diff options
Diffstat (limited to 'examples/corelib/serialization/convert/xmlconverter.cpp')
| -rw-r--r-- | examples/corelib/serialization/convert/xmlconverter.cpp | 214 |
1 files changed, 76 insertions, 138 deletions
diff --git a/examples/corelib/serialization/convert/xmlconverter.cpp b/examples/corelib/serialization/convert/xmlconverter.cpp index c2811c5745..ef71fecb9f 100644 --- a/examples/corelib/serialization/convert/xmlconverter.cpp +++ b/examples/corelib/serialization/convert/xmlconverter.cpp @@ -1,54 +1,8 @@ -/**************************************************************************** -** -** Copyright (C) 2018 Intel Corporation. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2018 Intel Corporation. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause #include "xmlconverter.h" +#include "variantorderedmap.h" #include <QBitArray> #include <QtCborCommon> @@ -60,8 +14,9 @@ #include <QXmlStreamReader> #include <QXmlStreamWriter> -static const char optionHelp[] = - "compact=no|yes Use compact XML form.\n"; +using namespace Qt::StringLiterals; + +static const char xmlOptionHelp[] = "compact=no|yes Use compact XML form.\n"; static XmlConverter xmlConverter; @@ -70,7 +25,7 @@ static QVariant variantFromXml(QXmlStreamReader &xml, Converter::Options options static QVariantList listFromXml(QXmlStreamReader &xml, Converter::Options options) { QVariantList list; - while (!xml.atEnd() && !(xml.isEndElement() && xml.name() == QLatin1String("list"))) { + while (!xml.atEnd() && !(xml.isEndElement() && xml.name() == "list"_L1)) { xml.readNext(); switch (xml.tokenType()) { case QXmlStreamReader::StartElement: @@ -94,20 +49,19 @@ static QVariantList listFromXml(QXmlStreamReader &xml, Converter::Options option break; } - fprintf(stderr, "%lld:%lld: Invalid XML %s '%s'.\n", - xml.lineNumber(), xml.columnNumber(), - qPrintable(xml.tokenString()), qPrintable(xml.name().toString())); - exit(EXIT_FAILURE); + qFatal("%lld:%lld: Invalid XML %s '%s'.", xml.lineNumber(), xml.columnNumber(), + qPrintable(xml.tokenString()), qPrintable(xml.name().toString())); } xml.readNext(); return list; } -static VariantOrderedMap::value_type mapEntryFromXml(QXmlStreamReader &xml, Converter::Options options) +static VariantOrderedMap::value_type mapEntryFromXml(QXmlStreamReader &xml, + Converter::Options options) { QVariant key, value; - while (!xml.atEnd() && !(xml.isEndElement() && xml.name() == QLatin1String("entry"))) { + while (!xml.atEnd() && !(xml.isEndElement() && xml.name() == "entry"_L1)) { xml.readNext(); switch (xml.tokenType()) { case QXmlStreamReader::StartElement: @@ -136,10 +90,8 @@ static VariantOrderedMap::value_type mapEntryFromXml(QXmlStreamReader &xml, Conv break; } - fprintf(stderr, "%lld:%lld: Invalid XML %s '%s'.\n", - xml.lineNumber(), xml.columnNumber(), - qPrintable(xml.tokenString()), qPrintable(xml.name().toString())); - exit(EXIT_FAILURE); + qFatal("%lld:%lld: Invalid XML %s '%s'.", xml.lineNumber(), xml.columnNumber(), + qPrintable(xml.tokenString()), qPrintable(xml.name().toString())); } return { key, value }; @@ -150,11 +102,11 @@ static QVariant mapFromXml(QXmlStreamReader &xml, Converter::Options options) QVariantMap map1; VariantOrderedMap map2; - while (!xml.atEnd() && !(xml.isEndElement() && xml.name() == QLatin1String("map"))) { + while (!xml.atEnd() && !