--- a/src/uri.h	Sat Dec 12 14:42:36 2020 +0100
+++ b/src/uri.h	Sat Dec 12 19:52:38 2020 +0100
@@ -24,7 +24,9 @@
 
 /** general options of the INI writer */
 namespace option {
+// TODO: „allow sections“ vs. „enable sections“, see also relpipe-in-ini
 static const wchar_t* AllowSections = L"allow-sections";
+static const wchar_t* HierarchySeparator = L"hierarchy-separator";
 // static const wchar_t* AllowSectionTags = L"allow-section-tags";
 // static const wchar_t* AllowSubKeys = L"allow-sub-keys";
 static const wchar_t* CommentSeparatorForSections = L"comment-separator-for-sections";