1 files changed, 97 insertions, 0 deletions
diff --git a/runtime/CSharp2/Sources/Antlr3.Runtime/Antlr.Runtime/TokenConstants.cs b/runtime/CSharp2/Sources/Antlr3.Runtime/Antlr.Runtime/TokenConstants.cs
new file mode 100644
index 0000000..a6a2707
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+++ b/runtime/CSharp2/Sources/Antlr3.Runtime/Antlr.Runtime/TokenConstants.cs
@@ -0,0 +1,97 @@
+/*
+ * [The "BSD licence"]
+ * Copyright (c) 2005-2008 Terence Parr
+ * All rights reserved.
+ *
+ * Conversion to C#:
+ * Copyright (c) 2008-2009 Sam Harwell, Pixel Mine, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+namespace Antlr.Runtime
+{
+    public static class TokenChannels
+    {
+        /** <summary>
+         *  All tokens go to the parser (unless skip() is called in that rule)
+         *  on a particular "channel".  The parser tunes to a particular channel
+         *  so that whitespace etc... can go to the parser on a "hidden" channel.
+         *  </summary>
+         */
+        public const int Default = 0;
+
+        /** <summary>
+         *  Anything on different channel than DEFAULT_CHANNEL is not parsed
+         *  by parser.
+         *  </summary>
+         */
+        public const int Hidden = 99;
+    }
+
+    public static class TokenTypes
+    {
+        public const int EndOfFile = (int)CharStreamConstants.EndOfFile;
+        public const int Invalid = 0;
+        public const int EndOfRule = 1;
+        /** <summary>imaginary tree navigation type; traverse "get child" link</summary> */
+        public const int Down = 2;
+        /** <summary>imaginary tree navigation type; finish with a child list</summary> */
+        public const int Up = 3;
+        public const int Min = Up + 1;
+    }
+
+    public static class Tokens
+    {
+        public static readonly IToken EndOfFile = Tokens<CommonToken>.EndOfFile;
+
+        public static readonly IToken Invalid = new CommonToken( TokenTypes.Invalid );
+
+        /** <summary>
+         *  In an action, a lexer rule can set token to this SKIP_TOKEN and ANTLR
+         *  will avoid creating a token for this symbol and try to fetch another.
+         *  </summary>
+         */
+        public static readonly IToken Skip = new CommonToken( TokenTypes.Invalid );
+    }
+
+    public static class Tokens<T>
+        where T : IToken, new()
+    {
+        public static readonly T EndOfFile = new T()
+        {
+            Type = TokenTypes.EndOfFile
+        };
+
+        public static readonly T Invalid = new T()
+        {
+            Type = TokenTypes.Invalid
+        };
+
+        public static readonly T Skip = new T()
+        {
+            Type = TokenTypes.Invalid
+        };
+    }
+}