diff --git a/client/components/Login.js b/client/components/Login.js
index 167a40a..f3b94a5 100644
--- a/client/components/Login.js
+++ b/client/components/Login.js
@@ -32,7 +32,12 @@ class Login extends Component {
             <form className="form col-sm-6 col-sm-offset-3" onSubmit={this._onSubmit.bind(this)}>
               <div className="form-group label-floating">
                 <label htmlFor="username" className="control-label">Username</label>
-                <input type="text" id="username" className="form-control" value={this.state.username} onChange={this._changeUsername.bind(this)} />
+                <input
+                  type="text"
+                  id="username"
+                  className="form-control"
+                  value={this.state.username}
+                  onChange={this._changeUsername.bind(this)} />
               </div>
 
               <div className="form-group label-floating">
@@ -42,7 +47,7 @@ class Login extends Component {
 
               <center>
                 <div className="row">
-                  <button className="btn btn-raised" type="submit">Login</button>
+                  <button id="login-register-btn" className="oj-btn btn btn-raised" type="submit">Login</button>
                   <br />
                   <div className="row text-center">{this.state.passwordFail ? ( <p className="failed-validation">Wrong password, fam.</p> ) : null }
                     {this.state.usernameFail ? ( <p className="failed-validation">Username doesn't exist. Please register an account with us.</p> ) : null }
diff --git a/client/components/Register.js b/client/components/Register.js
index 060826c..d925faa 100644
--- a/client/components/Register.js
+++ b/client/components/Register.js
@@ -35,7 +35,7 @@ class Register extends Component {
           <input id="password" type="password" className="form-control" value={this.state.password} onChange={this._changePassword.bind(this)} />
         </div>
         <center>
-        <button className="btn btn-raised" type="submit">Sign Up</button>
+        <button id="login-register-btn" className="oj-btn btn btn-raised" type="submit">Sign Up</button>
         <br />
         <div className="row text-center"> {this.state.usernameExists ? (
           <p className="failed-validation">Username is taken already! Please use a different one.</p>
diff --git a/client/containers/CodeEditor.js b/client/containers/CodeEditor.js
index 3667149..1ff4881 100644
--- a/client/containers/CodeEditor.js
+++ b/client/containers/CodeEditor.js
@@ -43,9 +43,11 @@ class CodeEditor extends Component {
       fontSize: '11pt',
       minLines: 12,
       maxLines: 12,
-      enableBasicAutocompletion: true,
+      enableBasicAutocompletion: false,
       enableSnippets: false,
-      enableLiveAutocompletion: false
+      enableLiveAutocompletion: true,
+      liveAutocompletionDelay: 100,
+      liveAutocompletionThreshold: 2
     });
 
     // autocomplete tries to fire on every input
diff --git a/client/containers/CodeEditorMulti.js b/client/containers/CodeEditorMulti.js
index 36f521d..f00470b 100644
--- a/client/containers/CodeEditorMulti.js
+++ b/client/containers/CodeEditorMulti.js
@@ -35,9 +35,11 @@ class CodeEditorMulti extends Component {
       fontSize: '11pt',
       minLines: 12,
       maxLines: 12,
-      enableBasicAutocompletion: true,
+      enableBasicAutocompletion: false,
       enableSnippets: false,
-      enableLiveAutocompletion: false
+      enableLiveAutocompletion: true,
+      liveAutocompletionDelay: 100,
+      liveAutocompletionThreshold: 2
     });
 
     // autocomplete tries to fire on every input
diff --git a/client/containers/LandingPageMulti.js b/client/containers/LandingPageMulti.js
index 49484fa..05623da 100644
--- a/client/containers/LandingPageMulti.js
+++ b/client/containers/LandingPageMulti.js
@@ -95,18 +95,36 @@ class LandingPageMulti extends Component {
               <div className="col-sm-12 text-center">
 
               <center>
-                <button type="button" onClick={this.handleSubmitPublic.bind(this)} className="btn btn-raised btn-primary landing-btn">Join Public Room</button>
+                <button
+                  id="join-multi-btn"
+                  type="button"
+                  onClick={this.handleSubmitPublic.bind(this)}
+                  className="oj-btn btn btn-raised landing-btn">
+                  Join Public Room
+                </button>
               </center>
 
               <h2 className="text-center"><strong>--- OR ---</strong></h2>
 
-              <center><form className="form-inline" onSubmit={this.handleSubmitPrivate.bind(this)}>
-                <div className="form-group label-floating">
-                  <label htmlFor="roomId" className="control-label">Room ID (Number)</label>
-                    <input type="number" id="roomId" className="form-control text-center" value={this.state.privateRoomId} onChange={this.changePrivateRoomId.bind(this)} />
+              <center>
+                <form className="form-inline" onSubmit={this.handleSubmitPrivate.bind(this)}>
+                  <div className="form-group label-floating">
+                    <label htmlFor="roomId" className="control-label">Room ID (Number)</label>
+                      <input
+                        type="number"
+                        id="roomId"
+                        className="form-control text-center"
+                        value={this.state.privateRoomId}
+                        onChange={this.changePrivateRoomId.bind(this)} />
                   </div>
-                 </form>
-                <button type="button" onClick={this.handleSubmitPrivate.bind(this)} className="btn btn-raised btn-primary landing-btn">Create/Join Private Room</button>
+                </form>
+                <button
+                  id="join-multi-btn"
+                  type="button"
+                  onClick={this.handleSubmitPrivate.bind(this)}
+                  className="oj-btn btn btn-raised landing-btn">
+                  Create/Join Private Room
+                </button>
               </center>
             </div>
           </div>
diff --git a/client/lib/ace/src-min/ext-language_tools.js b/client/lib/ace/src-min/ext-language_tools.js
index 88ffcda..963c342 100755
--- a/client/lib/ace/src-min/ext-language_tools.js
+++ b/client/lib/ace/src-min/ext-language_tools.js
@@ -1,4 +1,1957 @@
-define("ace/snippets",["require","exports","module","ace/lib/oop","ace/lib/event_emitter","ace/lib/lang","ace/range","ace/anchor","ace/keyboard/hash_handler","ace/tokenizer","ace/lib/dom","ace/editor"],function(e,t,n){"use strict";var r=e("./lib/oop"),i=e("./lib/event_emitter").EventEmitter,s=e("./lib/lang"),o=e("./range").Range,u=e("./anchor").Anchor,a=e("./keyboard/hash_handler").HashHandler,f=e("./tokenizer").Tokenizer,l=o.comparePoints,c=function(){this.snippetMap={},this.snippetNameMap={}};(function(){r.implement(this,i),this.getTokenizer=function(){function e(e,t,n){return e=e.substr(1),/^\d+$/.test(e)&&!n.inFormatString?[{tabstopId:parseInt(e,10)}]:[{text:e}]}function t(e){return"(?:[^\\\\"+e+"]|\\\\.)"}return c.$tokenizer=new f({start:[{regex:/:/,onMatch:function(e,t,n){return n.length&&n[0].expectIf?(n[0].expectIf=!1,n[0].elseBranch=n[0],[n[0]]):":"}},{regex:/\\./,onMatch:function(e,t,n){var r=e[1];return r=="}"&&n.length?e=r:"`$\\".indexOf(r)!=-1?e=r:n.inFormatString&&(r=="n"?e="\n":r=="t"?e="\n":"ulULE".indexOf(r)!=-1&&(e={changeCase:r,local:r>"a"})),[e]}},{regex:/}/,onMatch:function(e,t,n){return[n.length?n.shift():e]}},{regex:/\$(?:\d+|\w+)/,onMatch:e},{regex:/\$\{[\dA-Z_a-z]+/,onMatch:function(t,n,r){var i=e(t.substr(1),n,r);return r.unshift(i[0]),i},next:"snippetVar"},{regex:/\n/,token:"newline",merge:!1}],snippetVar:[{regex:"\\|"+t("\\|")+"*\\|",onMatch:function(e,t,n){n[0].choices=e.slice(1,-1).split(",")},next:"start"},{regex:"/("+t("/")+"+)/(?:("+t("/")+"*)/)(\\w*):?",onMatch:function(e,t,n){var r=n[0];return r.fmtString=e,e=this.splitRegex.exec(e),r.guard=e[1],r.fmt=e[2],r.flag=e[3],""},next:"start"},{regex:"`"+t("`")+"*`",onMatch:function(e,t,n){return n[0].code=e.splice(1,-1),""},next:"start"},{regex:"\\?",onMatch:function(e,t,n){n[0]&&(n[0].expectIf=!0)},next:"start"},{regex:"([^:}\\\\]|\\\\.)*:?",token:"",next:"start"}],formatString:[{regex:"/("+t("/")+"+)/",token:"regex"},{regex:"",onMatch:function(e,t,n){n.inFormatString=!0},next:"start"}]}),c.prototype.getTokenizer=function(){return c.$tokenizer},c.$tokenizer},this.tokenizeTmSnippet=function(e,t){return this.getTokenizer().getLineTokens(e,t).tokens.map(function(e){return e.value||e})},this.$getDefaultValue=function(e,t){if(/^[A-Z]\d+$/.test(t)){var n=t.substr(1);return(this.variables[t[0]+"__"]||{})[n]}if(/^\d+$/.test(t))return(this.variables.__||{})[t];t=t.replace(/^TM_/,"");if(!e)return;var r=e.session;switch(t){case"CURRENT_WORD":var i=r.getWordRange();case"SELECTION":case"SELECTED_TEXT":return r.getTextRange(i);case"CURRENT_LINE":return r.getLine(e.getCursorPosition().row);case"PREV_LINE":return r.getLine(e.getCursorPosition().row-1);case"LINE_INDEX":return e.getCursorPosition().column;case"LINE_NUMBER":return e.getCursorPosition().row+1;case"SOFT_TABS":return r.getUseSoftTabs()?"YES":"NO";case"TAB_SIZE":return r.getTabSize();case"FILENAME":case"FILEPATH":return"";case"FULLNAME":return"Ace"}},this.variables={},this.getVariableValue=function(e,t){return this.variables.hasOwnProperty(t)?this.variables[t](e,t)||"":this.$getDefaultValue(e,t)||""},this.tmStrFormat=function(e,t,n){var r=t.flag||"",i=t.guard;i=new RegExp(i,r.replace(/[^gi]/,""));var s=this.tokenizeTmSnippet(t.fmt,"formatString"),o=this,u=e.replace(i,function(){o.variables.__=arguments;var e=o.resolveVariables(s,n),t="E";for(var r=0;r<e.length;r++){var i=e[r];if(typeof i=="object"){e[r]="";if(i.changeCase&&i.local){var u=e[r+1];u&&typeof u=="string"&&(i.changeCase=="u"?e[r]=u[0].toUpperCase():e[r]=u[0].toLowerCase(),e[r+1]=u.substr(1))}else i.changeCase&&(t=i.changeCase)}else t=="U"?e[r]=i.toUpperCase():t=="L"&&(e[r]=i.toLowerCase())}return e.join("")});return this.variables.__=null,u},this.resolveVariables=function(e,t){function o(t){var n=e.indexOf(t,r+1);n!=-1&&(r=n)}var n=[];for(var r=0;r<e.length;r++){var i=e[r];if(typeof i=="string")n.push(i);else{if(typeof i!="object")continue;if(i.skip)o(i);else{if(i.processed<r)continue;if(i.text){var s=this.getVariableValue(t,i.text);s&&i.fmtString&&(s=this.tmStrFormat(s,i)),i.processed=r,i.expectIf==null?s&&(n.push(s),o(i)):s?i.skip=i.elseBranch:o(i)}else i.tabstopId!=null?n.push(i):i.changeCase!=null&&n.push(i)}}}return n},this.insertSnippetForSelection=function(e,t){function f(e){var t=[];for(var n=0;n<e.length;n++){var r=e[n];if(typeof r=="object"){if(a[r.tabstopId])continue;var i=e.lastIndexOf(r,n-1);r=t[i]||{tabstopId:r.tabstopId}}t[n]=r}return t}var n=e.getCursorPosition(),r=e.session.getLine(n.row),i=e.session.getTabString(),s=r.match(/^\s*/)[0];n.column<s.length&&(s=s.slice(0,n.column));var o=this.tokenizeTmSnippet(t);o=this.resolveVariables(o,e),o=o.map(function(e){return e=="\n"?e+s:typeof e=="string"?e.replace(/\t/g,i):e});var u=[];o.forEach(function(e,t){if(typeof e!="object")return;var n=e.tabstopId,r=u[n];r||(r=u[n]=[],r.index=n,r.value="");if(r.indexOf(e)!==-1)return;r.push(e);var i=o.indexOf(e,t+1);if(i===-1)return;var s=o.slice(t+1,i),a=s.some(function(e){return typeof e=="object"});a&&!r.value?r.value=s:s.length&&(!r.value||typeof r.value!="string")&&(r.value=s.join(""))}),u.forEach(function(e){e.length=0});var a={};for(var l=0;l<o.length;l++){var c=o[l];if(typeof c!="object")continue;var p=c.tabstopId,d=o.indexOf(c,l+1);if(a[p]){a[p]===c&&(a[p]=null);continue}var v=u[p],m=typeof v.value=="string"?[v.value]:f(v.value);m.unshift(l+1,Math.max(0,d-l)),m.push(c),a[p]=c,o.splice.apply(o,m),v.indexOf(c)===-1&&v.push(c)}var g=0,y=0,b="";o.forEach(function(e){typeof e=="string"?(e[0]==="\n"?(y=e.length-1,g++):y+=e.length,b+=e):e.start?e.end={row:g,column:y}:e.start={row:g,column:y}});var w=e.getSelectionRange(),E=e.session.replace(w,b),S=new h(e),x=e.inVirtualSelectionMode&&e.selection.index;S.addTabstops(u,w.start,E,x)},this.insertSnippet=function(e,t){var n=this;if(e.inVirtualSelectionMode)return n.insertSnippetForSelection(e,t);e.forEachSelection(function(){n.insertSnippetForSelection(e,t)},null,{keepOrder:!0}),e.tabstopManager&&e.tabstopManager.tabNext()},this.$getScope=function(e){var t=e.session.$mode.$id||"";t=t.split("/").pop();if(t==="html"||t==="php"){t==="php"&&!e.session.$mode.inlinePhp&&(t="html");var n=e.getCursorPosition(),r=e.session.getState(n.row);typeof r=="object"&&(r=r[0]),r.substring&&(r.substring(0,3)=="js-"?t="javascript":r.substring(0,4)=="css-"?t="css":r.substring(0,4)=="php-"&&(t="php"))}return t},this.getActiveScopes=function(e){var t=this.$getScope(e),n=[t],r=this.snippetMap;return r[t]&&r[t].includeScopes&&n.push.apply(n,r[t].includeScopes),n.push("_"),n},this.expandWithTab=function(e,t){var n=this,r=e.forEachSelection(function(){return n.expandSnippetForSelection(e,t)},null,{keepOrder:!0});return r&&e.tabstopManager&&e.tabstopManager.tabNext(),r},this.expandSnippetForSelection=function(e,t){var n=e.getCursorPosition(),r=e.session.getLine(n.row),i=r.substring(0,n.column),s=r.substr(n.column),o=this.snippetMap,u;return this.getActiveScopes(e).some(function(e){var t=o[e];return t&&(u=this.findMatchingSnippet(t,i,s)),!!u},this),u?t&&t.dryRun?!0:(e.session.doc.removeInLine(n.row,n.column-u.replaceBefore.length,n.column+u.replaceAfter.length),this.variables.M__=u.matchBefore,this.variables.T__=u.matchAfter,this.insertSnippetForSelection(e,u.content),this.variables.M__=this.variables.T__=null,!0):!1},this.findMatchingSnippet=function(e,t,n){for(var r=e.length;r--;){var i=e[r];if(i.startRe&&!i.startRe.test(t))continue;if(i.endRe&&!i.endRe.test(n))continue;if(!i.startRe&&!i.endRe)continue;return i.matchBefore=i.startRe?i.startRe.exec(t):[""],i.matchAfter=i.endRe?i.endRe.exec(n):[""],i.replaceBefore=i.triggerRe?i.triggerRe.exec(t)[0]:"",i.replaceAfter=i.endTriggerRe?i.endTriggerRe.exec(n)[0]:"",i}},this.snippetMap={},this.snippetNameMap={},this.register=function(e,t){function o(e){return e&&!