add culture based caching

Readme.md

@@ -93,6 +93,16 @@ namespace MyTestConsoleApp
     );
 
     public static ResourceManager ResourceManager => _ResourceManager.Value;
+    
+    private static CultureInfo GetDefaultCulture()
+    {
+        return CultureInfo.CurrentCulture;
+    }
+
+    private static IResourceString AddToCultureCache(IResourceString source)
+    {
+        return new CultureBasedCachedString(source, GetDefaultCulture);
+    }
 
     #endregion // ResourceManager  
     
@@ -101,16 +111,17 @@ namespace MyTestConsoleApp
     internal static class Greetings 
     {
         private static readonly Lazy<IResourceString> LazyFormat = new Lazy<IResourceString>(
-            () => new ResourceManagerString("Greetings", ResourceManager, CultureInfo.CurrentCulture),
+            () => AddToCultureCache(new ResourceManagerString("Greetings", ResourceManager, GetDefaultCulture)),
             LazyThreadSafetyMode.PublicationOnly
         );
 
         public static IResourceString Format => LazyFormat.Value;
         
-        public static IResourceString From(IResourceString name) => new FormattedResourceString(
+        public static IResourceString From(IResourceString name) => AddToCultureCache(new FormattedResourceString(
             Format, 
+            GetDefaultCulture,
             name
-        );
+        ));
 
     } 
 
@@ -119,7 +130,7 @@ namespace MyTestConsoleApp
     #region World 
 
     private static readonly Lazy<IResourceString> LazyWorld = new Lazy<IResourceString>(
-        () => new ResourceManagerString("World", ResourceManager, CultureInfo.CurrentCulture),
+        () => AddToCultureCache(new ResourceManagerString("World", ResourceManager, GetDefaultCulture)),
         LazyThreadSafetyMode.PublicationOnly
     );
 
@@ -181,7 +192,7 @@ the source code generator transforms it into the following `C#` class members:
 #region World 
 
 private static readonly Lazy<IResourceString> LazyWorld = new Lazy<IResourceString>(
-    () => new ResourceManagerString("World", ResourceManager, CultureInfo.CurrentCulture),
+    () => AddToCultureCache(new ResourceManagerString("World", ResourceManager, GetDefaultCulture)),
     LazyThreadSafetyMode.PublicationOnly
 );
 
@@ -206,17 +217,18 @@ the generator generates following code to support the formatted string:
 internal static class Greetings 
 {
   private static readonly Lazy<IResourceString> LazyFormat = new Lazy<IResourceString>(
-    () => new ResourceManagerString("Greetings", ResourceManager, CultureInfo.CurrentCulture),
+    () => AddToCultureCache(new ResourceManagerString("Greetings", ResourceManager, GetDefaultCulture)),
     LazyThreadSafetyMode.PublicationOnly
   );
 
   public static IResourceString Format => LazyFormat.Value;
   
-  public static IResourceString From(IResourceString p1, IResourceString p2) => new FormattedResourceString(
-    Format, 
+  public static IResourceString From(IResourceString p1, IResourceString p2) => AddToCultureCache(new FormattedResourceString(
+    Format,
+    GetDefaultCulture, 
     p1,
     p2
-  );
+  ));
 } 
 
 #endregion // Greetings  
@@ -234,11 +246,11 @@ In cases where the element with the format string includes a comment element lik
 the source generator extracts the parameter names from the comment instead of using generic names:
 
 ```cs
-public static IResourceString From(IResourceString name, IResourceString otherName) => new FormattedResourceString(
+public static IResourceString From(IResourceString name, IResourceString otherName) => AddToCultureCache(new FormattedResourceString(
     Format, 
     name,
     otherName
-);
+));
 ```
 
 This allows for more descriptive parameter names in the generated code.
@@ -278,7 +290,10 @@ This allows for more descriptive parameter names in the generated code.
 - Provides access to resource strings stored in `resx` files or other resource sources.
 - Handles retrieving the localized value for the specified `CultureInfo`.
 
-Great! Based on the provided code for the console app `ResourceString.Net.App.Console`, let's enhance the Readme.md file to include instructions on how to use the console app and generate a C# class based on a given resource file.
+### CultureBasedCachedString
+
+- Implements the `IResourceString` interface.
+- Enhances performance by avoiding redundant resource string lookups and reducing the overhead associated with repeated string generation.
 
 ## Console App: ResourceString.Net.App.Console