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diff --git a/src/xml/dom/qdomhelpers.cpp b/src/xml/dom/qdomhelpers.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtXml module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qdomhelpers_p.h"
+#include "qdom_p.h"
+#include "private/qxml_p.h"
+
+QT_BEGIN_NAMESPACE
+
+/**************************************************************
+ *
+ * QDomHandler
+ *
+ **************************************************************/
+
+QDomHandler::QDomHandler(QDomDocumentPrivate *adoc, QXmlSimpleReader *areader,
+ bool namespaceProcessing)
+ : errorLine(0),
+ errorColumn(0),
+ doc(adoc),
+ node(adoc),
+ cdata(false),
+ nsProcessing(namespaceProcessing),
+ locator(nullptr),
+ reader(areader)
+{
+}
+
+QDomHandler::~QDomHandler() {}
+
+bool QDomHandler::endDocument()
+{
+ // ### is this really necessary? (rms)
+ if (node != doc)
+ return false;
+ return true;
+}
+
+bool QDomHandler::startDTD(const QString &name, const QString &publicId, const QString &systemId)
+{
+ doc->doctype()->name = name;
+ doc->doctype()->publicId = publicId;
+ doc->doctype()->systemId = systemId;
+ return true;
+}
+
+bool QDomHandler::startElement(const QString &nsURI, const QString &, const QString &qName,
+ const QXmlAttributes &atts)
+{
+ // tag name
+ QDomNodePrivate *n;
+ if (nsProcessing) {
+ n = doc->createElementNS(nsURI, qName);
+ } else {
+ n = doc->createElement(qName);
+ }
+
+ if (!n)
+ return false;
+
+ n->setLocation(locator->lineNumber(), locator->columnNumber());
+
+ node->appendChild(n);
+ node = n;
+
+ // attributes
+ for (int i = 0; i < atts.length(); i++) {
+ if (nsProcessing) {
+ ((QDomElementPrivate *)node)->setAttributeNS(atts.uri(i), atts.qName(i), atts.value(i));
+ } else {
+ ((QDomElementPrivate *)node)->setAttribute(atts.qName(i), atts.value(i));
+ }
+ }
+
+ return true;
+}
+
+bool QDomHandler::endElement(const QString &, const QString &, const QString &)
+{
+ if (!node || node == doc)
+ return false;
+ node = node->parent();
+
+ return true;
+}
+
+bool QDomHandler::characters(const QString &ch)
+{
+ // No text as child of some document
+ if (node == doc)
+ return false;
+
+ QScopedPointer<QDomNodePrivate> n;
+ if (cdata) {
+ n.reset(doc->createCDATASection(ch));
+ } else if (!entityName.isEmpty()) {
+ QScopedPointer<QDomEntityPrivate> e(
+ new QDomEntityPrivate(doc, nullptr, entityName, QString(), QString(), QString()));
+ e->value = ch;
+ e->ref.deref();
+ doc->doctype()->appendChild(e.data());
+ e.take();
+ n.reset(doc->createEntityReference(entityName));
+ } else {
+ n.reset(doc->createTextNode(ch));
+ }
+ n->setLocation(locator->lineNumber(), locator->columnNumber());
+ node->appendChild(n.data());
+ n.take();
+
+ return true;
+}
+
+bool QDomHandler::processingInstruction(const QString &target, const QString &data)
+{
+ QDomNodePrivate *n;
+ n = doc->createProcessingInstruction(target, data);
+ if (n) {
+ n->setLocation(locator->lineNumber(), locator->columnNumber());
+ node->appendChild(n);
+ return true;
+ } else
+ return false;
+}
+
+bool QDomHandler::skippedEntity(const QString &name)
+{
+ // we can only handle inserting entity references into content
+ if (reader && !reader->d_ptr->skipped_entity_in_content)
+ return true;
+
+ QDomNodePrivate *n = doc->createEntityReference(name);
+ n->setLocation(locator->lineNumber(), locator->columnNumber());
+ node->appendChild(n);
+ return true;
+}
+
+bool QDomHandler::fatalError(const QXmlParseException &exception)
+{
+ errorMsg = exception.message();
+ errorLine = exception.lineNumber();
+ errorColumn = exception.columnNumber();
+ return QXmlDefaultHandler::fatalError(exception);
+}
+
+bool QDomHandler::startCDATA()
+{
+ cdata = true;
+ return true;
+}
+
+bool QDomHandler::endCDATA()
+{
+ cdata = false;
+ return true;
+}
+
+bool QDomHandler::startEntity(const QString &name)
+{
+ entityName = name;
+ return true;
+}
+
+bool QDomHandler::endEntity(const QString &)
+{
+ entityName.clear();
+ return true;
+}
+
+bool QDomHandler::comment(const QString &ch)
+{
+ QDomNodePrivate *n;
+ n = doc->createComment(ch);
+ n->setLocation(locator->lineNumber(), locator->columnNumber());
+ node->appendChild(n);
+ return true;
+}
+
+bool QDomHandler::unparsedEntityDecl(const QString &name, const QString &publicId,
+ const QString &systemId, const QString &notationName)
+{
+ QDomEntityPrivate *e =
+ new QDomEntityPrivate(doc, nullptr, name, publicId, systemId, notationName);
+ // keep the refcount balanced: appendChild() does a ref anyway.
+ e->ref.deref();
+ doc->doctype()->appendChild(e);
+ return true;
+}
+
+bool QDomHandler::externalEntityDecl(const QString &name, const QString &publicId,
+ const QString &systemId)
+{
+ return unparsedEntityDecl(name, publicId, systemId, QString());
+}
+
+bool QDomHandler::notationDecl(const QString &name, const QString &publicId,
+ const QString &systemId)
+{
+ QDomNotationPrivate *n = new QDomNotationPrivate(doc, nullptr, name, publicId, systemId);
+ // keep the refcount balanced: appendChild() does a ref anyway.
+ n->ref.deref();
+ doc->doctype()->appendChild(n);
+ return true;
+}
+
+void QDomHandler::setDocumentLocator(QXmlLocator *locator)
+{
+ this->locator = locator;
+}
+
+QT_END_NAMESPACE
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