if (cap = inline.br.exec(src)) {
-      src = src.substring(cap[0].length);
-      out += '<br>';
-      continue;
-    }
-
-    // text
-    if (cap = inline.text.exec(src)) {
-      src = src.substring(cap[0].length);
-      out += escape(cap[0]);
-      continue;
-    }
-  }
-
-  return out;
-};
-
-function outputLink(cap, link) {
-  if (cap[0][0] !== '!') {
-    return '<a href="'
-      + escape(link.href)
-      + '"'
-      + (link.title
-      ? ' title="'
-      + escape(link.title)
-      + '"'
-      : '')
-      + '>'
-      + inline.lexer(cap[1])
-      + '</a>';
-  } else {
-    return '<img src="'
-      + escape(link.href)
-      + '" alt="'
-      + escape(cap[1])
-      + '"'
-      + (link.title
-      ? ' title="'
-      + escape(link.title)
-      + '"'
-      : '')
-      + '>';
-  }
-}
-
-/**
- * Parsing
- */
-
-var tokens
-  , token;
-
-function next() {
-  return token = tokens.pop();
-}
-
-function tok() {
-  switch (token.type) {
-    case 'space': {
-      return '';
-    }
-    case 'hr': {
-      return '<hr>\n';
-    }
-    case 'heading': {
-      return '<h'
-        + token.depth
-        + '>'
-        + inline.lexer(token.text)
-        + '</h'
-        + token.depth
-        + '>\n';
-    }
-    case 'code': {
-      if (options.highlight) {
-        token.code = options.highlight(token.text, token.lang);
-        if (token.code != null && token.code !== token.text) {
-          token.escaped = true;
-          token.text = token.code;
-        }
-      }
-
-      if (!token.escaped) {
-        token.text = escape(token.text, true);
-      }
-
-      return '<pre><code'
-        + (token.lang
-        ? ' class="lang-'
-        + token.lang
-        + '"'
-        : '')
-        + '>'
-        + token.text
-        + '</code></pre>\n';
-    }
-    case 'blockquote_start': {
-      var body = '';
-
-      while (next().type !== 'blockquote_end') {
-        body += tok();
-      }
-
-      return '<blockquote>\n'
-        + body
-        + '</blockquote>\n';
-    }
-    case 'list_start': {
-      var type = token.ordered ? 'ol' : 'ul'
-        , body = '';
-
-      while (next().type !== 'list_end') {
-        body += tok();
-      }
-
-      return '<'
-        + type
-        + '>\n'
-        + body
-        + '</'
-        + type
-        + '>\n';
-    }
-    case 'list_item_start': {
-      var body = '';
-
-      while (next().type !== 'list_item_end') {
-        body += token.type === 'text'
-          ? parseText()
-          : tok();
-      }
-
-      return '<li>'
-        + body
-        + '</li>\n';
-    }
-    case 'loose_item_start': {
-      var body = '';
-
-      while (next().type !== 'list_item_end') {
-        body += tok();
-      }
-
-      return '<li>'
-        + body
-        + '</li>\n';
-    }
-    case 'html': {
-      return !token.pre && !options.pedantic
-        ? inline.lexer(token.text)
-        : token.text;
-    }
-    case 'paragraph': {
-      return '<p>'
-        + inline.lexer(token.text)
-        + '</p>\n';
-    }
-    case 'text': {
-      return '<p>'
-        + parseText()
-        + '</p>\n';
-    }
-  }
-}
-
-function parseText() {
-  var body = token.text
-    , top;
-
-  while ((top = tokens[tokens.length-1])
-         && top.type === 'text') {
-    body += '\n' + next().text;
-  }
-
-  return inline.lexer(body);
-}
-
-function parse(src) {
-  tokens = src.reverse();
-
-  var out = '';
-  while (next()) {
-    out += tok();
-  }
-
-  tokens = null;
-  token = null;
-
-  return out;
-}
-
-/**
- * Helpers
- */
-
-function escape(html, encode) {
-  return html
-    .replace(!encode ? /&(?!#?\w+;)/g : /&/g, '&amp;')
-    .replace(/</g, '&lt;')
-    .replace(/>/g, '&gt;')
-    .replace(/"/g, '&quot;')
-    .replace(/'/g, '&#39;');
-}
-
-function mangle(text) {
-  var out = ''
-    , l = text.length
-    , i = 0
-    , ch;
-
-  for (; i < l; i++) {
-    ch = text.charCodeAt(i);
-    if (Math.random() > 0.5) {
-      ch = 'x' + ch.toString(16);
-    }
-    out += '&#' + ch + ';';
-  }
-
-  return out;
-}
-
-function tag() {
-  var tag = '(?!(?:'
-    + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code'
-    + '|var|samp|kbd|sub|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo'
-    + '|span|br|wbr|ins|del|img)\\b)\\w+(?!:/|@)\\b';
-
-  return tag;
-}
-
-function replace(regex, opt) {
-  regex = regex.source;
-  opt = opt || '';
-  return function self(name, val) {
-    if (!name) return new RegExp(regex, opt);
-    val = val.source || val;
-    val = val.replace(/(^|[^\[])\^/g, '$1');
-    regex = regex.replace(name, val);
-    return self;
-  };
-}
-
-function noop() {}
-noop.exec = noop;
-
-/**
- * Marked
- */
-
-function marked(src, opt) {
-  setOptions(opt);
-  return parse(block.lexer(src));
-}
-
-/**
- * Options
- */
-
-var options
-  , defaults;
-
-function setOptions(opt) {
-  if (!opt) opt = defaults;
-  if (options === opt) return;
-  options = opt;
-
-  if (options.gfm) {
-    block.fences = block.gfm.fences;
-    block.paragraph = block.gfm.paragraph;
-    inline.text = inline.gfm.text;
-    inline.url = inline.gfm.url;
-  } else {
-    block.fences = block.normal.fences;
-    block.paragraph = block.normal.paragraph;
-    inline.text = inline.normal.text;
-    inline.url = inline.normal.url;
-  }
-
-  if (options.pedantic) {
-    inline.em = inline.pedantic.em;
-    inline.strong = inline.pedantic.strong;
-  } else {
-    inline.em = inline.normal.em;
-    inline.strong = inline.normal.strong;
-  }
-}
-
-marked.options =
-marked.setOptions = function(opt) {
-  defaults = opt;
-  setOptions(opt);
-  return marked;
-};
-
-marked.setOptions({
-  gfm: true,
-  pedantic: false,
-  sanitize: false,
-  highlight: null
-});
-
-/**
- * Expose
- */
-
-marked.parser = function(src, opt) {
-  setOptions(opt);
-  return parse(src);
-};
-
-marked.lexer = function(src, opt) {
-  setOptions(opt);
-  return block.lexer(src);
-};
-
-marked.parse = marked;
-
-if (typeof module !== 'undefined') {
-  module.exports = marked;
-} else {
-  this.marked = marked;
-}
-
-}).call(function() {
-  return this || (typeof window !== 'undefined' ? window : global);
-}());
diff -r 010bfb3a3463 -r 56c4cd16d849 lib/assets/javascripts/prettify.js
--- a/lib/assets/javascripts/prettify.js	Sun May 12 02:53:14 2013 +0900
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1477 +0,0 @@
-// Copyright (C) 2006 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-
-/**
- * @fileoverview
- * some functions for browser-side pretty printing of code contained in html.
- *
- * <p>
- * For a fairly comprehensive set of languages see the
- * <a href="http://google-code-prettify.googlecode.com/svn/trunk/README.html#langs">README</a>
- * file that came with this source.  At a minimum, the lexer should work on a
- * number of languages including C and friends, Java, Python, Bash, SQL, HTML,
- * XML, CSS, Javascript, and Makefiles.  It works passably on Ruby, PHP and Awk
- * and a subset of Perl, but, because of commenting conventions, doesn't work on
- * Smalltalk, Lisp-like, or CAML-like languages without an explicit lang class.
- * <p>
- * Usage: <ol>
- * <li> include this source file in an html page via
- *   {@code <script type="text/javascript" src="/path/to/prettify.js"></script>}
- * <li> define style rules.  See the example page for examples.
- * <li> mark the {@code <pre>} and {@code <code>} tags in your source with
- *    {@code class=prettyprint.}
- *    You can also use the (html deprecated) {@code <xmp>} tag, but the pretty
- *    printer needs to do more substantial DOM manipulations to support that, so
- *    some css styles may not be preserved.
- * </ol>
- * That's it.  I wanted to keep the API as simple as possible, so there's no
- * need to specify which language the code is in, but if you wish, you can add
- * another class to the {@code <pre>} or {@code <code>} element to specify the
- * language, as in {@code <pre class="prettyprint lang-java">}.  Any class that
- * starts with "lang-" followed by a file extension, specifies the file type.
- * See the "lang-*.js" files in this directory for code that implements
- * per-language file handlers.
- * <p>
- * Change log:<br>
- * cbeust, 2006/08/22
- * <blockquote>
- *   Java annotations (start with "@") are now captured as literals ("lit")
- * </blockquote>
- * @requires console
- */
-
-// JSLint declarations
-/*global console, document, navigator, setTimeout, window */
-
-/**
- * Split {@code prettyPrint} into multiple timeouts so as not to interfere with
- * UI events.
- * If set to {@code false}, {@code prettyPrint()} is synchronous.
- */
-window['PR_SHOULD_USE_CONTINUATION'] = true;
-
-(function () {
-  // Keyword lists for various languages.
-  // We use things that coerce to strings to make them compact when minified
-  // and to defeat aggressive optimizers that fold large string constants.
-  var FLOW_CONTROL_KEYWORDS = ["break,continue,do,else,for,if,return,while"];
-  var C_KEYWORDS = [FLOW_CONTROL_KEYWORDS,"auto,case,char,const,default," + 
-      "double,enum,extern,float,goto,int,long,register,short,signed,sizeof," +
-      "static,struct,switch,typedef,union,unsigned,void,volatile"];
-  var COMMON_KEYWORDS = [C_KEYWORDS,"catch,class,delete,false,import," +
-      "new,operator,private,protected,public,this,throw,true,try,typeof"];
-  var CPP_KEYWORDS = [COMMON_KEYWORDS,"alignof,align_union,asm,axiom,bool," +
-      "concept,concept_map,const_cast,constexpr,decltype," +
-      "dynamic_cast,explicit,export,friend,inline,late_check," +
-      "mutable,namespace,nullptr,reinterpret_cast,static_assert,static_cast," +
-      "template,typeid,typename,using,virtual,where"];
-  var JAVA_KEYWORDS = [COMMON_KEYWORDS,
-      "abstract,boolean,byte,extends,final,finally,implements,import," +
-      "instanceof,null,native,package,strictfp,super,synchronized,throws," +
-      "transient"];
-  var CSHARP_KEYWORDS = [JAVA_KEYWORDS,
-      "as,base,by,checked,decimal,delegate,descending,dynamic,event," +
-      "fixed,foreach,from,group,implicit,in,interface,internal,into,is,lock," +
-      "object,out,override,orderby,params,partial,readonly,ref,sbyte,sealed," +
-      "stackalloc,string,select,uint,ulong,unchecked,unsafe,ushort,var"];
-  var COFFEE_KEYWORDS = "all,and,by,catch,class,else,extends,false,finally," +
-      "for,if,in,is,isnt,loop,new,no,not,null,of,off,on,or,return,super,then," +
-      "true,try,unless,until,when,while,yes";
-  var JSCRIPT_KEYWORDS = [COMMON_KEYWORDS,
-      "debugger,eval,export,function,get,null,set,undefined,var,with," +
-      "Infinity,NaN"];
-  var PERL_KEYWORDS = "caller,delete,die,do,dump,elsif,eval,exit,foreach,for," +
-      "goto,if,import,last,local,my,next,no,our,print,package,redo,require," +
-      "sub,undef,unless,until,use,wantarray,while,BEGIN,END";
-  var PYTHON_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "and,as,assert,class,def,del," +
-      "elif,except,exec,finally,from,global,import,in,is,lambda," +
-      "nonlocal,not,or,pass,print,raise,try,with,yield," +
-      "False,True,None"];
-  var RUBY_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "alias,and,begin,case,class," +
-      "def,defined,elsif,end,ensure,false,in,module,next,nil,not,or,redo," +
-      "rescue,retry,self,super,then,true,undef,unless,until,when,yield," +
-      "BEGIN,END"];
-  var SH_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "case,done,elif,esac,eval,fi," +
-      "function,in,local,set,then,until"];
-  var ALL_KEYWORDS = [
-      CPP_KEYWORDS, CSHARP_KEYWORDS, JSCRIPT_KEYWORDS, PERL_KEYWORDS +
-      PYTHON_KEYWORDS, RUBY_KEYWORDS, SH_KEYWORDS];
-  var C_TYPES = /^(DIR|FILE|vector|(de|priority_)?queue|list|stack|(const_)?iterator|(multi)?(set|map)|bitset|u?(int|float)\d*)/;
-
-  // token style names.  correspond to css classes
-  /**
-   * token style for a string literal
-   * @const
-   */
-  var PR_STRING = 'str';
-  /**
-   * token style for a keyword
-   * @const
-   */
-  var PR_KEYWORD = 'kwd';
-  /**
-   * token style for a comment
-   * @const
-   */
-  var PR_COMMENT = 'com';
-  /**
-   * token style for a type
-   * @const
-   */
-  var PR_TYPE = 'typ';
-  /**
-   * token style for a literal value.  e.g. 1, null, true.
-   * @const
-   */
-  var PR_LITERAL = 'lit';
-  /**
-   * token style for a punctuation string.
-   * @const
-   */
-  var PR_PUNCTUATION = 'pun';
-  /**
-   * token style for a punctuation string.
-   * @const
-   */
-  var PR_PLAIN = 'pln';
-
-  /**
-   * token style for an sgml tag.
-   * @const
-   */
-  var PR_TAG = 'tag';
-  /**
-   * token style for a markup declaration such as a DOCTYPE.
-   * @const
-   */
-  var PR_DECLARATION = 'dec';
-  /**
-   * token style for embedded source.
-   * @const
-   */
-  var PR_SOURCE = 'src';
-  /**
-   * token style for an sgml attribute name.
-   * @const
-   */
-  var PR_ATTRIB_NAME = 'atn';
-  /**
-   * token style for an sgml attribute value.
-   * @const
-   */
-  var PR_ATTRIB_VALUE = 'atv';
-
-  /**
-   * A class that indicates a section of markup that is not code, e.g. to allow
-   * embedding of line numbers within code listings.
-   * @const
-   */
-  var PR_NOCODE = 'nocode';
-
-
-
-/**
- * A set of tokens that can precede a regular expression literal in
- * javascript
- * http://web.archive.org/web/20070717142515/http://www.mozilla.org/js/language/js20/rationale/syntax.html
- * has the full list, but I've removed ones that might be problematic when
- * seen in languages that don't support regular expression literals.
- *
- * <p>Specifically, I've removed any keywords that can't precede a regexp
- * literal in a syntactically legal javascript program, and I've removed the
- * "in" keyword since it's not a keyword in many languages, and might be used
- * as a count of inches.
- *
- * <p>The link a above does not accurately describe EcmaScript rules since
- * it fails to distinguish between (a=++/b/i) and (a++/b/i) but it works
- * very well in practice.
- *
- * @private
- * @const
- */
-var REGEXP_PRECEDER_PATTERN = '(?:^^\\.?|[+-]|\\!|\\!=|\\!==|\\#|\\%|\\%=|&|&&|&&=|&=|\\(|\\*|\\*=|\\+=|\\,|\\-=|\\->|\\/|\\/=|:|::|\\;|<|<<|<<=|<=|=|==|===|>|>=|>>|>>=|>>>|>>>=|\\?|\\@|\\[|\\^|\\^=|\\^\\^|\\^\\^=|\\{|\\||\\|=|\\|\\||\\|\\|=|\\~|break|case|continue|delete|do|else|finally|instanceof|return|throw|try|typeof)\\s*';
-
-// CAVEAT: this does not properly handle the case where a regular
-// expression immediately follows another since a regular expression may
-// have flags for case-sensitivity and the like.  Having regexp tokens
-// adjacent is not valid in any language I'm aware of, so I'm punting.
-// TODO: maybe style special characters inside a regexp as punctuation.
-
-
-  /**
-   * Given a group of {@link RegExp}s, returns a {@code RegExp} that globally
-   * matches the union of the sets of strings matched by the input RegExp.
-   * Since it matches globally, if the input strings have a start-of-input
-   * anchor (/^.../), it is ignored for the purposes of unioning.
-   * @param {Array.<RegExp>} regexs non multiline, non-global regexs.
-   * @return {RegExp} a global regex.
-   */
-  function combinePrefixPatterns(regexs) {
-    var capturedGroupIndex = 0;
-  
-    var needToFoldCase = false;
-    var ignoreCase = false;
-    for (var i = 0, n = regexs.length; i < n; ++i) {
-      var regex = regexs[i];
-      if (regex.ignoreCase) {
-        ignoreCase = true;
-      } else if (/[a-z]/i.test(regex.source.replace(
-                     /\\u[0-9a-f]{4}|\\x[0-9a-f]{2}|\\[^ux]/gi, ''))) {
-        needToFoldCase = true;
-        ignoreCase = false;
-        break;
-      }
-    }
-  
-    var escapeCharToCodeUnit = {
-      'b': 8,
-      't': 9,
-      'n': 0xa,
-      'v': 0xb,
-      'f': 0xc,
-      'r': 0xd
-    };
-  
-    function decodeEscape(charsetPart) {
-      var cc0 = charsetPart.charCodeAt(0);
-      if (cc0 !== 92 /* \\ */) {
-        return cc0;
-      }
-      var c1 = charsetPart.charAt(1);
-      cc0 = escapeCharToCodeUnit[c1];
-      if (cc0) {
-        return cc0;
-      } else if ('0' <= c1 && c1 <= '7') {
-        return parseInt(charsetPart.substring(1), 8);
-      } else if (c1 === 'u' || c1 === 'x') {
-        return parseInt(charsetPart.substring(2), 16);
-      } else {
-        return charsetPart.charCodeAt(1);
-      }
-    }
-  
-    function encodeEscape(charCode) {
-      if (charCode < 0x20) {
-        return (charCode < 0x10 ? '\\x0' : '\\x') + charCode.toString(16);
-      }
-      var ch = String.fromCharCode(charCode);
-      if (ch === '\\' || ch === '-' || ch === '[' || ch === ']') {
-        ch = '\\' + ch;
-      }
-      return ch;
-    }
-  
-    function caseFoldCharset(charSet) {
-      var charsetParts = charSet.substring(1, charSet.length - 1).match(
-          new RegExp(
-              '\\\\u[0-9A-Fa-f]{4}'
-              + '|\\\\x[0-9A-Fa-f]{2}'
-              + '|\\\\[0-3][0-7]{0,2}'
-              + '|\\\\[0-7]{1,2}'
-              + '|\\\\[\\s\\S]'
-              + '|-'
-              + '|[^-\\\\]',
-              'g'));
-      var groups = [];
-      var ranges = [];
-      var inverse = charsetParts[0] === '^';
-      for (var i = inverse ? 1 : 0, n = charsetParts.length; i < n; ++i) {
-        var p = charsetParts[i];
-        if (/\\[bdsw]/i.test(p)) {  // Don't muck with named groups.