(xml.isEndElement() && xml.name() == "map"_L1)) { xml.readNext(); switch (xml.tokenType()) { case QXmlStreamReader::StartElement: - if (xml.name() == QLatin1String("entry")) { + if (xml.name() == "entry"_L1) { auto pair = mapEntryFromXml(xml, options); if (options & Converter::SupportsArbitraryMapKeys) map2.append(pair); @@ -181,10 +133,8 @@ static QVariant mapFromXml(QXmlStreamReader &xml, Converter::Options options) break; } - fprintf(stderr, "%lld:%lld: Invalid XML %s '%s'.\n", - xml.lineNumber(), xml.columnNumber(), - qPrintable(xml.tokenString()), qPrintable(xml.name().toString())); - exit(EXIT_FAILURE); + qFatal("%lld:%lld: Invalid XML %s '%s'.", xml.lineNumber(), xml.columnNumber(), + qPrintable(xml.tokenString()), qPrintable(xml.name().toString())); } xml.readNext(); @@ -196,18 +146,17 @@ static QVariant mapFromXml(QXmlStreamReader &xml, Converter::Options options) static QVariant variantFromXml(QXmlStreamReader &xml, Converter::Options options) { QStringView name = xml.name(); - if (name == QLatin1String("list")) + if (name == "list"_L1) return listFromXml(xml, options); - if (name == QLatin1String("map")) + if (name == "map"_L1) return mapFromXml(xml, options); - if (name != QLatin1String("value")) { - fprintf(stderr, "%lld:%lld: Invalid XML key '%s'.\n", - xml.lineNumber(), xml.columnNumber(), qPrintable(name.toString())); - exit(EXIT_FAILURE); + if (name != "value"_L1) { + qFatal("%lld:%lld: Invalid XML key '%s'.", + xml.lineNumber(), xml.columnNumber(), qPrintable(name.toString())); } QXmlStreamAttributes attrs = xml.attributes(); - QStringView type = attrs.value(QLatin1String("type")); + QStringView type = attrs.value("type"_L1); forever { xml.readNext(); @@ -216,10 +165,8 @@ static QVariant variantFromXml(QXmlStreamReader &xml, Converter::Options options if (xml.isCDATA() || xml.isCharacters() || xml.isEndElement()) break; - fprintf(stderr, "%lld:%lld: Invalid XML %s '%s'.\n", - xml.lineNumber(), xml.columnNumber(), - qPrintable(xml.tokenString()), qPrintable(name.toString())); - exit(EXIT_FAILURE); + qFatal("%lld:%lld: Invalid XML %s '%s'.", xml.lineNumber(), xml.columnNumber(), + qPrintable(xml.tokenString()), qPrintable(name.toString())); } QStringView text = xml.text(); @@ -227,45 +174,43 @@ static QVariant variantFromXml(QXmlStreamReader &xml, Converter::Options options text = text.trimmed(); QVariant result; - bool ok; if (type.isEmpty()) { // ok - } else if (type == QLatin1String("number")) { + } else if (type == "number"_L1) { // try integer first + bool ok; qint64 v = text.toLongLong(&ok); if (ok) { result = v; } else { // let's see floating point double d = text.toDouble(&ok); - result = d; if (!ok) { - fprintf(stderr, "%lld:%lld: Invalid XML: could not interpret '%s' as a number.\n", - xml.lineNumber(), xml.columnNumber(), qPrintable(text.toString())); - exit(EXIT_FAILURE); + qFatal("%lld:%lld: Invalid XML: could not interpret '%s' as a number.", + xml.lineNumber(), xml.columnNumber(), qPrintable(text.toString())); } + result = d; } - } else if (type == QLatin1String("bytes")) { + } else if (type == "bytes"_L1) { QByteArray data = text.toLatin1(); QStringView encoding = attrs.value("encoding"); - if (encoding == QLatin1String("base64url")) { + if (encoding == "base64url"_L1) { result = QByteArray::fromBase64(data, QByteArray::Base64UrlEncoding); - } else if (encoding == QLatin1String("hex")) { + } else if (encoding == "hex"_L1) { result = QByteArray::fromHex(data); - } else if (encoding.isEmpty() || encoding == QLatin1String("base64")) { + } else if (encoding.isEmpty() || encoding == "base64"_L1) { result = QByteArray::fromBase64(data); } else { - fprintf(stderr, "%lld:%lld: Invalid XML: unknown encoding '%s' for bytes.