Import lwIP contrib rep

... from http://git.savannah.gnu.org/cgit/lwip/lwip-contrib.git/ into contrib/ subdir, STABLE-2_1_0_RELEASE tag
lwIP contrib is now officially frozen
TODO: Fix build

contrib/apps/LwipMibCompiler/SharpSnmpLib/Mib/Elements/Exports.cs

@@ -0,0 +1,56 @@
+/*
+ * Created by SharpDevelop.
+ * User: lextm
+ * Date: 2008/6/7
+ * Time: 17:34
+ * 
+ * To change this template use Tools | Options | Coding | Edit Standard Headers.
+ */
+
+using System.Collections.Generic;
+
+namespace Lextm.SharpSnmpLib.Mib.Elements
+{
+    /// <summary>
+    /// Description of Exports.
+    /// </summary>
+    public sealed class Exports: IElement
+    {
+        private IModule _module;
+        private readonly IList<string> _types = new List<string>();
+
+        public Exports(IModule module, ISymbolEnumerator s)
+        {
+            _module = module;
+
+            Symbol previous = null;
+            Symbol current;
+            do
+            {
+                current = s.NextSymbol();
+
+                if (current == Symbol.EOL)
+                {
+                    continue;
+                }
+                else if (((current == Symbol.Comma) || (current == Symbol.Semicolon)) && (previous != null))
+                {
+                    previous.AssertIsValidIdentifier();
+                    _types.Add(previous.ToString());
+                }
+
+                previous = current;
+            }
+            while (current != Symbol.Semicolon);
+        }
+
+        #region IElement Member
+
+        public IModule Module
+        {
+            get { return _module; }
+        }
+
+        #endregion
+    }
+}