-          groups.push(p);
-        } else {
-          var start = decodeEscape(p);
-          var end;
-          if (i + 2 < n && '-' === charsetParts[i + 1]) {
-            end = decodeEscape(charsetParts[i + 2]);
-            i += 2;
-          } else {
-            end = start;
-          }
-          ranges.push([start, end]);
-          // If the range might intersect letters, then expand it.
-          // This case handling is too simplistic.
-          // It does not deal with non-latin case folding.
-          // It works for latin source code identifiers though.
-          if (!(end < 65 || start > 122)) {
-            if (!(end < 65 || start > 90)) {
-              ranges.push([Math.max(65, start) | 32, Math.min(end, 90) | 32]);
-            }
-            if (!(end < 97 || start > 122)) {
-              ranges.push([Math.max(97, start) & ~32, Math.min(end, 122) & ~32]);
-            }
-          }
-        }
-      }
-  
-      // [[1, 10], [3, 4], [8, 12], [14, 14], [16, 16], [17, 17]]
-      // -> [[1, 12], [14, 14], [16, 17]]
-      ranges.sort(function (a, b) { return (a[0] - b[0]) || (b[1]  - a[1]); });
-      var consolidatedRanges = [];
-      var lastRange = [NaN, NaN];
-      for (var i = 0; i < ranges.length; ++i) {
-        var range = ranges[i];
-        if (range[0] <= lastRange[1] + 1) {
-          lastRange[1] = Math.max(lastRange[1], range[1]);
-        } else {
-          consolidatedRanges.push(lastRange = range);
-        }
-      }
-  
-      var out = ['['];
-      if (inverse) { out.push('^'); }
-      out.push.apply(out, groups);
-      for (var i = 0; i < consolidatedRanges.length; ++i) {
-        var range = consolidatedRanges[i];
-        out.push(encodeEscape(range[0]));
-        if (range[1] > range[0]) {
-          if (range[1] + 1 > range[0]) { out.push('-'); }
-          out.push(encodeEscape(range[1]));
-        }
-      }
-      out.push(']');
-      return out.join('');
-    }
-  
-    function allowAnywhereFoldCaseAndRenumberGroups(regex) {
-      // Split into character sets, escape sequences, punctuation strings
-      // like ('(', '(?:', ')', '^'), and runs of characters that do not
-      // include any of the above.
-      var parts = regex.source.match(
-          new RegExp(
-              '(?:'
-              + '\\[(?:[^\\x5C\\x5D]|\\\\[\\s\\S])*\\]'  // a character set
-              + '|\\\\u[A-Fa-f0-9]{4}'  // a unicode escape
-              + '|\\\\x[A-Fa-f0-9]{2}'  // a hex escape
-              + '|\\\\[0-9]+'  // a back-reference or octal escape
-              + '|\\\\[^ux0-9]'  // other escape sequence
-              + '|\\(\\?[:!=]'  // start of a non-capturing group
-              + '|[\\(\\)\\^]'  // start/emd of a group, or line start
-              + '|[^\\x5B\\x5C\\(\\)\\^]+'  // run of other characters
-              + ')',
-              'g'));
-      var n = parts.length;
-  
-      // Maps captured group numbers to the number they will occupy in
-      // the output or to -1 if that has not been determined, or to
-      // undefined if they need not be capturing in the output.
-      var capturedGroups = [];
-  
-      // Walk over and identify back references to build the capturedGroups
-      // mapping.
-      for (var i = 0, groupIndex = 0; i < n; ++i) {
-        var p = parts[i];
-        if (p === '(') {
-          // groups are 1-indexed, so max group index is count of '('
-          ++groupIndex;
-        } else if ('\\' === p.charAt(0)) {
-          var decimalValue = +p.substring(1);
-          if (decimalValue && decimalValue <= groupIndex) {
-            capturedGroups[decimalValue] = -1;
-          }
-        }
-      }
-  
-      // Renumber groups and reduce capturing groups to non-capturing groups
-      // where possible.
-      for (var i = 1; i < capturedGroups.length; ++i) {
-        if (-1 === capturedGroups[i]) {
-          capturedGroups[i] = ++capturedGroupIndex;
-        }
-      }
-      for (var i = 0, groupIndex = 0; i < n; ++i) {
-        var p = parts[i];
-        if (p === '(') {
-          ++groupIndex;
-          if (capturedGroups[groupIndex] === undefined) {
-            parts[i] = '(?:';
-          }
-        } else if ('\\' === p.charAt(0)) {
-          var decimalValue = +p.substring(1);
-          if (decimalValue && decimalValue <= groupIndex) {
-            parts[i] = '\\' + capturedGroups[groupIndex];
-          }
-        }
-      }
-  
-      // Remove any prefix anchors so that the output will match anywhere.
-      // ^^ really does mean an anchored match though.
-      for (var i = 0, groupIndex = 0; i < n; ++i) {
-        if ('^' === parts[i] && '^' !== parts[i + 1]) { parts[i] = ''; }
-      }
-  
-      // Expand letters to groups to handle mixing of case-sensitive and
-      // case-insensitive patterns if necessary.
-      if (regex.ignoreCase && needToFoldCase) {
-        for (var i = 0; i < n; ++i) {
-          var p = parts[i];
-          var ch0 = p.charAt(0);
-          if (p.length >= 2 && ch0 === '[') {
-            parts[i] = caseFoldCharset(p);
-          } else if (ch0 !== '\\') {
-            // TODO: handle letters in numeric escapes.
-            parts[i] = p.replace(
-                /[a-zA-Z]/g,
-                function (ch) {
-                  var cc = ch.charCodeAt(0);
-                  return '[' + String.fromCharCode(cc & ~32, cc | 32) + ']';
-                });
-          }
-        }
-      }
-  
-      return parts.join('');
-    }
-  
-    var rewritten = [];
-    for (var i = 0, n = regexs.length; i < n; ++i) {
-      var regex = regexs[i];
-      if (regex.global || regex.multiline) { throw new Error('' + regex); }
-      rewritten.push(
-          '(?:' + allowAnywhereFoldCaseAndRenumberGroups(regex) + ')');
-    }
-  
-    return new RegExp(rewritten.join('|'), ignoreCase ? 'gi' : 'g');
-  }
-
-
-  /**
-   * Split markup into a string of source code and an array mapping ranges in
-   * that string to the text nodes in which they appear.
-   *
-   * <p>
-   * The HTML DOM structure:</p>
-   * <pre>
-   * (Element   "p"
-   *   (Element "b"
-   *     (Text  "print "))       ; #1
-   *   (Text    "'Hello '")      ; #2
-   *   (Element "br")            ; #3
-   *   (Text    "  + 'World';")) ; #4
-   * </pre>
-   * <p>
-   * corresponds to the HTML
-   * {@code <p><b>print </b>'Hello '<br>  + 'World';</p>}.</p>
-   *
-   * <p>
-   * It will produce the output:</p>
-   * <pre>
-   * {
-   *   sourceCode: "print 'Hello '\n  + 'World';",
-   *   //                 1         2
-   *   //       012345678901234 5678901234567
-   *   spans: [0, #1, 6, #2, 14, #3, 15, #4]
-   * }
-   * </pre>
-   * <p>
-   * where #1 is a reference to the {@code "print "} text node above, and so
-   * on for the other text nodes.
-   * </p>
-   *
-   * <p>
-   * The {@code} spans array is an array of pairs.  Even elements are the start
-   * indices of substrings, and odd elements are the text nodes (or BR elements)
-   * that contain the text for those substrings.
-   * Substrings continue until the next index or the end of the source.
-   * </p>
-   *
-   * @param {Node} node an HTML DOM subtree containing source-code.
-   * @return {Object} source code and the text nodes in which they occur.
-   */
-  function extractSourceSpans(node) {
-    var nocode = /(?:^|\s)nocode(?:\s|$)/;
-  
-    var chunks = [];
-    var length = 0;
-    var spans = [];
-    var k = 0;
-  
-    var whitespace;
-    if (node.currentStyle) {
-      whitespace = node.currentStyle.whiteSpace;
-    } else if (window.getComputedStyle) {
-      whitespace = document.defaultView.getComputedStyle(node, null)
-          .getPropertyValue('white-space');
-    }
-    var isPreformatted = whitespace && 'pre' === whitespace.substring(0, 3);
-  
-    function walk(node) {
-      switch (node.nodeType) {
-        case 1:  // Element
-          if (nocode.test(node.className)) { return; }
-          for (var child = node.firstChild; child; child = child.nextSibling) {
-            walk(child);
-          }
-          var nodeName = node.nodeName;
-          if ('BR' === nodeName || 'LI' === nodeName) {
-            chunks[k] = '\n';
-            spans[k << 1] = length++;
-            spans[(k++ << 1) | 1] = node;
-          }
-          break;
-        case 3: case 4:  // Text
-          var text = node.nodeValue;
-          if (text.length) {
-            if (!isPreformatted) {
-              text = text.replace(/[ \t\r\n]+/g, ' ');
-            } else {
-              text = text.replace(/\r\n?/g, '\n');  // Normalize newlines.
-            }
-            // TODO: handle tabs here?
-            chunks[k] = text;
-            spans[k << 1] = length;
-            length += text.length;
-            spans[(k++ << 1) | 1] = node;
-          }
-          break;
-      }
-    }
-  
-    walk(node);
-  
-    return {
-      sourceCode: chunks.join('').replace(/\n$/, ''),
-      spans: spans
-    };
-  }
-
-
-  /**
-   * Apply the given language handler to sourceCode and add the resulting
-   * decorations to out.
-   * @param {number} basePos the index of sourceCode within the chunk of source
-   *    whose decorations are already present on out.
-   */
-  function appendDecorations(basePos, sourceCode, langHandler, out) {
-    if (!sourceCode) { return; }
-    var job = {
-      sourceCode: sourceCode,
-      basePos: basePos
-    };
-    langHandler(job);
-    out.push.apply(out, job.decorations);
-  }
-
-  var notWs = /\S/;
-
-  /**
-   * Given an element, if it contains only one child element and any text nodes
-   * it contains contain only space characters, return the sole child element.
-   * Otherwise returns undefined.
-   * <p>
-   * This is meant to return the CODE element in {@code <pre><code ...>} when
-   * there is a single child element that contains all the non-space textual
-   * content, but not to return anything where there are multiple child elements
-   * as in {@code <pre><code>...</code><code>...</code></pre>} or when there
-   * is textual content.
-   */
-  function childContentWrapper(element) {
-    var wrapper = undefined;
-    for (var c = element.firstChild; c; c = c.nextSibling) {
-      var type = c.nodeType;
-      wrapper = (type === 1)  // Element Node
-          ? (wrapper ? element : c)
-          : (type === 3)  // Text Node
-          ? (notWs.test(c.nodeValue) ? element : wrapper)
-          : wrapper;
-    }
-    return wrapper === element ? undefined : wrapper;
-  }
-
-  /** Given triples of [style, pattern, context] returns a lexing function,
-    * The lexing function interprets the patterns to find token boundaries and
-    * returns a decoration list of the form
-    * [index_0, style_0, index_1, style_1, ..., index_n, style_n]
-    * where index_n is an index into the sourceCode, and style_n is a style
-    * constant like PR_PLAIN.  index_n-1 <= index_n, and style_n-1 applies to
-    * all characters in sourceCode[index_n-1:index_n].
-    *
-    * The stylePatterns is a list whose elements have the form
-    * [style : string, pattern : RegExp, DEPRECATED, shortcut : string].
-    *
-    * Style is a style constant like PR_PLAIN, or can be a string of the
-    * form 'lang-FOO', where FOO is a language extension describing the
-    * language of the portion of the token in $1 after pattern executes.
-    * E.g., if style is 'lang-lisp', and group 1 contains the text
-    * '(hello (world))', then that portion of the token will be passed to the
-    * registered lisp handler for formatting.
-    * The text before and after group 1 will be restyled using this decorator
-    * so decorators should take care that this doesn't result in infinite
-    * recursion.  For example, the HTML lexer rule for SCRIPT elements looks
-    * something like ['lang-js', /<[s]cript>(.+?)<\/script>/].  This may match
-    * '<script>foo()<\/script>', which would cause the current decorator to
-    * be called with '<script>' which would not match the same rule since
-    * group 1 must not be empty, so it would be instead styled as PR_TAG by
-    * the generic tag rule.  The handler registered for the 'js' extension would
-    * then be called with 'foo()', and finally, the current decorator would
-    * be called with '<\/script>' which would not match the original rule and
-    * so the generic tag rule would identify it as a tag.
-    *
-    * Pattern must only match prefixes, and if it matches a prefix, then that
-    * match is considered a token with the same style.
-    *
-    * Context is applied to the last non-whitespace, non-comment token
-    * recognized.
-    *
-    * Shortcut is an optional string of characters, any of which, if the first
-    * character, gurantee that this pattern and only this pattern matches.
-    *
-    * @param {Array} shortcutStylePatterns patterns that always start with
-    *   a known character.  Must have a shortcut string.
-    * @param {Array} fallthroughStylePatterns patterns that will be tried in
-    *   order if the shortcut ones fail.  May have shortcuts.
-    *
-    * @return {function (Object)} a
-    *   function that takes source code and returns a list of decorations.
-    */
-  function createSimpleLexer(shortcutStylePatterns, fallthroughStylePatterns) {
-    var shortcuts = {};
-    var tokenizer;
-    (function () {
-      var allPatterns = shortcutStylePatterns.concat(fallthroughStylePatterns);
-      var allRegexs = [];
-      var regexKeys = {};
-      for (var i = 0, n = allPatterns.length; i < n; ++i) {
-        var patternParts = allPatterns[i];
-        var shortcutChars = patternParts[3];
-        if (shortcutChars) {
-          for (var c = shortcutChars.length; --c >= 0;) {
-            shortcuts[shortcutChars.charAt(c)] = patternParts;
-          }
-        }
-        var regex = patternParts[1];
-        var k = '' + regex;
-        if (!regexKeys.hasOwnProperty(k)) {
-          allRegexs.push(regex);
-          regexKeys[k] = null;
-        }
-      }
-      allRegexs.push(/[\0-\uffff]/);
-      tokenizer = combinePrefixPatterns(allRegexs);
-    })();
-
-    var nPatterns = fallthroughStylePatterns.length;
-
-    /**
-     * Lexes job.sourceCode and produces an output array job.decorations of
-     * style classes preceded by the position at which they start in
-     * job.sourceCode in order.
-     *
-     * @param {Object} job an object like <pre>{
-     *    sourceCode: {string} sourceText plain text,
-     *    basePos: {int} position of job.sourceCode in the larger chunk of
-     *        sourceCode.
-     * }</pre>
-     */
-    var decorate = function (job) {
-      var sourceCode = job.sourceCode, basePos = job.basePos;
-      /** Even entries are positions in source in ascending order.  Odd enties
-        * are style markers (e.g., PR_COMMENT) that run from that position until
-        * the end.
-        * @type {Array.<number|string>}
-        */
-      var decorations = [basePos, PR_PLAIN];
-      var pos = 0;  // index into sourceCode
-      var tokens = sourceCode.match(tokenizer) || [];
-      var styleCache = {};
-
-      for (var ti = 0, nTokens = tokens.length; ti < nTokens; ++ti) {
-        var token = tokens[ti];
-        var style = styleCache[token];
-        var match = void 0;
-
-        var isEmbedded;
-        if (typeof style === 'string') {
-          isEmbedded = false;
-        } else {
-          var patternParts = shortcuts[token.charAt(0)];
-          if (patternParts) {
-            match = token.match(patternParts[1]);
-            style = patternParts[0];
-          } else {
-            for (var i = 0; i < nPatterns; ++i) {
-              patternParts = fallthroughStylePatterns[i];
-              match = token.match(patternParts[1]);
-              if (match) {
-                style = patternParts[0];
-                break;
-              }
-            }
-
-            if (!match) {  // make sure that we make progress
-              style = PR_PLAIN;
-            }
-          }
-
-          isEmbedded = style.length >= 5 && 'lang-' === style.substring(0, 5);
-          if (isEmbedded && !(match && typeof match[1] === 'string')) {
-            isEmbedded = false;
-            style = PR_SOURCE;
-          }
-
-          if (!isEmbedded) { styleCache[token] = style; }
-        }
-
-        var tokenStart = pos;
-        pos += token.length;
-
-        if (!isEmbedded) {
-          decorations.push(basePos + tokenStart, style);
-        } else {  // Treat group 1 as an embedded block of source code.
-          var embeddedSource = match[1];
-          var embeddedSourceStart = token.indexOf(embeddedSource);
-          var embeddedSourceEnd = embeddedSourceStart + embeddedSource.length;
-          if (match[2]) {
-            // If embeddedSource can be blank, then it would match at the
-            // beginning which would cause us to infinitely recurse on the
-            // entire token, so we catch the right context in match[2].
-            embeddedSourceEnd = token.length - match[2].length;
-            embeddedSourceStart = embeddedSourceEnd - embeddedSource.length;
-          }
-          var lang = style.substring(5);
-          // Decorate the left of the embedded source
-          appendDecorations(
-              basePos + tokenStart,
-              token.substring(0, embeddedSourceStart),
-              decorate, decorations);
-          // Decorate the embedded source
-          appendDecorations(
-              basePos + tokenStart + embeddedSourceStart,
-              embeddedSource,
-              langHandlerForExtension(lang, embeddedSource),
-              decorations);
-          // Decorate the right of the embedded section
-          appendDecorations(
-              basePos + tokenStart + embeddedSourceEnd,
-              token.substring(embeddedSourceEnd),
-              decorate, decorations);
-        }
-      }
-      job.decorations = decorations;
-    };
-    return decorate;
-  }
-
-  /** returns a function that produces a list of decorations from source text.
-    *
-    * This code treats ", ', and ` as string delimiters, and \ as a string
-    * escape.  It does not recognize perl's qq() style strings.
-    * It has no special handling for double delimiter escapes as in basic, or
-    * the tripled delimiters used in python, but should work on those regardless
-    * although in those cases a single string literal may be broken up into
-    * multiple adjacent string literals.
-    *
-    * It recognizes C, C++, and shell style comments.
-    *
-    * @param {Object} options a set of optional parameters.
-    * @return {function (Object)} a function that examines the source code
-    *     in the input job and builds the decoration list.
-    */
-  function sourceDecorator(options) {
-    var shortcutStylePatterns = [], fallthroughStylePatterns = [];
-    if (options['tripleQuotedStrings']) {
-      // '''multi-line-string''', 'single-line-string', and double-quoted
-      shortcutStylePatterns.push(
-          [PR_STRING,  /^(?:\'\'\'(?:[^\'\\]|\\[\s\S]|\'{1,2}(?=[^\']))*(?:\'\'\'|$)|\"\"\"(?:[^\"\\]|\\[\s\S]|\"{1,2}(?=[^\"]))*(?:\"\"\"|$)|\'(?:[^\\\']|\\[\s\S])*(?:\'|$)|\"(?:[^\\\"]|\\[\s\S])*(?:\"|$))/,
-           null, '\'"']);
-    } else if (options['multiLineStrings']) {
-      // 'multi-line-string', "multi-line-string"
-      shortcutStylePatterns.push(
-          [PR_STRING,  /^(?:\'(?:[^\\\']|\\[\s\S])*(?:\'|$)|\"(?:[^\\\"]|\\[\s\S])*(?:\"|$)|\`(?:[^\\\`]|\\[\s\S])*(?:\`|$))/,
-           null, '\'"`']);
-    } else {
-      // 'single-line-string', "single-line-string"
-      shortcutStylePatterns.push(
-          [PR_STRING,
-           /^(?:\'(?:[^\\\'\r\n]|\\.)*(?:\'|$)|\"(?:[^\\\"\r\n]|\\.)*(?:\"|$))/,
-           null, '"\'']);
-    }
-    if (options['verbatimStrings']) {
-      // verbatim-string-literal production from the C# grammar.  See issue 93.