\n", - xml.lineNumber(), xml.columnNumber(), qPrintable(encoding.toString())); - exit(EXIT_FAILURE); + qFatal("%lld:%lld: Invalid XML: unknown encoding '%s' for bytes.", + xml.lineNumber(), xml.columnNumber(), qPrintable(encoding.toString())); } - } else if (type == QLatin1String("string")) { + } else if (type == "string"_L1) { result = text.toString(); - } else if (type == QLatin1String("null")) { + } else if (type == "null"_L1) { result = QVariant::fromValue(nullptr); - } else if (type == QLatin1String("CBOR simple type")) { + } else if (type == "CBOR simple type"_L1) { result = QVariant::fromValue(QCborSimpleType(text.toShort())); - } else if (type == QLatin1String("bits")) { + } else if (type == "bits"_L1) { QBitArray ba; ba.resize(text.size()); qsizetype n = 0; @@ -276,36 +221,33 @@ static QVariant variantFromXml(QXmlStreamReader &xml, Converter::Options options } else if (c == '0') { ++n; } else if (!c.isSpace()) { - fprintf(stderr, "%lld:%lld: Invalid XML: invalid bit string '%s'.\n", - xml.lineNumber(), xml.columnNumber(), qPrintable(text.toString())); - exit(EXIT_FAILURE); + qFatal("%lld:%lld: Invalid XML: invalid bit string '%s'.", + xml.lineNumber(), xml.columnNumber(), qPrintable(text.toString())); } } ba.resize(n); result = ba; } else { int id = QMetaType::UnknownType; - if (type == QLatin1String("datetime")) + if (type == "datetime"_L1) id = QMetaType::QDateTime; - else if (type == QLatin1String("url")) + else if (type == "url"_L1) id = QMetaType::QUrl; - else if (type == QLatin1String("uuid")) + else if (type == "uuid"_L1) id = QMetaType::QUuid; - else if (type == QLatin1String("regex")) + else if (type == "regex"_L1) id = QMetaType::QRegularExpression; else id = QMetaType::fromName(type.toLatin1()).id(); if (id == QMetaType::UnknownType) { - fprintf(stderr, "%lld:%lld: Invalid XML: unknown type '%s'.\n", - xml.lineNumber(), xml.columnNumber(), qPrintable(type.toString())); - exit(EXIT_FAILURE); + qFatal("%lld:%lld: Invalid XML: unknown type '%s'.", + xml.lineNumber(), xml.columnNumber(), qPrintable(type.toString())); } result = text.toString(); if (!result.convert(QMetaType(id))) { - fprintf(stderr, "%lld:%lld: Invalid XML: could not parse content as type '%s'.\n", - xml.lineNumber(), xml.columnNumber(), qPrintable(type.toString())); - exit(EXIT_FAILURE); + qFatal("%lld:%lld: Invalid XML: could not parse content as type '%s'.", + xml.lineNumber(), xml.columnNumber(), qPrintable(type.toString())); } } @@ -314,10 +256,8 @@ static QVariant variantFromXml(QXmlStreamReader &xml, Converter::Options options } while (xml.isComment() || xml.isWhitespace()); if (!xml.isEndElement()) { - fprintf(stderr, "%lld:%lld: Invalid XML %s '%s'.