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diff --git a/src/parser/smt2/smt2.h b/src/parser/smt2/smt2.h
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+/*********************                                                        */
+/** smt2.h
+ ** Original author: cconway
+ ** Major contributors:
+ ** Minor contributors (to current version): none
+ ** This file is part of the CVC4 prototype.
+ ** Copyright (c) 2009, 2010  The Analysis of Computer Systems Group (ACSys)
+ ** Courant Institute of Mathematical Sciences
+ ** New York University
+ ** See the file COPYING in the top-level source directory for licensing
+ ** information.
+ **
+ ** Definitions of SMT2 constants.
+ **/
+
+#include "cvc4parser_private.h"
+
+#ifndef __CVC4__PARSER__SMT2_H
+#define __CVC4__PARSER__SMT2_H
+
+#include <ext/hash_map>
+namespace std { using namespace __gnu_cxx; }
+
+#include "util/hash.h"
+
+namespace CVC4 {
+
+class SExpr;
+
+namespace parser {
+
+class Parser;
+
+class Smt2 {
+
+public:
+  enum Logic {
+    QF_AX,
+    QF_BV,
+    QF_LIA,
+    QF_LRA,
+    QF_UF,
+  };
+
+  enum Theory {
+    THEORY_ARRAYS,
+    THEORY_BITVECTORS,
+    THEORY_CORE,
+    THEORY_INTS,
+    THEORY_REALS,
+    THEORY_REALS_INTS,
+  };
+
+  /**
+   * Add theory symbols to the parser state.
+   *
+   * @param parser the CVC4 Parser object
+   * @param theory the theory to open (e.g., Core, Ints)
+   */
+  static void
+  addTheory(Parser& parser, Theory theory);
+
+  /**
+   * Sets the logic for the current benchmark. Declares any logic and theory symbols.
+   *
+   * @param parser the CVC4 Parser object
+   * @param name the name of the logic (e.g., QF_UF, AUFLIA)
+   */
+  static void
+  setLogic(Parser& parser, const std::string& name);
+
+  static void
+  setInfo(Parser& parser, const std::string& flag, const SExpr& sexpr);
+
+  static Logic toLogic(const std::string& name);
+
+private:
+
+  static void addArithmeticOperators(Parser& parser);
+  static std::hash_map<const std::string, Logic, CVC4::StringHashFunction> newLogicMap();
+};
+}/* CVC4::parser namespace */
+}/* CVC4 namespace */
+
+#endif /* __CVC4__PARSER__SMT2_INPUT_H */