-      fallthroughStylePatterns.push(
-          [PR_STRING, /^@\"(?:[^\"]|\"\")*(?:\"|$)/, null]);
-    }
-    var hc = options['hashComments'];
-    if (hc) {
-      if (options['cStyleComments']) {
-        if (hc > 1) {  // multiline hash comments
-          shortcutStylePatterns.push(
-              [PR_COMMENT, /^#(?:##(?:[^#]|#(?!##))*(?:###|$)|.*)/, null, '#']);
-        } else {
-          // Stop C preprocessor declarations at an unclosed open comment
-          shortcutStylePatterns.push(
-              [PR_COMMENT, /^#(?:(?:define|elif|else|endif|error|ifdef|include|ifndef|line|pragma|undef|warning)\b|[^\r\n]*)/,
-               null, '#']);
-        }
-        fallthroughStylePatterns.push(
-            [PR_STRING,
-             /^<(?:(?:(?:\.\.\/)*|\/?)(?:[\w-]+(?:\/[\w-]+)+)?[\w-]+\.h|[a-z]\w*)>/,
-             null]);
-      } else {
-        shortcutStylePatterns.push([PR_COMMENT, /^#[^\r\n]*/, null, '#']);
-      }
-    }
-    if (options['cStyleComments']) {
-      fallthroughStylePatterns.push([PR_COMMENT, /^\/\/[^\r\n]*/, null]);
-      fallthroughStylePatterns.push(
-          [PR_COMMENT, /^\/\*[\s\S]*?(?:\*\/|$)/, null]);
-    }
-    if (options['regexLiterals']) {
-      /**
-       * @const
-       */
-      var REGEX_LITERAL = (
-          // A regular expression literal starts with a slash that is
-          // not followed by * or / so that it is not confused with
-          // comments.
-          '/(?=[^/*])'
-          // and then contains any number of raw characters,
-          + '(?:[^/\\x5B\\x5C]'
-          // escape sequences (\x5C),
-          +    '|\\x5C[\\s\\S]'
-          // or non-nesting character sets (\x5B\x5D);
-          +    '|\\x5B(?:[^\\x5C\\x5D]|\\x5C[\\s\\S])*(?:\\x5D|$))+'
-          // finally closed by a /.
-          + '/');
-      fallthroughStylePatterns.push(
-          ['lang-regex',
-           new RegExp('^' + REGEXP_PRECEDER_PATTERN + '(' + REGEX_LITERAL + ')')
-           ]);
-    }
-
-    var types = options['types'];
-    if (types) {
-      fallthroughStylePatterns.push([PR_TYPE, types]);
-    }
-
-    var keywords = ("" + options['keywords']).replace(/^ | $/g, '');
-    if (keywords.length) {
-      fallthroughStylePatterns.push(
-          [PR_KEYWORD,
-           new RegExp('^(?:' + keywords.replace(/[\s,]+/g, '|') + ')\\b'),
-           null]);
-    }
-
-    shortcutStylePatterns.push([PR_PLAIN,       /^\s+/, null, ' \r\n\t\xA0']);
-    fallthroughStylePatterns.push(
-        // TODO(mikesamuel): recognize non-latin letters and numerals in idents
-        [PR_LITERAL,     /^@[a-z_$][a-z_$@0-9]*/i, null],
-        [PR_TYPE,        /^(?:[@_]?[A-Z]+[a-z][A-Za-z_$@0-9]*|\w+_t\b)/, null],
-        [PR_PLAIN,       /^[a-z_$][a-z_$@0-9]*/i, null],
-        [PR_LITERAL,
-         new RegExp(
-             '^(?:'
-             // A hex number
-             + '0x[a-f0-9]+'
-             // or an octal or decimal number,
-             + '|(?:\\d(?:_\\d+)*\\d*(?:\\.\\d*)?|\\.\\d\\+)'
-             // possibly in scientific notation
-             + '(?:e[+\\-]?\\d+)?'
-             + ')'
-             // with an optional modifier like UL for unsigned long
-             + '[a-z]*', 'i'),
-         null, '0123456789'],
-        // Don't treat escaped quotes in bash as starting strings.  See issue 144.
-        [PR_PLAIN,       /^\\[\s\S]?/, null],
-        [PR_PUNCTUATION, /^.[^\s\w\.$@\'\"\`\/\#\\]*/, null]);
-
-    return createSimpleLexer(shortcutStylePatterns, fallthroughStylePatterns);
-  }
-
-  var decorateSource = sourceDecorator({
-        'keywords': ALL_KEYWORDS,
-        'hashComments': true,
-        'cStyleComments': true,
-        'multiLineStrings': true,
-        'regexLiterals': true
-      });
-
-  /**
-   * Given a DOM subtree, wraps it in a list, and puts each line into its own
-   * list item.
-   *
-   * @param {Node} node modified in place.  Its content is pulled into an
-   *     HTMLOListElement, and each line is moved into a separate list item.
-   *     This requires cloning elements, so the input might not have unique
-   *     IDs after numbering.
-   */
-  function numberLines(node, opt_startLineNum) {
-    var nocode = /(?:^|\s)nocode(?:\s|$)/;
-    var lineBreak = /\r\n?|\n/;
-  
-    var document = node.ownerDocument;
-  
-    var whitespace;
-    if (node.currentStyle) {
-      whitespace = node.currentStyle.whiteSpace;
-    } else if (window.getComputedStyle) {
-      whitespace = document.defaultView.getComputedStyle(node, null)
-          .getPropertyValue('white-space');
-    }
-    // If it's preformatted, then we need to split lines on line breaks
-    // in addition to <BR>s.
-    var isPreformatted = whitespace && 'pre' === whitespace.substring(0, 3);
-  
-    var li = document.createElement('LI');
-    while (node.firstChild) {
-      li.appendChild(node.firstChild);
-    }
-    // An array of lines.  We split below, so this is initialized to one
-    // un-split line.
-    var listItems = [li];
-  
-    function walk(node) {
-      switch (node.nodeType) {
-        case 1:  // Element
-          if (nocode.test(node.className)) { break; }
-          if ('BR' === node.nodeName) {
-            breakAfter(node);
-            // Discard the <BR> since it is now flush against a </LI>.
-            if (node.parentNode) {
-              node.parentNode.removeChild(node);
-            }
-          } else {
-            for (var child = node.firstChild; child; child = child.nextSibling) {
-              walk(child);
-            }
-          }
-          break;
-        case 3: case 4:  // Text
-          if (isPreformatted) {
-            var text = node.nodeValue;
-            var match = text.match(lineBreak);
-            if (match) {
-              var firstLine = text.substring(0, match.index);
-              node.nodeValue = firstLine;
-              var tail = text.substring(match.index + match[0].length);
-              if (tail) {
-                var parent = node.parentNode;
-                parent.insertBefore(
-                    document.createTextNode(tail), node.nextSibling);
-              }
-              breakAfter(node);
-              if (!firstLine) {
-                // Don't leave blank text nodes in the DOM.
-                node.parentNode.removeChild(node);
-              }
-            }
-          }
-          break;
-      }
-    }
-  
-    // Split a line after the given node.
-    function breakAfter(lineEndNode) {
-      // If there's nothing to the right, then we can skip ending the line
-      // here, and move root-wards since splitting just before an end-tag
-      // would require us to create a bunch of empty copies.
-      while (!lineEndNode.nextSibling) {
-        lineEndNode = lineEndNode.parentNode;
-        if (!lineEndNode) { return; }
-      }
-  
-      function breakLeftOf(limit, copy) {
-        // Clone shallowly if this node needs to be on both sides of the break.
-        var rightSide = copy ? limit.cloneNode(false) : limit;
-        var parent = limit.parentNode;
-        if (parent) {
-          // We clone the parent chain.
-          // This helps us resurrect important styling elements that cross lines.
-          // E.g. in <i>Foo<br>Bar</i>
-          // should be rewritten to <li><i>Foo</i></li><li><i>Bar</i></li>.
-          var parentClone = breakLeftOf(parent, 1);
-          // Move the clone and everything to the right of the original
-          // onto the cloned parent.
-          var next = limit.nextSibling;
-          parentClone.appendChild(rightSide);
-          for (var sibling = next; sibling; sibling = next) {
-            next = sibling.nextSibling;
-            parentClone.appendChild(sibling);
-          }
-        }
-        return rightSide;
-      }
-  
-      var copiedListItem = breakLeftOf(lineEndNode.nextSibling, 0);
-  
-      // Walk the parent chain until we reach an unattached LI.
-      for (var parent;
-           // Check nodeType since IE invents document fragments.
-           (parent = copiedListItem.parentNode) && parent.nodeType === 1;) {
-        copiedListItem = parent;
-      }
-      // Put it on the list of lines for later processing.
-      listItems.push(copiedListItem);
-    }
-  
-    // Split lines while there are lines left to split.
-    for (var i = 0;  // Number of lines that have been split so far.
-         i < listItems.length;  // length updated by breakAfter calls.
-         ++i) {
-      walk(listItems[i]);
-    }
-  
-    // Make sure numeric indices show correctly.
-    if (opt_startLineNum === (opt_startLineNum|0)) {
-      listItems[0].setAttribute('value', opt_startLineNum);
-    }
-  
-    var ol = document.createElement('OL');
-    ol.className = 'linenums';
-    var offset = Math.max(0, ((opt_startLineNum - 1 /* zero index */)) | 0) || 0;
-    for (var i = 0, n = listItems.length; i < n; ++i) {
-      li = listItems[i];
-      // Stick a class on the LIs so that stylesheets can
-      // color odd/even rows, or any other row pattern that
-      // is co-prime with 10.
-      li.className = 'L' + ((i + offset) % 10);
-      if (!li.firstChild) {
-        li.appendChild(document.createTextNode('\xA0'));
-      }
-      ol.appendChild(li);
-    }
-  
-    node.appendChild(ol);
-  }
-
-  /**
-   * Breaks {@code job.sourceCode} around style boundaries in
-   * {@code job.decorations} and modifies {@code job.sourceNode} in place.
-   * @param {Object} job like <pre>{
-   *    sourceCode: {string} source as plain text,
-   *    spans: {Array.<number|Node>} alternating span start indices into source
-   *       and the text node or element (e.g. {@code <BR>}) corresponding to that
-   *       span.
-   *    decorations: {Array.<number|string} an array of style classes preceded
-   *       by the position at which they start in job.sourceCode in order
-   * }</pre>
-   * @private
-   */
-  function recombineTagsAndDecorations(job) {
-    var isIE = /\bMSIE\b/.test(navigator.userAgent);
-    var newlineRe = /\n/g;
-  
-    var source = job.sourceCode;
-    var sourceLength = source.length;
-    // Index into source after the last code-unit recombined.
-    var sourceIndex = 0;
-  
-    var spans = job.spans;
-    var nSpans = spans.length;
-    // Index into spans after the last span which ends at or before sourceIndex.
-    var spanIndex = 0;
-  
-    var decorations = job.decorations;
-    var nDecorations = decorations.length;
-    // Index into decorations after the last decoration which ends at or before
-    // sourceIndex.
-    var decorationIndex = 0;
-  
-    // Remove all zero-length decorations.
-    decorations[nDecorations] = sourceLength;
-    var decPos, i;
-    for (i = decPos = 0; i < nDecorations;) {
-      if (decorations[i] !== decorations[i + 2]) {
-        decorations[decPos++] = decorations[i++];
-        decorations[decPos++] = decorations[i++];
-      } else {
-        i += 2;
-      }
-    }
-    nDecorations = decPos;
-  
-    // Simplify decorations.
-    for (i = decPos = 0; i < nDecorations;) {
-      var startPos = decorations[i];
-      // Conflate all adjacent decorations that use the same style.
-      var startDec = decorations[i + 1];
-      var end = i + 2;
-      while (end + 2 <= nDecorations && decorations[end + 1] === startDec) {
-        end += 2;
-      }
-      decorations[decPos++] = startPos;
-      decorations[decPos++] = startDec;
-      i = end;
-    }
-  
-    nDecorations = decorations.length = decPos;
-  
-    var decoration = null;
-    while (spanIndex < nSpans) {
-      var spanStart = spans[spanIndex];
-      var spanEnd = spans[spanIndex + 2] || sourceLength;
-  
-      var decStart = decorations[decorationIndex];
-      var decEnd = decorations[decorationIndex + 2] || sourceLength;
-  
-      var end = Math.min(spanEnd, decEnd);
-  
-      var textNode = spans[spanIndex + 1];
-      var styledText;
-      if (textNode.nodeType !== 1  // Don't muck with <BR>s or <LI>s
-          // Don't introduce spans around empty text nodes.
-          && (styledText = source.substring(sourceIndex, end))) {
-        // This may seem bizarre, and it is.  Emitting LF on IE causes the
-        // code to display with spaces instead of line breaks.
-        // Emitting Windows standard issue linebreaks (CRLF) causes a blank
-        // space to appear at the beginning of every line but the first.
-        // Emitting an old Mac OS 9 line separator makes everything spiffy.
-        if (isIE) { styledText = styledText.replace(newlineRe, '\r'); }
-        textNode.nodeValue = styledText;
-        var document = textNode.ownerDocument;
-        var span = document.createElement('SPAN');
-        span.className = decorations[decorationIndex + 1];
-        var parentNode = textNode.parentNode;
-        parentNode.replaceChild(span, textNode);
-        span.appendChild(textNode);
-        if (sourceIndex < spanEnd) {  // Split off a text node.
-          spans[spanIndex + 1] = textNode
-              // TODO: Possibly optimize by using '' if there's no flicker.
-              = document.createTextNode(source.substring(end, spanEnd));
-          parentNode.insertBefore(textNode, span.nextSibling);
-        }
-      }
-  
-      sourceIndex = end;
-  
-      if (sourceIndex >= spanEnd) {
-        spanIndex += 2;
-      }
-      if (sourceIndex >= decEnd) {
-        decorationIndex += 2;
-      }
-    }
-  }
-
-
-  /** Maps language-specific file extensions to handlers. */
-  var langHandlerRegistry = {};
-  /** Register a language handler for the given file extensions.
-    * @param {function (Object)} handler a function from source code to a list
-    *      of decorations.  Takes a single argument job which describes the
-    *      state of the computation.   The single parameter has the form
-    *      {@code {
-    *        sourceCode: {string} as plain text.
-    *        decorations: {Array.<number|string>} an array of style classes
-    *                     preceded by the position at which they start in
-    *                     job.sourceCode in order.
-    *                     The language handler should assigned this field.
-    *        basePos: {int} the position of source in the larger source chunk.
-    *                 All positions in the output decorations array are relative
-    *                 to the larger source chunk.
-    *      } }
-    * @param {Array.<string>} fileExtensions
-    */
-  function registerLangHandler(handler, fileExtensions) {
-    for (var i = fileExtensions.length; --i >= 0;) {
-      var ext = fileExtensions[i];
-      if (!langHandlerRegistry.hasOwnProperty(ext)) {
-        langHandlerRegistry[ext] = handler;
-      } else if (window['console']) {
-        console['warn']('cannot override language handler %s', ext);
-      }
-    }
-  }
-  function langHandlerForExtension(extension, source) {
-    if (!(extension && langHandlerRegistry.hasOwnProperty(extension))) {
-      // Treat it as markup if the first non whitespace character is a < and
-      // the last non-whitespace character is a >.
-      extension = /^\s*</.test(source)
-          ? 'default-markup'
-          : 'default-code';
-    }
-    return langHandlerRegistry[extension];
-  }
-  registerLangHandler(decorateSource, ['default-code']);
-  registerLangHandler(
-      createSimpleLexer(
-          [],
-          [
-           [PR_PLAIN,       /^[^<?]+/],
-           [PR_DECLARATION, /^<!\w[^>]*(?:>|$)/],
-           [PR_COMMENT,     /^<\!--[\s\S]*?(?:-\->|$)/],
-           // Unescaped content in an unknown language
-           ['lang-',        /^<\?([\s\S]+?)(?:\?>|$)/],
-           ['lang-',        /^<%([\s\S]+?)(?:%>|$)/],
-           [PR_PUNCTUATION, /^(?:<[%?]|[%?]>)/],
-           ['lang-',        /^<xmp\b[^>]*>([\s\S]+?)<\/xmp\b[^>]*>/i],
-           // Unescaped content in javascript.  (Or possibly vbscript).
-           ['lang-js',      /^<script\b[^>]*>([\s\S]*?)(<\/script\b[^>]*>)/i],
-           // Contains unescaped stylesheet content
-           ['lang-css',     /^<style\b[^>]*>([\s\S]*?)(<\/style\b[^>]*>)/i],
-           ['lang-in.tag',  /^(<\/?[a-z][^<>]*>)/i]
-          ]),
-      ['default-markup', 'htm', 'html', 'mxml', 'xhtml', 'xml', 'xsl']);
-  registerLangHandler(
-      createSimpleLexer(
-          [
-           [PR_PLAIN,        /^[\s]+/, null, ' \t\r\n'],
-           [PR_ATTRIB_VALUE, /^(?:\"[^\"]*\"?|\'[^\']*\'?)/, null, '\"\'']
-           ],
-          [
-           [PR_TAG,          /^^<\/?[a-z](?:[\w.:-]*\w)?|\/?>$/i],
-           [PR_ATTRIB_NAME,  /^(?!style[\s=]|on)[a-z](?:[\w:-]*\w)?/i],
-           ['lang-uq.val',   /^=\s*([^>\'\"\s]*(?:[^>\'\"\s\/]|\/(?=\s)))/],
-           [PR_PUNCTUATION,  /^[=<>\/]+/],
-           ['lang-js',       /^on\w+\s*=\s*\"([^\"]+)\"/i],
-           ['lang-js',       /^on\w+\s*=\s*\'([^\']+)\'/i],
-           ['lang-js',       /^on\w+\s*=\s*([^\"\'>\s]+)/i],
-           ['lang-css',      /^style\s*=\s*\"([^\"]+)\"/i],
-           ['lang-css',      /^style\s*=\s*\'([^\']+)\'/i],
-           ['lang-css',      /^style\s*=\s*([^\"\'>\s]+)/i]
-           ]),
-      ['in.tag']);
-  registerLangHandler(
-      createSimpleLexer([], [[PR_ATTRIB_VALUE, /^[\s\S]+/]]), ['uq.val']);
-  registerLangHandler(sourceDecorator({
-          'keywords': CPP_KEYWORDS,
-          'hashComments': true,
-          'cStyleComments': true,
-          'types': C_TYPES
-        }), ['c', 'cc', 'cpp', 'cxx', 'cyc', 'm']);
-  registerLangHandler(sourceDecorator({
-          'keywords': 'null,true,false'
-        }), ['json']);
-  registerLangHandler(sourceDecorator({
-          'keywords': CSHARP_KEYWORDS,
-          'hashComments': true,
-          'cStyleComments': true,
-          'verbatimStrings': true,
-          'types': C_TYPES
-        }), ['cs']);
-  registerLangHandler(sourceDecorator({
-          'keywords': JAVA_KEYWORDS,
-          'cStyleComments': true
-        }), ['java']);
-  registerLangHandler(sourceDecorator({
-          'keywords': SH_KEYWORDS,
-          'hashComments': true,
-          'multiLineStrings': true
-        }), ['bsh', 'csh', 'sh']);
-  registerLangHandler(sourceDecorator({
-          'keywords': PYTHON_KEYWORDS,
-          'hashComments': true,
-          'multiLineStrings': true,
-          'tripleQuotedStrings': true
-        }), ['cv', 'py']);
-  registerLangHandler(sourceDecorator({
-          'keywords': PERL_KEYWORDS,
-          'hashComments': true,
-          'multiLineStrings': true,
-          'regexLiterals': true
-        }), ['perl', 'pl', 'pm']);
-  registerLangHandler(sourceDecorator({
-          'keywords': RUBY_KEYWORDS,
-          'hashComments': true,
-          'multiLineStrings': true,
-          'regexLiterals': true
-        }), ['rb']);
-  registerLangHandler(sourceDecorator({
-          'keywords': JSCRIPT_KEYWORDS,
-          'cStyleComments': true,
-          'regexLiterals': true
-        }), ['js']);
-  registerLangHandler(sourceDecorator({
-          'keywords': COFFEE_KEYWORDS,
-          'hashComments': 3,  // ### style block comments
-          'cStyleComments': true,
-          'multilineStrings': true,
-          'tripleQuotedStrings': true,
-          'regexLiterals': true
-        }), ['coffee']);
-  registerLangHandler(createSimpleLexer([], [[PR_STRING, /^[\s\S]+/]]), ['regex']);
-
-  function applyDecorator(job) {
-    var opt_langExtension = job.langExtension;
-
-    try {
-      // Extract tags, and convert the source code to plain text.