/^\^?\(.*\)\$?$|^\\b$/.test(e)&&(e="(?:"+e+")"),e||""}function u(e,t,n){return e=o(e),t=o(t),n?(e=t+e,e&&e[e.length-1]!="$"&&(e+="$")):(e+=t,e&&e[0]!="^"&&(e="^"+e)),new RegExp(e)}function a(e){e.scope||(e.scope=t||"_"),t=e.scope,n[t]||(n[t]=[],r[t]={});var o=r[t];if(e.name){var a=o[e.name];a&&i.unregister(a),o[e.name]=e}n[t].push(e),e.tabTrigger&&!e.trigger&&(!e.guard&&/^\w/.test(e.tabTrigger)&&(e.guard="\\b"),e.trigger=s.escapeRegExp(e.tabTrigger));if(!e.trigger&&!e.guard&&!e.endTrigger&&!e.endGuard)return;e.startRe=u(e.trigger,e.guard,!0),e.triggerRe=new RegExp(e.trigger,"",!0),e.endRe=u(e.endTrigger,e.endGuard,!0),e.endTriggerRe=new RegExp(e.endTrigger,"",!0)}var n=this.snippetMap,r=this.snippetNameMap,i=this;e||(e=[]),e&&e.content?a(e):Array.isArray(e)&&e.forEach(a),this._signal("registerSnippets",{scope:t})},this.unregister=function(e,t){function i(e){var i=r[e.scope||t];if(i&&i[e.name]){delete i[e.name];var s=n[e.scope||t],o=s&&s.indexOf(e);o>=0&&s.splice(o,1)}}var n=this.snippetMap,r=this.snippetNameMap;e.content?i(e):Array.isArray(e)&&e.forEach(i)},this.parseSnippetFile=function(e){e=e.replace(/\r/g,"");var t=[],n={},r=/^#.*|^({[\s\S]*})\s*$|^(\S+) (.*)$|^((?:\n*\t.*)+)/gm,i;while(i=r.exec(e)){if(i[1])try{n=JSON.parse(i[1]),t.push(n)}catch(s){}if(i[4])n.content=i[4].replace(/^\t/gm,""),t.push(n),n={};else{var o=i[2],u=i[3];if(o=="regex"){var a=/\/((?:[^\/\\]|\\.)*)|$/g;n.guard=a.exec(u)[1],n.trigger=a.exec(u)[1],n.endTrigger=a.exec(u)[1],n.endGuard=a.exec(u)[1]}else o=="snippet"?(n.tabTrigger=u.match(/^\S*/)[0],n.name||(n.name=u)):n[o]=u}}return t},this.getSnippetByName=function(e,t){var n=this.snippetNameMap,r;return this.getActiveScopes(t).some(function(t){var i=n[t];return i&&(r=i[e]),!!r},this),r}}).call(c.prototype);var h=function(e){if(e.tabstopManager)return e.tabstopManager;e.tabstopManager=this,this.$onChange=this.onChange.bind(this),this.$onChangeSelection=s.delayedCall(this.onChangeSelection.bind(this)).schedule,this.$onChangeSession=this.onChangeSession.bind(this),this.$onAfterExec=this.onAfterExec.bind(this),this.attach(e)};(function(){this.attach=function(e){this.index=0,this.ranges=[],this.tabstops=[],this.$openTabstops=null,this.selectedTabstop=null,this.editor=e,this.editor.on("change",this.$onChange),this.editor.on("changeSelection",this.$onChangeSelection),this.editor.on("changeSession",this.$onChangeSession),this.editor.commands.on("afterExec",this.$onAfterExec),this.editor.keyBinding.addKeyboardHandler(this.keyboardHandler)},this.detach=function(){this.tabstops.forEach(this.removeTabstopMarkers,this),this.ranges=null,this.tabstops=null,this.selectedTabstop=null,this.editor.removeListener("change",this.$onChange),this.editor.removeListener("changeSelection",this.$onChangeSelection),this.editor.removeListener("changeSession",this.$onChangeSession),this.editor.commands.removeListener("afterExec",this.$onAfterExec),this.editor.keyBinding.removeKeyboardHandler(this.keyboardHandler),this.editor.tabstopManager=null,this.editor=null},this.onChange=function(e){var t=e,n=e.action[0]=="r",r=e.start,i=e.end,s=r.row,o=i.row,u=o-s,a=i.column-r.column;n&&(u=-u,a=-a);if(!this.$inChange&&n){var f=this.selectedTabstop,c=f&&!f.some(function(e){return l(e.start,r)<=0&&l(e.end,i)>=0});if(c)return this.detach()}var h=this.ranges;for(var p=0;p<h.length;p++){var d=h[p];if(d.end.row<r.row)continue;if(n&&l(r,d.start)<0&&l(i,d.end)>0){this.removeRange(d),p--;continue}d.start.row==s&&d.start.column>r.column&&(d.start.column+=a),d.end.row==s&&d.end.column>=r.column&&(d.end.column+=a),d.start.row>=s&&(d.start.row+=u),d.end.row>=s&&(d.end.row+=u),l(d.start,d.end)>0&&this.removeRange(d)}h.length||this.detach()},this.updateLinkedFields=function(){var e=this.selectedTabstop;if(!e||!e.hasLinkedRanges)return;this.$inChange=!0;var n=this.editor.session,r=n.getTextRange(e.firstNonLinked);for(var i=e.length;i--;){var s=e[i];if(!s.linked)continue;var o=t.snippetManager.tmStrFormat(r,s.original);n.replace(s,o)}this.$inChange=!1},this.onAfterExec=function(e){e.command&&!e.command.readOnly&&this.updateLinkedFields()},this.onChangeSelection=function(){if(!this.editor)return;var e=this.editor.selection.lead,t=this.editor.selection.anchor,n=this.editor.selection.isEmpty();for(var r=this.ranges.length;r--;){if(this.ranges[r].linked)continue;var i=this.ranges[r].contains(e.row,e.column),s=n||this.ranges[r].contains(t.row,t.column);if(i&&s)return}this.detach()},this.onChangeSession=function(){this.detach()},this.tabNext=function(e){var t=this.tabstops.length,n=this.index+(e||1);n=Math.min(Math.max(n,1),t),n==t&&(n=0),this.selectTabstop(n),n===0&&this.detach()},this.selectTabstop=function(e){this.$openTabstops=null;var t=this.tabstops[this.index];t&&this.addTabstopMarkers(t),this.index=e,t=this.tabstops[this.index];if(!t||!t.length)return;this.selectedTabstop=t;if(!this.editor.inVirtualSelectionMode){var n=this.editor.multiSelect;n.toSingleRange(t.firstNonLinked.clone());for(var r=t.length;r--;){if(t.hasLinkedRanges&&t[r].linked)continue;n.addRange(t[r].clone(),!0)}n.ranges[0]&&n.addRange(n.ranges[0].clone())}else this.editor.selection.setRange(t.firstNonLinked);this.editor.keyBinding.addKeyboardHandler(this.keyboardHandler)},this.addTabstops=function(e,t,n){this.$openTabstops||(this.$openTabstops=[]);if(!e[0]){var r=o.fromPoints(n,n);v(r.start,t),v(r.end,t),e[0]=[r],e[0].index=0}var i=this.index,s=[i+1,0],u=this.ranges;e.forEach(function(e,n){var r=this.$openTabstops[n]||e;for(var i=e.length;i--;){var a=e[i],f=o.fromPoints(a.start,a.end||a.start);d(f.start,t),d(f.end,t),f.original=a,f.tabstop=r,u.push(f),r!=e?r.unshift(f):r[i]=f,a.fmtString?(f.linked=!0,r.hasLinkedRanges=!0):r.firstNonLinked||(r.firstNonLinked=f)}r.firstNonLinked||(r.hasLinkedRanges=!1),r===e&&(s.push(r),this.$openTabstops[n]=r),this.addTabstopMarkers(r)},this),s.length>2&&(this.tabstops.length&&s.push(s.splice(2,1)[0]),this.tabstops.splice.apply(this.tabstops,s))},this.addTabstopMarkers=function(e){var t=this.editor.session;e.forEach(function(e){e.markerId||(e.markerId=t.addMarker(e,"ace_snippet-marker","text"))})},this.removeTabstopMarkers=function(e){var t=this.editor.session;e.forEach(function(e){t.removeMarker(e.markerId),e.markerId=null})},this.removeRange=function(e){var t=e.tabstop.indexOf(e);e.tabstop.splice(t,1),t=this.ranges.indexOf(e),this.ranges.splice(t,1),this.editor.session.removeMarker(e.markerId),e.tabstop.length||(t=this.tabstops.indexOf(e.tabstop),t!=-1&&this.tabstops.splice(t,1),this.tabstops.length||this.detach())},this.keyboardHandler=new a,this.keyboardHandler.bindKeys({Tab:function(e){if(t.snippetManager&&t.snippetManager.expandWithTab(e))return;e.tabstopManager.tabNext(1)},"Shift-Tab":function(e){e.tabstopManager.tabNext(-1)},Esc:function(e){e.tabstopManager.detach()},Return:function(e){return!1}})}).call(h.prototype);var p={};p.onChange=u.prototype.onChange,p.setPosition=function(e,t){this.pos.row=e,this.pos.column=t},p.update=function(e,t,n){this.$insertRight=n,this.pos=e,this.onChange(t)};var d=function(e,t){e.row==0&&(e.column+=t.column),e.row+=t.row},v=function(e,t){e.row==t.row&&(e.column-=t.column),e.row-=t.row};e("./lib/dom").importCssString(".ace_snippet-marker {    -moz-box-sizing: border-box;    box-sizing: border-box;    background: rgba(194, 193, 208, 0.09);    border: 1px dotted rgba(211, 208, 235, 0.62);    position: absolute;}"),t.snippetManager=new c;var m=e("./editor").Editor;(function(){this.insertSnippet=function(e,n){return t.snippetManager.insertSnippet(this,e,n)},this.expandSnippet=function(e){return t.snippetManager.expandWithTab(this,e)}}).call(m.prototype)}),define("ace/autocomplete/popup",["require","exports","module","ace/virtual_renderer","ace/editor","ace/range","ace/lib/event","ace/lib/lang","ace/lib/dom"],function(e,t,n){"use strict";var r=e("../virtual_renderer").VirtualRenderer,i=e("../editor").Editor,s=e("../range").Range,o=e("../lib/event"),u=e("../lib/lang"),a=e("../lib/dom"),f=function(e){var t=new r(e);t.$maxLines=4;var n=new i(t);return n.setHighlightActiveLine(!1),n.setShowPrintMargin(!1),n.renderer.setShowGutter(!1),n.renderer.setHighlightGutterLine(!1),n.$mouseHandler.$focusWaitTimout=0,n.$highlightTagPending=!0,n},l=function(e){var t=a.createElement("div"),n=new f(t);e&&e.appendChild(t),t.style.display="none",n.renderer.content.style.cursor="default",n.renderer.setStyle("ace_autocomplete"),n.setOption("displayIndentGuides",!1),n.setOption("dragDelay",150);var r=function(){};n.focus=r,n.$isFocused=!0,n.renderer.$cursorLayer.restartTimer=r,n.renderer.$cursorLayer.element.style.opacity=0,n.renderer.$maxLines=8,n.renderer.$keepTextAreaAtCursor=!1,n.setHighlightActiveLine(!1),n.session.highlight(""),n.session.$searchHighlight.clazz="ace_highlight-marker",n.on("mousedown",function(e){var t=e.getDocumentPosition();n.selection.moveToPosition(t),c.start.row=c.end.row=t.row,e.stop()});var i,l=new s(-1,0,-1,Infinity),c=new s(-1,0,-1,Infinity);c.id=n.session.addMarker(c,"ace_active-line","fullLine"),n.setSelectOnHover=function(e){e?l.id&&(n.session.removeMarker(l.id),l.id=null):l.id=n.session.addMarker(l,"ace_line-hover","fullLine")},n.setSelectOnHover(!1),n.on("mousemove",function(e){if(!i){i=e;return}if(i.x==e.x&&i.y==e.y)return;i=e,i.scrollTop=n.renderer.scrollTop;var t=i.getDocumentPosition().row;l.start.row!=t&&(l.id||n.setRow(t),p(t))}),n.renderer.on("beforeRender",function(){if(i&&l.start.row!=-1){i.$pos=null;var e=i.getDocumentPosition().row;l.id||n.setRow(e),p(e,!0)}}),n.renderer.on("afterRender",function(){var e=n.getRow(),t=n.renderer.$textLayer,r=t.element.childNodes[e-t.config.firstRow];if(r==t.selectedNode)return;t.selectedNode&&a.removeCssClass(t.selectedNode,"ace_selected"),t.selectedNode=r,r&&a.addCssClass(r,"ace_selected")});var h=function(){p(-1)},p=function(e,t){e!==l.start.row&&(l.start.row=l.end.row=e,t||n.session._emit("changeBackMarker"),n._emit("changeHoverMarker"))};n.getHoveredRow=function(){return l.start.row},o.addListener(n.container,"mouseout",h),n.on("hide",h),n.on("changeSelection",h),n.session.doc.getLength=function(){return n.data.length},n.session.doc.getLine=function(e){var t=n.data[e];return typeof t=="string"?t:t&&t.value||""};var d=n.session.bgTokenizer;return d.$tokenizeRow=function(e){var t=n.data[e],r=[];if(!t)return r;typeof t=="string"&&(t={value:t}),t.caption||(t.caption=t.value||t.name);var i=-1,s,o;for(var u=0;u<t.caption.length;u++)o=t.caption[u],s=t.matchMask&1<<u?1:0,i!==s?(r.push({type:t.className||""+(s?"completion-highlight":""),value:o}),i=s):r[r.length-1].value+=o;if(t.meta){var a=n.renderer.$size.scrollerWidth/n.renderer.layerConfig.characterWidth,f=t.meta;f.length+t.caption.length>a-2&&(f=f.substr(0,a-t.caption.length-3)+"\u2026"),r.push({type:"rightAlignedText",value:f})}return r},d.$updateOnChange=r,d.start=r,n.session.$computeWidth=function(){return this.screenWidth=0},n.$blockScrolling=Infinity,n.isOpen=!1,n.isTopdown=!1,n.data=[],n.setData=function(e){n.setValue(u.stringRepeat("\n",e.length),-1),n.data=e||[],n.setRow(0)},n.getData=function(e){return n.data[e]},n.getRow=function(){return c.start.row},n.setRow=function(e){e=Math.max(0,Math.min(this.data.length,e)),c.start.row!=e&&(n.selection.clearSelection(),c.start.row=c.end.row=e||0,n.session._emit("changeBackMarker"),n.moveCursorTo(e||0,0),n.isOpen&&n._signal("select"))},n.on("changeSelection",function(){n.isOpen&&n.setRow(n.selection.lead.row),n.renderer.scrollCursorIntoView()}),n.hide=function(){this.container.style.display="none",this._signal("hide"),n.isOpen=!1},n.show=function(e,t,r){var s=this.container,o=window.innerHeight,u=window.innerWidth,a=this.renderer,f=a.$maxLines*t*1.4,l=e.top+this.$borderSize,c=l>o/2&&!r;c&&l+t+f>o?(a.$maxPixelHeight=l-2*this.$borderSize,s.style.top="",s.style.bottom=o-l+"px",n.isTopdown=!1):(l+=t,a.$maxPixelHeight=o-l-.2*t,s.style.top=l+"px",s.style.bottom="",n.isTopdown=!0),s.style.display="",this.renderer.$textLayer.checkForSizeChanges();var h=e.left;h+s.offsetWidth>u&&(h=u-s.offsetWidth),s.style.left=h+"px",this._signal("show"),i=null,n.isOpen=!0},n.getTextLeftOffset=function(){return this.$borderSize+this.renderer.$padding+this.$imageSize},n.$imageSize=0,n.$borderSize=1,n};a.importCssString(".ace_editor.ace_autocomplete .ace_marker-layer .ace_active-line {    background-color: #CAD6FA;    z-index: 1;}.ace_editor.ace_autocomplete .ace_line-hover {    border: 1px solid #abbffe;    margin-top: -1px;    background: rgba(233,233,253,0.4);}.ace_editor.ace_autocomplete .ace_line-hover {    position: absolute;    z-index: 2;}.ace_editor.ace_autocomplete .ace_scroller {   background: none;   border: none;   box-shadow: none;}.ace_rightAlignedText {    color: gray;    display: inline-block;    position: absolute;    right: 4px;    text-align: right;    z-index: -1;}.ace_editor.ace_autocomplete .ace_completion-highlight{    color: #000;    text-shadow: 0 0 0.01em;}.ace_editor.ace_autocomplete {    width: 280px;    z-index: 200000;    background: #fbfbfb;    color: #444;    border: 1px lightgray solid;    position: fixed;    box-shadow: 2px 3px 5px rgba(0,0,0,.2);    line-height: 1.4;}"),t.AcePopup=l}),define("ace/autocomplete/util",["require","exports","module"],function(e,t,n){"use strict";t.parForEach=function(e,t,n){var r=0,i=e.length;i===0&&n();for(var s=0;s<i;s++)t(e[s],function(e,t){r++,r===i&&n(e,t)})};var r=/[a-zA-Z_0-9\$\-\u00A2-\uFFFF]/;t.retrievePrecedingIdentifier=function(e,t,n){n=n||r;var i=[];for(var s=t-1;s>=0;s--){if(!n.test(e[s]))break;i.push(e[s])}return i.reverse().join("")},t.retrieveFollowingIdentifier=function(e,t,n){n=n||r;var i=[];for(var s=t;s<e.length;s++){if(!n.test(e[s]))break;i.push(e[s])}return i},t.getCompletionPrefix=function(e){var t=e.getCursorPosition(),n=e.session.getLine(t.row),r;return e.completers.forEach(function(e){e.identifierRegexps&&e.identifierRegexps.forEach(function(e){!r&&e&&(r=this.retrievePrecedingIdentifier(n,t.column,e))}.bind(this))}.bind(this)),r||this.retrievePrecedingIdentifier(n,t.column)}}),define("ace/autocomplete",["require","exports","module","ace/keyboard/hash_handler","ace/autocomplete/popup","ace/autocomplete/util","ace/lib/event","ace/lib/lang","ace/lib/dom","ace/snippets"],function(e,t,n){"use strict";var r=e("./keyboard/hash_handler").HashHandler,i=e("./autocomplete/popup").AcePopup,s=e("./autocomplete/util"),o=e("./lib/event"),u=e("./lib/lang"),a=e("./lib/dom"),f=e("./snippets").snippetManager,l=function(){this.autoInsert=!1,this.autoSelect=!0,this.exactMatch=!1,this.gatherCompletionsId=0,this.keyboardHandler=new r,this.keyboardHandler.bindKeys(this.commands),this.blurListener=this.blurListener.bind(this),this.changeListener=this.changeListener.bind(this),this.mousedownListener=this.mousedownListener.bind(this),this.mousewheelListener=this.mousewheelListener.bind(this),this.changeTimer=u.delayedCall(function(){this.updateCompletions(!0)}.bind(this)),this.tooltipTimer=u.delayedCall(this.updateDocTooltip.bind(this),50)};(function(){this.