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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "lupdate.h"
#include <translator.h>
#include <xmlparser.h>
#include <QtCore/QCoreApplication>
#include <QtCore/QDebug>
#include <QtCore/QFile>
#include <QtCore/QString>
#include <QtCore/QXmlStreamReader>
QT_BEGIN_NAMESPACE
using namespace Qt::StringLiterals;
class UiReader : public XmlParser
{
public:
UiReader(Translator &translator, ConversionData &cd, QXmlStreamReader &reader)
: XmlParser(reader),
m_translator(translator),
m_cd(cd),
m_lineNumber(-1),
m_isTrString(false),
m_insideStringList(false),
m_idBasedTranslations(false)
{
}
~UiReader() override = default;
private:
bool startElement(QStringView namespaceURI, QStringView localName,
QStringView qName, const QXmlStreamAttributes &atts) override;
bool endElement(QStringView namespaceURI, QStringView localName,
QStringView qName) override;
bool characters(QStringView ch) override;
bool fatalError(qint64 line, qint64 column, const QString &message) override;
void flush();
void readTranslationAttributes(const QXmlStreamAttributes &atts);
Translator &m_translator;
ConversionData &m_cd;
QString m_context;
QString m_source;
QString m_comment;
QString m_extracomment;
QString m_id;
QString m_accum;
int m_lineNumber;
bool m_isTrString;
bool m_insideStringList;
bool m_idBasedTranslations;
};
bool UiReader::startElement(QStringView namespaceURI, QStringView localName,
QStringView qName, const QXmlStreamAttributes &atts)
{
Q_UNUSED(namespaceURI);
Q_UNUSED(localName);
if (qName == QLatin1String("string")) {
flush();
if (!m_insideStringList)
readTranslationAttributes(atts);
} else if (qName == QLatin1String("stringlist")) {
flush();
m_insideStringList = true;
readTranslationAttributes(atts);
} else if (qName == QLatin1String("ui")) { // UI "header"
const auto attr = QStringLiteral("idbasedtr");
m_idBasedTranslations =
atts.hasAttribute(attr) && atts.value(attr) == QLatin1String("true");
}
m_accum.clear();
return true;
}
bool UiReader::endElement(QStringView namespaceURI, QStringView localName,
QStringView qName)
{
Q_UNUSED(namespaceURI);
Q_UNUSED(localName);
m_accum.replace(QLatin1String("\r\n"), QLatin1String("\n"));
if (qName == QLatin1String("class")) { // UI "header"
if (m_context.isEmpty())
m_context = m_accum;
} else if (qName == QLatin1String("string") && m_isTrString) {
m_source = m_accum;
} else if (qName == QLatin1String("comment")) { // FIXME: what's that?
m_comment = m_accum;
flush();
} else if (qName == QLatin1String("stringlist")) {
m_insideStringList = false;
} else {
flush();
}
return true;
}
bool UiReader::characters(QStringView ch)
{
m_accum += ch.toString();
return true;
}
bool UiReader::fatalError(qint64 line, qint64 column, const QString &message)
{
QString msg = QStringLiteral("XML error: Parse error at line %1, column %2 (%3).")
.arg(line)
.arg(column)
.arg(message);
m_cd.appendError(msg);
return false;
}
void UiReader::flush()
{
if (!m_context.isEmpty() && !m_source.isEmpty()) {
TranslatorMessage msg(m_context, m_source,
m_comment, QString(), m_cd.m_sourceFileName,
m_lineNumber, QStringList());
msg.setExtraComment(m_extracomment);
msg.setId(m_id);
m_translator.extend(msg, m_cd);
}
m_source.clear();
if (!m_insideStringList) {
m_comment.clear();
m_extracomment.clear();
m_id.clear();
}
}
void UiReader::readTranslationAttributes(const QXmlStreamAttributes &atts)
{
const auto notr = atts.value(QStringLiteral("notr"));
if (notr.isEmpty() || notr != QStringLiteral("true")) {
m_isTrString = true;
m_comment = atts.value(QStringLiteral("comment")).toString();
m_extracomment = atts.value(QStringLiteral("extracomment")).toString();
if (m_idBasedTranslations)
m_id = atts.value(QStringLiteral("id")).toString();
if (!m_cd.m_noUiLines)
m_lineNumber = static_cast<int>(reader.lineNumber());
} else {
m_isTrString = false;
}
}
bool loadUI(Translator &translator, const QString &filename, ConversionData &cd)
{
cd.m_sourceFileName = filename;
QFile file(filename);
if (!file.open(QIODevice::ReadOnly)) {
cd.appendError(QStringLiteral("Cannot open %1: %2").arg(filename, file.errorString()));
return false;
}
QXmlStreamReader reader(&file);
reader.setNamespaceProcessing(false);
UiReader uiReader(translator, cd, reader);
bool result = uiReader.parse();
if (!result)
cd.appendError(u"Parse error in UI file"_s);
return result;
}
QT_END_NAMESPACE
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