1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the utils of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

    33 **

    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 #include <qcoreapplication.h>

    42 #include <qdiriterator.h>

    43 #include <qfile.h>

    44 #include <qmetaobject.h>

    45 #include <qstring.h>

    46 #include <qtextstream.h>

    47 

    48 #include <qdebug.h>

    49 

    50 #include <limits.h>

    51 #include <stdio.h>

    52 

    53 static bool printFilename = true;

    54 static bool modify = false;

    55 

    56 QString signature(const QString &line, int pos)

    57 {

    58     int start = pos;

    59     // find first open parentheses

    60     while (start < line.length() && line.at(start) != QLatin1Char('('))

    61         ++start;

    62     int i = ++start;

    63     int par = 1;

    64     // find matching closing parentheses

    65     while (i < line.length() && par > 0) {

    66         if (line.at(i) == QLatin1Char('('))

    67             ++par;

    68         else if (line.at(i) == QLatin1Char(')'))

    69             --par;

    70         ++i;

    71     }

    72     if (par == 0)

    73         return line.mid(start, i - start - 1);

    74     return QString();

    75 }

    76 

    77 bool checkSignature(const QString &fileName, QString &line, const char *sig)

    78 {

    79     static QStringList fileList;

    80 

    81     int idx = -1;

    82     bool found = false;

    83     while ((idx = line.indexOf(sig, ++idx)) != -1) {

    84         const QByteArray sl(signature(line, idx).toLocal8Bit());

    85         QByteArray nsl(QMetaObject::normalizedSignature(sl.constData()));

    86         if (sl != nsl) {

    87             found = true;

    88             if (printFilename && !fileList.contains(fileName)) {

    89                 fileList.prepend(fileName);

    90                 printf("%s\n", fileName.toLocal8Bit().constData());

    91             }

    92             if (modify)

    93                 line.replace(sl, nsl);

    94             //qDebug("expected '%s', got '%s'", nsl.data(), sl.data());

    95         }

    96     }

    97     return found;

    98 }

    99 

   100 void writeChanges(const QString &fileName, const QStringList &lines)

   101 {

   102     QFile file(fileName);

   103     if (!file.open(QIODevice::WriteOnly)) {

   104         qDebug("unable to open file '%s' for writing (%s)", fileName.toLocal8Bit().constData(), file.errorString().toLocal8Bit().constData());

   105         return;

   106     }

   107     QTextStream stream(&file);

   108     for (int i = 0; i < lines.count(); ++i)

   109         stream << lines.at(i);

   110     file.close();

   111 }

   112 

   113 void check(const QString &fileName)

   114 {

   115     QFile file(fileName);

   116     if (!file.open(QIODevice::ReadOnly)) {

   117         qDebug("unable to open file: '%s' (%s)", fileName.toLocal8Bit().constData(), file.errorString().toLocal8Bit().constData());

   118         return;

   119     }

   120     QStringList lines;

   121     bool found = false;

   122     while (true) {

   123         QByteArray bline = file.readLine(16384);

   124         if (bline.isEmpty())

   125             break;

   126         QString line = QString::fromLocal8Bit(bline);

   127         Q_ASSERT_X(line.endsWith("\n"), "check()", fileName.toLocal8Bit().constData());

   128         found |= checkSignature(fileName, line, "SLOT");

   129         found |= checkSignature(fileName, line, "SIGNAL");

   130         if (modify)

   131             lines << line;

   132     }

   133     file.close();

   134 

   135     if (found && modify) {

   136         printf("Modifying file: '%s'\n", fileName.toLocal8Bit().constData());

   137         writeChanges(fileName, lines);

   138     }

   139 }

   140 

   141 void traverse(const QString &path)

   142 {

   143     QDirIterator dirIterator(path, QDir::NoDotAndDotDot | QDir::Dirs | QDir::Files | QDir::NoSymLinks);

   144 

   145     while (dirIterator.hasNext()) {

   146         QString filePath = dirIterator.next();

   147         if (filePath.endsWith(".cpp"))

   148             check(filePath);

   149         else if (QFileInfo(filePath).isDir())

   150             traverse(filePath); // recurse

   151     }

   152 }

   153 

   154 int main(int argc, char *argv[])

   155 {

   156     QCoreApplication app(argc, argv);

   157 

   158     if (app.argc() < 2 || (app.argc() == 2 && (app.argv()[1][0] == '-'))) {

   159         printf("usage: normalize [--modify] <path>\n");

   160         printf("  <path> can be a single file or a directory (default: look for *.cpp recursively)");

   161         printf("  Outputs all filenames that contain non-normalized SIGNALs and SLOTs\n");

   162         printf("  with --modify: fix all occurences of non-normalized SIGNALs and SLOTs\n");

   163         return 1;

   164     }

   165 

   166     QString path;

   167     if (qstrcmp(app.argv()[1], "--modify") == 0) {

   168         printFilename = false;

   169         modify = true;

   170         path = app.argv()[2];

   171     } else {

   172         path = app.argv()[1];

   173     }

   174 

   175     if (path.startsWith("-")) {

   176         qWarning("unknown parameter: %s", path.toLocal8Bit().constData());

   177         return 1;

   178     }

   179 

   180     QFileInfo fi(path);

   181     if (fi.isFile()) {

   182         check(path);

   183     } else if (fi.isDir()) {

   184         if (!path.endsWith("/"))

   185             path.append("/");

   186         traverse(path);

   187     } else {

   188         qWarning("Don't know what to do with '%s'", path.toLocal8Bit().constData());

   189         return 1;

   190     }

   191 

   192     return 0;

   193 }