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/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the utils of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <qcoreapplication.h>
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#include <qdiriterator.h>
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#include <qfile.h>
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#include <qmetaobject.h>
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#include <qstring.h>
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#include <qtextstream.h>
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#include <qdebug.h>
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#include <limits.h>
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#include <stdio.h>
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static bool printFilename = true;
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static bool modify = false;
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QString signature(const QString &line, int pos)
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{
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int start = pos;
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// find first open parentheses
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while (start < line.length() && line.at(start) != QLatin1Char('('))
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++start;
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int i = ++start;
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int par = 1;
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// find matching closing parentheses
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while (i < line.length() && par > 0) {
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if (line.at(i) == QLatin1Char('('))
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++par;
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else if (line.at(i) == QLatin1Char(')'))
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--par;
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++i;
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}
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if (par == 0)
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return line.mid(start, i - start - 1);
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return QString();
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}
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bool checkSignature(const QString &fileName, QString &line, const char *sig)
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{
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static QStringList fileList;
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int idx = -1;
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bool found = false;
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while ((idx = line.indexOf(sig, ++idx)) != -1) {
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const QByteArray sl(signature(line, idx).toLocal8Bit());
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QByteArray nsl(QMetaObject::normalizedSignature(sl.constData()));
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if (sl != nsl) {
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found = true;
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if (printFilename && !fileList.contains(fileName)) {
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fileList.prepend(fileName);
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printf("%s\n", fileName.toLocal8Bit().constData());
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}
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if (modify)
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line.replace(sl, nsl);
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//qDebug("expected '%s', got '%s'", nsl.data(), sl.data());
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}
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}
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return found;
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}
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void writeChanges(const QString &fileName, const QStringList &lines)
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{
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QFile file(fileName);
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if (!file.open(QIODevice::WriteOnly)) {
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qDebug("unable to open file '%s' for writing (%s)", fileName.toLocal8Bit().constData(), file.errorString().toLocal8Bit().constData());
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return;
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}
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QTextStream stream(&file);
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for (int i = 0; i < lines.count(); ++i)
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stream << lines.at(i);
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file.close();
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}
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void check(const QString &fileName)
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{
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QFile file(fileName);
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if (!file.open(QIODevice::ReadOnly)) {
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qDebug("unable to open file: '%s' (%s)", fileName.toLocal8Bit().constData(), file.errorString().toLocal8Bit().constData());
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return;
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}
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QStringList lines;
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bool found = false;
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while (true) {
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QByteArray bline = file.readLine(16384);
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if (bline.isEmpty())
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break;
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QString line = QString::fromLocal8Bit(bline);
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Q_ASSERT_X(line.endsWith("\n"), "check()", fileName.toLocal8Bit().constData());
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found |= checkSignature(fileName, line, "SLOT");
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found |= checkSignature(fileName, line, "SIGNAL");
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if (modify)
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lines << line;
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}
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file.close();
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if (found && modify) {
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printf("Modifying file: '%s'\n", fileName.toLocal8Bit().constData());
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writeChanges(fileName, lines);
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}
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}
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void traverse(const QString &path)
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{
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QDirIterator dirIterator(path, QDir::NoDotAndDotDot | QDir::Dirs | QDir::Files | QDir::NoSymLinks);
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while (dirIterator.hasNext()) {
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QString filePath = dirIterator.next();
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if (filePath.endsWith(".cpp"))
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check(filePath);
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else if (QFileInfo(filePath).isDir())
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traverse(filePath); // recurse
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}
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}
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int main(int argc, char *argv[])
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{
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QCoreApplication app(argc, argv);
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if (app.argc() < 2 || (app.argc() == 2 && (app.argv()[1][0] == '-'))) {
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printf("usage: normalize [--modify] <path>\n");
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printf(" <path> can be a single file or a directory (default: look for *.cpp recursively)");
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printf(" Outputs all filenames that contain non-normalized SIGNALs and SLOTs\n");
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printf(" with --modify: fix all occurrences of non-normalized SIGNALs and SLOTs\n");
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return 1;
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}
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QString path;
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if (qstrcmp(app.argv()[1], "--modify") == 0) {
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printFilename = false;
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modify = true;
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path = app.argv()[2];
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} else {
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path = app.argv()[1];
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}
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if (path.startsWith("-")) {
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qWarning("unknown parameter: %s", path.toLocal8Bit().constData());
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return 1;
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}
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QFileInfo fi(path);
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if (fi.isFile()) {
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check(path);
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} else if (fi.isDir()) {
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if (!path.endsWith("/"))
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path.append("/");
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traverse(path);
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} else {
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qWarning("Don't know what to do with '%s'", path.toLocal8Bit().constData());
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return 1;
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}
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return 0;
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}
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