process cases of ALT as special rules

test/StgSharpDebug/Program.cs

@@ -5,13 +5,13 @@
 // SPDX-License-Identifier: MIT
 // -----------------------------------------------------------------------------
 
-using Nitload.Graphics;
 using Nitload.Common.HighPerformance.Memory;
 using Nitload.Common.Internal;
+using Nitload.Common.Timing;
+using Nitload.Common.Timing;
+using Nitload.Graphics;
 using Nitload.Mathematics;
 using Nitload.Mathematics.Numeric;
-using Nitload.Common.Timing;
-using Nitload.Common.Timing;
 using System;
 using System.Runtime.InteropServices;
 
@@ -28,6 +28,13 @@ namespace Nitload
                                     string[] args
         )
         {
+            // Select the managed-only emitter preview before initializing the normal runtime.
+            if (args.Length > 0 && args[0] == "--regex-preview")
+            {
+                Environment.ExitCode = TestRegexGenerate.Run(args[1..]);
+                return;
+            }
+
             try
             {
                 World.Initialize(new()
@@ -39,13 +46,8 @@ namespace Nitload
                      // .UseModule<GraphicModule>()
                      .InitializeModule();
 
-                _ = SlabAllocator.FromBuffer<int>(
-                    (nuint)NativeMemory.AlignedAlloc(65536 * 4, 4),
-                    65536,
-                    buffer => NativeMemory.AlignedFree((void*)buffer)
-                    );
-
-                TestRegexAnalyse.Run();
+                // TestRegexAnalyse.Run();
+                _ = TestRegexGenerate.Run("abc|123");
 
                 // TestHlsf();