StringPredicates.h

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// 
//   Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Free Software
//   Foundation, Inc
// 
// 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 3 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 St, Fifth Floor, Boston, MA  02110-1301  USA
//


#ifndef GNASH_STRINGPREDICATES_H
#define GNASH_STRINGPREDICATES_H

#include <string>
#include <algorithm>
#include <boost/algorithm/string/compare.hpp>
#include <boost/algorithm/string/predicate.hpp>

namespace gnash {

class StringNoCaseLessThan {
public:
        bool operator() (const std::string& a, const std::string& b) const
        {
                return std::lexicographical_compare(a.begin(), a.end(),
                                                    b.begin(), b.end(),
                                                    nocase_less());
        }
private:

        class nocase_less
        {
        public:
                nocase_less(const std::locale& locale = std::locale())
                        : _locale(locale)
                {}

                bool operator() (const char& a, const char& b) const
                {
                        return std::toupper<char>(a, _locale) <
                               std::toupper<char>(b, _locale);
                }
        private:
                const std::locale& _locale;
        };
};


class StringNoCaseEqual {
public:

    typedef bool result_type;

        bool operator() (const std::string& a, const std::string& b) const
        {
                return boost::iequals(a, b);
        }
};

} // namespace gnash

#endif // GNASH_STRINGPREDICATES_H

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