Expand functionality

Core/NetArgumentParser/Subcommands/ParserQuantum.cs

@@ -209,6 +209,28 @@ public IEnumerable<ICommonOption> FindOptions(
         return foundOptions.Concat(recursiveFoundOptions);
     }
 
+    public bool FindFirstOptionByLongName(string longName, bool recursive, out ICommonOption? foundOption)
+    {
+        IEnumerable<ICommonOption> foundOptions = FindOptions(t => t.LongName == longName, recursive);
+        foundOption = foundOptions.FirstOrDefault();
+
+        return foundOption is not null;
+    }
+
+    public bool FindFirstValueOptionByLongName<T>(
+        string longName,
+        bool recursive,
+        out IValueOption<T>? foundOption)
+    {
+        IEnumerable<ICommonOption> foundOptions = FindOptions(
+            t => t.LongName == longName && t is IValueOption<T>,
+            recursive);
+
+        foundOption = foundOptions.FirstOrDefault() as IValueOption<T>;
+
+        return foundOption is not null;
+    }
+
     protected virtual void AddDefaultOptions()
     {
         foreach (ParserQuantum quantum in _subcommands.Concat([this]))

Documentation/ParserGenerationUsingAttributes.md

@@ -289,7 +289,7 @@ Using attributes in C# imposes a restriction on their argument types. An attribu
 - `MultipleValueOption` choices.
 - Custom after handing action and after value parsing action.
 
-However, you can find the option using `FindOptions()` method and further configure it.
+However, you can find the option using `FindOptions()`, `FindFirstOptionByLongName()`, or a similar method, and then configure it.
 
 ```cs
 var generator = new ArgumentParserGenerator();

TODO.md

@@ -3,3 +3,6 @@ This is the TODO file where you can find some features and content that need to
 
 ## Features
 - [ ] Come up with new features.
+- [ ] Add mutually inclusive groups.
+- [ ] Add the ability to sort options (by name, by weight, etc) in application description generator.
+- [ ] Add XML documentation.