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/***************************************************************************
* Copyright (C) 2008-2012 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 _REGEX_FILTER
#define _REGEX_FILTER
#include "menu.h"
template <typename T> struct RegexFilter
{
typedef NCurses::Menu<T> MenuT;
typedef typename NCurses::Menu<T>::Item MenuItem;
typedef std::function<bool(const Regex &, MenuT &menu, const MenuItem &)> FilterFunction;
RegexFilter(const std::string ®ex_, int cflags, FilterFunction custom_filter = 0)
: m_rx(regex_, cflags), m_custom_filter(custom_filter) { }
bool operator()(MenuT &menu, const MenuItem &item) {
if (m_rx.regex().empty())
return true;
if (!m_rx.error().empty())
return false;
if (m_custom_filter)
return m_custom_filter(m_rx, menu, item);
return m_rx.match(menu.Stringify(item));
}
static std::string currentFilter(NCurses::Menu<T> &menu)
{
std::string filter;
auto rf = menu.getFilter().template target< RegexFilter<T> >();
if (rf)
filter = rf->m_rx.regex();
return filter;
}
private:
Regex m_rx;
FilterFunction m_custom_filter;
};
#endif
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