stop all work on text regex, ngra text regex is now frozen

2026-09-15 18:06:52 +08:00
parent 57587bec16
commit e04adf594a
33 changed files with 1008 additions and 49 deletions
@@ -0,0 +1,62 @@
+// -----------------------------------------------------------------------------
+// file="TestRegexGenerate"
+// Project: StgSharp
+// Copyright (c) Nitload.
+// SPDX-License-Identifier: MIT
+// -----------------------------------------------------------------------------
+
+using Nitload.RegularAnalysis.Abstraction;
+using Nitload.RegularAnalysis.Text;
+using System;
+using System.Collections.Generic;
+using System.Runtime.ExceptionServices;
+using static Nitload.RegularAnalysis.Text.TextRegexSourceGen;
+
+namespace Nitload
+{
+    internal static class TestRegexGenerate
+    {
+
+        public static int Run(
+                          string arg
+        )
+        {
+            Console.WriteLine($"Text regex to be tested: {arg} :\n\n\n");
+            Print(arg);
+            return 0;
+        }
+
+        private static void Print(
+                            string pattern
+        )
+        {
+            TextRegexSource analysis = RegexAnalyzer.Analyze(pattern);
+            if (analysis.AnalyseException is not null) {
+                ExceptionDispatchInfo.Throw(analysis.AnalyseException);
+            }
+
+            SequenceEmitter<string> body = new();
+            List<SequenceEmitter<string>> functions = [];
+            SourceGenContext context = new();
+            ExitLabel local_fail = context.RequestExitLabel(ExitKind.MatchFailed);
+            ExitLabel backtrack = local_fail;
+            ExitLabel end = context.RequestExitLabel(ExitKind.MatchEnd);
+            GenerateMethodSource(analysis.Ast.Root, body, functions, context, local_fail, ref backtrack);
+            _ = body.AppendLine($"goto {end.GetLabelName()};")
+                    .AppendLine($"{local_fail.GetLabelName()}: {{}}")
+                    .AppendLine("// TODO(NGRA): Produce the root failure result here.")
+                    .AppendLine($"{end.GetLabelName()}: {{}}");
+
+            foreach (string line in body.ToList()) {
+                Console.WriteLine(line);
+            }
+            foreach (SequenceEmitter<string> function in functions)
+            {
+                foreach (string line in function.ToList()) {
+                    Console.WriteLine(line);
+                }
+            }
+        }
+
+    }
+}