Mega Code Archive
Pretty print XML
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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
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** accordance with the Qt Commercial License Agreement provided with the
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** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
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** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
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****************************************************************************/
#include <QCoreApplication>
#include <QFile>
#include <QHash>
#include <QPair>
#include <QStringList>
#include <QTextStream>
#include <QXmlStreamReader>
/*
This class exists for the sole purpose of creating a translation context.
*/
class PrettyPrint
{
Q_DECLARE_TR_FUNCTIONS(PrettyPrint)
};
int main(int argc, char *argv[])
{
enum ExitCode
{
Success,
ParseFailure,
ArgumentError,
WriteError,
FileFailure
};
QCoreApplication app(argc, argv);
QTextStream errorStream(stderr);
if (argc != 2)
{
errorStream << PrettyPrint::tr(
"Usage: prettyprint <path to XML file>\n");
return ArgumentError;
}
QString inputFilePath(QCoreApplication::arguments().at(1));
QFile inputFile(inputFilePath);
if (!QFile::exists(inputFilePath))
{
errorStream << PrettyPrint::tr(
"File %1 does not exist.\n").arg(inputFilePath);
return FileFailure;
} else if (!inputFile.open(QIODevice::ReadOnly)) {
errorStream << PrettyPrint::tr(
"Failed to open file %1.\n").arg(inputFilePath);
return FileFailure;
}
QFile outputFile;
if (!outputFile.open(stdout, QIODevice::WriteOnly))
{
QTextStream(stderr) << PrettyPrint::tr("Failed to open stdout.");
return WriteError;
}
QXmlStreamReader reader(&inputFile);
int indentation = 0;
QHash<int,QPair<int, int> > indentationStack;
while (!reader.atEnd())
{
reader.readNext();
if (reader.isStartElement()) {
indentationStack[indentation] = QPair<int,int>(
reader.lineNumber(), reader.columnNumber());
indentation += 1;
} else if (reader.isEndElement()) {
indentationStack.remove(indentation);
indentation -= 1;
}
if (reader.error())
{
errorStream << PrettyPrint::tr(
"Error: %1 in file %2 at line %3, column %4.\n").arg(
reader.errorString(), inputFilePath,
QString::number(reader.lineNumber()),
QString::number(reader.columnNumber()));
if (indentationStack.contains(indentation-1)) {
int line = indentationStack[indentation-1].first;
int column = indentationStack[indentation-1].second;
errorStream << PrettyPrint::tr(
"Opened at line %1, column %2.\n").arg(
QString::number(line),
QString::number(column));
}
return ParseFailure;
} else if (reader.isStartElement() && !reader.name().isEmpty()) {
outputFile.write(QByteArray().fill(' ', indentation));
outputFile.write(reader.name().toString().toLocal8Bit());
outputFile.write(QString(" line %1, column %2\n").arg(
reader.lineNumber()).arg(reader.columnNumber()).toLocal8Bit());
}
}
return Success;
}
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