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// Boost string_algo library string_funct.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_CASE_CONV_DETAIL_HPP
#define BOOST_STRING_CASE_CONV_DETAIL_HPP
#include <boost/algorithm/string/config.hpp>
#include <locale>
#include <functional>
namespace boost {
namespace algorithm {
namespace detail {
// case conversion functors -----------------------------------------------//
// a tolower functor
template<typename CharT>
struct to_lowerF : public std::unary_function<CharT, CharT>
{
// Constructor
to_lowerF( const std::locale& Loc ) : m_Loc( Loc ) {}
// Operation
CharT operator ()( CharT Ch ) const
{
#if defined(__BORLANDC__) && (__BORLANDC__ >= 0x560) && (__BORLANDC__ <= 0x564) && !defined(_USE_OLD_RW_STL)
return std::tolower( Ch);
#else
return std::tolower<CharT>( Ch, m_Loc );
#endif
}
private:
const std::locale& m_Loc;
};
// a toupper functor
template<typename CharT>
struct to_upperF : public std::unary_function<CharT, CharT>
{
// Constructor
to_upperF( const std::locale& Loc ) : m_Loc( Loc ) {}
// Operation
CharT operator ()( CharT Ch ) const
{
#if defined(__BORLANDC__) && (__BORLANDC__ >= 0x560) && (__BORLANDC__ <= 0x564) && !defined(_USE_OLD_RW_STL)
return std::toupper( Ch);
#else
return std::toupper<CharT>( Ch, m_Loc );
#endif
}
private:
const std::locale& m_Loc;
};
// algorithm implementation -------------------------------------------------------------------------
// Transform a range
template<typename OutputIteratorT, typename RangeT, typename FunctorT>
OutputIteratorT transform_range_copy(
OutputIteratorT Output,
const RangeT& Input,
FunctorT Functor)
{
return std::transform(
begin(Input),
end(Input),
Output,
Functor);
}
// Transform a range (in-place)
template<typename RangeT, typename FunctorT>
void transform_range(
const RangeT& Input,
FunctorT Functor)
{
std::transform(
begin(Input),
end(Input),
begin(Input),
Functor);
}
template<typename SequenceT, typename RangeT, typename FunctorT>
inline SequenceT transform_range_copy(
const RangeT& Input,
FunctorT Functor)
{
return SequenceT(
make_transform_iterator(
begin(Input),
Functor),
make_transform_iterator(
end(Input),
Functor));
}
} // namespace detail
} // namespace algorithm
} // namespace boost
#endif // BOOST_STRING_CASE_CONV_DETAIL_HPP
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