--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/qdoc3/uncompressor.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,108 @@
+/****************************************************************************
+**
+** 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 tools applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** 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
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*
+  uncompressor.cpp
+*/
+
+#include "uncompressor.h"
+
+QT_BEGIN_NAMESPACE
+
+QList<Uncompressor *> Uncompressor::uncompressors;
+
+
+/*!
+  \class Uncompressor
+  
+  \brief The Uncompressor class is a base class for classes that
+  know how to uncompress a certain kind of compressed file.
+
+  The uncompressor contains a list of the filename extensions
+  of the file types that the uncompressor knows how to uncompress.
+
+  It maintains a static list of all the instances of Uncompressor
+  that have been created. It also has a static function for searching
+  that list to find the uncompressor to use for uncompressing a file
+  with a certain extension.
+ */
+
+/*!
+  The constructor takes a list of filename extensions, which it
+  copies and saves internally. This uncompressor is prepended
+  to the stack list.
+ */
+Uncompressor::Uncompressor( const QStringList& extensions )
+    : fileExts( extensions )
+{
+    uncompressors.prepend( this );
+}
+
+/*!
+  The destructor deletes all the filename extensions.
+ */
+Uncompressor::~Uncompressor()
+{
+    uncompressors.removeAll( this );
+}
+
+/*!
+  This function searches the static list of uncompressors to find the
+  first one that can handle \a fileName. If it finds an acceptable
+  uncompressor, it returns a pointer to it. Otherwise it returns null.
+*/
+Uncompressor*
+Uncompressor::uncompressorForFileName( const QString& fileName )
+{
+    int dot = -1;
+    while ( (dot = fileName.indexOf(".", dot + 1)) != -1 ) {
+        QString ext = fileName.mid( dot + 1 );
+        QList<Uncompressor *>::ConstIterator u = uncompressors.begin();
+        while ( u != uncompressors.end() ) {
+            if ( (*u)->fileExtensions().contains(ext) )
+                return *u;
+            ++u;
+        }
+    }
+    return 0;
+}
+
+QT_END_NAMESPACE