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// Boost string_algo library find_iterator.hpp header file ---------------------------//
// Copyright Pavol Droba 2002-2003.
//
// Distributed under 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.
#ifndef BOOST_STRING_FIND_ITERATOR_DETAIL_HPP
#define BOOST_STRING_FIND_ITERATOR_DETAIL_HPP
#include <boost/algorithm/string/config.hpp>
#include <boost/range/iterator_range_core.hpp>
#include <boost/iterator/iterator_facade.hpp>
#include <boost/iterator/iterator_categories.hpp>
#include <boost/function.hpp>
namespace boost {
namespace algorithm {
namespace detail {
// find_iterator base -----------------------------------------------//
// Find iterator base
template<typename IteratorT>
class find_iterator_base
{
protected:
// typedefs
typedef IteratorT input_iterator_type;
typedef iterator_range<IteratorT> match_type;
typedef function2<
match_type,
input_iterator_type,
input_iterator_type> finder_type;
protected:
// Protected construction/destruction
// Default constructor
find_iterator_base() {};
// Copy construction
find_iterator_base( const find_iterator_base& Other ) :
m_Finder(Other.m_Finder) {}
// Constructor
template<typename FinderT>
find_iterator_base( FinderT Finder, int ) :
m_Finder(Finder) {}
// Destructor
~find_iterator_base() {}
// Find operation
match_type do_find(
input_iterator_type Begin,
input_iterator_type End ) const
{
if (!m_Finder.empty())
{
return m_Finder(Begin,End);
}
else
{
return match_type(End,End);
}
}
// Check
bool is_null() const
{
return m_Finder.empty();
}
private:
// Finder
finder_type m_Finder;
};
} // namespace detail
} // namespace algorithm
} // namespace boost
#endif // BOOST_STRING_FIND_ITERATOR_DETAIL_HPP
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