110 lines
3.2 KiB
C++
110 lines
3.2 KiB
C++
/*
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* Strawberry Music Player
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* This file was part of Clementine.
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* Copyright 2010, David Sansome <me@davidsansome.com>
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*
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* Strawberry is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Strawberry is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include <QtGlobal>
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#include <QObject>
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#include <QIODevice>
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#include <QDir>
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#include <QMap>
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#include <QByteArray>
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#include <QString>
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#include <QRegularExpression>
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#include <QTextStream>
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#include "core/shared_ptr.h"
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#include "utilities/timeconstants.h"
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#include "settings/playlistsettingspage.h"
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#include "parserbase.h"
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#include "plsparser.h"
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class CollectionBackendInterface;
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#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
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constexpr auto qt_endl = Qt::endl;
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#else
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constexpr auto qt_endl = endl;
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#endif
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PLSParser::PLSParser(SharedPtr<CollectionBackendInterface> collection_backend, QObject *parent)
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: ParserBase(collection_backend, parent) {}
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SongList PLSParser::Load(QIODevice *device, const QString &playlist_path, const QDir &dir, const bool collection_search) const {
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Q_UNUSED(playlist_path);
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QMap<int, Song> songs;
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QRegularExpression n_re("\\d+$");
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while (!device->atEnd()) {
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QString line = QString::fromUtf8(device->readLine()).trimmed();
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qint64 equals = line.indexOf('=');
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QString key = line.left(equals).toLower();
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QString value = line.mid(equals + 1);
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QRegularExpressionMatch re_match = n_re.match(key);
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int n = re_match.captured(0).toInt();
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if (key.startsWith("file")) {
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Song song = LoadSong(value, 0, 0, dir, collection_search);
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// Use the title and length we've already loaded if any
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if (!songs[n].title().isEmpty()) song.set_title(songs[n].title());
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if (songs[n].length_nanosec() != -1) {
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song.set_length_nanosec(songs[n].length_nanosec());
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}
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songs[n] = song;
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}
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else if (key.startsWith("title")) {
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songs[n].set_title(value);
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}
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else if (key.startsWith("length")) {
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qint64 seconds = value.toLongLong();
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if (seconds > 0) {
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songs[n].set_length_nanosec(seconds * kNsecPerSec);
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}
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}
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}
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return songs.values();
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}
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void PLSParser::Save(const SongList &songs, QIODevice *device, const QDir &dir, const PlaylistSettingsPage::PathType path_type) const {
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QTextStream s(device);
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s << "[playlist]" << qt_endl;
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s << "Version=2" << qt_endl;
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s << "NumberOfEntries=" << songs.count() << qt_endl;
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int n = 1;
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for (const Song &song : songs) {
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s << "File" << n << "=" << URLOrFilename(song.url(), dir, path_type) << qt_endl;
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s << "Title" << n << "=" << song.title() << qt_endl;
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s << "Length" << n << "=" << song.length_nanosec() / kNsecPerSec << qt_endl;
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++n;
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}
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}
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bool PLSParser::TryMagic(const QByteArray &data) const {
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return data.toLower().contains("[playlist]");
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}
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