// Boost string_algo library string_funct.hpp header file ---------------------------//
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// Copyright Pavol Droba 2002-2003.
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/ for updates, documentation, and revision history.
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#ifndef BOOST_STRING_CASE_CONV_DETAIL_HPP
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#define BOOST_STRING_CASE_CONV_DETAIL_HPP
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#include <boost/algorithm/string/config.hpp>
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#include <locale>
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#include <functional>
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#include <boost/iterator/transform_iterator.hpp>
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#include <boost/range/begin.hpp>
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#include <boost/range/end.hpp>
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#include <boost/type_traits/make_unsigned.hpp>
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namespace boost {
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namespace algorithm {
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namespace detail {
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// case conversion functors -----------------------------------------------//
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#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
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#pragma warning(push)
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#pragma warning(disable:4512) //assignment operator could not be generated
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#endif
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// a tolower functor
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template<typename CharT>
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struct to_lowerF
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{
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typedef CharT argument_type;
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typedef CharT result_type;
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// Constructor
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to_lowerF( const std::locale& Loc ) : m_Loc( &Loc ) {}
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// Operation
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CharT operator ()( CharT Ch ) const
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{
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#if defined(BOOST_BORLANDC) && (BOOST_BORLANDC >= 0x560) && (BOOST_BORLANDC <= 0x564) && !defined(_USE_OLD_RW_STL)
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return std::tolower( static_cast<typename boost::make_unsigned <CharT>::type> ( Ch ));
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#else
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return std::tolower<CharT>( Ch, *m_Loc );
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#endif
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}
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private:
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const std::locale* m_Loc;
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};
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// a toupper functor
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template<typename CharT>
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struct to_upperF
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{
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typedef CharT argument_type;
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typedef CharT result_type;
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// Constructor
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to_upperF( const std::locale& Loc ) : m_Loc( &Loc ) {}
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// Operation
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CharT operator ()( CharT Ch ) const
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{
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#if defined(BOOST_BORLANDC) && (BOOST_BORLANDC >= 0x560) && (BOOST_BORLANDC <= 0x564) && !defined(_USE_OLD_RW_STL)
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return std::toupper( static_cast<typename boost::make_unsigned <CharT>::type> ( Ch ));
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#else
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return std::toupper<CharT>( Ch, *m_Loc );
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#endif
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}
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private:
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const std::locale* m_Loc;
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};
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#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
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#pragma warning(pop)
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#endif
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// algorithm implementation -------------------------------------------------------------------------
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// Transform a range
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template<typename OutputIteratorT, typename RangeT, typename FunctorT>
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OutputIteratorT transform_range_copy(
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OutputIteratorT Output,
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const RangeT& Input,
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FunctorT Functor)
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{
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return std::transform(
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::boost::begin(Input),
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::boost::end(Input),
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Output,
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Functor);
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}
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// Transform a range (in-place)
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template<typename RangeT, typename FunctorT>
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void transform_range(
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const RangeT& Input,
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FunctorT Functor)
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{
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std::transform(
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::boost::begin(Input),
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::boost::end(Input),
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::boost::begin(Input),
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Functor);
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}
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template<typename SequenceT, typename RangeT, typename FunctorT>
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inline SequenceT transform_range_copy(
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const RangeT& Input,
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FunctorT Functor)
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{
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return SequenceT(
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::boost::make_transform_iterator(
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::boost::begin(Input),
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Functor),
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::boost::make_transform_iterator(
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::boost::end(Input),
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Functor));
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}
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} // namespace detail
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} // namespace algorithm
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} // namespace boost
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#endif // BOOST_STRING_CASE_CONV_DETAIL_HPP
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