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diff --git a/uv.h b/uv.h
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+/*
+ *  Quackle -- Crossword game artificial intelligence and analysis tool
+ *  Copyright (C) 2005-2006 Jason Katz-Brown and John O'Laughlin.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  
+ *  02110-1301  USA
+ */
+
+#ifndef QUACKLE_UV_H
+#define QUACKLE_UV_H
+
+#include <fstream>
+#include <iostream>
+#include <sstream>
+#include <string>
+
+using namespace std;
+
+/** Beginning of define options */
+
+// Whether to use wchar for Quackle's user-visible strings.
+// Not recommended.
+#ifndef QUACKLE_USE_WCHAR_FOR_USER_VISIBLE
+#define QUACKLE_USE_WCHAR_FOR_USER_VISIBLE 0
+#endif // !QUACKLE_USE_WCHAR_FOR_USER_VISIBLE
+
+/** End of define options */
+
+
+#if QUACKLE_USE_WCHAR_FOR_USER_VISIBLE
+typedef wstring UVString;
+typedef wchar_t UVChar;
+typedef wstringstream UVStringStream;
+typedef wistream UVIStream;
+typedef wostream UVOStream;
+typedef wostringstream UVOStringStream;
+typedef wistringstream UVIStringStream;
+typedef wifstream UVIFStream;
+typedef wofstream UVOFStream;
+#define UVcout wcout
+#define UVcerr wcerr
+#define MARK_UV(theString)  L ## theString
+#else
+typedef string UVString;
+typedef char UVChar;
+typedef stringstream UVStringStream;
+typedef istream UVIStream;
+typedef ostream UVOStream;
+typedef istringstream UVIStringStream;
+typedef ostringstream UVOStringStream;
+typedef ifstream UVIFStream;
+typedef ofstream UVOFStream;
+#define UVcout cout
+#define UVcerr cerr
+#define MARK_UV(theString)  theString
+#endif
+
+#endif