Moved mentions to MessageHelper, added Escape()

src/Discord.Net/MessageHelper.cs

@@ -0,0 +1,46 @@
+using System.Text;
+
+namespace Discord
+{
+    public static class MessageHelper
+	{
+		private static char[] specialChars = new char[] {'_', '*', '\\' }; //Backslash must always be last!
+
+		/// <summary> Removes all special formatting characters from the provided text. </summary>
+		public static string Escape(string text)
+		{
+			if (text.IndexOfAny(specialChars) >= 0)
+			{
+				StringBuilder builder = new StringBuilder(text);
+				foreach (char c in specialChars)
+				{
+					int length = builder.Length;
+					for (int i = 0; i < length; i++)
+					{
+						if (builder[i] == c)
+						{
+							builder.Insert(i, '\\');
+							length++;
+                        }
+                    }
+				}
+				return builder.ToString();
+			}
+			return text;
+        }
+
+		/// <summary> Returns the string used to create a user mention. </summary>
+		public static string User(User user)
+			=> $"<@{user.Id}>";
+		/// <summary> Returns the string used to create a user mention. </summary>
+		public static string User(string userId)
+			=> $"<@{userId}>";
+
+		/// <summary> Returns the string used to create a channel mention. </summary>
+		public static string Channel(Channel channel)
+			=> $"<#{channel.Id}>";
+		/// <summary> Returns the string used to create a channel mention. </summary>
+		public static string Channel(string channelId)
+			=> $"<#{channelId}>";
+	}
+}

src/Discord.Net/Models/User.cs

@@ -28,9 +28,6 @@ namespace Discord
 		/// <remarks> This field is only ever populated for the current logged in user. </remarks>
 		public bool IsVerified { get; internal set; }
 
-		/// <summary> Returns the string "&lt;@Id&gt;" to be used as a shortcut when including mentions in text. </summary>
-		public string Mention => $"<@{Id}>";
-
 		public string PrivateChannelId { get; set; }
 		public Channel PrivateChannel => _client.GetChannel(PrivateChannelId);