$init=function(){return this.popup=new i(document.body||document.documentElement),this.popup.on("click",function(e){this.insertMatch(),e.stop()}.bind(this)),this.popup.focus=this.editor.focus.bind(this.editor),this.popup.on("show",this.tooltipTimer.bind(null,null)),this.popup.on("select",this.tooltipTimer.bind(null,null)),this.popup.on("changeHoverMarker",this.tooltipTimer.bind(null,null)),this.popup},this.getPopup=function(){return this.popup||this.$init()},this.openPopup=function(e,t,n){this.popup||this.$init(),this.popup.setData(this.completions.filtered),e.keyBinding.addKeyboardHandler(this.keyboardHandler);var r=e.renderer;this.popup.setRow(this.autoSelect?0:-1);if(!n){this.popup.setTheme(e.getTheme()),this.popup.setFontSize(e.getFontSize());var i=r.layerConfig.lineHeight,s=r.$cursorLayer.getPixelPosition(this.base,!0);s.left-=this.popup.getTextLeftOffset();var o=e.container.getBoundingClientRect();s.top+=o.top-r.layerConfig.offset,s.left+=o.left-e.renderer.scrollLeft,s.left+=r.gutterWidth,this.popup.show(s,i)}else n&&!t&&this.detach()},this.detach=function(){this.editor.keyBinding.removeKeyboardHandler(this.keyboardHandler),this.editor.off("changeSelection",this.changeListener),this.editor.off("blur",this.blurListener),this.editor.off("mousedown",this.mousedownListener),this.editor.off("mousewheel",this.mousewheelListener),this.changeTimer.cancel(),this.hideDocTooltip(),this.gatherCompletionsId+=1,this.popup&&this.popup.isOpen&&this.popup.hide(),this.base&&this.base.detach(),this.activated=!1,this.completions=this.base=null},this.changeListener=function(e){var t=this.editor.selection.lead;(t.row!=this.base.row||t.column<this.base.column)&&this.detach(),this.activated?this.changeTimer.schedule():this.detach()},this.blurListener=function(e){var t=document.activeElement,n=this.editor.textInput.getElement(),r=e.relatedTarget&&e.relatedTarget==this.tooltipNode,i=this.popup&&this.popup.container;t!=n&&t.parentNode!=i&&!r&&t!=this.tooltipNode&&e.relatedTarget!=n&&this.detach()},this.mousedownListener=function(e){this.detach()},this.mousewheelListener=function(e){this.detach()},this.goTo=function(e){var t=this.popup.getRow(),n=this.popup.session.getLength()-1;switch(e){case"up":t=t<=0?n:t-1;break;case"down":t=t>=n?-1:t+1;break;case"start":t=0;break;case"end":t=n}this.popup.setRow(t)},this.insertMatch=function(e,t){e||(e=this.popup.getData(this.popup.getRow()));if(!e)return!1;if(e.completer&&e.completer.insertMatch)e.completer.insertMatch(this.editor,e);else{if(this.completions.filterText){var n=this.editor.selection.getAllRanges();for(var r=0,i;i=n[r];r++)i.start.column-=this.completions.filterText.length,this.editor.session.remove(i)}e.snippet?f.insertSnippet(this.editor,e.snippet):this.editor.execCommand("insertstring",e.value||e)}this.detach()},this.commands={Up:function(e){e.completer.goTo("up")},Down:function(e){e.completer.goTo("down")},"Ctrl-Up|Ctrl-Home":function(e){e.completer.goTo("start")},"Ctrl-Down|Ctrl-End":function(e){e.completer.goTo("end")},Esc:function(e){e.completer.detach()},Return:function(e){return e.completer.insertMatch()},"Shift-Return":function(e){e.completer.insertMatch(null,{deleteSuffix:!0})},Tab:function(e){var t=e.completer.insertMatch();if(!!t||!!e.tabstopManager)return t;e.completer.goTo("down")},PageUp:function(e){e.completer.popup.gotoPageUp()},PageDown:function(e){e.completer.popup.gotoPageDown()}},this.gatherCompletions=function(e,t){var n=e.getSession(),r=e.getCursorPosition(),i=n.getLine(r.row),o=s.getCompletionPrefix(e);this.base=n.doc.createAnchor(r.row,r.column-o.length),this.base.$insertRight=!0;var u=[],a=e.completers.length;return e.completers.forEach(function(i,s){i.getCompletions(e,n,r,o,function(r,i){!r&&i&&(u=u.concat(i));var s=e.getCursorPosition(),f=n.getLine(s.row);t(null,{prefix:o,matches:u,finished:--a===0})})}),!0},this.showPopup=function(e){this.editor&&this.detach(),this.activated=!0,this.editor=e,e.completer!=this&&(e.completer&&e.completer.detach(),e.completer=this),e.on("changeSelection",this.changeListener),e.on("blur",this.blurListener),e.on("mousedown",this.mousedownListener),e.on("mousewheel",this.mousewheelListener),this.updateCompletions()},this.updateCompletions=function(e){if(e&&this.base&&this.completions){var t=this.editor.getCursorPosition(),n=this.editor.session.getTextRange({start:this.base,end:t});if(n==this.completions.filterText)return;this.completions.setFilter(n);if(!this.completions.filtered.length)return this.detach();if(this.completions.filtered.length==1&&this.completions.filtered[0].value==n&&!this.completions.filtered[0].snippet)return this.detach();this.openPopup(this.editor,n,e);return}var r=this.gatherCompletionsId;this.gatherCompletions(this.editor,function(t,n){var i=function(){if(!n.finished)return;return this.detach()}.bind(this),s=n.prefix,o=n&&n.matches;if(!o||!o.length)return i();if(s.indexOf(n.prefix)!==0||r!=this.gatherCompletionsId)return;this.completions=new c(o),this.exactMatch&&(this.completions.exactMatch=!0),this.completions.setFilter(s);var u=this.completions.filtered;if(!u.length)return i();if(u.length==1&&u[0].value==s&&!u[0].snippet)return i();if(this.autoInsert&&u.length==1&&n.finished)return this.insertMatch(u[0]);this.openPopup(this.editor,s,e)}.bind(this))},this.cancelContextMenu=function(){this.editor.$mouseHandler.cancelContextMenu()},this.updateDocTooltip=function(){var e=this.popup,t=e.data,n=t&&(t[e.getHoveredRow()]||t[e.getRow()]),r=null;if(!n||!this.editor||!this.popup.isOpen)return this.hideDocTooltip();this.editor.completers.some(function(e){return e.getDocTooltip&&(r=e.getDocTooltip(n)),r}),r||(r=n),typeof r=="string"&&(r={docText:r});if(!r||!r.docHTML&&!r.docText)return this.hideDocTooltip();this.showDocTooltip(r)},this.showDocTooltip=function(e){this.tooltipNode||(this.tooltipNode=a.createElement("div"),this.tooltipNode.className="ace_tooltip ace_doc-tooltip",this.tooltipNode.style.margin=0,this.tooltipNode.style.pointerEvents="auto",this.tooltipNode.tabIndex=-1,this.tooltipNode.onblur=this.blurListener.bind(this));var t=this.tooltipNode;e.docHTML?t.innerHTML=e.docHTML:e.docText&&(t.textContent=e.docText),t.parentNode||document.body.appendChild(t);var n=this.popup,r=n.container.getBoundingClientRect();t.style.top=n.container.style.top,t.style.bottom=n.container.style.bottom,window.innerWidth-r.right<320?(t.style.right=window.innerWidth-r.left+"px",t.style.left=""):(t.style.left=r.right+1+"px",t.style.right=""),t.style.display="block"},this.hideDocTooltip=function(){this.tooltipTimer.cancel();if(!this.tooltipNode)return;var e=this.tooltipNode;!this.editor.isFocused()&&document.activeElement==e&&this.editor.focus(),this.tooltipNode=null,e.parentNode&&e.parentNode.removeChild(e)}}).call(l.prototype),l.startCommand={name:"startAutocomplete",exec:function(e){e.completer||(e.completer=new l),e.completer.autoInsert=!1,e.completer.autoSelect=!0,e.completer.showPopup(e),e.completer.cancelContextMenu()},bindKey:"Ctrl-Space|Ctrl-Shift-Space|Alt-Space"};var c=function(e,t){this.all=e,this.filtered=e,this.filterText=t||"",this.exactMatch=!1};(function(){this.setFilter=function(e){if(e.length>this.filterText&&e.lastIndexOf(this.filterText,0)===0)var t=this.filtered;else var t=this.all;this.filterText=e,t=this.filterCompletions(t,this.filterText),t=t.sort(function(e,t){return t.exactMatch-e.exactMatch||t.score-e.score});var n=null;t=t.filter(function(e){var t=e.snippet||e.caption||e.value;return t===n?!1:(n=t,!0)}),this.filtered=t},this.filterCompletions=function(e,t){var n=[],r=t.toUpperCase(),i=t.toLowerCase();e:for(var s=0,o;o=e[s];s++){var u=o.value||o.caption||o.snippet;if(!u)continue;var a=-1,f=0,l=0,c,h;if(this.exactMatch){if(t!==u.substr(0,t.length))continue e}else for(var p=0;p<t.length;p++){var d=u.indexOf(i[p],a+1),v=u.indexOf(r[p],a+1);c=d>=0?v<0||d<v?d:v:v;if(c<0)continue e;h=c-a-1,h>0&&(a===-1&&(l+=10),l+=h),f|=1<<c,a=c}o.matchMask=f,o.exactMatch=l?0:1,o.score=(o.score||0)-l,n.push(o)}return n}}).call(c.prototype),t.Autocomplete=l,t.FilteredList=c}),define("ace/autocomplete/text_completer",["require","exports","module","ace/range"],function(e,t,n){function s(e,t){var n=e.getTextRange(r.fromPoints({row:0,column:0},t));return n.split(i).length-1}function o(e,t){var n=s(e,t),r=e.getValue().split(i),o=Object.create(null),u=r[n];return r.forEach(function(e,t){if(!e||e===u)return;var i=Math.abs(n-t),s=r.length-i;o[e]?o[e]=Math.max(s,o[e]):o[e]=s}),o}var r=e("../range").Range,i=/[^a-zA-Z_0-9\$\-\u00C0-\u1FFF\u2C00-\uD7FF\w]+/;t.getCompletions=function(e,t,n,r,i){var s=o(t,n,r),u=Object.keys(s);i(null,u.map(function(e){return{caption:e,value:e,score:s[e],meta:"local"}}))}}),define("ace/ext/language_tools",["require","exports","module","ace/snippets","ace/autocomplete","ace/config","ace/lib/lang","ace/autocomplete/util","ace/autocomplete/text_completer","ace/editor","ace/config"],function(e,t,n){"use strict";var r=e("../snippets").snippetManager,i=e("../autocomplete").Autocomplete,s=e("../config"),o=e("../lib/lang"),u=e("../autocomplete/util"),a=e("../autocomplete/text_completer"),f={getCompletions:function(e,t,n,r,i){if(t.$mode.completer)return t.$mode.completer.getCompletions(e,t,n,r,i);var s=e.session.getState(n.row),o=t.$mode.getCompletions(s,t,n,r);i(null,o)}},l={getCompletions:function(e,t,n,i,s){var o=r.snippetMap,u=[];r.getActiveScopes(e).forEach(function(e){var t=o[e]||[];for(var n=t.length;n--;){var r=t[n],i=r.name||r.tabTrigger;if(!i)continue;u.push({caption:i,snippet:r.content,meta:r.tabTrigger&&!r.name?r.tabTrigger+"\u21e5 ":"snippet",type:"snippet"})}},this),s(null,u)},getDocTooltip:function(e){e.type=="snippet"&&!e.docHTML&&(e.docHTML=["<b>",o.escapeHTML(e.caption),"</b>","<hr></hr>",o.escapeHTML(e.snippet)].join(""))}},c=[l,a,f];t.setCompleters=function(e){c.length=0,e&&c.push.apply(c,e)},t.addCompleter=function(e){c.push(e)},t.textCompleter=a,t.keyWordCompleter=f,t.snippetCompleter=l;var h={name:"expandSnippet",exec:function(e){return r.expandWithTab(e)},bindKey:"Tab"},p=function(e,t){d(t.session.$mode)},d=function(e){var t=e.$id;r.files||(r.files={}),v(t),e.modes&&e.modes.forEach(d)},v=function(e){if(!e||r.files[e])return;var t=e.replace("mode","snippets");r.files[e]={},s.loadModule(t,function(t){t&&(r.files[e]=t,!t.snippets&&t.snippetText&&(t.snippets=r.parseSnippetFile(t.snippetText)),r.register(t.snippets||[],t.scope),t.includeScopes&&(r.snippetMap[t.scope].includeScopes=t.includeScopes,t.includeScopes.forEach(function(e){v("ace/mode/"+e)})))})},m=function(e){var t=e.editor,n=t.completer&&t.completer.activated;if(e.command.name==="backspace")n&&!u.getCompletionPrefix(t)&&t.completer.detach();else if(e.command.name==="insertstring"){var r=u.getCompletionPrefix(t);r&&!n&&(t.completer||(t.completer=new i),t.completer.autoInsert=!1,t.completer.showPopup(t))}},g=e("../editor").Editor;e("../config").defineOptions(g.prototype,"editor",{enableBasicAutocompletion:{set:function(e){e?(this.completers||(this.completers=Array.isArray(e)?e:c),this.commands.addCommand(i.startCommand)):this.commands.removeCommand(i.startCommand)},value:!1},enableLiveAutocompletion:{set:function(e){e?(this.completers||(this.completers=Array.isArray(e)?e:c),this.commands.on("afterExec",m)):this.commands.removeListener("afterExec",m)},value:!1},enableSnippets:{set:function(e){e?(this.commands.addCommand(h),this.on("changeMode",p),p(null,this)):(this.commands.removeCommand(h),this.off("changeMode",p))},value:!1}})});
+define("ace/snippets",["require","exports","module","ace/lib/oop","ace/lib/event_emitter","ace/lib/lang","ace/range","ace/anchor","ace/keyboard/hash_handler","ace/tokenizer","ace/lib/dom","ace/editor"], function(require, exports, module) {
+"use strict";
+var oop = require("./lib/oop");
+var EventEmitter = require("./lib/event_emitter").EventEmitter;
+var lang = require("./lib/lang");
+var Range = require("./range").Range;
+var Anchor = require("./anchor").Anchor;
+var HashHandler = require("./keyboard/hash_handler").HashHandler;
+var Tokenizer = require("./tokenizer").Tokenizer;
+var comparePoints = Range.comparePoints;
+
+var SnippetManager = function() {
+    this.snippetMap = {};
+    this.snippetNameMap = {};
+};
+
+(function() {
+    oop.implement(this, EventEmitter);
+    
+    this.getTokenizer = function() {
+        function TabstopToken(str, _, stack) {
+            str = str.substr(1);
+            if (/^\d+$/.test(str) && !stack.inFormatString)
+                return [{tabstopId: parseInt(str, 10)}];
+            return [{text: str}];
+        }
+        function escape(ch) {
+            return "(?:[^\\\\" + ch + "]|\\\\.)";
+        }
+        SnippetManager.$tokenizer = new Tokenizer({
+            start: [
+                {regex: /:/, onMatch: function(val, state, stack) {
+                    if (stack.length && stack[0].expectIf) {
+                        stack[0].expectIf = false;
+                        stack[0].elseBranch = stack[0];
+                        return [stack[0]];
+                    }
