qtbase-opensource-src/examples/xml/xmlstreamlint/main.cpp

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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
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** accordance with the commercial license agreement provided with the
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** information use the contact form at https://www.qt.io/contact-us.
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** 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
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** * Redistributions of source code must retain the above copyright
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****************************************************************************/
#include <QCoreApplication>
#include <QFile>
#include <QStringList>
#include <QTextStream>
#include <QXmlStreamReader>
/*
This class exists for the sole purpose of creating a translation context.
*/
class XmlStreamLint
{
public:
Q_DECLARE_TR_FUNCTIONS(XmlStreamLint)
};
int main(int argc, char *argv[])
{
enum ExitCode
{
Success,
ParseFailure,
ArgumentError,
WriteError,
FileFailure
};
QCoreApplication app(argc, argv);
QTextStream errorStream(stderr);
if (argc != 2)
{
errorStream << XmlStreamLint::tr(
"Usage: xmlstreamlint <path to XML file>\n");
return ArgumentError;
}
QString inputFilePath(QCoreApplication::arguments().at(1));
QFile inputFile(inputFilePath);
if (!QFile::exists(inputFilePath))
{
errorStream << XmlStreamLint::tr(
"File %1 does not exist.\n").arg(inputFilePath);
return FileFailure;
} else if (!inputFile.open(QIODevice::ReadOnly)) {
errorStream << XmlStreamLint::tr(
"Failed to open file %1.\n").arg(inputFilePath);
return FileFailure;
}
QFile outputFile;
if (!outputFile.open(stdout, QIODevice::WriteOnly))
{
errorStream << XmlStreamLint::tr("Failed to open stdout.");
return WriteError;
}
//! [0]
QXmlStreamReader reader(&inputFile);
QXmlStreamWriter writer(&outputFile);
//! [0]
//! [1]
while (!reader.atEnd())
{
reader.readNext();
if (reader.error())
{
errorStream << XmlStreamLint::tr(
"Error: %1 in file %2 at line %3, column %4.\n").arg(
reader.errorString(), inputFilePath,
QString::number(reader.lineNumber()),
QString::number(reader.columnNumber()));
return ParseFailure;
//! [1]
//! [2]
} else
writer.writeCurrentToken(reader);
}
//! [2]
return Success;
}