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/****************************************************************************
**
** Copyright (C) 2019 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt for Python.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** 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 General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** 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-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "xmlutils.h"
#include "xmlutils_qt.h"
#include <QtXmlPatterns/QXmlQuery>
#include <QtCore/QDir>
#include <QtCore/QUrl>
class QtXQuery : public XQuery
{
public:
QtXQuery() = default;
bool setFocus(const QString &fileName)
{ return m_xquery.setFocus(QUrl::fromLocalFile(fileName)); }
protected:
QString doEvaluate(const QString &xPathExpression, QString *errorMessage) override;
private:
QXmlQuery m_xquery;
};
QString QtXQuery::doEvaluate(const QString &xPathExpression, QString *errorMessage)
{
m_xquery.setQuery(xPathExpression);
if (!m_xquery.isValid()) {
*errorMessage = QLatin1String("QXmlQuery: Bad query: \"") + xPathExpression
+ QLatin1Char('"');
return QString();
}
QString result;
m_xquery.evaluateTo(&result);
return result;
}
QSharedPointer<XQuery> qt_createXQuery(const QString &focus, QString *errorMessage)
{
QSharedPointer<QtXQuery> result(new QtXQuery);
if (!result->setFocus(focus)) {
*errorMessage = QLatin1String("QXmlQuery: Cannot set focus to ") + QDir::toNativeSeparators(focus);
result.reset();
}
return std::move(result);
}
// XSLT transformation
static const char xsltPrefix[] = R"(<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
)";
QString qt_xsl_transform(const QString &xml, QString xsl, QString *errorMessage)
{
QXmlQuery query(QXmlQuery::XSLT20);
if (!xsl.startsWith(QLatin1String("<?xml"))) {
xsl.prepend(QLatin1String(xsltPrefix));
xsl.append(QLatin1String("</xsl:stylesheet>"));
}
query.setFocus(xml);
query.setQuery(xsl);
if (!query.isValid()) {
*errorMessage = QLatin1String("QXmlQuery: Invalid query \"") + xsl
+ QLatin1String("\".");
return xml;
}
QString result;
if (!query.evaluateTo(&result)) {
*errorMessage = QLatin1String("QXmlQuery: evaluate() failed.");
return xml;
}
return result.trimmed();
}
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