+                    return ":";
+                }},
+                {regex: /\\./, onMatch: function(val, state, stack) {
+                    var ch = val[1];
+                    if (ch == "}" && stack.length) {
+                        val = ch;
+                    }else if ("`$\\".indexOf(ch) != -1) {
+                        val = ch;
+                    } else if (stack.inFormatString) {
+                        if (ch == "n")
+                            val = "\n";
+                        else if (ch == "t")
+                            val = "\n";
+                        else if ("ulULE".indexOf(ch) != -1) {
+                            val = {changeCase: ch, local: ch > "a"};
+                        }
+                    }
+
+                    return [val];
+                }},
+                {regex: /}/, onMatch: function(val, state, stack) {
+                    return [stack.length ? stack.shift() : val];
+                }},
+                {regex: /\$(?:\d+|\w+)/, onMatch: TabstopToken},
+                {regex: /\$\{[\dA-Z_a-z]+/, onMatch: function(str, state, stack) {
+                    var t = TabstopToken(str.substr(1), state, stack);
+                    stack.unshift(t[0]);
+                    return t;
+                }, next: "snippetVar"},
+                {regex: /\n/, token: "newline", merge: false}
+            ],
+            snippetVar: [
+                {regex: "\\|" + escape("\\|") + "*\\|", onMatch: function(val, state, stack) {
+                    stack[0].choices = val.slice(1, -1).split(",");
+                }, next: "start"},
+                {regex: "/(" + escape("/") + "+)/(?:(" + escape("/") + "*)/)(\\w*):?",
+                 onMatch: function(val, state, stack) {
+                    var ts = stack[0];
+                    ts.fmtString = val;
+
+                    val = this.splitRegex.exec(val);
+                    ts.guard = val[1];
+                    ts.fmt = val[2];
+                    ts.flag = val[3];
+                    return "";
+                }, next: "start"},
+                {regex: "`" + escape("`") + "*`", onMatch: function(val, state, stack) {
+                    stack[0].code = val.splice(1, -1);
+                    return "";
+                }, next: "start"},
+                {regex: "\\?", onMatch: function(val, state, stack) {
+                    if (stack[0])
+                        stack[0].expectIf = true;
+                }, next: "start"},
+                {regex: "([^:}\\\\]|\\\\.)*:?", token: "", next: "start"}
+            ],
+            formatString: [
+                {regex: "/(" + escape("/") + "+)/", token: "regex"},
+                {regex: "", onMatch: function(val, state, stack) {
+                    stack.inFormatString = true;
+                }, next: "start"}
+            ]
+        });
+        SnippetManager.prototype.getTokenizer = function() {
+            return SnippetManager.$tokenizer;
+        };
+        return SnippetManager.$tokenizer;
+    };
+
+    this.tokenizeTmSnippet = function(str, startState) {
+        return this.getTokenizer().getLineTokens(str, startState).tokens.map(function(x) {
+            return x.value || x;
+        });
+    };
+
+    this.$getDefaultValue = function(editor, name) {
+        if (/^[A-Z]\d+$/.test(name)) {
+            var i = name.substr(1);
+            return (this.variables[name[0] + "__"] || {})[i];
+        }
+        if (/^\d+$/.test(name)) {
+            return (this.variables.__ || {})[name];
+        }
+        name = name.replace(/^TM_/, "");
+
+        if (!editor)
+            return;
+        var s = editor.session;
+        switch(name) {
+            case "CURRENT_WORD":
+                var r = s.getWordRange();
+            case "SELECTION":
+            case "SELECTED_TEXT":
+                return s.getTextRange(r);
+            case "CURRENT_LINE":
+                return s.getLine(editor.getCursorPosition().row);
+            case "PREV_LINE": // not possible in textmate
+                return s.getLine(editor.getCursorPosition().row - 1);
+            case "LINE_INDEX":
+                return editor.getCursorPosition().column;
+            case "LINE_NUMBER":
+                return editor.getCursorPosition().row + 1;
+            case "SOFT_TABS":
+                return s.getUseSoftTabs() ? "YES" : "NO";
+            case "TAB_SIZE":
+                return s.getTabSize();
+            case "FILENAME":
+            case "FILEPATH":
+                return "";
+            case "FULLNAME":
+                return "Ace";
+        }
+    };
+    this.variables = {};
+    this.getVariableValue = function(editor, varName) {
+        if (this.variables.hasOwnProperty(varName))
+            return this.variables[varName](editor, varName) || "";
+        return this.$getDefaultValue(editor, varName) || "";
+    };
+    this.tmStrFormat = function(str, ch, editor) {
+        var flag = ch.flag || "";
+        var re = ch.guard;
+        re = new RegExp(re, flag.replace(/[^gi]/, ""));
+        var fmtTokens = this.tokenizeTmSnippet(ch.fmt, "formatString");
+        var _self = this;
+        var formatted = str.replace(re, function() {
+            _self.variables.__ = arguments;
+            var fmtParts = _self.resolveVariables(fmtTokens, editor);
+            var gChangeCase = "E";
+            for (var i  = 0; i < fmtParts.length; i++) {
+                var ch = fmtParts[i];
+                if (typeof ch == "object") {
+                    fmtParts[i] = "";
+                    if (ch.changeCase && ch.local) {
+                        var next = fmtParts[i + 1];
+                        if (next && typeof next == "string") {
+                            if (ch.changeCase == "u")
+                                fmtParts[i] = next[0].toUpperCase();
+                            else
+                                fmtParts[i] = next[0].toLowerCase();
+                            fmtParts[i + 1] = next.substr(1);
+                        }
+                    } else if (ch.changeCase) {
+                        gChangeCase = ch.changeCase;
+                    }
+                } else if (gChangeCase == "U") {
+                    fmtParts[i] = ch.toUpperCase();
+                } else if (gChangeCase == "L") {
+                    fmtParts[i] = ch.toLowerCase();
+                }
+            }
+            return fmtParts.join("");
+        });
+        this.variables.__ = null;
+        return formatted;
+    };
+
+    this.resolveVariables = function(snippet, editor) {
+        var result = [];
+        for (var i = 0; i < snippet.length; i++) {
+            var ch = snippet[i];
+            if (typeof ch == "string") {
+                result.push(ch);
+            } else if (typeof ch != "object") {
+                continue;
+            } else if (ch.skip) {
+                gotoNext(ch);
+            } else if (ch.processed < i) {
+                continue;
+            } else if (ch.text) {
+                var value = this.getVariableValue(editor, ch.text);
+                if (value && ch.fmtString)
+                    value = this.tmStrFormat(value, ch);
+                ch.processed = i;
+                if (ch.expectIf == null) {
+                    if (value) {
+                        result.push(value);
+                        gotoNext(ch);
+                    }
+                } else {
+                    if (value) {
+                        ch.skip = ch.elseBranch;
+                    } else
+                        gotoNext(ch);
+                }
+            } else if (ch.tabstopId != null) {
+                result.push(ch);
+            } else if (ch.changeCase != null) {
+                result.push(ch);
+            }
+        }
+        function gotoNext(ch) {
+            var i1 = snippet.indexOf(ch, i + 1);
+            if (i1 != -1)
+                i = i1;
+        }
+        return result;
+    };
+
+    this.insertSnippetForSelection = function(editor, snippetText) {
+        var cursor = editor.getCursorPosition();
+        var line = editor.session.getLine(cursor.row);
+        var tabString = editor.session.getTabString();
+        var indentString = line.match(/^\s*/)[0];
+        
+        if (cursor.column < indentString.length)
+            indentString = indentString.slice(0, cursor.column);
+
+        var tokens = this.tokenizeTmSnippet(snippetText);
+        tokens = this.resolveVariables(tokens, editor);
+        tokens = tokens.map(function(x) {
+            if (x == "\n")
+                return x + indentString;
+            if (typeof x == "string")
+                return x.replace(/\t/g, tabString);
+            return x;
+        });
+        var tabstops = [];
+        tokens.forEach(function(p, i) {
+            if (typeof p != "object")
+                return;
+            var id = p.tabstopId;
+            var ts = tabstops[id];
+            if (!ts) {
+                ts = tabstops[id] = [];
+                ts.index = id;
+                ts.value = "";
+            }
+            if (ts.indexOf(p) !== -1)
+                return;
+            ts.push(p);
+            var i1 = tokens.indexOf(p, i + 1);
+            if (i1 === -1)
+                return;
+
+            var value = tokens.slice(i + 1, i1);
+            var isNested = value.some(function(t) {return typeof t === "object"});          
+            if (isNested && !ts.value) {
+                ts.value = value;
+            } else if (value.length && (!ts.value || typeof ts.value !== "string")) {
+                ts.value = value.join("");
+            }
+        });
+        tabstops.forEach(function(ts) {ts.length = 0});
+        var expanding = {};
+        function copyValue(val) {
+            var copy = [];
+            for (var i = 0; i < val.length; i++) {
+                var p = val[i];
+                if (typeof p == "object") {
+                    if (expanding[p.tabstopId])
+                        continue;
+                    var j = val.lastIndexOf(p, i - 1);
+                    p = copy[j] || {tabstopId: p.tabstopId};
+                }
+                copy[i] = p;
+            }
+            return copy;
+        }
+        for (var i = 0; i < tokens.length; i++) {
+            var p = tokens[i];
+            if (typeof p != "object")
+                continue;
+            var id = p.tabstopId;
+            var i1 = tokens.indexOf(p, i + 1);
+            if (expanding[id]) {
+                if (expanding[id] === p)
+                    expanding[id] = null;
+                continue;
+            }
+            
+            var ts = tabstops[id];
+            var arg = typeof ts.value == "string" ? [ts.value] : copyValue(ts.value);
+            arg.unshift(i + 1, Math.max(0, i1 - i));
+            arg.push(p);
+            expanding[id] = p;
+            tokens.splice.apply(tokens, arg);
+
+            if (ts.indexOf(p) === -1)
+                ts.push(p);
+        }
+        var row = 0, column = 0;
+        var text = "";
+        tokens.forEach(function(t) {
+            if (typeof t === "string") {
+                if (t[0] === "\n"){
+                    column = t.length - 1;
+                    row ++;
+                } else
+                    column += t.length;
+                text += t;
+            } else {
+                if (!t.start)
+                    t.start = {row: row, column: column};
+                else
+                    t.end = {row: row, column: column};
+            }
+        });
+        var range = editor.getSelectionRange();
+        var end = editor.session.replace(range, text);
+
+        var tabstopManager = new TabstopManager(editor);
+        var selectionId = editor.inVirtualSelectionMode && editor.selection.index;
+        tabstopManager.addTabstops(tabstops, range.start, end, selectionId);
+    };
+    
+    this.insertSnippet = function(editor, snippetText) {
+        var self = this;
+        if (editor.inVirtualSelectionMode)
+            return self.insertSnippetForSelection(editor, snippetText);
+        
+        editor.forEachSelection(function() {
+            self.insertSnippetForSelection(editor, snippetText);
+        }, null, {keepOrder: true});
+        
+        if (editor.tabstopManager)
+            editor.tabstopManager.tabNext();
+    };
+
+    this.$getScope = function(editor) {
+        var scope = editor.session.$mode.$id || "";
+        scope = scope.split("/").pop();
+        if (scope === "html" || scope === "php") {
+            if (scope === "php" && !editor.session.$mode.inlinePhp) 
+                scope = "html";
+            var c = editor.getCursorPosition();
+            var state = editor.session.getState(c.row);
+            if (typeof state === "object") {
+                state = state[0];
+            }
+            if (state.substring) {
+                if (state.substring(0, 3) == "js-")
+                    scope = "javascript";
+                else if (state.substring(0, 4) == "css-")
+                    scope = "css";
+                else if (state.substring(0, 4) == "php-")
+                    scope = "php";
+            }
+        }
+        
+        return scope;
+    };
+
+    this.getActiveScopes = function(editor) {
+        var scope = this.$getScope(editor);
+        var scopes = [scope];
+        var snippetMap = this.snippetMap;
+        if (snippetMap[scope] && snippetMap[scope].includeScopes) {
+            scopes.push.apply(scopes, snippetMap[scope].includeScopes);
+        }
+        scopes.push("_");
+        return scopes;
+    };
+
+    this.expandWithTab = function(editor, options) {
+        var self = this;
+        var result = editor.forEachSelection(function() {
+            return self.expandSnippetForSelection(editor, options);
+        }, null, {keepOrder: true});
+        if (result && editor.tabstopManager)
+            editor.tabstopManager.tabNext();
+        return result;
+    };
+    
