source: NonGTP/Boost/boost/archive/iterators/escape.hpp @ 857

Revision 857, 2.9 KB checked in by igarcia, 19 years ago (diff)
RevLine 
[857]1#ifndef BOOST_ARCHIVE_ITERATORS_ESCAPE_HPP
2#define BOOST_ARCHIVE_ITERATORS_ESCAPE_HPP
3
4// MS compatible compilers support #pragma once
5#if defined(_MSC_VER) && (_MSC_VER >= 1020)
6# pragma once
7#endif
8
9/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
10// escape.hpp
11
12// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
13// Use, modification and distribution is subject to the Boost Software
14// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
15// http://www.boost.org/LICENSE_1_0.txt)
16
17//  See http://www.boost.org for updates, documentation, and revision history.
18
19#include <cassert>
20
21#include <boost/config.hpp> // for BOOST_DEDUCED_TYPENAME
22#include <boost/iterator/iterator_adaptor.hpp>
23#include <boost/iterator/iterator_traits.hpp>
24
25namespace boost {
26namespace archive {
27namespace iterators {
28
29/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
30// insert escapes into text
31
32template<class Derived, class Base>
33class escape :
34    public boost::iterator_adaptor<
35        Derived,
36        Base,
37        BOOST_DEDUCED_TYPENAME boost::iterator_value<Base>::type,
38        single_pass_traversal_tag,
39        BOOST_DEDUCED_TYPENAME boost::iterator_value<Base>::type
40    >{
41    typedef BOOST_DEDUCED_TYPENAME boost::iterator_value<Base>::type base_value_type;
42    typedef BOOST_DEDUCED_TYPENAME boost::iterator_reference<Base>::type reference_type;
43    friend class boost::iterator_core_access;
44
45    typedef BOOST_DEDUCED_TYPENAME boost::iterator_adaptor<
46        Derived,
47        Base,
48        base_value_type,
49        single_pass_traversal_tag,
50        base_value_type
51    > super_t;
52
53    typedef escape<Derived, Base> this_t;
54
55    bool equal(const this_t & rhs) const {
56        return
57            NULL == m_bnext
58            && NULL == m_bend
59            && this->base_reference() == rhs.base_reference()
60        ;
61    }
62
63    //Access the value referred to
64    reference_type dereference() const {
65        return m_current_value;
66    }
67
68   void increment(){
69        if(++m_bnext < m_bend){
70            m_current_value = *m_bnext;
71            return;
72        }
73        ++(this->base_reference());
74        m_bnext = NULL;
75        m_bend = NULL;
76        m_current_value = (static_cast<Derived *>(this))->fill(m_bnext, m_bend);
77    }
78
79    // buffer to handle pending characters
80    const base_value_type *m_bnext;
81    const base_value_type *m_bend;
82    BOOST_DEDUCED_TYPENAME boost::iterator_value<Base>::type m_current_value;
83    bool m_full;
84public:
85    escape(Base base) :
86        super_t(base),
87        m_bnext(NULL),
88        m_bend(NULL)
89    {
90        m_current_value = static_cast<Derived *>(this)->fill(m_bnext, m_bend);
91    }
92};
93
94} // namespace iterators
95} // namespace archive
96} // namespace boost
97
98#endif // BOOST_ARCHIVE_ITERATORS_ESCAPE_HPP
Note: See TracBrowser for help on using the repository browser.