Sprout/tools/sprig/algorithm/string/find_between.hpp
2015-01-12 02:03:30 +09:00

51 lines
1.9 KiB
C++

/*=============================================================================
Copyright (c) 2011-2015 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
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)
=============================================================================*/
#ifndef TOOLS_SPRIG_ALGORITHM_STRING_FIND_BETWEEN_HPP
#define TOOLS_SPRIG_ALGORITHM_STRING_FIND_BETWEEN_HPP
#include <boost/range/functions.hpp>
#include <boost/range/metafunctions.hpp>
#include <boost/range/iterator_range.hpp>
#include <boost/algorithm/string/find.hpp>
namespace sprig {
//
// between_finder
//
template<typename Finder1, typename Finder2>
struct between_finderF {
private:
Finder1 finder1_;
Finder2 finder2_;
public:
between_finderF(Finder1 const& finder1, Finder2 const& finder2)
: finder1_(finder1), finder2_(finder2)
{}
template<typename ForwardIterator>
boost::iterator_range<ForwardIterator>
operator()(ForwardIterator first, ForwardIterator last) const {
first = boost::end(finder1_(first, last));
return boost::iterator_range<ForwardIterator>(first, boost::begin(finder2_(first, last)));
}
};
template<typename Finder1, typename Finder2>
inline sprig::between_finderF<Finder1, Finder2>
between_finder(Finder1 const& finder1, Finder2 const& finder2) {
return sprig::between_finderF<Finder1, Finder2>(finder1, finder2);
}
//
// find_between
//
template<typename Range, typename Finder1, typename Finder2>
inline boost::iterator_range<typename boost::range_iterator<Range>::type>
find_between(Range& input, Finder1 const& finder1, Finder2 const& finder2) {
return boost::algorithm::find(input, sprig::between_finder(finder1, finder2));
}
} // namespace sprig
#endif // #ifndef TOOLS_SPRIG_ALGORITHM_STRING_FIND_BETWEEN_HPP