#ifndef BOOST_ARCHIVE_ITERATORS_ESCAPE_HPP | |
#define BOOST_ARCHIVE_ITERATORS_ESCAPE_HPP | |
// MS compatible compilers support #pragma once | |
#if defined(_MSC_VER) && (_MSC_VER >= 1020) | |
# pragma once | |
#endif | |
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 | |
// escape.hpp | |
// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . | |
// Use, modification and distribution is subject to 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. | |
#include <boost/assert.hpp> | |
#include <cstddef> // NULL | |
#include <boost/config.hpp> // for BOOST_DEDUCED_TYPENAME | |
#include <boost/iterator/iterator_adaptor.hpp> | |
#include <boost/iterator/iterator_traits.hpp> | |
namespace boost { | |
namespace archive { | |
namespace iterators { | |
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 | |
// insert escapes into text | |
template<class Derived, class Base> | |
class escape : | |
public boost::iterator_adaptor< | |
Derived, | |
Base, | |
BOOST_DEDUCED_TYPENAME boost::iterator_value<Base>::type, | |
single_pass_traversal_tag, | |
BOOST_DEDUCED_TYPENAME boost::iterator_value<Base>::type | |
> | |
{ | |
typedef BOOST_DEDUCED_TYPENAME boost::iterator_value<Base>::type base_value_type; | |
typedef BOOST_DEDUCED_TYPENAME boost::iterator_reference<Base>::type reference_type; | |
friend class boost::iterator_core_access; | |
typedef BOOST_DEDUCED_TYPENAME boost::iterator_adaptor< | |
Derived, | |
Base, | |
base_value_type, | |
single_pass_traversal_tag, | |
base_value_type | |
> super_t; | |
typedef escape<Derived, Base> this_t; | |
void dereference_impl() { | |
m_current_value = static_cast<Derived *>(this)->fill(m_bnext, m_bend); | |
m_full = true; | |
} | |
//Access the value referred to | |
reference_type dereference() const { | |
if(!m_full) | |
const_cast<this_t *>(this)->dereference_impl(); | |
return m_current_value; | |
} | |
bool equal(const this_t & rhs) const { | |
if(m_full){ | |
if(! rhs.m_full) | |
const_cast<this_t *>(& rhs)->dereference_impl(); | |
} | |
else{ | |
if(rhs.m_full) | |
const_cast<this_t *>(this)->dereference_impl(); | |
} | |
if(m_bnext != rhs.m_bnext) | |
return false; | |
if(this->base_reference() != rhs.base_reference()) | |
return false; | |
return true; | |
} | |
void increment(){ | |
if(++m_bnext < m_bend){ | |
m_current_value = *m_bnext; | |
return; | |
} | |
++(this->base_reference()); | |
m_bnext = NULL; | |
m_bend = NULL; | |
m_full = false; | |
} | |
// buffer to handle pending characters | |
const base_value_type *m_bnext; | |
const base_value_type *m_bend; | |
bool m_full; | |
base_value_type m_current_value; | |
public: | |
escape(Base base) : | |
super_t(base), | |
m_bnext(NULL), | |
m_bend(NULL), | |
m_full(false) | |
{ | |
} | |
}; | |
} // namespace iterators | |
} // namespace archive | |
} // namespace boost | |
#endif // BOOST_ARCHIVE_ITERATORS_ESCAPE_HPP |