diff --git a/Sources/DocCMiddleware/Internal/Extensions/String+Formats.swift b/Sources/DocCMiddleware/Internal/Extensions/String+Formats.swift
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+// ===----------------------------------------------------------------------===
+//
+// This source file is part of the Hummingbird DocC Middleware open source project
+//
+// Copyright (c) 2025 Röck+Cöde VoF. and the Hummingbird DocC Middleware project authors
+// Licensed under the EUPL 1.2 or later.
+//
+// See LICENSE for license information
+// See CONTRIBUTORS for the list of Hummingbird DocC Middleware project authors
+//
+// ===----------------------------------------------------------------------===
+
+extension String {
+    /// A namespace that defines the format patterns used to generate strings.
+    enum Format {
+        /// A namespace that defines the format patterns used to generate relative path representations.
+        enum Path {
+            /// A format pattern used to generate relative paths that starts with the `/` string and finishes with the `.doccarchive` string.
+            static let archive = "/%@.doccarchive"
+            /// A format pattern used to generate relative paths that starts with the `/data` string.
+            static let data = "/data/%@"
+            /// A format pattern used to generate relative paths that starts with the `/docs` string.
+            static let docs = "/docs/%@"
+            /// A format pattern used to generate relative paths that finishes with the `/documentation` string.
+            static let documentation = "%@documentation"
+            /// A format pattern used to generate relative paths for JSON documentation files.
+            static let documentationJSON = "/data/documentation/%@.json"
+            /// A format pattern used to generate relative paths that starts and finishes with the `/` string.
+            static let folder = "/%@/"
+            ///A format pattern used to generate relative paths that finishes with the `/` string.
+            static let forwardSlash = "%@/"
+            /// A format pattern used to generate relative paths for index files.
+            static let index = "%@/%@/index.html"
+            /// A format pattern used to generate relative paths that starts with the `/` string.
+            static let root = "/%@"
+        }
+    }
+}