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//  Boost string_algo library classification.hpp header file  ---------------------------//

//  Copyright Pavol Droba 2002-2003.
// 
// Distributed under the Boost Software License, Version 1.0.
//    (See accompanying file LICENSE_1_0.txt or copy at
//          http://www.boost.org/LICENSE_1_0.txt)

//  See http://www.boost.org/ for updates, documentation, and revision history.

#ifndef BOOST_STRING_CLASSIFICATION_DETAIL_HPP
#define BOOST_STRING_CLASSIFICATION_DETAIL_HPP

#include <boost/algorithm/string/config.hpp>
#include <algorithm>
#include <functional>
#include <locale>

#include <boost/range/begin.hpp>
#include <boost/range/end.hpp>

#include <boost/algorithm/string/predicate_facade.hpp>
#include <boost/type_traits/remove_const.hpp>

namespace boost {
    namespace algorithm {
        namespace detail {

//  classification functors -----------------------------------------------//

   // is_classified functor
            struct is_classifiedF :
                public predicate_facade<is_classifiedF>
            {
                // Boost.ResultOf support
                typedef bool result_type;

                // Constructor from a locale
                is_classifiedF(std::ctype_base::mask Type, std::locale const & Loc = std::locale()) :
                    m_Type(Type), m_Locale(Loc) {}
                // Operation
                template<typename CharT>
                bool operator()( CharT Ch ) const
                {
                    return std::use_facet< std::ctype<CharT> >(m_Locale).is( m_Type, Ch );
                }

                #if defined(__BORLANDC__) && (__BORLANDC__ >= 0x560) && (__BORLANDC__ <= 0x582) && !defined(_USE_OLD_RW_STL)
                    template<>
                    bool operator()( char const Ch ) const
                    {
                        return std::use_facet< std::ctype<char> >(m_Locale).is( m_Type, Ch );
                    }
                #endif

            private:
                std::ctype_base::mask m_Type;
                std::locale m_Locale;
            };


            // is_any_of functor
            /*
                returns true if the value is from the specified set
            */
            template<typename CharT>
            struct is_any_ofF :
                public predicate_facade<is_any_ofF<CharT> >
            {
            private:
                // set cannot operate on const value-type
                typedef typename ::boost::remove_const<CharT>::type set_value_type;

            public:     
                // Boost.ResultOf support
                typedef bool result_type;

                // Constructor
                template<typename RangeT>
                is_any_ofF( const RangeT& Range ) : m_Size(0)
                {
                    // Prepare storage
                    m_Storage.m_dynSet=0;

                    std::size_t Size=::boost::distance(Range);
                    m_Size=Size;
                    set_value_type* Storage=0;

                    if(use_fixed_storage(m_Size))
                    {
                        // Use fixed storage
                        Storage=&m_Storage.m_fixSet[0];
                    }
                    else
                    {
                        // Use dynamic storage
                        m_Storage.m_dynSet=new set_value_type[m_Size];
                        Storage=m_Storage.m_dynSet;
                    }

                    // Use fixed storage
                    ::std::copy(::boost::begin(Range), ::boost::end(Range), Storage);
                    ::std::sort(Storage, Storage+m_Size);
                }

                // Copy constructor
                is_any_ofF(const is_any_ofF& Other) : m_Size(Other.m_Size)
                {
                    // Prepare storage
                    m_Storage.m_dynSet=0;               
                    const set_value_type* SrcStorage=0;
                    set_value_type* DestStorage=0;

                    if(use_fixed_storage(m_Size))
                    {
                        // Use fixed storage
                        DestStorage=&m_Storage.m_fixSet[0];
                        SrcStorage=&Other.m_Storage.m_fixSet[0];