-      var sourceAndSpans = extractSourceSpans(job.sourceNode);
-      /** Plain text. @type {string} */
-      var source = sourceAndSpans.sourceCode;
-      job.sourceCode = source;
-      job.spans = sourceAndSpans.spans;
-      job.basePos = 0;
-
-      // Apply the appropriate language handler
-      langHandlerForExtension(opt_langExtension, source)(job);
-
-      // Integrate the decorations and tags back into the source code,
-      // modifying the sourceNode in place.
-      recombineTagsAndDecorations(job);
-    } catch (e) {
-      if ('console' in window) {
-        console['log'](e && e['stack'] ? e['stack'] : e);
-      }
-    }
-  }
-
-  /**
-   * @param sourceCodeHtml {string} The HTML to pretty print.
-   * @param opt_langExtension {string} The language name to use.
-   *     Typically, a filename extension like 'cpp' or 'java'.
-   * @param opt_numberLines {number|boolean} True to number lines,
-   *     or the 1-indexed number of the first line in sourceCodeHtml.
-   */
-  function prettyPrintOne(sourceCodeHtml, opt_langExtension, opt_numberLines) {
-    var container = document.createElement('PRE');
-    // This could cause images to load and onload listeners to fire.
-    // E.g. <img onerror="alert(1337)" src="nosuchimage.png">.
-    // We assume that the inner HTML is from a trusted source.
-    container.innerHTML = sourceCodeHtml;
-    if (opt_numberLines) {
-      numberLines(container, opt_numberLines);
-    }
-
-    var job = {
-      langExtension: opt_langExtension,
-      numberLines: opt_numberLines,
-      sourceNode: container
-    };
-    applyDecorator(job);
-    return container.innerHTML;
-  }
-
-  function prettyPrint(opt_whenDone) {
-    function byTagName(tn) { return document.getElementsByTagName(tn); }
-    // fetch a list of nodes to rewrite
-    var codeSegments = [byTagName('pre'), byTagName('code'), byTagName('xmp')];
-    var elements = [];
-    for (var i = 0; i < codeSegments.length; ++i) {
-      for (var j = 0, n = codeSegments[i].length; j < n; ++j) {
-        elements.push(codeSegments[i][j]);
-      }
-    }
-    codeSegments = null;
-
-    var clock = Date;
-    if (!clock['now']) {
-      clock = { 'now': function () { return +(new Date); } };
-    }
-
-    // The loop is broken into a series of continuations to make sure that we
-    // don't make the browser unresponsive when rewriting a large page.
-    var k = 0;
-    var prettyPrintingJob;
-
-    var langExtensionRe = /\blang(?:uage)?-([\w.]+)(?!\S)/;
-    var prettyPrintRe = /\bprettyprint\b/;
-
-    function doWork() {
-      var endTime = (window['PR_SHOULD_USE_CONTINUATION'] ?
-                     clock['now']() + 250 /* ms */ :
-                     Infinity);
-      for (; k < elements.length && clock['now']() < endTime; k++) {
-        var cs = elements[k];
-        var className = cs.className;
-        if (className.indexOf('prettyprint') >= 0) {
-          // If the classes includes a language extensions, use it.
-          // Language extensions can be specified like
-          //     <pre class="prettyprint lang-cpp">
-          // the language extension "cpp" is used to find a language handler as
-          // passed to PR.registerLangHandler.
-          // HTML5 recommends that a language be specified using "language-"
-          // as the prefix instead.  Google Code Prettify supports both.
-          // http://dev.w3.org/html5/spec-author-view/the-code-element.html
-          var langExtension = className.match(langExtensionRe);
-          // Support <pre class="prettyprint"><code class="language-c">
-          var wrapper;
-          if (!langExtension && (wrapper = childContentWrapper(cs))
-              && "CODE" === wrapper.tagName) {
-            langExtension = wrapper.className.match(langExtensionRe);
-          }
-
-          if (langExtension) {
-            langExtension = langExtension[1];
-          }
-
-          // make sure this is not nested in an already prettified element
-          var nested = false;
-          for (var p = cs.parentNode; p; p = p.parentNode) {
-            if ((p.tagName === 'pre' || p.tagName === 'code' ||
-                 p.tagName === 'xmp') &&
-                p.className && p.className.indexOf('prettyprint') >= 0) {
-              nested = true;
-              break;
-            }
-          }
-          if (!nested) {
-            // Look for a class like linenums or linenums:<n> where <n> is the
-            // 1-indexed number of the first line.
-            var lineNums = cs.className.match(/\blinenums\b(?::(\d+))?/);
-            lineNums = lineNums
-                  ? lineNums[1] && lineNums[1].length ? +lineNums[1] : true
-                  : false;
-            if (lineNums) { numberLines(cs, lineNums); }
-
-            // do the pretty printing
-            prettyPrintingJob = {
-              langExtension: langExtension,
-              sourceNode: cs,
-              numberLines: lineNums
-            };
-            applyDecorator(prettyPrintingJob);
-          }
-        }
-      }
-      if (k < elements.length) {
-        // finish up in a continuation
-        setTimeout(doWork, 250);
-      } else if (opt_whenDone) {
-        opt_whenDone();
-      }
-    }
-
-    doWork();
-  }
-
-   /**
-    * Find all the {@code <pre>} and {@code <code>} tags in the DOM with
-    * {@code class=prettyprint} and prettify them.
-    *
-    * @param {Function?} opt_whenDone if specified, called when the last entry
-    *     has been finished.
-    */
-  window['prettyPrintOne'] = prettyPrintOne;
-   /**
-    * Pretty print a chunk of code.
-    *
-    * @param {string} sourceCodeHtml code as html
-    * @return {string} code as html, but prettier
-    */
-  window['prettyPrint'] = prettyPrint;
-   /**
-    * Contains functions for creating and registering new language handlers.
-    * @type {Object}
-    */
-  window['PR'] = {
-        'createSimpleLexer': createSimpleLexer,
-        'registerLangHandler': registerLangHandler,
-        'sourceDecorator': sourceDecorator,
-        'PR_ATTRIB_NAME': PR_ATTRIB_NAME,
-        'PR_ATTRIB_VALUE': PR_ATTRIB_VALUE,
-        'PR_COMMENT': PR_COMMENT,
-        'PR_DECLARATION': PR_DECLARATION,
-        'PR_KEYWORD': PR_KEYWORD,
-        'PR_LITERAL': PR_LITERAL,
-        'PR_NOCODE': PR_NOCODE,
-        'PR_PLAIN': PR_PLAIN,
-        'PR_PUNCTUATION': PR_PUNCTUATION,
-        'PR_SOURCE': PR_SOURCE,
-        'PR_STRING': PR_STRING,
-        'PR_TAG': PR_TAG,
-        'PR_TYPE': PR_TYPE
-      };
-})();
diff -r 010bfb3a3463 -r 56c4cd16d849 lib/assets/stylesheets/bootstrap-prettify.css
--- a/lib/assets/stylesheets/bootstrap-prettify.css	Sun May 12 02:53:14 2013 +0900
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,30 +0,0 @@
-.com { color: #93a1a1; }
-.lit { color: #195f91; }
-.pun, .opn, .clo { color: #93a1a1; }
-.fun { color: #dc322f; }
-.str, .atv { color: #D14; }
-.kwd, .prettyprint .tag { color: #1e347b; }
-.typ, .atn, .dec, .var { color: teal; }
-.pln { color: #48484c; }
-
-.prettyprint {
-  padding: 8px;
-  background-color: #f7f7f9;
-  border: 1px solid #e1e1e8;
-}
-.prettyprint.linenums {
-  -webkit-box-shadow: inset 40px 0 0 #fbfbfc, inset 41px 0 0 #ececf0;
-     -moz-box-shadow: inset 40px 0 0 #fbfbfc, inset 41px 0 0 #ececf0;
-          box-shadow: inset 40px 0 0 #fbfbfc, inset 41px 0 0 #ececf0;
-}
-
-/* Specify class=linenums on a pre to get line numbering */
-ol.linenums {
-  margin: 0 0 0 33px; /* IE indents via margin-left */
-}
-ol.linenums li {
-  padding-left: 12px;
-  color: #bebec5;
-  line-height: 20px;
-  text-shadow: 0 1px 0 #fff;
-}
\ No newline at end of file
diff -r 010bfb3a3463 -r 56c4cd16d849 vendor/assets/javascripts/jquery.autosize.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/assets/javascripts/jquery.autosize.js	Sun May 12 12:00:17 2013 +0900
@@ -0,0 +1,180 @@
+// Autosize 1.13 - jQuery plugin for textareas
+// (c) 2012 Jack Moore - jacklmoore.com
+// license: www.opensource.org/licenses/mit-license.php
+
+(function ($) {
+	var
+	defaults = {
+		className: 'autosizejs',
+		append: "",
+		callback: false
+	},
+	hidden = 'hidden',
+	borderBox = 'border-box',
+	lineHeight = 'lineHeight',
+	copy = '<textarea tabindex="-1" style="position:absolute; top:-9999px; left:-9999px; right:auto; bottom:auto; -moz-box-sizing:content-box; -webkit-box-sizing:content-box; box-sizing:content-box; word-wrap:break-word; height:0 !important; min-height:0 !important; overflow:hidden;"/>',
+	// line-height is omitted because IE7/IE8 doesn't return the correct value.
+	copyStyle = [
+		'fontFamily',
+		'fontSize',
+		'fontWeight',
+		'fontStyle',
+		'letterSpacing',
+		'textTransform',
+		'wordSpacing',
+		'textIndent'
+	],
+	oninput = 'oninput',
+	onpropertychange = 'onpropertychange',
+	test = $(copy)[0];
+
+	// For testing support in old FireFox
+	test.setAttribute(oninput, "return");
+
+	if ($.isFunction(test[oninput]) || onpropertychange in test) {
+
+		// test that line-height can be accurately copied to avoid
+		// incorrect value reporting in old IE and old Opera
+		$(test).css(lineHeight, '99px');
+		if ($(test).css(lineHeight) === '99px') {
+			copyStyle.push(lineHeight);
+		}
+
+		$.fn.autosize = function (options) {
+			options = $.extend({}, defaults, options || {});
+
+			return this.each(function () {
+				var
+				ta = this,
+				$ta = $(ta),
+				mirror,
+				minHeight = $ta.height(),
+				maxHeight = parseInt($ta.css('maxHeight'), 10),
+				active,
+				i = copyStyle.length,
+				resize,
+				boxOffset = 0,
+				value = ta.value,
+				callback = $.isFunction(options.callback);
+
+				if ($ta.css('box-sizing') === borderBox || $ta.css('-moz-box-sizing') === borderBox || $ta.css('-webkit-box-sizing') === borderBox){
+					boxOffset = $ta.outerHeight() - $ta.height();
+				}
+
+				if ($ta.data('mirror') || $ta.data('ismirror')) {
+					// if autosize has already been applied, exit.
+					// if autosize is being applied to a mirror element, exit.
+					return;
+				} else {
+					mirror = $(copy).data('ismirror', true).addClass(options.className)[0];
+
+					resize = $ta.css('resize') === 'none' ? 'none' : 'horizontal';
+
+					$ta.data('mirror', $(mirror)).css({
+						overflow: hidden,
+						overflowY: hidden,
+						wordWrap: 'break-word',
+						resize: resize
+					});
+				}
+
+				// Opera returns '-1px' when max-height is set to 'none'.
+				maxHeight = maxHeight && maxHeight > 0 ? maxHeight : 9e4;
+
+				// Using mainly bare JS in this function because it is going
+				// to fire very often while typing, and needs to very efficient.
+				function adjust() {
+					var height, overflow, original;
+
+					// the active flag keeps IE from tripping all over itself.  Otherwise
+					// actions in the adjust function will cause IE to call adjust again.
+					if (!active) {
+						active = true;
+						mirror.value = ta.value + options.append;
+						mirror.style.overflowY = ta.style.overflowY;
+						original = parseInt(ta.style.height,10);
+
+						// Update the width in case the original textarea width has changed
+						mirror.style.width = $ta.css('width');
+
+						// Needed for IE to reliably return the correct scrollHeight
+						mirror.scrollTop = 0;
+
+						// Set a very high value for scrollTop to be sure the
+						// mirror is scrolled all the way to the bottom.
+						mirror.scrollTop = 9e4;
+
+						height = mirror.scrollTop;
+						overflow = hidden;
+						if (height > maxHeight) {
+							height = maxHeight;
+							overflow = 'scroll';
+						} else if (height < minHeight) {
+							height = minHeight;
+						}
+						height += boxOffset;
+						ta.style.overflowY = overflow;
+
+						if (original !== height) {
+							ta.style.height = height + 'px';
+							if (callback) {
+								options.callback.call(ta);
+							}
+						}
+						
+						// This small timeout gives IE a chance to draw it's scrollbar
+						// before adjust can be run again (prevents an infinite loop).
+						setTimeout(function () {
+							active = false;
+						}, 1);
+					}
+				}
+
+				// mirror is a duplicate textarea located off-screen that
+				// is automatically updated to contain the same text as the
+				// original textarea.  mirror always has a height of 0.
+				// This gives a cross-browser supported way getting the actual
+				// height of the text, through the scrollTop property.
+				while (i--) {
+					mirror.style[copyStyle[i]] = $ta.css(copyStyle[i]);
+				}
+
+				$('body').append(mirror);
+
+				if (onpropertychange in ta) {
+					if (oninput in ta) {
+						// Detects IE9.  IE9 does not fire onpropertychange or oninput for deletions,
+						// so binding to onkeyup to catch most of those occassions.  There is no way that I
+						// know of to detect something like 'cut' in IE9.
+						ta[oninput] = ta.onkeyup = adjust;
+					} else {
+						// IE7 / IE8
+						ta[onpropertychange] = adjust;
+					}
+				} else {
+					// Modern Browsers
+					ta[oninput] = adjust;
+
+					// The textarea overflow is now hidden.  But Chrome doesn't reflow the text after the scrollbars are removed.
+					// This is a hack to get Chrome to reflow it's text.
+					ta.value = '';
+					ta.value = value;
+				}
+
+				$(window).resize(adjust);
+
+				// Allow for manual triggering if needed.
+				$ta.bind('autosize', adjust);
+
+				// Call adjust in case the textarea already contains text.
+				adjust();
+			});
+		};
+	} else {
+		// Makes no changes for older browsers (FireFox3- and Safari4-)
+		$.fn.autosize = function (callback) {
+			return this;
+		};
+	}
+
+}(window.jQuery || window.Zepto));
\ No newline at end of file
diff -r 010bfb3a3463 -r 56c4cd16d849 vendor/assets/javascripts/marked.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/assets/javascripts/marked.js	Sun May 12 12:00:17 2013 +0900
@@ -0,0 +1,781 @@
+/**
+ * marked - A markdown parser (https://github.com/chjj/marked)
+ * Copyright (c) 2011-2012, Christopher Jeffrey. (MIT Licensed)
+ */
+
+;(function() {
+
+/**
+ * Block-Level Grammar
+ */
+
+var block = {
+  newline: /^\n+/,
+  code: /^( {4}[^\n]+\n*)+/,
+  fences: noop,
+  hr: /^( *[-*_]){3,} *(?:\n+|$)/,
+  heading: /^ *(#{1,6}) *([^\n]+?) *#* *(?:\n+|$)/,
+  lheading: /^([^\n]+)\n *(=|-){3,} *\n*/,
+  blockquote: /^( *>[^\n]+(\n[^\n]+)*\n*)+/,
+  list: /^( *)(bull) [^\0]+?(?:hr|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
+  html: /^ *(?:comment|closed|closing) *(?:\n{2,}|\s*$)/,
+  def: /^ *\[([^\]]+)\]: *([^\s]+)(?: +["(]([^\n]+)[")])? *(?:\n+|$)/,
+  paragraph: /^([^\n]+\n?(?!hr|heading|lheading|blockquote|tag|def))+\n*/,
+  text: /^[^\n]+/
+};
+
+block.bullet = /(?:[*+-]|\d+\.)/;
+block.item = /^( *)(bull) [^\n]*(?:\n(?!\1bull )[^\n]*)*/;
+block.item = replace(block.item, 'gm')
+  (/bull/g, block.bullet)
+  ();
+
+block.list = replace(block.list)
+  (/bull/g, block.bullet)
+  ('hr', /\n+(?=(?: *[-*_]){3,} *(?:\n+|$))/)
+  ();
+
+block.html = replace(block.html)
+  ('comment', /<!--[^\0]*?-->/)
+  ('closed', /<(tag)[^\0]+?<\/\1>/)
+  ('closing', /<tag(?:"[^"]*"|'[^']*'|[^'">])*?>/)
+  (/tag/g, tag())
+  ();
+
+block.paragraph = replace(block.paragraph)
+  ('hr', block.hr)
+  ('heading', block.heading)
+  ('lheading', block.lheading)
+  ('blockquote', block.blockquote)
+  ('tag', '<' + tag())
+  ('def', block.def)
+  ();
+
+block.normal = {
+  fences: block.fences,
+  paragraph: block.paragraph
+};
+
+block.gfm = {
+  fences: /^ *(```|~~~) *(\w+)? *\n([^\0]+?)\s*\1 *(?:\n+|$)/,
+  paragraph: /^/
+};
+
+block.gfm.paragraph = replace(block.paragraph)
+  ('(?!', '(?!' + block.gfm.fences.source.replace('\\1', '\\2') + '|')
+  ();
+
+/**
+ * Block Lexer
+ */
+
+block.lexer = function(src) {
+  var tokens = [];
+
+  tokens.links = {};
+
+  src = src
+    .replace(/\r\n|\r/g, '\n')
+    .replace(/\t/g, '    ');
+
+  return block.token(src, tokens, true);
+};
+
+block.token = function(src, tokens, top) {
+  var src = src.replace(/^ +$/gm, '')
+    , next
+    , loose
+    , cap
+    , item
+    , space
+    , i
+    , l;
+
+  while (src) {
+    // newline
+    if (cap = block.newline.exec(src)) {
+      src = src.substring(cap[0].length);
+      if (cap[0].length > 1) {
+        tokens.push({
+          type: 'space'
+        });
+      }
+    }
+
+    // code
+    if (cap = block.code.exec(src)) {
+      src = src.substring(cap[0].length);
+      cap = cap[0].replace(/^ {4}/gm, '');
+      tokens.push({
+        type: 'code',
+        text: !options.pedantic
+          ? cap.replace(/\n+$/, '')
+          : cap
+      });
+      continue;
+    }
+
+    // fences (gfm)
+    if (cap = block.fences.exec(src)) {
+      src = src.substring(cap[0].length);
+      tokens.push({
+        type: 'code',
+        lang: cap[2],
+        text: cap[3]
+      });
+      continue;
+    }
+
+    // heading
+    if (cap = block.heading.exec(src)) {
+      src = src.substring(cap[0].length);
+      tokens.push({
+        type: 'heading',
+        depth: cap[1].length,
+        text: cap[2]
+      });
+      continue;
+    }
+
+    // lheading
+    if (cap = block.lheading.exec(src)) {
+      src = src.substring(cap[0].length);
+      tokens.push({
+        type: 'heading',
+        depth: cap[2] === '=' ? 1 : 2,
+        text: cap[1]
+      });
+      continue;
+    }
+
+    // hr
+    if (cap = block.hr.exec(src)) {
+      src = src.substring(cap[0].length);
+      tokens.push({
+        type: 'hr'
+      });
+      continue;
+    }
+
+    // blockquote
+    if (cap = block.blockquote.exec(src)) {
+      src = src.substring(cap[0].length);
+
+      tokens.push({
+        type: 'blockquote_start'
+      });
+
+      cap = cap[0].replace(/^ *> ?/gm, '');
+
+      // Pass `top` to keep the current
+      // "toplevel" state. This is exactly
+      // how markdown.pl works.
