mpd/src/song/AndSongFilter.cxx
2023-03-06 14:59:48 +01:00

45 lines
842 B
C++

// SPDX-License-Identifier: GPL-2.0-or-later
// Copyright The Music Player Daemon Project
#include "AndSongFilter.hxx"
#include <algorithm>
ISongFilterPtr
AndSongFilter::Clone() const noexcept
{
auto result = std::make_unique<AndSongFilter>();
for (const auto &i : items)
result->items.emplace_back(i->Clone());
return result;
}
std::string
AndSongFilter::ToExpression() const noexcept
{
auto i = items.begin();
const auto end = items.end();
if (std::next(i) == end)
return (*i)->ToExpression();
std::string e("(");
e += (*i)->ToExpression();
for (++i; i != end; ++i) {
e += " AND ";
e += (*i)->ToExpression();
}
e.push_back(')');
return e;
}
bool
AndSongFilter::Match(const LightSong &song) const noexcept
{
return std::all_of(items.begin(), items.end(), [&song](const auto &i) { return i->Match(song); });
}