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diff --git a/src/libfsm/binvar.h b/src/libfsm/binvar.h
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+/*
+ * Copyright 2014-2018 Adrian Thurston <thurston@colm.net>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef RAGEL_BINVAR_H
+#define RAGEL_BINVAR_H
+
+#include "binary.h"
+#include "actloop.h"
+#include "actexp.h"
+
+struct BinVar
+:
+	public Binary, public TabVar
+{
+	BinVar( const CodeGenArgs &args, Binary::Type type )
+	:
+		Tables( args ),
+		Binary( args, type ),
+		TabVar( args )
+	{}
+
+	void VAR_COND_BIN_SEARCH( Variable &var, TableArray &keys, std::string ok, std::string error );
+
+	void LOCATE_TRANS();
+	void LOCATE_COND();
+};
+
+class BinVarLoop
+	: public BinVar, public ActLoop
+{
+public:
+	BinVarLoop( const CodeGenArgs &args )
+	:
+		Tables( args ),
+		BinVar( args, Loop ),
+		ActLoop( args )
+	{}
+};
+
+class BinVarExp
+:
+	public BinVar, public ActExp
+{
+public:
+	BinVarExp( const CodeGenArgs &args ) 
+	:
+		Tables( args ),
+		BinVar( args, Exp ),
+		ActExp( args )
+	{}
+};
+
+#endif