+    this.expandSnippetForSelection = function(editor, options) {
+        var cursor = editor.getCursorPosition();
+        var line = editor.session.getLine(cursor.row);
+        var before = line.substring(0, cursor.column);
+        var after = line.substr(cursor.column);
+
+        var snippetMap = this.snippetMap;
+        var snippet;
+        this.getActiveScopes(editor).some(function(scope) {
+            var snippets = snippetMap[scope];
+            if (snippets)
+                snippet = this.findMatchingSnippet(snippets, before, after);
+            return !!snippet;
+        }, this);
+        if (!snippet)
+            return false;
+        if (options && options.dryRun)
+            return true;
+        editor.session.doc.removeInLine(cursor.row,
+            cursor.column - snippet.replaceBefore.length,
+            cursor.column + snippet.replaceAfter.length
+        );
+
+        this.variables.M__ = snippet.matchBefore;
+        this.variables.T__ = snippet.matchAfter;
+        this.insertSnippetForSelection(editor, snippet.content);
+
+        this.variables.M__ = this.variables.T__ = null;
+        return true;
+    };
+
+    this.findMatchingSnippet = function(snippetList, before, after) {
+        for (var i = snippetList.length; i--;) {
+            var s = snippetList[i];
+            if (s.startRe && !s.startRe.test(before))
+                continue;
+            if (s.endRe && !s.endRe.test(after))
+                continue;
+            if (!s.startRe && !s.endRe)
+                continue;
+
+            s.matchBefore = s.startRe ? s.startRe.exec(before) : [""];
+            s.matchAfter = s.endRe ? s.endRe.exec(after) : [""];
+            s.replaceBefore = s.triggerRe ? s.triggerRe.exec(before)[0] : "";
+            s.replaceAfter = s.endTriggerRe ? s.endTriggerRe.exec(after)[0] : "";
+            return s;
+        }
+    };
+
+    this.snippetMap = {};
+    this.snippetNameMap = {};
+    this.register = function(snippets, scope) {
+        var snippetMap = this.snippetMap;
+        var snippetNameMap = this.snippetNameMap;
+        var self = this;
+        
+        if (!snippets) 
+            snippets = [];
+        
+        function wrapRegexp(src) {
+            if (src && !/^\^?\(.*\)\$?$|^\\b$/.test(src))
+                src = "(?:" + src + ")";
+
+            return src || "";
+        }
+        function guardedRegexp(re, guard, opening) {
+            re = wrapRegexp(re);
+            guard = wrapRegexp(guard);
+            if (opening) {
+                re = guard + re;
+                if (re && re[re.length - 1] != "$")
+                    re = re + "$";
+            } else {
+                re = re + guard;
+                if (re && re[0] != "^")
+                    re = "^" + re;
+            }
+            return new RegExp(re);
+        }
+
+        function addSnippet(s) {
+            if (!s.scope)
+                s.scope = scope || "_";
+            scope = s.scope;
+            if (!snippetMap[scope]) {
+                snippetMap[scope] = [];
+                snippetNameMap[scope] = {};
+            }
+
+            var map = snippetNameMap[scope];
+            if (s.name) {
+                var old = map[s.name];
+                if (old)
+                    self.unregister(old);
+                map[s.name] = s;
+            }
+            snippetMap[scope].push(s);
+
+            if (s.tabTrigger && !s.trigger) {
+                if (!s.guard && /^\w/.test(s.tabTrigger))
+                    s.guard = "\\b";
+                s.trigger = lang.escapeRegExp(s.tabTrigger);
+            }
+            
+            if (!s.trigger && !s.guard && !s.endTrigger && !s.endGuard)
+                return;
+            
+            s.startRe = guardedRegexp(s.trigger, s.guard, true);
+            s.triggerRe = new RegExp(s.trigger, "", true);
+
+            s.endRe = guardedRegexp(s.endTrigger, s.endGuard, true);
+            s.endTriggerRe = new RegExp(s.endTrigger, "", true);
+        }
+
+        if (snippets && snippets.content)
+            addSnippet(snippets);
+        else if (Array.isArray(snippets))
+            snippets.forEach(addSnippet);
+        
+        this._signal("registerSnippets", {scope: scope});
+    };
+    this.unregister = function(snippets, scope) {
+        var snippetMap = this.snippetMap;
+        var snippetNameMap = this.snippetNameMap;
+
+        function removeSnippet(s) {
+            var nameMap = snippetNameMap[s.scope||scope];
+            if (nameMap && nameMap[s.name]) {
+                delete nameMap[s.name];
+                var map = snippetMap[s.scope||scope];
+                var i = map && map.indexOf(s);
+                if (i >= 0)
+                    map.splice(i, 1);
+            }
+        }
+        if (snippets.content)
+            removeSnippet(snippets);
+        else if (Array.isArray(snippets))
+            snippets.forEach(removeSnippet);
+    };
+    this.parseSnippetFile = function(str) {
+        str = str.replace(/\r/g, "");
+        var list = [], snippet = {};
+        var re = /^#.*|^({[\s\S]*})\s*$|^(\S+) (.*)$|^((?:\n*\t.*)+)/gm;
+        var m;
+        while (m = re.exec(str)) {
+            if (m[1]) {
+                try {
+                    snippet = JSON.parse(m[1]);
+                    list.push(snippet);
+                } catch (e) {}
+            } if (m[4]) {
+                snippet.content = m[4].replace(/^\t/gm, "");
+                list.push(snippet);
+                snippet = {};
+            } else {
+                var key = m[2], val = m[3];
+                if (key == "regex") {
+                    var guardRe = /\/((?:[^\/\\]|\\.)*)|$/g;
+                    snippet.guard = guardRe.exec(val)[1];
+                    snippet.trigger = guardRe.exec(val)[1];
+                    snippet.endTrigger = guardRe.exec(val)[1];
+                    snippet.endGuard = guardRe.exec(val)[1];
+                } else if (key == "snippet") {
+                    snippet.tabTrigger = val.match(/^\S*/)[0];
+                    if (!snippet.name)
+                        snippet.name = val;
+                } else {
+                    snippet[key] = val;
+                }
+            }
+        }
+        return list;
+    };
+    this.getSnippetByName = function(name, editor) {
+        var snippetMap = this.snippetNameMap;
+        var snippet;
+        this.getActiveScopes(editor).some(function(scope) {
+            var snippets = snippetMap[scope];
+            if (snippets)
+                snippet = snippets[name];
+            return !!snippet;
+        }, this);
+        return snippet;
+    };
+
+}).call(SnippetManager.prototype);
+
+
+var TabstopManager = function(editor) {
+    if (editor.tabstopManager)
+        return editor.tabstopManager;
+    editor.tabstopManager = this;
+    this.$onChange = this.onChange.bind(this);
+    this.$onChangeSelection = lang.delayedCall(this.onChangeSelection.bind(this)).schedule;
+    this.$onChangeSession = this.onChangeSession.bind(this);
+    this.$onAfterExec = this.onAfterExec.bind(this);
+    this.attach(editor);
+};
+(function() {
+    this.attach = function(editor) {
+        this.index = 0;
+        this.ranges = [];
+        this.tabstops = [];
+        this.$openTabstops = null;
+        this.selectedTabstop = null;
+
+        this.editor = editor;
+        this.editor.on("change", this.$onChange);
+        this.editor.on("changeSelection", this.$onChangeSelection);
+        this.editor.on("changeSession", this.$onChangeSession);
+        this.editor.commands.on("afterExec", this.$onAfterExec);
+        this.editor.keyBinding.addKeyboardHandler(this.keyboardHandler);
+    };
+    this.detach = function() {
+        this.tabstops.forEach(this.removeTabstopMarkers, this);
+        this.ranges = null;
+        this.tabstops = null;
+        this.selectedTabstop = null;
+        this.editor.removeListener("change", this.$onChange);
+        this.editor.removeListener("changeSelection", this.$onChangeSelection);
+        this.editor.removeListener("changeSession", this.$onChangeSession);
+        this.editor.commands.removeListener("afterExec", this.$onAfterExec);
+        this.editor.keyBinding.removeKeyboardHandler(this.keyboardHandler);
+        this.editor.tabstopManager = null;
+        this.editor = null;
+    };
+
+    this.onChange = function(delta) {
+        var changeRange = delta;
+        var isRemove = delta.action[0] == "r";
+        var start = delta.start;
+        var end = delta.end;
+        var startRow = start.row;
+        var endRow = end.row;
+        var lineDif = endRow - startRow;
+        var colDiff = end.column - start.column;
+
+        if (isRemove) {
+            lineDif = -lineDif;
+            colDiff = -colDiff;
+        }
+        if (!this.$inChange && isRemove) {
+            var ts = this.selectedTabstop;
+            var changedOutside = ts && !ts.some(function(r) {
+                return comparePoints(r.start, start) <= 0 && comparePoints(r.end, end) >= 0;
+            });
+            if (changedOutside)
+                return this.detach();
+        }
+        var ranges = this.ranges;
+        for (var i = 0; i < ranges.length; i++) {
+            var r = ranges[i];
+            if (r.end.row < start.row)
+                continue;
+
+            if (isRemove && comparePoints(start, r.start) < 0 && comparePoints(end, r.end) > 0) {
+                this.removeRange(r);
+                i--;
+                continue;
+            }
+
+            if (r.start.row == startRow && r.start.column > start.column)
+                r.start.column += colDiff;
+            if (r.end.row == startRow && r.end.column >= start.column)
+                r.end.column += colDiff;
+            if (r.start.row >= startRow)
+                r.start.row += lineDif;
+            if (r.end.row >= startRow)
+                r.end.row += lineDif;
+
+            if (comparePoints(r.start, r.end) > 0)
+                this.removeRange(r);
+        }
+        if (!ranges.length)
+            this.detach();
+    };
+    this.updateLinkedFields = function() {
+        var ts = this.selectedTabstop;
+        if (!ts || !ts.hasLinkedRanges)
+            return;
+        this.$inChange = true;
+        var session = this.editor.session;
+        var text = session.getTextRange(ts.firstNonLinked);
+        for (var i = ts.length; i--;) {
+            var range = ts[i];
+            if (!range.linked)
+                continue;
+            var fmt = exports.snippetManager.tmStrFormat(text, range.original);
+            session.replace(range, fmt);
+        }
+        this.$inChange = false;
+    };
+    this.onAfterExec = function(e) {
+        if (e.command && !e.command.readOnly)
+            this.updateLinkedFields();
+    };
+    this.onChangeSelection = function() {
+        if (!this.editor)
+            return;
+        var lead = this.editor.selection.lead;
+        var anchor = this.editor.selection.anchor;
+        var isEmpty = this.editor.selection.isEmpty();
+        for (var i = this.ranges.length; i--;) {
+            if (this.ranges[i].linked)
+                continue;
+            var containsLead = this.ranges[i].contains(lead.row, lead.column);
+            var containsAnchor = isEmpty || this.ranges[i].contains(anchor.row, anchor.column);
+            if (containsLead && containsAnchor)
+                return;
+        }
+        this.detach();
+    };
+    this.onChangeSession = function() {
+        this.detach();
+    };
+    this.tabNext = function(dir) {
+        var max = this.tabstops.length;
+        var index = this.index + (dir || 1);
+        index = Math.min(Math.max(index, 1), max);
+        if (index == max)
+            index = 0;
+        this.selectTabstop(index);
+        if (index === 0)
+            this.detach();
+    };
+    this.selectTabstop = function(index) {
+        this.$openTabstops = null;
+        var ts = this.tabstops[this.index];
+        if (ts)
+            this.addTabstopMarkers(ts);
+        this.index = index;
+        ts = this.tabstops[this.index];
+        if (!ts || !ts.length)
+            return;
+        
+        this.selectedTabstop = ts;
+        if (!this.editor.inVirtualSelectionMode) {        
+            var sel = this.editor.multiSelect;
+            sel.toSingleRange(ts.firstNonLinked.clone());
+            for (var i = ts.length; i--;) {
+                if (ts.hasLinkedRanges && ts[i].linked)
+                    continue;
+                sel.addRange(ts[i].clone(), true);
+            }
+            if (sel.ranges[0])
+                sel.addRange(sel.ranges[0].clone());
+        } else {
+            this.editor.selection.setRange(ts.firstNonLinked);
+        }
+        
+        this.editor.keyBinding.addKeyboardHandler(this.keyboardHandler);
+    };
+    this.addTabstops = function(tabstops, start, end) {
+        if (!this.$openTabstops)
+            this.$openTabstops = [];
+        if (!tabstops[0]) {
+            var p = Range.fromPoints(end, end);
+            moveRelative(p.start, start);
+            moveRelative(p.end, start);
+            tabstops[0] = [p];
+            tabstops[0].index = 0;
+        }
+
+        var i = this.index;
+        var arg = [i + 1, 0];
+        var ranges = this.ranges;
+        tabstops.forEach(function(ts, index) {
+            var dest = this.$openTabstops[index] || ts;
+                
+            for (var i = ts.length; i--;) {
+                var p = ts[i];
+                var range = Range.fromPoints(p.start, p.end || p.start);
+                movePoint(range.start, start);
+                movePoint(range.end, start);
+                range.original = p;
+                range.tabstop = dest;
+                ranges.push(range);
+                if (dest != ts)
+                    dest.unshift(range);
+                else
+                    dest[i] = range;
+                if (p.fmtString) {
+                    range.linked = true;