+      block.token(cap, tokens, top);
+
+      tokens.push({
+        type: 'blockquote_end'
+      });
+
+      continue;
+    }
+
+    // list
+    if (cap = block.list.exec(src)) {
+      src = src.substring(cap[0].length);
+
+      tokens.push({
+        type: 'list_start',
+        ordered: isFinite(cap[2])
+      });
+
+      // Get each top-level item.
+      cap = cap[0].match(block.item);
+
+      next = false;
+      l = cap.length;
+      i = 0;
+
+      for (; i < l; i++) {
+        item = cap[i];
+
+        // Remove the list item's bullet
+        // so it is seen as the next token.
+        space = item.length;
+        item = item.replace(/^ *([*+-]|\d+\.) +/, '');
+
+        // Outdent whatever the
+        // list item contains. Hacky.
+        if (~item.indexOf('\n ')) {
+          space -= item.length;
+          item = !options.pedantic
+            ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '')
+            : item.replace(/^ {1,4}/gm, '');
+        }
+
+        // Determine whether item is loose or not.
+        // Use: /(^|\n)(?! )[^\n]+\n\n(?!\s*$)/
+        // for discount behavior.
+        loose = next || /\n\n(?!\s*$)/.test(item);
+        if (i !== l - 1) {
+          next = item[item.length-1] === '\n';
+          if (!loose) loose = next;
+        }
+
+        tokens.push({
+          type: loose
+            ? 'loose_item_start'
+            : 'list_item_start'
+        });
+
+        // Recurse.
+        block.token(item, tokens);
+
+        tokens.push({
+          type: 'list_item_end'
+        });
+      }
+
+      tokens.push({
+        type: 'list_end'
+      });
+
+      continue;
+    }
+
+    // html
+    if (cap = block.html.exec(src)) {
+      src = src.substring(cap[0].length);
+      tokens.push({
+        type: options.sanitize
+          ? 'paragraph'
+          : 'html',
+        pre: cap[1] === 'pre',
+        text: cap[0]
+      });
+      continue;
+    }
+
+    // def
+    if (top && (cap = block.def.exec(src))) {
+      src = src.substring(cap[0].length);
+      tokens.links[cap[1].toLowerCase()] = {
+        href: cap[2],
+        title: cap[3]
+      };
+      continue;
+    }
+
+    // top-level paragraph
+    if (top && (cap = block.paragraph.exec(src))) {
+      src = src.substring(cap[0].length);
+      tokens.push({
+        type: 'paragraph',
+        text: cap[0]
+      });
+      continue;
+    }
+
+    // text
+    if (cap = block.text.exec(src)) {
+      // Top-level should never reach here.
+      src = src.substring(cap[0].length);
+      tokens.push({
+        type: 'text',
+        text: cap[0]
+      });
+      continue;
+    }
+  }
+
+  return tokens;
+};
+
+/**
+ * Inline Processing
+ */
+
+var inline = {
+  escape: /^\\([\\`*{}\[\]()#+\-.!_>])/,
+  autolink: /^<([^ >]+(@|:\/)[^ >]+)>/,
+  url: noop,
+  tag: /^<!--[^\0]*?-->|^<\/?\w+(?:"[^"]*"|'[^']*'|[^'">])*?>/,
+  link: /^!?\[(inside)\]\(href\)/,
+  reflink: /^!?\[(inside)\]\s*\[([^\]]*)\]/,
+  nolink: /^!?\[((?:\[[^\]]*\]|[^\[\]])*)\]/,
+  strong: /^__([^\0]+?)__(?!_)|^\*\*([^\0]+?)\*\*(?!\*)/,
+  em: /^\b_((?:__|[^\0])+?)_\b|^\*((?:\*\*|[^\0])+?)\*(?!\*)/,
+  code: /^(`+)([^\0]*?[^`])\1(?!`)/,
+  br: /^ {2,}\n(?!\s*$)/,
+  text: /^[^\0]+?(?=[\\<!\[_*`]| {2,}\n|$)/
+};
+
+inline._linkInside = /(?:\[[^\]]*\]|[^\]]|\](?=[^\[]*\]))*/;
+inline._linkHref = /\s*<?([^\s]*?)>?(?:\s+['"]([^\0]*?)['"])?\s*/;
+
+inline.link = replace(inline.link)
+  ('inside', inline._linkInside)
+  ('href', inline._linkHref)
+  ();
+
+inline.reflink = replace(inline.reflink)
+  ('inside', inline._linkInside)
+  ();
+
+inline.normal = {
+  url: inline.url,
+  strong: inline.strong,
+  em: inline.em,
+  text: inline.text
+};
+
+inline.pedantic = {
+  strong: /^__(?=\S)([^\0]*?\S)__(?!_)|^\*\*(?=\S)([^\0]*?\S)\*\*(?!\*)/,
+  em: /^_(?=\S)([^\0]*?\S)_(?!_)|^\*(?=\S)([^\0]*?\S)\*(?!\*)/
+};
+
+inline.gfm = {
+  url: /^(https?:\/\/[^\s]+[^.,:;"')\]\s])/,
+  text: /^[^\0]+?(?=[\\<!\[_*`]|https?:\/\/| {2,}\n|$)/
+};
+
+/**
+ * Inline Lexer
+ */
+
+inline.lexer = function(src) {
+  var out = ''
+    , links = tokens.links
+    , link
+    , text
+    , href
+    , cap;
+
+  while (src) {
+    // escape
+    if (cap = inline.escape.exec(src)) {
+      src = src.substring(cap[0].length);
+      out += cap[1];
+      continue;
+    }
+
+    // autolink
+    if (cap = inline.autolink.exec(src)) {
+      src = src.substring(cap[0].length);
+      if (cap[2] === '@') {
+        text = cap[1][6] === ':'
+          ? mangle(cap[1].substring(7))
+          : mangle(cap[1]);
+        href = mangle('mailto:') + text;
+      } else {
+        text = escape(cap[1]);
+        href = text;
+      }
+      out += '<a href="'
+        + href
+        + '">'
+        + text
+        + '</a>';
+      continue;
+    }
+
+    // url (gfm)
+    if (cap = inline.url.exec(src)) {
+      src = src.substring(cap[0].length);
+      text = escape(cap[1]);
+      href = text;
+      out += '<a href="'
+        + href
+        + '">'
+        + text
+        + '</a>';
+      continue;
+    }
+
+    // tag
+    if (cap = inline.tag.exec(src)) {
+      src = src.substring(cap[0].length);
+      out += options.sanitize
+        ? escape(cap[0])
+        : cap[0];
+      continue;
+    }
+
+    // link
+    if (cap = inline.link.exec(src)) {
+      src = src.substring(cap[0].length);
+      out += outputLink(cap, {
+        href: cap[2],
+        title: cap[3]
+      });
+      continue;
+    }
+
+    // reflink, nolink
+    if ((cap = inline.reflink.exec(src))
+        || (cap = inline.nolink.exec(src))) {
+      src = src.substring(cap[0].length);
+      link = (cap[2] || cap[1]).replace(/\s+/g, ' ');
+      link = links[link.toLowerCase()];
+      if (!link || !link.href) {
+        out += cap[0][0];
+        src = cap[0].substring(1) + src;
+        continue;
+      }
+      out += outputLink(cap, link);
+      continue;
+    }
+
+    // strong
+    if (cap = inline.strong.exec(src)) {
+      src = src.substring(cap[0].length);
+      out += '<strong>'
+        + inline.lexer(cap[2] || cap[1])
+        + '</strong>';
+      continue;
+    }
+
+    // em
+    if (cap = inline.em.exec(src)) {
+      src = src.substring(cap[0].length);
+      out += '<em>'
+        + inline.lexer(cap[2] || cap[1])
+        + '</em>';
+      continue;
+    }
+
+    // code
+    if (cap = inline.code.exec(src)) {
+      src = src.substring(cap[0].length);
+      out += '<code>'
+        + escape(cap[2], true)
+        + '</code>';
+      continue;
+    }
+
+    // br
+    if (cap = inline.br.exec(src)) {
+      src = src.substring(cap[0].length);
+      out += '<br>';
+      continue;
+    }
+
+    // text
+    if (cap = inline.text.exec(src)) {
+      src = src.substring(cap[0].length);
+      out += escape(cap[0]);
+      continue;
+    }
+  }
+
+  return out;
+};
+
+function outputLink(cap, link) {
+  if (cap[0][0] !== '!') {
+    return '<a href="'
+      + escape(link.href)
+      + '"'
+      + (link.title
+      ? ' title="'
+      + escape(link.title)
+      + '"'
+      : '')
+      + '>'
+      + inline.lexer(cap[1])
+      + '</a>';
+  } else {
+    return '<img src="'
+      + escape(link.href)
+      + '" alt="'
+      + escape(cap[1])
+      + '"'
+      + (link.title
+      ? ' title="'
+      + escape(link.title)
+      + '"'
+      : '')
+      + '>';
+  }
+}
+
+/**
+ * Parsing
+ */
+
+var tokens
+  , token;
+
+function next() {
+  return token = tokens.pop();
+}
+
+function tok() {
+  switch (token.type) {
+    case 'space': {
+      return '';
+    }
+    case 'hr': {
+      return '<hr>\n';
+    }
+    case 'heading': {
+      return '<h'
+        + token.depth
+        + '>'
+        + inline.lexer(token.text)
+        + '</h'
+        + token.depth
+        + '>\n';
+    }
+    case 'code': {
+      if (options.highlight) {
+        token.code = options.highlight(token.text, token.lang);
+        if (token.code != null && token.code !== token.text) {
+          token.escaped = true;
+          token.text = token.code;
+        }
+      }
+
+      if (!token.escaped) {
+        token.text = escape(token.text, true);
+      }
+
+      return '<pre><code'
+        + (token.lang
+        ? ' class="lang-'
+        + token.lang
+        + '"'
+        : '')
+        + '>'
+        + token.text
+        + '</code></pre>\n';
+    }
+    case 'blockquote_start': {
+      var body = '';
+
+      while (next().type !== 'blockquote_end') {
+        body += tok();
+      }
+
+      return '<blockquote>\n'
+        + body
+        + '</blockquote>\n';
+    }
+    case 'list_start': {
+      var type = token.ordered ? 'ol' : 'ul'
+        , body = '';
+
+      while (next().type !== 'list_end') {
+        body += tok();
+      }
+
+      return '<'
+        + type
+        + '>\n'
+        + body
+        + '</'
+        + type
+        + '>\n';
+    }
+    case 'list_item_start': {
+      var body = '';
+
+      while (next().type !== 'list_item_end') {
+        body += token.type === 'text'
+          ? parseText()
+          : tok();
+      }
+
+      return '<li>'
+        + body
+        + '</li>\n';
+    }
+    case 'loose_item_start': {
+      var body = '';
+
+      while (next().type !== 'list_item_end') {
+        body += tok();
+      }
+
+      return '<li>'
+        + body
+        + '</li>\n';
+    }
+    case 'html': {
+      return !token.pre && !options.pedantic
+        ? inline.lexer(token.text)
+        : token.text;
+    }
+    case 'paragraph': {
+      return '<p>'
+        + inline.lexer(token.text)
+        + '</p>\n';
+    }
+    case 'text': {
+      return '<p>'
+        + parseText()
+        + '</p>\n';
+    }
+  }
+}
+
+function parseText() {
+  var body = token.text
+    , top;
+
+  while ((top = tokens[tokens.length-1])
+         && top.type === 'text') {
+    body += '\n' + next().text;
+  }
+
+  return inline.lexer(body);
+}
+
+function parse(src) {
+  tokens = src.reverse();
+
+  var out = '';
+  while (next()) {
+    out += tok();
+  }
+
+  tokens = null;
+  token = null;
+
+  return out;
+}
+
+/**
+ * Helpers
+ */
+
+function escape(html, encode) {
+  return html
+    .replace(!encode ? /&(?!#?\w+;)/g : /&/g, '&amp;')
+    .replace(/</g, '&lt;')
+    .replace(/>/g, '&gt;')
+    .replace(/"/g, '&quot;')
+    .replace(/'/g, '&#39;');
+}
+
+function mangle(text) {
+  var out = ''
+    , l = text.length
+    , i = 0
+    , ch;
+
+  for (; i < l; i++) {
+    ch = text.charCodeAt(i);
+    if (Math.random() > 0.5) {
+      ch = 'x' + ch.toString(16);
+    }
+    out += '&#' + ch + ';';
+  }
+
+  return out;
+}
+
+function tag() {
+  var tag = '(?!(?:'
+    + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code'
+    + '|var|samp|kbd|sub|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo'
+    + '|span|br|wbr|ins|del|img)\\b)\\w+(?!:/|@)\\b';
+
+  return tag;
+}
+
+function replace(regex, opt) {
+  regex = regex.source;
+  opt = opt || '';
+  return function self(name, val) {
+    if (!name) return new RegExp(regex, opt);
+    val = val.source || val;
+    val = val.replace(/(^|[^\[])\^/g, '$1');
+    regex = regex.replace(name, val);
+    return self;
+  };
+}
+
+function noop() {}
+noop.exec = noop;
+
+/**
+ * Marked
+ */
+
+function marked(src, opt) {
+  setOptions(opt);
+  return parse(block.lexer(src));
+}
+
+/**
+ * Options
+ */
+
+var options
+  , defaults;
+
+function setOptions(opt) {
+  if (!opt) opt = defaults;
+  if (options === opt) return;
+  options = opt;
+
+  if (options.gfm) {
+    block.fences = block.gfm.fences;
+    block.paragraph = block.gfm.paragraph;
+    inline.text = inline.gfm.text;
+    inline.url = inline.gfm.url;
+  } else {
+    block.fences = block.normal.fences;
+    block.paragraph = block.normal.paragraph;
+    inline.text = inline.normal.text;
+    inline.url = inline.normal.url;
+  }
+
+  if (options.pedantic) {
+    inline.em = inline.pedantic.em;
+    inline.strong = inline.pedantic.strong;
+  } else {
+    inline.em = inline.normal.em;
+    inline.strong = inline.normal.strong;
+  }
+}
+
+marked.options =
+marked.setOptions = function(opt) {
+  defaults = opt;
+  setOptions(opt);
+  return marked;
+};
+
+marked.setOptions({
+  gfm: true,
+  pedantic: false,
+  sanitize: false,
+  highlight: null
+});
+
+/**
+ * Expose
+ */
+
+marked.parser = function(src, opt) {
+  setOptions(opt);
+  return parse(src);
+};
+
+marked.lexer = function(src, opt) {
+  setOptions(opt);
+  return block.lexer(src);
+};
+
+marked.parse = marked;
+
+if (typeof module !== 'undefined') {
+  module.exports = marked;
+} else {
+  this.marked = marked;
+}
+
+}).call(function() {
+  return this || (typeof window !== 'undefined' ? window : global);
+}());
diff -r 010bfb3a3463 -r 56c4cd16d849 vendor/assets/javascripts/prettify.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/assets/javascripts/prettify.js	Sun May 12 12:00:17 2013 +0900
@@ -0,0 +1,1477 @@
+// Copyright (C) 2006 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+
+/**
+ * @fileoverview
+ * some functions for browser-side pretty printing of code contained in html.
+ *
+ * <p>
+ * For a fairly comprehensive set of languages see the
+ * <a href="http://google-code-prettify.googlecode.com/svn/trunk/README.html#langs">README</a>
+ * file that came with this source.  At a minimum, the lexer should work on a
+ * number of languages including C and friends, Java, Python, Bash, SQL, HTML,
+ * XML, CSS, Javascript, and Makefiles.  It works passably on Ruby, PHP and Awk
+ * and a subset of Perl, but, because of commenting conventions, doesn't work on
+ * Smalltalk, Lisp-like, or CAML-like languages without an explicit lang class.
+ * <p>
+ * Usage: <ol>
+ * <li> include this source file in an html page via
+ *   {@code <script type="text/javascript" src="/path/to/prettify.js"></script>}
+ * <li> define style rules.  See the example page for examples.
+ * <li> mark the {@code <pre>} and {@code <code>} tags in your source with
+ *    {@code class=prettyprint.}
+ *    You can also use the (html deprecated) {@code <xmp>} tag, but the pretty
+ *    printer needs to do more substantial DOM manipulations to support that, so
+ *    some css styles may not be preserved.
+ * </ol>
+ * That's it.  I wanted to keep the API as simple as possible, so there's no
+ * need to specify which language the code is in, but if you wish, you can add
+ * another class to the {@code <pre>} or {@code <code>} element to specify the
+ * language, as in {@code <pre class="prettyprint lang-java">}.  Any class that
+ * starts with "lang-" followed by a file extension, specifies the file type.
+ * See the "lang-*.js" files in this directory for code that implements
+ * per-language file handlers.
+ * <p>
+ * Change log:<br>
+ * cbeust, 2006/08/22
+ * <blockquote>
+ *   Java annotations (start with "@") are now captured as literals ("lit")
+ * </blockquote>
+ * @requires console
+ */
+
+// JSLint declarations
+/*global console, document, navigator, setTimeout, window */
+
+/**
+ * Split {@code prettyPrint} into multiple timeouts so as not to interfere with
+ * UI events.
+ * If set to {@code false}, {@code prettyPrint()} is synchronous.
+ */
+window['PR_SHOULD_USE_CONTINUATION'] = true;
+
+(function () {
+  // Keyword lists for various languages.
+  // We use things that coerce to strings to make them compact when minified
+  // and to defeat aggressive optimizers that fold large string constants.
