diff --git a/lib/ace/ext/modelist.js b/lib/ace/ext/modelist.js
new file mode 100644
index 00000000..f3bf695b
--- /dev/null
+++ b/lib/ace/ext/modelist.js
@@ -0,0 +1,140 @@
+define(function(require, exports, module) {
+"use strict";
+
+/************** modes ***********************/
+/**
+ * An array containing information about rendering modes.
+ */
+var modes = [];
+/**
+ * Suggests a mode based on the file extension present in the given path
+ * @param {string} path The path to the file
+ * @returns {object} Returns an object containing information about the
+ *  suggested mode.
+ */
+function getModeFromPath(path) {
+    var mode = modesByName.text;
+    var fileName = path.split(/[\/\\]/).pop();
+    for (var i = 0; i < modes.length; i++) {
+        if (modes[i].supportsFile(fileName)) {
+            mode = modes[i];
+            break;
+        }
+    }
+    return mode;
+}
+
+var Mode = function(name, desc, extensions) {
+    this.name = name;
+    this.desc = desc;
+    this.mode = "ace/mode/" + name;
+    if (/\^/.test(extensions)) {
+        var re = extensions.replace(/\|(\^)?/g, function(a, b){
+            return "$|" + (b ? "^" : "^.*\\.");
+        }) + "$";
+    } else {
+        var re = "^.*\\.(" + extensions + ")$";
+    }   
+
+    this.extRe = new RegExp(re, "gi");
+};
+
+Mode.prototype.supportsFile = function(filename) {
+    return filename.match(this.extRe);
+};
+
+/**
+ * An object containing properties that map to rendering modes. Each property
+ *  contains an array where element 0 is the name of the mode and element 1
+ *  contains information about the file extensions where this mode is
+ *  applicable.
+ */
+var modesByName = {
+    abap:       ["ABAP"         , "abap"],
+    asciidoc:   ["AsciiDoc"     , "asciidoc"],
+    c9search:   ["C9Search"     , "c9search_results"],
+    coffee:     ["CoffeeScript" , "^Cakefile|coffee|cf|cson"],
+    coldfusion: ["ColdFusion"   , "cfm"],
+    csharp:     ["C#"           , "cs"],
+    css:        ["CSS"          , "css"],
+    curly:      ["Curly"        , "curly"],
+    dart:       ["Dart"         , "dart"],
+    diff:       ["Diff"         , "diff|patch"],
+    dot:        ["Dot"          , "dot"],
+    ftl:        ["FreeMarker"   , "ftl"],
+    glsl:       ["Glsl"         , "glsl|frag|vert"],
+    golang:     ["Go"           , "go"],
+    groovy:     ["Groovy"       , "groovy"],
+    haxe:       ["haXe"         , "hx"],
+    haml:       ["HAML"         , "haml"],
+    html:       ["HTML"         , "htm|html|xhtml"],
+    c_cpp:      ["C/C++"        , "c|cc|cpp|cxx|h|hh|hpp"],
+    clojure:    ["Clojure"      , "clj"],
+    jade:       ["Jade"         , "jade"],
+    java:       ["Java"         , "java"],
+    jsp:        ["JSP"          , "jsp"],
+    javascript: ["JavaScript"   , "js"],
+    json:       ["JSON"         , "json"],
+    jsx:        ["JSX"          , "jsx"],
+    latex:      ["LaTeX"        , "latex|tex|ltx|bib"],
+    less:       ["LESS"         , "less"],
+    lisp:       ["Lisp"         , "lisp"],
+    scheme:     ["Scheme"       , "scm|rkt"],
+    liquid:     ["Liquid"       , "liquid"],
+    livescript: ["LiveScript"   , "ls"],
+    logiql:     ["LogiQL"       , "logic|lql"],
+    lua:        ["Lua"          , "lua"],
+    luapage:    ["LuaPage"      , "lp"], // http://keplerproject.github.com/cgilua/manual.html#templates
+    lucene:     ["Lucene"       , "lucene"],
+    lsl:        ["LSL"          , "lsl"],
+    makefile:   ["Makefile"     , "^GNUmakefile|^makefile|^Makefile|^OCamlMakefile|make"],
+    markdown:   ["Markdown"     , "md|markdown"],
+    mushcode:   ["TinyMUSH"     , "mc|mush"],
+    objectivec: ["Objective-C"  , "m"],
+    ocaml:      ["OCaml"        , "ml|mli"],
+    pascal:     ["Pascal"       , "pas|p"],
+    perl:       ["Perl"         , "pl|pm"],
+    pgsql:      ["pgSQL"        , "pgsql"],
+    php:        ["PHP"          , "php|phtml"],
+    powershell: ["Powershell"   , "ps1"],
+    python:     ["Python"       , "py"],
+    r:          ["R"            , "r"],
+    rdoc:       ["RDoc"         , "Rd"],
+    rhtml:      ["RHTML"        , "Rhtml"],
+    ruby:       ["Ruby"         , "ru|gemspec|rake|rb"],
+    scad:       ["OpenSCAD"     , "scad"],
+    scala:      ["Scala"        , "scala"],
+    scss:       ["SCSS"         , "scss"],
+    sass:       ["SASS"         , "sass"],
+    sh:         ["SH"           , "sh|bash|bat"],
+    sql:        ["SQL"          , "sql"],
+    stylus:     ["Stylus"       , "styl|stylus"],
+    svg:        ["SVG"          , "svg"],
+    tcl:        ["Tcl"          , "tcl"],
+    tex:        ["Tex"          , "tex"],
+    text:       ["Text"         , "txt"],
+    textile:    ["Textile"      , "textile"],
+    tmsnippet:  ["tmSnippet"    , "tmSnippet"],
+    toml:       ["toml"         , "toml"],
+    typescript: ["Typescript"   , "typescript|ts|str"],
+    vbscript:   ["VBScript"     , "vbs"],
+    xml:        ["XML"          , "xml|rdf|rss|wsdl|xslt|atom|mathml|mml|xul|xbl"],
+    xquery:     ["XQuery"       , "xq"],
+    yaml:       ["YAML"         , "yaml"]
+};
+
+for (var name in modesByName) {
+    var mode = modesByName[name];
+    mode = new Mode(name, mode[0], mode[1]);
+    modesByName[name] = mode;
+    modes.push(mode);
+}
+
+module.exports = {
+    getModeFromPath: getModeFromPath,
+    modes: modes,
+    modesByName: modesByName
+};
+
+});
+