+                    dest.hasLinkedRanges = true;
+                } else if (!dest.firstNonLinked)
+                    dest.firstNonLinked = range;
+            }
+            if (!dest.firstNonLinked)
+                dest.hasLinkedRanges = false;
+            if (dest === ts) {
+                arg.push(dest);
+                this.$openTabstops[index] = dest;
+            }
+            this.addTabstopMarkers(dest);
+        }, this);
+        
+        if (arg.length > 2) {
+            if (this.tabstops.length)
+                arg.push(arg.splice(2, 1)[0]);
+            this.tabstops.splice.apply(this.tabstops, arg);
+        }
+    };
+
+    this.addTabstopMarkers = function(ts) {
+        var session = this.editor.session;
+        ts.forEach(function(range) {
+            if  (!range.markerId)
+                range.markerId = session.addMarker(range, "ace_snippet-marker", "text");
+        });
+    };
+    this.removeTabstopMarkers = function(ts) {
+        var session = this.editor.session;
+        ts.forEach(function(range) {
+            session.removeMarker(range.markerId);
+            range.markerId = null;
+        });
+    };
+    this.removeRange = function(range) {
+        var i = range.tabstop.indexOf(range);
+        range.tabstop.splice(i, 1);
+        i = this.ranges.indexOf(range);
+        this.ranges.splice(i, 1);
+        this.editor.session.removeMarker(range.markerId);
+        if (!range.tabstop.length) {
+            i = this.tabstops.indexOf(range.tabstop);
+            if (i != -1)
+                this.tabstops.splice(i, 1);
+            if (!this.tabstops.length)
+                this.detach();
+        }
+    };
+
+    this.keyboardHandler = new HashHandler();
+    this.keyboardHandler.bindKeys({
+        "Tab": function(ed) {
+            if (exports.snippetManager && exports.snippetManager.expandWithTab(ed)) {
+                return;
+            }
+
+            ed.tabstopManager.tabNext(1);
+        },
+        "Shift-Tab": function(ed) {
+            ed.tabstopManager.tabNext(-1);
+        },
+        "Esc": function(ed) {
+            ed.tabstopManager.detach();
+        },
+        "Return": function(ed) {
+            return false;
+        }
+    });
+}).call(TabstopManager.prototype);
+
+
+
+var changeTracker = {};
+changeTracker.onChange = Anchor.prototype.onChange;
+changeTracker.setPosition = function(row, column) {
+    this.pos.row = row;
+    this.pos.column = column;
+};
+changeTracker.update = function(pos, delta, $insertRight) {
+    this.$insertRight = $insertRight;
+    this.pos = pos; 
+    this.onChange(delta);
+};
+
+var movePoint = function(point, diff) {
+    if (point.row == 0)
+        point.column += diff.column;
+    point.row += diff.row;
+};
+
+var moveRelative = function(point, start) {
+    if (point.row == start.row)
+        point.column -= start.column;
+    point.row -= start.row;
+};
+
+
+require("./lib/dom").importCssString("\
+.ace_snippet-marker {\
+    -moz-box-sizing: border-box;\
+    box-sizing: border-box;\
+    background: rgba(194, 193, 208, 0.09);\
+    border: 1px dotted rgba(211, 208, 235, 0.62);\
+    position: absolute;\
+}");
+
+exports.snippetManager = new SnippetManager();
+
+
+var Editor = require("./editor").Editor;
+(function() {
+    this.insertSnippet = function(content, options) {
+        return exports.snippetManager.insertSnippet(this, content, options);
+    };
+    this.expandSnippet = function(options) {
+        return exports.snippetManager.expandWithTab(this, options);
+    };
+}).call(Editor.prototype);
+
+});
+
+define("ace/autocomplete/popup",["require","exports","module","ace/virtual_renderer","ace/editor","ace/range","ace/lib/event","ace/lib/lang","ace/lib/dom"], function(require, exports, module) {
+"use strict";
+
+var Renderer = require("../virtual_renderer").VirtualRenderer;
+var Editor = require("../editor").Editor;
+var Range = require("../range").Range;
+var event = require("../lib/event");
+var lang = require("../lib/lang");
+var dom = require("../lib/dom");
+
+var $singleLineEditor = function(el) {
+    var renderer = new Renderer(el);
+
+    renderer.$maxLines = 4;
+
+    var editor = new Editor(renderer);
+
+    editor.setHighlightActiveLine(false);
+    editor.setShowPrintMargin(false);
+    editor.renderer.setShowGutter(false);
+    editor.renderer.setHighlightGutterLine(false);
+
+    editor.$mouseHandler.$focusWaitTimout = 0;
+    editor.$highlightTagPending = true;
+
+    return editor;
+};
+
+var AcePopup = function(parentNode) {
+    var el = dom.createElement("div");
+    var popup = new $singleLineEditor(el);
+
+    if (parentNode)
+        parentNode.appendChild(el);
+    el.style.display = "none";
+    popup.renderer.content.style.cursor = "default";
+    popup.renderer.setStyle("ace_autocomplete");
+
+    popup.setOption("displayIndentGuides", false);
+    popup.setOption("dragDelay", 150);
+
+    var noop = function(){};
+
+    popup.focus = noop;
+    popup.$isFocused = true;
+
+    popup.renderer.$cursorLayer.restartTimer = noop;
+    popup.renderer.$cursorLayer.element.style.opacity = 0;
+
+    popup.renderer.$maxLines = 8;
+    popup.renderer.$keepTextAreaAtCursor = false;
+
+    popup.setHighlightActiveLine(false);
+    popup.session.highlight("");
+    popup.session.$searchHighlight.clazz = "ace_highlight-marker";
+
+    popup.on("mousedown", function(e) {
+        var pos = e.getDocumentPosition();
+        popup.selection.moveToPosition(pos);
+        selectionMarker.start.row = selectionMarker.end.row = pos.row;
+        e.stop();
+    });
+
+    var lastMouseEvent;
+    var hoverMarker = new Range(-1,0,-1,Infinity);
+    var selectionMarker = new Range(-1,0,-1,Infinity);
+    selectionMarker.id = popup.session.addMarker(selectionMarker, "ace_active-line", "fullLine");
+    popup.setSelectOnHover = function(val) {
+        if (!val) {
+            hoverMarker.id = popup.session.addMarker(hoverMarker, "ace_line-hover", "fullLine");
+        } else if (hoverMarker.id) {
+            popup.session.removeMarker(hoverMarker.id);
+            hoverMarker.id = null;
+        }
+    };
+    popup.setSelectOnHover(false);
+    popup.on("mousemove", function(e) {
+        if (!lastMouseEvent) {
+            lastMouseEvent = e;
+            return;
+        }
+        if (lastMouseEvent.x == e.x && lastMouseEvent.y == e.y) {
+            return;
+        }
+        lastMouseEvent = e;
+        lastMouseEvent.scrollTop = popup.renderer.scrollTop;
+        var row = lastMouseEvent.getDocumentPosition().row;
+        if (hoverMarker.start.row != row) {
+            if (!hoverMarker.id)
+                popup.setRow(row);
+            setHoverMarker(row);
+        }
+    });
+    popup.renderer.on("beforeRender", function() {
+        if (lastMouseEvent && hoverMarker.start.row != -1) {
+            lastMouseEvent.$pos = null;
+            var row = lastMouseEvent.getDocumentPosition().row;
+            if (!hoverMarker.id)
+                popup.setRow(row);
+            setHoverMarker(row, true);
+        }
+    });
+    popup.renderer.on("afterRender", function() {
+        var row = popup.getRow();
+        var t = popup.renderer.$textLayer;
+        var selected = t.element.childNodes[row - t.config.firstRow];
+        if (selected == t.selectedNode)
+            return;
+        if (t.selectedNode)
+            dom.removeCssClass(t.selectedNode, "ace_selected");
+        t.selectedNode = selected;
+        if (selected)
+            dom.addCssClass(selected, "ace_selected");
+    });
+    var hideHoverMarker = function() { setHoverMarker(-1) };
+    var setHoverMarker = function(row, suppressRedraw) {
+        if (row !== hoverMarker.start.row) {
+            hoverMarker.start.row = hoverMarker.end.row = row;
+            if (!suppressRedraw)
+                popup.session._emit("changeBackMarker");
+            popup._emit("changeHoverMarker");
+        }
+    };
+    popup.getHoveredRow = function() {
+        return hoverMarker.start.row;
+    };
+
+    event.addListener(popup.container, "mouseout", hideHoverMarker);
+    popup.on("hide", hideHoverMarker);
+    popup.on("changeSelection", hideHoverMarker);
+
+    popup.session.doc.getLength = function() {
+        return popup.data.length;
+    };
+    popup.session.doc.getLine = function(i) {
+        var data = popup.data[i];
+        if (typeof data == "string")
+            return data;
+        return (data && data.value) || "";
+    };
+
+    var bgTokenizer = popup.session.bgTokenizer;
+    bgTokenizer.$tokenizeRow = function(row) {
+        var data = popup.data[row];
+        var tokens = [];
+        if (!data)
+            return tokens;
+        if (typeof data == "string")
+            data = {value: data};
+        if (!data.caption)
+            data.caption = data.value || data.name;
+
+        var last = -1;
+        var flag, c;
+        for (var i = 0; i < data.caption.length; i++) {
+            c = data.caption[i];
+            flag = data.matchMask & (1 << i) ? 1 : 0;
+            if (last !== flag) {
+                tokens.push({type: data.className || "" + ( flag ? "completion-highlight" : ""), value: c});
+                last = flag;
+            } else {
+                tokens[tokens.length - 1].value += c;
+            }
+        }
+
+        if (data.meta) {
+            var maxW = popup.renderer.$size.scrollerWidth / popup.renderer.layerConfig.characterWidth;
+            var metaData = data.meta;
+            if (metaData.length + data.caption.length > maxW - 2) {
+                metaData = metaData.substr(0, maxW - data.caption.length - 3) + "\u2026"
+            }
+            tokens.push({type: "rightAlignedText", value: metaData});
+        }
+        return tokens;
+    };
+    bgTokenizer.$updateOnChange = noop;
+    bgTokenizer.start = noop;
+
+    popup.session.$computeWidth = function() {
+        return this.screenWidth = 0;
+    };
+
+    popup.$blockScrolling = Infinity;
+    popup.isOpen = false;
+    popup.isTopdown = false;
+
+    popup.data = [];
+    popup.setData = function(list) {
+        popup.setValue(lang.stringRepeat("\n", list.length), -1);
+        popup.data = list || [];
+        popup.setRow(0);
+    };
+    popup.getData = function(row) {
+        return popup.data[row];
+    };
+
+    popup.getRow = function() {
+        return selectionMarker.start.row;
+    };
+    popup.setRow = function(line) {
+        line = Math.max(0, Math.min(this.data.length, line));
+        if (selectionMarker.start.row != line) {
+            popup.selection.clearSelection();
+            selectionMarker.start.row = selectionMarker.end.row = line || 0;
+            popup.session._emit("changeBackMarker");
+            popup.moveCursorTo(line || 0, 0);
+            if (popup.isOpen)
+                popup._signal("select");
+        }
+    };
+
+    popup.on("changeSelection", function() {
+        if (popup.isOpen)
+            popup.setRow(popup.selection.lead.row);
+        popup.renderer.scrollCursorIntoView();
+    });
+
+    popup.hide = function() {
+        this.container.style.display = "none";
+        this._signal("hide");
+        popup.isOpen = false;
+    };
+    popup.show = function(pos, lineHeight, topdownOnly) {
+        var el = this.container;
+        var screenHeight = window.innerHeight;
+        var screenWidth = window.innerWidth;
+        var renderer = this.renderer;
+        var maxH = renderer.$maxLines * lineHeight * 1.4;
+        var top = pos.top + this.$borderSize;
+        var allowTopdown = top > screenHeight / 2 && !topdownOnly;
+        if (allowTopdown && top + lineHeight + maxH > screenHeight) {
+            renderer.$maxPixelHeight = top - 2 * this.$borderSize;
+            el.style.top = "";
+            el.style.bottom = screenHeight - top + "px";
+            popup.isTopdown = false;
+        } else {
+            top += lineHeight;
+            renderer.$maxPixelHeight = screenHeight - top - 0.2 * lineHeight;
+            el.style.top = top + "px";
+            el.style.bottom = "";
+            popup.isTopdown = true;
+        }
+
+        el.style.display = "";
+        this.renderer.$textLayer.checkForSizeChanges();
+
+        var left = pos.left;
+        if (left + el.offsetWidth > screenWidth)
+            left = screenWidth - el.offsetWidth;
+
+        el.style.left = left + "px";
+
+        this._signal("show");
+        lastMouseEvent = null;
+        popup.isOpen = true;
+    };
+
+    popup.getTextLeftOffset = function() {
+        return this.$borderSize + this.renderer.$padding + this.$imageSize;
+    };
+
+    popup.$imageSize = 0;
+    popup.$borderSize = 1;
+
+    return popup;
+};
+
+dom.importCssString("\
+.ace_editor.ace_autocomplete .ace_marker-layer .ace_active-line {\
+    background-color: #CAD6FA;\
+    z-index: 1;\
+}\
+.ace_editor.ace_autocomplete .ace_line-hover {\
+    border: 1px solid #abbffe;\
+    margin-top: -1px;\
+    background: rgba(233,233,253,0.4);\
+}\
+.ace_editor.ace_autocomplete .ace_line-hover {\
+    position: absolute;\
+    z-index: 2;\
+}\
+.ace_editor.ace_autocomplete .ace_scroller {\
+   background: none;\
+   border: none;\
+   box-shadow: none;\
+}\
+.ace_rightAlignedText {\
+    color: gray;\
+    display: inline-block;\
+    position: absolute;\
+    right: 4px;\
+    text-align: right;\
+    z-index: -1;\
+}\
+.ace_editor.ace_autocomplete .ace_completion-highlight{\
+    color: #000;\
+    text-shadow: 0 0 0.01em;\
+}\
+.ace_editor.ace_autocomplete {\
+    width: 280px;\
+    z-index: 200000;\
+    background: #fbfbfb;\
+    color: #444;\
+    border: 1px lightgray solid;\
+    position: fixed;\
+    box-shadow: 2px 3px 5px rgba(0,0,0,.2);\
+    line-height: 1.4;\
+}");
+
+exports.AcePopup = AcePopup;
+
+});
+
+define("ace/autocomplete/util",["require","exports","module"], function(require, exports, module) {
+"use strict";
+
+exports.parForEach = function(array, fn, callback) {
+    var completed = 0;
+    var arLength = array.length;
+    if (arLength === 0)
