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115 lines
3.1 KiB
115 lines
3.1 KiB
#ifndef BOOST_ARCHIVE_ITERATORS_ESCAPE_HPP |
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#define BOOST_ARCHIVE_ITERATORS_ESCAPE_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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// escape.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 <cstddef> // NULL |
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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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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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// insert escapes into text |
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template<class Derived, class Base> |
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class escape : |
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public boost::iterator_adaptor< |
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Derived, |
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Base, |
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BOOST_DEDUCED_TYPENAME boost::iterator_value<Base>::type, |
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single_pass_traversal_tag, |
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BOOST_DEDUCED_TYPENAME boost::iterator_value<Base>::type |
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> |
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{ |
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typedef BOOST_DEDUCED_TYPENAME boost::iterator_value<Base>::type base_value_type; |
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typedef BOOST_DEDUCED_TYPENAME boost::iterator_reference<Base>::type reference_type; |
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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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Derived, |
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Base, |
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base_value_type, |
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single_pass_traversal_tag, |
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base_value_type |
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> super_t; |
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typedef escape<Derived, Base> this_t; |
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void dereference_impl() { |
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m_current_value = static_cast<Derived *>(this)->fill(m_bnext, m_bend); |
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m_full = true; |
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} |
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//Access the value referred to |
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reference_type dereference() const { |
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if(!m_full) |
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const_cast<this_t *>(this)->dereference_impl(); |
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return m_current_value; |
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} |
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bool equal(const this_t & rhs) const { |
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if(m_full){ |
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if(! rhs.m_full) |
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const_cast<this_t *>(& rhs)->dereference_impl(); |
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} |
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else{ |
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if(rhs.m_full) |
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const_cast<this_t *>(this)->dereference_impl(); |
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} |
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if(m_bnext != rhs.m_bnext) |
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return false; |
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if(this->base_reference() != rhs.base_reference()) |
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return false; |
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return true; |
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} |
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void increment(){ |
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if(++m_bnext < m_bend){ |
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m_current_value = *m_bnext; |
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return; |
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} |
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++(this->base_reference()); |
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m_bnext = NULL; |
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m_bend = NULL; |
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m_full = false; |
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} |
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// buffer to handle pending characters |
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const base_value_type *m_bnext; |
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const base_value_type *m_bend; |
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bool m_full; |
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base_value_type m_current_value; |
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public: |
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escape(Base base) : |
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super_t(base), |
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m_bnext(NULL), |
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m_bend(NULL), |
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m_full(false) |
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{ |
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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_ESCAPE_HPP
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