diff --git a/src/plugins/texteditor/blockrange.h b/src/plugins/texteditor/blockrange.h
new file mode 100644
index 00000000000..debfb4ea5d3
--- /dev/null
+++ b/src/plugins/texteditor/blockrange.h
@@ -0,0 +1,67 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** 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 http://www.qt.io/terms-conditions.  For further information
+** use the contact form at http://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 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file.  Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, The Qt Company gives you certain additional
+** rights.  These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#ifndef BLOCKRANGE_H
+#define BLOCKRANGE_H
+
+namespace TextEditor {
+
+class BlockRange
+{
+public:
+    BlockRange() = default;
+    BlockRange(int firstPosition, int lastPosition)
+      : firstPosition(firstPosition),
+        lastPosition(lastPosition)
+    {}
+
+    bool isNull() const
+    {
+        return lastPosition < firstPosition;
+    }
+
+    int first() const
+    {
+        return firstPosition;
+    }
+
+    int last() const
+    {
+        return lastPosition;
+    }
+
+private:
+    int firstPosition = 0;
+    int lastPosition = -1;
+};
+
+} // namespace TextEditor
+
+#endif // BLOCKRANGE_H
diff --git a/src/plugins/texteditor/texteditor.h b/src/plugins/texteditor/texteditor.h
index c4ab6864a20..273d5bbb277 100644
--- a/src/plugins/texteditor/texteditor.h
+++ b/src/plugins/texteditor/texteditor.h
@@ -32,6 +32,7 @@
 #define TEXTEDITOR_H
 
 #include "texteditor_global.h"
+#include "blockrange.h"
 #include "codeassist/assistenums.h"
 
 #include <coreplugin/editormanager/ieditor.h>
@@ -91,24 +92,6 @@ class MarginSettings;
 class StorageSettings;
 class TypingSettings;
 
-class TEXTEDITOR_EXPORT BlockRange
-{
-public:
-    BlockRange() : _first(0), _last(-1) {}
-    BlockRange(int firstPosition, int lastPosition)
-      : _first(firstPosition), _last(lastPosition)
-    {}
-
-    inline bool isNull() const { return _last < _first; }
-
-    int first() const { return _first; }
-    int last() const { return _last; }
-
-private:
-    int _first;
-    int _last;
-};
-
 enum TextPositionOperation
 {
     CurrentPosition = 1,
diff --git a/src/plugins/texteditor/texteditor.pro b/src/plugins/texteditor/texteditor.pro
index a4f47b2500d..9c6d2c0919e 100644
--- a/src/plugins/texteditor/texteditor.pro
+++ b/src/plugins/texteditor/texteditor.pro
@@ -210,7 +210,8 @@ HEADERS += texteditorplugin.h \
     textmark.h \
     codeassist/keywordscompletionassist.h \
     textmarkregistry.h \
-    marginsettings.h
+    marginsettings.h \
+    blockrange.h
 
 FORMS += \
     displaysettingspage.ui \
diff --git a/src/plugins/texteditor/texteditor.qbs b/src/plugins/texteditor/texteditor.qbs
index 0e3ad79dad9..17cd8845ba8 100644
--- a/src/plugins/texteditor/texteditor.qbs
+++ b/src/plugins/texteditor/texteditor.qbs
@@ -27,6 +27,7 @@ QtcPlugin {
         "behaviorsettingswidget.cpp",
         "behaviorsettingswidget.h",
         "behaviorsettingswidget.ui",
+        "blockrange.h",
         "circularclipboard.cpp",
         "circularclipboard.h",
         "circularclipboardassist.cpp",