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Symbol.hpp

00001 /* This file is part of Raul.
00002  * Copyright (C) 2008-2009 David Robillard <http://drobilla.net>
00003  *
00004  * Raul is free software; you can redistribute it and/or modify it under the
00005  * terms of the GNU General Public License as published by the Free Software
00006  * Foundation; either version 2 of the License, or (at your option) any later
00007  * version.
00008  *
00009  * Raul is distributed in the hope that it will be useful, but WITHOUT ANY
00010  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
00011  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for details.
00012  *
00013  * You should have received a copy of the GNU General Public License along
00014  * with this program; if not, write to the Free Software Foundation, Inc.,
00015  * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
00016  */
00017 
00018 #ifndef RAUL_SYMBOL_HPP
00019 #define RAUL_SYMBOL_HPP
00020 
00021 #include <iostream>
00022 #include <cctype>
00023 #include <string>
00024 #include <cstring>
00025 #include <cassert>
00026 #include <glib.h>
00027 
00028 namespace Raul {
00029 
00030 
00042 class Symbol {
00043 public:
00049     Symbol(const std::basic_string<char>& symbol)
00050         : _str(g_intern_string(symbol.c_str()))
00051     {
00052         assert(is_valid(symbol));
00053     }
00054 
00055 
00061     Symbol(const char* csymbol)
00062         : _str(g_intern_string(csymbol))
00063     {
00064         assert(is_valid(csymbol));
00065     }
00066 
00067     inline const char* c_str() const { return _str; }
00068 
00069     inline bool operator==(const Symbol& other) const {
00070         return _str == other._str;
00071     }
00072 
00073     inline bool operator!=(const Symbol& other) const {
00074         return _str != other._str;
00075     }
00076 
00077     inline bool operator<(const Symbol& other) const {
00078         return strcmp(_str, other._str) < 0;
00079     }
00080 
00081     static bool is_valid(const std::basic_string<char>& symbol);
00082 
00083     static std::string symbolify(const std::basic_string<char>& str);
00084 
00085 private:
00086     const char* _str;
00087 };
00088 
00089 
00090 } // namespace Raul
00091 
00092 static inline std::ostream& operator<<(std::ostream& os, const Raul::Symbol& symbol)
00093 {
00094     return (os << symbol.c_str());
00095 }
00096 
00097 #endif // RAUL_SYMBOL_HPP

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