From 9e53823de30babd89151b1042d6e2aa72e44ead7 Mon Sep 17 00:00:00 2001
From: sta <sta.blockhead@gmail.com>
Date: Mon, 8 Oct 2018 21:10:15 +0900
Subject: [PATCH] [Modify] Add it

---
 websocket-sharp/Net/HttpUtility.cs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/websocket-sharp/Net/HttpUtility.cs b/websocket-sharp/Net/HttpUtility.cs
index d24db06d..0317cc4d 100644
--- a/websocket-sharp/Net/HttpUtility.cs
+++ b/websocket-sharp/Net/HttpUtility.cs
@@ -134,6 +134,17 @@ namespace WebSocketSharp.Net
                  : -1;
     }
 
+    private static int getNumber (char c)
+    {
+      return c >= '0' && c <= '9'
+             ? c - '0'
+             : c >= 'A' && c <= 'F'
+               ? c - 'A' + 10
+               : c >= 'a' && c <= 'f'
+                 ? c - 'a' + 10
+                 : -1;
+    }
+
     private static string htmlEncode (string s, bool minimal)
     {
       var buff = new StringBuilder ();