177 lines
4.8 KiB
C++
177 lines
4.8 KiB
C++
#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
|