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91 lines
2.5 KiB
91 lines
2.5 KiB
#ifndef BOOST_ARCHIVE_ITERATORS_UNESCAPE_HPP |
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#define BOOST_ARCHIVE_ITERATORS_UNESCAPE_HPP |
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// MS compatible compilers support #pragma once |
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#if defined(_MSC_VER) && (_MSC_VER >= 1020) |
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# pragma once |
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#endif |
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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 |
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// unescape.hpp |
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// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . |
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// Use, modification and distribution is subject to the Boost Software |
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// License, Version 1.0. (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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#include <boost/assert.hpp> |
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#include <boost/config.hpp> // for BOOST_DEDUCED_TYPENAME |
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#include <boost/iterator/iterator_adaptor.hpp> |
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//#include <boost/iterator/iterator_traits.hpp> |
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#include <boost/pointee.hpp> |
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namespace boost { |
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namespace archive { |
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namespace iterators { |
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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 |
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// class used by text archives to translate char strings to wchar_t |
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// strings of the currently selected locale |
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template<class Derived, class Base> |
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class unescape |
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: public boost::iterator_adaptor< |
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unescape<Derived, Base>, |
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Base, |
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BOOST_DEDUCED_TYPENAME pointee<Base>::type, |
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single_pass_traversal_tag, |
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BOOST_DEDUCED_TYPENAME pointee<Base>::type |
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> |
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{ |
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friend class boost::iterator_core_access; |
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typedef BOOST_DEDUCED_TYPENAME boost::iterator_adaptor< |
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unescape<Derived, Base>, |
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Base, |
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BOOST_DEDUCED_TYPENAME pointee<Base>::type, |
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single_pass_traversal_tag, |
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BOOST_DEDUCED_TYPENAME pointee<Base>::type |
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> super_t; |
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typedef unescape<Derived, Base> this_t; |
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public: |
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typedef BOOST_DEDUCED_TYPENAME this_t::value_type value_type; |
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typedef BOOST_DEDUCED_TYPENAME this_t::reference reference; |
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private: |
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value_type dereference_impl() { |
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if(! m_full){ |
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m_current_value = static_cast<Derived *>(this)->drain(); |
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m_full = true; |
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} |
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return m_current_value; |
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} |
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reference dereference() const { |
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return const_cast<this_t *>(this)->dereference_impl(); |
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} |
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value_type m_current_value; |
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bool m_full; |
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void increment(){ |
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++(this->base_reference()); |
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dereference_impl(); |
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m_full = false; |
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}; |
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public: |
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unescape(Base base) : |
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super_t(base), |
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m_full(false) |
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{} |
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}; |
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} // namespace iterators |
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} // namespace archive |
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} // namespace boost |
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#endif // BOOST_ARCHIVE_ITERATORS_UNESCAPE_HPP
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