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#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/iterator/iterator_traits.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 boost::iterator_value<Base>::type
//BOOST_DEDUCED_TYPENAME Base::value_type
>,
Base
>
{
friend class boost::iterator_core_access;
typedef filter_iterator<
remove_whitespace_predicate<
BOOST_DEDUCED_TYPENAME boost::iterator_value<Base>::type
//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
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