diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000..a02f024
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,88 @@
+---
+# SPDX-License-Identifier: MIT
+#
+# Copyright (C) 2019 Christoph Cullmann <cullmann@kde.org>
+# Copyright (C) 2019 Gernot Gebhard <gebhard@absint.com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+# Style for C++
+Language: Cpp
+
+# base is WebKit coding style: http://www.webkit.org/coding/coding-style.html
+# below are only things set that diverge from this style!
+BasedOnStyle: WebKit
+
+# enforce C++11 (e.g. for std::vector<std::vector<lala>>
+Standard: Cpp11
+
+# 4 spaces indent
+TabWidth: 4
+
+# 3 * 80 wide lines
+ColumnLimit: 240
+
+# sematics shall be grouped via empty lines
+SortIncludes: true
+
+# break before braces on function, namespace and class definitions.
+BreakBeforeBraces: Linux
+
+# CrlInstruction *a;
+PointerAlignment: Right
+
+# horizontally aligns arguments after an open bracket.
+AlignAfterOpenBracket: Align
+
+# align trailing comments
+AlignTrailingComments: true
+
+# don't move all parameters to new line
+AllowAllParametersOfDeclarationOnNextLine: false
+
+# no single line functions
+AllowShortFunctionsOnASingleLine: None
+
+# always break before you encounter multi line strings
+AlwaysBreakBeforeMultilineStrings: true
+
+# don't move arguments to own lines if they are not all on the same
+BinPackArguments: false
+
+# don't move parameters to own lines if they are not all on the same
+BinPackParameters: false
+
+# don't break binary ops
+BreakBeforeBinaryOperators: None
+
+# don't break tenary ops
+BreakBeforeTernaryOperators: false
+
+# format C++11 braced lists like function calls
+Cpp11BracedListStyle: true
+
+# indent case labels one level
+IndentCaseLabels: true
+
+# remove empty lines
+KeepEmptyLinesAtTheStartOfBlocks: false
+
+# no namespace indentation to keep indent level low
+NamespaceIndentation: None
diff --git a/reformat.sh b/reformat.sh
new file mode 100755
index 0000000..b58ea83
--- /dev/null
+++ b/reformat.sh
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+# reformat the code
+# no operator is implicit -a with higher precedence than -o
+find . \( -name "*.cpp" -or -name "*.h" \) -exec clang-format -i {} \;
+
+# check in the result
+git commit -a -m "GIT_SILENT: application of coding style"