+  var FLOW_CONTROL_KEYWORDS = ["break,continue,do,else,for,if,return,while"];
+  var C_KEYWORDS = [FLOW_CONTROL_KEYWORDS,"auto,case,char,const,default," + 
+      "double,enum,extern,float,goto,int,long,register,short,signed,sizeof," +
+      "static,struct,switch,typedef,union,unsigned,void,volatile"];
+  var COMMON_KEYWORDS = [C_KEYWORDS,"catch,class,delete,false,import," +
+      "new,operator,private,protected,public,this,throw,true,try,typeof"];
+  var CPP_KEYWORDS = [COMMON_KEYWORDS,"alignof,align_union,asm,axiom,bool," +
+      "concept,concept_map,const_cast,constexpr,decltype," +
+      "dynamic_cast,explicit,export,friend,inline,late_check," +
+      "mutable,namespace,nullptr,reinterpret_cast,static_assert,static_cast," +
+      "template,typeid,typename,using,virtual,where"];
+  var JAVA_KEYWORDS = [COMMON_KEYWORDS,
+      "abstract,boolean,byte,extends,final,finally,implements,import," +
+      "instanceof,null,native,package,strictfp,super,synchronized,throws," +
+      "transient"];
+  var CSHARP_KEYWORDS = [JAVA_KEYWORDS,
+      "as,base,by,checked,decimal,delegate,descending,dynamic,event," +
+      "fixed,foreach,from,group,implicit,in,interface,internal,into,is,lock," +
+      "object,out,override,orderby,params,partial,readonly,ref,sbyte,sealed," +
+      "stackalloc,string,select,uint,ulong,unchecked,unsafe,ushort,var"];
+  var COFFEE_KEYWORDS = "all,and,by,catch,class,else,extends,false,finally," +
+      "for,if,in,is,isnt,loop,new,no,not,null,of,off,on,or,return,super,then," +
+      "true,try,unless,until,when,while,yes";
+  var JSCRIPT_KEYWORDS = [COMMON_KEYWORDS,
+      "debugger,eval,export,function,get,null,set,undefined,var,with," +
+      "Infinity,NaN"];
+  var PERL_KEYWORDS = "caller,delete,die,do,dump,elsif,eval,exit,foreach,for," +
+      "goto,if,import,last,local,my,next,no,our,print,package,redo,require," +
+      "sub,undef,unless,until,use,wantarray,while,BEGIN,END";
+  var PYTHON_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "and,as,assert,class,def,del," +
+      "elif,except,exec,finally,from,global,import,in,is,lambda," +
+      "nonlocal,not,or,pass,print,raise,try,with,yield," +
+      "False,True,None"];
+  var RUBY_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "alias,and,begin,case,class," +
+      "def,defined,elsif,end,ensure,false,in,module,next,nil,not,or,redo," +
+      "rescue,retry,self,super,then,true,undef,unless,until,when,yield," +
+      "BEGIN,END"];
+  var SH_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "case,done,elif,esac,eval,fi," +
+      "function,in,local,set,then,until"];
+  var ALL_KEYWORDS = [
+      CPP_KEYWORDS, CSHARP_KEYWORDS, JSCRIPT_KEYWORDS, PERL_KEYWORDS +
+      PYTHON_KEYWORDS, RUBY_KEYWORDS, SH_KEYWORDS];
+  var C_TYPES = /^(DIR|FILE|vector|(de|priority_)?queue|list|stack|(const_)?iterator|(multi)?(set|map)|bitset|u?(int|float)\d*)/;
+
+  // token style names.  correspond to css classes
+  /**
+   * token style for a string literal
+   * @const
+   */
+  var PR_STRING = 'str';
+  /**
+   * token style for a keyword
+   * @const
+   */
+  var PR_KEYWORD = 'kwd';
+  /**
+   * token style for a comment
+   * @const
+   */
+  var PR_COMMENT = 'com';
+  /**
+   * token style for a type
+   * @const
+   */
+  var PR_TYPE = 'typ';
+  /**
+   * token style for a literal value.  e.g. 1, null, true.
+   * @const
+   */
+  var PR_LITERAL = 'lit';
+  /**
+   * token style for a punctuation string.
+   * @const
+   */
+  var PR_PUNCTUATION = 'pun';
+  /**
+   * token style for a punctuation string.
+   * @const
+   */
+  var PR_PLAIN = 'pln';
+
+  /**
+   * token style for an sgml tag.
+   * @const
+   */
+  var PR_TAG = 'tag';
+  /**
+   * token style for a markup declaration such as a DOCTYPE.
+   * @const
+   */
+  var PR_DECLARATION = 'dec';
+  /**
+   * token style for embedded source.
+   * @const
+   */
+  var PR_SOURCE = 'src';
+  /**
+   * token style for an sgml attribute name.
+   * @const
+   */
+  var PR_ATTRIB_NAME = 'atn';
+  /**
+   * token style for an sgml attribute value.
+   * @const
+   */
+  var PR_ATTRIB_VALUE = 'atv';
+
+  /**
+   * A class that indicates a section of markup that is not code, e.g. to allow
+   * embedding of line numbers within code listings.
+   * @const
+   */
+  var PR_NOCODE = 'nocode';
+
+
+
+/**
+ * A set of tokens that can precede a regular expression literal in
+ * javascript
+ * http://web.archive.org/web/20070717142515/http://www.mozilla.org/js/language/js20/rationale/syntax.html
+ * has the full list, but I've removed ones that might be problematic when
+ * seen in languages that don't support regular expression literals.
+ *
+ * <p>Specifically, I've removed any keywords that can't precede a regexp
+ * literal in a syntactically legal javascript program, and I've removed the
+ * "in" keyword since it's not a keyword in many languages, and might be used
+ * as a count of inches.
+ *
+ * <p>The link a above does not accurately describe EcmaScript rules since
+ * it fails to distinguish between (a=++/b/i) and (a++/b/i) but it works
+ * very well in practice.
+ *
+ * @private
+ * @const
+ */
+var REGEXP_PRECEDER_PATTERN = '(?:^^\\.?|[+-]|\\!|\\!=|\\!==|\\#|\\%|\\%=|&|&&|&&=|&=|\\(|\\*|\\*=|\\+=|\\,|\\-=|\\->|\\/|\\/=|:|::|\\;|<|<<|<<=|<=|=|==|===|>|>=|>>|>>=|>>>|>>>=|\\?|\\@|\\[|\\^|\\^=|\\^\\^|\\^\\^=|\\{|\\||\\|=|\\|\\||\\|\\|=|\\~|break|case|continue|delete|do|else|finally|instanceof|return|throw|try|typeof)\\s*';
+
+// CAVEAT: this does not properly handle the case where a regular
+// expression immediately follows another since a regular expression may
+// have flags for case-sensitivity and the like.  Having regexp tokens
+// adjacent is not valid in any language I'm aware of, so I'm punting.
+// TODO: maybe style special characters inside a regexp as punctuation.
+
+
+  /**
+   * Given a group of {@link RegExp}s, returns a {@code RegExp} that globally
+   * matches the union of the sets of strings matched by the input RegExp.
+   * Since it matches globally, if the input strings have a start-of-input
+   * anchor (/^.../), it is ignored for the purposes of unioning.
+   * @param {Array.<RegExp>} regexs non multiline, non-global regexs.
+   * @return {RegExp} a global regex.
+   */
+  function combinePrefixPatterns(regexs) {
+    var capturedGroupIndex = 0;
+  
+    var needToFoldCase = false;
+    var ignoreCase = false;
+    for (var i = 0, n = regexs.length; i < n; ++i) {
+      var regex = regexs[i];
+      if (regex.ignoreCase) {
+        ignoreCase = true;
+      } else if (/[a-z]/i.test(regex.source.replace(
+                     /\\u[0-9a-f]{4}|\\x[0-9a-f]{2}|\\[^ux]/gi, ''))) {
+        needToFoldCase = true;
+        ignoreCase = false;
+        break;
+      }
+    }
+  
+    var escapeCharToCodeUnit = {
+      'b': 8,
+      't': 9,
+      'n': 0xa,
+      'v': 0xb,
+      'f': 0xc,
+      'r': 0xd
+    };
+  
+    function decodeEscape(charsetPart) {
+      var cc0 = charsetPart.charCodeAt(0);
+      if (cc0 !== 92 /* \\ */) {
+        return cc0;
+      }
+      var c1 = charsetPart.charAt(1);
+      cc0 = escapeCharToCodeUnit[c1];
+      if (cc0) {
+        return cc0;
+      } else if ('0' <= c1 && c1 <= '7') {
+        return parseInt(charsetPart.substring(1), 8);
+      } else if (c1 === 'u' || c1 === 'x') {
+        return parseInt(charsetPart.substring(2), 16);
+      } else {
+        return charsetPart.charCodeAt(1);
+      }
+    }
+  
+    function encodeEscape(charCode) {
+      if (charCode < 0x20) {
+        return (charCode < 0x10 ? '\\x0' : '\\x') + charCode.toString(16);
+      }
+      var ch = String.fromCharCode(charCode);
+      if (ch === '\\' || ch === '-' || ch === '[' || ch === ']') {
+        ch = '\\' + ch;
+      }
+      return ch;
+    }
+  
+    function caseFoldCharset(charSet) {
+      var charsetParts = charSet.substring(1, charSet.length - 1).match(
+          new RegExp(
+              '\\\\u[0-9A-Fa-f]{4}'
+              + '|\\\\x[0-9A-Fa-f]{2}'
+              + '|\\\\[0-3][0-7]{0,2}'
+              + '|\\\\[0-7]{1,2}'
+              + '|\\\\[\\s\\S]'
+              + '|-'
+              + '|[^-\\\\]',
+              'g'));
+      var groups = [];
+      var ranges = [];
+      var inverse = charsetParts[0] === '^';
+      for (var i = inverse ? 1 : 0, n = charsetParts.length; i < n; ++i) {
+        var p = charsetParts[i];
+        if (/\\[bdsw]/i.test(p)) {  // Don't muck with named groups.
+          groups.push(p);
+        } else {
+          var start = decodeEscape(p);
+          var end;
+          if (i + 2 < n && '-' === charsetParts[i + 1]) {
+            end = decodeEscape(charsetParts[i + 2]);
+            i += 2;
+          } else {
+            end = start;
+          }
+          ranges.push([start, end]);
+          // If the range might intersect letters, then expand it.
+          // This case handling is too simplistic.
+          // It does not deal with non-latin case folding.
+          // It works for latin source code identifiers though.
+          if (!(end < 65 || start > 122)) {
+            if (!(end < 65 || start > 90)) {
+              ranges.push([Math.max(65, start) | 32, Math.min(end, 90) | 32]);
+            }
+            if (!(end < 97 || start > 122)) {
+              ranges.push([Math.max(97, start) & ~32, Math.min(end, 122) & ~32]);
+            }
+          }
+        }
+      }
+  
+      // [[1, 10], [3, 4], [8, 12], [14, 14], [16, 16], [17, 17]]
+      // -> [[1, 12], [14, 14], [16, 17]]
+      ranges.sort(function (a, b) { return (a[0] - b[0]) || (b[1]  - a[1]); });
+      var consolidatedRanges = [];
+      var lastRange = [NaN, NaN];
+      for (var i = 0; i < ranges.length; ++i) {
+        var range = ranges[i];
+        if (range[0] <= lastRange[1] + 1) {
+          lastRange[1] = Math.max(lastRange[1], range[1]);
+        } else {
+          consolidatedRanges.push(lastRange = range);
+        }
+      }
+  
+      var out = ['['];
+      if (inverse) { out.push('^'); }
+      out.push.apply(out, groups);
+      for (var i = 0; i < consolidatedRanges.length; ++i) {
+        var range = consolidatedRanges[i];
+        out.push(encodeEscape(range[0]));
+        if (range[1] > range[0]) {
+          if (range[1] + 1 > range[0]) { out.push('-'); }
+          out.push(encodeEscape(range[1]));
+        }
+      }
+      out.push(']');
+      return out.join('');
+    }
+  
+    function allowAnywhereFoldCaseAndRenumberGroups(regex) {
+      // Split into character sets, escape sequences, punctuation strings
+      // like ('(', '(?:', ')', '^'), and runs of characters that do not
+      // include any of the above.
+      var parts = regex.source.match(
+          new RegExp(
+              '(?:'
+              + '\\[(?:[^\\x5C\\x5D]|\\\\[\\s\\S])*\\]'  // a character set
+              + '|\\\\u[A-Fa-f0-9]{4}'  // a unicode escape
+              + '|\\\\x[A-Fa-f0-9]{2}'  // a hex escape
+              + '|\\\\[0-9]+'  // a back-reference or octal escape
+              + '|\\\\[^ux0-9]'  // other escape sequence
+              + '|\\(\\?[:!=]'  // start of a non-capturing group
+              + '|[\\(\\)\\^]'  // start/emd of a group, or line start
+              + '|[^\\x5B\\x5C\\(\\)\\^]+'  // run of other characters
+              + ')',
+              'g'));
+      var n = parts.length;
+  
+      // Maps captured group numbers to the number they will occupy in
+      // the output or to -1 if that has not been determined, or to
+      // undefined if they need not be capturing in the output.
+      var capturedGroups = [];
+  
+      // Walk over and identify back references to build the capturedGroups
+      // mapping.
+      for (var i = 0, groupIndex = 0; i < n; ++i) {
+        var p = parts[i];
+        if (p === '(') {
+          // groups are 1-indexed, so max group index is count of '('
+          ++groupIndex;
+        } else if ('\\' === p.charAt(0)) {
+          var decimalValue = +p.substring(1);
+          if (decimalValue && decimalValue <= groupIndex) {
+            capturedGroups[decimalValue] = -1;
+          }
+        }
+      }
+  
+      // Renumber groups and reduce capturing groups to non-capturing groups
+      // where possible.
+      for (var i = 1; i < capturedGroups.length; ++i) {
+        if (-1 === capturedGroups[i]) {
+          capturedGroups[i] = ++capturedGroupIndex;
+        }
+      }
+      for (var i = 0, groupIndex = 0; i < n; ++i) {
+        var p = parts[i];
+        if (p === '(') {
+          ++groupIndex;
+          if (capturedGroups[groupIndex] === undefined) {
+            parts[i] = '(?:';
+          }
+        } else if ('\\' === p.charAt(0)) {
+          var decimalValue = +p.substring(1);
+          if (decimalValue && decimalValue <= groupIndex) {
+            parts[i] = '\\' + capturedGroups[groupIndex];
+          }
+        }
+      }
+  
+      // Remove any prefix anchors so that the output will match anywhere.
+      // ^^ really does mean an anchored match though.
+      for (var i = 0, groupIndex = 0; i < n; ++i) {
+        if ('^' === parts[i] && '^' !== parts[i + 1]) { parts[i] = ''; }
+      }
+  
+      // Expand letters to groups to handle mixing of case-sensitive and
+      // case-insensitive patterns if necessary.
+      if (regex.ignoreCase && needToFoldCase) {
+        for (var i = 0; i < n; ++i) {
+          var p = parts[i];
+          var ch0 = p.charAt(0);
+          if (p.length >= 2 && ch0 === '[') {
+            parts[i] = caseFoldCharset(p);
+          } else if (ch0 !== '\\') {
+            // TODO: handle letters in numeric escapes.
+            parts[i] = p.replace(
+                /[a-zA-Z]/g,
+                function (ch) {
+                  var cc = ch.charCodeAt(0);
+                  return '[' + String.fromCharCode(cc & ~32, cc | 32) + ']';
+                });
+          }
+        }
+      }
+  
+      return parts.join('');
+    }
+  
+    var rewritten = [];
+    for (var i = 0, n = regexs.length; i < n; ++i) {
+      var regex = regexs[i];
+      if (regex.global || regex.multiline) { throw new Error('' + regex); }
+      rewritten.push(
+          '(?:' + allowAnywhereFoldCaseAndRenumberGroups(regex) + ')');
+    }
+  
+    return new RegExp(rewritten.join('|'), ignoreCase ? 'gi' : 'g');
+  }
+
+
+  /**
+   * Split markup into a string of source code and an array mapping ranges in
+   * that string to the text nodes in which they appear.
+   *
+   * <p>
+   * The HTML DOM structure:</p>
+   * <pre>
+   * (Element   "p"
+   *   (Element "b"
+   *     (Text  "print "))       ; #1
+   *   (Text    "'Hello '")      ; #2
+   *   (Element "br")            ; #3
+   *   (Text    "  + 'World';")) ; #4
+   * </pre>
+   * <p>
+   * corresponds to the HTML
+   * {@code <p><b>print </b>'Hello '<br>  + 'World';</p>}.</p>
+   *
+   * <p>
+   * It will produce the output:</p>
+   * <pre>
+   * {
+   *   sourceCode: "print 'Hello '\n  + 'World';",
+   *   //                 1         2
+   *   //       012345678901234 5678901234567
+   *   spans: [0, #1, 6, #2, 14, #3, 15, #4]
+   * }
+   * </pre>
+   * <p>
+   * where #1 is a reference to the {@code "print "} text node above, and so
+   * on for the other text nodes.
+   * </p>
+   *
+   * <p>
+   * The {@code} spans array is an array of pairs.  Even elements are the start
+   * indices of substrings, and odd elements are the text nodes (or BR elements)
+   * that contain the text for those substrings.
+   * Substrings continue until the next index or the end of the source.
+   * </p>
+   *
+   * @param {Node} node an HTML DOM subtree containing source-code.
+   * @return {Object} source code and the text nodes in which they occur.
+   */
+  function extractSourceSpans(node) {
+    var nocode = /(?:^|\s)nocode(?:\s|$)/;
+  
+    var chunks = [];
+    var length = 0;
+    var spans = [];
+    var k = 0;
+  
+    var whitespace;
+    if (node.currentStyle) {
+      whitespace = node.currentStyle.whiteSpace;
+    } else if (window.getComputedStyle) {
+      whitespace = document.defaultView.getComputedStyle(node, null)
+          .getPropertyValue('white-space');
+    }
+    var isPreformatted = whitespace && 'pre' === whitespace.substring(0, 3);
+  
+    function walk(node) {
+      switch (node.nodeType) {
+        case 1:  // Element
+          if (nocode.test(node.className)) { return; }
+          for (var child = node.firstChild; child; child = child.nextSibling) {
+            walk(child);
+          }
+          var nodeName = node.nodeName;
+          if ('BR' === nodeName || 'LI' === nodeName) {
+            chunks[k] = '\n';
+            spans[k << 1] = length++;
+            spans[(k++ << 1) | 1] = node;
+          }
+          break;
+        case 3: case 4:  // Text
+          var text = node.nodeValue;
+          if (text.length) {
+            if (!isPreformatted) {
+              text = text.replace(/[ \t\r\n]+/g, ' ');
+            } else {
+              text = text.replace(/\r\n?/g, '\n');  // Normalize newlines.
+            }
+            // TODO: handle tabs here?
+            chunks[k] = text;
+            spans[k << 1] = length;
+            length += text.length;
+            spans[(k++ << 1) | 1] = node;
+          }
+          break;
+      }
+    }
+  
+    walk(node);
+  
+    return {
+      sourceCode: chunks.join('').replace(/\n$/, ''),
+      spans: spans
+    };
+  }
+
+
+  /**
+   * Apply the given language handler to sourceCode and add the resulting
+   * decorations to out.
+   * @param {number} basePos the index of sourceCode within the chunk of source
+   *    whose decorations are already present on out.
+   */
+  function appendDecorations(basePos, sourceCode, langHandler, out) {
+    if (!sourceCode) { return; }
+    var job = {
+      sourceCode: sourceCode,
+      basePos: basePos
+    };
+    langHandler(job);
+    out.push.apply(out, job.decorations);
+  }
+
+  var notWs = /\S/;
+
+  /**
+   * Given an element, if it contains only one child element and any text nodes
+   * it contains contain only space characters, return the sole child element.
