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diff --git a/src/corelib/text/qtextboundaryfinder.h b/src/corelib/text/qtextboundaryfinder.h
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+++ b/src/corelib/text/qtextboundaryfinder.h
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+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QTEXTBOUNDARYFINDER_H
+#define QTEXTBOUNDARYFINDER_H
+
+#include <QtCore/qchar.h>
+#include <QtCore/qstring.h>
+
+QT_BEGIN_NAMESPACE
+
+
+class QTextBoundaryFinderPrivate;
+
+class Q_CORE_EXPORT QTextBoundaryFinder
+{
+public:
+    QTextBoundaryFinder();
+    QTextBoundaryFinder(const QTextBoundaryFinder &other);
+    QTextBoundaryFinder &operator=(const QTextBoundaryFinder &other);
+    ~QTextBoundaryFinder();
+
+    enum BoundaryType {
+        Grapheme,
+        Word,
+        Sentence,
+        Line
+    };
+
+    enum BoundaryReason {
+        NotAtBoundary = 0,
+        BreakOpportunity = 0x1f,
+        StartOfItem = 0x20,
+        EndOfItem = 0x40,
+        MandatoryBreak = 0x80,
+        SoftHyphen = 0x100
+    };
+    Q_DECLARE_FLAGS( BoundaryReasons, BoundaryReason )
+
+    QTextBoundaryFinder(BoundaryType type, const QString &string);
+    QTextBoundaryFinder(BoundaryType type, const QChar *chars, int length, unsigned char *buffer = nullptr, int bufferSize = 0);
+
+    inline bool isValid() const { return d; }
+
+    inline BoundaryType type() const { return t; }
+    QString string() const;
+
+    void toStart();
+    void toEnd();
+    int position() const;
+    void setPosition(int position);
+
+    int toNextBoundary();
+    int toPreviousBoundary();
+
+    bool isAtBoundary() const;
+    BoundaryReasons boundaryReasons() const;
+
+private:
+    BoundaryType t;
+    QString s;
+    const QChar *chars;
+    int length;
+    int pos;
+    uint freePrivate : 1;
+    uint unused : 31;
+    QTextBoundaryFinderPrivate *d;
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QTextBoundaryFinder::BoundaryReasons)
+
+QT_END_NAMESPACE
+
+#endif
+