50b51d2b50
Its methods act on their parameters without changing the converter, so can all be const. Its instances thus have no non-const members to exercise, so can always be const. Task-number: QTBUG-111228 Change-Id: Ifcdb2f2159c2cfcd7998dd118aa327a32d299ccf Reviewed-by: Dennis Oberst <dennis.oberst@qt.io> Reviewed-by: Marc Mutz <marc.mutz@qt.io> (cherry picked from commit 77fdd21cbf1a053efe6eec51356c665ed982d47c) Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
111 lines
2.4 KiB
C++
111 lines
2.4 KiB
C++
// Copyright (C) 2018 Intel Corporation.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#include "textconverter.h"
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#include <QFile>
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#include <QTextStream>
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using namespace Qt::StringLiterals;
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static void dumpVariant(QTextStream &out, const QVariant &v)
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{
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switch (v.userType()) {
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case QMetaType::QVariantList: {
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const QVariantList list = v.toList();
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for (const QVariant &item : list)
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dumpVariant(out, item);
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break;
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}
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case QMetaType::QString: {
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const QStringList list = v.toStringList();
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for (const QString &s : list)
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out << s << Qt::endl;
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break;
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}
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case QMetaType::QVariantMap: {
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const QVariantMap map = v.toMap();
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for (auto it = map.begin(); it != map.end(); ++it) {
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out << it.key() << " => ";
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dumpVariant(out, it.value());
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}
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break;
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}
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case QMetaType::Nullptr:
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out << "(null)" << Qt::endl;
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break;
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default:
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out << v.toString() << Qt::endl;
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break;
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}
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}
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QString TextConverter::name() const
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{
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return "text"_L1;
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}
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Converter::Direction TextConverter::directions() const
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{
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return InOut;
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}
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Converter::Options TextConverter::outputOptions() const
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{
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return {};
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}
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const char *TextConverter::optionsHelp() const
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{
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return nullptr;
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}
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bool TextConverter::probeFile(QIODevice *f) const
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{
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if (QFile *file = qobject_cast<QFile *>(f))
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return file->fileName().endsWith(".txt"_L1);
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return false;
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}
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QVariant TextConverter::loadFile(QIODevice *f, const Converter *&outputConverter) const
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{
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if (!outputConverter)
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outputConverter = this;
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QVariantList list;
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QTextStream in(f);
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QString line;
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while (!in.atEnd()) {
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in.readLineInto(&line);
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bool ok;
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if (qint64 v = line.toLongLong(&ok); ok)
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list.append(v);
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else if (double d = line.toDouble(&ok); ok)
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list.append(d);
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else
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list.append(line);
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}
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return list;
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}
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void TextConverter::saveFile(QIODevice *f, const QVariant &contents,
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const QStringList &options) const
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{
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if (!options.isEmpty()) {
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fprintf(stderr, "Unknown option '%s' to text output. This format has no options.\n",
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qPrintable(options.first()));
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exit(EXIT_FAILURE);
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}
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QTextStream out(f);
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dumpVariant(out, contents);
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}
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static TextConverter textConverter;
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