+   * Otherwise returns undefined.
+   * <p>
+   * This is meant to return the CODE element in {@code <pre><code ...>} when
+   * there is a single child element that contains all the non-space textual
+   * content, but not to return anything where there are multiple child elements
+   * as in {@code <pre><code>...</code><code>...</code></pre>} or when there
+   * is textual content.
+   */
+  function childContentWrapper(element) {
+    var wrapper = undefined;
+    for (var c = element.firstChild; c; c = c.nextSibling) {
+      var type = c.nodeType;
+      wrapper = (type === 1)  // Element Node
+          ? (wrapper ? element : c)
+          : (type === 3)  // Text Node
+          ? (notWs.test(c.nodeValue) ? element : wrapper)
+          : wrapper;
+    }
+    return wrapper === element ? undefined : wrapper;
+  }
+
+  /** Given triples of [style, pattern, context] returns a lexing function,
+    * The lexing function interprets the patterns to find token boundaries and
+    * returns a decoration list of the form
+    * [index_0, style_0, index_1, style_1, ..., index_n, style_n]
+    * where index_n is an index into the sourceCode, and style_n is a style
+    * constant like PR_PLAIN.  index_n-1 <= index_n, and style_n-1 applies to
+    * all characters in sourceCode[index_n-1:index_n].
+    *
+    * The stylePatterns is a list whose elements have the form
+    * [style : string, pattern : RegExp, DEPRECATED, shortcut : string].
+    *
+    * Style is a style constant like PR_PLAIN, or can be a string of the
+    * form 'lang-FOO', where FOO is a language extension describing the
+    * language of the portion of the token in $1 after pattern executes.
+    * E.g., if style is 'lang-lisp', and group 1 contains the text
+    * '(hello (world))', then that portion of the token will be passed to the
+    * registered lisp handler for formatting.
+    * The text before and after group 1 will be restyled using this decorator
+    * so decorators should take care that this doesn't result in infinite
+    * recursion.  For example, the HTML lexer rule for SCRIPT elements looks
+    * something like ['lang-js', /<[s]cript>(.+?)<\/script>/].  This may match
+    * '<script>foo()<\/script>', which would cause the current decorator to
+    * be called with '<script>' which would not match the same rule since
+    * group 1 must not be empty, so it would be instead styled as PR_TAG by
+    * the generic tag rule.  The handler registered for the 'js' extension would
+    * then be called with 'foo()', and finally, the current decorator would
+    * be called with '<\/script>' which would not match the original rule and
+    * so the generic tag rule would identify it as a tag.
+    *
+    * Pattern must only match prefixes, and if it matches a prefix, then that
+    * match is considered a token with the same style.
+    *
+    * Context is applied to the last non-whitespace, non-comment token
+    * recognized.
+    *
+    * Shortcut is an optional string of characters, any of which, if the first
+    * character, gurantee that this pattern and only this pattern matches.
+    *
+    * @param {Array} shortcutStylePatterns patterns that always start with
+    *   a known character.  Must have a shortcut string.
+    * @param {Array} fallthroughStylePatterns patterns that will be tried in
+    *   order if the shortcut ones fail.  May have shortcuts.
+    *
+    * @return {function (Object)} a
+    *   function that takes source code and returns a list of decorations.
+    */
+  function createSimpleLexer(shortcutStylePatterns, fallthroughStylePatterns) {
+    var shortcuts = {};
+    var tokenizer;
+    (function () {
+      var allPatterns = shortcutStylePatterns.concat(fallthroughStylePatterns);
+      var allRegexs = [];
+      var regexKeys = {};
+      for (var i = 0, n = allPatterns.length; i < n; ++i) {
+        var patternParts = allPatterns[i];
+        var shortcutChars = patternParts[3];
+        if (shortcutChars) {
+          for (var c = shortcutChars.length; --c >= 0;) {
+            shortcuts[shortcutChars.charAt(c)] = patternParts;
+          }
+        }
+        var regex = patternParts[1];
+        var k = '' + regex;
+        if (!regexKeys.hasOwnProperty(k)) {
+          allRegexs.push(regex);
+          regexKeys[k] = null;
+        }
+      }
+      allRegexs.push(/[\0-\uffff]/);
+      tokenizer = combinePrefixPatterns(allRegexs);
+    })();
+
+    var nPatterns = fallthroughStylePatterns.length;
+
+    /**
+     * Lexes job.sourceCode and produces an output array job.decorations of
+     * style classes preceded by the position at which they start in
+     * job.sourceCode in order.
+     *
+     * @param {Object} job an object like <pre>{
+     *    sourceCode: {string} sourceText plain text,
+     *    basePos: {int} position of job.sourceCode in the larger chunk of
+     *        sourceCode.
+     * }</pre>
+     */
+    var decorate = function (job) {
+      var sourceCode = job.sourceCode, basePos = job.basePos;
+      /** Even entries are positions in source in ascending order.  Odd enties
+        * are style markers (e.g., PR_COMMENT) that run from that position until
+        * the end.
+        * @type {Array.<number|string>}
+        */
+      var decorations = [basePos, PR_PLAIN];
+      var pos = 0;  // index into sourceCode
+      var tokens = sourceCode.match(tokenizer) || [];
+      var styleCache = {};
+
+      for (var ti = 0, nTokens = tokens.length; ti < nTokens; ++ti) {
+        var token = tokens[ti];
+        var style = styleCache[token];
+        var match = void 0;
+
+        var isEmbedded;
+        if (typeof style === 'string') {
+          isEmbedded = false;
+        } else {
+          var patternParts = shortcuts[token.charAt(0)];
+          if (patternParts) {
+            match = token.match(patternParts[1]);
+            style = patternParts[0];
+          } else {
+            for (var i = 0; i < nPatterns; ++i) {
+              patternParts = fallthroughStylePatterns[i];
+              match = token.match(patternParts[1]);
+              if (match) {
+                style = patternParts[0];
+                break;
+              }
+            }
+
+            if (!match) {  // make sure that we make progress
+              style = PR_PLAIN;
+            }
+          }
+
+          isEmbedded = style.length >= 5 && 'lang-' === style.substring(0, 5);
+          if (isEmbedded && !(match && typeof match[1] === 'string')) {
+            isEmbedded = false;
+            style = PR_SOURCE;
+          }
+
+          if (!isEmbedded) { styleCache[token] = style; }
+        }
+
+        var tokenStart = pos;
+        pos += token.length;
+
+        if (!isEmbedded) {
+          decorations.push(basePos + tokenStart, style);
+        } else {  // Treat group 1 as an embedded block of source code.
+          var embeddedSource = match[1];
+          var embeddedSourceStart = token.indexOf(embeddedSource);
+          var embeddedSourceEnd = embeddedSourceStart + embeddedSource.length;
+          if (match[2]) {
+            // If embeddedSource can be blank, then it would match at the
+            // beginning which would cause us to infinitely recurse on the
+            // entire token, so we catch the right context in match[2].
+            embeddedSourceEnd = token.length - match[2].length;
+            embeddedSourceStart = embeddedSourceEnd - embeddedSource.length;
+          }
+          var lang = style.substring(5);
+          // Decorate the left of the embedded source
+          appendDecorations(
+              basePos + tokenStart,
+              token.substring(0, embeddedSourceStart),
+              decorate, decorations);
+          // Decorate the embedded source
+          appendDecorations(
+              basePos + tokenStart + embeddedSourceStart,
+              embeddedSource,
+              langHandlerForExtension(lang, embeddedSource),
+              decorations);
+          // Decorate the right of the embedded section
+          appendDecorations(
+              basePos + tokenStart + embeddedSourceEnd,
+              token.substring(embeddedSourceEnd),
+              decorate, decorations);
+        }
+      }
+      job.decorations = decorations;
+    };
+    return decorate;
+  }
+
+  /** returns a function that produces a list of decorations from source text.
+    *
+    * This code treats ", ', and ` as string delimiters, and \ as a string
+    * escape.  It does not recognize perl's qq() style strings.
+    * It has no special handling for double delimiter escapes as in basic, or
+    * the tripled delimiters used in python, but should work on those regardless
+    * although in those cases a single string literal may be broken up into
+    * multiple adjacent string literals.
+    *
+    * It recognizes C, C++, and shell style comments.
+    *
+    * @param {Object} options a set of optional parameters.
+    * @return {function (Object)} a function that examines the source code
+    *     in the input job and builds the decoration list.
+    */
+  function sourceDecorator(options) {
+    var shortcutStylePatterns = [], fallthroughStylePatterns = [];
+    if (options['tripleQuotedStrings']) {
+      // '''multi-line-string''', 'single-line-string', and double-quoted
+      shortcutStylePatterns.push(
+          [PR_STRING,  /^(?:\'\'\'(?:[^\'\\]|\\[\s\S]|\'{1,2}(?=[^\']))*(?:\'\'\'|$)|\"\"\"(?:[^\"\\]|\\[\s\S]|\"{1,2}(?=[^\"]))*(?:\"\"\"|$)|\'(?:[^\\\']|\\[\s\S])*(?:\'|$)|\"(?:[^\\\"]|\\[\s\S])*(?:\"|$))/,
+           null, '\'"']);
+    } else if (options['multiLineStrings']) {
+      // 'multi-line-string', "multi-line-string"
+      shortcutStylePatterns.push(
+          [PR_STRING,  /^(?:\'(?:[^\\\']|\\[\s\S])*(?:\'|$)|\"(?:[^\\\"]|\\[\s\S])*(?:\"|$)|\`(?:[^\\\`]|\\[\s\S])*(?:\`|$))/,
+           null, '\'"`']);
+    } else {
+      // 'single-line-string', "single-line-string"
+      shortcutStylePatterns.push(
+          [PR_STRING,
+           /^(?:\'(?:[^\\\'\r\n]|\\.)*(?:\'|$)|\"(?:[^\\\"\r\n]|\\.)*(?:\"|$))/,
+           null, '"\'']);
+    }
+    if (options['verbatimStrings']) {
+      // verbatim-string-literal production from the C# grammar.  See issue 93.
+      fallthroughStylePatterns.push(
+          [PR_STRING, /^@\"(?:[^\"]|\"\")*(?:\"|$)/, null]);
+    }
+    var hc = options['hashComments'];
+    if (hc) {
+      if (options['cStyleComments']) {
+        if (hc > 1) {  // multiline hash comments
+          shortcutStylePatterns.push(
+              [PR_COMMENT, /^#(?:##(?:[^#]|#(?!##))*(?:###|$)|.*)/, null, '#']);
+        } else {
+          // Stop C preprocessor declarations at an unclosed open comment
+          shortcutStylePatterns.push(
+              [PR_COMMENT, /^#(?:(?:define|elif|else|endif|error|ifdef|include|ifndef|line|pragma|undef|warning)\b|[^\r\n]*)/,
+               null, '#']);
+        }
+        fallthroughStylePatterns.push(
+            [PR_STRING,
+             /^<(?:(?:(?:\.\.\/)*|\/?)(?:[\w-]+(?:\/[\w-]+)+)?[\w-]+\.h|[a-z]\w*)>/,
+             null]);
+      } else {
+        shortcutStylePatterns.push([PR_COMMENT, /^#[^\r\n]*/, null, '#']);
+      }
+    }
+    if (options['cStyleComments']) {
+      fallthroughStylePatterns.push([PR_COMMENT, /^\/\/[^\r\n]*/, null]);
+      fallthroughStylePatterns.push(
+          [PR_COMMENT, /^\/\*[\s\S]*?(?:\*\/|$)/, null]);
+    }
+    if (options['regexLiterals']) {
+      /**
+       * @const
+       */
+      var REGEX_LITERAL = (
+          // A regular expression literal starts with a slash that is
+          // not followed by * or / so that it is not confused with
+          // comments.
+          '/(?=[^/*])'
+          // and then contains any number of raw characters,
+          + '(?:[^/\\x5B\\x5C]'
+          // escape sequences (\x5C),
+          +    '|\\x5C[\\s\\S]'
+          // or non-nesting character sets (\x5B\x5D);
+          +    '|\\x5B(?:[^\\x5C\\x5D]|\\x5C[\\s\\S])*(?:\\x5D|$))+'
+          // finally closed by a /.
+          + '/');
+      fallthroughStylePatterns.push(
+          ['lang-regex',
+           new RegExp('^' + REGEXP_PRECEDER_PATTERN + '(' + REGEX_LITERAL + ')')
+           ]);
+    }
+
+    var types = options['types'];
+    if (types) {
+      fallthroughStylePatterns.push([PR_TYPE, types]);
+    }
+
+    var keywords = ("" + options['keywords']).replace(/^ | $/g, '');
+    if (keywords.length) {
+      fallthroughStylePatterns.push(
+          [PR_KEYWORD,
+           new RegExp('^(?:' + keywords.replace(/[\s,]+/g, '|') + ')\\b'),
+           null]);
+    }
+
+    shortcutStylePatterns.push([PR_PLAIN,       /^\s+/, null, ' \r\n\t\xA0']);
+    fallthroughStylePatterns.push(
+        // TODO(mikesamuel): recognize non-latin letters and numerals in idents
+        [PR_LITERAL,     /^@[a-z_$][a-z_$@0-9]*/i, null],
+        [PR_TYPE,        /^(?:[@_]?[A-Z]+[a-z][A-Za-z_$@0-9]*|\w+_t\b)/, null],
+        [PR_PLAIN,       /^[a-z_$][a-z_$@0-9]*/i, null],
+        [PR_LITERAL,
+         new RegExp(
+             '^(?:'
+             // A hex number
+             + '0x[a-f0-9]+'
+             // or an octal or decimal number,
+             + '|(?:\\d(?:_\\d+)*\\d*(?:\\.\\d*)?|\\.\\d\\+)'
+             // possibly in scientific notation
+             + '(?:e[+\\-]?\\d+)?'
+             + ')'
+             // with an optional modifier like UL for unsigned long
+             + '[a-z]*', 'i'),
+         null, '0123456789'],
+        // Don't treat escaped quotes in bash as starting strings.  See issue 144.
+        [PR_PLAIN,       /^\\[\s\S]?/, null],
+        [PR_PUNCTUATION, /^.[^\s\w\.$@\'\"\`\/\#\\]*/, null]);
+
+    return createSimpleLexer(shortcutStylePatterns, fallthroughStylePatterns);
+  }
+
+  var decorateSource = sourceDecorator({
+        'keywords': ALL_KEYWORDS,
+        'hashComments': true,
+        'cStyleComments': true,
+        'multiLineStrings': true,
+        'regexLiterals': true
+      });
+
+  /**
+   * Given a DOM subtree, wraps it in a list, and puts each line into its own
+   * list item.
+   *
+   * @param {Node} node modified in place.  Its content is pulled into an
+   *     HTMLOListElement, and each line is moved into a separate list item.
+   *     This requires cloning elements, so the input might not have unique
+   *     IDs after numbering.
+   */
+  function numberLines(node, opt_startLineNum) {
+    var nocode = /(?:^|\s)nocode(?:\s|$)/;
+    var lineBreak = /\r\n?|\n/;
+  
+    var document = node.ownerDocument;
+  
+    var whitespace;
+    if (node.currentStyle) {
+      whitespace = node.currentStyle.whiteSpace;
+    } else if (window.getComputedStyle) {
+      whitespace = document.defaultView.getComputedStyle(node, null)
+          .getPropertyValue('white-space');
+    }
+    // If it's preformatted, then we need to split lines on line breaks
+    // in addition to <BR>s.
+    var isPreformatted = whitespace && 'pre' === whitespace.substring(0, 3);
+  
+    var li = document.createElement('LI');
+    while (node.firstChild) {
+      li.appendChild(node.firstChild);
+    }
+    // An array of lines.  We split below, so this is initialized to one
+    // un-split line.
+    var listItems = [li];
+  
+    function walk(node) {
+      switch (node.nodeType) {
+        case 1:  // Element
+          if (nocode.test(node.className)) { break; }
+          if ('BR' === node.nodeName) {
+            breakAfter(node);
+            // Discard the <BR> since it is now flush against a </LI>.
+            if (node.parentNode) {
+              node.parentNode.removeChild(node);
+            }
+          } else {
+            for (var child = node.firstChild; child; child = child.nextSibling) {
+              walk(child);
+            }
+          }
+          break;
+        case 3: case 4:  // Text
+          if (isPreformatted) {
+            var text = node.nodeValue;
+            var match = text.match(lineBreak);
+            if (match) {
+              var firstLine = text.substring(0, match.index);
+              node.nodeValue = firstLine;
+              var tail = text.substring(match.index + match[0].length);
+              if (tail) {
+                var parent = node.parentNode;
+                parent.insertBefore(
+                    document.createTextNode(tail), node.nextSibling);
+              }
+              breakAfter(node);
+              if (!firstLine) {
+                // Don't leave blank text nodes in the DOM.
+                node.parentNode.removeChild(node);
+              }
+            }
+          }
+          break;
+      }
+    }
+  
+    // Split a line after the given node.
+    function breakAfter(lineEndNode) {
+      // If there's nothing to the right, then we can skip ending the line
+      // here, and move root-wards since splitting just before an end-tag
+      // would require us to create a bunch of empty copies.
+      while (!lineEndNode.nextSibling) {
+        lineEndNode = lineEndNode.parentNode;
+        if (!lineEndNode) { return; }
+      }
+  
+      function breakLeftOf(limit, copy) {
+        // Clone shallowly if this node needs to be on both sides of the break.
+        var rightSide = copy ? limit.cloneNode(false) : limit;
+        var parent = limit.parentNode;
+        if (parent) {
+          // We clone the parent chain.
+          // This helps us resurrect important styling elements that cross lines.
+          // E.g. in <i>Foo<br>Bar</i>
+          // should be rewritten to <li><i>Foo</i></li><li><i>Bar</i></li>.
+          var parentClone = breakLeftOf(parent, 1);
+          // Move the clone and everything to the right of the original
+          // onto the cloned parent.
+          var next = limit.nextSibling;
+          parentClone.appendChild(rightSide);
+          for (var sibling = next; sibling; sibling = next) {
+            next = sibling.nextSibling;
+            parentClone.appendChild(sibling);
+          }
+        }
+        return rightSide;
+      }
+  
+      var copiedListItem = breakLeftOf(lineEndNode.nextSibling, 0);
+  
+      // Walk the parent chain until we reach an unattached LI.
+      for (var parent;
+           // Check nodeType since IE invents document fragments.
+           (parent = copiedListItem.parentNode) && parent.nodeType === 1;) {
+        copiedListItem = parent;
+      }
+      // Put it on the list of lines for later processing.
+      listItems.push(copiedListItem);
+    }
+  
+    // Split lines while there are lines left to split.
+    for (var i = 0;  // Number of lines that have been split so far.
+         i < listItems.length;  // length updated by breakAfter calls.
+         ++i) {
+      walk(listItems[i]);
+    }
+  
+    // Make sure numeric indices show correctly.
+    if (opt_startLineNum === (opt_startLineNum|0)) {
+      listItems[0].setAttribute('value', opt_startLineNum);
+    }
+  
+    var ol = document.createElement('OL');
+    ol.className = 'linenums';
+    var offset = Math.max(0, ((opt_startLineNum - 1 /* zero index */)) | 0) || 0;
+    for (var i = 0, n = listItems.length; i < n; ++i) {
+      li = listItems[i];
+      // Stick a class on the LIs so that stylesheets can
+      // color odd/even rows, or any other row pattern that
+      // is co-prime with 10.
