--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/configmix/constants.py	Sun Apr 25 16:09:00 2021 +0200
@@ -0,0 +1,32 @@
+# -*- coding: utf-8 -*-
+# :-
+# :Copyright: (c) 2015-2021, Franz Glasner. All rights reserved.
+# :License:   BSD-3-Clause. See LICENSE.txt for details.
+# :-
+"""Some important public contants
+
+"""
+
+from .compat import u
+
+
+COMMENTS = [
+    u("__comment"),
+    u("__doc"),
+]
+"""Prefixes for comment configuration keys that are to be handled as
+comments
+
+"""
+
+DIR_PREFIX = u("<dir>")
+"""Prefix for configuration values to read other configuration files from
+given directory
+
+"""
+
+DEL_VALUE = u("{{::DEL::}}")
+"""Value for configuration items to signal that the corresponding
+key-value is to be deleted when configurations are merged
+
+"""