+        callback();
+    for (var i = 0; i < arLength; i++) {
+        fn(array[i], function(result, err) {
+            completed++;
+            if (completed === arLength)
+                callback(result, err);
+        });
+    }
+};
+
+var ID_REGEX = /[a-zA-Z_0-9\$\-\u00A2-\uFFFF]/;
+
+exports.retrievePrecedingIdentifier = function(text, pos, regex) {
+    regex = regex || ID_REGEX;
+    var buf = [];
+    for (var i = pos-1; i >= 0; i--) {
+        if (regex.test(text[i]))
+            buf.push(text[i]);
+        else
+            break;
+    }
+    return buf.reverse().join("");
+};
+
+exports.retrieveFollowingIdentifier = function(text, pos, regex) {
+    regex = regex || ID_REGEX;
+    var buf = [];
+    for (var i = pos; i < text.length; i++) {
+        if (regex.test(text[i]))
+            buf.push(text[i]);
+        else
+            break;
+    }
+    return buf;
+};
+
+exports.getCompletionPrefix = function (editor) {
+    var pos = editor.getCursorPosition();
+    var line = editor.session.getLine(pos.row);
+    var prefix;
+    editor.completers.forEach(function(completer) {
+        if (completer.identifierRegexps) {
+            completer.identifierRegexps.forEach(function(identifierRegex) {
+                if (!prefix && identifierRegex)
+                    prefix = this.retrievePrecedingIdentifier(line, pos.column, identifierRegex);
+            }.bind(this));
+        }
+    }.bind(this));
+    return prefix || this.retrievePrecedingIdentifier(line, pos.column);
+};
+
+});
+
+define("ace/autocomplete",["require","exports","module","ace/keyboard/hash_handler","ace/autocomplete/popup","ace/autocomplete/util","ace/lib/event","ace/lib/lang","ace/lib/dom","ace/snippets"], function(require, exports, module) {
+"use strict";
+
+var HashHandler = require("./keyboard/hash_handler").HashHandler;
+var AcePopup = require("./autocomplete/popup").AcePopup;
+var util = require("./autocomplete/util");
+var event = require("./lib/event");
+var lang = require("./lib/lang");
+var dom = require("./lib/dom");
+var snippetManager = require("./snippets").snippetManager;
+
+var Autocomplete = function() {
+    this.autoInsert = false;
+    this.autoSelect = true;
+    this.exactMatch = false;
+    this.gatherCompletionsId = 0;
+    this.keyboardHandler = new HashHandler();
+    this.keyboardHandler.bindKeys(this.commands);
+
+    this.blurListener = this.blurListener.bind(this);
+    this.changeListener = this.changeListener.bind(this);
+    this.mousedownListener = this.mousedownListener.bind(this);
+    this.mousewheelListener = this.mousewheelListener.bind(this);
+
+    this.changeTimer = lang.delayedCall(function() {
+        this.updateCompletions(true);
+    }.bind(this));
+
+    this.tooltipTimer = lang.delayedCall(this.updateDocTooltip.bind(this), 50);
+};
+
+(function() {
+
+    this.$init = function() {
+        this.popup = new AcePopup(document.body || document.documentElement);
+        this.popup.on("click", function(e) {
+            this.insertMatch();
+            e.stop();
+        }.bind(this));
+        this.popup.focus = this.editor.focus.bind(this.editor);
+        this.popup.on("show", this.tooltipTimer.bind(null, null));
+        this.popup.on("select", this.tooltipTimer.bind(null, null));
+        this.popup.on("changeHoverMarker", this.tooltipTimer.bind(null, null));
+        return this.popup;
+    };
+
+    this.getPopup = function() {
+        return this.popup || this.$init();
+    };
+
+    this.openPopup = function(editor, prefix, keepPopupPosition) {
+        if (!this.popup)
+            this.$init();
+
+        this.popup.setData(this.completions.filtered);
+
+        editor.keyBinding.addKeyboardHandler(this.keyboardHandler);
+        
+        var renderer = editor.renderer;
+        this.popup.setRow(this.autoSelect ? 0 : -1);
+        if (!keepPopupPosition) {
+            this.popup.setTheme(editor.getTheme());
+            this.popup.setFontSize(editor.getFontSize());
+
+            var lineHeight = renderer.layerConfig.lineHeight;
+
+            var pos = renderer.$cursorLayer.getPixelPosition(this.base, true);
+            pos.left -= this.popup.getTextLeftOffset();
+
+            var rect = editor.container.getBoundingClientRect();
+            pos.top += rect.top - renderer.layerConfig.offset;
+            pos.left += rect.left - editor.renderer.scrollLeft;
+            pos.left += renderer.gutterWidth;
+
+            this.popup.show(pos, lineHeight);
+        } else if (keepPopupPosition && !prefix) {
+            this.detach();
+        }
+    };
+
+    this.detach = function() {
+        this.editor.keyBinding.removeKeyboardHandler(this.keyboardHandler);
+        this.editor.off("changeSelection", this.changeListener);
+        this.editor.off("blur", this.blurListener);
+        this.editor.off("mousedown", this.mousedownListener);
+        this.editor.off("mousewheel", this.mousewheelListener);
+        this.changeTimer.cancel();
+        this.hideDocTooltip();
+
+        this.gatherCompletionsId += 1;
+        if (this.popup && this.popup.isOpen)
+            this.popup.hide();
+
+        if (this.base)
+            this.base.detach();
+        this.activated = false;
+        this.completions = this.base = null;
+    };
+
+    this.changeListener = function(e) {
+        var cursor = this.editor.selection.lead;
+        if (cursor.row != this.base.row || cursor.column < this.base.column) {
+            this.detach();
+        }
+        if (this.activated)
+            this.changeTimer.schedule();
+        else
+            this.detach();
+    };
+
+    this.blurListener = function(e) {
+        var el = document.activeElement;
+        var text = this.editor.textInput.getElement();
+        var fromTooltip = e.relatedTarget && e.relatedTarget == this.tooltipNode;
+        var container = this.popup && this.popup.container;
+        if (el != text && el.parentNode != container && !fromTooltip
+            && el != this.tooltipNode && e.relatedTarget != text
+        ) {
+            this.detach();
+        }
+    };
+
+    this.mousedownListener = function(e) {
+        this.detach();
+    };
+
+    this.mousewheelListener = function(e) {
+        this.detach();
+    };
+
+    this.goTo = function(where) {
+        var row = this.popup.getRow();
+        var max = this.popup.session.getLength() - 1;
+
+        switch(where) {
+            case "up": row = row <= 0 ? max : row - 1; break;
+            case "down": row = row >= max ? -1 : row + 1; break;
+            case "start": row = 0; break;
+            case "end": row = max; break;
+        }
+
+        this.popup.setRow(row);
+    };
+
+    this.insertMatch = function(data, options) {
+        if (!data)
+            data = this.popup.getData(this.popup.getRow());
+        if (!data)
+            return false;
+
+        if (data.completer && data.completer.insertMatch) {
+            data.completer.insertMatch(this.editor, data);
+        } else {
+            if (this.completions.filterText) {
+                var ranges = this.editor.selection.getAllRanges();
+                for (var i = 0, range; range = ranges[i]; i++) {
+                    range.start.column -= this.completions.filterText.length;
+                    this.editor.session.remove(range);
+                }
+            }
+            if (data.snippet)
+                snippetManager.insertSnippet(this.editor, data.snippet);
+            else
+                this.editor.execCommand("insertstring", data.value || data);
+        }
+        this.detach();
+    };
+
+
+    this.commands = {
+        "Up": function(editor) { editor.completer.goTo("up"); },
+        "Down": function(editor) { editor.completer.goTo("down"); },
+        "Ctrl-Up|Ctrl-Home": function(editor) { editor.completer.goTo("start"); },
+        "Ctrl-Down|Ctrl-End": function(editor) { editor.completer.goTo("end"); },
+
+        "Esc": function(editor) { editor.completer.detach(); },
+        "Return": function(editor) { return editor.completer.insertMatch(); },
+        "Shift-Return": function(editor) { editor.completer.insertMatch(null, {deleteSuffix: true}); },
+        "Tab": function(editor) {
+            var result = editor.completer.insertMatch();
+            if (!result && !editor.tabstopManager)
+                editor.completer.goTo("down");
+            else
+                return result;
+        },
+
+        "PageUp": function(editor) { editor.completer.popup.gotoPageUp(); },
+        "PageDown": function(editor) { editor.completer.popup.gotoPageDown(); }
+    };
+
+    this.gatherCompletions = function(editor, callback) {
+        var session = editor.getSession();
+        var pos = editor.getCursorPosition();
+
+        var line = session.getLine(pos.row);
+        var prefix = util.getCompletionPrefix(editor);
+
+        this.base = session.doc.createAnchor(pos.row, pos.column - prefix.length);
+        this.base.$insertRight = true;
+
+        var matches = [];
+        var total = editor.completers.length;
+        editor.completers.forEach(function(completer, i) {
+            completer.getCompletions(editor, session, pos, prefix, function(err, results) {
+                if (!err && results)
+                    matches = matches.concat(results);
+                var pos = editor.getCursorPosition();
+                var line = session.getLine(pos.row);
+                callback(null, {
+                    prefix: prefix,
+                    matches: matches,
+                    finished: (--total === 0)
+                });
+            });
+        });
+        return true;
+    };
+
+    this.showPopup = function(editor) {
+        if (this.editor)
+            this.detach();
+
+        this.activated = true;
+
+        this.editor = editor;
+        if (editor.completer != this) {
+            if (editor.completer)
+                editor.completer.detach();
+            editor.completer = this;
+        }
+
+        editor.on("changeSelection", this.changeListener);
+        editor.on("blur", this.blurListener);
+        editor.on("mousedown", this.mousedownListener);
+        editor.on("mousewheel", this.mousewheelListener);
+
+        this.updateCompletions();
+    };
+
+    this.updateCompletions = function(keepPopupPosition) {
+        if (keepPopupPosition && this.base && this.completions) {
+            var pos = this.editor.getCursorPosition();
+            var prefix = this.editor.session.getTextRange({start: this.base, end: pos});
+            if (prefix == this.completions.filterText)
+                return;
+            this.completions.setFilter(prefix);
+            if (!this.completions.filtered.length)
+                return this.detach();
+            if (this.completions.filtered.length == 1
+            && this.completions.filtered[0].value == prefix
+            && !this.completions.filtered[0].snippet)
+                return this.detach();
+            this.openPopup(this.editor, prefix, keepPopupPosition);
+            return;
+        }
+        var _id = this.gatherCompletionsId;
+        this.gatherCompletions(this.editor, function(err, results) {
+            var detachIfFinished = function() {
+                if (!results.finished) return;
+                return this.detach();
+            }.bind(this);
+
+            var prefix = results.prefix;
+            var matches = results && results.matches;
+
+            if (!matches || !matches.length)
+                return detachIfFinished();
+            if (prefix.indexOf(results.prefix) !== 0 || _id != this.gatherCompletionsId)
+                return;
+
+            this.completions = new FilteredList(matches);
+
+            if (this.exactMatch)
+                this.completions.exactMatch = true;
+
+            this.completions.setFilter(prefix);
+            var filtered = this.completions.filtered;
+            if (!filtered.length)
+                return detachIfFinished();
+            if (filtered.length == 1 && filtered[0].value == prefix && !filtered[0].snippet)
+                return detachIfFinished();
+            if (this.autoInsert && filtered.length == 1 && results.finished)
+                return this.insertMatch(filtered[0]);
+
+            this.openPopup(this.editor, prefix, keepPopupPosition);
+        }.bind(this));
+    };
+
+    this.cancelContextMenu = function() {
+        this.editor.$mouseHandler.cancelContextMenu();
+    };
+
+    this.updateDocTooltip = function() {
+        var popup = this.popup;
+        var all = popup.data;
+        var selected = all && (all[popup.getHoveredRow()] || all[popup.getRow()]);
+        var doc = null;
+        if (!selected || !this.editor || !this.popup.isOpen)
+            return this.hideDocTooltip();
+        this.editor.completers.some(function(completer) {
+            if (completer.getDocTooltip)
+                doc = completer.getDocTooltip(selected);
+            return doc;
+        });
+        if (!doc)
+            doc = selected;
+
+        if (typeof doc == "string")
+            doc = {docText: doc};
+        if (!doc || !(doc.docHTML || doc.docText))
+            return this.hideDocTooltip();
+        this.showDocTooltip(doc);
+    };
+
+    this.showDocTooltip = function(item) {
+        if (!this.tooltipNode) {
+            this.tooltipNode = dom.createElement("div");
+            this.tooltipNode.className = "ace_tooltip ace_doc-tooltip";
+            this.tooltipNode.style.margin = 0;
+            this.tooltipNode.style.pointerEvents = "auto";
+            this.tooltipNode.tabIndex = -1;
+            this.tooltipNode.onblur = this.blurListener.bind(this);
+        }
+
+        var tooltipNode = this.tooltipNode;
+        if (item.docHTML) {
+            tooltipNode.innerHTML = item.docHTML;
+        } else if (item.docText) {
+            tooltipNode.textContent = item.docText;
+        }
+
+        if (!tooltipNode.parentNode)
+            document.body.appendChild(tooltipNode);
+        var popup = this.popup;
