97425d56e7
[[maybe_unused]] (introduced in C++17) is standard C++. https://clang.llvm.org/docs/AttributeReference.html#maybe-unused-unused says that this is equivalent to the GNU unused attribute. Signed-off-by: Rosen Penev <rosenp@gmail.com>
92 lines
2.1 KiB
C++
92 lines
2.1 KiB
C++
/*
|
|
* Copyright 2003-2020 The Music Player Daemon Project
|
|
* http://www.musicpd.org
|
|
*
|
|
* 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#include "Handler.hxx"
|
|
#include "Builder.hxx"
|
|
#include "pcm/AudioFormat.hxx"
|
|
#include "util/CharUtil.hxx"
|
|
#include "util/StringView.hxx"
|
|
|
|
#include <algorithm>
|
|
|
|
void
|
|
NullTagHandler::OnTag(TagType, StringView) noexcept
|
|
{
|
|
}
|
|
|
|
void
|
|
NullTagHandler::OnPair(StringView, StringView) noexcept
|
|
{
|
|
}
|
|
|
|
void
|
|
NullTagHandler::OnPicture(const char *, ConstBuffer<void>) noexcept
|
|
{
|
|
}
|
|
|
|
void
|
|
NullTagHandler::OnAudioFormat([[maybe_unused]] AudioFormat af) noexcept
|
|
{
|
|
}
|
|
|
|
void
|
|
AddTagHandler::OnDuration(SongTime duration) noexcept
|
|
{
|
|
tag.SetDuration(duration);
|
|
}
|
|
|
|
/**
|
|
* Skip leading zeroes and a non-decimal suffix.
|
|
*/
|
|
static StringView
|
|
NormalizeDecimal(StringView s)
|
|
{
|
|
auto start = std::find_if(s.begin(), s.end(),
|
|
[](char ch){ return ch != '0'; });
|
|
auto end = std::find_if(start, s.end(),
|
|
[](char ch){ return !IsDigitASCII(ch); });
|
|
return {start, end};
|
|
}
|
|
|
|
void
|
|
AddTagHandler::OnTag(TagType type, StringView value) noexcept
|
|
{
|
|
if (type == TAG_TRACK || type == TAG_DISC) {
|
|
/* filter out this extra data and leading zeroes */
|
|
|
|
value = NormalizeDecimal(value);
|
|
}
|
|
|
|
tag.AddItem(type, value);
|
|
}
|
|
|
|
void
|
|
FullTagHandler::OnPair(StringView name, StringView) noexcept
|
|
{
|
|
if (name.EqualsIgnoreCase("cuesheet"))
|
|
tag.SetHasPlaylist(true);
|
|
}
|
|
|
|
void
|
|
FullTagHandler::OnAudioFormat(AudioFormat af) noexcept
|
|
{
|
|
if (audio_format != nullptr)
|
|
*audio_format = af;
|
|
}
|