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70 lines
2.7 KiB
C++
70 lines
2.7 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2020 Jon Beniston, M7RCE //
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// //
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// This program 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 as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program 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 V3 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 this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include "csv.h"
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#include <QString>
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#include <QFile>
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#include <QByteArray>
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#include <QHash>
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#include <QList>
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#include <QDebug>
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// Create a hash map from a CSV file with two columns
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QHash<QString, QString> *csvHash(const QString& filename, int reserve)
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{
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int cnt = 0;
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QHash<QString, QString> *map = nullptr;
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qDebug() << "csvHash: " << filename;
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QFile file(filename);
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if (file.open(QIODevice::ReadOnly))
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{
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// Read header
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if (!file.atEnd())
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{
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QByteArray row = file.readLine().trimmed();
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if (row.split(',').size() == 2)
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{
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map = new QHash<QString, QString>();
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if (reserve > 0)
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map->reserve(reserve);
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// Read data
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while (!file.atEnd())
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{
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row = file.readLine().trimmed();
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QList<QByteArray> cols = row.split(',');
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map->insert(QString(cols[0]), QString(cols[1]));
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cnt++;
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}
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}
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else
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qDebug() << "csvHash: Unexpected header";
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}
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else
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qDebug() << "csvHash: Empty file";
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file.close();
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}
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else
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qDebug() << "csvHash: Failed to open " << filename;
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qDebug() << "csvHash: " << filename << ": read " << cnt << " entries";
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return map;
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}
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