From d7b4c382cd5fa3daf94cfb320d8b1c84f329046c Mon Sep 17 00:00:00 2001
From: Developer 02 <developer02@didaloghe.onmicrosoft.com>
Date: Wed, 18 Dec 2024 18:10:52 +0100
Subject: [PATCH] =?UTF-8?q?fix(StringExtensions):=20Die=20Hauptformel=20de?=
 =?UTF-8?q?r=20ToTag-Methode=20wurde=20von=20(x=20/=20y)=20in=20[(x=20-=20?=
 =?UTF-8?q?1)=20/=20y=20+=201]=20ge=C3=A4ndert,=20um=20korrekt=20zu=20grup?=
 =?UTF-8?q?pieren.=20=20-=20Aktualisierte=20Dokumentationskommentare?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../Config/AsymCryptParams.cs                 |  8 ++++----
 .../Config/StringExtensions.cs                | 19 +++++++++----------
 2 files changed, 13 insertions(+), 14 deletions(-)

diff --git a/DigitalData.Core.Security/Config/AsymCryptParams.cs b/DigitalData.Core.Security/Config/AsymCryptParams.cs
index c4ef697..7547f50 100644
--- a/DigitalData.Core.Security/Config/AsymCryptParams.cs
+++ b/DigitalData.Core.Security/Config/AsymCryptParams.cs
@@ -41,11 +41,11 @@ namespace DigitalData.Core.Security.Config
         /// <br />
         /// - <see cref="StringExtensions.ToTag(DateTime, string)" /> is used when converting to tag.
         /// <br />
-        /// - If the format contains the "//" symbol, the method divides the numeric value derived from the left side of the format 
-        /// by the numeric value of the right side of the format string. For instance:
+        /// - If the format contains the symbol “//”, the method divides the numeric value obtained from the left side of the format
+        ///   by one minus the numeric value obtained from the right side of the format string and adds one. For instance:
         /// <br />
-        /// - If the date is 02.03.2024 and the format is "MM//2", it extracts the month (02), divides it by 2 (resulting in 1),
-        ///   and returns "1".
+        /// - If the date is 02.03.2024 and the format is "MM//2", it extracts the month (02), subtracts one (3), divides it by 2,
+        ///   rounds down the outgoing number (1), adds one to the number (resulting in 2).
         ///   <br />
         /// - If the format does not contain "//", the method uses the default <see cref="DateTime.ToString"/> format.
         /// <br />
diff --git a/DigitalData.Core.Security/Config/StringExtensions.cs b/DigitalData.Core.Security/Config/StringExtensions.cs
index 379af2e..889075f 100644
--- a/DigitalData.Core.Security/Config/StringExtensions.cs
+++ b/DigitalData.Core.Security/Config/StringExtensions.cs
@@ -13,15 +13,14 @@
         /// <summary>
         /// Converts a <see cref="DateTime"/> to a formatted string based on the specified format string.
         /// <br />
-        /// - If the format contains the "//" symbol, the method divides the numeric value derived from the left side of the format 
-        /// by the numeric value of the right side of the format string. For instance:
+        /// - If the format contains the symbol “//”, the method divides the numeric value obtained from the left side of the format
+        ///   by one minus the numeric value obtained from the right side of the format string and adds one. For instance:
         /// <br />
-        /// - If the date is 02.03.2024 and the format is "MM//2", it extracts the month (02), divides it by 2 (resulting in 1),
-        ///   and returns "1".
+        /// - If the date is 02.03.2024 and the format is "MM//2", it extracts the month (02), subtracts one (3), divides it by 2,
+        ///   rounds down the outgoing number (1), adds one to the number (resulting in 2).
         ///   <br />
         /// - If the format does not contain "//", the method uses the default <see cref="DateTime.ToString"/> format.
         /// <br />
-        /// This method provides a way to format the date based on typical or customized rules, including mathematical operations like division.
         /// </summary>
         /// <param name="date">The <see cref="DateTime"/> value to be formatted.</param>
         /// <param name="format">The format string that dictates the formatting of the date. If the format includes the "//" symbol, 
@@ -51,7 +50,7 @@
                 if (mode == 0)
                     throw new DivideByZeroException("Division by zero is not allowed.");
 
-                var result = dateValue / mode;
+                var result = (dateValue - 1) / mode + 1;
                 return result.ToString();
             }
 
@@ -61,11 +60,11 @@
         /// <summary>
         /// Converts a <see cref="DateTime"/> to a formatted string based on the specified format string.
         /// <br />
-        /// - If the format contains the "//" symbol, the method divides the numeric value derived from the left side of the format 
-        /// by the numeric value of the right side of the format string. For instance:
+        /// - If the format contains the symbol “//”, the method divides the numeric value obtained from the left side of the format
+        ///   by one minus the numeric value obtained from the right side of the format string and adds one. For instance:
         /// <br />
-        /// - If the date is 02.03.2024 and the format is "MM//2", it extracts the month (02), divides it by 2 (resulting in 1),
-        ///   and returns "1".
+        /// - If the date is 02.03.2024 and the format is "MM//2", it extracts the month (02), subtracts one (3), divides it by 2,
+        ///   rounds down the outgoing number (1), adds one to the number (resulting in 2).
         ///   <br />
         /// - If the format does not contain "//", the method uses the default <see cref="DateTime.ToString"/> format.
         /// <br />