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//
// C++ Implementation: parsercsv
//
// Description: module to parse Comma-Separated Values (CSV) formatted playlists (rfc4180)
//
//
// Author: Ingo Kossyk <kossyki@cs.tu-berlin.de>, (C) 2004
// Author: Tobias Rafreider trafreider@mixxx.org, (C) 2011
// Author: Daniel Schürmann daschuer@gmx.de, (C) 2011
//
// Copyright: See COPYING file that comes with this distribution
//
//
#include "library/parsercsv.h"
#include <QDir>
#include <QMessageBox>
#include <QTextStream>
#include <QtDebug>
#include "moc_parsercsv.cpp"
ParserCsv::ParserCsv() : Parser() {
}
ParserCsv::~ParserCsv() {
}
QList<QString> ParserCsv::parse(const QString& sFilename) {
QFile file(sFilename);
QString basepath = sFilename.section('/', 0, -2);
clearLocations();
//qDebug() << "ParserCsv: Starting to parse.";
if (file.open(QIODevice::ReadOnly)) {
QByteArray ba = file.readAll();
QList<QList<QString> > tokens = tokenize(ba, ',');
// detect Location column
int loc_coll = 0x7fffffff;
if (tokens.size()) {
for (int i = 0; i < tokens[0].size(); ++i) {
if (tokens[0][i] == tr("Location")) {
loc_coll = i;
break;
}
}
for (int i = 1; i < tokens.size(); ++i) {
if (loc_coll < tokens[i].size()) {
// Todo: check if path is relative
QFileInfo fi(tokens[i][loc_coll]);
if (fi.isRelative()) {
// add base path
qDebug() << "is relative" << basepath << fi.filePath();
fi.setFile(basepath,fi.filePath());
}
m_sLocations.append(fi.filePath());
}
}
}
file.close();
if (m_sLocations.count() != 0) {
return m_sLocations;
} else {
return QList<QString>(); // NULL pointer returned when no locations were found
}
}
file.close();
return QList<QString>(); //if we get here something went wrong
}
// Code was posted at http://www.qtcentre.org/threads/35511-Parsing-CSV-data
// by "adzajac" and adapted to use QT Classes
QList<QList<QString> > ParserCsv::tokenize(const QByteArray& str, char delimiter) {
QList<QList<QString> > tokens;
unsigned int row = 0;
bool quotes = false;
QByteArray field = "";
tokens.append(QList<QString>());
for (int pos = 0; pos < str.length(); ++pos) {
char c = str[pos];
if (!quotes && c == '"') {
quotes = true;
} else if (quotes && c== '"' ) {
if (pos + 1 < str.length() && str[pos+1]== '"') {
field.append(c);
pos++;
} else {
quotes = false;
}
} else if (!quotes && c == delimiter) {
if (isUtf8(field.constData())) {
tokens[row].append(QString::fromUtf8(field));
} else {
tokens[row].append(QString::fromLatin1(field));
}
field.clear();
} else if (!quotes && (c == '\r' || c == '\n')) {
if (isUtf8(field.constData())) {
tokens[row].append(QString::fromUtf8(field));
} else {
tokens[row].append(QString::fromLatin1(field));
}
field.clear();
tokens.append(QList<QString>());
row++;
} else {
field.push_back(c);
}
}
return tokens;
}
bool ParserCsv::writeCSVFile(const QString &file_str, BaseSqlTableModel* pPlaylistTableModel, bool useRelativePath)
{
/*
* Important note:
* On Windows \n will produce a <CR><CL> (=\r\n)
* On Linux and OS X \n is <CR> (which remains \n)
*/
QFile file(file_str);
if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
QMessageBox::warning(nullptr,
tr("Playlist Export Failed"),
tr("Could not create file") + " " + file_str);
return false;
}
//Base folder of file
QString base = file_str.section('/', 0, -2);
QDir base_dir(base);
qDebug() << "Basepath: " << base;
QTextStream out(&file);
// rfc4180: Common usage of CSV is US-ASCII ...
// Using UTF-8 to get around codepage issues
// and it's the default encoding in Ooo Calc
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
DEBUG_ASSERT(out.encoding() == QStringConverter::Utf8);
#else
out.setCodec("UTF-8");
#endif
// writing header section
bool first = true;
int columns = pPlaylistTableModel->columnCount();
for (int i = 0; i < columns; ++i) {
if (pPlaylistTableModel->isColumnInternal(i) ||
(pPlaylistTableModel->fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_PREVIEW) == i)) {
continue;
}
if (!first) {
out << ",";
} else {
first = false;
}
out << "\"";
QString field = pPlaylistTableModel->headerData(i, Qt::Horizontal, Qt::DisplayRole).toString();
out << field.replace('\"', "\"\""); // escape "
out << "\"";
}
out << "\r\n"; // CRLF according to rfc4180
int rows = pPlaylistTableModel->rowCount();
for (int j = 0; j < rows; j++) {
// writing fields section
first = true;
for (int i = 0; i < columns; ++i) {
if (pPlaylistTableModel->isColumnInternal(i) ||
(pPlaylistTableModel->fieldIndex(ColumnCache::COLUMN_LIBRARYTABLE_PREVIEW) == i)) {
continue;
}
if (!first) {
out << ",";
} else {
first = false;
}
out << "\"";
QString field;
if (i ==
pPlaylistTableModel->fieldIndex(
ColumnCache::COLUMN_TRACKLOCATIONSTABLE_LOCATION)) {
field = pPlaylistTableModel
->data(pPlaylistTableModel->index(j, i),
BaseTrackTableModel::kDataExportRole)
.toString();
if (useRelativePath) {
field = base_dir.relativeFilePath(field);
}
} else {
field = pPlaylistTableModel
->data(pPlaylistTableModel->index(j, i),
BaseTrackTableModel::kDataExportRole)
.toString();
}
out << field.replace('\"', "\"\""); // escape "
out << "\"";
}
out << "\r\n"; // CRLF according to rfc4180
}
return true;
}
bool ParserCsv::writeReadableTextFile(const QString &file_str, BaseSqlTableModel* pPlaylistTableModel, bool writeTimestamp)
{
/*
* Important note:
* On Windows \n will produce a <CR><CL> (=\r\n)
* On Linux and OS X \n is <CR> (which remains \n)
*/
QFile file(file_str);
if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
QMessageBox::warning(nullptr,
tr("Readable text Export Failed"),
tr("Could not create file") + " " + file_str);
return false;
}
QTextStream out(&file);
// export each row as "01. 0:00:00 Artist - Title"
int msecsFromStartToMidnight = 0;
int i; // fieldIndex
int rows = pPlaylistTableModel->rowCount();
for (int j = 0; j < rows; j++) {
// writing fields section
i = pPlaylistTableModel->fieldIndex(ColumnCache::COLUMN_PLAYLISTTRACKSTABLE_POSITION);
if (i
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