\n", - xml.lineNumber(), xml.columnNumber(), - qPrintable(xml.tokenString()), qPrintable(name.toString())); - exit(EXIT_FAILURE); + qFatal("%lld:%lld: Invalid XML %s '%s'.", xml.lineNumber(), xml.columnNumber(), + qPrintable(xml.tokenString()), qPrintable(name.toString())); } xml.readNext(); @@ -334,9 +274,9 @@ static void variantToXml(QXmlStreamWriter &xml, const QVariant &v) variantToXml(xml, v); xml.writeEndElement(); } else if (type == QMetaType::QVariantMap || type == qMetaTypeId<VariantOrderedMap>()) { - const VariantOrderedMap map = (type == QMetaType::QVariantMap) ? - VariantOrderedMap(v.toMap()) : - qvariant_cast<VariantOrderedMap>(v); + const VariantOrderedMap map = (type == QMetaType::QVariantMap) + ? VariantOrderedMap(v.toMap()) + : qvariant_cast<VariantOrderedMap>(v); xml.writeStartElement("map"); for (const auto &pair : map) { @@ -348,7 +288,7 @@ static void variantToXml(QXmlStreamWriter &xml, const QVariant &v) xml.writeEndElement(); } else { xml.writeStartElement("value"); - QString typeString = QStringLiteral("type"); + QString typeString = "type"_L1; switch (type) { case QMetaType::Short: case QMetaType::UShort: @@ -437,8 +377,7 @@ static void variantToXml(QXmlStreamWriter &xml, const QVariant &v) xml.writeAttribute(typeString, QString::fromLatin1(typeName)); xml.writeCharacters(copy.toString()); } else { - fprintf(stderr, "XML: don't know how to serialize type '%s'.\n", typeName); - exit(EXIT_FAILURE); + qFatal("XML: don't know how to serialize type '%s'.", typeName); } } } @@ -446,37 +385,37 @@ static void variantToXml(QXmlStreamWriter &xml, const QVariant &v) } } -QString XmlConverter::name() +QString XmlConverter::name() const { - return QStringLiteral("xml"); + return "xml"_L1; } -Converter::Direction XmlConverter::directions() +Converter::Directions XmlConverter::directions() const { - return InOut; + return Direction::InOut; } -Converter::Options XmlConverter::outputOptions() +Converter::Options XmlConverter::outputOptions() const { return SupportsArbitraryMapKeys; } -const char *XmlConverter::optionsHelp() +const char *XmlConverter::optionsHelp() const { - return optionHelp; + return xmlOptionHelp; } -bool XmlConverter::probeFile(QIODevice *f) +bool XmlConverter::probeFile(QIODevice *f) const { if (QFile *file = qobject_cast<QFile *>(f)) { - if (file->fileName().endsWith(QLatin1String(".xml"))) + if (file->fileName().endsWith(".xml"_L1)) return true; } return f->isReadable() && f->peek(5) == "<?xml"; } -QVariant XmlConverter::loadFile(QIODevice *f, Converter *&outputConverter) +QVariant XmlConverter::loadFile(QIODevice *f, const Converter *&outputConverter) const { if (!outputConverter) outputConverter = this; @@ -484,25 +423,24 @@ QVariant XmlConverter::loadFile(QIODevice *f, Converter *&outputConverter) QXmlStreamReader xml(f); xml.readNextStartElement(); QVariant v = variantFromXml(xml, outputConverter->outputOptions()); - if (xml.hasError()) { - fprintf(stderr, "XML error: %s", qPrintable(xml.errorString())); - exit(EXIT_FAILURE); - } + if (xml.hasError()) + qFatal("XML error: %s", qPrintable(xml.errorString())); return v; } -void XmlConverter::saveFile(QIODevice *f, const QVariant &contents, const QStringList &options) +void XmlConverter::saveFile(QIODevice *f, const QVariant &contents, + const QStringList &options) const { bool compact = false; for (const QString &s : options) { - if (s == QLatin1String("compact=no")) { + if (s == "compact=no"_L1) { compact = false; - } else if (s == QLatin1String("compact=yes")) { + } else if (s == "compact=yes"_L1) { compact = true; } else { - fprintf(stderr, "Unknown option '%s' to XML output. Valid options are:\n%s", qPrintable(s), optionHelp); - exit(EXIT_FAILURE); + qFatal("Unknown option '%s' to XML output. Valid options are:\n%s", + qPrintable(s), xmlOptionHelp); } } |