#ifndef BOOST_ARCHIVE_ITERATORS_REMOVE_WHITESPACE_HPP | |
#define BOOST_ARCHIVE_ITERATORS_REMOVE_WHITESPACE_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 | |
// remove_whitespace.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 <boost/config.hpp> // for BOOST_DEDUCED_TYPENAME | |
#include <boost/serialization/pfto.hpp> | |
#include <boost/iterator/iterator_adaptor.hpp> | |
#include <boost/iterator/filter_iterator.hpp> | |
//#include <boost/detail/workaround.hpp> | |
//#if ! BOOST_WORKAROUND(BOOST_MSVC, <=1300) | |
// here is the default standard implementation of the functor used | |
// by the filter iterator to remove spaces. Unfortunately usage | |
// of this implementation in combination with spirit trips a bug | |
// VC 6.5. The only way I can find to work around it is to | |
// implement a special non-standard version for this platform | |
#ifndef BOOST_NO_CWCTYPE | |
#include <cwctype> // iswspace | |
#if defined(BOOST_NO_STDC_NAMESPACE) | |
namespace std{ using ::iswspace; } | |
#endif | |
#endif | |
#include <cctype> // isspace | |
#if defined(BOOST_NO_STDC_NAMESPACE) | |
namespace std{ using ::isspace; } | |
#endif | |
#if defined(__STD_RWCOMPILER_H__) || defined(_RWSTD_VER) | |
// this is required for the RW STL on Linux and Tru64. | |
#undef isspace | |
#undef iswspace | |
#endif | |
//#endif // BOOST_WORKAROUND | |
namespace { // anonymous | |
template<class CharType> | |
struct remove_whitespace_predicate; | |
template<> | |
struct remove_whitespace_predicate<char> | |
{ | |
bool operator()(unsigned char t){ | |
return ! std::isspace(t); | |
} | |
}; | |
#ifndef BOOST_NO_CWCHAR | |
template<> | |
struct remove_whitespace_predicate<wchar_t> | |
{ | |
bool operator()(wchar_t t){ | |
return ! std::iswspace(t); | |
} | |
}; | |
#endif | |
} // namespace anonymous | |
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 | |
// convert base64 file data (including whitespace and padding) to binary | |
namespace boost { | |
namespace archive { | |
namespace iterators { | |
// custom version of filter iterator which doesn't look ahead further than | |
// necessary | |
template<class Predicate, class Base> | |
class filter_iterator | |
: public boost::iterator_adaptor< | |
filter_iterator<Predicate, Base>, | |
Base, | |
use_default, | |
single_pass_traversal_tag | |
> | |
{ | |
friend class boost::iterator_core_access; | |
typedef BOOST_DEDUCED_TYPENAME boost::iterator_adaptor< | |
filter_iterator<Predicate, Base>, | |
Base, | |
use_default, | |
single_pass_traversal_tag | |
> super_t; | |
typedef filter_iterator<Predicate, Base> this_t; | |
typedef BOOST_DEDUCED_TYPENAME super_t::reference reference_type; | |
reference_type dereference_impl(){ | |
if(! m_full){ | |
while(! m_predicate(* this->base_reference())) | |
++(this->base_reference()); | |
m_full = true; | |
} | |
return * this->base_reference(); | |
} | |
reference_type dereference() const { | |
return const_cast<this_t *>(this)->dereference_impl(); | |
} | |
Predicate m_predicate; | |
bool m_full; | |
public: | |
// note: this function is public only because comeau compiler complained | |
// I don't know if this is because the compiler is wrong or what | |
void increment(){ | |
m_full = false; | |
++(this->base_reference()); | |
} | |
filter_iterator(Base start) : | |
super_t(start), | |
m_full(false) | |
{} | |
filter_iterator(){} | |
}; | |
template<class Base> | |
class remove_whitespace : | |
public filter_iterator< | |
remove_whitespace_predicate<BOOST_DEDUCED_TYPENAME Base::value_type>, | |
Base | |
> | |
{ | |
friend class boost::iterator_core_access; | |
typedef filter_iterator< | |
remove_whitespace_predicate<BOOST_DEDUCED_TYPENAME Base::value_type>, | |
Base | |
> super_t; | |
public: | |
// remove_whitespace(){} // why is this needed? | |
// make composible buy using templated constructor | |
template<class T> | |
remove_whitespace(BOOST_PFTO_WRAPPER(T) start) : | |
super_t(Base(BOOST_MAKE_PFTO_WRAPPER(static_cast< T >(start)))) | |
{} | |
// intel 7.1 doesn't like default copy constructor | |
remove_whitespace(const remove_whitespace & rhs) : | |
super_t(rhs.base_reference()) | |
{} | |
}; | |
} // namespace iterators | |
} // namespace archive | |
} // namespace boost | |
#endif // BOOST_ARCHIVE_ITERATORS_REMOVE_WHITESPACE_HPP |