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/***************************************************************************
* Copyright (C) 2008-2014 by Andrzej Rybczak *
* electricityispower@gmail.com *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#ifndef NCMPCPP_REGEX_FILTER_H
#define NCMPCPP_REGEX_FILTER_H
#include <boost/regex.hpp>
#include <cassert>
template <typename T>
struct RegexFilter
{
typedef NC::Menu<T> MenuT;
typedef typename NC::Menu<T>::Item Item;
typedef std::function<bool(const boost::regex &, const T &)> FilterFunction;
RegexFilter() { }
RegexFilter(boost::regex rx, FilterFunction filter)
: m_rx(std::move(rx)), m_filter(std::move(filter)) { }
void clear()
{
m_filter = nullptr;
}
bool operator()(const Item &item) const {
assert(defined());
return m_filter(m_rx, item.value());
}
bool defined() const
{
return m_filter.operator bool();
}
private:
boost::regex m_rx;
FilterFunction m_filter;
};
template <typename T> struct RegexItemFilter
{
typedef NC::Menu<T> MenuT;
typedef typename NC::Menu<T>::Item Item;
typedef std::function<bool(const boost::regex &, const Item &)> FilterFunction;
RegexItemFilter() { }
RegexItemFilter(boost::regex rx, FilterFunction filter)
: m_rx(std::move(rx)), m_filter(std::move(filter)) { }
void clear()
{
m_filter = nullptr;
}
bool operator()(const Item &item) {
return m_filter(m_rx, item);
}
bool defined() const
{
return m_filter.operator bool();
}
private:
boost::regex m_rx;
FilterFunction m_filter;
};
#endif // NCMPCPP_REGEX_FILTER_H
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