+        var rect = popup.container.getBoundingClientRect();
+        tooltipNode.style.top = popup.container.style.top;
+        tooltipNode.style.bottom = popup.container.style.bottom;
+
+        if (window.innerWidth - rect.right < 320) {
+            tooltipNode.style.right = window.innerWidth - rect.left + "px";
+            tooltipNode.style.left = "";
+        } else {
+            tooltipNode.style.left = (rect.right + 1) + "px";
+            tooltipNode.style.right = "";
+        }
+        tooltipNode.style.display = "block";
+    };
+
+    this.hideDocTooltip = function() {
+        this.tooltipTimer.cancel();
+        if (!this.tooltipNode) return;
+        var el = this.tooltipNode;
+        if (!this.editor.isFocused() && document.activeElement == el)
+            this.editor.focus();
+        this.tooltipNode = null;
+        if (el.parentNode)
+            el.parentNode.removeChild(el);
+    };
+
+}).call(Autocomplete.prototype);
+
+Autocomplete.startCommand = {
+    name: "startAutocomplete",
+    exec: function(editor) {
+        if (!editor.completer)
+            editor.completer = new Autocomplete();
+        editor.completer.autoInsert = false;
+        editor.completer.autoSelect = true;
+        editor.completer.showPopup(editor);
+        editor.completer.cancelContextMenu();
+    },
+    bindKey: "Ctrl-Space|Ctrl-Shift-Space|Alt-Space"
+};
+
+var FilteredList = function(array, filterText) {
+    this.all = array;
+    this.filtered = array;
+    this.filterText = filterText || "";
+    this.exactMatch = false;
+};
+(function(){
+    this.setFilter = function(str) {
+        if (str.length > this.filterText && str.lastIndexOf(this.filterText, 0) === 0)
+            var matches = this.filtered;
+        else
+            var matches = this.all;
+
+        this.filterText = str;
+        matches = this.filterCompletions(matches, this.filterText);
+        matches = matches.sort(function(a, b) {
+            return b.exactMatch - a.exactMatch || b.score - a.score;
+        });
+        var prev = null;
+        matches = matches.filter(function(item){
+            var caption = item.snippet || item.caption || item.value;
+            if (caption === prev) return false;
+            prev = caption;
+            return true;
+        });
+
+        this.filtered = matches;
+    };
+    this.filterCompletions = function(items, needle) {
+        var results = [];
+        var upper = needle.toUpperCase();
+        var lower = needle.toLowerCase();
+        loop: for (var i = 0, item; item = items[i]; i++) {
+            var caption = item.value || item.caption || item.snippet;
+            if (!caption) continue;
+            var lastIndex = -1;
+            var matchMask = 0;
+            var penalty = 0;
+            var index, distance;
+
+            if (this.exactMatch) {
+                if (needle !== caption.substr(0, needle.length))
+                    continue loop;
+            }else{
+                for (var j = 0; j < needle.length; j++) {
+                    var i1 = caption.indexOf(lower[j], lastIndex + 1);
+                    var i2 = caption.indexOf(upper[j], lastIndex + 1);
+                    index = (i1 >= 0) ? ((i2 < 0 || i1 < i2) ? i1 : i2) : i2;
+                    if (index < 0)
+                        continue loop;
+                    distance = index - lastIndex - 1;
+                    if (distance > 0) {
+                        if (lastIndex === -1)
+                            penalty += 10;
+                        penalty += distance;
+                    }
+                    matchMask = matchMask | (1 << index);
+                    lastIndex = index;
+                }
+            }
+            item.matchMask = matchMask;
+            item.exactMatch = penalty ? 0 : 1;
+            item.score = (item.score || 0) - penalty;
+            results.push(item);
+        }
+        return results;
+    };
+}).call(FilteredList.prototype);
+
+exports.Autocomplete = Autocomplete;
+exports.FilteredList = FilteredList;
+
+});
+
+define("ace/autocomplete/text_completer",["require","exports","module","ace/range"], function(require, exports, module) {
+    var Range = require("../range").Range;
+    
+    var splitRegex = /[^a-zA-Z_0-9\$\-\u00C0-\u1FFF\u2C00-\uD7FF\w]+/;
+
+    function getWordIndex(doc, pos) {
+        var textBefore = doc.getTextRange(Range.fromPoints({row: 0, column:0}, pos));
+        return textBefore.split(splitRegex).length - 1;
+    }
+    function wordDistance(doc, pos) {
+        var prefixPos = getWordIndex(doc, pos);
+        var words = doc.getValue().split(splitRegex);
+        var wordScores = Object.create(null);
+        
+        var currentWord = words[prefixPos];
+
+        words.forEach(function(word, idx) {
+            if (!word || word === currentWord) return;
+
+            var distance = Math.abs(prefixPos - idx);
+            var score = words.length - distance;
+            if (wordScores[word]) {
+                wordScores[word] = Math.max(score, wordScores[word]);
+            } else {
+                wordScores[word] = score;
+            }
+        });
+        return wordScores;
+    }
+
+    exports.getCompletions = function(editor, session, pos, prefix, callback) {
+        var wordScore = wordDistance(session, pos, prefix);
+        var wordList = Object.keys(wordScore);
+        callback(null, wordList.map(function(word) {
+            return {
+                caption: word,
+                value: word,
+                score: wordScore[word],
+                meta: "local"
+            };
+        }));
+    };
+});
+
+define("ace/ext/language_tools",["require","exports","module","ace/snippets","ace/autocomplete","ace/config","ace/lib/lang","ace/autocomplete/util","ace/autocomplete/text_completer","ace/editor","ace/config"], function(require, exports, module) {
+"use strict";
+
+var snippetManager = require("../snippets").snippetManager;
+var Autocomplete = require("../autocomplete").Autocomplete;
+var config = require("../config");
+var lang = require("../lib/lang");
+var util = require("../autocomplete/util");
+
+var textCompleter = require("../autocomplete/text_completer");
+var keyWordCompleter = {
+    getCompletions: function(editor, session, pos, prefix, callback) {
+        if (session.$mode.completer) {
+            return session.$mode.completer.getCompletions(editor, session, pos, prefix, callback);
+        }
+        var state = editor.session.getState(pos.row);
+        var completions = session.$mode.getCompletions(state, session, pos, prefix);
+        callback(null, completions);
+    }
+};
+
+var snippetCompleter = {
+    getCompletions: function(editor, session, pos, prefix, callback) {
+        var snippetMap = snippetManager.snippetMap;
+        var completions = [];
+        snippetManager.getActiveScopes(editor).forEach(function(scope) {
+            var snippets = snippetMap[scope] || [];
+            for (var i = snippets.length; i--;) {
+                var s = snippets[i];
+                var caption = s.name || s.tabTrigger;
+                if (!caption)
+                    continue;
+                completions.push({
+                    caption: caption,
+                    snippet: s.content,
+                    meta: s.tabTrigger && !s.name ? s.tabTrigger + "\u21E5 " : "snippet",
+                    type: "snippet"
+                });
+            }
+        }, this);
+        callback(null, completions);
+    },
+    getDocTooltip: function(item) {
+        if (item.type == "snippet" && !item.docHTML) {
+            item.docHTML = [
+                "<b>", lang.escapeHTML(item.caption), "</b>", "<hr></hr>",
+                lang.escapeHTML(item.snippet)
+            ].join("");
+        }
+    }
+};
+
+var completers = [snippetCompleter, textCompleter, keyWordCompleter];
+exports.setCompleters = function(val) {
+    completers.length = 0;
+    if (val) completers.push.apply(completers, val);
+};
+exports.addCompleter = function(completer) {
+    completers.push(completer);
+};
+exports.textCompleter = textCompleter;
+exports.keyWordCompleter = keyWordCompleter;
+exports.snippetCompleter = snippetCompleter;
+
+var expandSnippet = {
+    name: "expandSnippet",
+    exec: function(editor) {
+        return snippetManager.expandWithTab(editor);
+    },
+    bindKey: "Tab"
+};
+
+var onChangeMode = function(e, editor) {
+    loadSnippetsForMode(editor.session.$mode);
+};
+
+var loadSnippetsForMode = function(mode) {
+    var id = mode.$id;
+    if (!snippetManager.files)
+        snippetManager.files = {};
+    loadSnippetFile(id);
+    if (mode.modes)
+        mode.modes.forEach(loadSnippetsForMode);
+};
+
+var loadSnippetFile = function(id) {
+    if (!id || snippetManager.files[id])
+        return;
+    var snippetFilePath = id.replace("mode", "snippets");
+    snippetManager.files[id] = {};
+    config.loadModule(snippetFilePath, function(m) {
+        if (m) {
+            snippetManager.files[id] = m;
+            if (!m.snippets && m.snippetText)
+                m.snippets = snippetManager.parseSnippetFile(m.snippetText);
+            snippetManager.register(m.snippets || [], m.scope);
+            if (m.includeScopes) {
+                snippetManager.snippetMap[m.scope].includeScopes = m.includeScopes;
+                m.includeScopes.forEach(function(x) {
+                    loadSnippetFile("ace/mode/" + x);
+                });
+            }
+        }
+    });
+};
+
+var doLiveAutocomplete = function(e) {
+    var editor = e.editor;
+    var hasCompleter = editor.completer && editor.completer.activated;
+    if (e.command.name === "backspace") {
+        if (hasCompleter && !util.getCompletionPrefix(editor))
+            editor.completer.detach();
+    }
+    else if (e.command.name === "insertstring") {
+        var prefix = util.getCompletionPrefix(editor);
+        if (prefix && prefix.length >= editor.$liveAutocompletionThreshold && !hasCompleter) {
+            if (!editor.completer) {
+                editor.completer = new Autocomplete();
+            }
+            editor.completer.autoInsert = false;
+            editor.completer.showPopup(editor);
+        }
+    }
+};
+
+var lastExec_e;
+var liveAutocompleteTimer = lang.delayedCall(function () { doLiveAutocomplete(lastExec_e); }, 0);
+
+var scheduleAutocomplete = function(e) {
+    lastExec_e = e;
+    liveAutocompleteTimer.delay(e.editor.$liveAutocompletionDelay);
+}
+
+
+var Editor = require("../editor").Editor;
+require("../config").defineOptions(Editor.prototype, "editor", {
+    enableBasicAutocompletion: {
+        set: function(val) {
+            if (val) {
+                if (!this.completers)
+                    this.completers = Array.isArray(val)? val: completers;
+                this.commands.addCommand(Autocomplete.startCommand);
+            } else {
+                this.commands.removeCommand(Autocomplete.startCommand);
+            }
+        },
+        value: false
+    },
+    enableLiveAutocompletion: {
+        set: function(val) {
+            if (val) {
+                if (!this.completers)
+                    this.completers = Array.isArray(val)? val: completers;
+                // this.commands.on('afterExec', doLiveAutocomplete);
+                this.commands.on('afterExec', scheduleAutocomplete);
+            } else {
+                // this.commands.removeListener('afterExec', doLiveAutocomplete);
+                this.commands.removeListener('afterExec', scheduleAutocomplete);
+            }
+        },
+        value: false
+    },
+    liveAutocompletionDelay: {
+        value: 100
+    },
+    liveAutocompletionThreshold: {
+        value: 0
+    },
+    enableSnippets: {
+        set: function(val) {
+            if (val) {
+                this.commands.addCommand(expandSnippet);
+                this.on("changeMode", onChangeMode);
+                onChangeMode(null, this);
+            } else {
+                this.commands.removeCommand(expandSnippet);
+                this.off("changeMode", onChangeMode);
+            }
+        },
+        value: false
+    }
+});
+});
                 (function() {
                     window.require(["ace/ext/language_tools"], function() {});
                 })();
diff --git a/client/styles/styles.css b/client/styles/styles.css
index 87efa0c..36437c8 100644
--- a/client/styles/styles.css
+++ b/client/styles/styles.css
@@ -129,6 +129,7 @@ html, body {
 }
 
 .landing-btn{
+  color: #565656;
   margin: 10px;
 }
 
@@ -171,14 +172,67 @@ html, body {
 #start-btn {
   z-index: 10;
   color: #444;
-  background-color: #FFA25E;
+  background-color: #FFA25E; 
 }
 
-#menu1{
+#start-btn:active {
+  z-index: 10;
+  color: #444;
+  background-color: #FFB37B !important;
+}
+
+#start-btn:hover {
+  z-index: 10;
+  color: #444;
+  background-color: #FFB37B !important;
+}
+
+#login-register-btn {
+  z-index: 10;
+  color: #444;
+  background-color: #FFA25E; 
+}
+
+#login-register-btn:active {
+  z-index: 10;
+  color: #444;
+  background-color: #FFB37B !important;
+}
+
+#login-register-btn:hover {
+  z-index: 10;
+  color: #444;
+  background-color: #FFB37B !important;
+}
+
+#join-multi-btn {
+  z-index: 10;
+  color: #444;
+  background-color: #FFA25E; 
+}
+
+#join-multi-btn:active {
+  z-index: 10;
+  color: #444;
+  background-color: #FFB37B !important;
+}
+
+#join-multi-btn:hover {
+  z-index: 10;
+  color: #444;
+  background-color: #FFB37B !important;
+}
+
+#menu1 {
   color: white;
   background-color: #009688; 
 }
 
+#menu1:hover {
+  color: white;
+  background-color: #20A294; 
+}
+
 #level-display-container {
   height: 0px;
 }
@@ -221,16 +275,15 @@ html, body {
 .oj-btn:active {
   z-index: 10;
   color: #444;
-  background-color: #FFA666 !important;
+  background-color: #FFB37B !important;
 }
 
 .oj-btn:hover {
   z-index: 10;
   color: #444;
-  background-color: #FFA666 !important;
+  background-color: #FFB37B !important;
 }
 
-
 .teal-btn {
   z-index: 10;
   color: #444;