importing more stuff from Belle proj

src/Umbraco.Web/UI/JavaScript/ServerVariablesParser.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using Newtonsoft.Json.Linq;
+
+namespace Umbraco.Web.UI.JavaScript
+{
+ 
+    internal class ServerVariablesParser
+    {
+
+        /// <summary>
+        /// Can allow developers to add custom variables on startup
+        /// </summary>
+        internal static EventHandler<Dictionary<string, object>> Parsing;
+
+        internal const string Token = "##Variables##";
+
+        internal static string Parse(Dictionary<string, object> items)
+        {
+            var vars = JsResources.ServerVariables;
+
+            if (Parsing != null)
+            {
+                Parsing(null, items);
+            }
+
+            var json = JObject.FromObject(items);
+            return vars.Replace(Token, json.ToString());            
+        }
+        
+    }
+}