+      li.className = 'L' + ((i + offset) % 10);
+      if (!li.firstChild) {
+        li.appendChild(document.createTextNode('\xA0'));
+      }
+      ol.appendChild(li);
+    }
+  
+    node.appendChild(ol);
+  }
+
+  /**
+   * Breaks {@code job.sourceCode} around style boundaries in
+   * {@code job.decorations} and modifies {@code job.sourceNode} in place.
+   * @param {Object} job like <pre>{
+   *    sourceCode: {string} source as plain text,
+   *    spans: {Array.<number|Node>} alternating span start indices into source
+   *       and the text node or element (e.g. {@code <BR>}) corresponding to that
+   *       span.
+   *    decorations: {Array.<number|string} an array of style classes preceded
+   *       by the position at which they start in job.sourceCode in order
+   * }</pre>
+   * @private
+   */
+  function recombineTagsAndDecorations(job) {
+    var isIE = /\bMSIE\b/.test(navigator.userAgent);
+    var newlineRe = /\n/g;
+  
+    var source = job.sourceCode;
+    var sourceLength = source.length;
+    // Index into source after the last code-unit recombined.
+    var sourceIndex = 0;
+  
+    var spans = job.spans;
+    var nSpans = spans.length;
+    // Index into spans after the last span which ends at or before sourceIndex.
+    var spanIndex = 0;
+  
+    var decorations = job.decorations;
+    var nDecorations = decorations.length;
+    // Index into decorations after the last decoration which ends at or before
+    // sourceIndex.
+    var decorationIndex = 0;
+  
+    // Remove all zero-length decorations.
+    decorations[nDecorations] = sourceLength;
+    var decPos, i;
+    for (i = decPos = 0; i < nDecorations;) {
+      if (decorations[i] !== decorations[i + 2]) {
+        decorations[decPos++] = decorations[i++];
+        decorations[decPos++] = decorations[i++];
+      } else {
+        i += 2;
+      }
+    }
+    nDecorations = decPos;
+  
+    // Simplify decorations.
+    for (i = decPos = 0; i < nDecorations;) {
+      var startPos = decorations[i];
+      // Conflate all adjacent decorations that use the same style.
+      var startDec = decorations[i + 1];
+      var end = i + 2;
+      while (end + 2 <= nDecorations && decorations[end + 1] === startDec) {
+        end += 2;
+      }
+      decorations[decPos++] = startPos;
+      decorations[decPos++] = startDec;
+      i = end;
+    }
+  
+    nDecorations = decorations.length = decPos;
+  
+    var decoration = null;
+    while (spanIndex < nSpans) {
+      var spanStart = spans[spanIndex];
+      var spanEnd = spans[spanIndex + 2] || sourceLength;
+  
+      var decStart = decorations[decorationIndex];
+      var decEnd = decorations[decorationIndex + 2] || sourceLength;
+  
+      var end = Math.min(spanEnd, decEnd);
+  
+      var textNode = spans[spanIndex + 1];
+      var styledText;
+      if (textNode.nodeType !== 1  // Don't muck with <BR>s or <LI>s
+          // Don't introduce spans around empty text nodes.
+          && (styledText = source.substring(sourceIndex, end))) {
+        // This may seem bizarre, and it is.  Emitting LF on IE causes the
+        // code to display with spaces instead of line breaks.
+        // Emitting Windows standard issue linebreaks (CRLF) causes a blank
+        // space to appear at the beginning of every line but the first.
+        // Emitting an old Mac OS 9 line separator makes everything spiffy.
+        if (isIE) { styledText = styledText.replace(newlineRe, '\r'); }
+        textNode.nodeValue = styledText;
+        var document = textNode.ownerDocument;
+        var span = document.createElement('SPAN');
+        span.className = decorations[decorationIndex + 1];
+        var parentNode = textNode.parentNode;
+        parentNode.replaceChild(span, textNode);
+        span.appendChild(textNode);
+        if (sourceIndex < spanEnd) {  // Split off a text node.
+          spans[spanIndex + 1] = textNode
+              // TODO: Possibly optimize by using '' if there's no flicker.
+              = document.createTextNode(source.substring(end, spanEnd));
+          parentNode.insertBefore(textNode, span.nextSibling);
+        }
+      }
+  
+      sourceIndex = end;
+  
+      if (sourceIndex >= spanEnd) {
+        spanIndex += 2;
+      }
+      if (sourceIndex >= decEnd) {
+        decorationIndex += 2;
+      }
+    }
+  }
+
+
+  /** Maps language-specific file extensions to handlers. */
+  var langHandlerRegistry = {};
+  /** Register a language handler for the given file extensions.
+    * @param {function (Object)} handler a function from source code to a list
+    *      of decorations.  Takes a single argument job which describes the
+    *      state of the computation.   The single parameter has the form
+    *      {@code {
+    *        sourceCode: {string} as plain text.
+    *        decorations: {Array.<number|string>} an array of style classes
+    *                     preceded by the position at which they start in
+    *                     job.sourceCode in order.
+    *                     The language handler should assigned this field.
+    *        basePos: {int} the position of source in the larger source chunk.
+    *                 All positions in the output decorations array are relative
+    *                 to the larger source chunk.
+    *      } }
+    * @param {Array.<string>} fileExtensions
+    */
+  function registerLangHandler(handler, fileExtensions) {
+    for (var i = fileExtensions.length; --i >= 0;) {
+      var ext = fileExtensions[i];
+      if (!langHandlerRegistry.hasOwnProperty(ext)) {
+        langHandlerRegistry[ext] = handler;
+      } else if (window['console']) {
+        console['warn']('cannot override language handler %s', ext);
+      }
+    }
+  }
+  function langHandlerForExtension(extension, source) {
+    if (!(extension && langHandlerRegistry.hasOwnProperty(extension))) {
+      // Treat it as markup if the first non whitespace character is a < and
+      // the last non-whitespace character is a >.
+      extension = /^\s*</.test(source)
+          ? 'default-markup'
+          : 'default-code';
+    }
+    return langHandlerRegistry[extension];
+  }
+  registerLangHandler(decorateSource, ['default-code']);
+  registerLangHandler(
+      createSimpleLexer(
+          [],
+          [
+           [PR_PLAIN,       /^[^<?]+/],
+           [PR_DECLARATION, /^<!\w[^>]*(?:>|$)/],
+           [PR_COMMENT,     /^<\!--[\s\S]*?(?:-\->|$)/],
+           // Unescaped content in an unknown language
+           ['lang-',        /^<\?([\s\S]+?)(?:\?>|$)/],
+           ['lang-',        /^<%([\s\S]+?)(?:%>|$)/],
+           [PR_PUNCTUATION, /^(?:<[%?]|[%?]>)/],
+           ['lang-',        /^<xmp\b[^>]*>([\s\S]+?)<\/xmp\b[^>]*>/i],
+           // Unescaped content in javascript.  (Or possibly vbscript).
+           ['lang-js',      /^<script\b[^>]*>([\s\S]*?)(<\/script\b[^>]*>)/i],
+           // Contains unescaped stylesheet content
+           ['lang-css',     /^<style\b[^>]*>([\s\S]*?)(<\/style\b[^>]*>)/i],
+           ['lang-in.tag',  /^(<\/?[a-z][^<>]*>)/i]
+          ]),
+      ['default-markup', 'htm', 'html', 'mxml', 'xhtml', 'xml', 'xsl']);
+  registerLangHandler(
+      createSimpleLexer(
+          [
+           [PR_PLAIN,        /^[\s]+/, null, ' \t\r\n'],
+           [PR_ATTRIB_VALUE, /^(?:\"[^\"]*\"?|\'[^\']*\'?)/, null, '\"\'']
+           ],
+          [
+           [PR_TAG,          /^^<\/?[a-z](?:[\w.:-]*\w)?|\/?>$/i],
+           [PR_ATTRIB_NAME,  /^(?!style[\s=]|on)[a-z](?:[\w:-]*\w)?/i],
+           ['lang-uq.val',   /^=\s*([^>\'\"\s]*(?:[^>\'\"\s\/]|\/(?=\s)))/],
+           [PR_PUNCTUATION,  /^[=<>\/]+/],
+           ['lang-js',       /^on\w+\s*=\s*\"([^\"]+)\"/i],
+           ['lang-js',       /^on\w+\s*=\s*\'([^\']+)\'/i],
+           ['lang-js',       /^on\w+\s*=\s*([^\"\'>\s]+)/i],
+           ['lang-css',      /^style\s*=\s*\"([^\"]+)\"/i],
+           ['lang-css',      /^style\s*=\s*\'([^\']+)\'/i],
+           ['lang-css',      /^style\s*=\s*([^\"\'>\s]+)/i]
+           ]),
+      ['in.tag']);
+  registerLangHandler(
+      createSimpleLexer([], [[PR_ATTRIB_VALUE, /^[\s\S]+/]]), ['uq.val']);
+  registerLangHandler(sourceDecorator({
+          'keywords': CPP_KEYWORDS,
+          'hashComments': true,
+          'cStyleComments': true,
+          'types': C_TYPES
+        }), ['c', 'cc', 'cpp', 'cxx', 'cyc', 'm']);
+  registerLangHandler(sourceDecorator({
+          'keywords': 'null,true,false'
+        }), ['json']);
+  registerLangHandler(sourceDecorator({
+          'keywords': CSHARP_KEYWORDS,
+          'hashComments': true,
+          'cStyleComments': true,
+          'verbatimStrings': true,
+          'types': C_TYPES
+        }), ['cs']);
+  registerLangHandler(sourceDecorator({
+          'keywords': JAVA_KEYWORDS,
+          'cStyleComments': true
+        }), ['java']);
+  registerLangHandler(sourceDecorator({
+          'keywords': SH_KEYWORDS,
+          'hashComments': true,
+          'multiLineStrings': true
+        }), ['bsh', 'csh', 'sh']);
+  registerLangHandler(sourceDecorator({
+          'keywords': PYTHON_KEYWORDS,
+          'hashComments': true,
+          'multiLineStrings': true,
+          'tripleQuotedStrings': true
+        }), ['cv', 'py']);
+  registerLangHandler(sourceDecorator({
+          'keywords': PERL_KEYWORDS,
+          'hashComments': true,
+          'multiLineStrings': true,
+          'regexLiterals': true
+        }), ['perl', 'pl', 'pm']);
+  registerLangHandler(sourceDecorator({
+          'keywords': RUBY_KEYWORDS,
+          'hashComments': true,
+          'multiLineStrings': true,
+          'regexLiterals': true
+        }), ['rb']);
+  registerLangHandler(sourceDecorator({
+          'keywords': JSCRIPT_KEYWORDS,
+          'cStyleComments': true,
+          'regexLiterals': true
+        }), ['js']);
+  registerLangHandler(sourceDecorator({
+          'keywords': COFFEE_KEYWORDS,
+          'hashComments': 3,  // ### style block comments
+          'cStyleComments': true,
+          'multilineStrings': true,
+          'tripleQuotedStrings': true,
+          'regexLiterals': true
+        }), ['coffee']);
+  registerLangHandler(createSimpleLexer([], [[PR_STRING, /^[\s\S]+/]]), ['regex']);
+
+  function applyDecorator(job) {
+    var opt_langExtension = job.langExtension;
+
+    try {
+      // Extract tags, and convert the source code to plain text.
+      var sourceAndSpans = extractSourceSpans(job.sourceNode);
+      /** Plain text. @type {string} */
+      var source = sourceAndSpans.sourceCode;
+      job.sourceCode = source;
+      job.spans = sourceAndSpans.spans;
+      job.basePos = 0;
+
+      // Apply the appropriate language handler
+      langHandlerForExtension(opt_langExtension, source)(job);
+
+      // Integrate the decorations and tags back into the source code,
+      // modifying the sourceNode in place.
+      recombineTagsAndDecorations(job);
+    } catch (e) {
+      if ('console' in window) {
+        console['log'](e && e['stack'] ? e['stack'] : e);
+      }
+    }
+  }
+
+  /**
+   * @param sourceCodeHtml {string} The HTML to pretty print.
+   * @param opt_langExtension {string} The language name to use.
+   *     Typically, a filename extension like 'cpp' or 'java'.
+   * @param opt_numberLines {number|boolean} True to number lines,
+   *     or the 1-indexed number of the first line in sourceCodeHtml.
+   */
+  function prettyPrintOne(sourceCodeHtml, opt_langExtension, opt_numberLines) {
+    var container = document.createElement('PRE');
+    // This could cause images to load and onload listeners to fire.
+    // E.g. <img onerror="alert(1337)" src="nosuchimage.png">.
+    // We assume that the inner HTML is from a trusted source.
+    container.innerHTML = sourceCodeHtml;
+    if (opt_numberLines) {
+      numberLines(container, opt_numberLines);
+    }
+
+    var job = {
+      langExtension: opt_langExtension,
+      numberLines: opt_numberLines,
+      sourceNode: container
+    };
+    applyDecorator(job);
+    return container.innerHTML;
+  }
+
+  function prettyPrint(opt_whenDone) {
+    function byTagName(tn) { return document.getElementsByTagName(tn); }
+    // fetch a list of nodes to rewrite
+    var codeSegments = [byTagName('pre'), byTagName('code'), byTagName('xmp')];
+    var elements = [];
+    for (var i = 0; i < codeSegments.length; ++i) {
+      for (var j = 0, n = codeSegments[i].length; j < n; ++j) {
+        elements.push(codeSegments[i][j]);
+      }
+    }
+    codeSegments = null;
+
+    var clock = Date;
+    if (!clock['now']) {
+      clock = { 'now': function () { return +(new Date); } };
+    }
+
+    // The loop is broken into a series of continuations to make sure that we
+    // don't make the browser unresponsive when rewriting a large page.
+    var k = 0;
+    var prettyPrintingJob;
+
+    var langExtensionRe = /\blang(?:uage)?-([\w.]+)(?!\S)/;
+    var prettyPrintRe = /\bprettyprint\b/;
+
+    function doWork() {
+      var endTime = (window['PR_SHOULD_USE_CONTINUATION'] ?
+                     clock['now']() + 250 /* ms */ :
+                     Infinity);
+      for (; k < elements.length && clock['now']() < endTime; k++) {
+        var cs = elements[k];
+        var className = cs.className;
+        if (className.indexOf('prettyprint') >= 0) {
+          // If the classes includes a language extensions, use it.
+          // Language extensions can be specified like
+          //     <pre class="prettyprint lang-cpp">
+          // the language extension "cpp" is used to find a language handler as
+          // passed to PR.registerLangHandler.
+          // HTML5 recommends that a language be specified using "language-"
+          // as the prefix instead.  Google Code Prettify supports both.
+          // http://dev.w3.org/html5/spec-author-view/the-code-element.html
+          var langExtension = className.match(langExtensionRe);
+          // Support <pre class="prettyprint"><code class="language-c">
+          var wrapper;
+          if (!langExtension && (wrapper = childContentWrapper(cs))
+              && "CODE" === wrapper.tagName) {
+            langExtension = wrapper.className.match(langExtensionRe);
+          }
+
+          if (langExtension) {
+            langExtension = langExtension[1];
+          }
+
+          // make sure this is not nested in an already prettified element
+          var nested = false;
+          for (var p = cs.parentNode; p; p = p.parentNode) {
+            if ((p.tagName === 'pre' || p.tagName === 'code' ||
+                 p.tagName === 'xmp') &&
+                p.className && p.className.indexOf('prettyprint') >= 0) {
+              nested = true;
+              break;
+            }
+          }
+          if (!nested) {
+            // Look for a class like linenums or linenums:<n> where <n> is the
+            // 1-indexed number of the first line.
+            var lineNums = cs.className.match(/\blinenums\b(?::(\d+))?/);
+            lineNums = lineNums
+                  ? lineNums[1] && lineNums[1].length ? +lineNums[1] : true
+                  : false;
+            if (lineNums) { numberLines(cs, lineNums); }
+
+            // do the pretty printing
+            prettyPrintingJob = {
+              langExtension: langExtension,
+              sourceNode: cs,
+              numberLines: lineNums
+            };
+            applyDecorator(prettyPrintingJob);
+          }
+        }
+      }
+      if (k < elements.length) {
+        // finish up in a continuation
+        setTimeout(doWork, 250);
+      } else if (opt_whenDone) {
+        opt_whenDone();
+      }
+    }
+
+    doWork();
+  }
+
+   /**
+    * Find all the {@code <pre>} and {@code <code>} tags in the DOM with
+    * {@code class=prettyprint} and prettify them.
+    *
+    * @param {Function?} opt_whenDone if specified, called when the last entry
+    *     has been finished.
+    */
+  window['prettyPrintOne'] = prettyPrintOne;
+   /**
+    * Pretty print a chunk of code.
+    *
+    * @param {string} sourceCodeHtml code as html
+    * @return {string} code as html, but prettier
+    */
+  window['prettyPrint'] = prettyPrint;
+   /**
+    * Contains functions for creating and registering new language handlers.
+    * @type {Object}
+    */
+  window['PR'] = {
+        'createSimpleLexer': createSimpleLexer,
+        'registerLangHandler': registerLangHandler,
+        'sourceDecorator': sourceDecorator,
+        'PR_ATTRIB_NAME': PR_ATTRIB_NAME,
+        'PR_ATTRIB_VALUE': PR_ATTRIB_VALUE,
+        'PR_COMMENT': PR_COMMENT,
+        'PR_DECLARATION': PR_DECLARATION,
+        'PR_KEYWORD': PR_KEYWORD,
+        'PR_LITERAL': PR_LITERAL,
+        'PR_NOCODE': PR_NOCODE,
+        'PR_PLAIN': PR_PLAIN,
+        'PR_PUNCTUATION': PR_PUNCTUATION,
+        'PR_SOURCE': PR_SOURCE,
+        'PR_STRING': PR_STRING,
+        'PR_TAG': PR_TAG,
+        'PR_TYPE': PR_TYPE
+      };
+})();
diff -r 010bfb3a3463 -r 56c4cd16d849 vendor/assets/stylesheets/bootstrap-prettify.css
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/assets/stylesheets/bootstrap-prettify.css	Sun May 12 12:00:17 2013 +0900
@@ -0,0 +1,30 @@
+.com { color: #93a1a1; }
+.lit { color: #195f91; }
+.pun, .opn, .clo { color: #93a1a1; }
+.fun { color: #dc322f; }
+.str, .atv { color: #D14; }
+.kwd, .prettyprint .tag { color: #1e347b; }
+.typ, .atn, .dec, .var { color: teal; }
+.pln { color: #48484c; }
+
+.prettyprint {
+  padding: 8px;
+  background-color: #f7f7f9;
+  border: 1px solid #e1e1e8;
+}
+.prettyprint.linenums {
+  -webkit-box-shadow: inset 40px 0 0 #fbfbfc, inset 41px 0 0 #ececf0;
+     -moz-box-shadow: inset 40px 0 0 #fbfbfc, inset 41px 0 0 #ececf0;
+          box-shadow: inset 40px 0 0 #fbfbfc, inset 41px 0 0 #ececf0;
+}
+
+/* Specify class=linenums on a pre to get line numbering */
+ol.linenums {
+  margin: 0 0 0 33px; /* IE indents via margin-left */
+}
+ol.linenums li {
+  padding-left: 12px;
+  color: #bebec5;
+  line-height: 20px;
+  text-shadow: 0 1px 0 #fff;
+}
\ No newline at end of file